CN114571692B - Cast strip equipment production line - Google Patents

Abstract

The utility model belongs to the technical field of packing belt production equipment, and particularly relates to a production line of casting belt equipment. This cast strip equipment production line for twenty packing strips of simultaneous production, including melt filter, booster pump, cooling device and two-way draft gear, still include cast strip mould, melt filter, booster pump, cast strip mould and cooling device all are provided with two sets of, and every group equipment communicates in proper order, and two sets of cast strip moulds are first cast strip mould and second cast strip mould respectively, and the packing strip of first cast strip mould and second cast strip mould production is through cooling device cooling design after, halving the quantity of packing strip and input to two-way draft gear respectively and draft. The production line can simultaneously produce twenty packaging belts with high tensile strength and stable size by arranging the casting belt dies of one out eight belts and one out twelve belts, which is only equivalent to two production lines in the prior art, thereby greatly reducing the equipment cost and the production cost and effectively improving the production efficiency.

Description

Cast strip equipment production line

Technical Field

The utility model belongs to the technical field of packing belt production equipment, and particularly relates to a production line of casting belt equipment.

Background

The plastic strapping band is a uniaxially oriented plastic strapping material having a thickness of 0.5-1.2mm and a width of 10-32mm. According to different materials, the plastic packing belts can be divided into PVC packing belts, PE packing belts, PP packing belts and PET packing belts, wherein the PET packing belts are the most common packing and binding materials.

Chinese patent document CN102490380a discloses a method for producing a packing tape and a complete set of equipment, comprising a powerful extruder, a cooling water tank, a first traction unit, a stretching oven, a second traction unit, an embossing unit, a shaping oven, a shaping water tank, a third traction unit and a tape winder. The strong extruder comprises a transmission part and a forming part, wherein the forming part consists of a screw feed cylinder, a machine head and a mouth die, the forming part adopts a one-out-two die technology, the same gram weights of the primary blanks of the two packing belts are ensured through flow control, and simultaneously, the thickness of the primary blanks of the two packing belts can be respectively adjusted so as to achieve the same size and consistent gram weights of the primary blanks of the packing belts after forming.

The complete equipment for packing belts can only produce two packing belts simultaneously on one production line, and if a large number of packing belts are produced simultaneously, the production line is increased correspondingly, so that the equipment investment cost is high and the economic benefit is low.

Accordingly, the prior art is subject to improvement and development.

Disclosure of Invention

The utility model is broken through in the comprehensive technology of the production line based on the traditional line, twenty packaging strips can be produced simultaneously, and the production efficiency is effectively improved.

For solving above-mentioned technical problem, the application provides a casting belt equipment production line for producing twenty packing strips simultaneously, including melt filter, booster pump, cooling device and two-way drafting device, still including casting belt mould, melt filter, booster pump, casting belt mould and cooling device all are provided with two sets of, and every equipment of group communicates in proper order, and two sets of casting belt mould is first casting belt mould and second casting belt mould respectively, eight packing strips of first casting belt mould production, twelve packing strips of second casting belt mould production, first casting belt mould with behind the packing strip of second casting belt mould production is cooled by cooling device and is finalized the design, halving the quantity of packing strip and input to two-way drafting device respectively and draft.

Further, the casting belt die comprises a first die plate, a second die plate, a forming die plate, a third die plate and a fourth die plate, wherein the forming die plate is provided with a first parting surface and a second parting surface, the first die plate and the second die plate are installed on the first parting surface, the third die plate and the fourth die plate are installed on the second parting surface, the first die plate and/or the third die plate is provided with a feeding die plate, the feeding die plate is provided with a feeding runner, the first parting surface and the second parting surface are respectively provided with a plurality of forming runners, the feeding runners are respectively communicated with the forming runners, the bottom of the casting belt die is provided with a plurality of mouth dies, the mouth dies are communicated with the corresponding forming runners, and the mouth dies are alternately arranged on the first parting surface and the second parting surface.

The molding runner is arranged on the two parting surfaces of the molding template, and the adjacent molding runners and the communicated port dies are alternately arranged, so that the melt is ensured not to be disturbed in shaping and cooling after being extruded from the port dies.

Further, the two molding runners oppositely arranged on the first parting surface and the second parting surface are communicated through an oblique angle runner.

The oblique angle runner is arranged between the forming runner of the first parting surface and the forming runner of the second parting surface to enable the two runners to be communicated with each other, so that only one feeding template can be arranged, the design and the manufacture of the die are simplified, and the cost of the whole die is reduced.

Further, a plurality of sliding grooves are respectively arranged at the lower ends of the second template and the fourth template, and a thickness adjusting device for adjusting the thickness of the die is arranged in each sliding groove.

The thickness of the neck mold is adjusted by the thickness adjusting device, so that the thickness of the packing belt is adjusted.

Further, thickness adjusting device includes fixed plate, axle sleeve, transmission shaft, end cover and slider, the fixed plate pass through the axle sleeve with second template or fourth template are connected, the fixed plate is provided with spacing hole, the transmission shaft is installed spacing downthehole, the one end of transmission shaft is provided with the screw thread section, the other end of transmission shaft is provided with the transmission moment of torsion section, the slider with spout looks adaptation, the slider with the spout slides and is connected, the slider be provided with the screw hole of screw thread section looks adaptation, the screw hole of slider with the screw thread section threaded connection of transmission shaft.

Further, the transmission shaft is sleeved with a dial, and the dial is provided with scale marks and scale values.

Further, the feeding template comprises a first feeding template and a second feeding template, the feeding template is provided with a pulp inlet and a plurality of pulp outlets, and the pulp inlet and the pulp outlets are communicated through a feeding runner.

Further, the molding runner comprises a main runner and a split runner which are communicated, the split runner comprises a split area, a compression area and a molding area from top to bottom, and the molding area is communicated to the die.

Further, the first casting belt mold is provided with eight dies, and the second casting belt mold is provided with twelve dies.

Further, the first and third templates are respectively provided with a flow regulating device, and the flow regulating device is inserted into the molding runner.

From the above, in the process of manufacturing the packing belt, the high-temperature melt flows through the melt filter and then is injected into the feeding template through the booster pump, the feeding runner of the feeding template divides the melt into two or three, and then enters the forming template from the feeding port, the first parting surface and the second parting surface of the forming template are respectively provided with 4 or 6 forming runners, the forming runners on different parting surfaces are communicated through the bevel runners, the 4 or 6 forming runners are divided into 8 or 12 forming areas through the parting runners, finally the melt is extruded from 8 or 12 alternately arranged dies, and then 8 or 12 packing belts can be formed simultaneously after cooling, shaping and drafting. Setting two groups of belt casting molds, forming 8 packing belts simultaneously, forming 12 packing belts simultaneously, equally dividing 20 packing belts, inputting the two divided belts into a two-way drafting device for drafting, and finally obtaining 20 packing belt finished products.

Additional features and advantages of the application will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by practice of the application. The objectives and other advantages of the application will be realized and attained by the structure particularly pointed out in the written description and claims thereof as well as the appended drawings.

Drawings

FIG. 1 is a front view of a belt casting apparatus line of the present application.

Fig. 2 is a top view of a belt casting apparatus line of the present application.

Fig. 3 is a perspective view of a belt casting mold in the first embodiment of the present application.

Fig. 4 is a front view of a belt casting mold in a first embodiment of the present application.

Fig. 5 is a rear view of a belt casting mold in a first embodiment of the present application.

Fig. 6 is a bottom view of the belt casting mold in the first embodiment of the present application.

Fig. 7 is a perspective view of a first template and a second template in a first embodiment of the present application.

Fig. 8 is a front view of a first template and a second template in a first embodiment of the present application.

Fig. 9 is a rear view of a first template and a second template in a first embodiment of the present application.

Fig. 10 is a cross-sectional view taken along line B-B of fig. 9.

Fig. 11 is a perspective view of a thickness adjusting apparatus according to a first embodiment of the present application.

Fig. 12 is a front view of a thickness adjusting apparatus according to the first embodiment of the present application.

Fig. 13 is a cross-sectional view of fig. 12 taken along line C-C.

Fig. 14 is a cross-sectional view of fig. 13 taken along line D-D.

Fig. 15 is a perspective view of a feed die plate in a first embodiment of the present application.

Fig. 16 is a perspective view of a first feed die plate in a first embodiment of the present application.

Fig. 17 is a top view of a first feed die plate in a first embodiment of the present application.

Fig. 18 is a perspective view of a forming die plate in a first embodiment of the present application.

Fig. 19 is a front view of a molding die plate in a first embodiment of the present application.

Fig. 20 is a cross-sectional view taken along line E-E of fig. 19.

Fig. 21 is a cross-sectional view taken along line F-F of fig. 19.

Fig. 22 is a cross-sectional view taken along line A-A of fig. 6.

Fig. 23 is a top view of a first feed die plate in a second embodiment of the present application.

Fig. 24 is a front view of a forming die plate in a second embodiment of the present application.

Description of the reference numerals: 1. a first template; 11. a feed inlet; 12. an annular groove; 13. a flow regulating device threaded hole; 14. guide sleeve; 15. a threaded hole of the feeding template; 16. a first template fixing hole; 2. a second template; 21. a chute; 22. a threaded hole of the thickness adjusting device; 23. a second template fixing hole; 3. forming a template; 3A, a first parting surface; 3B, a second parting surface; 31. forming a runner; 311. a main flow passage; 312. a sub-runner; 3121. a split area; 3122. a compression zone; 3123. a molding zone; 313. a die; 32. bevel runner; 33. avoidance holes; 34. a guide post; 35. a first template threaded hole; 4. a third template; 5. a fourth template; 6. a feeding template; 6A, a third parting surface; 61. a first feed die plate; 611. a slurry inlet; 612. a slurry outlet; 62. a second feed die plate; 7. a flow rate adjusting device; 8. a thickness adjusting device; 81. a fixing plate; 811. a thickness adjusting device fixing hole; 812. a limiting hole; 82. a shaft sleeve; 83. a transmission shaft; 831. a torque transmitting segment; 832. a mating section; 834. a shaft shoulder; 835. a threaded section; 84. an end cap; 85. a slide block; 86. a dial; 91. a melt filter; 92. a booster pump; 921. a motor; 922. a speed reducer; 923. a pump body; 93. a cooling device; 94. a bi-directional drafting device.

Detailed Description

Embodiments of the present utility model are described in detail below, examples of which are illustrated in the accompanying drawings, wherein the same or similar reference numerals refer to the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the drawings are exemplary only for explaining the present utility model and are not to be construed as limiting the present utility model.

In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", 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 utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model. 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 one or more of the described features. In the description of the present utility model, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.

In the description of the present utility model, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically connected, electrically connected or can be communicated with each other; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

In the present utility model, unless expressly stated or limited otherwise, a first feature "above" or "below" a second feature may include both the first and second features being in direct contact, as well as the first and second features not being in direct contact but being in contact with each other through additional features therebetween. Moreover, a first feature being "above," "over" and "on" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is higher in level than the second feature. The first feature being "under", "below" and "beneath" the second feature includes the first feature being directly under and obliquely below the second feature, or simply means that the first feature is less level than the second feature.

The following disclosure provides many different embodiments, or examples, for implementing different features of the utility model. In order to simplify the present disclosure, components and arrangements of specific examples are described below. They are, of course, merely examples and are not intended to limit the utility model. Furthermore, the present utility model may repeat reference numerals and/or letters in the various examples, which are for the purpose of brevity and clarity, and which do not themselves indicate the relationship between the various embodiments and/or arrangements discussed. In addition, the present utility model provides examples of various specific processes and materials, but one of ordinary skill in the art will recognize the application of other processes and/or the use of other materials.

The present application provides a casting belt equipment production line for simultaneously producing twenty packing belts, as shown in fig. 1 and 2, including two melt filters 91, two casting belt molds, two booster pumps 92, two cooling devices 93 and a bi-directional draft device 94, two booster pumps 92 are first booster pump and second booster pump respectively, two casting belt molds are first casting belt mold and second casting belt mold respectively, eight packing belts are produced by first casting belt mold (i.e. the casting belt mold of embodiment 1 below), twelve packing belts are produced by second casting belt mold (i.e. the casting belt mold of embodiment 2 below), the first booster pump and the second booster pump are specifically selected to use the melt booster pump of which the displacement is 800CC and 1000CC according to the actual working condition, the first casting belt mold is connected to the first booster pump through the melt pipe, the second casting belt mold is connected to the second booster pump through the melt pipe, the inlets of the first booster pump and the second booster pump are also communicated with the melt filter for filtering impurities in the melt, so that the quality of the product can be ensured.

The booster pump 92 includes motor 921, speed reducer 922 and pump body 923, the delivery outlet of first booster pump passes through the melt pipe connection to the inlet of first casting belt mould, the delivery outlet of second booster pump passes through the melt pipe connection to the inlet of second casting belt mould, be provided with pressure sensor in the pump body 923 of booster pump 92, pressure sensor can respond to the pressure of fuse-element, convert the pressure value into the signal of telecommunication and feed back to the controller, compare the pressure value of current fuse-element with preset pressure value, surpass the preset value and then reduce motor output, be less than the preset value and then improve motor output, thereby reach closed-loop control, guarantee the invariable fuse-element pressure of casting belt mould and supply. In certain preferred embodiments, the speed of the booster pump 92 is in the range of 0-50 RPM and the melt pressure output by the pump body 923 is in the range of 1-8 MPa.

The cooling device 93 may be air-cooled or water-cooled, and for the PET strapping tape, rapid cooling with water is required to prevent deformation, so a cold water tank is used in this embodiment. One end of the cooling water tank is arranged right below the casting belt die. The cold water tank is provided with a water inlet and a water outlet, and the water inflow of the water inlet is controlled to adjust the water temperature to keep the temperature between 40 and 70 ℃, so that the crystallinity of the formed inside of the packing belt is controlled. The water outlet is arranged on the lifting mechanism, and the height of the water outlet is adjusted through the lifting mechanism, so that the size of the packing belt is accurately controlled. The water level is typically controlled to within 10 cm. A guiding belt steering roller is also arranged in the cold water tank, and the packing belts are respectively guided to the bidirectional drafting device 94 through the steering roller.

The bi-directional drafting device 94 is that the two sides of the machine are provided with drafting rollers, and the specific structure refers to the patent of the utility model of the applicant in 2020 entitled "multi-roller drafting machine for packaging belt production line," with the issued publication number CN213357821U, and the specific structure of the bi-directional drafting device 94 is not described herein.

After eight packing belts produced by the first belt casting mold and twelve packing belts produced by the second belt casting mold are cooled and shaped, the twenty packing belts are divided into ten belts on each side, and the ten belts are respectively input into the drawing rollers on two sides of the two-way drawing device 94 for drawing according to a specified drawing ratio, so that twenty packing belt finished products are finally obtained.

Compared with the production line in the prior art, if twenty packing belts are required to be produced simultaneously by the production line in CN102490380A, the same ten production lines are required to be arranged simultaneously for splicing and installation, a large amount of equipment is required to be purchased, and further equipment cost, maintenance cost and labor cost are increased.

Example 1

Fig. 3 is a perspective view of a belt casting mold according to a first embodiment of the present application, fig. 4 is a front view of the belt casting mold according to the first embodiment of the present application, fig. 5 is a rear view of the belt casting mold according to the first embodiment of the present application, and fig. 6 is a bottom view of the belt casting mold according to the first embodiment of the present application. The casting belt die comprises a first die plate 1, a second die plate 2, a third die plate 4, a fourth die plate 5 and a forming die plate 3, wherein the forming die plate 3 is provided with two parting surfaces which are parallel to each other, namely a first parting surface 3A and a second parting surface 3B, the second die plate 2 is fixed under the first die plate 1, and the fourth die plate 5 is fixed under the third die plate 4.

Fig. 5 is a perspective view of the first and second templates 1 and 2 according to the first embodiment of the present application, fig. 6 is a front view of the first and second templates 1 and 2 according to the first embodiment of the present application, and fig. 7 is a rear view of the first and second templates 1 and 2 according to the first embodiment of the present application. The first die plate 1 and the second die plate 2 are located on the same side of the first parting plane 3A, i.e., the front side of fig. 5, and the third die plate 4 and the fourth die plate 5 are located on the same side of the second parting plane 3B, i.e., the back side of fig. 5. The first template 1, the third template 4 and the forming template 3 are provided with guide mechanisms, and the two templates are accurately combined through the guide mechanisms. Specifically, guide posts 34 are arranged on two sides of the molding template 3, guide sleeves 14 are arranged at positions corresponding to the first template 1 and the third template 4, and the guide posts 34 are matched with the guide sleeves 14 to realize accurate positioning. In addition, the positions of the guide post 34 and guide sleeve 14 may be interchanged.

The second template 2 may be integrally formed with the first template 1, or may be separately formed, as may the third template 4 and the fourth template 5. In the present embodiment, since the parting surface of the first die plate 1 and the entire end surface of the parting surface of the third die plate 4 need to be machined to have a surface roughness of less than Ra 0.2 μm and a unthreaded hole or threaded hole needs to be machined in the end surface, and the second die plate 2 and the fourth die plate 5 need only be surface-treated in the area near the die 313, the first die plate 1 and the second die plate 2, the third die plate 4 and the fourth die plate 5 in the present embodiment are all molded separately for the convenience of machining and surface treatment.

The first template 1 is a plate with a rectangular cross section, a feeding template threaded hole 15 used for being fixed with the feeding template 6 is arranged on the first template 1, eight feeding template threaded holes 15 are arranged in two rows and four columns, two feeding ports 11 are arranged in the center of each eight feeding template threaded holes 15, an annular groove 12 concentric with the feeding ports 11 is formed in one side, far away from the first parting plane 3A, of each feeding port 11 and is used for installing a sealing gasket, the feeding templates 6 are in sealing connection with the first template 1 after being installed, and melt overflow is prevented in the forming process.

The first template 1 is further provided with first template fixing holes 16 for fixing the first template 1 and the forming template 3 to each other, the first template fixing holes 16 are provided with three rows and five columns, twelve in total (not arranged in the middle), and the first template fixing holes 16 are fastened with first template threaded holes 35 formed in the forming template through hexagon socket head cap screws, and it is worth noting that the first template fixing holes 16 are required to be processed into countersunk holes, so that the socket head cap of each screw is prevented from protruding outwards to influence the installation of the feeding template 6.

A second template 2 is fixed below the first template 1. The second template 2 is the strip panel that the cross section is the rectangle, and the upper end of second template 2 is provided with thickness adjusting device screw hole 22 that is used for fixed thickness adjusting device 8, and thickness adjusting device screw hole 22 is provided with two, and the spout 21 that runs through has been seted up to the lower extreme of second template 2, and the degree of depth perpendicular to first die joint 3A or second die joint 3B of spout 21, the bottom surface of spout 21 flushes with the bottom surface of shaping template 3. A slide block 85 in the thickness adjusting device 8 for adjusting the thickness of the die 313 is installed in the slide groove 21.

Fig. 11 is a perspective view of a thickness adjusting apparatus according to a first embodiment of the present application, and fig. 12 is a front view of the thickness adjusting apparatus according to the first embodiment of the present application. The thickness adjusting device 8 includes a fixing plate 81, a shaft sleeve 82, a transmission shaft 83, an end cover 84 and a slider 85, the upper end of the fixing plate 81 is provided with a thickness adjusting device fixing hole 811, and the lower end of the fixing plate 81 is provided with a limiting hole 812 for mounting the transmission shaft 83. The axis of the sleeve 82 is aligned with the axis of the thickness adjusting device fixing hole 811, one end face of the sleeve 82 abuts against the end face of the second die plate 2, and the other end face abuts against the end face of the fixing plate 81, and is fixed to the thickness adjusting device screw hole 22 in the second die plate 2 by a screw. The sleeve 82 serves to reserve the position of the slide 85 moving away from the first parting plane 3A, the length of the sleeve 82 being dependent on the case.

As shown in fig. 13 and 14, the transmission shaft 83 is sequentially provided with a torque transmission section 831, a mating section 832, a shaft shoulder 834 and a thread section 835 along the axis thereof, and the torque transmission section 831 may be a cylinder with square, hexagonal or circular cross section, or may be a structure in which splines, gears or the like can be fixed relative to the transmission shaft 83 and transmit torque to the transmission shaft 83. In this embodiment, the torque transmission section 831 has a square column structure, and the torque transmission section 831 can be clamped by a wrench to drive the transmission shaft 83 to rotate. The matching section 832 is used for sleeving the transmission shaft 83 in the limiting hole 812, positioning the transmission shaft 83, and limiting the radial movement of the transmission shaft 83. In this embodiment, the limiting hole 812 is a stepped hole, the diameter of the end, close to the shaft sleeve 82, of the limiting hole 812 is larger than that of the end, far away from the shaft sleeve 82, of the limiting hole 812, the diameter is larger, the end is smaller, the diameter is smaller, the shaft shoulder 834 is matched with the large end of the limiting hole 812 after the transmission shaft 83 is mounted to the limiting hole 812, in addition, the end cover 84 is mounted on one surface, close to the shaft sleeve 82, of the fixing plate 81, a through hole is formed in the middle of the end cover 84 so that a threaded section 835 of the transmission shaft 83 penetrates through the through hole, countersunk screws are mounted on two sides of the end cover 84 respectively, and the end cover 84 and the fixing plate 81 are fixed relatively, so that axial movement of the transmission shaft 83 is limited. It should be noted that the length of the shoulder 834 should be slightly smaller than the depth of the large end of the limiting hole 812, so as to avoid the shoulder 834 from being clamped and unable to rotate.

There are many ways to limit the axial movement of the transmission shaft 83, for example, a slot may be formed in the limiting hole 812, and the retainer ring may be installed in the slot, which is not limited herein, and this embodiment only provides one way to be easily implemented.

The sliding block 85 is in a shape matched with the sliding groove 21 of the second template 2, and the sliding block 85 and the sliding groove 21 are matched to form a sliding pair, and the sliding block 85 can reciprocate linearly along the depth direction of the sliding groove 21 so as to adjust the thickness of the die 313.

The slide block 85 is provided with a threaded hole, the nominal diameter, the tooth shape and the thread pitch of the threaded hole of the slide block 85 are matched with the thread section 835 of the transmission shaft 83, and the threaded hole of the slide block 85 is in threaded connection with the thread section 835 of the transmission shaft 83. Since the transmission shaft 83 is limited to rotate in the limiting hole 812, after torque is applied to the torque transferring section, the rotation motion of the transmission shaft 83 is converted into the linear motion of the sliding block 85 through the screw transmission, so that the distance from the end surface of the sliding block 85 to the parting surface is adjusted, and the purpose of adjusting the thickness of the die 313 is achieved.

In order to visually check the variation of the thickness adjustment of the die 313, a dial 86 may be sleeved at one end of the matching section 832 of the transmission shaft 83 extending out of the fixing plate 81, the dial 86 is an annular structure with a right triangle cross section, scale marks and scale values are arranged on the conical surface of the dial 86, and correspondingly, a datum line is also arranged on the matching section 832 of the transmission shaft 83. The rotation angle of the transmission shaft 83 is converted into the displacement distance of the sliding block 85 and corresponds to the scale value, so that the thickness of the die 313 can be accurately adjusted to a preset value only by rotating the transmission shaft 83 to align the reference line to a certain scale line.

Both sides of the chute 21 of the second die plate 2 are provided with second die plate fixing holes 23 for fixing the second die plate 2 with the molding die plate 3. Because the first template 1 and the second template 2 are split, if the matching precision between the bottom surface of the first template 1 and the top surface of the second template 2 cannot reach the standard by only relying on the threaded connection of the first template 1 and the forming template 3 and the threaded connection of the second template 2 and the forming template 3, tiny gaps can be generated, and the phenomena of material leakage and the like are caused, therefore, the second template fixing hole 23 can be processed on the bottom surface of the second template 2, and simultaneously, corresponding threaded holes are processed on the bottom surface of the first template 1, and the gaps between the two templates can be eliminated by tightly matching the hexagon socket head cap screws with the first template 1.

The third die plate 4 is substantially similar to the first die plate 1 except that melt can enter the first parting plane 3A and the second parting plane 3B from the first die plate 1 through the bevel runner 32, and thus the third die plate 4 is not required to be provided with a separate feed port 11 and a feed die plate screw hole 15. The fourth template 5 is identical to the second template 2.

Fig. 15 is a perspective view of a feed die plate in a first embodiment of the present application. The feed die plate 6 is provided with a feed flow path for dividing one pulp inlet 611 into a plurality of pulp outlets 612, and the feed die plate 6 has two end faces parallel to each other. In this embodiment, the feeding die plate 6 is provided with one pulp inlet 611 and two pulp outlets 612, the two pulp outlets 612 are disposed on the end face of the feeding die plate 6 close to the first die plate 1, and the pulp inlet 611 is disposed on the end face of the feeding die plate 6 far from the first die plate 1. The two pulp outlets 612 are distributed on two sides of the pulp inlet 611, and the pulp inlet 611 is obliquely split to the two pulp outlets 612 through the feeding flow passage.

Because the feeding runner is simple, the feeding runner can be realized by only using two plate-type dies, and the two plate-type dies only have one parting surface. As shown in fig. 16 and 17, the feed die plate 6 is divided into a first feed die plate 61 and a second feed die plate 62 by a third parting plane 6A.

Fig. 18 is a perspective view of a molding die plate in the first embodiment of the present application, and fig. 19 is a front view of the molding die plate in the first embodiment of the present application. The front view and the rear view of the molding die plate 3 are completely identical, and therefore omitted. In this embodiment, two molding runners 31 are provided on the first parting surface 3A, and two molding runners 31 having identical shapes and sizes are arranged along the transverse direction, the two molding runners 31 are not symmetrically distributed with respect to a perpendicular bisector of the length of the molding die plate 3 as an axis, but the symmetry axis is deviated from the perpendicular bisector of the molding die plate 3 by a certain distance, and the distance is exactly equal to the length of the die 313, so that two molding runners 31 are also provided on the second parting surface 3B, the molding runners 31 of the first parting surface 3A and the second parting surface 3B are staggered with each other, and the die 313 at the lower end of the molding runners 31 are also staggered with each other.

After extrusion from the belt casting die, the melt has quite high temperature, and needs to be shaped and cooled by air cooling and water cooling, and the water cooling is most in actual production and manufacture. The concrete mode of water cooling is as follows: a cold water tank is arranged below the belt casting die, the melt is extruded into strips through the belt casting die, then vertically enters the water surface for cooling and molding, and the packaging belt is drafted to a subsequent roller through a drafting device for drafting. The dies 313 on the first parting surface 3A and the dies 313 on the second parting surface 3B are distributed alternately, so that the distance between two adjacent dies 313 is increased, and the sizing cooling after melt extrusion is ensured not to be disturbed. Because the drawing direction of the drawing device is perpendicular to the discharging direction, if the die 313 on the first parting surface 3A and the die 313 on the second parting surface 3B are arranged at opposite positions, the movement tracks of the packing belt drawn by the drawing device are overlapped, so that the drawing effect is affected on one hand, and the melt which is not completely cooled is extremely easy to adhere, so that the discharging is not smooth, and the produced product is scrapped.

Each molding runner 31 includes a main runner 311 and a branch runner 312 that communicate from top to bottom. The upper end of the main flow channel 311 is in a hemispherical structure, the lower end of the main flow channel 311 is in a semi-cylindrical structure, and the length direction of the semi-cylindrical structure of the main flow channel 311 is parallel to the height direction of the forming template 3. The main runner 311 is used for enabling the melt to enter the molding runner 31 from the feed inlet 11 perpendicular to the first parting surface 3A on the first template 1, and gradually transits the flow direction of the melt from the direction perpendicular to the first parting surface 3A to the vertical downward direction after flowing through the semi-cylindrical structure.

The split flow channel 312 is divided into three parts, the split flow area 3121 is located at the upper part, the split flow area 3121 divides one main flow channel 311 into a plurality of flow channels, and in the present embodiment, the split flow area 3121 is divided into two. The middle part is a compression area 3122, the outer contour of the compression area 3122 is isosceles trapezoid, the cross section of the compression area 3122 is a right trapezoid, the inclined plane of the compression area 3122 forms a certain included angle with the first parting surface 3A, generally 0.5-2 degrees, the cross section area of the compression area 3122 on the horizontal plane is gradually reduced, the melt passes through the compression area 3122 from top to bottom, a certain acceleration is generated, and the molding area 3123 is rapidly and uniformly filled. The lower end of the forming zone 3123 is connected to the die 313, and the shape of the die 313 determines the cross-sectional shape of the extruded material, and the cross-sectional shape of the packing belt is rectangular, so the shape of the die 313 is also rectangular.

The positions where the die 313 is set are classified into the following three types: the first is that the first is only arranged on the bottom surfaces of the second template 2 and the fourth template 5; the second is only arranged on the bottom surface of the molding template 3; the third is that a part is provided on the bottom surfaces of the second die plate 2 and the fourth die plate 5, and another part is provided on the bottom surface of the molding die plate 3. In this embodiment, as can be seen from fig. 10, 21 and 22, a part of the third setting scheme is disposed on the second die plate 2 and the fourth die plate 5, and the advantage of the sliding block 85 is that the sliding block 85 is mounted on the second die plate 2 and the fourth die plate 5, so that the sliding block 85 can only move in the range of the second die plate 2 and the fourth die plate 5 in the thickness adjusting process without crossing the parting surface to enter the molding runner 31 of the molding die plate 3, and the molding runner 31 of the second die plate 2 and the fourth die plate 5 has small volume, little resistance to the movement of the sliding block 85, easy thickness adjusting and high adjusting precision.

As shown in fig. 20, an oblique angle runner 32 is arranged between the molding runner 31 of the first parting surface 3A and the molding runner 31 of the second parting surface 3B to enable the two runners to be mutually communicated, so that only one feeding template 6 can be arranged, and after the melt flows into the runner of the first parting surface 3A from the feeding template 6, the melt directly enters the runner of the second parting surface 3B through the oblique angle runner 32, and the feeding template 6 is not required to be arranged on the first template 1 and the second template 2 respectively, thereby simplifying the design and manufacturing of the die and reducing the cost of the whole die. Specifically, the angled flow channel 32 may be disposed on a semi-cylindrical structure at the lower end of the main flow channel 311 because the semi-cylindrical surface is easier to process the angled flow channel 32 with respect to the semi-spherical surface. For example, the oblique holes may be drilled by electric drill to form the oblique flow channels 32, but the oblique flow channels 32 may be in other forms, but the basic design principles of avoiding bending of the flow channels are required to be complied with.

In order to enable each molding runner 31 to control the flow rate individually, the first and third templates 1 and 4 are connected with a flow rate adjusting device 7, and the flow rate adjusting device 7 may be a flow rate adjusting screw or a flow rate adjusting pin, and the flow rate adjusting device 7 is inserted into the molding runner 31. In this embodiment, the flow rate adjusting device 7 is a flow rate adjusting screw, so that the flow rate adjusting device screw holes 13 need to be formed in the first template 1 and the third template 4 to fix the flow rate adjusting screw. The flow rate adjusting screw is basically similar to a conventional screw, and the adjusting principle is that the depth of the flow rate adjusting screw to the inner wall of the forming flow channel 31 is controlled by controlling the screwing amount of the flow rate adjusting screw, and the larger the screwing amount is, the smaller the section of the melt passing through the part is, the flow rate is also reduced, otherwise, the smaller the screwing amount is, and the flow rate is increased accordingly.

The adjusting device screw hole may be disposed at a position on the first mold plate 1 corresponding to a junction between the split area 3121 and the compression area 3122 of the split channel 312, and in order to avoid the flow adjusting screw from being completely screwed into the surface of the molding flow channel 31, an avoidance hole 33 may be disposed at a junction between the split area 3121 and the compression area 3122 of the split channel 312. The depth of the relief hole 33 should be such that a certain gap is formed between the flow control screw and the bottom of the relief hole 33 after the flow control screw is completely screwed in.

To sum up, in the molding process of the belt casting device, the high-temperature melt is injected into the feeding template 6 from the extruder, the feeding runner of the feeding template 6 divides the melt into two parts and then enters the molding template 3 from the feeding port 11, the first parting surface 3A and the second parting surface 3B of the molding template 3 are respectively provided with four molding runners 31, the molding runners 31 on different parting surfaces are communicated through the bevel runners 32, the 4 molding runners 31 are divided into 8 molding areas 3123 through the dividing runner 312, and finally the melt is extruded from the 8 dies 313 which are alternately arranged, so that 8 packing belts can be molded simultaneously.

Example 2

Fig. 23 is a top view of a first feed die plate in a second embodiment of the utility model. Unlike the first embodiment, the feed die plate 6 is provided with three pulp outlets 612. On the premise of ensuring good forming of the melt, the length of the feeding flow channel should be as short as possible, if more than three slurry outlets 612 are arranged, the length from the slurry inlet 611 to the slurry outlet 612 will be longer, the pressure loss is increased, and the melt is cooled too much before entering the forming template 3, so that the forming quality is affected. Fig. 24 is a front view of a forming die plate in a second embodiment of the present application. After the number of the pulp outlets 612 increases by one, the number of the molding runners 31 on the molding die plate 3 increases by two (front surface plus back surface). In this embodiment, only one feeding port 611 is needed to simultaneously form 12 strapping bands.

In the description of the present specification, reference to the terms "one embodiment," "certain embodiments," "illustrative embodiments," "examples," "specific examples," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the utility model. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiments or examples. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

What has been described above is merely some embodiments of the present utility model. It will be apparent to those skilled in the art that various modifications and improvements can be made without departing from the spirit of the utility model.

Claims (8)

1. The utility model provides a casting belt equipment production line for simultaneously producing twenty strapping, includes melt filter (91), booster pump (92), cooling device (93) and two-way draft device (94), its characterized in that still includes casting belt mould, melt filter (91), booster pump (92), casting belt mould and cooling device (93) are all provided with two sets of, and every equipment of group communicates in proper order, and two sets of casting belt mould are first casting belt mould and second casting belt mould respectively, eight strapping are produced to first casting belt mould, twelve strapping are produced to second casting belt mould, after cooling device (93) cooling design is carried out to the strapping that first casting belt mould and second casting belt mould produced, equally divide and input the quantity of strapping respectively to two-way draft device (94) and draft;

the casting belt die comprises a first die plate (1), a second die plate (2), a forming die plate (3), a third die plate (4) and a fourth die plate (5), wherein the forming die plate (3) is provided with a first parting surface (3A) and a second parting surface (3B), the first die plate (1) and the second die plate (2) are installed on the first parting surface (3A), the third die plate (4) and the fourth die plate (5) are installed on the second parting surface (3B), the first die plate (1) and/or the third die plate (4) are/is provided with a feeding die plate (6), the feeding die plate (6) is provided with a plurality of forming runners (31), the feeding runners are respectively communicated with the forming runners (31), the bottom of the casting belt die is provided with a plurality of mouth dies (313), the mouth dies (313) are communicated with the corresponding forming runners (31), and the plurality of mouth dies (313) are alternately arranged on the first parting surfaces (3A and the second parting surfaces (3B);

two forming runners (31) which are oppositely arranged on the first parting surface (3A) and the second parting surface (3B) are correspondingly communicated through independent oblique angle runners (32), the two forming runners (31) are symmetrically distributed with symmetrical axes, and the distance of the symmetrical axes deviating from the perpendicular bisector of the forming template (3) is the length of the die (313).

2. A strip casting plant production line according to claim 1, characterized in that the lower ends of the second die plate (2) and the fourth die plate (5) are respectively provided with a plurality of slide grooves (21), the slide grooves (21) being provided with thickness adjusting means (8) for adjusting the thickness of the die (313).

3. The casting belt equipment production line according to claim 2, characterized in that the thickness adjusting device (8) comprises a fixed plate (81), a shaft sleeve (82), a transmission shaft (83), an end cover (84) and a sliding block (85), the fixed plate (81) is connected with the second template (2) or the fourth template (5) through the shaft sleeve (82), the fixed plate (81) is provided with a limiting hole (812), the transmission shaft (83) is installed in the limiting hole (812), one end of the transmission shaft (83) is provided with a threaded section (835), the other end of the transmission shaft (83) is provided with a torque transmission section (831), the sliding block (85) is matched with the sliding groove (21), the sliding block (85) is slidably connected with a threaded hole matched with the threaded section (835), and the threaded hole of the sliding block (85) is in threaded connection with the threaded section (835) of the transmission shaft (83).

4. A casting strip apparatus line as claimed in claim 3, characterised in that the drive shaft (83) is sleeved with a dial (86), the dial (86) being provided with graduation marks and graduation values.

5. A casting belt apparatus production line according to claim 1, characterized in that the feed die plate (6) comprises a first feed die plate (61) and a second feed die plate (62), the feed die plate (6) being provided with one pulp inlet (611) and a plurality of pulp outlets (612), the pulp inlet (611) and the pulp outlets (612) being in communication via feed channels.

6. A strip casting plant production line according to claim 1, characterized in that the forming runner (31) comprises a main runner (311) and a split runner (312) which are in communication, the split runner (312) comprising, from top to bottom, a split zone (3121), a compression zone (3122) and a forming zone (3123), the forming zone (3123) being in communication with the die (313).

7. A belt casting plant production line according to claim 1, characterized in that the first belt casting mould is provided with eight dies (313) and the second belt casting mould is provided with twelve dies (313).

8. A strip casting plant production line according to claim 1, characterized in that the first (1) and the third (4) mould plates are each fitted with a flow regulating device (7) inserted into the forming runner (31).

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