A gate piece separating device for an injection molding machine

Abstract

This utility model relates to the field of plastic processing equipment technology and discloses a gate workpiece separation device for injection molding machines. It includes a support plate, a flexible clamp at the bottom of the support plate, an insertion tube fixedly connected to the top of the flexible clamp, a slot C at the bottom of the support plate, and the top of the flexible clamp inserted into the inner wall of the slot C. A buffer assembly is fixedly installed at the bottom of the support plate, and a disassembly assembly, including a threaded rod, is provided inside the support plate. In this utility model, by simply rotating a knob to drive the threaded rod, the lifting and lowering of the moving block can be easily controlled using a simple threaded transmission principle, thereby driving a series of linkage mechanisms. Operators can quickly complete the insertion and separation of the insertion rod and the insertion tube slot without the need for complex tools, greatly shortening the replacement time of the flexible clamp and improving the maintenance efficiency of the equipment.

Description

Technical Field

[0001] This utility model relates to the field of plastic processing equipment technology, and in particular to a gate workpiece separation device for injection molding machines. Background Technology

[0002] In injection molding, the gate-workpiece separation device used in injection molding machines is a crucial piece of equipment. Its main function is to precisely and efficiently separate the molded workpiece from the gating system after the injection molding process. This device operates through a specific mechanical structure, power drive, and intelligent control, flexibly adjusting the separation force, method, and timing according to the shape, size, and gating design of different injection molded products. It can quickly cut off or remove the gate portion without damaging the workpiece, providing excellent preparation for subsequent post-processing steps such as grinding and assembly, thereby effectively improving the overall efficiency and product quality of injection molding production.

[0003] In traditional injection molding machine gate separation devices, replacing the flexible clamp is typically a complex operation. When replacing the flexible clamp, the operator must first use specific tools, such as wrenches and screwdrivers, to unscrew the multiple bolts securing it one by one. These bolts are usually located at the connection between the clamp and the support plate; they are numerous and in concealed positions, requiring careful handling during disassembly to avoid losing or dropping them. After unscrewing the bolts, the flexible clamp is removed from the support plate. When installing a new flexible clamp, the bolts must be realigned with the threaded holes and tightened sequentially to ensure a secure installation. The entire process requires a certain level of skill and experience from the operator and is time-consuming.

[0004] Existing technologies present several inconveniences when replacing flexible fixtures. Firstly, the process of individually unscrewing and tightening multiple bolts is cumbersome, time-consuming, and labor-intensive, leading to excessive equipment downtime and reduced production efficiency. Furthermore, bolted connections may experience thread wear and loosening after prolonged use, affecting the fixture's installation stability and consequently the quality of gate-workpiece separation. Therefore, a gate-workpiece separation device for injection molding machines is proposed to address these issues. Utility Model Content

[0005] To overcome the above shortcomings, this utility model provides a gate workpiece separation device for injection molding machines, which aims to improve the problems of complex and time-consuming replacement of flexible clamps in the prior art, the need for multiple tools, and the tendency to cause long equipment downtime.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: a gate workpiece separation device for an injection molding machine, comprising a support plate, a flexible clamp provided at the bottom of the support plate, an insert tube fixedly connected to the top of the flexible clamp, a slot C opened at the bottom of the support plate, the top of the flexible clamp being inserted into the inner wall of the slot C, a buffer assembly fixedly installed at the bottom of the support plate, and a disassembly assembly provided inside the support plate;

[0007] The disassembly assembly includes a threaded rod, the top of which is threaded through the top of the support plate and rotatably connected to a movable block via a bearing. A connecting rod is hinged to the outer side of the movable block, and a movable ring is hinged to the bottom of the connecting rod. A groove is formed on the inner wall of the support plate, and a slider is fixedly connected to the bottom of the movable ring. The slider is adapted to the groove. An insertion rod is fixedly connected to the inner side of the movable ring. A slot B is formed on the surface of the insertion rod, and the end of the insertion rod is inserted into the inner wall of the slot B. A splicing assembly is provided on the support plate.

[0008] As a further description of the above technical solution: the splicing assembly includes a plug plate, which is fixedly connected to one side of the support plate. A slot A is provided on the other side of the support plate. The plug plate is adapted to the slot. A threaded hole is provided on the front side of the support plate.

[0009] As a further description of the above technical solution: a knob is fixedly connected to the top end of the threaded rod.

[0010] As a further description of the above technical solution: both the slider and the groove are convex in shape, and the bottom of the moving ring is slidably connected to the inner wall of the groove through the slider.

[0011] As a further description of the above technical solution: the inner side of the flexible clamp is provided with anti-slip texture.

[0012] As a further description of the above technical solution: a fixing block is fixedly connected to the bottom inner wall of the bearing plate, and a spring is fixedly connected to the outer wall of the fixing block, with the end of the spring fixedly connected to the end face of the moving ring.

[0013] As a further description of the above technical solution: the top of the bearing plate is provided with an air inlet hole, the inner wall of the air inlet hole is fixedly connected with an air inlet pipe, the bottom end of the insertion tube is connected to the top of the flexible clamp, and the insertion tube is connected to the air inlet hole and the air inlet pipe respectively.

[0014] As a further description of the above technical solution: the front side of the insert plate is provided with a threaded groove, and bolts are threadedly connected to both the threaded hole and the threaded groove.

[0015] This utility model has the following beneficial effects:

[0016] 1. In this utility model, the disassembly component allows for easy control of the lifting and lowering of the moving block by simply rotating the knob to drive the threaded rod and utilizing the simple thread transmission principle. This, in turn, drives a series of linkage mechanisms. Operators can quickly complete the insertion and separation of the insertion rod and the insertion slot without the need for complex tools, greatly shortening the replacement time of the flexible clamp and improving the maintenance efficiency of the equipment.

[0017] 2. In this utility model, the splicing components and the matching design of the insert plate and slot enable rapid positioning and splicing between the carrier plates, greatly shortening the assembly time. Attached Figure Description

[0018] Figure 1 This is a front view of a gate-workpiece separation device for an injection molding machine proposed in this utility model;

[0019] Figure 2 This is a cross-sectional structural schematic diagram of a gate-workpiece separation device for an injection molding machine proposed in this utility model;

[0020] Figure 3 This is an enlarged view of point A of a gate-workpiece separation device for an injection molding machine proposed in this utility model;

[0021] Figure 4 This is a schematic diagram of the splicing assembly of a gate workpiece separation device for an injection molding machine proposed in this utility model.

[0022] Legend:

[0023] 1. Support plate; 2. Slot A; 3. Threaded hole; 4. Air inlet pipe; 5. Flexible clamp; 6. Buffer assembly; 7. Disassembly assembly; 701. Moving block; 702. Insert rod; 703. Connecting rod; 704. Spring; 705. Moving ring; 706. Fixing block; 707. Slider; 708. Slide groove; 8. Insert plate; 9. Bolt; 10. Air inlet hole; 11. Insert pipe; 12. Slot B. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0025] Reference Figure 1 - Figure 3This utility model provides an embodiment of a gate-workpiece separation device for an injection molding machine, comprising a support plate 1, a flexible clamp 5 at the bottom of the support plate 1, the flexible clamp 5 being used to clamp the injection-molded workpiece, its flexible design adapting to workpieces of different shapes, improving the versatility of clamping, the inner side of the flexible clamp 5 having anti-slip texture, the anti-slip texture increasing the friction between the clamp and the workpiece, ensuring that the workpiece is stably clamped during the gate separation process and preventing the workpiece from slipping, the top of the flexible clamp 5 being fixedly connected to an insertion tube 11, the insertion tube 11 being used to connect the support plate 1 and the flexible clamp 5, and also serving as a channel for compressed air to enter the flexible clamp 5, the bottom of the support plate 1 having a slot C, the top of the flexible clamp 5 being inserted into the inner wall of the slot C, the flexible clamp 5 being connected to the support plate 1 through the insertion and cooperation of the slot C and the insertion tube 11, realizing the connection between the flexible clamp 5 and the support plate 1. The plate 1 can be quickly installed and disassembled, facilitating the replacement of flexible clamps 5 of different specifications. The top of the support plate 1 is provided with an air inlet hole 10, which is used to introduce compressed air, allowing the compressed air to enter the flexible clamp 5 through the air inlet pipe 4 and the insertion pipe 11. The inner wall of the air inlet hole 10 is fixedly connected to the air inlet pipe 4, which serves as a compressed air delivery pipeline, connecting an external air source to the air inlet hole 10 to ensure a stable supply of compressed air. The bottom end of the insertion pipe 11 is connected to the top of the flexible clamp 5, ensuring that compressed air can smoothly enter the flexible clamp 5 from the air inlet pipe 4 through the air inlet hole 10 and the insertion pipe 11, realizing the expansion clamping function of the flexible clamp 5. The insertion pipe 11 is connected to the air inlet hole 10 and the air inlet pipe 4 respectively. A buffer assembly 6 is fixedly installed at the bottom of the support plate 1, and a disassembly assembly 7 is provided inside the support plate 1.

[0026] Reference Figure 1 - Figure 3 The disassembly assembly 7 includes a threaded rod. The threaded end of the threaded rod passes through the top of the support plate 1 and is rotatably connected to a movable block 701 via a bearing. Rotating the threaded rod drives the movable block 701 to move up and down. The bearing connection allows the movable block 701 to move smoothly up and down as it rotates with the threaded rod. A knob is fixedly connected to the top of the threaded rod, allowing the operator to manually rotate the threaded rod to control the disassembly assembly 7 and improve operational convenience. A connecting rod 703 is hinged to the outside of the movable block 701, and the connecting rod 703 connects the movable block 701 to the support plate 1. The vertical movement of 01 is converted into the lateral movement of the moving ring 705. The conversion of movement in different directions is achieved through the hinge structure. The bottom end of the connecting rod 703 is hinged to the moving ring 705. The moving ring 705 moves laterally under the push of the connecting rod 703, thereby driving the insertion rod 702 to lock and unlock the insertion tube 11. The inner wall of the bearing plate 1 is provided with a sliding groove 708. The bottom of the moving ring 705 is fixedly connected to a slider 707. The slider 707 is adapted to the sliding groove 708. Both the slider 707 and the sliding groove 708 are convex.

[0027] Reference Figure 2 , Figure 3The bottom of the moving ring 705 is slidably connected to the inner wall of the slide groove 708 via a slider 707, which restricts the movement trajectory of the moving ring 705, ensuring that it can only slide stably in the horizontal direction and preventing the moving ring 705 from shifting during movement. A rod 702 is fixedly connected to the inner side of the moving ring 705. The rod 702 is used to insert into the slot B12 on the surface of the insertion tube 11, thereby fixing the insertion tube 11 in the slot C of the support plate 1, achieving a stable connection between the flexible clamp 5 and the support plate 1. The surface of the insertion tube 11 has a slot B12, and the end of the rod 702 is inserted into the inner wall of the slot B12. The insertion of the rod 702 into the slot B12... The components are fitted together to form a reliable mechanical locking structure to prevent the flexible clamp 5 from accidentally falling off during operation. A fixing block 706 is fixedly connected to the bottom inner wall of the support plate 1, and a spring 704 is fixedly connected to the outer wall of the fixing block 706. The end of the spring 704 is fixedly connected to the end face of the moving ring 705. The spring 704 plays a reset role in the disassembly assembly 7. When the external force on the moving ring 705 is released, the spring 704 contracts and drives the moving ring 705 to reset, which is convenient for the next operation. The support plate 1 is provided with a splicing assembly, which is used to realize the modular splicing of the support plate 1, so that the device can flexibly adjust its size and shape according to different injection molding requirements.

[0028] Reference Figure 1 , Figure 4 The splicing assembly includes a plug plate 8, which serves as a connecting component for splicing the support plates 1. It facilitates docking with the slot A2 of another support plate 1. The plug plate 8 is fixedly connected to one side of the support plate 1, and the slot A2 is provided on the other side of the support plate 1. The matching design of the slot A2 and the plug plate 8 achieves the initial splicing positioning between the support plates 1, ensuring the accuracy of the splicing. The plug plate 8 is compatible with the slot. The front of the support plate 1 has a threaded hole 3, and the front of the plug plate 8 has a threaded groove. Bolts 9 are threadedly connected to both the threaded hole 3 and the threaded groove. Through the threaded connection of the bolts 9 with the threaded hole 3 and the threaded groove, the splicing point of the two support plates 1 is further tightened, enhancing the overall stability of the spliced ​​support plate 1 and meeting the strength requirements in actual work.

[0029] Working principle: Check whether the support plate 1 and its components are intact and undamaged, and confirm that the anti-slip texture on the inner side of the flexible clamp 5 is unworn to avoid affecting the clamping effect on the workpiece. Check whether the connection between the insertion tube 11 and the flexible clamp 5 is secure, and ensure that the top of the insertion tube 11 can be smoothly inserted into the slot C at the bottom of the support plate 1, and that the connection between the air inlet hole 10, the air inlet pipe 4 and the insertion tube 11 is normal, in preparation for subsequent ventilation work. Align the insertion tube 11 at the top of the flexible clamp 5 with the slot C at the bottom of the support plate 1 and slowly insert it so that the insertion tube 11 and the slot C fit tightly.

[0030] Rotate the knob in the disassembly assembly 7. The knob drives the threaded rod to move downward. Since the threaded rod is threadedly connected to the top of the support plate 1 and its top end is rotatably connected to the moving block 701 through a bearing, the threaded rod moves downward and drives the moving block 701 to descend synchronously. During the descent of the moving block 701, the two ends of the connecting rod 703 hinged on its outer side rotate around the hinge. The rotation of the connecting rod 703 pushes the moving ring 705 hinged to it to move laterally. During this process, the slider 707 at the bottom of the moving ring 705 slides in the "U"-shaped groove 708 opened on the inner wall of the support plate 1 to ensure that the moving ring 705 moves smoothly and prevents it from deviating.

[0031] As the moving ring 705 moves laterally, the insert rod 702 fixedly connected to its inner side gradually approaches the insert tube 11. When the end of the insert rod 702 is tightly inserted into the slot B12 opened on the surface of the insert tube 11, the insert tube 11 can be firmly locked in the inner wall of the slot C, completing the installation connection between the flexible clamp 5 and the support plate 1. At this time, the spring 704 is in a stretched state, providing a restoring force for subsequent disassembly. If the support plate 1 needs to be modularly spliced, first align the insert plate 8 on one side of the support plate 1 with the slot A2 opened on the other side of the other support plate 1, and slowly push it so that the insert plate 8 is fully inserted into the slot A2, ensuring that the two fit tightly. Pick up the bolt 9 and screw one end into the threaded groove opened on the front of the insert plate 8 and the threaded hole 3 opened on the front of the support plate 1 in sequence. By tightening the bolt 9, the two support plates 1 are further fixed, completing the modular assembly, so that the support plate 1 meets the size requirements of different usage scenarios.

[0032] In the injection molding machine gate separation operation, the support plate 1 with the flexible clamp 5 installed is installed in the corresponding position of the injection molding machine, ensuring a firm connection. Compressed air is introduced into the air inlet 10 through the air inlet pipe 4. The compressed air enters the insertion tube 11 through the air inlet 10, and then enters the interior of the flexible clamp 5 through the insertion tube 11. The flexible clamp 5 expands under air pressure, and the part with anti-slip texture on its inner side tightly adheres to the workpiece. The anti-slip texture increases friction and stably clamps the workpiece. The injection molding machine performs the gate separation operation. The gate is separated from the workpiece by the corresponding cutting device or other separation mechanism. During the separation process, the flexible clamp 5 always stably clamps the workpiece, ensuring that the workpiece position is fixed, which facilitates precise separation. The flexible clamp 5 is then disassembled.

[0033] After the gate separation operation is completed, rotate the knob in the disassembly assembly 7 in the reverse direction. The knob drives the threaded rod to move upward, which in turn drives the moving block 701 to rise. During the rise of the moving block 701, the two ends of the connecting rod 703 rotate around the hinge, pulling the moving ring 705 to move laterally away from the insertion tube 11. At this time, the spring 704 contracts, and the auxiliary moving ring 705 returns to its original position. As the moving ring 705 moves, the insertion rod 702 gradually separates from the slot B12 on the surface of the insertion tube 11. When the insertion rod 702 is completely separated from the slot B12, the insertion tube 11 can be removed from the inner wall of the slot C, realizing the separation of the flexible clamp 5 from the support plate 1. This facilitates the maintenance, replacement, or subsequent use of the flexible clamp 5. If the support plate 1 has been spliced ​​before, the bolt 9 can be unscrewed first, and the insertion plate 8 can be pulled out from the slot A2 to complete the disassembly of the support plate 1, so that each module can be stored or maintained separately.

[0034] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A gate workpiece separation device for an injection molding machine, comprising a support plate (1), characterized in that: The bottom of the support plate (1) is provided with a flexible clamp (5), the top of the flexible clamp (5) is fixedly connected with a tube (11), the bottom of the support plate (1) is provided with a slot C, the top of the flexible clamp (5) is inserted into the inner wall of the slot C, the bottom of the support plate (1) is fixedly installed with a buffer assembly (6), and the inside of the support plate (1) is provided with a disassembly assembly (7). The disassembly assembly (7) includes a threaded rod, the top of which is threaded through the top of the support plate (1) and rotatably connected to a moving block (701) via a bearing. A connecting rod (703) is hinged to the outside of the moving block (701), and a moving ring (705) is hinged to the bottom of the connecting rod (703). A groove (708) is provided on the inner wall of the support plate (1). A slider (707) is fixedly connected to the bottom of the moving ring (705). The slider (707) is adapted to the groove (708). An insertion rod (702) is fixedly connected to the inner side of the moving ring (705). A slot B is provided on the surface of the insertion tube (11). The end of the insertion rod (702) is inserted into the inner wall of the slot B (12). A splicing assembly is provided on the support plate (1).

2. The gate workpiece separation device for an injection molding machine according to claim 1, characterized in that: The splicing assembly includes a plug plate (8), which is fixedly connected to one side of the support plate (1). The other side of the support plate (1) is provided with a slot A (2). The plug plate (8) is adapted to the slot. The front side of the support plate (1) is provided with a threaded hole (3).

3. The gate workpiece separation device for an injection molding machine according to claim 1, characterized in that: A knob is fixedly connected to the top end of the threaded rod.

4. The gate workpiece separation device for an injection molding machine according to claim 1, characterized in that: Both the slider (707) and the groove (708) are convex in shape, and the bottom of the moving ring (705) is slidably connected to the inner wall of the groove (708) through the slider (707).

5. A gate-workpiece separation device for an injection molding machine according to claim 1, characterized in that: The flexible clamp (5) has anti-slip texture on its inner side.

6. A gate-workpiece separation device for an injection molding machine according to claim 1, characterized in that: A fixing block (706) is fixedly connected to the bottom inner wall of the bearing plate (1), and a spring (704) is fixedly connected to the outer wall of the fixing block (706). The end of the spring (704) is fixedly connected to the end face of the moving ring (705).

7. A gate-workpiece separation device for an injection molding machine according to claim 1, characterized in that: The top of the support plate (1) is provided with an air inlet hole (10), and an air inlet pipe (4) is fixedly connected to the inner wall of the air inlet hole (10). The bottom end of the insertion tube (11) is connected to the top of the flexible clamp (5), and the insertion tube (11) is connected to the air inlet hole (10) and the air inlet pipe (4) respectively.

8. A gate-workpiece separation device for an injection molding machine according to claim 2, characterized in that: The front of the insert plate (8) is provided with a threaded groove, and the threaded hole (3) and the threaded groove are both threadedly connected with bolts (9).

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