Multi-nut hot-pressing embedded depth adjusting jig

By designing a multi-nut hot-pressing embedment depth adjustment fixture, and utilizing the structure of adjusting screws and limiting parts, the problem of inconvenient adjustment of nut hot-pressing embedment depth was solved, thereby improving production efficiency and safety and reducing costs.

CN224527815UActive Publication Date: 2026-07-21DONGJIANG PLASTIC PROD SUZHOU CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
DONGJIANG PLASTIC PROD SUZHOU CO LTD
Filing Date
2025-07-18
Publication Date
2026-07-21

AI Technical Summary

Technical Problem

The depth adjustment of the nut's heat-embedded hole in the plastic is inconvenient, leading to inconvenient operation and the risk of burns, which affects production efficiency and yield.

Method used

A multi-nut hot-pressing embedding depth adjustment fixture is designed. By adjusting the screws to control the position of the hot-pressing copper pillar, the nut pressing depth can be precisely adjusted. Combined with the limiting component and guide pillar structure, the operation safety and production efficiency are ensured.

Benefits of technology

This allows for convenient adjustment of the nut pressing depth, improving production efficiency and yield, while reducing operational risks and costs.

✦ Generated by Eureka AI based on patent content.

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    Figure CN224527815U_ABST
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Abstract

The utility model relates to a kind of multi-nut hot-pressing burying depth adjusting jig, including jig upper template and product bearing plate, and the guide pillar being inserted between the both, jig upper template is equipped with a flange linear bearing, the both ends of jig upper template are respectively fixedly connected upper limit piece, and center position is crimped a connecting flange, the periphery of connecting flange is equipped with multiple adjusting screws, the bottom end of jig upper template is fixedly connected multiple fixed plates, the bottom end of fixed plate is fixedly connected a heating copper block, the bottom end of heating copper block is fixedly connected an adjusting plate, adjusting plate is worn a hot-pressing copper column, the bottom end of adjusting screw and the top end of hot-pressing copper column abut, product bearing plate length direction both ends top position fixedly connected lower limit piece, upper limit piece is set in the upside of lower limit piece. This multi-nut hot-pressing burying depth adjusting jig has the advantages of convenient adjustment, improving yield and consistency, improving efficiency, facilitating operation, reducing cost and the like.
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Description

Technical Field

[0001] This utility model relates to the technical field of nut hot pressing adjustment fixtures, and in particular to a multi-nut hot pressing embedding depth adjustment fixture. Background Technology

[0002] Currently, many plastic products are manufactured, some as injection-molded inserts, some requiring post-processing heat-embedding of nuts, and some requiring the embedding of multiple nuts. To improve production efficiency and save on fixture and equipment costs, multiple nuts in the same direction are typically heat-embedded into plastic holes at once using a fixture. However, in actual operation, the depth to which the nuts are heat-embedded in the plastic holes varies. Adjusting the height of the heating column by tightening screws on the side of the fixture to compensate for uneven nut embedding is problematic; it's extremely inconvenient to operate because the fixture is very hot and could burn the technician's hands. There is an urgent need for a fixture with a convenient mechanism for adjusting the nut embedding depth, allowing for safe and easy adjustment to achieve the desired nut embedding depth.

[0003] To address these issues, we developed a multi-nut hot-pressing embedding depth adjustment fixture. Utility Model Content

[0004] The purpose of this utility model is to overcome the shortcomings of the prior art by providing a multi-nut hot-pressing embedding depth adjustment fixture, which has the advantages of easy adjustment, improved yield and consistency, increased efficiency, easy operation, and reduced cost.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows: a multi-nut hot-press embedding depth adjustment fixture, comprising an upper template and a product support plate. A flange linear bearing is provided at each of the four corners of the upper template. Upper limiters are fixedly connected to both ends of the upper template along its length, and a connecting flange is pressed into the center. Multiple adjusting screws are provided around the connecting flange. Multiple fixing plates are fixedly connected to the bottom of the upper template. A heating copper block is fixedly connected to the bottom of each fixing plate. An adjusting plate is fixedly connected to the bottom of the heating copper block. A hot-pressing copper column passes through the adjusting plate. The bottom end of each adjusting screw abuts against the top end of the hot-pressing copper column. Lower limiters are fixedly connected to the top positions of both ends of the product support plate along its length, and the upper limiters are positioned directly above the lower limiters.

[0006] Preferably, a guide post is provided between the flange linear bearing and the product support plate, and a product fixture is fixedly connected to the top of the product support plate, with the product fixture holding the injection molded product.

[0007] Preferably, the adjusting screw includes a first adjusting screw, a second adjusting screw, a third adjusting screw and a fourth adjusting screw, wherein the first adjusting screw is provided with an adjusting nut, and the adjusting nut is pressed against the top of the template on the fixture.

[0008] Preferably, the adjustment plate has a countersunk hole at its center and a strip hole at each end, the strip hole being adjustablely connected to the heating copper block.

[0009] Preferably, a boss is provided at the top of the hot-pressed copper column, and the boss is engaged with the countersunk hole.

[0010] Preferably, a protruding post is provided at the bottom end of the hot-pressed copper post, and a hot-pressed nut is inserted into the protruding post.

[0011] Preferably, the upper limit positioner is a cylindrical part, and there are 4 of them.

[0012] Preferably, the lower limiting member is a T-shaped block, and the top end of the T-shaped block is pressed against the bottom end of the cylindrical member.

[0013] Preferably, a spring is inserted through the guide post, and a gasket is provided at the bottom end of the flange linear bearing, with the spring pressed between the gasket and the top end of the product bearing plate.

[0014] Preferably, the product fixture has a contour groove at the top and a screw hole at each of the four corners. The contour groove has a positioning hole, and the injection molded product has a positioning post at the bottom. The positioning post is inserted into the positioning hole.

[0015] Preferably, a pressure head is crimped to the bottom end of the connecting flange, and the bottom end of the pressure head is fixedly connected to the template on the fixture.

[0016] Due to the application of the above technical solution, this utility model has the following advantages compared with the prior art:

[0017] The multi-nut hot-press embedding depth adjustment fixture of this utility model controls the pressing depth of the nuts by adjusting the limit adjustment screws above the hot-press copper pillars, avoiding abnormal height after the nuts are pressed in, improving efficiency and yield, and facilitating the adjustment of each adjustment screw; it is also extremely convenient and safe for debugging, and easy for operators to operate; it can be used to adjust the position of the hot-press copper pillars for similar injection molded products, reducing costs. Attached Figure Description

[0018] Figure 1 This is a perspective view of the multi-nut hot-pressing embedding depth adjustment fixture of this utility model.

[0019] Figure 2 This is a schematic diagram of the product fixture described in this utility model.

[0020] Figure 3 This is a schematic diagram of the structure of the injection-molded product described in this utility model.

[0021] Figure 4This is a schematic diagram of the structure of the adjustment plate described in this utility model.

[0022] Figure 5 This is a schematic diagram of the hot-pressed copper column of this utility model. Detailed Implementation

[0023] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0024] Figures 1 to 5 A multi-nut hot-press embedding depth adjustment fixture includes an upper template 30 and a product support plate 50. A flange linear bearing 31 is provided at each of the four corners of the upper template 30. Upper limit members 32 are fixedly connected to both ends of the upper template 30 along its length, and a connecting flange 10 is pressed into the center. Multiple adjusting screws are provided around the connecting flange 10. Multiple fixing plates 33 are fixedly connected to the bottom end of the upper template 30, and a heating copper block 34 is fixedly connected to the bottom end of each fixing plate 33. An adjusting plate 35 is fixedly connected to the bottom of the heating copper block 34. A hot-pressing copper column 36 passes through the adjusting plate 35. The bottom of the adjusting screw abuts against the top of the hot-pressing copper column 36. Lower limiters 51 are fixedly connected to the top of both ends of the product support plate 50 along its length. Upper limiters 32 are positioned directly above the lower limiters 51. A guide post 40 passes between the flange linear bearing 31 and the product support plate 50. A product fixture 60 is fixedly connected to the top of the product support plate 50, and the injection molded product 100 is placed in the product fixture 60. Four nuts are placed on the top of the injection molded product 100, each positioned directly below the hot-pressing copper column 36. The upper limiters 32 are cylindrical, and there are four of them. The lower limiters 51 are T-shaped blocks, with the top of the T-shaped blocks pressed against the bottom of the cylindrical blocks. The upper and lower limiters are pressed together for positioning, facilitating the hot pressing of the nuts and improving production efficiency. A pressure head 11 is pressed against the bottom end of the connecting flange 10, and the bottom end of the pressure head 11 is fixedly connected to the upper template 30 of the fixture. The connecting flange 10 is connected to a cylinder. The cylinder drives the connecting flange to move the upper template 30 of the fixture up and down.

[0025] The adjusting screws include a first adjusting screw 21, a second adjusting screw 22, a third adjusting screw 23 and a fourth adjusting screw 24. The first adjusting screw 21 is fitted with an adjusting nut 211, which is pressed against the top of the template 30 on the fixture.

[0026] The adjusting plate 35 has a countersunk hole 351 at its center and a strip hole 352 at each end. The strip holes 352 are adjustablely connected to the heating copper block 34. The strip holes allow for horizontal adjustment of the adjusting plate 35, thus facilitating fine-tuning of the hot-pressed copper column.

[0027] A boss 361 is provided at the top of the hot-pressed copper pillar 36, and a protrusion 362 is provided at the bottom of the hot-pressed copper pillar 36. The boss 361 is engaged with the countersunk hole 351. A hot-pressed nut is inserted into the protrusion 362. The protrusion 362 is inserted into the bottom hole on the underside of the hot-pressed nut for easy positioning during hot pressing.

[0028] A spring 41 passes through the guide post 40, and a gasket 311 is provided at the bottom end of the flange linear bearing 31. The spring 41 is pressed between the gasket 311 and the top end of the product support plate 50. The flange linear bearing 31 makes the template 30 on the fixture move smoothly up and down along the guide post 40. The spring makes the hot-pressed copper post and nut press tightly together.

[0029] The product fixture 60 has a contour groove 61 at its top and a screw hole 62 at each of its four corners. The contour groove 61 has a positioning hole 610. The injection molded product 100 has a positioning post 105 at its bottom, which is inserted into the positioning hole 610. The contour groove 61 facilitates the contour positioning of the injection molded product. A first nut 101 and a second nut 102 are provided on one side of the injection molded product 100 along its length, and a third nut 103 and a fourth nut 104 are provided on the other side. Each hot-pressed nut is located directly below the hot-pressed copper post.

[0030] First, place the injection molded product 100 on the product fixture 60. Start the machine, causing the template 30 on the fixture to move downwards along the four guide pillars. When the hot-pressing copper pillar 36 contacts the nut on the product, the nut is slowly pressed into the product. After the set time, the template 30 on the fixture moves upwards along the product fixture 60 and returns to the starting point along the guide pillars, completing the hot-pressing action. When a nut is pressed into the deepest position, adjust the corresponding hot-pressing copper pillar limit adjustment screw upwards and then tighten it; conversely, adjust it downwards and tighten it. Because the limit adjustment screws of the hot-pressing copper pillars are designed to have a gap between them before hot pressing, the purpose is to adjust the limit adjustment screws so that the bottom ends of the hot-pressing copper pillars and the limit adjustment screws are pressed together during final pressing, achieving the pressing effect.

[0031] The above are merely specific application examples of this utility model and do not constitute any limitation on the scope of protection of this utility model. All technical solutions formed by equivalent transformations or equivalent substitutions fall within the scope of protection of this utility model.

Claims

1. A multi-nut hot-pressing embedment depth adjustment fixture, characterized in that: The fixture includes an upper template (30) and a product support plate (50). Each of the four corners of the upper template (30) is equipped with a flange linear bearing (31). Upper limiters (32) are fixedly connected to both ends of the upper template (30) along its length, and a connecting flange (10) is pressed into the center. Multiple adjusting screws are provided around the connecting flange (10). Multiple fixing plates (33) are fixedly connected to the bottom of the upper template (30). A heating copper block (34) is fixedly connected to the bottom of each fixing plate (33), and an adjusting plate is fixedly connected to the bottom of each heating copper block (34). 35), the adjusting plate (35) is provided with a hot-pressed copper column (36), the bottom end of the adjusting screw abuts against the top end of the hot-pressed copper column (36), the top ends of the product bearing plate (50) are fixedly connected to the lower limit member (51) in the length direction, the upper limit member (32) is located on the upper side of the lower limit member (51), the flange linear bearing (31) is provided with a guide post (40) between it and the product bearing plate (50), the top end of the product bearing plate (50) is fixedly connected to the product fixture (60), and the product fixture (60) holds the injection molded product (100).

2. The multi-nut hot-pressing embedment depth adjustment fixture according to claim 1, characterized in that, The adjusting screws include a first adjusting screw (21), a second adjusting screw (22), a third adjusting screw (23) and a fourth adjusting screw (24). The first adjusting screw (21) is fitted with an adjusting nut (211), and the adjusting nut (211) is pressed against the top of the template (30) on the fixture.

3. The multi-nut hot-pressing embedment depth adjustment fixture according to claim 1, characterized in that, The adjustment plate (35) has a countersunk hole (351) at its center and a strip hole (352) at each end. The strip hole (352) is adjustablely connected to the heating copper block (34).

4. The multi-nut hot-pressing embedment depth adjustment fixture according to claim 3, characterized in that, The top of the hot-pressed copper column (36) is provided with a boss (361), which is engaged with the countersunk hole (351).

5. The multi-nut hot-pressing embedment depth adjustment fixture according to claim 4, characterized in that, The bottom end of the hot-pressed copper column (36) is provided with a protrusion (362), and the protrusion (362) is inserted into the hot-pressed nut.

6. The multi-nut hot-pressing embedment depth adjustment fixture according to claim 1, characterized in that, The upper limit component (32) is a cylindrical component, and there are 4 of them.

7. The multi-nut hot-pressing embedment depth adjustment fixture according to claim 6, characterized in that, The lower limit member (51) is a T-shaped block, and the top end of the T-shaped block is pressed against the bottom end of the cylindrical member.

8. The multi-nut hot-pressing embedment depth adjustment fixture according to claim 1, characterized in that, The guide post (40) is fitted with a spring (41), and the bottom end of the flange linear bearing (31) is provided with a gasket (311). The gasket (311) is pressed against the top end of the product bearing plate (50).

9. The multi-nut hot-pressing embedment depth adjustment fixture according to claim 1, characterized in that, The product fixture (60) has a contour groove (61) at the top and screw holes (62) at each of the four corners. The contour groove (61) has a positioning hole (610). The injection molded product (100) has a positioning post (105) at the bottom. The positioning post (105) is inserted into the positioning hole (610).

10. The multi-nut hot-pressing embedment depth adjustment fixture according to claim 1, characterized in that, The bottom end of the connecting flange (10) is crimped with a pressure head (11), and the bottom end of the pressure head (11) is fixedly connected to the template (30) on the fixture.