CN119159757B

CN119159757B - Worm injection mold in automatic control system for opening and closing metal tube of automobile back tail door

Info

Publication number: CN119159757B
Application number: CN202411649601.5A
Authority: CN
Inventors: 陈建成; 廖龙军
Original assignee: Tianjin Yuangu Technology Co ltd
Current assignee: Tianjin Yuangu Technology Co ltd
Priority date: 2024-11-19
Filing date: 2024-11-19
Publication date: 2025-02-18
Anticipated expiration: 2044-11-19
Also published as: CN119159757A

Abstract

The invention relates to an internal worm injection mold of an automatic control system for opening and closing a metal pipe of an automobile back door, which comprises a movable mold and a fixed mold, wherein the top of the movable mold is provided with a movable mold seat and is fixedly connected to a movable mold plate of injection molding equipment through the movable mold seat, the bottom of the fixed mold is provided with a fixed mold seat and is fixedly connected to a fixed mold plate of the injection molding machine through the fixed mold seat. The invention can mold the inner worm of four metal pipes at one time, has high molding efficiency, simple and convenient metal pipe loading and unloading operation, time and labor saving, adjustable positions of the metal pipes and the screw tooth mold cores, ensures that the end parts are opposite to each other, and has good molding quality.

Description

Worm injection mold in automatic control system for opening and closing metal tube of automobile back tail door

Technical Field

The invention relates to the technical field of injection molds, in particular to an internal worm injection mold of an automatic control system for opening and closing a metal pipe of an automobile back door.

Background

The automatic control system for opening and closing the metal tube of the tail door of the automobile is integrated at the tail part of the automobile and is used for automatically controlling the opening and closing of the tail door. The components such as the metal tube, the inner worm and the like in the system are key mechanical components for realizing the automatic opening and closing function of the tail gate. At present, in order to strengthen the structural stability and the durability of an automatic control system for opening and closing a metal pipe of an automobile tail door, an inner worm is injection molded at the end part of the metal pipe, and the combination of plastics and metal enhances the rigidity and the shock resistance of the whole system, reduces the requirement for subsequent assembly and simplifies the production flow.

When moulding plastics, the injection mold who adopts at present, the tubular metal resonator loading and unloading is wasted time and energy relatively, uses inconveniently, simultaneously, because tubular metal resonator production tolerance, every tubular metal resonator can not guarantee that length is unanimous completely, and the position control precision of screw tooth mold core is general, and when moulding plastics, tubular metal resonator tip has avoided not overflowing the gluey phenomenon, still needs follow-up processing, and shaping quality is general, and production efficiency is low.

Disclosure of Invention

The invention aims to solve the defects in the prior art and provides an internal worm injection mold of an automatic control system for opening and closing a metal pipe of an automobile back door.

The invention aims at achieving the purposes, and adopts the following technical scheme that the internal worm injection mold of the automatic control system for opening and closing the metal pipe of the automobile back door comprises a movable mold and a fixed mold, wherein the top of the movable mold is provided with a movable mold seat and is fixedly connected to a movable mold plate of injection molding equipment through the movable mold seat;

The metal tube loading and unloading mechanism comprises a pair of through holes, loading and unloading seats are rotatably connected in the through holes through rotating shafts, first power mechanisms for driving the corresponding loading and unloading seats to rotate are respectively arranged on the front side wall and the rear side wall of the fixed die, first fixing blocks are arranged on the front side and the rear side of the top of the loading and unloading seat close to one end of the metal tube adjusting mechanism, first pushing blocks are slidably arranged between the opposite sides and the middle of one end of the top of the loading and unloading seat far away from the metal tube adjusting mechanism, second fixing blocks are respectively arranged on the front side and the rear side of the top of the loading and unloading seat far away from the metal tube adjusting mechanism, second pushing blocks are slidably arranged between the opposite sides of the two adjacent second fixing blocks, an inner sleeve rod penetrates through the second pushing blocks, a clamping block is arranged at one end of the inner sleeve rod, a clamping groove corresponding to the clamping block is arranged on the first pushing block, the clamping block is clamped on the clamping groove, a first spring is sleeved on the inner sleeve rod, the first spring is positioned between the first clamping sleeve and the second pushing block, one end of the second pushing block far away from the first pushing block is provided with a positioning lug, the metal tube is positioned on the positioning lug through a notch at the end, the top of the second pushing block is fixedly provided with a limiting block through a bolt;

The metal tube adjusting mechanism comprises a pair of first oil cylinders, the first oil cylinders are fixed at one end, close to the metal tube loading and unloading mechanism, of the top of the fixed die, the end parts of piston rods of the first oil cylinders are fixedly connected with third push blocks, the front side, the rear side and the middle of the top of the fixed die are fixedly connected with third fixed blocks, the front side, the rear side and the bottom of the third push blocks are fixedly connected with fourth push blocks, the third push blocks and the fourth push blocks slide along the opposite surfaces of the two adjacent third fixed blocks, push grooves corresponding to the fourth push blocks are formed in the front side wall and the rear side wall of the loading and unloading seat, and the fourth push blocks are slidably inserted into the push grooves;

The screw die core inlet and outlet mechanism comprises two groups of first fixed boxes, second fixed boxes and third fixed boxes which are arranged on the front side and the rear side of the top of the fixed die, the first fixed boxes, the second fixed boxes and the third fixed boxes are sequentially connected from left to right, two internal thread sleeves are slidably arranged in the first fixed boxes, one side, close to the second fixed boxes, of the third fixed boxes is provided with a first gear hole and two second gear holes communicated with the first gear hole, the first gear hole is rotationally connected with a first gear, a second gear meshed with the first gear is arranged in the second gear hole, a threaded rod in threaded connection with the internal thread sleeve is fixedly connected to one end, close to the second fixed boxes, of an axle center rod of the second gear, of the other end is sleeved with a positioning sleeve, the positioning sleeve is fixedly arranged in the third fixed boxes in a penetrating manner, the screw die core penetrates into a metal pipe, one end of the metal pipe is in butt joint with the internal sleeve, one end, close to the screw die core, of the metal pipe is in butt joint with the positioning sleeve, and a second power mechanism for driving the first gear to rotate is arranged on the fixed die;

The metal tube positioning mechanism comprises a pair of positioning seats, wherein the two positioning seats are arranged on the front side and the rear side of the top of the fixed die and correspond to the loading and unloading seats one by one, the top of the positioning seat is provided with two first positioning grooves corresponding to the metal tube, the metal tube is arranged in the first positioning grooves, one end, close to the third fixed box, of the top of the positioning seat is provided with two second positioning grooves matched with the positioning sleeve, and the end part of the positioning sleeve is abutted in the second positioning grooves;

The screw die core adjusting mechanism comprises two adjusting seats arranged at the top of the fixed die, the adjusting seats are tightly attached to the first fixed box, two first grooves corresponding to the threaded rods are formed in the adjusting seats, wedge-shaped adjusting grooves are formed in the front side and the rear side of each first groove, wedge-shaped adjusting blocks are inserted in the adjusting grooves in a sliding mode up and down mode, adjusting bolts are connected to the adjusting blocks in a threaded mode, the adjusting bolts are connected to the adjusting grooves in a threaded mode, and the adjusting blocks are in contact with the inner threaded sleeves;

the movable mould is driven by the movable mould plate to be matched with the fixed mould, the metal pipe is compressed by the metal pipe compressing mechanism, and the gaps among the positioning sleeve, the screw tooth mould core, the metal pipe and the inner sleeve rod are inner worm cavities to be injection molded, and the glue injecting mechanism is connected with the inner worm cavities.

Specifically, the first power mechanism comprises second oil cylinders which are respectively fixed on the front side wall and the rear side wall of one end of the fixed die, which is close to the metal tube adjusting mechanism, the end part of a piston rod of each second oil cylinder is fixedly connected with a connecting block, a first rack is fixedly connected on the connecting block, the front side wall and the rear side wall of the fixed die are provided with sliding grooves, rack sliding seats corresponding to the first rack are fixedly connected in the sliding grooves, the first rack is slidably arranged in the rack sliding seats, a groove corresponding to the rack sliding seats is formed in the top of the fixed die, the groove is communicated with the sliding grooves, and one end, close to the first rack, of a rotating shaft on the loading and unloading seat extends into the groove and is fixedly connected with a third gear meshed with the first rack.

In particular, the second power mechanism comprises a third oil cylinder fixed on the front side of the fixed die, a movable plate is fixedly connected to the end part of a piston rod of the third oil cylinder, a rack connecting plate is fixedly connected to the end part of the movable plate, the rack connecting plate is slidably arranged in the fixed die, two second racks which are in one-to-one correspondence with the second fixed boxes are fixedly connected to the front side and the rear side of the top of the rack connecting plate, the second racks are positioned at the bottom in the second fixed boxes, an opening is formed in the bottom of the second fixed boxes and positioned at the bottom in the second fixed boxes, a fourth gear penetrating into the second fixed boxes is fixedly arranged on one side of the first gear close to the second fixed boxes, and the fourth gear is meshed with the corresponding second racks.

In particular, the limit rods are clamped on the front side and the rear side of the internal thread sleeve, and the limit rods on the internal thread sleeve slide along the upper inner wall and the lower inner wall of the first fixing box.

In particular, the metal tube compressing mechanism comprises a plurality of compressing seats corresponding to the metal tube, the bottom openings of the compressing seats are arranged and fixed at the bottom of the movable mould through bolts, compressing blocks are arranged in the compressing seats in a vertical sliding mode, a pair of second springs are arranged at the tops of the compressing blocks, the tops of the second springs are connected in the movable mould, arc-shaped grooves are formed in the compressing seats and the bottoms of the compressing blocks, and the metal tube is compressed and fixed through the arc-shaped grooves in the bottoms of the compressing blocks.

Specifically, the glue injection mechanism comprises a glue inlet main cup and a glue inlet sub-cup, wherein the glue inlet main cup and the glue inlet sub-cup are respectively arranged on a movable die holder and a movable die, each glue inlet sub-cup is positioned right above a part to be poured of each metal pipe, the glue inlet main cup and the glue inlet sub-cup are connected through a shunt pipe, a glue injection head is arranged at the bottom of the glue inlet sub-cup, a cover box corresponding to a positioning seat is arranged in the movable die, the cover box is inserted on the positioning seat, a third positioning groove corresponding to a second positioning groove is arranged at the bottom of the cover box, the upper part of the positioning sleeve is abutted in the third positioning groove, a glue injection seat corresponding to a glue injection point position is arranged at the bottom of the cover box, the glue injection head penetrates into the cover box and is arranged on the glue injection seat, and a glue outlet of the glue injection head is abutted with the glue injection point of the metal pipe.

Particularly, a plurality of guide sleeves are embedded in the edge of the top of the fixed die, a plurality of guide rods corresponding to the guide sleeves are arranged on the movable die, and the guide rods are inserted into the guide sleeves.

In particular, cooling water pipes are paved in the movable mould, the fixed mould, the cover box and the positioning seat, and are connected with external water cooling equipment.

The invention has the advantages that the metal pipe assembling and disassembling mechanism is arranged, so that the metal pipe assembling and disassembling operation is simple and convenient, the time and labor are saved, the assembling and disassembling efficiency is high, four internal worms can be molded at one time, the production efficiency is high, the metal pipe adjusting mechanism, the screw die core inlet and outlet mechanism and the screw die core adjusting mechanism are arranged, the screw die core is convenient to inlet and outlet, the positions of the metal pipe and the screw die core can be further adjusted, the ends of the metal pipe and the screw die core can be kept flush, the glue overflow phenomenon is effectively avoided, the internal worm molding quality is good, the metal pipe can be further fixed after the metal pipe is assembled by arranging the metal pipe compressing mechanism, the movement is avoided, and the whole injection molding process of the invention can basically realize automation, and has good molding quality, convenient use and high efficiency.

Drawings

FIG. 1 is a schematic diagram of the connection of an injection mold with a movable mold plate and a fixed mold plate of an injection molding machine;

FIG. 2 is a schematic view of an injection mold according to the present invention;

FIG. 3 is a front view of an injection mold of the present invention;

FIG. 4 is a schematic diagram of a stationary mold structure of the present invention;

FIG. 5 is an enlarged schematic view of FIG. 4 at A;

FIG. 6 is an enlarged schematic view of FIG. 4 at B;

FIG. 7 is a top view of the structure shown in FIG. 4;

FIG. 8 is a cross-sectional view of C-C of FIG. 7;

FIG. 9 is a top view of an injection mold of the present invention;

FIG. 10 is a sectional view D-D of FIG. 9;

FIG. 11 is a cross-sectional view E-E of FIG. 9;

FIG. 12 is an enlarged schematic view of FIG. 10 at F;

FIG. 13 is a schematic diagram of a second power architecture of the present invention;

FIG. 14 is an enlarged schematic view of FIG. 13 at G;

FIG. 15 is an enlarged schematic view of portion H of FIG. 13;

FIG. 16 is a schematic view of a second positioning slot according to the present invention;

FIG. 17 is an enlarged schematic view of the portion I of FIG. 16;

FIG. 18 is an enlarged schematic view of the portion K of FIG. 16;

In the figure, a movable mould is 1;

11-glue injection mechanism, 1101-glue feeding main cup, 1102-glue feeding sub cup, 1103-glue injection head, 1104-cover box, 1105-third positioning groove and 1106-glue injection seat;

12-metal tube compressing mechanism, 1201-compressing seat, 1202-compressing block, 1203-second spring, 1204-arc groove;

2-fixing the mold;

21-screw die core adjusting mechanism, 2101-adjusting seat, 2102-first groove, 2103-adjusting groove and 2104-adjusting block;

22-screw die core in-out mechanism, 2201-first fixed box, 2202-second fixed box, 2203-third fixed box, 2204-internal thread sleeve, 2205-first gear hole, 2206-second gear hole, 2207-first gear, 2208-second gear, 2209-threaded rod, 2210-positioning sleeve, 2211-screw die core, 2212-third cylinder, 2213-movable plate, 2214-rack connecting plate, 2215-second rack, 2216-fourth gear and 2217-limit rod;

23-metal tube positioning mechanism, 2301-positioning seat, 2302-first positioning groove and 2303-second positioning groove;

24-metal tube assembling and disassembling mechanism, 2401-through hole, 2402-assembling and disassembling seat, 2403-first fixed block, 2404-first pushing block, 2405-second fixed block, 2406-second pushing block, 2407-inner sleeve rod, 2408-clamping block, 2409-clamping groove, 2410-first spring, 2411-positioning lug, 2412-limiting block, 2413-second oil cylinder, 2414-connecting block, 2415-first rack, 2416-sliding groove, 2417-rack sliding seat, 2418-slot and 2419-third gear;

25-metal tube adjusting mechanism, 2501-first oil cylinder, 2502-third pushing block, 2503-third fixing block, 2504-fourth pushing block and 2505-pushing groove;

3-fixed die, 4-movable die plate, 5-fixed die holder, 6-fixed die plate, 7-metal tube and 8-guide sleeve;

The embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

Detailed Description

The invention is further illustrated by the following examples:

As shown in fig. 1-18, an internal worm injection mold of an automatic control system for opening and closing a metal pipe of an automobile back door comprises a movable mold 1 and a fixed mold 2, wherein the top of the movable mold 1 is provided with a movable mold base 3 and is fixedly connected to a movable mold plate 4 of injection molding equipment through the movable mold base 3, the bottom of the fixed mold 2 is provided with a fixed mold base 5 and is fixedly connected to a fixed mold plate 6 of the injection molding machine through the fixed mold base 5, and the internal worm injection mold is characterized in that a screw mold core adjusting mechanism 21, a screw mold core inlet and outlet mechanism 22, a metal pipe positioning mechanism 23, a metal pipe loading and unloading mechanism 24 and a metal pipe adjusting mechanism 25 are sequentially arranged on the fixed mold 2 from left to right, the movable mold 1 is positioned above the screw mold core adjusting mechanism 21, the screw mold core inlet and outlet mechanism 22 and the metal pipe positioning mechanism 23, and a glue injecting mechanism 11 and a metal pipe compressing mechanism 12 are respectively arranged on the movable mold 1.

As shown in fig. 4 and 5, the metal tube assembling and disassembling mechanism 24 includes a pair of through holes 2401, assembling and disassembling seats 2402 are rotatably connected in the through holes 2401 through a rotating shaft, first power mechanisms for driving the corresponding assembling and disassembling seats 2402 to rotate are respectively arranged on the front side wall and the rear side wall of the fixed mold 2, first fixing blocks 2403 are arranged on the front side and the rear side of the top of the assembling and disassembling seats 2402 close to one end of the metal tube adjusting mechanism 25, first pushing blocks 2404 are slidably arranged between the opposite sides of the top of the assembling and disassembling seats 2402 far from one end of the metal tube adjusting mechanism 25, second fixing blocks 2405 are respectively arranged on the front side and the rear side and the middle of one end of the adjacent second fixing blocks 2405, second pushing blocks 2406 are slidably arranged between the opposite sides of the adjacent second fixing blocks 2405, inner sleeve rods 2407 penetrate through inner sleeve rods 2407, clamping blocks 2408 are arranged at one ends of the inner sleeve rods 2407, clamping grooves 2409 corresponding to the clamping blocks 2408 are arranged on the first pushing blocks 2404, first springs 2410 are sleeved on the inner sleeve 2407, the first springs 2410 are positioned between the first pushing blocks 2414 and the second pushing blocks 2416, the ends of the second pushing blocks 2416 are far from one end of the first pushing blocks 2416 are far from one end of the metal tube 2416, and the end of the inner positioning blocks 2401 are far from the bottom of the metal limiting blocks 2401 are positioned in the positioning bolts 2412;

As shown in fig. 3 and 4, the first power mechanism comprises a second oil cylinder 2413 respectively fixed on the front and rear side walls of one end of the fixed mold 2 close to the metal tube adjusting mechanism 25, a connecting block 2414 is fixedly connected to the end part of a piston rod of the second oil cylinder 2413, a first rack 2415 is fixedly connected to the connecting block 2414, a sliding groove 2416 is arranged on the front and rear side walls of the fixed mold 2, a rack sliding seat 2417 corresponding to the first rack 2415 is fixedly connected in the sliding groove 2416, the first rack 2415 is slidably arranged in the rack sliding seat 2417, a slot 2418 corresponding to the rack sliding seat 2417 is arranged at the top of the fixed mold 2, the slot 2418 is communicated with the sliding groove 2416, and one end, adjacent to the first rack 2415, of a rotating shaft on the loading seat 2402 extends into the slot 2418 and is fixedly connected with a third gear 2419 meshed with the first rack 2415;

Specifically, when the metal tube 7 is assembled and disassembled, the second oil cylinder 2413 drives the first rack 2415 to move, and then drives the third gear 2419 to rotate, at this time, the assembling and disassembling seat 2402 rotates, and each time the third gear 2419 rotates 90 degrees, when the assembling and disassembling seat 2402 rotates to be vertical, the metal tube 7 is sleeved on the inner sleeve rod 2407 and is sleeved on the positioning convex block 2411 to be positioned through the notch, then the assembling and disassembling seat 2402 rotates to be horizontal, the metal tube 7 can be placed on the fixed die 2, the notch is spliced with the positioning convex block 2411, the consistency of glue injection points can be ensured, the assembling and disassembling operation of the metal tube 7 is convenient, and the use is convenient.

As shown in fig. 4, the metal tube adjusting mechanism 25 includes a pair of first cylinders 2501, the first cylinders 2501 are fixed at the top of the fixed mold 2 near one end of the metal tube loading and unloading mechanism 24, the end of the piston rod of each first cylinder 2501 is fixedly connected with a third push block 2502, the front and back sides and the middle of the top of the fixed mold 2 are fixedly connected with a third fixed block 2503, the front and back sides of the bottom of the third push block 2502 are fixedly connected with a fourth push block 2504, the third push block 2502 and the fourth push block 2504 slide along opposite surfaces of two adjacent third fixed blocks 2503, the front and back side walls of the loading and unloading seat 2402 are provided with push grooves 2505 corresponding to the fourth push blocks 2504, and the fourth push blocks 2504 slide into the push grooves 2505;

Specifically, after the metal tube 7 is installed, because the length of the metal tube 7 is still within a tolerance range and there is a certain difference, in order to ensure that the front end of the metal tube 7 abuts against the positioning sleeve 2210, the first oil cylinder 2501 pushes the third push block 2502 to move, the third push block 2502 drives the fourth push block 2504 to move in the push groove 2505, and further pushes the first push block 2404 to move, the first push block 2404 applies pressure to the first spring 2410, and the first spring 2410 pushes the second push block 2406, and further drives the metal tube 7 and the inner sleeve 2407 to move forward until the front end of the metal tube 7 abuts against the positioning sleeve 2210.

As shown in fig. 4, fig. 7, fig. 8, fig. 9, fig. 11, fig. 12, the screw die core access mechanism 22 comprises two groups of first 2201, second 2202 and third 2203 fixed boxes arranged on the front and back sides of the top of the fixed die 2, the first 2201, second 2202 and third 2203 fixed boxes are sequentially connected from left to right, two internal thread sleeves 2204 are slidably arranged in the first 2201 fixed boxes, one side of the third 2203 adjacent to the second 2202 is provided with a first gear hole 2205 and two second gear holes 2206 communicated with the first gear hole 2205, the first gear hole 2205 is in rotary connection with a first gear 2207, the second gear 2206 is internally provided with a second gear 2208 meshed with the first gear 2207, the axle center rod of the second gear 2208 is close to one end of the second 2202 and fixedly connected with a threaded rod 2209 in threaded connection with the internal thread sleeve 2204, the other end is sleeved with a positioning sleeve 2210, the end is fixedly provided with a screw die core 2211, the positioning sleeve 2210 is fixedly connected with a metal thread sleeve 2207 in rotary connection with the first gear core 2207, and the first gear core is in contact with the first gear core 2207, and the first gear core is in contact with the first power sleeve 2207, and the first gear core is in contact with the first gear core 2207;

As shown in fig. 11, 13 and 14, the second power mechanism comprises a third oil cylinder 2212 fixed on the front side of a fixed die 2, a moving plate 2213 is fixedly connected to the end part of a piston rod of the third oil cylinder 2212, a rack connecting plate 2214 is fixedly connected to the end part of the moving plate 2213, the rack connecting plate 2214 is slidably arranged in the fixed die 2, two second racks 2215 which are in one-to-one correspondence with the second fixed box 2202 are fixedly connected to the front side and the rear side of the top of the rack connecting plate 2214, the second racks 2215 are positioned at the inner bottom of the second fixed box 2202, the bottom of the second fixed box 2202 is provided with an opening, a fourth gear 2216 penetrating into the second fixed box 2202 is fixedly arranged on one side of the first gear 2207 close to the second fixed box 2202, the fourth gear 2216 is meshed with the corresponding second racks 2215, limiting rods 2217 are clamped on the front side and the rear side of the internal thread sleeve 2204, and the limiting rods 2217 on the internal thread sleeve 2204 slide along the upper inner wall and lower walls of the first fixed box 2201;

Specifically, after the metal tube 7 is assembled, the third cylinder 2212 pushes the moving plate 2213 to move, so as to drive the two second racks 2215 on the rack connecting plate 2214 to move, at this time, the fourth gear 2216 rotates, the fourth gear 2216 drives the first gear 2207 to rotate, the first gear 2207 drives the second gear 2208 to rotate, the second gear 2208 drives the threaded rod 2219 to rotate, so as to complete the entry and exit of the screw die core 2211, when the glue is injected, the screw die core 2211 is screwed into the metal tube 7, and after the glue injection is completed, the screw die core 2211 is controlled to be screwed out of the metal tube 7 to be retracted into the positioning sleeve 2210.

As shown in fig. 17, the metal tube positioning mechanism 23 includes a pair of positioning seats 2301, two positioning seats 2301 are disposed on front and rear sides of the top of the fixed mold 2, the positioning seats 2301 are in one-to-one correspondence with the mounting and dismounting seats 2402, two first positioning grooves 2302 corresponding to the metal tubes 7 are disposed on the top of the positioning seats 2301, the metal tubes 7 are disposed in the first positioning grooves 2302, two second positioning grooves 2303 matching with the positioning sleeves 2210 are disposed on one end of the top of the positioning seats 2301 near the third fixed box 2203, and the end portions of the positioning sleeves 2210 are abutted in the second positioning grooves 2303;

as shown in fig. 18, the screw die core adjusting mechanism 21 includes two adjusting seats 2101 disposed at the top of the fixed die 2, the adjusting seats 2101 are tightly attached to the first fixed box 2201, two first grooves 2102 corresponding to the threaded rods 2209 are disposed on the adjusting seats 2101, wedge-shaped adjusting grooves 2103 are disposed on front and rear sides of the first grooves 2102, wedge-shaped adjusting blocks 2104 are inserted in the adjusting grooves 2103 in a sliding manner, adjusting bolts are connected to the adjusting blocks 2104 in a threaded manner, the adjusting bolts are connected to the adjusting grooves 2103 in a threaded manner, and the adjusting blocks 2104 are in contact with the inner threaded sleeves 2204;

Specifically, during injecting glue, after the screw thread mold core 2211 is screwed into the metal tube 7, in order to ensure that the front end of the injection molded internal worm is flush with the front end of the metal tube 7, the adjusting block 2104 moves in the adjusting groove 2103 by rotating the adjusting bolt, so as to push the internal thread sleeve 2204 to move, the internal thread sleeve 2204 drives the threaded rod 2209, the second gear 2208 and the screw thread mold core 2211 to move until the axial rod end of the second gear 2208 is abutted with the end part of the metal tube 7, at this time, the screw thread mold core 2211 fixedly connected with the axial rod end is all positioned in the metal tube 7, and the end part is flush with the end part of the metal tube 7, so that the molding quality is ensured.

The movable mould 1 is driven by the movable mould plate 4 to be clamped with the fixed mould 2, the metal pipe 7 is compressed by the metal pipe compressing mechanism 12, and gaps among the positioning sleeve 2210, the screw mould core 2211, the metal pipe 7 and the inner sleeve 2407 are inner worm cavities to be injection molded, and the glue injecting mechanism 11 is connected with the inner worm cavities.

As shown in fig. 15, the metal tube compressing mechanism 12 includes a plurality of compressing seats 1201 corresponding to the metal tube 7, the bottom openings of the compressing seats 1201 are arranged and fixed at the bottom of the movable mold 1 by bolts, compressing blocks 1202 are arranged in the compressing seats 1201 in a sliding manner up and down, a pair of second springs 1203 are arranged at the top of the compressing blocks 1202, the tops of the second springs 1203 are connected in the movable mold 1, arc-shaped grooves 1204 are arranged at the bottoms of the compressing seats 1201 and the compressing blocks 1202, and the metal tube 7 is compressed and fixed by the arc-shaped grooves 1204 at the bottom of the compressing blocks 1202;

Specifically, during mold closing, the pressing seat 1201 is placed on the top of the fixed mold 2, and the pressing block 1202 presses the metal tube 7 under the action of the second spring 1203.

As shown in fig. 10, the glue injection mechanism 11 includes a main glue feeding cup 1101 and a sub glue feeding cup 1102, the main glue feeding cup 1101 and the sub glue feeding cup 1102 are respectively disposed on the movable mold base 3 and the movable mold 1, each sub glue feeding cup 1102 is located right above a to-be-poured portion of each metal tube 7, the main glue feeding cup 1101 and the sub glue feeding cup 1102 are connected through a shunt tube, a glue injection head 1103 is disposed at the bottom of the sub glue feeding cup 1102, a cover box 1104 corresponding to the positioning seat 2301 is disposed in the movable mold 1, the cover box 1104 is inserted on the positioning seat 2301, a third positioning groove 1105 corresponding to the second positioning groove 2303 is disposed at the bottom of the cover box 1104, the upper portion of the positioning sleeve 2210 is abutted in the third positioning groove 1105, a glue injection seat 1106 corresponding to the glue injection point is disposed at the bottom of the cover box 1104, the glue injection head 1103 is inserted into the cover box 1104 and placed on the glue injection seat 1106, and the glue outlet of the glue injection head 1103 is abutted to the glue injection point of the metal tube 7.

A plurality of guide sleeves 8 are embedded in the edge of the top of the fixed die 2, a plurality of guide rods corresponding to the guide sleeves 8 are arranged on the movable die 1 and inserted into the guide sleeves 8, cooling water pipes are paved in the movable die 1, the fixed die 2, the cover box 1104 and the positioning seat 2301, and the cooling water pipes are connected with external water cooling equipment.

When the invention works, the metal tube 7 is installed through the metal tube loading and unloading mechanism 24, the end position of the metal tube 7 is regulated through the metal tube regulating mechanism 25 after the installation, the metal tube 7 is abutted against the positioning sleeve 2210, then the screw die core 2211 is driven to be screwed into the metal tube 7 through the screw die core inlet and outlet mechanism 22, then the end position of the screw die core 2211 is regulated through the screw die core regulating mechanism 21, so that the metal tube is flush with the front end of the metal tube 7, the movable die 1 is clamped, the metal tube 7 is further compressed through the metal tube compressing mechanism 12, the glue is injected through the glue injecting mechanism 11, the internal worm injection molding of the four metal tubes 7 can be completed once, the cooling water pipe arranged inside is used for cooling after the glue injection is completed, the die is opened after the molding, the screw die core 2211 is screwed out of the metal tube 7, the metal tube regulating mechanism 25 is retracted to the initial position, the loading and unloading seat 2402 is rotated to be vertical under the first power mechanism, the metal tube 7 is directly taken out, then a new metal tube 7 is replaced, and the steps are repeated.

The invention can mold the inner worms of four metal pipes 7 at one time, has high molding efficiency, simple and convenient assembly and disassembly operation of the metal pipes 7, time and labor saving, adjustable positions of the metal pipes 7 and the screw tooth mold cores 2211, and good molding quality of the end parts.

In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the device or element being referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present invention.

Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In the description of the present invention, the meaning of "plurality" means at least two, for example, two, three, etc., unless specifically defined otherwise.

In the present invention, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed, mechanically connected, electrically connected, or communicable with each other, directly connected, indirectly connected through an intervening medium, or in communication between two elements or in an interactive relationship between two elements, unless otherwise explicitly specified. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art according to the specific circumstances.

While the invention has been described above by way of example, it will be apparent that the invention is not limited to the above embodiments, but is intended to be within the scope of the invention, as long as various modifications of the method concepts and technical solutions of the invention are adopted, or as long as modifications are directly applicable to other applications without modification.

Claims

1. The utility model provides an automatic control system internal worm injection mold of car back door switching metal tube, including movable mould (1), cover half (2), movable mould (1) top is equipped with movable mould base (3), and pass through movable mould base (3) fixed connection on injection molding equipment's movable mould board (4), cover half (2) bottom is equipped with fixed mould base (5), and pass through fixed mould base (5) fixed connection on injection molding machine's cover half (6), characterized in that, be equipped with screw die core adjustment mechanism (21) on cover half (2) from left to right in proper order, screw die core business turn over mechanism (22), metal tube positioning mechanism (23), metal tube loading and unloading mechanism (24), metal tube adjustment mechanism (25), movable mould (1) are located screw die core adjustment mechanism (21), screw die core business turn over mechanism (22), metal tube positioning mechanism (23) top, be equipped with injecting glue mechanism (11) and metal tube hold-down mechanism (12) on movable mould (1) respectively;

The metal tube loading and unloading mechanism (24) comprises a pair of through holes (2401), loading and unloading seats (2402) are rotatably connected in the through holes (2401) through rotating shafts, first power mechanisms for driving the corresponding loading and unloading seats (2402) to rotate are respectively arranged on the front side wall and the rear side wall of the fixed mold (2), first fixing blocks (2403) are arranged on the front side and the rear side of the top of the loading and unloading seat (2402) close to one end of the metal tube adjusting mechanism (25), first pushing blocks (2404) are slidably arranged between the opposite surfaces of the two first fixing blocks (2403), second fixing blocks (2405) are respectively arranged on the front side and the rear side and the middle of the top of the loading and unloading seat (2402) far away from one end of the metal tube adjusting mechanism (25), a second pushing block (2406) is slidably arranged between opposite surfaces of two adjacent second fixing blocks (2405), an inner sleeve rod (2407) is penetrated in the second pushing block (2406), a clamping block (2408) is arranged at one end of the inner sleeve rod (2407), a clamping groove (2409) corresponding to the clamping block (2408) is arranged on the first pushing block (2404), the clamping block (2408) is clamped on the clamping groove (2409), a first spring (2410) is sleeved on the inner sleeve rod (2407), the first spring (2410) is positioned between the first pushing block (2404) and the second pushing block (2406), a positioning convex block (2411) is arranged at one end, far away from the first pushing block (2404), of the second pushing block (2406) is positioned on the positioning convex block (2411) through a notch clamping sleeve at the end part, a limiting block (2412) is fixed at the top of the second pushing block (2406) through a bolt, and the bottom of one end, far away from the second pushing block (2406), of the limiting block (2412) is clamped into a clamping groove (2409);

the metal tube adjusting mechanism (25) comprises a pair of first oil cylinders (2501), the first oil cylinders (2501) are fixed at the top of the fixed die (2) and close to one end of the metal tube assembling and disassembling mechanism (24), the end parts of piston rods of the first oil cylinders (2501) are fixedly connected with third push blocks (2502), the front side, the rear side and the middle of the top of the fixed die (2) are fixedly connected with third fixed blocks (2503), the front side, the rear side and the bottom of the third push blocks (2502) are fixedly connected with fourth push blocks (2504), the third push blocks (2502) and the fourth push blocks (2504) slide along the opposite surfaces of the adjacent two third fixed blocks (2503), push grooves (2505) corresponding to the fourth push blocks (2504) are formed in the front side wall and the rear side wall of the assembling and disassembling seat (2402), and the fourth push blocks (2504) slide and are inserted into the push grooves (2505);

The screw thread mold core access mechanism (22) comprises two groups of first fixing boxes (2201), second fixing boxes (2202) and third fixing boxes (2203) which are arranged on the front side and the rear side of the top of the fixed mold (2), the first fixing boxes (2201), the second fixing boxes (2202) and the third fixing boxes (2203) are sequentially connected from left to right, two internal thread sleeves (2204) are slidably arranged in the first fixing boxes (2201), one side of the third fixing boxes (2203) close to the second fixing boxes (2202) is provided with a first gear hole (2205) and two second gear holes (2206) communicated with the first gear hole (2205), the first gear hole (2205) is connected with a first gear (2207) in a rotating mode, a second gear (2208) meshed with the first gear (2207) is arranged in the second gear hole (2206), an axle center rod of the second gear (2208) is close to one end of the second fixing boxes (2202) and fixedly connected with a sleeve (2209) in threaded connection with an internal thread sleeve (2204), the other end of the second fixing boxes (2208) is provided with a first gear hole (2207) in a rotating mode, the other end of the second gear box (2208) is provided with a positioning sleeve (2217) which is connected with a metal mold core (2210) in a positioning sleeve (2210) in a penetrating mode, the metal mold core (1) is arranged at one end of the positioning sleeve (2210) is positioned near to the metal mold core (1) and the metal mold core (2210) 1, the fixed die (2) is provided with a second power mechanism for driving the first gear (2207) to rotate;

The metal tube positioning mechanism (23) comprises a pair of positioning seats (2301), wherein the two positioning seats (2301) are arranged on the front side and the rear side of the top of the fixed die (2), the positioning seats (2301) are in one-to-one correspondence with the loading and unloading seats (2402), the top of each positioning seat (2301) is provided with two first positioning grooves (2302) corresponding to the metal tube (7), the metal tube (7) is arranged in each first positioning groove (2302), one end, close to the third fixing box (2203), of the top of each positioning seat (2301) is provided with two second positioning grooves (2303) matched with the positioning sleeve (2210), and the end part of each positioning sleeve (2210) is abutted in each second positioning groove (2303);

The screw die core adjusting mechanism (21) comprises two adjusting seats (2101) arranged at the top of the fixed die (2), the adjusting seats (2101) are tightly attached to the first fixed box (2201), two first grooves (2102) corresponding to threaded rods (2209) are formed in the adjusting seats (2101), wedge-shaped adjusting grooves (2103) are formed in the front side and the rear side of each first groove (2102), wedge-shaped adjusting blocks (2104) are inserted in the adjusting grooves (2103) in a sliding mode, adjusting bolts are connected to the adjusting blocks (2104) in a threaded mode, the adjusting bolts are connected to the adjusting grooves (2103) in a threaded mode, and the adjusting blocks (2104) are in contact with the inner thread sleeves (2204);

the movable die (1) is driven by the movable die plate (4) to be clamped with the fixed die (2), the metal tube (7) is compressed by the metal tube compressing mechanism (12), gaps among the positioning sleeve (2210), the screw die core (2211), the metal tube (7) and the inner sleeve rod (2407) are inner worm cavities to be injection molded, and the glue injecting mechanism (11) is connected with the inner worm cavities.

2. The automatic control system for opening and closing the metal tube of the automobile back door according to claim 1, wherein the first power mechanism comprises second oil cylinders (2413) which are respectively fixed on the front side wall and the rear side wall of the fixed mold (2) close to one end of the metal tube adjusting mechanism (25), connecting blocks (2414) are fixedly connected to the end parts of piston rods of the second oil cylinders (2413), first racks (2415) are fixedly connected to the connecting blocks (2414), sliding grooves (2416) are formed in the front side wall and the rear side wall of the fixed mold (2), rack sliding seats (2417) corresponding to the first racks (2415) are fixedly connected to the sliding grooves (2416), the first racks (2415) are slidingly arranged in the rack sliding seats (2417), grooves (2418) corresponding to the rack sliding seats (2417) are formed in the tops of the fixed mold (2), the grooves (2418) are communicated with the sliding grooves (2416), and a third gear (2419) meshed with the first racks (2415) is fixedly connected to one ends of rotating shafts on the loading and unloading seats (2402) which are adjacent to the first racks (2415).

3. The automatic control system internal worm injection mold for the automobile back door opening and closing metal pipe according to claim 1, wherein the second power mechanism comprises a third oil cylinder (2212) fixed at the front side of the fixed mold (2), a moving plate (2213) is fixedly connected to the end part of a piston rod of the third oil cylinder (2212), a rack connecting plate (2214) is fixedly connected to the end part of the moving plate (2213), the rack connecting plate (2214) is slidably arranged in the fixed mold (2), two second racks (2215) which are in one-to-one correspondence with the second fixed mold (2202) are fixedly connected to the front side and the rear side of the top of the rack connecting plate (2214), the second racks (2215) are located at the inner bottom of the second fixed mold (2202), an opening is formed in the bottom of the second fixed mold (2202), a fourth gear (2216) penetrating into the second fixed mold (2202) is fixedly arranged at one side of the first gear (2207) close to the second fixed mold (2202), and the fourth gear (2216) is meshed with the corresponding second racks (2215).

4. The internal worm injection mold of an automatic control system for opening and closing a metal tube of a back door of an automobile according to claim 1, wherein a limit rod (2217) is clamped at the front side and the rear side of an internal thread sleeve (2204), and the limit rod (2217) on the internal thread sleeve (2204) slides along the upper inner wall and the lower inner wall of a first fixing box (2201).

5. The worm injection mold in the automatic control system for opening and closing the metal tube of the automobile back door according to claim 1, wherein the metal tube pressing mechanism (12) comprises a plurality of pressing seats (1201) corresponding to the metal tube (7), the bottoms of the pressing seats (1201) are opened and fixed at the bottom of the movable mold (1) through bolts, pressing blocks (1202) are arranged in the pressing seats (1201) in a sliding manner, a pair of second springs (1203) are arranged at the tops of the pressing blocks (1202), the tops of the second springs (1203) are connected in the movable mold (1), arc-shaped grooves (1204) are formed in the bottoms of the pressing seats (1201) and the pressing blocks (1202), and the metal tube (7) is pressed and fixed through the arc-shaped grooves (1204) in the bottoms of the pressing blocks (1202).

6. The automatic control system for opening and closing the metal tube of the automobile back door according to claim 1, wherein the glue injection mechanism (11) comprises a glue inlet main cup (1101) and a glue inlet sub-cup (1102), the glue inlet main cup (1101) and the glue inlet sub-cup (1102) are respectively arranged on a movable die holder (3) and the movable die (1), each glue inlet sub-cup (1102) is located right above a to-be-poured part of each metal tube (7), the glue inlet main cup (1101) and the glue inlet sub-cup (1102) are connected through a shunt tube, a glue injection head (1103) is arranged at the bottom of the glue inlet sub-cup (1102), a cover box (1104) corresponding to a positioning seat (2301) is arranged in the movable die (1), the cover box (1104) is inserted on the positioning seat (2301), a third positioning groove (1105) corresponding to the second positioning groove (1103) is arranged at the bottom of the cover box (1104), the upper part of the positioning sleeve (2210) is abutted in the third positioning groove (1104), a glue injection head (1106) corresponding to the glue injection head (1106) is arranged at the bottom of the cover box (1104), and the glue injection head (1106) is abutted to the glue injection head (1106) corresponding to the glue injection head (7) in the glue injection position.

7. The internal worm injection mold of the automatic control system for opening and closing the metal tube of the automobile back door according to claim 1 is characterized in that a plurality of guide sleeves (8) are embedded in the top edge of the fixed mold (2), a plurality of guide rods corresponding to the guide sleeves (8) are arranged on the movable mold (1), and the guide rods are inserted into the guide sleeves (8).

8. The internal worm injection mold of the automatic control system for opening and closing the metal tube of the automobile back door according to claim 6, wherein cooling water pipes are paved in the movable mold (1), the fixed mold (2), the cover box (1104) and the positioning seat (2301), and the cooling water pipes are connected with external water cooling equipment.