A very fine thread bundle cutting apparatus with a leak-proof clip

Abstract

The utility model discloses an extremely fine wire harness cutting device with leakage-proof shears, and relates to the technical field of wire harness processing equipment, which comprises a base, a conveying assembly is arranged on the top of the base, a cutting assembly is arranged at the position of the base top downstream of the conveying assembly, a linkage assembly is arranged between the conveying assembly and the cutting assembly, and is used for transmitting the power source of the conveying assembly to the cutting assembly. The extremely fine wire harness cutting device with leakage-proof shears, when the motor works normally, the conveying and cutting actions of the wire harness are synchronously and coordinately carried out, so that the wire harness is continuously and accurately cut. Once the motor fails, the whole device will stop running, that is, the upper and lower compression rollers stop rotating, the wire harness is no longer conveyed forward, the cutting knife also stops the cutting action, and the leakage phenomenon caused by the continued cutting action due to the motor failure is avoided.

Description

Technical Field

[0001] This utility model relates to the technical field of wire harness processing equipment, specifically to an ultra-fine wire harness cutting device with anti-missed cutting function. Background Technology

[0002] In the fields of electronics and automobiles, technological advancements have led to increasing demands for product performance, size, weight, and reliability. Ultra-fine wire harnesses, with their advantages of small wire diameter, minimal space occupation, light weight, and ability to achieve dense connections, are finding increasingly widespread application in these fields and have become an indispensable key component, playing a crucial role in enhancing product competitiveness.

[0003] In the prior art, such as in publication number CN216801511U, a wire harness cutting device for wire harness processing is disclosed. It includes a worktable with an outer protective shell on top. Inside the outer protective shell is a wire harness tray, and a support is provided between the wire harness tray and the inner top surface of the outer protective shell. Inside the outer protective shell, below the wire harness tray, is a fixed pulley capable of limiting the wire harness position. A second support is provided between the fixed pulley and the worktable. A cutting table is located on the worktable and on one side of the second support, and a wire harness tightening structure is provided on the cutting table. This device saves manpower, eliminates the need to search for the wire harness end after each cut, and increases work efficiency.

[0004] Existing wire harness cutting devices are prone to missed cuts if the power mechanism driving the cutting blade suddenly malfunctions, preventing the cutting blade from completing the cutting action according to the predetermined program. Meanwhile, the wire harness continues to be conveyed by the conveying mechanism, which can easily lead to missed cuts, resulting in unnecessary material waste and production delays. Therefore, this utility model provides an ultra-fine wire harness cutting device with anti-missed cut features. Utility Model Content

[0005] To address the shortcomings of existing technologies, this utility model provides an ultra-fine wire harness cutting device with anti-missed cutting features. This solves the problem that during the ultra-fine wire harness cutting process, the cutting blade cannot work properly due to a failure in the power mechanism driving the cutting blade, resulting in the wire harness being continuously fed and thus causing missed cutting.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a fine wire harness cutting device with anti-missing cutting capability, comprising a base, a conveying assembly at the top of the base, and a cutting assembly located downstream of the conveying assembly at the top of the base. A linkage assembly is provided between the conveying assembly and the cutting assembly to transmit the power source of the conveying assembly to the cutting assembly. The conveying assembly includes two roller seats mounted on the top surface of the base. A lower pressure roller and an upper pressure roller are installed between the opposite surfaces of the two roller seats. One roller seat has a driven gear connected to the upper pressure roller on its outer side, and a driving gear fixedly connected to the lower pressure roller on its outer side. The driving gear and the driven gear are meshed and connected. The conveying assembly also includes a motor mounted on the top surface of the base. The output shaft of the motor is connected to the driving gear. There are two linkage components, which are symmetrically distributed on the sides of the conveying assembly and the cutting assembly. Each linkage component includes a mounting plate and a fixed seat. A connecting shaft is fixedly connected to the mounting plate. A first synchronous pulley is mounted on the connecting shaft. The fixed seat is fixedly mounted on the top surface of the base. A second synchronous pulley is rotatably mounted on the fixed seat. An eccentric rod is installed near the edge of one end face of the two second synchronous pulleys. A synchronous belt is provided between the second synchronous pulley and the first synchronous pulley.

[0007] Preferably, both the lower and upper pressure rollers are fitted with anti-slip roller sleeves, and the two anti-slip roller sleeves form a channel for conveying the wire harness.

[0008] Preferably, another roller seat has a connecting plate on its outer side that is connected to the upper pressure roller. Multiple connecting screws are fixedly connected to both the driven gear and the connecting plate, and the connecting screws are connected to the mounting plate.

[0009] Preferably, the cutting assembly includes four guide columns installed on the top surface of the base. The four guide columns are evenly divided into two groups and are symmetrically distributed from left to right. A lifting frame that can move up and down is provided between each group of guide columns. The lifting frame has a straight slot that cooperates with the eccentric rod. A knife holder is installed between the opposite side surfaces of the two lifting frames. A cutting knife is installed on one outer surface of the knife holder.

[0010] Preferably, a cutting table is installed on the top surface of the base, the cutting table is placed between the lower pressure roller and the cutting blade, the height of the cutting table is the same as the height of the lower pressure roller, and a feeding plate is installed on the top surface of the base downstream of the cutting table.

[0011] Preferably, a guide ring is installed on the top surface of the base at a position upstream of the conveying assembly.

[0012] Beneficial effects

[0013] This invention provides a device for cutting extremely fine wire harnesses with anti-missing features. Compared with the prior art, it has the following advantages:

[0014] 1. This ultra-fine wire harness cutting device with anti-missed cut features synchronized and coordinated wire harness feeding and cutting actions when the motor is working normally, ensuring continuous and accurate cutting of the wire harness. If the motor malfunctions, the entire device will stop operating; the upper and lower pressure rollers will stop rotating, the wire harness will cease forward feeding, and the cutting blade will stop cutting, thus preventing missed cuts caused by partial cutting actions continuing due to motor failure.

[0015] 2. This ultra-fine wire harness cutting device with anti-missing cutting feature has multiple connecting screws fixedly connected to the driven gear and connecting plate. These connecting screws are connected to the mounting plate. This structure is designed to facilitate the replacement of the first synchronous pulley. By replacing the first synchronous pulley with one of different diameters, the speed ratio between the first and second synchronous pulleys can be changed, thereby adjusting the operating frequency of the cutting blade. This meets the cutting requirements of wire harnesses of different lengths, achieving precise cutting of wire harnesses of different lengths and improving the flexibility and adaptability of the device. Attached Figure Description

[0016] Figure 1 This is a three-dimensional appearance schematic diagram of the present utility model;

[0017] Figure 2 This is a three-dimensional view of the appearance of this utility model from another perspective;

[0018] Figure 3 This is a three-dimensional view of the conveying component of this utility model;

[0019] Figure 4 For practical purposes Figure 3 Enlarged view of point A in the image;

[0020] Figure 5 This is a three-dimensional appearance diagram of the linkage component of this utility model;

[0021] Figure 6 This is a three-dimensional appearance diagram of the cutting component of this utility model.

[0022] In the diagram: 1. Base; 2. Conveying assembly; 21. Roller seat; 22. Lower pressure roller; 23. Upper pressure roller; 24. Anti-slip roller sleeve; 25. Drive gear; 26. Motor; 27. Driven gear; 28. Connecting plate; 29. ​​Connecting screw; 3. Linkage assembly; 31. Mounting plate; 32. Connecting shaft; 33. First synchronous pulley; 34. Fixed seat; 35. Second synchronous pulley; 36. Eccentric rod; 37. Synchronous belt; 4. Cutting assembly; 41. Guide column; 42. Lifting frame; 43. Straight groove; 44. Knife holder; 45. Cutting knife; 5. Cutting table; 6. Feed plate; 7. Wire guide ring. 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] This utility model provides two technical solutions:

[0025] Figures 1-6 The first embodiment is shown: an ultra-fine wire harness cutting device with anti-leakage cutting, including a base 1, a conveying assembly 2 on the top of the base 1, and a cutting assembly 4 located downstream of the conveying assembly 2 on the top of the base 1. A linkage assembly 3 is provided between the conveying assembly 2 and the cutting assembly 4 for transmitting the power source of the conveying assembly 2 to the cutting assembly 4. The conveying assembly 2 includes two roller seats 21 mounted on the top surface of the base 1. A lower pressure roller 22 and an upper pressure roller 23 are installed between the opposite surfaces of the two roller seats 21. A driven gear 27 connected to the upper pressure roller 23 is provided on the outer side of one of the roller seats 21. A driving gear 25 fixedly connected to the lower pressure roller 22 is also provided on the outer side of the roller seat 21. The driving gear 25 and the driven gear 27 are connected to each other. The conveying assembly 2 also includes a motor 26 mounted on the top surface of the base 1, with the output shaft of the motor 26 connected to the drive gear 25. The number of linkage components 3 is set to two, and the two linkage components 3 are symmetrically distributed on the sides of the conveying assembly 2 and the cutting assembly 4. Each linkage component 3 includes a mounting plate 31 and a fixed seat 34. A connecting shaft 32 is fixedly connected to the mounting plate 31, and a first synchronous wheel 33 is mounted on the connecting shaft 32. The fixed seat 34 is fixedly mounted on the top surface of the base 1, and a second synchronous wheel 35 is rotatably mounted on the fixed seat 34. An eccentric rod 36 is installed on the opposite side end face of the two second synchronous wheels 35 near the edge, and a synchronous belt 37 is provided between the second synchronous wheel 35 and the first synchronous wheel 33.

[0026] Specifically, the output shaft of motor 26 is connected to drive gear 25, which meshes with driven gear 27, thereby driving the lower pressure roller 22 and upper pressure roller 23, which are installed between the two roller seats 21, to rotate in opposite directions, realizing the function of conveying the wire harness. At the same time, the linkage component 3 between the conveying component 2 and the cutting component 4 plays the role of transmitting power. Through the rotation of drive gear 25, the power is transmitted to the first synchronous pulley 33 through connecting shaft 32. Driven by synchronous belt 37, the second synchronous pulley 35 rotates synchronously. When the second synchronous pulley 35 rotates, the eccentric rod 36 on its edge will make a circular motion, which in turn drives the cutting blade 45 on the blade holder 44 to move up and down, realizing the cutting operation of the wire harness. Once motor 26 fails, the entire device will stop operating, that is, the upper pressure roller 23 and lower pressure roller 22 will stop rotating, the wire harness will no longer be conveyed forward, and the cutting blade 45 will also stop cutting.

[0027] In this embodiment, both the lower pressure roller 22 and the upper pressure roller 23 are fitted with anti-slip roller sleeves 24, and the two anti-slip roller sleeves 24 form a channel for conveying the wire harness.

[0028] Specifically, the anti-slip roller sleeves 24 fitted onto the surfaces of the lower pressure roller 22 and the upper pressure roller 23 cooperate with each other to form a channel specifically for conveying the wire harness. This design ensures that the wire harness is not prone to slipping during the conveying process, thus guaranteeing the stability and reliability of the wire harness conveying.

[0029] Figures 1-6 The second embodiment is shown. The main difference from the first embodiment is that: another roller seat 21 is provided with a connecting plate 28 connected to the upper pressure roller 23 on its outer side. Multiple connecting screws 29 are fixedly connected to both the driven gear 27 and the connecting plate 28. The connecting screws 29 are connected to the mounting plate 31.

[0030] Specifically, multiple connecting screws 29 are fixedly connected to both the driven gear 27 and the connecting plate 28, and these connecting screws 29 are connected to the mounting plate 31. This structure is designed primarily to facilitate the replacement of the first synchronous pulley 33. By replacing the first synchronous pulley 33 with one of different diameters, the rotational speed ratio between the first synchronous pulley 33 and the second synchronous pulley 35 can be changed, thereby adjusting the operating frequency of the cutting blade 45. This allows for the cutting of wire harnesses of different lengths, achieving precise cutting of wire harnesses of varying lengths and improving the flexibility and adaptability of the device.

[0031] In this embodiment, the cutting component 4 includes four guide posts 41 installed on the top surface of the base 1. The four guide posts 41 are divided into two groups and are symmetrically distributed from left to right. A lifting frame 42 that can move up and down is provided between each group of guide posts 41. The lifting frame 42 is provided with a straight slot 43 that cooperates with the eccentric rod 36. A knife holder 44 is installed between the opposite side surfaces of the two lifting frames 42. A cutting knife 45 is installed on one outer surface of the knife holder 44.

[0032] Specifically, the movement of the eccentric rod 36 will drive the lifting frame 42 to move up and down along the guide column 41 through the straight slot 43, thereby driving the knife holder 44 and the cutting knife 45 on it to move up and down, so as to realize the cutting operation of the wire harness.

[0033] In this embodiment, a cutting table 5 is installed on the top surface of the base 1. The cutting table 5 is placed between the lower pressure roller 22 and the cutting blade 45. The height of the cutting table 5 is the same as the height of the lower pressure roller 22. A feeding plate 6 is installed on the top surface of the base 1 downstream of the cutting table 5.

[0034] Specifically, when the cutting blade 45 moves up and down along the guide column 41 with the lifting frame 42, its blade edge moves downward to fit against the side of the cutting table 5. The side of the cutting table 5 serves as the cutting force surface for the cutting blade 45, ensuring that the cutting blade 45 can successfully complete the cutting task. The cut wire bundle will fall onto the feed plate 6, facilitating the collection and subsequent processing of the cut wire bundle.

[0035] In this embodiment, a guide ring 7 is installed on the top surface of the base 1 at a position upstream of the conveying assembly 2.

[0036] Specifically, the wire guide ring 7 can guide the wire bundle to be cut into the channel between the lower pressure roller 22 and the upper pressure roller 23 in an orderly manner, ensuring that the wire bundle is in the correct position and orientation when it enters the conveying assembly 2.

[0037] Furthermore, any content not described in detail in this specification is existing technology known to those skilled in the art.

[0038] Working Principle: First, the motor 26 is started, serving as the power source for the entire device. The motor 26 drives the drive gear 25 to rotate, which meshes with the driven gear 27, thereby causing the connected upper pressure roller 23 and lower pressure roller 22 to rotate in opposite directions, thus orderly conveying the wire harness forward. Simultaneously, the rotation of the drive gear 25 is transmitted to the first synchronous pulley 33 via the connecting shaft 32. Driven by the synchronous belt 37, the second synchronous pulley 35 rotates synchronously. When the second synchronous pulley 35 rotates, the eccentric rod 36 on its edge performs a circular motion, sliding within the straight groove 43 of the lifting frame 42. This pushes the lifting frame 42 to reciprocate up and down along the guide column 41, causing the cutting blade 45 on the blade holder 44 to move up and down, achieving the cutting operation of the wire harness.

[0039] When motor 26 is working normally, the wire harness feeding and cutting actions are synchronized and coordinated, ensuring that the wire harness is continuously and accurately cut. If motor 26 malfunctions, the entire device will stop operating; that is, the upper pressure roller 23 and lower pressure roller 22 will stop rotating, the wire harness will no longer be fed forward, and the cutting blade 45 will also stop cutting. Furthermore, an external control system monitors the working status of motor 26 in real time. Once motor 26 stops working, an alarm signal will be triggered, allowing relevant personnel to be notified of the malfunction immediately and to quickly take corresponding repair and adjustment measures, thus preventing missed cuts caused by the continued cutting action due to motor 26 failure.

[0040] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0041] 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 fine wire harness cutting device with anti-missing cutting feature, comprising a base (1), characterized in that: The base (1) is provided with a conveying component (2) at the top, and a cutting component (4) is provided at the position downstream of the conveying component (2) at the top of the base (1). A linkage component (3) is provided between the conveying component (2) and the cutting component (4) to transmit the power source of the conveying component (2) to the cutting component (4). The conveying assembly (2) includes two roller seats (21) mounted on the top surface of the base (1). A lower pressure roller (22) and an upper pressure roller (23) are mounted between the opposite side surfaces of the two roller seats (21). One of the roller seats (21) has a driven gear (27) connected to the upper pressure roller (23) on its outer side. The roller seat (21) also has a driving gear (25) fixedly connected to the lower pressure roller (22) on its outer side. The driving gear (25) meshes with the driven gear (27). The conveying assembly (2) also includes a motor (26) mounted on the top surface of the base (1). The output shaft end of the motor (26) is connected to the driving gear (25). The number of linkage components (3) is set to two. The two linkage components (3) are symmetrically distributed on the sides of the conveying component (2) and the cutting component (4). Both linkage components (3) include a mounting plate (31) and a fixed seat (34). A connecting shaft (32) is fixedly connected to the mounting plate (31). A first synchronous wheel (33) is installed on the connecting shaft (32). The fixed seat (34) is fixedly installed on the top surface of the base (1). A second synchronous wheel (35) is rotatably provided on the fixed seat (34). An eccentric rod (36) is installed on the opposite side end face of the two second synchronous wheels (35) near the edge. A synchronous belt (37) is provided between the second synchronous wheel (35) and the first synchronous wheel (33). The surfaces of the lower pressure roller (22) and the upper pressure roller (23) are both fitted with anti-slip roller sleeves (24), and the two anti-slip roller sleeves (24) form a channel for conveying the wire harness. The outer side of the other roller seat (21) is provided with a connecting plate (28) connected to the upper pressure roller (23). Multiple connecting screws (29) are fixedly connected to the driven gear (27) and the connecting plate (28). The connecting screws (29) are connected to the mounting plate (31). The cutting assembly (4) includes four guide columns (41) installed on the top surface of the base (1). The four guide columns (41) are divided into two groups and are symmetrically distributed. A lifting frame (42) that can move up and down is provided between each group of guide columns (41). The lifting frame (42) has a straight groove (43) that cooperates with the eccentric rod (36). A knife holder (44) is installed between the opposite side surfaces of the two lifting frames (42). A cutting knife (45) is installed on one outer surface of the knife holder (44). A cutting table (5) is installed on the top surface of the base (1). The cutting table (5) is placed between the lower pressure roller (22) and the cutting knife (45). The height of the cutting table (5) is the same as the height of the lower pressure roller (22). A feeding plate (6) is installed on the top surface of the base (1) downstream of the cutting table (5).

2. The ultra-fine wire harness cutting device with anti-missing cutting function according to claim 1, characterized in that: A guide ring (7) is installed on the top surface of the base (1) at a position upstream of the conveying assembly (2).

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