CN119348071B - A European guide groove integrated corner joint mold and working method thereof - Google Patents

Abstract

The European-style guide slot integrated angle connecting die comprises a lower die, an upper die, a top strip automatic cutting mechanism, a soft sealing strip automatic inserting mechanism and a demolding mechanism, wherein the lower die comprises a first lower die set and a second lower die set, a lower die cavity and a side die cavity are arranged on the first lower die set, the upper die is arranged above the lower die and matched with each other, the top strip automatic cutting mechanism is arranged on the second lower die set and arranged on one side of the side die cavity, the soft sealing strip automatic inserting mechanism is arranged on the second lower die set, the soft sealing strip automatic inserting mechanism is matched with the top lifting automatic cutting mechanism, and the demolding mechanism is arranged on the lower die. According to the invention, the two corner connecting molds are integrated on one mold and the sealing strip with the corner is inserted into the main body butt joint mold cavity by matching with the automatic cutting system, so that two products which originally need to be separated in corner connecting are simultaneously finished in two corner connecting positions on one mold, the working efficiency is improved, and the two corner connecting molds are combined into one mold, so that the production cost is reduced.

Description

European guide groove integrated corner connecting die and working method thereof

Technical Field

The invention belongs to the technical field of sealing strip processing, and particularly relates to an European guide groove integrated angle connecting die and a working method thereof.

Background

The design of automobile body is increasingly pursued to be attractive and personalized, more and more automobiles adopt the modeling with the corner when the modeling of the automobile door C column is designed, but because the sealing strips are straight, the modeling with the corner cannot be made by the automobile body, all the sealing strips are required to be spliced into a whole through butt joint and then are in butt joint with the sealing strips of the main body guide groove, so that the whole C column is formed, the traditional C column mould is divided into two independent moulds, one independent sealing strip with the corner is connected, and the other independent sealing strip with the main body guide groove and the sealing strip with the corner are connected, so that when a complete C column product is connected, two independent moulds are required, two injection moulding presses are required, the production investment is large, and an operator needs to carry and clamp the product twice between the two injection moulding presses, which is time-consuming and labor-consuming.

In addition, currently in the actual production process, in order to improve production efficiency, an integrated corner connecting die is adopted, and two corner connecting positions are connected at the same time to finish corner connecting at one time. However, because the two sealing strips with the corner modeling are soft, the two sealing strips cannot be kept in a folded state, lips on the sealing strips are easy to bend and deform, and because the plugboard die-connecting clamp is the corner modeling corner point, the weight of the two sealing strips is large, operators cannot push the plugboard die-connecting clamp with the sealing strips into a die cavity while keeping the shape, and the processing difficulty is increased;

when the top strip sealing strip in the injection molding process flow is inserted, personnel are required to pre-assemble the strip on the die, the sealing strip is inserted into the die cavity through the insertion mechanism on the die, and as two ends of the same sealing strip are required to be connected with the die on two different dies, the personnel are required to pre-assemble the strip twice.

Therefore, the existing processing technology of the C-column sealing strip is still to be improved.

Disclosure of Invention

The invention aims to overcome the defects, and aims to provide the European-style guide slot integrated corner connecting die which is simple in structure, reasonable in design, easy to produce, high in automation degree, capable of reducing the amount of manual labor, high in working efficiency, large in storage amount and flexible in application.

In order to achieve the above purpose, the invention provides an European guide groove integrated angle connecting die, comprising:

the lower die comprises a first lower die set and a second lower die set, the second lower die set is arranged above the first lower die set, the first lower die set and the second lower die set are connected in a lifting mode, a group of lifting driving mechanisms for lifting the second lower die set are arranged on the outer side of the first lower die set, a lower die cavity and a side die cavity are arranged on the first lower die set, and the side die cavity is arranged on one side of the lower die cavity;

The upper die is arranged above the lower die and is matched with the lower die;

The automatic cutting mechanism is arranged on the second lower module and is arranged on one side of the side die cavity;

The automatic soft sealing strip inserting mechanism is arranged on the second lower module and on one side of the lower die cavity, and is matched with the automatic top strip inserting mechanism;

The demoulding mechanism is arranged on the lower mould and is matched with the automatic strip ejection mechanism and the automatic soft sealing strip insertion mechanism.

The automatic cutting mechanism for the top strip comprises a cutting power mechanism for driving a cutting sheet metal clamp, wherein the cutting power mechanism is connected with a lower die, the cutting power mechanism comprises a cutting driving mechanism, and the output end of the cutting driving mechanism is connected with a power connection rotating column through a connector;

the cutting sheet metal clamp is arranged on the lower die and is movably connected with the lower die, and the output end of the cutting power mechanism can drive the cutting sheet metal clamp to move.

Further, the second lower die set comprises a second lower die plate, a lower die extension section is arranged on one side of the second lower die plate, which is located on the automatic cutting mechanism of the top strip, a sliding groove is formed in the lower die extension section, a sliding block is arranged in the sliding groove, the sliding block is connected with a cutting metal plate clamp through a group of positioning columns, the tail end of the sliding block is connected with a cutting power mechanism through a power connection rotating column and a power connection block, after the power connection rotating column and the power connection block are combined, the cutting power mechanism can rotate on the power connection rotating column and push the cutting power mechanism, and the power connection rotating column drives the power connection block again, so that the sliding block can slide in radian to become a cutting with radian.

The lower die extension section is positioned on two sides of the sliding groove and is provided with a group of limiting pressing blocks, and the limiting mechanisms comprise a third limiting block and a fourth limiting block which are arranged on two sides of the sliding groove;

The cutting power driving mechanism comprises a lower die, a cutting power driving mechanism, a cutting assembly, a mounting platform, a lower die cavity, a lower die and a plug board mechanism and a sliding block assembly, wherein the mounting platform is arranged in an inclined mode, a group of guide grooves are formed in the mounting platform, a group of first limiting blocks are arranged on the outer sides of the guide grooves, a group of second limiting blocks are arranged at one end, away from the cutting power driving mechanism, of the mounting platform, an inclined top block is arranged on one side, located on the mounting platform, of the lower die, a supporting block is arranged on one side, located on the lower die cavity, of the lower die, a plug board mechanism and the sliding block assembly are respectively arranged on two sides, located on the side, located on the opposite side, of the sliding block assembly, of the lower die cavity, and a second sliding block is arranged on the opposite side, located on the side, of the sliding block assembly.

Preferably, the cutting sheet metal clamp comprises a clamp bottom plate, a strip loading sheet metal, a group of supporting blocks and a group of elbow clamp positioning components, wherein the strip loading sheet metal is arranged on the clamp bottom plate, the supporting blocks are arranged on the clamp bottom plate and are oppositely arranged on two sides of the strip loading sheet metal, the elbow clamp positioning components are arranged on one side of the clamp bottom plate through mounting seats, and the positioning ends of the elbow clamp positioning components are provided with sealing strip pressing blocks.

The automatic inserting mechanism of the soft sealing strip comprises an inserting plate die-connecting clamp, wherein the inserting plate die-connecting clamp is arranged on the lower die and is movably connected with the lower die;

The cutting power driving mechanism is arranged on the lower die and is arranged at the low-level end of the mounting platform, and the output end of the cutting power driving mechanism is connected with the plugboard die-connecting clamp;

the cutting power driving mechanism comprises a sliding guide mounting plate, a first sliding groove is formed in the sliding guide mounting plate, a power sliding block is arranged in the first sliding groove, and a group of first limiting pressing blocks are arranged on two sides of the sliding guide mounting plate, which are positioned on the power sliding block;

The first cutting driving mechanism is connected with the lower die through a mounting seat, the output end of the first cutting driving mechanism is connected with the power sliding block through a flange connection block, and the inserting plate die-connecting clamp is arranged on the mounting platform and connected with the power sliding block.

Further, the plugboard die-connecting clamp comprises a first clamp bottom plate, a group of guide blocks, a plugboard assembly, a sliding block and a pressing block mechanism, wherein a lower die cavity is arranged on the first clamp bottom plate, a sliding rail assembly is arranged on one side of the lower die cavity, the pressing block mechanism is connected with a sliding plate in the sliding rail assembly, and the guide blocks are arranged below the first pressing clamp bottom plate and are in sliding connection with the guide grooves;

the plugboard assembly and the sliding block are oppositely arranged at two sides of the lower die cavity, the sliding block is in sliding connection with the sliding rail assembly, and the pressing block mechanism is arranged at one side of the sliding block;

The upper plugboard assembly is arranged above the lower plugboard assembly, the upper plugboard assembly is hinged with the lower die through a transfer frame, and the lower plugboard assembly is in sliding connection with the second lower die set.

Still further, briquetting mechanism includes upset base, upset connecting block, briquetting, the upset base is installed on the lower mould, just one side of upset base is connected with slide rail assembly through the connecting block, on the upset base was located to the upset connecting block, its one end was equipped with the gyro wheel, and the other end is connected with the briquetting, the gyro wheel is located oblique kicking block top, removes along oblique kicking block.

The lower plugboard module, the middle plugboard module and the upper plugboard module are arranged from bottom to top, two sides of the lower plugboard module, the middle plugboard module and the upper plugboard module are movably connected with a sliding rail on the lower die through sliding frames, and the shapes of the tail ends of the lower plugboard module, the middle plugboard module and the upper plugboard module are matched with the shape of the sealing strip.

Further preferably, the upper plugboard module comprises a first upper plugboard, a second upper plugboard and a third upper plugboard, wherein the first upper plugboard, the second upper plugboard and the third upper plugboard are all U-shaped, the second upper plugboard is arranged on the inner side of the first upper plugboard, and the third upper plugboard is arranged on the inner side of the second upper plugboard.

In addition, the demolding mechanism comprises a first demolding mechanism, a second demolding mechanism and a third demolding mechanism, wherein the first demolding mechanism comprises a first demolding power mechanism, a first demolding connecting rod is arranged at the output end of the first demolding power mechanism, and the first demolding connecting rod is connected with the plugboard assembly, the sliding block and the pressing block mechanism and is used for driving the plugboard assembly and the pressing block mechanism to turn up and move;

The second demolding mechanism comprises a second demolding power mechanism, the output end of the second demolding power mechanism is provided with a second demolding connecting rod, and the second demolding connecting rod is connected with the plugboard mechanism and the lower plugboard assembly and used for moving the plugboard mechanism and the lower plugboard assembly;

The third demoulding mechanism comprises a third demoulding power mechanism, and a third demoulding connecting rod for driving a sliding block in the sliding block assembly and the second sliding block to move is arranged at the output end of the third demoulding power mechanism.

Preferably, one end of the first demoulding connecting rod, which is close to the first demoulding power mechanism, is provided with a first conversion block, an opening groove is formed in the first conversion block, a connecting rod is arranged on a sliding plate in the sliding rail assembly, and the connecting rod is arranged in the opening groove;

The tail end of the second demolding connecting rod is provided with a perforation, a third connecting block is arranged in the perforation, the other end of the third connecting block is connected with a power rod hook for driving the plugboard assembly to move, and the lower part of the plugboard assembly is connected with the power rod hook through a connecting plugboard;

The middle plugboard module is provided with a group of fixing seats, a group of positioning bolts are arranged on the fixing seats, and when demoulding is carried out, the second demoulding connecting rod drives the second switching block to drive the driving part of the driving module to move forwards;

The third demolding connecting rod comprises a third demolding connecting rod main rod and a third demolding connecting rod branch rod, wherein the third demolding connecting rod branch rod is arranged on one side of the third demolding connecting rod main rod, a connecting rod is arranged between the third demolding connecting rod main rod and the third demolding connecting rod branch rod, two ends of the connecting rod are respectively provided with a waist hole, the third demolding connecting rod main rod and the third demolding connecting rod branch rod are connected with corresponding waist holes through connecting shafts, a sliding plate in the sliding block assembly is connected with the corresponding connecting shafts, the connecting shafts are arranged in the waist holes at one end of the connecting rod, the second sliding block is arranged at the tail end of the third demolding connecting rod main rod, when the third demolding power mechanism drives the third demolding connecting rod to extend, the second sliding block is driven to move away from the mold cavity along the power direction in the extending process of the third demolding connecting rod, and meanwhile, the sliding plate in the sliding block assembly drives the sliding block assembly to retreat in the waist holes, and accordingly the mold cavity is in an open state.

The technical scheme can be seen that the invention has the following beneficial effects:

1. according to the European-style guide groove integrated corner connecting die, two corner connecting dies are integrated on one die and matched with an automatic cutting system to insert a sealing strip with a corner into a main body butt joint die cavity, so that two products which originally need to be separated for corner connecting are simultaneously connected at two corners required by the products on one die, repeated demolding and cutting by manpower are avoided, the working efficiency is improved, and the two dies are combined into one die, so that a part of common parts and an injection molding press are reduced, and the production cost is reduced.

2. According to the automatic cutting mechanism for the top strip, the structure of the die is optimized, and the cutting positioning mechanism and the cutting power mechanism are matched, so that the top strip sealing strip is inserted into the die cavity of the die, automatic cutting is realized, the problem that the current cutting is difficult is well solved, and as the sealing strip is arranged on the cutting sheet metal clamp at one time, the step of manually cutting the sealing strip again when the other end of the sealing strip is connected with the die originally can be eliminated, and when the other end of the sealing strip for the top strip is required to be connected with the die, only the other end of the cutting sheet metal clamp is required to be connected with the other die by a robot, so that the requirement of repeated manual cutting is reduced, and the production efficiency is improved.

3. The automatic soft sealing strip inserting mechanism optimizes the structure of the die, enables the sealing strip which needs to be inserted into the main die cavity to be kept in a turnover state through the upper and lower matching of the pressing block mechanism on the inserting plate die-connecting clamp and the supporting block, and pushes the inserting plate die-connecting clamp to enable the sealing strip to enter the die cavity under the guidance of the die cavity inserting plate staggered layer guiding structure through the automatic pushing device, so that the cutting requirement of an integrated die joint angle is met, the number of times of manual cutting is reduced, and the degree of automation and the production efficiency are improved.

4. The setting of the inserting plate and the sliding block component guides the sealing strip into the die receiving cavity by the mutual matching of the guide on the inserting plate, the guide of the sliding block component and the guide of the lower die cavity when the sealing strip enters the die cavity.

5. Under the radian limit of sliding block and sliding groove in the sealing strip inserting process, the advancing distance of the sealing strip continuously changes the strip entering angle, so that the requirements of the die receiving cavity for radian of the die receiving product and the difficult strip entering condition with radian are met.

6. The flashboard mechanism comprises a lower flashboard module, a middle flashboard module and an upper flashboard module, wherein the lower flashboard module, the middle flashboard module and the upper flashboard module adopt a plurality of layers of flashboard, and sealing strips can be staggered in a layered manner when entering strips, so that gaps are formed according to the shapes of the sealing strips when entering strips, and better entering strips are facilitated.

Drawings

FIG. 1 is a schematic diagram of an European style guide slot integrated corner mold according to the present invention;

FIG. 2 is a schematic diagram of the European style guide slot integrated corner mold in the closed state;

FIG. 3 is a schematic diagram of the European style guide slot integrated corner mold in the open state;

FIG. 4 is a schematic view of the structure of the automatic top strip inserting mechanism and the automatic soft sealing strip inserting mechanism according to the present invention in the initial position;

FIG. 5 is a schematic view of a mounting of a die clamp for a plugboard according to the present invention;

FIG. 6 is a schematic view of the first sealing strip and the second sealing strip inserted into the cavity of the lower die in the invention;

FIG. 7 is a front view showing the second lower module lowered after the sealing strip is inserted into the cavity of the mold according to the present invention;

FIG. 8 is a schematic view of the insert sheet metal clamp of the present invention placed into a mold cavity;

FIG. 9 is a schematic view of a third weatherstrip insert side cavity according to the present invention;

FIG. 10 is a schematic view of the installation of the stripping mechanism of the present invention;

FIG. 11 is a schematic view of the present invention with the release mechanism open;

FIG. 12 is a schematic diagram of the partial result of the second lower module according to the present invention;

FIG. 13 is a partial schematic view of a slip sheet fixture of the present invention;

FIG. 14 is a schematic view of the connection of the cutting sheet metal clamp to the handling bracket of the present invention;

FIG. 15 is a schematic view of the automatic soft seal strip inserting mechanism according to the present invention;

FIG. 16 is a side view of the automatic soft seal strip insertion mechanism of the present invention;

FIG. 17 is a schematic view of a fork strap set according to the present invention;

FIG. 18 is a schematic view of the structure of the insert pin die bonding fixture of the present invention when it is placed in a die;

FIG. 19 is a side view of the insert plate die bonding fixture of the present invention shown in place in a mold;

FIG. 20 is a partial schematic view of a cutting power drive mechanism according to the present invention;

FIG. 21 is a partial schematic view of a panel splice mold clamp according to the present invention;

FIG. 22 is a drawing illustration of a carrier rack mounted insert panel die attach jig in accordance with the present invention;

FIG. 23 is a schematic view of a robotic handling of a card die-bonding jig in accordance with the present invention;

FIG. 24 is a schematic view of a first sealing strip and a second sealing strip in the present invention disposed on a die-plugging plate;

FIG. 25 is a partial schematic view of a first and second stripping mechanism according to the present invention;

FIG. 26 is a partial schematic view of a third stripping mechanism in accordance with the present invention;

FIG. 27 is a schematic view of the present invention after the first, second and third sealing strips are spliced;

In the figure, a lower die 1, an upper die 2, an automatic strip ejection and cutting mechanism 3, an automatic soft sealing strip inserting mechanism 4, a demolding mechanism 5, a first lower die set 101, a second lower die set 102 and an ejection driving mechanism 103; lower die extension 111, slide slot 112, slide block 113, positioning column 114, power connection rotation column 115, limit press block 116, limit mechanism 117, guide slot 12, first limit block 13, second limit block 14, oblique top block 15, support block 16, insert plate mechanism 17, slide block assembly 18, second slide block 19, third limit block 1171, fourth limit block 1172, power connection block 123, lower insert plate module 171, middle insert plate module 172, upper insert plate module 173, slide frame 174, first upper insert plate 1731, second upper insert plate 1732, third upper insert plate 1733, insert strip power mechanism 31, insert strip sheet metal clamp 32, clamp base 321, insert strip sheet metal 322, support block 323, toggle clamp positioning assembly 324, seal strip press block 325, insert strip driving mechanism 311, joint 312, transfer bracket 33, robotic transfer chuck 34 insert die clamp 41, insert power drive mechanism 42, first handling bracket 43, first robotic handling chuck 44, slide guide mounting plate 421, power slide 422, first limit block 423, first insert drive mechanism 424, flange block 4241, first clamp base 411, guide block 412, insert assembly 413, slide 414, press block mechanism 415, slide rail assembly 416, upper insert assembly 4131, lower insert assembly 4132, flip base 4151, flip connection block 4152, press block 4153, connection block 41511, roller 41521, press block 4153, first stripper power mechanism 51, first stripper link 52, second stripper power mechanism 53, second stripper link 54, third stripper power mechanism 55, third stripper link 56, first transfer block 521, connecting rod 4161, the second adapter block 541, the driving module 5411, the third adapter block 5412, the power rod hook 5413, the connecting rod 4313, the positioning bolt 1721, the connecting rod 561, the first sealing strip 61, the second sealing strip 62, and the third sealing strip 63.

Detailed Description

The invention is further elucidated below in connection with the drawings and the specific embodiments.

Examples

An euro-type guide slot integrated corner mold as shown in fig. 1 to 23, comprising:

The lower die comprises a lower die 1, wherein the lower die 1 comprises a first lower die set 101 and a second lower die set 102, the second lower die set 102 is arranged above the first lower die set 101, the first lower die set 101 and the second lower die set 102 are connected in a lifting manner, a group of lifting driving mechanisms 103 for lifting the second lower die set 102 are arranged on the outer side of the first lower die set 101, a lower die cavity and a side die cavity are arranged on the first lower die set 101, and the side die cavity is arranged on one side of the lower die cavity;

The upper die 2 is arranged above the lower die 1, and the upper die 2 and the lower die are matched with each other;

The automatic cutting mechanism 3 is arranged on the second lower die set 102 and is arranged on one side of the side die cavity;

The automatic soft sealing strip inserting mechanism 4 is arranged on the second lower module 102 and on one side of the lower die cavity, and the automatic soft sealing strip inserting mechanism 4 is matched with the automatic strip ejecting and inserting mechanism 3;

the demoulding mechanism 5 is arranged on the lower mould 1 and is matched with the automatic strip ejection mechanism 3 and the automatic soft sealing strip insertion mechanism 4.

The automatic cutting mechanism 3 for the top strip comprises a cutting power mechanism 31 for driving a cutting sheet metal clamp 32, and the cutting power mechanism 31 is connected with the lower die 1;

The cutting sheet metal clamp 32 is arranged on the lower die 1, the cutting sheet metal clamp 32 and the lower die are movably connected, and the output end of the cutting power mechanism 31 can drive the cutting sheet metal clamp 32 to move.

The second lower die set 102 comprises a second lower die plate, a lower die extension section 111 is arranged on one side of the second lower die plate, which is positioned on the automatic cutting mechanism 3, of the top strip, a sliding groove 112 is arranged on the lower die extension section 111, a sliding block 113 is arranged in the sliding groove 112, the sliding block 113 is connected with the cutting metal plate clamp 32 through a group of positioning columns 114, the tail end of the sliding block 113 is connected with the cutting power mechanism 31 through a power connection rotating column 115 and a power connection block 123, after the power connection rotating column 115 and the power connection block 123 are combined, the cutting power mechanism 31 can rotate on the power connection rotating column 115 and push the cutting power mechanism while the cutting power connection rotating column 115 drives the power connection block 123, and accordingly the sliding block can slide with radian to become a cutting with radian.

A group of limiting press blocks 116 are arranged above the sliding blocks 113, and limiting mechanisms 117 are oppositely arranged on two sides of the sliding grooves 112 of the lower die extension section 111;

the cutting power driving mechanism comprises a lower die 1 and is characterized by further comprising a mounting platform, wherein the mounting platform is obliquely arranged, a group of guide grooves 12 are formed in the mounting platform, a group of first limiting blocks 13 are arranged on the outer sides of the guide grooves 12, a group of second limiting blocks 14 are arranged on one end, away from a cutting power driving mechanism 42, of the mounting platform, an oblique jacking block 15 is arranged on one side, located on the mounting platform, of the lower die 1, and a supporting block 16 is arranged on one side, located on a die cavity of the lower die, of the lower die 1.

Under the radian limit of the sliding block 113 and the sliding groove 112 in the sealing strip inserting process, the advancing distance of the sealing strip continuously changes the strip entering angle, so that the radian requirement of a die receiving cavity caused by the radian of a die receiving product is met, and the problem of strip entering difficulty with the radian is solved.

The limiting mechanism 117 shown in fig. 12 includes a third limiting block 1171 and a fourth limiting block 1172, where the third limiting block 1171 and the fourth limiting block 1172 are relatively disposed at two sides of the sliding slot 112.

The two sides of the lower die 1, which are positioned on the side die cavities, are respectively provided with a plugboard mechanism 17 and a slide block assembly 18, and the side die cavities, which are positioned on the opposite side of the slide block assembly 18, are provided with second slide blocks 19.

The cutting metal plate fixture 32 as shown in fig. 9 and fig. 12 to 14 comprises a fixture bottom plate 321, a strip loading metal plate 322, a group of supporting blocks 323 and a group of elbow clamp positioning components 324, wherein the strip loading metal plate 322 is arranged on the fixture bottom plate 321, the supporting blocks 323 are arranged on the fixture bottom plate 321 and are oppositely arranged on two sides of the strip loading metal plate 322, the elbow clamp positioning components 324 are arranged on one side of the fixture bottom plate 321 through mounting seats, and the positioning ends of the elbow clamp positioning components 324 are provided with sealing strip pressing blocks 325.

The cutting power mechanism 31 comprises a cutting driving mechanism 311, and the output end of the cutting driving mechanism 311 is connected with the power connection rotary column 115 through a connector 312;

The sliding groove 112 adopts a T-shaped radian sliding groove, the sliding block 113 adopts a T-shaped radian positioning sliding block, and the sliding block is matched with the sliding groove 112. The cutting power mechanism 31 adopts a servo motor, and can also adopt other driving mechanisms according to the requirement, so that the production requirement can be met.

One side of the cutting sheet metal clamp 32 is provided with a carrying bracket 33, and the carrying bracket 33 is connected with a robot carrying chuck 34. When in work, the robot is convenient to control.

During operation, a robot (not shown in the figure) carries the cutting sheet metal clamp 32 with the sealing strip on the lower die 1, meanwhile, a positioning hole of a clamp bottom plate 321 in the cutting sheet metal clamp 32 is in butt joint with a positioning column 114 on a T-shaped radian positioning sliding block 113 in the lower die 1, and the top on a fourth limiting block 1172 lifts up a lip on the strip entering side of the sealing strip so as to facilitate subsequent insertion of the lip;

after the butt joint is finished, the cutting driving mechanism 311 in the cutting power mechanism 31 drives the power connection block 123 and the power connection rotary column 115 to drive the sliding block 113 to advance along the sliding groove 112, and simultaneously the sliding block 113 drives the cutting metal plate clamp 32 to advance along the radian of the T-shaped radian sliding groove of the sliding groove 112 into the third limiting block 1171 and the fourth limiting block 1172 until the die joint position is stopped;

The cutting sheet metal clamp 32 moves forward to enter the die cavity simultaneously with the sealing strip in the operation process, the sealing strip is guided into the die cavity of the die by the mutual cooperation of the guide on the plugboard mechanism 17, the guide on the sliding block assembly 18 and the guide of the lower die cavity when entering the die cavity, and the angle of entering the sealing strip is continuously changed along with the advancing distance under the limit of the radian of the sliding block 113 and the sliding groove 112 in the insertion process, so that the radian requirement of the die cavity caused by the radian of the die product and the problem of difficult entering the strip with the radian are met.

The automatic soft sealing strip inserting mechanism 4 shown in fig. 5 to 7, 10 and 15 to 23 comprises a plugboard die-connecting clamp 41, wherein the plugboard die-connecting clamp 41 is arranged on the lower die 1 and is movably connected with the lower die 1;

The cutting power driving mechanism 42 is arranged on the lower die 1 and is arranged at the low-level end of the mounting platform, and the output end of the cutting power driving mechanism 42 is connected with the plugboard die-connecting clamp 41;

the cutting power driving mechanism 42 comprises a sliding guide mounting plate 421, a first sliding groove is formed in the sliding guide mounting plate 421, a power sliding block 422 is arranged in the first sliding groove, and a group of first limiting pressing blocks 423 are arranged on two sides of the sliding guide mounting plate 421, which are positioned on the power sliding block 422;

The first cutting driving mechanism 424, the first cutting driving mechanism 424 is connected with the lower die 1 through a mounting seat, the output end of the first cutting driving mechanism is connected with the power slide block 422 through a flange connecting block 4241, and the inserting plate die connecting clamp 41 is arranged on the mounting platform and is connected with the power slide block 422.

The insert plate die-connecting clamp 41 as shown in fig. 15 to 16 comprises a first clamp bottom plate 411, a group of guide blocks 412, an insert plate assembly 413, a sliding block 414 and a pressing block mechanism 415, wherein a lower die cavity is arranged on the first clamp bottom plate 411, a sliding rail assembly 416 is arranged on one side of the lower die cavity, the pressing block mechanism 415 is connected with a sliding plate in the sliding rail assembly 416, and the guide blocks 412 are arranged below the first clamp bottom plate 411 and are in sliding connection with the guide grooves 12;

the insert plate assembly 413 and the sliding block 414 are oppositely arranged at two sides of the lower die cavity, the sliding block 414 is in sliding connection with the sliding rail assembly 416, and the pressing block mechanism 415 is arranged at one side of the sliding block 414;

The insert plate assembly 413 includes an upper insert plate assembly 4131 and a lower insert plate assembly 4132, the upper insert plate assembly 4131 is disposed above the lower insert plate assembly 4132, the upper insert plate assembly 4131 is hinged to the lower die 1 through a transfer frame, and the lower insert plate assembly 4132 is slidably connected to the second lower die set 102.

The briquetting mechanism 415 shown in fig. 21 comprises a turnover base 4151, a turnover connecting block 4152 and a briquetting 4153, wherein the turnover base 4151 is installed on the lower die 1, one side of the turnover base 4151 is connected with the sliding rail assembly 416 through a connecting block 41511, the turnover connecting block 4152 is arranged on the turnover base 4151, one end of the turnover connecting block 4152 is provided with a roller 41521, the other end of the turnover connecting block is connected with the briquetting 4153, and the roller 41521 is located above the inclined top block 15 and moves along the inclined top block 15.

The board inserting mechanism 17 shown in fig. 17 is arranged on the lower die 1 and is movably connected with the lower die 1, the board inserting mechanism 17 comprises a lower board inserting module 171, a middle board inserting module 172 and an upper board inserting module 173, the lower board inserting module 171, the middle board inserting module 172 and the upper board inserting module 173 are arranged from bottom to top, two sides of the board inserting mechanism are movably connected with the sliding rail 104 on the lower die 1 through sliding frames 174, and the shapes of the tail ends of the lower board inserting module 171, the middle board inserting module 172 and the upper board inserting module 173 are matched with the shape of the sealing strip. The upper board module 173 includes a first upper board 1731, a second upper board 1732, and a third upper board 1733, wherein the first upper board 1731, the second upper board 1732, and the third upper board 1733 are all U-shaped, the second upper board 1732 is disposed on an inner side of the first upper board 1731, and the third upper board 1733 is disposed on an inner side of the second upper board 1732. The end surfaces of the lower plugboard module 171, the middle plugboard module 172 and the upper plugboard module 173 adopt staggered-layer guiding structures, and the staggered-layer guiding structures can be adjusted with the shape of the sealing strip. The strip is provided with a gap according to the shape of the sealing strip when being inserted, so that the strip is better inserted.

The first gripper base 411 further includes a first carrying bracket 43 and a first robotic carrying chuck 44, and one side of the first gripper base 411 is connected to the first robotic carrying chuck 44 through the first carrying bracket 43.

The automatic soft sealing strip inserting mechanism 4 works on the principle that a robot (not shown in the figure) carries the insert plate die-connecting clamp 41 of the soft sealing strip which is assembled in advance onto the lower die 1, and meanwhile, a guide block 412 on the insert plate die-connecting clamp 41 is respectively in butt joint with a guide groove 12 and a groove on a first clamp bottom plate 411 in the insert plate die-connecting clamp 41 and a convex block on a power sliding block 422 in the lower die 1.

After the butt joint is finished, the rollers 41521 on the pressing block mechanism 415 are driven by the reaction force of the inclined top blocks 15 on the lower die 1 to drive the overturning connecting blocks 4152 to rotate downwards around the overturning base 4151 to a limit position, at the moment, the pressing blocks 4153 arranged on the overturning connecting blocks 4152 press the upper side of the soft sealing strip, and meanwhile, the supporting blocks 16 on the lower die 1 drag the soft sealing strip from the lower side, so that the soft sealing strip is changed into a folded state clamped by the pressing blocks 4153 and the supporting blocks 16 under the half folding state on the plugboard die clamp 41.

The first cutting driving mechanism 424 of the cutting power driving mechanism 42 drives the power slider 422 to advance through the flange connection block 4241, and simultaneously the power slider 422. The insert plate die-connecting clamp 41 is driven to advance along the trapezoid direction into the third limiting block 1171 until the second limiting block 14 stops, and the pressing block mechanism 415 is always pressed on the soft sealing strip due to the reaction force of the inclined top block 15 to the roller 41521 in the advancing process, so that the whole process is in a turnover state.

The insert plate die-connecting clamp 41 simultaneously moves forward with the soft sealing strip into the die cavity, and the soft sealing strip and the lips which are easy to deform on the soft sealing strip are guided into the die cavity in batches by stages under the mutual cooperation of the front-back staggered insert plate guide on the insert plate mechanism 17 and the guide of the die cavity when the soft sealing strip enters the die cavity.

The demolding mechanism 5 shown in fig. 4 to 6 and 10 comprises a first demolding mechanism, a second demolding mechanism and a third demolding mechanism, wherein the first demolding mechanism comprises a first demolding power mechanism 51, a first demolding connecting rod 52 is arranged at the output end of the first demolding power mechanism 51, and the first demolding connecting rod 52 is connected with the plugboard assembly 413, the sliding block 414 and the pressing block mechanism 415 and is used for driving the plugboard assembly 413 and the pressing block mechanism 415 to turn up and the sliding block 414 to move;

The second demolding mechanism comprises a second demolding power mechanism 53, a second demolding connecting rod 54 is arranged at the output end of the second demolding power mechanism 53, and the second demolding connecting rod 54 is connected with the board inserting mechanism 17 and the lower board inserting assembly 4132 and used for moving the board inserting mechanism 17 and the lower board inserting assembly 4132;

The third demolding mechanism comprises a third demolding power mechanism 55, and a third demolding connecting rod 56 for driving the sliding block in the sliding block assembly 18 and the second sliding block 19 to move is arranged at the output end of the third demolding power mechanism 55.

It should be noted that, as shown in fig. 25, a first adapter block 521 is provided at an end of the first demolding link 52 near the first demolding power mechanism 51, an open slot is provided on the first adapter block 521, a connecting rod 4161 is provided on the sliding plate in the sliding rail assembly 416, and the connecting rod 4161 is provided in the open slot;

The tail end of the second demolding connecting rod 54 is arranged on a second adapter block 541, a driving module 5411 for driving the board inserting mechanism 17 is arranged on the second adapter block 541, a driving part of the driving module 5411 is arranged in corresponding grooves of the lower board inserting module 171 and the middle board inserting module 172 of the board inserting mechanism 17, a through hole is arranged at the tail end of the second demolding connecting rod 54, a third adapter block 5412 is arranged in the through hole, the other end of the third adapter block 5412 is connected with a power rod hook 5413 for driving the board inserting assembly 413 to move, and the lower part of the board inserting assembly 413 is connected with the power rod hook 5413 through a connecting rod 4313.

The middle insert plate module 172 is provided with a set of fixing seats, a set of positioning bolts 1721 are arranged on the fixing seats, and during demolding, the second demolding connecting rod 54 drives the second switching block 541 to drive the driving part of the driving module 5411 to move forwards, and as the second switching block 541 and the third switching block 5412 are connected with the second demolding connecting rod 54, the second demolding connecting rod 54 drives the second switching block 541 to drive the driving part of the driving module 5411 to move, and then drives the insert plate mechanism 17 and the lower insert plate in the lower insert plate assembly 4132 to move away from the mold cavity along the power direction;

The third demolding link 56 as shown in fig. 26 includes a third demolding link main rod and a third demolding link sub-rod, the third demolding link sub-rod is disposed on one side of the third demolding link main rod, a link 561 is disposed between the third demolding link main rod and the third demolding link sub-rod, two ends of the link 561 are respectively provided with a waist hole, the third demolding link main rod and the third demolding link sub-rod are connected with the corresponding waist holes through connecting shafts, a slide plate in the slide block assembly 18 is connected with the corresponding connecting shafts, the connecting shafts are disposed in the waist holes at one end of the link 561, and the second slide block 19 is disposed at the tail end of the third demolding link main rod. When the mold is in operation, the third demolding power mechanism 55 drives the third demolding connecting rod 56 to extend, in the extending process of the third demolding connecting rod 56, the second slide block 19 is driven to move away from the mold cavity along the power direction, meanwhile, the connecting shafts on the main rod of the third demolding connecting rod and the branch rod of the third demolding connecting rod move in the waist hole, and in the process, the slide plate in the slide block assembly 18 drives the slide block assembly 18 to retreat, so that the mold cavity is in an open state.

The finished sealing strip is made up of a first sealing strip 61, a second sealing strip 62 and a third sealing strip 63.

The working method of the European guide groove integrated corner connecting die comprises the following steps of 1) driving an upper die 2 to rise and lift by an injection molding press, wherein a slide block in a plate inserting mechanism 17, a slide block assembly 18 and a second slide block 19 are positioned at a cutting standby position, and a cutting power driving mechanism 42 and a cutting power mechanism 31 are positioned at a cutting clamp placing standby position;

2) The jacking driving mechanism 103 on the first lower module 101 stretches out to lift the whole second lower module 102, and then the plugboard die-connecting clamp 41 with the first sealing strip 61 and the second sealing strip 62 is put into a corresponding chute on the second lower module 102 and is connected with the cutting power driving mechanism 42, the oil cylinder on the cutting power driving mechanism 42 stretches out to push the plugboard die-connecting clamp 41 to advance until the outer side head end of the second sealing strip 62 is inserted into a die cavity formed by the cooperation of the first lower module 101, the plugboard mechanism 17 and the second sliding block 19;

3) The jacking driving mechanism 103 on the first lower module 101 is retracted to lower the whole second lower module 102, then the cutting sheet metal clamp 32 with the third sealing strip 63 is placed on the corresponding positioning column 114 on the cutting power mechanism 31, the electric cylinder on the cutting power mechanism 31 stretches out to push the cutting sheet metal clamp 32 to advance until the head end of one side of the third sealing strip 63 is inserted into a die cavity formed by the cooperation of the first lower module 101, the inserting plate mechanism 17 and the sliding block in the sliding block assembly 18, and at the moment, the die completes the cutting step and waits for injection molding;

4) The injection molding press drives the upper die 2 to descend for injection molding and compression molding, and after the injection molding and compression molding are finished, the injection molding press drives the upper die 2 to ascend and lift, and at the moment, the joint angle of the sealing strip product is finished;

5) After the upper die 2 is lifted, demolding is carried out, namely the jacking driving mechanism 103 on the first lower die set 101 stretches out again to lift the whole second lower die set 102, then the oil cylinder on the first demolding power mechanism 51 in the first demolding mechanism drives the first demolding connecting rod 52 on the first demolding power mechanism to retract, and the upper plugboard in the upper plugboard assembly 4131 on the plugboard die connecting clamp 41 and the pressing block 4153 in the pressing block mechanism 415 are driven to upwards turn up and the sliding block 414 to move backwards in the retracting process of the first demolding connecting rod 52;

An oil cylinder on a second demolding power mechanism 53 in the second demolding mechanism drives a demolding second demolding connecting rod 54 on the second demolding power mechanism to extend, and in the extending process of the second demolding connecting rod 54, the second demolding connecting rod 54 drives a plugboard mechanism 17 and a lower plugboard in a lower plugboard assembly 4132 on the plugboard die-connecting clamp 41 to move away from the die cavity along the power direction;

The cylinder of the third demoulding power mechanism 55 in the third demoulding mechanism drives the third demoulding connecting rod 56 on the cylinder to extend, the second slide block 19 is driven to move away from the mould cavity along the power direction in the extending process of the third demoulding connecting rod 56, the slide block in the slide block assembly 18 retreats along the power reverse direction in the process, the mould cavity is in an open state at the moment, finally, the elbow clamp of the sealing strip cutting sheet metal clamp is opened, and the sealing strip product with the joint angle is taken out from the mould.

The foregoing is merely a preferred embodiment of the invention, and it should be noted that modifications could be made by those skilled in the art without departing from the principles of the invention, which modifications would also be considered to be within the scope of the invention.

Claims (10)

1. The European style guide slot integrated corner connecting mold is characterized by comprising:

The lower die (1), the lower die (1) comprises a first lower die set (101) and a second lower die set (102), the second lower die set (102) is arranged above the first lower die set (101), the first lower die set and the second lower die set are connected in a lifting mode, a group of lifting driving mechanisms (103) for lifting the second lower die set (102) are arranged on the outer side of the first lower die set (101), a lower die cavity and a side die cavity are arranged on the first lower die set (101), and the side die cavity is arranged on one side of the lower die cavity;

The upper die (2) is arranged above the lower die (1), and the upper die and the lower die are matched with each other;

The automatic cutting mechanism (3) is arranged on the second lower module (102) and is arranged on one side of the side die cavity;

The automatic soft sealing strip inserting mechanism (4) is arranged on the second lower module (102) and on one side of a lower die cavity, and the automatic soft sealing strip inserting mechanism (4) is matched with the automatic top strip inserting mechanism (3), the second lower module (102) is firstly lifted, the automatic soft sealing strip inserting mechanism (4) inserts the soft sealing strip into a die cavity formed by the matching of the first lower module (101), the inserting plate mechanism (17) and the second sliding block (19) of the sliding block assembly (18), then the second lower module (102) descends, and the top strip automatic inserting mechanism (3) inserts the top strip into the die cavity formed by the matching of the first lower module (101), the inserting plate mechanism (17) and the sliding block in the sliding block assembly (18);

The demolding mechanism (5) is arranged on the lower die (1) and is matched with the automatic strip ejection mechanism (3) and the automatic soft sealing strip insertion mechanism (4).

2. The European style guide slot integrated corner connecting die according to claim 1, wherein the automatic cutting mechanism (3) comprises a cutting power mechanism (31) for driving a cutting sheet metal clamp (32), the cutting power mechanism (31) is connected with the lower die (1), the cutting power mechanism (31) comprises a cutting driving mechanism (311), and the output end of the cutting driving mechanism (311) is connected with a power connection rotary column (115) through a joint (312);

the cutting sheet metal clamp (32), the cutting sheet metal clamp (32) is arranged on the lower die (1) and is movably connected with the lower die, and the output end of the cutting power mechanism (31) can drive the cutting sheet metal clamp (32) to move.

3. The European style guide slot integrated corner connecting mold according to claim 2, wherein the second lower mold set (102) comprises a second lower mold plate, a lower mold extension section (111) is arranged on one side of the second lower mold plate, which is positioned on the automatic cutting mechanism (3), a sliding groove (112) is arranged on the lower mold extension section (111), a sliding block (113) is arranged in the sliding groove (112), the sliding block (113) is connected with a cutting sheet metal clamp (32) through a group of positioning columns (114), and the tail end of the sliding block (113) is connected with a cutting power mechanism (31) through a power connection rotating column (115) and a power connection block (123);

The upper side of the sliding block (113) is provided with a group of limiting press blocks (116), the lower die extension section (111) is positioned on two sides of the sliding groove (112) and is provided with limiting mechanisms (117) relatively, the limiting mechanisms (117) comprise a third limiting block (1171) and a fourth limiting block (1172), the third limiting block (1171) and the fourth limiting block (1172) are arranged on two sides of the sliding groove (112) relatively, the sliding groove (112) adopts a T-shaped radian sliding groove, the sliding block (113) adopts a T-shaped radian to position the sliding block and is matched with the sliding groove (112), the lower die extension section (111) also comprises a mounting platform which is arranged in an inclined mode, a group of guide grooves (12) are arranged on the mounting platform, a group of first limiting blocks (13) are arranged on the outer sides of the guide grooves (12), one end, far away from the cutting power driving mechanism (42), of the mounting platform is provided with a group of second limiting blocks (14), one side, positioned on the lower die (1), of the mounting platform is provided with an inclined top block (15), the lower die (1) is positioned on one side of the mounting platform, the lower die (1) adopts a T-shaped radian sliding groove, the sliding block (113) is positioned on the sliding block, and is matched with the sliding groove (112), the sliding block (16) is positioned on the lower die cavity (18), and two opposite side of the sliding block assemblies (18) are arranged on one side of the lower die assembly are respectively.

4. The European style guide slot integrated corner connecting die as set forth in claim 3, wherein the cutting sheet metal clamp (32) comprises a clamp base plate (321), a strip-mounting sheet metal (322), a group of supporting blocks (323) and a group of elbow clamp positioning components (324), the strip-mounting sheet metal (322) is arranged on the clamp base plate (321), the supporting blocks (323) are arranged on the clamp base plate (321) and are arranged on two sides of the strip-mounting sheet metal (322) relatively, the elbow clamp positioning components (324) are arranged on one side of the clamp base plate (321) through mounting seats, and sealing strip pressing blocks (325) are arranged at the positioning ends of the elbow clamp positioning components (324).

5. The European style guide slot integrated angle connecting mold according to claim 1, wherein the automatic soft sealing strip inserting mechanism (4) comprises a plugboard die connecting clamp (41), wherein the plugboard die connecting clamp (41) is arranged on the lower mold (1) and is movably connected with the lower mold (1);

The cutting power driving mechanism (42) is arranged on the lower die (1) and is arranged at the low-level end of the mounting platform, and the output end of the cutting power driving mechanism (42) is connected with the inserting plate die-connecting clamp (41);

The cutting power driving mechanism (42) comprises a sliding guide mounting plate (421), a first sliding groove is formed in the sliding guide mounting plate (421), a power sliding block (422) is arranged in the first sliding groove, and a group of first limiting pressing blocks (423) are arranged on two sides of the sliding guide mounting plate (421) located on the power sliding block (422);

The first cutting driving mechanism (424), first cutting driving mechanism (424) is connected with lower mould (1) through the mount pad, and its output passes through flange connecting block (4241) and is connected with power slider (422), picture peg die joint anchor clamps (41) are located on the mounting platform to be connected with power slider (422).

6. The European style guide slot integrated corner connecting mold according to claim 5, wherein the insert plate die connecting clamp (41) comprises a first clamp base plate (411), a group of guide blocks (412), an insert plate assembly (413), a sliding block (414) and a pressing block mechanism (415), wherein a lower mold cavity is arranged on the first clamp base plate (411), a sliding rail assembly (416) is arranged on one side of the lower mold cavity, the pressing block mechanism (415) is connected with a sliding plate in the sliding rail assembly (416), and the guide blocks (412) are arranged below the first clamp base plate (411) and are in sliding connection with the guide slots (12);

The plugboard assembly (413) and the sliding block (414) are oppositely arranged on two sides of the lower die cavity, the sliding block (414) is in sliding connection with the sliding rail assembly (416), and the pressing block mechanism (415) is arranged on one side of the sliding block (414);

The plug board assembly (413) comprises an upper plug board assembly (4131) and a lower plug board assembly (4132), the upper plug board assembly (4131) is arranged above the lower plug board assembly (4132), the upper plug board assembly (4131) is hinged with the lower die (1) through a transfer frame, and the lower plug board assembly (4132) is in sliding connection with the second lower die set (102).

7. The European style guide slot integrated corner connecting mold as set forth in claim 6, wherein the pressing block mechanism (415) comprises a turnover base (4151), a turnover connecting block (4152) and a pressing block (4153), wherein the turnover base (4151) is installed on the lower mold (1), one side of the turnover base (4151) is connected with the sliding rail assembly (416) through the connecting block (41511), the turnover connecting block (4152) is arranged on the turnover base (4151), one end of the turnover connecting block is provided with a roller (41521), the other end of the turnover connecting block is connected with the pressing block (4153), and the roller (41521) is located above the inclined top block (15) and moves along the inclined top block (15).

8. The European style guide slot integrated angle connecting mold according to claim 3, wherein the insert plate mechanism (17) is arranged on the lower mold (1) and is movably connected with the lower mold (1), the insert plate mechanism (17) comprises a lower insert plate module (171), a middle insert plate module (172) and an upper insert plate module (173), the lower insert plate module (171), the middle insert plate module (172) and the upper insert plate module (173) are arranged from bottom to top, two sides of the lower insert plate module are movably connected with a sliding rail (104) on the lower mold (1) through a sliding frame (174), and the shapes of the tail ends of the lower insert plate module (171), the middle insert plate module (172) and the upper insert plate module (173) are matched with the shape of the sealing strip;

The upper plugboard module (173) comprises a first upper plugboard (1731), a second upper plugboard (1732) and a third upper plugboard (1733), wherein the first upper plugboard (1731), the second upper plugboard (1732) and the third upper plugboard (1733) are U-shaped, the second upper plugboard (1732) is arranged on the inner side of the first upper plugboard (1731), and the third upper plugboard (1733) is arranged on the inner side of the second upper plugboard (1732).

9. The European style guide slot integrated corner mold according to claim 8, wherein the demolding mechanism (5) comprises a first demolding mechanism, a second demolding mechanism and a third demolding mechanism, the first demolding mechanism comprises a first demolding power mechanism (51), the output end of the first demolding power mechanism (51) is provided with a first demolding connecting rod (52), the first demolding connecting rod (52) is connected with the plugboard assembly (413), the sliding block (414) and the briquetting mechanism (415) and is used for driving the plugboard assembly (413) and the briquetting mechanism (415) to turn up and the sliding block (414) to move;

The second demolding mechanism comprises a second demolding power mechanism (53), a second demolding connecting rod (54) is arranged at the output end of the second demolding power mechanism (53), and the second demolding connecting rod (54) is connected with the plugboard mechanism (17) and the lower plugboard assembly (4132) and used for moving the plugboard mechanism (17) and the lower plugboard assembly (4132);

The third demoulding mechanism comprises a third demoulding power mechanism (55), and a third demoulding connecting rod (56) used for driving a sliding block in the sliding block assembly (18) and the second sliding block (19) to move is arranged at the output end of the third demoulding power mechanism (55).

10. The European style guide slot integrated corner mold according to claim 9, wherein the end of the first demolding connecting rod (52) close to the first demolding power mechanism (51) is provided with a first adapter block (521), the first adapter block (521) is provided with an open slot, the sliding plate in the sliding rail assembly (416) is provided with a connecting rod (4161), and the connecting rod (4161) is arranged in the open slot;

The tail end of the second demolding connecting rod (54) is arranged on a second switching block (541), a driving module (5411) for driving the plug board mechanism (17) is arranged on the second switching block (541), a driving part of the driving module (5411) is arranged in corresponding grooves of a lower plug board module (171) and a middle plug board module (172) of the plug board mechanism (17), a perforation is arranged at the tail end of the second demolding connecting rod (54), a third switching block (5412) is arranged in the perforation, the other end of the third switching block (5412) is connected with a power rod hook (5413) for driving the plug board assembly (413) to move, and the lower part of the plug board assembly (413) is connected with the power rod hook (5413) through a connecting plug rod (4313);

The middle plug board module (172) is provided with a group of fixing seats, the fixing seats are provided with a group of positioning bolts (1721), when the middle plug board module is demoulded, the second demoulding connecting rod (54) drives the second switching block (541) to drive the driving part of the driving module (5411) to move forwards, and as the second switching block (541) and the third switching block (5412) are connected with the second demoulding connecting rod (54), when the second demoulding connecting rod (54) drives the second switching block (541) to drive the driving part of the driving module (5411) to move, the lower plug board in the plug board mechanism (17) and the lower plug board assembly (4132) is driven to move away from the die cavity along the power direction;

the third demolding connecting rod (56) comprises a third demolding connecting rod main rod and a third demolding connecting rod branch rod, the third demolding connecting rod branch rod is arranged on one side of the third demolding connecting rod main rod, a connecting rod (561) is arranged between the third demolding connecting rod main rod and the third demolding connecting rod branch rod, two ends of the connecting rod (561) are respectively provided with waist holes, the third demolding connecting rod main rod and the third demolding connecting rod branch rod are connected with corresponding waist holes through connecting shafts, a sliding plate in the sliding block assembly (18) and the corresponding connecting shafts are arranged in the waist holes at one end of the connecting rod (561), the second sliding block (19) is arranged at the tail end of the third demolding connecting rod main rod, the third demolding power mechanism (55) drives the third demolding connecting rod (56) to stretch out, the second sliding block (19) is driven to move away from a die cavity along the power direction in the stretching process of the third demolding connecting rod main rod and the third demolding connecting rod branch rod, meanwhile, the sliding plate in the process drives the sliding block assembly (18) to retreat in the waist holes, and accordingly the die cavity is in an open state.