Die pre-sleeving mechanism of zipper head injection molding machine

Abstract

The utility model discloses a pre-mold sleeving mechanism of a zipper head injection molding machine, which comprises a support frame, a transverse moving mechanism horizontally and fixedly arranged on the support frame, and a mold sleeving assembly fixedly arranged at the output end of the transverse moving mechanism, the die sleeving assembly comprises a vertically-arranged connecting plate and a die sleeving plate detachably arranged at the bottom of the connecting plate, a die groove is formed in the die sleeving plate, and a supporting plate and an opening and closing mechanism used for driving the supporting plate to horizontally move in a reciprocating mode to leave the die sleeving plate are arranged at the bottom of the die sleeving plate in a sliding mode. According to the mold pre-sleeving mechanism, materials can be fed into the mold groove in the mold sleeve plate in advance while the injection mold carries out subsequent work, and when the injection mold returns to the discharging stage after demolding is completed, the supporting plate is controlled to be opened through the opening and closing mechanism, so that the materials in the mold groove fall into the injection mold; and the time of the blanking stage is effectively saved, so that the production efficiency is greatly improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of zipper head production, and particularly relates to a pre-sheathing die mechanism of a zipper head injection molding machine. Background Technique

[0002] At present, many zipper head manufacturers inject rubber or silica gel into the pull head or pull tab of the zipper head. The production process adopted by the existing zipper head injection molding automation production line is mainly as follows: first, the pull head or pull tab is transported to the injection molding die, and then the injection molding die is transported into the injection molding equipment to complete the injection molding operation to form a zipper injection group. After injection molding, operations such as demolding and cutting are completed.

[0003] For example, a pull tab injection molding production line of a zipper head disclosed by the applicant in the Chinese utility model patent with the publication number of "CN211683589U" includes an injection molding equipment, a zipper head feeding device, a demolding device, a cutting device, an injection molding die, a transmission device, and a pulling device. The zipper head feeding device can sequentially clamp the zipper heads to be injection molded on the injection molding die; the injection molding die is slidably installed on the transmission device, and the front and rear sides of the transmission device respectively extend to the zipper head feeding device and the injection molding equipment; the demolding device is installed between the injection molding equipment and the zipper head feeding device, and the pulling device is arranged adjacent to the transmission device on the left and right; the pulling device can pull the zipper injection group to the cutting device to cut it into a plurality of formed zipper heads. The utility model improves the operation safety and has higher production efficiency compared with the traditional pull tab injection molding production line; in addition, the distance between the pulling device and the injection molding equipment can be reduced, reducing the overall length of the pull tab injection molding production line in the front and rear directions, that is, reducing the occupied space required by this production line.

[0004] Although this injection molding production line improves the operation safety and has higher production efficiency compared with the traditional pull tab injection molding production line, the applicant found during use that when the injection molding die returns to the feeding port of the zipper head feeding device after demolding, it needs to wait for the feeding device to feed the materials in sequence before proceeding with the subsequent work, that is, the production efficiency of the feeding stage of this production line is relatively low, and its structure still needs to be optimized.

[0005] In view of this, the applicant has conducted in-depth research on the above problems, and thus this case has been generated. Content of the Utility Model

[0006] The purpose of the utility model is to provide a pre-sheathing die mechanism of a zipper head injection molding machine that can improve the production efficiency of a zipper head injection molding production line.

[0007] In order to achieve the above purpose, the utility model adopts the following technical solution:

[0008] A pre-mold sleeve mechanism of a zipper head injection molding machine comprises a support frame, a transverse movement mechanism horizontally fixed on the support frame, and a mold sleeve assembly fixed at the output end of the transverse movement mechanism, the mold sleeve assembly comprises a vertically arranged connecting plate and a detachable mold sleeve plate arranged at the bottom of the connecting plate, a plurality of mold grooves for accommodating materials are arranged at intervals on the mold sleeve plate, the mold grooves pass through the upper and lower sides of the mold sleeve plate, the bottom of the mold sleeve plate is slidably provided with a supporting plate for receiving materials and an opening and closing mechanism for driving the supporting plate to move horizontally back and forth away from the mold sleeve plate.

[0009] Furthermore, a transverse slide rail is provided at the bottom of the support frame, a slide seat is provided on the transverse slide rail, and the sleeve mold assembly is fixed on the slide seat.

[0010] Furthermore, the support frame includes a first bracket and a second bracket arranged at intervals in the horizontal direction, and the transverse movement mechanism is fixed on the first bracket and the second bracket.

[0011] Furthermore, the opening and closing mechanism includes a vertical plate arranged vertically, an opening and closing cylinder fixed on the side of the vertical plate and a horizontal plate fixed on the top of the vertical plate, the support plate is located at the top of the horizontal plate, and a first long groove is provided through the middle of the horizontal plate, and the first long groove is arranged along the length direction of the horizontal plate, a push-pull block is provided at the output end of the opening and closing cylinder, one end of the push-pull block is located at the bottom of the first long groove, and a first mounting shaft is provided at the end of the push-pull block located at the bottom of the long groove, and the first mounting shaft is located in the first long groove, a first bearing is provided on the top of the first mounting shaft, and the first bearing is located in the first long groove, and an obliquely arranged second long groove is provided at a position on the support plate corresponding to the first long groove, and the first bearing is located in the second long groove.

[0012] Furthermore, a third long groove is respectively opened on both sides of the length direction of the support plate, and the third long groove is arranged along the width direction of the support plate. A plurality of installation grooves are opened on the upper side of the cross plate at positions corresponding to the third long grooves, and a second bearing is rotatably arranged in the installation groove, and the second bearing is located in the third long groove.

[0013] Furthermore, the transverse movement mechanism includes a screw motor, a screw drivingly connected to the screw motor, and a screw nut arranged on the screw, the sleeve mold assembly is fixed on the screw nut, and the screw is arranged in a horizontal direction.

[0014] By adopting the above-mentioned design scheme, the beneficial effects of the utility model are:

[0015] The pre - sleeving die mechanism of the present utility model can pre - feed materials into the die slots on the die sleeve plate while the injection mold is performing subsequent operations. When the injection mold returns to the blanking stage after demolding, it only needs to control the support plate to open through the opening - closing mechanism, so that the materials in the die slots fall into the injection mold, effectively saving the time in the blanking stage and greatly improving the production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a three - dimensional schematic diagram of the pre - sleeving die mechanism of the present utility model.

[0017] Figure 2 It is a three - dimensional schematic diagram of the opening - closing mechanism and the support plate in the pre - sleeving die mechanism of the present utility model, where one side of the support plate is in a disassembled state with the opening - closing mechanism, and the other side of the support plate is in an assembled state with the opening - closing mechanism.

[0018] Figure 3 It is a three - dimensional schematic diagram of the pre - sleeving die mechanism of the present utility model arranged on an injection production line.

[0019] In the figure:

[0020] 1 - Support frame; 10 - Zipper head blanking mechanism;

[0021] 11 - First support; 12 - Second support;

[0022] 2 - Transverse movement mechanism; 20 - Injection mold;

[0023] 21 - Transverse movement slide rail; 22 - Slide block;

[0024] 23 - Lead screw motor; 24 - Lead screw;

[0025] 25 - Lead screw nut; 3 - Sleeve die assembly;

[0026] 30 - Transmission device; 31 - Connecting plate;

[0027] 32 - Die sleeve plate; 33 - Die slot;

[0028] 34 - Support plate; 341 - Second long slot;

[0029] 342 - Third long slot; 4 - Opening - closing mechanism;

[0030] 40 - Zipper head clamping position; 41 - Vertical plate;

[0031] 42 - Opening - closing cylinder; 43 - Horizontal plate;

[0032] 44 - Positioning plate; 421 - Pushing and pulling block;

[0033] 422 - First mounting shaft; 423 - First bearing;

[0034] 431 - first long groove; 432 - second bearing. DETAILED DESCRIPTION

[0035] The following is a clear and complete description of the technical solutions in the embodiments of the present invention in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0036] like Figures 1 to 3 As shown, a pre-mold mechanism of a zipper head injection molding machine includes a support frame 1, a transverse movement mechanism 2 fixedly mounted on the support frame 1 horizontally, and a mold assembly 3 fixedly mounted on the output end of the transverse movement mechanism 2. A transverse movement slide rail 21 is further provided at the bottom of the support frame 1, a slide seat 22 is provided on the transverse movement slide rail 21, and the mold assembly 3 is fixedly mounted on the slide seat 22. The transverse movement slide rail 21 and the slide seat 22 are provided to improve the stability of the transverse movement mechanism 2; further, the support frame 1 includes a first bracket 11 and a second bracket 12 arranged at intervals in the horizontal direction, and the transverse movement mechanism 2 is fixedly mounted on the first bracket 11 and the second bracket 12; the mold assembly 3 is fixedly mounted on the slide seat 22; The mold assembly 3 includes a vertically arranged connecting plate 31 and a mold sleeve 32 detachably provided at the bottom of the connecting plate 31. The mold sleeve 32 and the connecting plate 31 are detachable in an existing conventional manner, such as being connected by fasteners, which will not be described in detail in this embodiment; a plurality of mold grooves 33 for accommodating materials are arranged at intervals on the mold sleeve 32, and the mold grooves 33 pass through the upper and lower sides of the mold sleeve 32. A support plate 34 for receiving materials and an opening and closing mechanism 4 for driving the support plate 34 to move horizontally back and forth away from the mold sleeve 32 are slidably provided at the bottom of the mold sleeve 32.

[0037] Furthermore, the transverse movement mechanism 2 of the utility model includes a screw motor 23, a screw 24 drivingly connected to the screw motor 23, and a screw nut 25 arranged on the screw 24, the sleeve mold assembly 3 is fixed on the screw nut 25, and the screw 24 is arranged in the horizontal direction.

[0038] It should be noted that the pre-mold mechanism of the utility model is to improve the production efficiency of the unloading stage of the existing zipper head injection molding machine. This embodiment is illustrated by taking the pull tab injection molding production line disclosed in the Chinese utility model patent with the publication number "CN211683589U" mentioned in the background technology as an example.

[0039] The pre-moulding mechanism is arranged at the discharge port of the zipper head blanking mechanism 10 and above the injection mould 20. The first support 11 and the second support 12 can be arranged on the machine table of the injection moulding machine. The transmission device 30 is used to send the injection mould 20 to the subsequent injection equipment. The transmission direction of the lead screw 24 is the same as the moving direction of the transmission device 30. Align the blanking port of the zipper head blanking mechanism 10 with the mould groove 33. The support plate 34 is located between the mould groove 33 and the injection mould 20. The injection mould 20 has a zipper head clamping position 40 for carrying the material to be injected. Correspondingly, there are two sets of mould plates 32 in the present utility model. The zipper head clamping positions 40 are respectively arranged on both sides of the injection mould 20. The mould grooves 33 on the two sets of mould plates 32 respectively correspond to the blanking ports of the zipper head blanking mechanisms 10 on both sides. The mould grooves 33 on the two sets of mould plates 32 correspond to the positions of the zipper head clamping positions 40 of the injection mould 20 below one by one. Correspondingly, there are also two sets of opening and closing mechanisms 4. The two sets of opening and closing mechanisms 4 are respectively arranged below the mould plates 32 on both sides. It should be noted that the zipper head blanking mechanism 10 in this embodiment is the zipper head blanking device in the above patent, the injection mould 20 in this embodiment is the injection mould in the above patent, the transmission device 30 in this embodiment is the transmission device in the above patent, and the zipper head clamping position 40 in this embodiment is the zipper head clamping position in the above patent. The structures of the zipper head blanking mechanism 10, the injection mould 20, the transmission device 30 and the zipper head clamping position 40 in this embodiment are all introduced in detail in the above patent, and will not be elaborated in this embodiment again.

[0040] During use, the lead screw motor 23 drives the lead screw nut 25 and the sleeve die assembly 3 to move, so that the die groove 33 on the sleeve die assembly 3 aligns with the material discharge port of the zipper head feeding mechanism 10, and the zipper head feeding mechanism 10 is started to orderly send materials into the die groove 33. Specifically, after the zipper head feeding mechanism 10 sends the materials into the die groove 33, the lead screw motor 23 continues to move, so that the next die groove 33 continues to align with the material discharge port of the zipper head feeding mechanism 10. After all the die grooves 33 are filled with materials, the zipper head feeding mechanism 10 stops working. The materials in the die groove 33 are received by the bottom support plate 34 and will not fall down. Then, the injection mold 20 is controlled by the transmission device 30 to move below the die sleeve plate 32, and the zipper head clamping positions 40 on the injection mold 20 are made to correspond to the positions of the die grooves 33 one by one. Then, the support plate 34 is controlled by the opening and closing mechanism 4 to move away from the die sleeve plate 32, and the materials in the die groove 33 directly fall into the zipper head clamping positions 40 on the injection mold 20. The transmission device 30 controls the injection mold 20 to perform subsequent operations; when the injection mold 20 performs subsequent operations, the support plate 34 is controlled by the opening and closing mechanism 4 to move back to the bottom of the die sleeve plate 32, and the die groove 33 on the sleeve die assembly 3 is aligned with the material discharge port of the zipper head feeding mechanism 10 again, and the zipper head feeding mechanism 10 is started to orderly pre-send materials into the die groove 33. When the injection mold 20 completes demolding and returns to the feeding stage, it only needs to control the support plate 34 to open through the opening and closing mechanism 4, so that the materials in the die groove 33 fall into the injection mold 20, saving the time for the injection mold 20 to wait for the zipper head feeding mechanism 10 to feed materials in sequence.

[0041] It should be noted that the pre-sleeve die mechanism of the present utility model is not limited to being used in the above-mentioned tab injection production line, and can also be used in the pull head injection production line. Specifically, as long as the zipper head feeding mechanism 10 of the above-mentioned tab injection production line is replaced with an existing pull head feeding mechanism, for example, the zipper head feeding mechanism 10 is replaced with a vertical feeding device of a tab injection production line disclosed in the Chinese utility model patent with the publication number of "CN212147277U" by the applicant. Correspondingly, the shape of the die groove 33 in the die sleeve plate 32 is changed according to the shape of the pull head to be injected, so that it corresponds to the shape of the pull head in the pull head feeding mechanism.

[0042] Such as Figure 1 and Figure 2As shown in the figure, the opening and closing mechanism 4 of the present utility model includes a vertical plate 41, an opening and closing cylinder 42 fixedly arranged on the side of the vertical plate 41, and a horizontal plate 43 fixedly arranged on the top of the vertical plate 41. Specifically, the horizontal plate 43 is horizontally arranged, the support plate 34 is located on the top of the horizontal plate 43, and there are also two positioning plates 44 for fixing the horizontal plate 43 on the horizontal plate 43. The two positioning plates 44 are respectively located at both ends of the top of the vertical plate 41. Through installation grooves are opened at the bottoms of the two positioning plates 44. The two ends of the horizontal plate 43 and the support plate 34 are respectively located between the two installation grooves; a first long groove 431 is vertically penetrated through the middle of the horizontal plate 43. The first long groove 431 is arranged along the length direction of the horizontal plate 43. The opening and closing cylinder 42 is horizontally arranged. The output end of the opening and closing cylinder 42 is provided with a push-pull block 421. One end of the push-pull block 421 is located at the bottom of the first long groove 431. A first mounting shaft 422 is arranged on one end of the push-pull block 421 located in the first long groove 431. The first mounting shaft 422 is located in the first long groove 431. A first bearing 423 is arranged on the top of the first mounting shaft 422. The first bearing 423 is located in the first long groove 431. An obliquely arranged second long groove 341 is opened at the position corresponding to the first long groove 431 on the support plate 34. The first bearing 423 is located in the second long groove 341; preferably, third long grooves 342 are respectively opened on both sides in the length direction of the support plate 34. The third long grooves 342 are arranged along the width direction of the support plate 34. Preferably, the third long grooves 342 are respectively opened at both ends in the length direction of the second long groove 341. A plurality of mounting grooves are opened at the positions corresponding to the third long grooves 342 on the horizontal plate 43. A second mounting shaft is fixedly arranged in the mounting groove. A second bearing 432 is rotatably arranged on the second mounting shaft. The second bearing 432 is located in the third long groove 342. Preferably, in the present utility model, two mounting grooves are opened at the positions corresponding to each of the third long grooves 342 on the horizontal plate 43.

[0043] The opening and closing cylinder 42 controls the push-pull block 421 to perform horizontal reciprocating movement. The first mounting shaft 422 on the push-pull block 421 drives the first bearing 423 to reciprocate in the first long groove 431 on the horizontal plate 43 and the second long groove 341 on the support plate 34. Since the second long groove 341 on the support plate 34 is obliquely arranged, the first bearing 423 will drive the support plate 34 to perform oblique reciprocating movement when moving, so as to realize the support plate 34 moving away from or resetting to the mold sleeve plate 32. The arrangement of the third long groove 342 and the second bearing 432 can be used to guide the moving direction of the support plate 34, so that the support plate 34 reciprocates along its width direction.

[0044] The pre-sheathing die mechanism of the present utility model can pre-feed materials into the die groove 33 on the die sleeve plate 32 while the injection mold 20 is performing subsequent operations. When the injection mold 20 completes demolding and returns to the blanking stage, it only needs to control the support plate 34 to open through the opening and closing mechanism 4, so that the materials in the die groove 33 fall into the injection mold 20, effectively saving the time of the blanking stage and greatly improving the production efficiency.

[0045] Although the embodiments of the present utility model have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principle and spirit of the present utility model. The scope of the present utility model is defined by the appended claims and their equivalents.

Claims

1. A pre-molding mechanism for a zipper head injection molding machine, characterized in that: It includes a support frame, a transverse movement mechanism horizontally fixed on the support frame, and a sleeve mold assembly fixed at the output end of the transverse movement mechanism, the sleeve mold assembly includes a vertically arranged connecting plate and a detachable mold sleeve plate arranged at the bottom of the connecting plate, the mold sleeve plate is provided with a plurality of mold grooves for accommodating materials at intervals, the mold grooves pass through the upper and lower sides of the mold sleeve plate, the bottom of the mold sleeve plate is slidably provided with a support plate for receiving materials and an opening and closing mechanism for driving the support plate to move back and forth horizontally to leave the mold sleeve plate.

2. The pre-molding mechanism of the zipper head injection molding machine according to claim 1, characterized in that: A transverse sliding rail is also provided at the bottom of the support frame, a sliding seat is provided on the transverse sliding rail, and the sleeve mold assembly is fixed on the sliding seat.

3. The pre-molding mechanism of the zipper head injection molding machine according to claim 1, characterized in that: The support frame includes a first bracket and a second bracket which are arranged at intervals in the horizontal direction, and the transverse movement mechanism is fixed on the first bracket and the second bracket.

4. The pre-molding mechanism of the zipper head injection molding machine according to claim 1, characterized in that: The opening and closing mechanism includes a vertical plate arranged vertically, an opening and closing cylinder fixed on the side of the vertical plate and a horizontal plate fixed on the top of the vertical plate, the support plate is located at the top of the horizontal plate, and a first long groove is provided through the middle of the horizontal plate, and the first long groove is arranged along the length direction of the horizontal plate, a push-pull block is provided at the output end of the opening and closing cylinder, one end of the push-pull block is located at the bottom of the first long groove, and a first mounting shaft is provided at one end of the push-pull block located at the bottom of the long groove, and the first mounting shaft is located in the first long groove, a first bearing is provided on the top of the first mounting shaft, and the first bearing is located in the first long groove, and an obliquely arranged second long groove is provided on the support plate at a position corresponding to the first long groove, and the first bearing is located in the second long groove.

5. The pre-molding mechanism of the zipper head injection molding machine according to claim 4, characterized in that: A third long groove is respectively provided on both sides of the support plate in the length direction, and the third long groove is arranged along the width direction of the support plate. A plurality of installation grooves are provided on the cross plate at positions corresponding to the third long grooves, and a second bearing is rotatably arranged in the installation groove, and the second bearing is located in the third long groove.

6. The pre-molding mechanism of the zipper head injection molding machine according to claim 1, characterized in that: The transverse movement mechanism includes a screw motor, a screw connected to the screw motor in a transmission manner, and a screw nut arranged on the screw, the sleeve die assembly is fixed on the screw nut, and the screw is arranged in a horizontal direction.

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