Protective structure of multi-station injection molding machine

Abstract

The utility model discloses a protective structure of a multi-station injection molding machine in the technical field of injection molding, which comprises an injection seat, two sides and one end of the injection seat are in threaded fixed connection with a cooling seat, four corners of the upper end of the cooling seat are fixedly connected with first sliding columns, and the upper ends of the first sliding columns are fixedly connected with a first top plate. First lifting air cylinders are fixedly connected to the two sides of the upper end of the first top plate, a stamping plate is fixedly connected to one ends of the first lifting air cylinders through shafts and slidably connected to the centers of the first sliding columns in a sleeving mode, and first sliding grooves are fixedly formed in the two sides of the bottom of the stamping plate and slidably connected with an upper die plate. A demolding air cylinder is fixedly connected to one side of the lower end of the first sliding groove and fixedly connected with the upper mold plate. By means of the arrangement, it is effectively avoided that a workpiece adheres to the upper mold plate and the lower mold plate at the same time, the workpiece is prone to being damaged during demolding, the workpiece can be separated from the upper mold plate or the lower mold plate in advance, the demolding effect is better, and certain protection performance is achieved.

Description

Technical Field

[0001] This utility model belongs to the field of injection molding technology, specifically relating to a protective structure for a multi-station injection molding machine. Background Technology

[0002] Compression molding, also known as transfer molding, is a molding method for thermosetting plastics developed from compression molding. It can mold plastic parts with complex shapes, thin walls or large variations in wall thickness, and with fine inserts.

[0003] In existing injection molding machines, the workpiece tends to stick to the mold plate during the demolding process. When the workpiece sticks between the upper and lower mold plates, it is prone to damage during demolding, which has certain limitations. Utility Model Content

[0004] The purpose of this utility model is to provide a protective structure for a multi-station injection molding machine, so as to solve the problem mentioned in the background art that in the existing injection molding machine, the workpiece will stick to the mold plate during the demolding process. When the workpiece sticks between the upper and lower mold plates, it is easy to damage the workpiece during demolding, which has certain limitations.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a protective structure for a multi-station injection molding machine, comprising an injection seat, a cooling seat threadedly connected to both sides and one end of the injection seat, a first sliding column fixedly connected to the four corners of the upper end of the cooling seat, a first top plate fixedly connected to the upper end of the first sliding column, a first lifting cylinder fixedly connected to both sides of the upper end of the first top plate, a stamping plate fixedly connected to one end of the first lifting cylinder via a shaft, the stamping plate being slidably sleeved at the center of the first sliding column, a first sliding groove fixedly opened on both sides of the bottom of the stamping plate, an upper template being slidably connected to the first sliding groove, and a demolding cylinder fixedly connected to one side of the lower end of the first sliding groove, the demolding cylinder being fixedly connected to the upper template.

[0006] Preferably, the upper ends of the cooling seat are fixedly connected to the two sides of the second sliding groove, and the lower template is slidably connected inside the second sliding groove. The upper end of the injection seat is fixedly connected to the center of the injection base plate, and the center of the injection base plate is fixedly provided with a third sliding groove, which is connected to the second sliding groove.

[0007] Preferably, a fixing box is fixedly connected to one side of the cooling seat, a shifting cylinder is fixedly connected inside the fixing box, and one end of the fixing box is fixedly connected to the lower template.

[0008] Preferably, the upper four corners of the injection seat are fixedly connected to a second sliding column, the upper end of the second sliding column is fixedly connected to a second top plate, and the upper center of the second top plate is fixedly connected to the injection machine body.

[0009] Preferably, a second lifting cylinder is fixedly connected to both sides of the upper end of the second top plate, and a pressing plate is fixedly connected to one end of the second lifting cylinder. The pressing plate is slidably sleeved on the center of the second sliding column, and a buffer ring is sleeved on the outer surface of the second sliding column. The buffer ring is located at the lower end of the pressing plate.

[0010] Compared with the prior art, the beneficial effects of this utility model are:

[0011] 1. This utility model effectively avoids the workpiece from sticking to the upper and lower templates at the same time, which can easily lead to damage to the workpiece during demolding. It can make the workpiece detach from the upper or lower template in advance, resulting in a better demolding effect and providing a certain degree of protection.

[0012] 2. This utility model pre-injects and shapes the components, and after shaping, it performs repositioning, stamping, and cooling. At this time, the second workpiece can be injected, and different templates can be used for the lower template, which can process different workpieces, making it more flexible. There is no need to wait for cooling time, saving a lot of time and improving processing efficiency. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of this utility model;

[0014] Figure 2 This is a schematic diagram of the structure of the injection seat of this utility model;

[0015] Figure 3 This is a side view of the cooling base of this utility model.

[0016] Figure 4 This is a schematic diagram of the bottom structure of the stamping plate of this utility model.

[0017] In the diagram: 1. Injection seat; 2. Cooling seat; 3. First sliding column; 4. First top plate; 5. First lifting cylinder; 6. Stamping plate; 7. First slide groove; 8. Upper mold plate; 9. Demolding cylinder; 10. Second slide groove; 11. Lower mold plate; 12. Fixing box; 13. Positioning cylinder; 14. Injection base plate; 15. Third slide groove; 16. Second sliding column; 17. Second top plate; 18. Pressing plate; 19. Injection molding machine body; 20. Second lifting cylinder; 21. Buffer ring. Detailed Implementation

[0018] 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.

[0019] Please see Figure 1-4 This utility model provides a technical solution: a protective structure for a multi-station injection molding machine, including an injection seat 1, a cooling seat 2 threadedly fixed to both sides and one end of the injection seat 1, a first sliding column 3 fixedly fixed to the four corners of the upper end of the cooling seat 2, a first top plate 4 fixedly fixedly connected to the upper end of the first sliding column 3, a first lifting cylinder 5 fixedly connected to both sides of the upper end of the first top plate 4, a stamping plate 6 fixedly connected to one end of the first lifting cylinder 5 via a shaft, the stamping plate 6 slidably sleeved at the center of the first sliding column 3, a first sliding groove 7 fixedly opened on both sides of the bottom of the stamping plate 6, an upper template 8 slidably connected to the first sliding groove 7, and a demolding cylinder 9 fixedly connected to one side of the lower end of the first sliding groove 7, the demolding cylinder 9 being fixedly connected to the upper template 8.

[0020] In this embodiment, after the workpiece is injected into the upper end of the injection seat 1, the workpiece, which has been formed to a certain state, is transported to the upper end of the cooling seat 2 for cooling. At this time, the first lifting cylinder 5 drives the stamping plate 6 to slide and lift, and the workpiece is fixed and shaped under constant pressure. This ensures the stability of the workpiece during the cooling process and avoids deformation. After the cooling is completed, the upper mold plate 8 can be driven to slide a short distance by the demolding cylinder 9. At this time, the upper and lower mold plates are laterally misaligned, so that the workpiece can be better separated from the mold plate. Then, the first lifting cylinder 5 drives the stamping plate 6 to rise and demold. This design effectively avoids the workpiece from sticking to the upper and lower mold plates at the same time, which can easily lead to damage to the workpiece during demolding. It can make the workpiece detach from the upper or lower mold plate in advance, resulting in a better demolding effect and a certain degree of protection.

[0021] Specifically, the upper ends of the cooling seat 2 are fixedly connected to the two sides of the second slide groove 10, and the lower template 11 is slidably connected inside the second slide groove 10. The upper end of the injection seat 1 is fixedly connected to the center of the injection base plate 14, and the center of the injection base plate 14 is fixedly provided with a third slide groove 15, which is connected to the second slide groove 10.

[0022] In this embodiment, by connecting the second slide groove 10 and the third slide groove 15, the lower template 11 can be slidably repositioned, which facilitates multi-station repositioning processing.

[0023] Specifically, a fixed box 12 is fixedly connected to one side of the cooling seat 2, a shifting cylinder 13 is fixedly connected inside the fixed box 12, and one end of the fixed box 12 is fixedly connected to the lower template 11.

[0024] In this embodiment, the positioning cylinder 13 can drive the fixed box 12 to slide and extend, so that the fixed box 12 can slide to the upper center of the injection base plate 14 for injection. After the first injection is completed, it can be retracted for stamping and cooling, and the second injection can continue. The positioning is changed in sequence, saving a lot of waiting time and improving work efficiency.

[0025] Specifically, the upper four corners of the injection seat 1 are fixedly connected to the second sliding column 16, the upper end of the second sliding column 16 is fixedly connected to the second top plate 17, and the upper center of the second top plate 17 is fixedly connected to the injection machine body 19.

[0026] In this embodiment, injection molding can be performed by setting up an existing injection molding machine body 19.

[0027] Specifically, a second lifting cylinder 20 is fixedly connected to both sides of the upper end of the second top plate 17. A pressing plate 18 is fixedly connected to one end of the second lifting cylinder 20. The pressing plate 18 is slidably sleeved in the center of the second sliding column 16. A buffer ring 21 is sleeved on the outer surface of the second sliding column 16. The buffer ring 21 is located at the lower end of the pressing plate 18.

[0028] In this embodiment, the second lifting cylinder 20 can lift and lower the pressing plate 18. The injection molding machine body 19 is sleeved at the center of the pressing plate 18. After injection, the second lifting cylinder 20 can lift and lower the pressing plate 18 to perform a certain injection molding of the raw material. After molding, it can be stamped and cooled at the sliding cooling seat 2. This design method uses pre-injection shaping elements, and after shaping, it performs repositioning and stamping cooling. At this time, the second workpiece can be injected. The lower template 11 can use different templates to process different workpieces, which is more flexible. There is no need to wait for cooling time, which saves a lot of time and improves processing efficiency.

[0029] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. Guard structure for a multi-station injection-compression molding machine comprising an injection seat (1), characterized in that: Both sides and one end of the injection seat (1) are fixedly connected with cooling seats (2) in a threaded mode, the upper end of each cooling seat (2) is fixedly connected with a first slide column (3) at four corners, the upper end of the first slide column (3) is fixedly connected with a first top plate (4), the upper end of the first top plate (4) is fixedly connected with a first lifting air cylinder (5) at both sides, one end of the first lifting air cylinder (5) is fixedly connected with a stamping plate (6) through a shaft, the stamping plate (6) is slidably sleeved at the center of the first slide column (3), the bottom of the stamping plate (6) is fixedly provided with a first sliding groove (7) at both sides, the first sliding groove (7) is slidably connected with an upper die plate (8), one side of the lower end of the first sliding groove (7) is fixedly connected with an ejection cylinder (9), and the ejection cylinder (9) is fixedly connected with the upper die plate (8).

2. The protective structure of a multi-station compression molding machine according to claim 1, wherein: Both sides of the upper end of the cooling seat (2) are fixedly connected with a second sliding groove (10), the inside of the second sliding groove (10) is slidably connected with a lower die plate (11), the upper end of the injection seat (1) is fixedly connected with an injection bottom plate (14) at the center, the center of the injection bottom plate (14) is fixedly provided with a third sliding groove (15), and the third sliding groove (15) is in opposite abutment with the second sliding groove (10).

3. The protective structure of a multi-station compression molding machine according to claim 1, wherein: One side of the cooling seat (2) is fixedly connected with a fixed box (12), the inside of the fixed box (12) is fixedly connected with a transposition air cylinder (13), and one end of the fixed box (12) is fixedly connected with the lower die plate (11).

4. The protective structure of a multi-station compression molding machine according to claim 1, wherein: The upper end of the injection seat (1) is fixedly connected with a second slide column (16) at four corners, the upper end of the second slide column (16) is fixedly connected with a second top plate (17), and the upper end of the second top plate (17) is fixedly connected with an injection machine body (19) at the center.

5. The protective structure of a multi-station compression molding machine according to claim 4, wherein: Both sides of the upper end of the second top plate (17) are fixedly connected with a second lifting air cylinder (20), one end of the second lifting air cylinder (20) is fixedly connected with a pressing plate (18), the pressing plate (18) is slidably sleeved at the center of the second slide column (16), a buffer ring (21) is sleeved on the outer surface of the second slide column (16), and the buffer ring (21) is located at the lower end of the pressing plate (18).

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