A hot knife for cutting off sprues from injection molded products

Abstract

The utility model belongs to hot cutting knife technical field, concretely relates to a hot cutting knife for injection moulded product shearing sprue, including mounting bracket, the upper end of mounting bracket is contacted with connecting plate, the upper end fixedly connected with connecting block of connecting plate, the upper end fixedly connected with fixed plate of connecting block, be provided with adjusting mechanism on mounting bracket, be provided with rotating mechanism on fixed plate, be provided with pneumatic hot cutting knife main part on rotating mechanism. The utility model discloses through design screw rod, handle, connecting sleeve, annular groove, limit block and thread sleeve etc. component, the screw rod is rotated and thread sleeve and occurs thread movement, and the threaded sleeve moves upwards and drives pneumatic hot cutting knife main part etc. component to move upwards to the specified position, and then makes pneumatic hot cutting knife main part obtain height adjustment, makes the device adjustable to the use of different height.

Description

Technical Field

[0001] This utility model relates to the field of hot cutting blade technology, specifically a hot cutting blade for shearing gates in injection molded products. Background Technology

[0002] A hot cutter is a tool specifically designed for shearing gates in injection-molded products. It uses heat to heat the gate portion, then cuts it off with a blade, achieving quick and accurate gate removal while preventing product deformation or damage. For example, utility model patent CN209466614U discloses a hot cutter for shearing gates in injection-molded products. The hot cutter includes a fixing component and a heating component, which is vertically positioned at the connection between the gate and the product. The hot cutter also includes a hot-cutting component positioned below the heating component, with a conical cross-section. This hot cutter, with its vertically positioned blade and conical cross-section, can directly cut off the connection between the gate and the product, effectively preventing product damage from heat and improving work efficiency. However, in the existing technology, the device lacks an adjustment mechanism, making it difficult to adjust the height of the pneumatic hot cutting blade body. This prevents the device from being used at different heights. Furthermore, the lack of a rotation mechanism makes it difficult to adjust the direction of the pneumatic hot cutting blade body, further hindering its usability. Therefore, improvements are needed. Utility Model Content

[0003] The purpose of this utility model is to provide a hot cutter for shearing gates of injection molded products. It solves the problems that when the device is in use, the lack of an adjustment mechanism makes it inconvenient to adjust the height of the pneumatic hot cutter body, resulting in the device being unable to be adjusted to different heights. In addition, the lack of a rotation mechanism makes it inconvenient to adjust the direction of the pneumatic hot cutter body, resulting in the device being inconvenient to use.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a hot cutter for shearing gates of injection molded products, comprising a mounting frame, a connecting plate in contact with the upper end of the mounting frame, a connecting block fixedly connected to the upper end of the connecting plate, a fixing plate fixedly connected to the upper end of the connecting block, an adjustment mechanism provided on the mounting frame, a rotating mechanism provided on the fixing plate, and a pneumatic hot cutter body provided on the rotating mechanism.

[0005] Preferably, the adjustment mechanism includes a screw, which is rotatably connected inside the mounting bracket. A handle is fixedly connected to the lower end of the screw, and a connecting sleeve is fixedly connected to the outer side of the screw. The connecting sleeve is rotatably connected to the mounting bracket, and an annular groove is formed inside the connecting sleeve. A threaded sleeve is threadedly connected to the outer side of the screw, and the threaded sleeve is slidably connected to the mounting bracket. A connecting plate is fixedly connected to the upper end of the threaded sleeve. A sliding groove is formed inside the mounting bracket, and a guide rod is slidably connected inside the sliding groove. The guide rod is fixedly connected to the connecting plate. By rotating the screw and the threaded sleeve, a threaded movement occurs. The threaded sleeve moves upward, causing the pneumatic hot cutting knife body and other components to move upward to a designated position, thereby allowing the height of the pneumatic hot cutting knife body to be adjusted, enabling the device to be used at different heights.

[0006] Preferably, a limiting block is slidably connected inside the annular groove, and the limiting block is fixedly connected to the mounting bracket. By designing the limiting block, the rotation of the screw can be supported.

[0007] Preferably, the rotating mechanism includes a circular plate. A circular plate is fixedly connected to the outer side of the pneumatic hot-cutting blade body, and the circular plate contacts a fixed plate. A rotating block is fixedly connected to the outer side of the circular plate, and the rotating block is rotatably connected to the fixed plate. A bearing is fixedly sleeved inside the fixed plate, and a rotating block is fixedly sleeved inside the inner ring of the bearing. A slot is formed inside the circular plate, and a slider is slidably connected inside the slot. A support ring is fixedly connected to the end of the slider away from the slot. A connecting seat is fixedly connected to the lower end of the fixed plate, and a pull rod is slidably connected inside the connecting seat. A spring is provided on the outer side of the pull rod. A guide block is slidably connected inside the connecting seat, and the guide block is fixedly connected to the support ring. The circular plate contacts the connecting seat, and the connecting seat is slidably connected to the slider. By pulling the slider out of the slot, and then rotating the pneumatic hot-cutting blade body, the circular plate and slot components are rotated to a designated position. Then, the slider is moved to another slot, thereby allowing the pneumatic hot-cutting blade body to be directionally adjusted, making the device easy to use.

[0008] Preferably, a pull rod is fixedly connected to the side of the support ring away from the slider, and a pull block is fixedly connected to the end of the pull rod away from the support ring. By designing the pull block, the pull rod can be moved.

[0009] Preferably, one end of the spring is fixedly connected to the support ring, and the other end of the spring is fixedly connected to the connecting seat. By designing the spring, the support ring has an elastic force.

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

[0011] 1. This utility model designs components such as a screw, handle, connecting sleeve, annular groove, limiting block, and threaded sleeve. Rotating the screw and threaded sleeve causes threaded movement, and the threaded sleeve moves upward, driving the pneumatic hot cutting knife body and other components to move upward to a designated position. This allows the height of the pneumatic hot cutting knife body to be adjusted, enabling the device to be used at different heights.

[0012] 2. This utility model designs components such as a circular plate, rotating block, bearing, slot, slider, and support ring. Pulling the slider out of the slot causes the pneumatic hot cutting knife body to rotate, which in turn rotates the circular plate and slot to a designated position. Then, the slider is moved to another slot, thereby allowing the pneumatic hot cutting knife body to be directionally adjusted, making the device easy to use. Attached Figure Description

[0013] Figure 1 This is a perspective view of the overall structure of this utility model;

[0014] Figure 2 This utility model Figure 1 Partial sectional perspective view of the structure;

[0015] Figure 3 This utility model Figure 1 A front sectional view;

[0016] Figure 4 This utility model Figure 3 Enlarged view of the screw;

[0017] Figure 5 This utility model Figure 4 Enlarged view of point A;

[0018] Figure 6 This utility model Figure 2 Enlarged view of point B.

[0019] In the diagram: 1. Mounting bracket; 2. Connecting plate; 3. Connecting block; 4. Fixing plate; 5. Adjusting mechanism; 51. Screw; 52. Handle; 53. Connecting sleeve; 54. Annular groove; 55. Limiting block; 56. Threaded sleeve; 57. Sliding groove; 58. Guide rod; 6. Rotating mechanism; 61. Circular plate; 62. Rotating block; 63. Bearing; 64. Slot; 65. Slider; 66. Support ring; 67. Pull rod; 68. Pull block; 69. Spring; 610. Guide block; 611. Connecting seat; 7. Pneumatic hot cutting knife body. Detailed Implementation

[0020] 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.

[0021] Please see Figures 1-6 A hot cutter for shearing gates of injection molded products includes a mounting frame 1, a connecting plate 2 in contact with the upper end of the mounting frame 1, a connecting block 3 fixedly connected to the upper end of the connecting plate 2, a fixing plate 4 fixedly connected to the upper end of the connecting block 3, an adjustment mechanism 5 provided on the mounting frame 1, a rotating mechanism 6 provided on the fixing plate 4, and a pneumatic hot cutter body 7 provided on the rotating mechanism 6.

[0022] Please see Figure 3 , Figure 4 , Figure 5 The adjusting mechanism 5 includes a screw 51. The screw 51 is rotatably connected inside the mounting bracket 1. A handle 52 is fixedly connected to the lower end of the screw 51. A connecting sleeve 53 is fixedly connected to the outer side of the screw 51. The connecting sleeve 53 is rotatably connected to the mounting bracket 1. An annular groove 54 is formed inside the connecting sleeve 53. A limit block 55 is slidably connected inside the annular groove 54. The limit block 55 is fixedly connected to the mounting bracket 1. By designing the limit block 55, the screw 51 can be supported to rotate. A threaded sleeve 56 is threadedly connected to the outer side of the screw 51. The threaded sleeve 56 is slidably connected to the mounting bracket 1. The upper end of the threaded sleeve 56 is fixedly connected to the connecting plate 2. The mounting bracket 1 has a sliding groove 57 inside. The sliding groove 57 is slidably connected to the guide rod 58 inside. The guide rod 58 is fixedly connected to the connecting plate 2. By rotating the screw 51, the threaded sleeve 56 moves upward, causing the pneumatic hot cutting knife body 7 and other components to move upward to the designated position. This allows the height of the pneumatic hot cutting knife body 7 to be adjusted, so that the device can be adjusted to different heights for use.

[0023] Please see Figure 1 , Figure 2 , Figure 3 , Figure 6The rotating mechanism 6 includes a circular plate 61. A circular plate 61 is fixedly connected to the outer side of the pneumatic hot cutting blade body 7, and the circular plate 61 contacts the fixed plate 4. A rotating block 62 is fixedly connected to the outer side of the circular plate 61, and the rotating block 62 is rotatably connected to the fixed plate 4. A bearing 63 is fixedly sleeved inside the fixed plate 4, and the rotating block 62 is fixedly sleeved inside the inner ring of the bearing 63. A slot 64 is formed inside the circular plate 61, and a slider 65 is slidably connected inside the slot 64. A support ring 66 is fixedly connected to the end of the slider 65 away from the slot 64. A pull rod 67 is fixedly connected to the side of the support ring 66 away from the slider 65. A pull block 68 is fixedly connected to the end of the pull rod 67 away from the support ring 66. By designing the pull block 68, the pull rod 67 can be moved. A connecting seat 611 is fixedly connected to the lower end of the fixed plate 4. A pull rod 67 is slidably connected inside the connecting seat 611. A spring 69 is provided on the outside of the pull rod 67. One end of the spring 69 is fixedly connected to the support ring 66, and the other end of the spring 69 is fixedly connected to the connecting seat 611. By designing the spring 69, the support ring 66 has an elastic force. A guide block 610 is slidably connected inside the connecting seat 611. The guide block 610 is fixedly connected to the support ring 66. The circular plate 61 contacts the connecting seat 611. The connecting seat 611 is slidably connected to the slider 65. By pulling the slider 65 out of the slot 64, and then rotating the pneumatic hot cutting knife body 7, the circular plate 61 and the slot 64 and other components are rotated to the designated position. Then the slider 65 is moved into another slot 64, thereby allowing the pneumatic hot cutting knife body 7 to be directionally adjusted, making the device easy to use.

[0024] The specific implementation process of this utility model is as follows: When the device needs height adjustment, rotate the handle 52. The rotation of the handle 52 drives the screw 51 to rotate, the rotation of the screw 51 drives the connecting sleeve 53 to rotate, the rotation of the connecting sleeve 53 drives the annular groove 54 to rotate, the rotation of the screw 51 causes threaded movement with the threaded sleeve 56, thereby causing the threaded sleeve 56 to generate relative displacement. The upward movement of the threaded sleeve 56 drives the connecting plate 2 to move upward, the upward movement of the connecting plate 2 drives the pneumatic hot cutting knife body 7 and other components to move upward. After the pneumatic hot cutting knife body 7 and other components move upward to the designated position, the height of the pneumatic hot cutting knife body 7 is adjusted, so that the device can be adjusted to different heights for use.

[0025] When the device requires directional adjustment, pull block 68 is moved away from connecting seat 611. The movement of pull block 68 causes pull rod 67 to move, which in turn causes support ring 66 to move. The movement of support ring 66 causes guide block 610 and slider 65 to move. Slider 65 moves out of slot 64. Then, the pneumatic hot cutting knife body 7 is rotated, causing circular plate 61, slot 64 and rotating block 62 to rotate. After the pneumatic hot cutting knife body 7, circular plate 61 and slot 64 rotate to the designated position, pull block 68 is released. The elastic force of spring 69 pushes support ring 66 to move. The movement of support ring 66 causes slider 65 to move. Slider 65 moves into another slot 64, thereby allowing the pneumatic hot cutting knife body 7 to be directionally adjusted, making the device easy to use.

[0026] 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. A hot-cutting blade for shearing gates in injection-molded products, comprising a mounting bracket (1), characterized in that: The upper end of the mounting bracket (1) is in contact with a connecting plate (2), the upper end of the connecting plate (2) is fixedly connected to a connecting block (3), the upper end of the connecting block (3) is fixedly connected to a fixing plate (4), the mounting bracket (1) is provided with an adjustment mechanism (5), the fixing plate (4) is provided with a rotating mechanism (6), and the rotating mechanism (6) is provided with a pneumatic hot cutting knife body (7).

2. A hot-cutting blade for shearing gates in injection molded products according to claim 1, characterized in that: The adjustment mechanism (5) includes a screw (51), which is rotatably connected inside the mounting bracket (1). A handle (52) is fixedly connected to the lower end of the screw (51), and a connecting sleeve (53) is fixedly connected to the outer side of the screw (51). The connecting sleeve (53) is rotatably connected to the mounting bracket (1). An annular groove (54) is provided inside the connecting sleeve (53). A threaded sleeve (56) is threadedly connected to the outer side of the screw (51). The threaded sleeve (56) is slidably connected to the mounting bracket (1). A connecting plate (2) is fixedly connected to the upper end of the threaded sleeve (56). A sliding groove (57) is provided inside the mounting bracket (1). A guide rod (58) is slidably connected inside the sliding groove (57). The guide rod (58) is fixedly connected to the connecting plate (2).

3. A hot-cutting blade for shearing gates in injection molded products according to claim 2, characterized in that: The annular groove (54) is internally connected to a limiting block (55), which is fixedly connected to the mounting bracket (1).

4. A hot-cutting blade for shearing gates in injection-molded products according to claim 1, characterized in that: The rotating mechanism (6) includes a circular plate (61). The circular plate (61) is fixedly connected to the outer side of the pneumatic hot cutting knife body (7). The circular plate (61) is in contact with the fixed plate (4). A rotating block (62) is fixedly connected to the outer side of the circular plate (61). The rotating block (62) is rotatably connected to the fixed plate (4). A bearing (63) is fixedly sleeved inside the fixed plate (4). The rotating block (62) is fixedly sleeved inside the inner ring of the bearing (63). A slot (64) is opened inside the circular plate (61). A sliding joint is slidably connected inside the slot (64). Block (65), the end of the slider (65) away from the slot (64) is fixedly connected to a support ring (66), the lower end of the fixing plate (4) is fixedly connected to a connecting seat (611), the inside of the connecting seat (611) is slidably connected to a pull rod (67), the outside of the pull rod (67) is provided with a spring (69), the inside of the connecting seat (611) is slidably connected to a guide block (610), the guide block (610) is fixedly connected to the support ring (66), the circular plate (61) is in contact with the connecting seat (611), and the connecting seat (611) is slidably connected to the slider (65).

5. A hot-cutting blade for shearing gates in injection-molded products according to claim 4, characterized in that: A pull rod (67) is fixedly connected to the side of the support ring (66) away from the slider (65), and a pull block (68) is fixedly connected to the end of the pull rod (67) away from the support ring (66).

6. A hot-cutting blade for shearing gates in injection-molded products according to claim 4, characterized in that: One end of the spring (69) is fixedly connected to the support ring (66), and the other end of the spring (69) is fixedly connected to the connecting seat (611).

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