An automatic machine for cutting the length of the tail of a four-core wire after heat shrinking and trimming.
By designing an automated four-core wire tail length trimming machine, the problems of low efficiency, insufficient precision, and significant safety hazards in existing technologies have been solved, achieving efficient and precise wire tail processing and ensuring product consistency and safety.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- YANGZHOU HUASHENG ELECTRONICS IND
- Filing Date
- 2025-06-16
- Publication Date
- 2026-07-31
AI Technical Summary
Existing technologies for cutting the length of four-core wires, applying heat-shrink tubing, and heat-shrinking processes suffer from low efficiency, insufficient precision, significant safety hazards, and poor product consistency, and also lack integrated equipment.
An automatic four-core wire tail length trimming machine was designed, comprising a heat shrink tubing cutting and feeding assembly, a core wire pushing assembly, and a blow-shrink assembly. This machine automatically trims the wire length, applies heat shrink tubing, and performs heat shrinking. It utilizes components such as cylinders, rollers, and hot air blowers to work in synergy.
It enables efficient and precise processing of the four-core wire tail, improves production efficiency, ensures product consistency, and avoids the safety risks of manual operation.
Smart Images
Figure CN224574572U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of wire harness processing technology, and in particular to an automatic machine for cutting the length of the tail of a four-core wire by cutting, heating and shrinking it. Background Technology
[0002] In the field of wire harness processing, trimming the ends of four-core wires, applying heat shrink tubing, and heat shrinking are common process steps. Traditional processing methods rely on manual operation; operators need to manually cut the wires, apply heat shrink tubing, and then use equipment such as hot air guns or ovens for heat shrinking. This processing method has the following drawbacks:
[0003] 1. Inefficient;
[0004] Manual operation is slow and cannot meet the needs of large-scale production. In addition, it is labor-intensive and can easily lead to worker fatigue.
[0005] 2. Insufficient precision;
[0006] Manually cutting the wire length is prone to errors, resulting in inconsistent wire lengths and affecting the quality of subsequent assembly; the placement of the heat shrink tubing and the uniformity of shrinkage are also difficult to guarantee.
[0007] 3. Poor consistency;
[0008] Manual operation is easily affected by external factors and individual differences, resulting in large fluctuations in product qualification rate, which may increase rework costs.
[0009] 4. Safety hazards;
[0010] Heat shrinking requires contact with high-temperature equipment, posing a risk of burns, and manual operation may damage the wires due to errors.
[0011] Currently, while some automated equipment on the market can perform wire cutting or heat shrinking functions, most are single-process devices lacking integrated design. For example, some automatic wire cutting machines can only complete the cutting, while the insertion and heating of heat shrink tubing still require manual intervention, resulting in insufficient overall automation. In addition, there are few dedicated devices for processing the ends of four-core wires, especially integrated devices that can simultaneously complete length cutting, heat shrink tubing insertion, and heat shrinking.
[0012] Therefore, there is an urgent need for a four-core wire processing equipment that can automatically complete the cutting of lengths, application of heat shrink tubing, and heat shrinking treatment, in order to improve production efficiency, ensure processing accuracy, and reduce labor costs and operational risks. Summary of the Invention
[0013] In view of the above-mentioned defects or improvement needs of the existing technology, this utility model provides an automatic machine for cutting the length of the tail of a four-core wire by cutting, heating and shrinking the tubing.
[0014] An automatic machine for cutting and shortening the tail of a four-core wire using heat shrink tubing includes a heat shrink tubing cutting and feeding assembly, a core wire pushing assembly, and a heat shrink tubing blowing assembly distributed on an operating platform. The heat shrink tubing cutting and feeding assembly, arranged sequentially according to the travel direction of the heat shrink tubing, includes a push roller assembly, a cutting cylinder, a pushing cylinder, and a heat shrink tubing support. The push roller assembly is arranged vertically. A cutter is vertically mounted on the output end of the cutting cylinder. The pushing cylinder is located at the cutter, and its output end is perpendicular to the rotation direction of the pushing roller assembly. The heat shrink tubing support is located at the output end of the pushing cylinder. The core wire pushing assembly includes a fixing cylinder and a push plate. The fixing cylinder includes an upper fixing cylinder and a lower fixing cylinder arranged vertically opposite each other for fixing the wire core. The push plate pushes the heat shrink tubing to the top of the wire core via a pushing component. The heat shrink tubing blowing assembly includes a heat shrink tubing blowing cylinder and a hot air blower. The position of the heat shrink tubing blowing cylinder corresponds to that of the fixing cylinder, and it is used to clamp the wire core fitted into the heat shrink tubing and move it to the outlet of the hot air blower.
[0015] Furthermore, the push roller assembly consists of several corresponding upper and lower rollers; the cutting cylinder is vertically positioned at the end of the push roller assembly; the output end of the push cylinder is horizontally positioned towards the heat shrink tubing bracket; the cutter is located between the push cylinder and the heat shrink tubing bracket; a set-moving component is also installed on the heat shrink tubing bracket, which moves to fit the heat shrink tubing into the heat shrink tubing bracket.
[0016] Furthermore, clamping blocks are installed at the output ends of both the upper and lower fixed cylinders; the pushing component is a lead screw, which is installed horizontally with the push plate.
[0017] Furthermore, the blow-down cylinder is also installed in conjunction with a blow-down moving part, which moves the blow-down cylinder to the hot air blower.
[0018] Furthermore, the blow-down assembly also includes a boxing cylinder for gripping the finished core wire.
[0019] Furthermore, the push cylinder, the blow cylinder, and the boxing cylinder are all wire clamping cylinders.
[0020] Furthermore, the blowing and compression moving parts are synchronous belts, and a motor is installed in conjunction with them.
[0021] Compared with the prior art, the present invention has the following beneficial effects:
[0022] 1. It can automatically complete the cutting of length, fitting of heat shrink tubing and heat shrinking process, with fast operation speed, which can meet the needs of large-scale production;
[0023] 2. It can ensure the consistency of wire length, heat shrink tubing insertion position, and shrinkage uniformity, without affecting the subsequent assembly quality;
[0024] 3. Effectively avoids the problem of large fluctuations in product qualification rate due to external factors and individual differences caused by manual operation;
[0025] 4. Completely eliminates the risk of burns caused by contact with high-temperature equipment during heat shrinking. Attached Figure Description
[0026] Figure 1 This is a schematic diagram of the structure of this utility model;
[0027] Figure 2 This is a schematic diagram of the inner side of the present invention;
[0028] Figure 3 This is a schematic diagram of the structure of the heat shrink tubing support in this utility model;
[0029] Figure 4 This is a schematic diagram of the structure of the heat shrink tubing cutting and feeding assembly in this utility model;
[0030] In the diagram: 1. Blow-shrink cylinder, 2. Upper fixed cylinder, 3. Lower fixed cylinder, 4. Clamping block, 5. Motor, 6. Hot air blower, 7. Packing cylinder, 8. Blow-shrink moving part, 9. Set moving part, 10. Pushing part, 11. Push plate, 12. Heat shrink tubing bracket, 13. Cutting cylinder, 14. Cutting knife, 15. Push roller assembly, 16. Pushing cylinder. Detailed Implementation
[0031] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. The specific implementation methods of the present invention will be described in detail below with reference to the accompanying drawings and specific embodiments.
[0032] like Figure 1 As shown, this utility model is an automatic machine for cutting and shortening the tail of a four-core wire by cutting and heat shrinking tubing, including a heat shrink tubing cutting and feeding assembly, a core wire pushing assembly, and a shrinking assembly distributed on the operating platform.
[0033] The heat shrink tubing cutting and feeding assembly, in sequence according to the direction of heat shrink tubing travel, includes a push roller assembly 15, a cutting cylinder 13, a pushing cylinder 16, and a heat shrink tubing support 12; as shown... Figure 4 As shown, the push roller assembly 15 consists of several vertically corresponding rollers; the cutting cylinder 13 is vertically disposed at the end of the push roller assembly 15, and a cutter 14 is vertically mounted on the output end of the cutting cylinder 13, the cutter 14 being located between the push cylinder 16 and the heat shrink tubing bracket 12; the push cylinder 16 is disposed at the cutter 14, and its output end is perpendicular to the rotation direction of the push roller assembly 15; the heat shrink tubing bracket 12 is disposed at the output end of the push cylinder 16, and the output end of the push cylinder 16 is horizontally oriented towards the heat shrink tubing bracket 12; as shown Figure 2-3 As shown, a sliding sleeve 9 is also installed on the heat shrink tubing bracket 12, which allows the heat shrink tubing to be inserted into the heat shrink tubing bracket 12 by moving it.
[0034] The core wire pushing assembly includes a fixing cylinder and a push plate 11; the fixing cylinder includes an upper fixing cylinder 2 and a lower fixing cylinder 3 arranged opposite each other, and the output ends of the upper fixing cylinder 2 and the lower fixing cylinder 3 are each equipped with a clamping block 4 for fixing the core wire; the push plate 11 pushes the heat shrink tubing to the top of the core wire through a pusher 10, the pusher 10 being a lead screw, which is installed horizontally with the push plate 11.
[0035] The heat shrink assembly includes a heat shrink cylinder 1 and a hot air blower 6. The heat shrink cylinder 1 is positioned corresponding to the fixed cylinder and is used to clamp the wire core that has been fitted into the heat shrink tubing and move it to the air outlet of the hot air blower 6. The heat shrink cylinder 1 is also installed in conjunction with a heat shrink moving part 8, which moves the heat shrink cylinder 1 to the hot air blower 6. The heat shrink assembly also includes a boxing cylinder 7 for clamping the finished wire core.
[0036] The push cylinder 16, the blow-and-shrink cylinder 1, and the box-packing cylinder 7 mentioned above are all wire clamping cylinders.
[0037] The blowing and retracting moving part 8 is a synchronous belt, which is installed with a motor 5; the set moving part 9 is also a synchronous belt.
[0038] In operation, the heat shrink tubing is placed in the push roller assembly 15. As the push roller assembly 15 rotates, the heat shrink tubing is pushed toward the cutter 14. Under the action of the cutting cylinder 13, the cutter 14 cuts the heat shrink tubing. Under the action of the pushing cylinder 16, the cut heat shrink tubing is pushed onto the heat shrink tubing bracket 12. The heat shrink tubing is then fitted into the heat shrink tubing bracket 12 by the sleeve moving part 9.
[0039] The upper fixed cylinder 2 and the lower fixed cylinder 3 move towards each other, driving the clamping block 4 to clamp and fix the wire core; the pushing component 10 drives the pushing plate 11 to move, pushing the heat shrink tubing into the top of the wire core; the blowing cylinder 1 clamps the wire core that has been fitted with the heat shrink tubing, the blowing moving component 8 moves, moving the wire core to below the hot air blower 6, the hot air blower acts to blow and shrink the heat shrink tubing; finally, the boxing cylinder 7 clamps the finished product, pushes it forward, and puts it into the wire box.
[0040] The above embodiments are for illustrative purposes only and are not intended to limit the scope of this invention. Although this invention has been described in detail with reference to the embodiments, those skilled in the art should understand that various combinations, modifications, or equivalent substitutions of the technical solutions of this invention do not depart from the spirit and scope of the technical solutions of this invention and should be covered within the scope of the claims of this invention.
Claims
1. A four-core wire tail length trimming automatic machine for trimming and heat-shrinking the sleeve of a sheath, comprising a heat-shrinking tube cutting and feeding assembly, a core wire pushing assembly and a blowing and shrinking assembly distributed on an operation platform, characterized in that: The heat shrink tubing cutting and feeding assembly includes, in sequence according to the travel direction of the heat shrink tubing, a pusher roller assembly, a cutting cylinder, a pushing cylinder, and a heat shrink tubing bracket; the pusher roller assembly is arranged vertically; a cutter is vertically mounted on the output end of the cutting cylinder; the pushing cylinder is located at the cutter, and its output end is perpendicular to the rotation direction of the pushing roller assembly; the heat shrink tubing bracket is located at the output end of the pushing cylinder; the core wire pushing assembly includes a fixing cylinder and a push plate; the fixing cylinder includes an upper fixing cylinder and a lower fixing cylinder arranged vertically opposite each other, used to fix the core wire; the push plate pushes the heat shrink tubing to the top of the core wire through a pushing component; the blow-shrink assembly includes a blow-shrink cylinder and a hot air blower; the blow-shrink cylinder is positioned corresponding to the fixing cylinder, used to clamp the core wire fitted into the heat shrink tubing and move it to the air outlet of the hot air blower.
2. The automatic machine for cutting and shortening the tail of four-core wires of sheath heat-shrinkable tubes according to claim 1, characterized in that: The push roller assembly consists of several vertically corresponding rollers; the cutting cylinder is vertically positioned at the end of the push roller assembly; the output end of the push cylinder is horizontally positioned towards the heat shrink tubing bracket; the cutter is located between the push cylinder and the heat shrink tubing bracket; a sliding fitting is also installed on the heat shrink tubing bracket, which moves to fit the heat shrink tubing into the heat shrink tubing bracket.
3. The automatic machine for cutting and shortening the tail of four-core wires of sheath heat-shrinkable tubes according to claim 2, characterized in that: Both the upper and lower fixed cylinders have clamping blocks installed at their output ends; the pushing component is a lead screw, which is installed horizontally with the push plate.
4. The automatic machine for cutting and shortening the tail of four-core wires of sheath heat-shrinkable tubes according to claim 3, characterized in that: The blow-down cylinder is also installed in conjunction with a blow-down moving part, which moves the blow-down cylinder to the hot air blower.
5. The automatic machine for cutting and shortening the tail of four-core wires of sheath heat-shrinkable tubes according to claim 4, characterized in that: The blow-down assembly also includes a boxing cylinder for gripping the finished core wire.
6. The automatic machine for cutting the length of a four-core wire tail end in a heat-shrink tubing process according to claim 5, characterized in that: The push cylinder, the blow cylinder, and the boxing cylinder are all wire clamping cylinders.
7. The automatic machine for cutting the length of a four-core wire tail end in a heat-shrink tubing process according to claim 4, characterized in that: The blowing and retracting moving component is a synchronous belt, which is fitted with a motor.