Automatic demolding device for multi-cavity injection mold

Abstract

The utility model relates to die automatic demolding technical field discloses a kind of multi-cavity injection mold automatic demolding device, including the top of the horizontal support plate a is fixedly connected with three injection plates, the bottom of each injection plate is fixedly connected with push rod a, the bottom of push rod a is fixedly connected with horizontal support plate b, the top of horizontal support plate b is fixedly connected with support rod a, the front bottom of support rod a is fixedly connected with rotating shaft a, the outside rotating connection of rotating shaft a has short pole, the left side fixed connection of short pole has long pole, and the top of the horizontal support plate b is fixedly connected with horizontal support plate c.The utility model discloses, and injection plate edition is ejected from die once demolding, and the mode ejecting force is uniform, balanced, and the ejecting force is big, and using this mode mold is not easy to deform and surface does not leave ejecting mark, and secondary demolding is completely ejected from mold outside mold, and it is convenient to collect.

Description

Technical Field

[0001] This utility model relates to the field of automatic mold demolding technology, and in particular to an automatic demolding device for multi-cavity injection molds. Background Technology

[0002] Multi-cavity injection molds are molds with multiple molding cavities in one mold, which can produce multiple identical or different plastic products at the same time. After production, they are automatically demolded and are widely used in mass production scenarios.

[0003] Existing products have injection molds with automatic cleaning functions. By installing a demolding device in the lower mold base, the mold can be ejected from the lower mold base after the injection mold is formed, thus avoiding manual demolding and making the whole demolding process more convenient.

[0004] Existing technology only installs a demolding device inside the core of the lower mold base, but does not install a demolding device inside the core of the upper mold base. After the mold is formed, when the upper mold base moves relative to the lower mold base, there is a certain probability that the formed product will stick to the core of the upper mold base, which will cause some inconvenience for product demolding. To solve the above problems, an automatic demolding device for multi-cavity injection molds is proposed. Utility Model Content

[0005] To overcome the above shortcomings, this utility model provides an automatic demolding device for multi-cavity injection molds, which aims to improve the problem of demolding stickiness in the prior art.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: The top of the horizontal support plate a is fixedly connected to three injection molded plates, the bottom of each injection molded plate is fixedly connected to a push rod a, the bottom of the push rod a is fixedly connected to a horizontal support plate b, the top of the horizontal support plate b is fixedly connected to a support rod a, the bottom of the front side of the support rod a is fixedly connected to a rotating shaft a, a short rod is rotatably connected to the outside of the rotating shaft a, a long rod is fixedly connected to the left side of the short rod, a limit rod is placed on the top of the long rod, a push rod b is set on the top of the limit rod, the top of the horizontal support plate b is fixedly connected to a horizontal support plate c, the top of the horizontal support plate b is fixedly connected to a limit sleeve, the bottom of the horizontal support plate b is fixedly connected to a piston rod, the bottom of the piston rod is slidably connected to a cylinder, and a support frame is fixedly connected to the front side of the support rod a. As a further description of the above technical solution: An L-shaped support plate is fixedly connected to the bottom right side of the horizontal support plate d, and a motor is fixedly connected to the top of the L-shaped support plate. As a further description of the above technical solution: Two rotating shafts b are fixedly connected to the left side of the motor, and a limit wheel is fixedly connected to the right side of each rotating shaft b. A belt is fixedly connected to the outside of the limit wheel. As a further description of the above technical solution: Three sprockets are fixedly connected to the outside of each of the two rotating shafts b. Four chains are sleeved on the outside of the horizontal support plate a. A collection groove is provided at the bottom of the chain. Four support rods b are fixedly connected to the bottom of the collection groove. The sprockets and chains mesh with each other. As a further description of the above technical solution: The bottom of the horizontal support plate d is fixedly connected to four support rods c, the top of the horizontal support plate d is fixedly connected to three injection molds, the bottom of the horizontal support plate d is fixedly connected to a mold cavity, and the top of each of the three injection plates is fixedly connected to a mold core.

[0007] This utility model has the following beneficial effects: 1. In this utility model, the device is placed on the ground. The air pump piston rod structure drives the two-layer plate structure to move upward. The lower layer of the two-layer plate pushes push rod a, push rod a pushes the injection plate, and the injection plate rises to push the mold for one demolding. The two-layer plate pushes push rod b, and push rod b directly contacts the mold after a period of time, thereby achieving the effect of complete mold demolding.

[0008] 2. In this utility model, there is a motor on the L-shaped support plate. The motor drives the rotating rod, the rotating rod drives the sprocket to rotate, the sprocket drives the chain to rotate, and the mold falls on the top of the chain after the second demolding. The chain carries the mold into the collection groove, thereby realizing the automatic collection function. Attached Figure Description

[0009] Figure 1 This is a three-dimensional schematic diagram of an automatic demolding device for multi-cavity injection molds proposed in this utility model; Figure 2 This is a three-dimensional structural diagram of the secondary demolding device proposed in this utility model; Figure 3 This is a front structural diagram of the automatic demolding device proposed in this utility model; Figure 4 This is a side view of the automatic demolding device; Legend: 1. Horizontal support plate a; 2. Injection plate; 3. Push rod a; 4. Horizontal support plate b; 5. Support rod a; 6. Rotating shaft a; 7. Short rod; 8. Long rod; 9. Limiting rod; 10. Push rod b; 11. Horizontal support plate c; 12. Support frame; 13. Piston rod; 14. Cylinder; 15. Limiting sleeve; 16. Horizontal support plate d; 17. L-shaped support plate; 18. Motor; 19. Rotating shaft b; 20. Limiting wheel; 21. Belt; 22. Sprocket; 23. Chain; 24. Collection groove; 25. Support rod b; 26. Support rod c; 27. Injection molding machine; 28. Mold cavity; 29. ​​Mold core. Detailed Implementation

[0010] 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.

[0011] Reference Figure 1 , Figure 2 In one embodiment of this utility model, three injection plates 2 are fixedly connected to the top of the horizontal support plate a1. The injection plates 2 are moved by the push rod, so that the mold is less likely to produce dents during demolding and the collection is more stable and balanced during demolding. Each injection molding plate 2 is fixedly connected to a push rod a3 at its bottom. A horizontal support plate b4 is fixedly connected to the bottom of the push rod a3. A support rod a5 is fixedly connected to the top of the horizontal support plate b4. A rotating shaft a6 is fixedly connected to the bottom front side of the support rod a5. A short rod 7 is rotatably connected to the outside of the rotating shaft a6. A long rod 8 is fixedly connected to the left side of the short rod 7. A limit rod 9 is placed on the top of the long rod 8 to make the push rod b10 more stable. The push rod b10 is set on the top of the limit rod 9. A horizontal support plate c11 is fixedly connected to the top of the horizontal support plate b4. A limit sleeve 15 is fixedly connected to the top of the horizontal support plate b4. A piston rod 13 is fixedly connected to the bottom of the horizontal support plate b4. A cylinder 14 is slidably connected to the bottom of the piston rod 13. A support frame 12 is fixedly connected to the front side of the support rod a5.

[0012] Reference Figure 3 , Figure 4Two rotating shafts b19 are fixedly connected to the left side of the motor 18. Each rotating shaft b19 has a limit wheel 20 fixedly connected to its right side, and a belt 21 is fixedly connected to the outside of the limit wheel 20. The lower rotating shaft drives the belt 21 to rotate, and the belt 21 drives the upper rotating shaft to rotate, ensuring that the rotation speeds of the upper and lower shafts are consistent. Three sprockets 22 are fixedly connected to the outside of each of the two rotating shafts b19. Four chains 23 are fitted around the outside of the horizontal support plate a1. A collection groove 24 is provided at the bottom of each chain 23, and four support rods b25 are fixedly connected to the bottom of the collection groove 24. The sprockets 22 and chains 23 mesh with each other. When the mold falls onto the chain 23, the synchronously moving chain 23 pulls the mold into the collection groove 24, facilitating the next step of injection molding and demolding.

[0013] Reference Figure 1 , Figure 3 , Figure 4 An L-shaped support plate 17 is fixedly connected to the bottom right side of the horizontal support plate d16, and a motor 18 is fixedly connected to the top of the L-shaped support plate 17. Four support rods c26 are fixedly connected to the bottom of the horizontal support plate d16, three injection molding machines 27 are fixedly connected to the top of the horizontal support plate d16, a mold cavity 28 is fixedly connected to the bottom of the horizontal support plate d16, and a mold core 29 is fixedly connected to the top of each of the three injection molding plates 2.

[0014] Working principle: First, place the device on the ground. The cylinder 14 at the bottom of the device pushes the sliding piston rod 13. The piston rod 13 drives the horizontal support plate b4 at the top. There is a push rod a3 at the top of the horizontal support plate b4. The horizontal support plate b4 drives the push rod a3 to push the injection plate 2. This is the first demolding.

[0015] When push rod a3 moves upward, the horizontal support plate b4 pushes the support rod a5 upward. The support rod a5 drives the short rod 7 of the rotating shaft a6 to move upward. The short rod 7 is shorter than the limiting rod 9, so push rod b10 moves faster than push rod a3. The limiting sleeve 15 has a groove inside, so the limiting rod 9 can only move up and down. The limiting sleeve 15 and the limiting rod 9 restrict push rod b10. Under the control of the limiting sleeve 15 and the limiting rod 9, push rod b10 moves upward at a stable and faster rate. When push rod b10 contacts the mold, only push rod b10 pushes the mold, performing a secondary demolding.

[0016] The left side of the motor 18 is connected to the rotating shaft b19. At this time, the motor 18 transmits power to the rotating shaft b19. The rotating shaft b19 is fitted with a limit wheel 20, which moves with the rotating shaft b19. The limit wheel 20 is fitted with a belt 21, which drives the upper part of the rotating shaft b19. The rotating shaft b19 drives the sprocket 22 to rotate. The speed of each sprocket 22 is exactly the same. The sprocket 22 drives the chain 23 to rotate. The speed of the chain 23 is also exactly the same. After the mold falls on the chain 23, it falls into the collection trough 24 at the same speed, completing the automatic collection.

[0017] 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. An automatic demolding device for a multi-cavity injection mold, comprising a horizontal support plate a (1) and a horizontal support plate d (16), characterized in that: The top of the horizontal support plate a (1) is fixedly connected to three injection molded plates (2), and the bottom of each injection molded plate (2) is fixedly connected to a push rod a (3). The bottom of the push rod a (3) is fixedly connected to a horizontal support plate b (4), and the top of the horizontal support plate b (4) is fixedly connected to a support rod a (5). The bottom of the front side of the support rod a (5) is fixedly connected to a rotating shaft a (6), and a short rod (7) is rotatably connected to the outside of the rotating shaft a (6). A long rod (8) is fixedly connected to the left side of the short rod (7). A limiting rod (9) is placed at the top of the long rod (8), and a push rod b (10) is provided at the top of the limiting rod (9). A horizontal support plate c (11) is fixedly connected to the top of the horizontal support plate b (4). A limiting sleeve (15) is fixedly connected to the top of the horizontal support plate b (4). A piston rod (13) is fixedly connected to the bottom of the horizontal support plate b (4). A cylinder (14) is slidably connected to the bottom of the piston rod (13). A support frame (12) is fixedly connected to the front side of the support rod a (5).

2. The automatic demolding device for a multi-cavity injection mold according to claim 1, characterized in that: An L-shaped support plate (17) is fixedly connected to the bottom right side of the horizontal support plate d (16), and a motor (18) is fixedly connected to the top of the L-shaped support plate (17).

3. The automatic demolding device for a multi-cavity injection mold according to claim 2, characterized in that: Two rotating shafts b (19) are fixedly connected to the left side of the motor (18), and limit wheels (20) are fixedly connected to the right side of each rotating shaft b (19). A belt (21) is fixedly connected to the outside of each limit wheel (20).

4. The automatic demolding device for a multi-cavity injection mold according to claim 3, characterized in that: Three sprockets (22) are fixedly connected to the outside of the rotating shaft b (19). Four chains (23) are sleeved on the outside of the horizontal support plate a (1). A collection groove (24) is provided at the bottom of the chain (23). Four support rods b (25) are fixedly connected to the bottom of the collection groove (24). The sprockets (22) and the chains (23) mesh with each other.

5. The automatic demolding device for a multi-cavity injection mold according to claim 1, characterized in that: The bottom of the horizontal support plate d (16) is fixedly connected to four support rods c (26), the top of the horizontal support plate d (16) is fixedly connected to three injection molds (27), the bottom of the horizontal support plate d (16) is fixedly connected to a mold cavity (28), and the top of the three injection plates (2) is fixedly connected to a mold core (29).

Images