Water gap cutting machine

Abstract

The utility model relates to the technical field of injection molding water gap cutting, and discloses a water gap cutting machine which comprises a bottom plate and a waste water gap, the upper surface of the bottom plate is fixedly connected with a supporting back plate, the upper surface of the bottom plate is fixedly connected with a bottom die, the upper surface of the bottom die is provided with a product body, and one side of the outer wall of the supporting back plate is fixedly connected with a guide rail. A sliding block seat is slidably connected to the outer wall of the guide rail, a knife rest is fixedly connected to one side of the outer wall of the sliding block seat, a first blade is fixedly connected to the interior of the knife rest, a downward pressing assembly is arranged on one side of the outer wall of the supporting back plate and used for driving the knife rest to move downwards, and the downward pressing assembly comprises a connecting piece; and one side of the outer wall of the connecting piece is fixedly connected to one side of the outer wall of the supporting back plate. According to the semi-automatic water gap cutting device, semi-automatic cutting of the waste water gap is achieved, the manufacturing cost of equipment is effectively reduced, the situation that the unit price of a product is too high due to apportionment of high equipment cost is avoided, and meanwhile the purchase cost pressure of customers is relieved.

Description

Technical Field

[0001] This utility model relates to the field of injection molding gate cutting technology, and in particular to a gate cutting machine. Background Technology

[0002] In the injection molding process of plastic products, the mold usually has multiple cavities. In order for the plastic melt to fill the mold cavity smoothly, the mold is designed with a runner system. The plastic melt enters the cavity through the runner, and the sprue is the part that connects the runner to the product. After the product is molded, this part of the excess material needs to be cut off so that the product has a complete and accurate shape and size.

[0003] In today's production environment, equipment for cutting sprues in plastic products is becoming increasingly sophisticated, especially fully automated sprue cutting machines. These machines use a vision inspection system to accurately locate the sprue position on the product, and then use a blade to cut the sprue according to a set path and depth. During the process, the cutting parameters are continuously monitored to ensure that the cutting action is stable, accurate, and efficient in completing the sprue cutting task.

[0004] However, existing fully automated sprue cutting machines have some problems in application and production. From a cost perspective, the initial equipment purchase cost of fully automated sprue cutting machines is high. For small order volumes, the amortized cost of the equipment will significantly increase the unit cost of the product. Moreover, due to the complexity of fully automated technology, the maintenance cost when the equipment fails is also high, including the cost of replacing parts and downtime losses during maintenance. At the same time, for customers, the higher product price will increase their procurement costs and reduce their willingness to purchase. Utility Model Content

[0005] To overcome the above shortcomings, this utility model provides a sprue cutting machine, which aims to improve the problem that existing fully automated sprue cutting machines, when dealing with small order volumes, significantly increase the unit cost of the product due to the increased equipment cost and the resulting decrease in customer willingness to purchase.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a sprue cutting machine, comprising a base plate and a waste sprue, a supporting back plate fixedly connected to the upper surface of the base plate, a bottom mold fixedly connected to the upper surface of the base plate, a product body disposed on the upper surface of the bottom mold, a guide rail fixedly connected to one side of the outer wall of the supporting back plate, a slider seat slidably connected to the outer wall of the guide rail, a blade holder fixedly connected to one side of the outer wall of the slider seat, a blade fixedly connected inside the blade holder, a pressing component disposed on one side of the outer wall of the supporting back plate, the pressing component being used to drive the blade holder downward, the pressing component including a connector, one side of the outer wall of the connector fixedly connected to one side of the outer wall of the supporting back plate, a handle rotatably connected inside the connector, a connecting auxiliary device rotatably connected inside the handle, a connecting rod rotatably connected inside the connecting auxiliary device, a sliding cylinder fixedly connected to one side of the outer wall of the connector, and the outer wall of the connecting rod slidably connected to the inner wall of the sliding cylinder.

[0007] Furthermore, a nut is fixedly connected to the upper surface of the tool holder, and the inner wall of the nut is threadedly connected to the outer wall of the connecting rod.

[0008] Furthermore, a limiting post is fixedly connected to the lower surface of the slider seat, and a rubber pad is fixedly connected to the lower surface of the limiting post.

[0009] Furthermore, the rubber pad can cooperate with the limiting post to prevent the blade inside the tool holder from descending excessively.

[0010] Furthermore, the slider seat is provided with a wear-resistant block inside, which can make the slider seat move more smoothly on the guide rail.

[0011] Furthermore, the bottom mold has a connecting hole inside, which can be used with bolts to facilitate the replacement of the bottom mold.

[0012] Furthermore, a second blade is fixedly connected inside the bottom mold, and a slot is opened inside the bottom plate.

[0013] Furthermore, a mold foot is fixedly connected to the lower surface of the base plate, and a rubber column is fixedly connected to the lower surface of the tool holder.

[0014] This utility model has the following beneficial effects:

[0015] 1. In this utility model, by rotating the handle, the downward pressing component drives the blade holder to move downward to perform the sprue cutting operation. Then, through the cooperation of the first blade inside the blade holder and the second blade inside the bottom mold, the waste sprue can be semi-automatically removed, realizing the separation of the product body from the waste sprue. Compared with a fully automated sprue cutting machine, the reliance on high-precision parts and complex processes in the manufacturing process is reduced, thereby reducing the manufacturing cost of the equipment. This is especially important for small order volumes, avoiding the high cost of equipment from being spread to the product unit price, and at the same time reducing the pressure on the customer's procurement costs.

[0016] 2. In this utility model, the limiting post and rubber pad below the slider seat can effectively prevent the blade from descending excessively when the tool holder descends to a certain extent, thus avoiding damage to the product or equipment and extending the service life of the equipment. The wear-resistant block inside the slider seat makes the slider seat move more smoothly on the guide rail, reducing friction and ensuring the stability and smoothness of the tool holder's descent. The connecting hole inside the bottom mold allows for more convenient and stable installation of the bottom mold on the base plate, and also facilitates the replacement of the bottom mold according to different product requirements, improving the versatility and flexibility of the equipment. Attached Figure Description

[0017] Figure 1 This is a three-dimensional structural diagram of a water-cutting machine proposed in this utility model;

[0018] Figure 2 This is a schematic diagram of the handle portion of a water-cutting machine proposed in this utility model;

[0019] Figure 3 This is a schematic diagram of the slider seat structure of a water-cutting machine proposed in this utility model;

[0020] Figure 4 This is a schematic diagram of the bottom mold part of a sprue cutting machine proposed in this utility model.

[0021] Legend:

[0022] 1. Base plate; 2. Support back plate; 3. Tool holder; 4. Guide rail; 5. Wear-resistant block; 6. Slider seat; 7. Bottom mold; 8. Connector; 9. Handle; 10. Connecting auxiliary device; 11. Connecting rod; 12. Rubber column; 13. Blade one; 14. Nut; 15. Rubber pad; 16. Limiting post; 17. Slide cylinder; 18. Connecting hole; 19. Blade two; 20. Product body; 21. Waste sprue; 22. Groove; 23. Mold foot. Detailed Implementation

[0023] 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.

[0024] Reference Figure 1 - Figure 4 This utility model provides an embodiment of a sprue cutting machine, comprising a base plate 1 and a waste sprue 21. A support back plate 2 is fixedly connected to the upper surface of the base plate 1, and a bottom mold 7 is fixedly connected to the upper surface of the base plate 1. A product body 20 is disposed on the upper surface of the bottom mold 7. Before the waste sprue 21 cutting process, the operator first places the product with the injection-molded part on the corresponding bottom mold 7, ensuring that the waste sprue 21 is accurately located below the cutter holder 3. At this time, the product is in a state to be cut. A guide rail 4 is fixedly connected to one side of the outer wall of the support back plate 2. 4. A slider seat 6 is slidably connected to the outer wall. A blade holder 3 is fixedly connected to one side of the outer wall of the slider seat 6. A blade 13 is fixedly connected inside the blade holder 3. To move the blade holder 3 and achieve the cutting action, a pressing component is required. A pressing component is provided on one side of the outer wall of the support back plate 2. The pressing component is used to drive the blade holder 3 to move downward. The pressing component includes a connector 8. One side of the connector 8 is fixedly connected to one side of the outer wall of the support back plate 2. A handle 9 is rotatably connected inside the connector 8. After the operator has completed the preliminary preparations for product placement, the next step is crucial. Then, the operator grasps handle 9 and rotates it. Handle 9 rotates around its connection point with connector 8, thereby driving the connecting auxiliary device 10, which is rotatably connected to it, to move together. Connecting auxiliary device 10 has a connecting rod 11 rotatably connected inside. A slide cylinder 17 is fixedly connected to one side of the outer wall of connector 8. The outer wall of connecting rod 11 is slidably connected to the inner wall of slide cylinder 17. Through the rotation of connecting auxiliary device 10 and connecting rod 11, when connecting auxiliary device 10 rotates, it will drive connecting rod 11 to slide inside slide cylinder 17. Nut 14 is fixedly connected to the upper surface of tool holder 3. The inner wall of nut 14 is threaded to the outer wall of connecting rod 11. With this connection structure and the above-mentioned series of transmissions, the tool holder 3 below it can be driven to move downward. At this time, the sliding setting of slider seat 6 and guide rail 4 effectively ensures the stability of tool holder 3 during movement and avoids tool holder 3 offset from affecting cutting accuracy. When tool holder 3 moves down to a certain extent, the blade 13 inside tool holder 3 and the blade 29 inside bottom mold 7 cooperate with each other to cut the waste sprue 21 between the two, and successfully complete the waste separation operation.

[0025] Reference Figure 2 - Figure 4The lower surface of the base plate 1 is fixedly connected to the mold foot 23, and the lower surface of the slider seat 6 is fixedly connected to the limit post 16. A rubber pad 15 is fixedly connected to the lower surface of the limit post 16. This structure plays a crucial role in the entire operation of the equipment. When the tool holder 3 descends to a certain extent, the rubber pad 15 contacts the surface of the base plate 1, effectively preventing the blade 13 from descending excessively and avoiding damage to the product or equipment. The rubber pad 15 cooperates with the limit post 16 to prevent the blade 13 inside the tool holder 3 from descending excessively. The slider seat 6 is equipped with a wear-resistant block 5. The wear-resistant block 5 is significant; it allows the slider seat 6 to move more smoothly on the guide rail 4, reducing friction and ensuring the blade... The stability and smoothness of the downward movement of the tool holder 3 are ensured by the fact that the tool holder 3 moves downward along the guide rail 4 under the drive of the slider seat 6. The bottom mold 7 has a connecting hole 18 inside. It is worth mentioning that the connecting hole 18 has an important purpose. The bottom mold 7 can be stably installed on the base plate 1 by engaging with bolts through the connecting hole 18 inside. The connecting hole 18 can be engaged with bolts to facilitate the replacement of the bottom mold 7. The blade 19 is fixedly connected inside the bottom mold 7. The base plate 1 has a groove 22 inside. The rubber column 12 is fixedly connected to the lower surface of the tool holder 3. These different components each perform their respective functions and work together to ensure that the entire equipment can accurately and stably complete tasks such as cutting waste sprue 21.

[0026] Working principle: When using the device, the operator first places the product with the injection-molded part on the corresponding bottom mold 7, ensuring that the waste sprue 21 is accurately located below the cutter holder 3. At this time, the product is in the state of waiting to be cut. Then, the operator holds the handle 9 and rotates it. The handle 9 will rotate around its connection point with the connector 8, thereby driving the connecting auxiliary device 10, which is rotated with it, to move together. Through the rotation setting of the connecting auxiliary device 10 and the connecting rod 11, when the connecting auxiliary device 10 rotates, it will drive the connecting rod 11 to slide inside the slide cylinder 17, thereby... It can drive the blade holder 3 below it to move downward. At this time, the sliding setting of the slider seat 6 and the guide rail 4 effectively ensures the stability of the blade holder 3 during movement. When the blade holder 3 moves down to a certain extent, the blade 13 inside the blade holder 3 and the blade 29 inside the bottom mold 7 cooperate with each other to cut the waste sprue 21 between them. The waste generated by cutting can be discharged through the groove 22, thereby completing the sprue cutting operation of the plastic product, separating the product body 20 from the waste sprue 21, and obtaining a complete product, which meets the production needs.

[0027] The bottom mold 7, through its internal connecting hole 18, can be stably installed on the base plate 1 by bolts. The tool holder 3 moves downward along the guide rail 4 under the drive of the slider seat 6. At the same time, the wear-resistant block 5 set inside the slider seat 6 can make the movement of the slider seat 6 on the guide rail 4 smoother, reduce friction, and ensure the stability and smoothness of the downward movement of the tool holder 3. The limiting post 16 and rubber pad 15 set below the slider seat 6 play a limiting role. When the tool holder 3 moves down to a certain extent, the rubber pad 15 will contact the surface of the base plate 1, effectively preventing the blade 13 from moving down too far and avoiding damage to the product or equipment.

[0028] 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 sprue cutting machine, comprising a base plate (1) and a waste sprue (21), characterized in that: A support back plate (2) is fixedly connected to the upper surface of the base plate (1), a bottom mold (7) is fixedly connected to the upper surface of the base plate (1), a product body (20) is provided on the upper surface of the bottom mold (7), a guide rail (4) is fixedly connected to one side of the outer wall of the support back plate (2), a slider seat (6) is slidably connected to the outer wall of the guide rail (4), a knife holder (3) is fixedly connected to one side of the outer wall of the slider seat (6), a blade (13) is fixedly connected inside the knife holder (3), and a pressing component is provided on one side of the outer wall of the support back plate (2). The pressing component is used to drive the knife holder (3) to move downward, thereby completing the sprue cutting operation of the plastic product. The pressing assembly includes a connector (8), one side of the outer wall of the connector (8) is fixedly connected to one side of the outer wall of the support back plate (2), a handle (9) is rotatably connected inside the connector (8), a connecting aid (10) is rotatably connected inside the handle (9), a connecting rod (11) is rotatably connected inside the connecting aid (10), a slide cylinder (17) is fixedly connected to one side of the outer wall of the connector (8), and the outer wall of the connecting rod (11) is slidably connected to the inner wall of the slide cylinder (17).

2. The water-cutting machine according to claim 1, characterized in that: A nut (14) is fixedly connected to the upper surface of the tool holder (3), and the inner wall of the nut (14) is threadedly connected to the outer wall of the connecting rod (11).

3. The water-cutting machine according to claim 1, characterized in that: The lower surface of the slider seat (6) is fixedly connected to a limiting post (16), and a rubber pad (15) is fixedly connected to the lower surface of the limiting post (16).

4. A water-cutting machine according to claim 3, characterized in that: The rubber pad (15) can cooperate with the limiting post (16) to prevent the blade (13) inside the blade holder (3) from descending excessively.

5. A water-cutting machine according to claim 1, characterized in that: The slider seat (6) is provided with a wear-resistant block (5) inside, which can make the slider seat (6) move more smoothly on the guide rail (4).

6. A water-cutting machine according to claim 1, characterized in that: The bottom mold (7) has a connecting hole (18) inside, which can be used with bolts to facilitate the replacement of the bottom mold (7).

7. A sprue cutting machine according to claim 1, characterized in that: The bottom mold (7) has a blade (19) fixedly connected inside, and the bottom plate (1) has a slot (22) inside.

8. A water-cutting machine according to claim 1, characterized in that: The bottom plate (1) is fixedly connected to the mold foot (23), and the bottom surface of the tool holder (3) is fixedly connected to the rubber column (12).

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