Injection molding part stub bar cutting device

Abstract

The utility model discloses an injection molded part stub bar cutting device which comprises a base, a fixing plate, a lifting plate and a U-shaped plate, the fixing plate is installed at one end of the top of the base, the U-shaped plate is installed at the end, away from the fixing plate, of the top of the base, and a control panel is installed at the bottom of the end, away from the U-shaped plate, of the fixing plate. According to the utility model, the mounting plate, the stepping motor, the rotating shaft and the two groups of L-shaped supporting plates are arranged, and when in use, the stepping motor drives the mounting plate to rotate by 180 degrees each time through the rotating shaft, so that one group of L-shaped supporting plates can be rotated to the lower part of a cutter, and the other group of L-shaped supporting plates can be moved out from the lower part of the cutter; when the stub bars of one set of injection molding parts are cut off, the other set of injection molding parts are fixed, or the other set of injection molding parts with the stub bars cut off are taken down from the device, and therefore the multiple sets of injection molding parts can be machined at the same time, and the cutting-off efficiency can be improved easily.

Description

Technical Field

[0001] This utility model relates to the technical field of injection molding equipment, specifically to an injection molding material head cutting device. Background Technology

[0002] Injection molded parts refer to a general term for various injection molded products produced by injection molding machines. They are mainly made of materials such as polyethylene or polypropylene with the addition of various organic solvents. During the injection molding process, excess material is usually generated at the injection port, which needs to be removed by a cutting device.

[0003] The invention patent with announcement number CN105856513A discloses an injection molding part sprue removal device. This patent uses the cooperation of steps and pressure plates to make the injection molding part firmly clamped, the sprue removed thoroughly, and the product qualification rate high. At the same time, the cooperation of nuts and screws can adjust the distance between the first and second clamping seats, which is convenient for clamping injection molding parts of different sizes. It has a wide range of applications and reduces production costs.

[0004] However, in practice, this patent can only fix one set of injection molded parts on the device. When the sprue on one set of injection molded parts is cut off, it cannot fix another set of injection molded parts at the same time, or remove another set of injection molded parts with the sprue cut off from the device. This makes it inconvenient to process multiple sets of injection molded parts at the same time, which greatly reduces the cutting efficiency of the device. Therefore, the development of a new injection molded part sprue cutting device has attracted more and more attention from researchers. Utility Model Content

[0005] The purpose of this invention is to provide a device for cutting off the sprue of injection molded parts, so as to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a device for cutting off the sprue of injection molded parts, comprising a base, a fixed plate, a lifting plate, and a U-shaped plate. A fixed plate is installed at one end of the top of the base, and a U-shaped plate is installed at the end of the top of the base away from the fixed plate. A control panel is installed at the bottom of the fixed plate at the end away from the U-shaped plate, and a top plate is installed on the top of the fixed plate. A first electric cylinder is installed on the top of the top plate. A stepper motor is installed at the bottom of the U-shaped plate, and a rotating shaft is installed at the output end of the stepper motor. The rotating shaft passes through the U-shaped plate, and a mounting plate is installed on the top of the rotating shaft. The mounting plate has two ends... Each component is equipped with a first sliding assembly on its top, and a lifting plate is slidably mounted on the end of the first sliding assembly away from the mounting plate. A second electric cylinder is mounted on the top end of the lifting plate near the mounting plate, and a second sliding assembly is mounted on the top end of the lifting plate away from the second electric cylinder. An L-shaped support plate is slidably mounted on the top of each second sliding assembly, and a third electric cylinder is mounted on both sides of the top of the L-shaped support plate. The output end of each second electric cylinder is connected to the L-shaped support plate. The output end of the control panel is electrically connected to the input ends of the first electric cylinder, the stepper motor, the second electric cylinder, and the third electric cylinder respectively via wires.

[0007] Preferably, the output end of the first electric cylinder passes through the top plate, and a cutting tool is installed at the output end of the first electric cylinder.

[0008] Preferably, the output end of each of the third electric cylinders is equipped with a clamping plate.

[0009] Preferably, a fixing hole is provided at the top end of the U-shaped plate near the fixing plate.

[0010] Preferably, the bottom of each lifting plate is equipped with a fixed support rod.

[0011] Preferably, a base plate is installed at the bottom of both ends of the mounting plate, and a return spring is installed at the top of each base plate. The end of the return spring away from the base plate is connected to the lifting plate.

[0012] Preferably, the inner side of the clamps is provided with anti-slip texture.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] 1. This injection molding part sprue cutting device is equipped with a mounting plate, a stepper motor, and a rotating shaft, and has two sets of L-shaped support plates. In use, the stepper motor drives the mounting plate to rotate 180 degrees each time through the rotating shaft. This allows one set of L-shaped support plates to be rotated under the cutter, and the other set of L-shaped support plates to be moved out from under the cutter. This allows one set of injection molding parts to be cut off at the same time, while another set of injection molding parts is fixed, or another set of injection molding parts with the sprue cut off can be removed from the device. This allows multiple sets of injection molding parts to be processed at the same time, which helps to improve the cutting efficiency.

[0015] 2. The injection molding part sprue cutting device is equipped with a fixed support rod, a return spring and a base plate. When cutting the sprue, the cutter presses on the injection molding part sprue, and the lifting plate moves downward under force, which allows the fixed support rod to be inserted into the fixed insertion hole. The fixed support rod can support the lifting plate and limit the lifting plate, which can prevent the lifting plate from continuing to rotate during the sprue cutting process, thus improving the stability of the device.

[0016] 3. The injection molding part cutting device is equipped with a third electric cylinder, a clamping plate, an L-shaped support plate, a second sliding assembly, and a second electric cylinder. In use, the third electric cylinder pushes the clamping plate to move, which can hold the injection molding part through the two sets of clamping plates, and the second electric cylinder pushes or pulls the L-shaped support plate to move, which can adjust the position of the injection molding part, thereby adjusting the cutting position. Attached Figure Description

[0017] Figure 1 This is a schematic front sectional view of the present invention;

[0018] Figure 2 This is a top view of the L-shaped tray of this utility model;

[0019] Figure 3 This is a partial structural schematic diagram of the present invention.

[0020] In the diagram: 1. Base; 2. Fixing plate; 3. Control panel; 4. Fixing socket; 5. Fixing support rod; 6. Lifting plate; 7. Cutting tool; 8. Top plate; 9. First electric cylinder; 10. U-shaped plate; 11. Mounting plate; 12. Stepper motor; 13. Rotating shaft; 14. First sliding assembly; 15. Return spring; 16. Base plate; 17. Second electric cylinder; 18. Third electric cylinder; 19. Clamping plate; 20. L-shaped support plate; 21. Second sliding assembly. Detailed Implementation

[0021] 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.

[0022] Please see Figure 1-3This utility model provides an embodiment of a sprue trimming device for injection molded parts, comprising a base 1, a fixing plate 2, a lifting plate 6, and a U-shaped plate 10. The fixing plate 2 is mounted on one end of the top of the base 1, and the U-shaped plate 10 is mounted on the end of the top of the base 1 away from the fixing plate 2. A control panel 3 is mounted on the bottom of the fixing plate 2 at the end away from the U-shaped plate 10, and a top plate 8 is mounted on the top of the fixing plate 2. A first electric cylinder 9 (model J64RT2UNIVER) is mounted on the top of the top plate 8. A stepper motor 12 (model PH533HG1-NA) is mounted on the bottom of the U-shaped plate 10, and a rotating shaft 13 is mounted on the output end of the stepper motor 12. The rotating shaft 13 passes through the U-shaped plate 10, and a mounting plate 11 is mounted on the top of the rotating shaft 13. First sliding components 14 are mounted on the tops of both ends of the mounting plate 11, and the ends of the first sliding components 14 away from the mounting plate 11 are slidably mounted. The device is equipped with a lifting plate 6. A second electric cylinder 17 is installed at the top end of the lifting plate 6 near the mounting plate 11. The model of the second electric cylinder 17 can be J64RT2UNIVER. A second sliding assembly 21 is installed at the top end of the lifting plate 6 away from the second electric cylinder 17. An L-shaped support plate 20 is slidably installed on the top of the second sliding assembly 21. A third electric cylinder 18 is installed on both sides of the top of the L-shaped support plate 20. The model of the third electric cylinder 18 can be J64RT2UNIVER. The output end of the second electric cylinder 17 is connected to the L-shaped support plate 20. The output end of the control panel 3 is electrically connected to the input ends of the first electric cylinder 9, the stepper motor 12, the second electric cylinder 17, and the third electric cylinder 18 through wires. The output end of the first electric cylinder 9 passes through the top plate 8, and a cutter 7 is installed at the output end of the first electric cylinder 9. The first electric cylinder 9 pushes the cutter 7 downward to cut off the sprue of the injection molded part.

[0023] like Figure 1-3 As shown, each output end of the third electric cylinder 18 is equipped with a clamping plate 19. The inner side of the clamping plate 19 is provided with anti-slip texture. In use, the injection molded part can be placed on the top of the L-shaped pallet 20, and then the two sets of third electric cylinders 18 can be started through the control panel 3, so that the third electric cylinders 18 push the clamping plate 19 to move, and the injection molded part can be clamped by the two sets of clamping plates 19, and the injection molded part can be firmly fixed on the L-shaped pallet 20.

[0024] like Figure 1 As shown, a fixing hole 4 is provided at the top of the U-shaped plate 10 near the fixed plate 2. Fixed support rods 5 are installed at the bottom of the lifting plate 6. When the lifting plate 6 is subjected to force, it moves downward, compresses the return spring 15, and moves together with the fixed support rods 5, so that the fixed support rods 5 can be inserted into the fixing hole 4. The fixed support rods 5 can support the lifting plate 6 and limit the lifting plate 6, which can prevent the lifting plate 6 from continuing to rotate during the cutting of the material head, thus improving the stability of the device.

[0025] like Figure 1 As shown, base plates 16 are installed at the bottom of both ends of the mounting plate 11, and return springs 15 are installed at the top of the base plates 16. The end of the return spring 15 away from the base plate 16 is connected to the lifting plate 6. After the cutting is completed, the elasticity of the return spring 15 pushes the lifting plate 6 to move upward and reset. The lifting plate 6 drives the fixed support rod 5 to move upward together. The fixed support rod 5 can be removed from the fixed insertion hole 4, thereby releasing the limitation of the fixed support rod 5 on the lifting plate 6, so that the lifting plate 6 can rotate.

[0026] Working principle:

[0027] When in use, the injection molded part can be placed on the top of the L-shaped pallet 20, and then the two sets of third electric cylinders 18 can be activated through the control panel 3, so that the third electric cylinders 18 push the clamping plate 19 to move, and the injection molded part can be clamped by the two sets of clamping plates 19, and the injection molded part can be firmly fixed on the L-shaped pallet 20.

[0028] The operator can start the stepper motor 12 through the control panel 3, so that the stepper motor 12 drives the mounting plate 11 to rotate 180 degrees each time through the rotating shaft 13. This can rotate the injection molded part that needs to have its sprue cut to the underside of the cutter 7, and move another set of L-shaped support plates 20 out from under the cutter 7. This allows the other set of injection molded parts to be fixed at the same time while the sprue of one set of injection molded parts is being cut, or the other set of injection molded parts with the sprue cut off can be removed from the device.

[0029] When cutting off the sprue, the operator can activate the second electric cylinder 17 through the control panel 3, so that the second electric cylinder 17 pushes or pulls the L-shaped support plate 20 to move, thereby adjusting the position of the injection molded part and thus adjusting the cutting position.

[0030] After adjustment, the operator can start the first electric cylinder 9 through the control panel 3, so that the first electric cylinder 9 pushes the cutter 7 downward, so that the cutter 7 presses on the injection molded part head, the lifting plate 6 moves downward under force, the lifting plate 6 compresses the return spring 15, and the lifting plate 6 drives the fixed support rod 5 to move together, so that the fixed support rod 5 can be inserted into the fixed insertion hole 4. The fixed support rod 5 can support the lifting plate 6 and limit the lifting plate 6, which can prevent the lifting plate 6 from continuing to rotate during the cutting of the material head, which helps to improve the stability of the device. As the cutter 7 continues to move downward, the injection molded part head can be cut off.

[0031] After the excision is completed, the staff can first start the first electric cylinder 9 through the control panel 3, so that the first electric cylinder 9 pulls the cutter 7 upward and moves the cutter 7 away from the L-shaped support plate 20. At this time, the elastic action of the return spring 15 pushes the lifting plate 6 upward to reset. The lifting plate 6 drives the fixed support rod 5 to move upward together. The fixed support rod 5 can be removed from the fixed insertion hole 4, which releases the limitation of the fixed support rod 5 on the lifting plate 6, so that the lifting plate 6 can rotate.

[0032] Then, the operator can start the stepper motor 12 through the control panel 3, so that the stepper motor 12 drives the mounting plate 11 to rotate 180 degrees through the rotating shaft 13, so that the injection molded part after the material head is cut off can be rotated out from under the cutter 7, thus making it easier to remove the injection molded part.

[0033] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A device for cutting off the sprue of injection molded parts, comprising a base (1), a fixing plate (2), a lifting plate (6), and a U-shaped plate (10), characterized in that: A fixing plate (2) is installed at one end of the top of the base (1), and a U-shaped plate (10) is installed at the end of the top of the base (1) away from the fixing plate (2). A control panel (3) is installed at the bottom of the fixing plate (2) away from the U-shaped plate (10), and a top plate (8) is installed on the top of the fixing plate (2). A first electric cylinder (9) is installed on the top of the top plate (8). A stepper motor (12) is installed at the bottom of the U-shaped plate (10), and a rotating shaft (13) is installed at the output end of the stepper motor (12). The rotating shaft (13) passes through the U-shaped plate (10), and a mounting plate (11) is installed on the top of the rotating shaft (13). A first sliding component (14) is installed on the top of both ends of the mounting plate (11), and the first sliding component (14) A lifting plate (6) is slidably installed at the end away from the mounting plate (11). A second electric cylinder (17) is installed at the top end of the lifting plate (6) near the mounting plate (11), and a second sliding assembly (21) is installed at the top end of the lifting plate (6) away from the second electric cylinder (17). An L-shaped support plate (20) is slidably installed on the top of the second sliding assembly (21), and a third electric cylinder (18) is installed on both sides of the top of the L-shaped support plate (20). The output end of the second electric cylinder (17) is connected to the L-shaped support plate (20). The output end of the control panel (3) is electrically connected to the input end of the first electric cylinder (9), the stepper motor (12), the second electric cylinder (17), and the third electric cylinder (18) respectively through wires.

2. The injection molding part sprue cutting device according to claim 1, characterized in that: The output end of the first electric cylinder (9) passes through the top plate (8), and a cutting tool (7) is installed at the output end of the first electric cylinder (9).

3. The injection molding part sprue cutting device according to claim 1, characterized in that: Each of the third electric cylinders (18) has a clamp plate (19) installed at its output end.

4. The injection molding part sprue cutting device according to claim 1, characterized in that: The top of the U-shaped plate (10) near the fixed plate (2) is provided with a fixing hole (4).

5. The injection molding part sprue cutting device according to claim 1, characterized in that: The bottom of each lifting plate (6) is equipped with a fixed support rod (5).

6. The injection molding part sprue cutting device according to claim 1, characterized in that: The bottom of both ends of the mounting plate (11) is equipped with a base plate (16), and the top of the base plate (16) is equipped with a return spring (15). The end of the return spring (15) away from the base plate (16) is connected to the lifting plate (6).

7. The injection molding part sprue cutting device according to claim 3, characterized in that: The inner side of each clamp (19) is provided with anti-slip texture.

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