Cutting device for resistor material strip
By designing a detachable progressive cutting module and an inclined chip removal structure, the problems of edge tearing and high cost in traditional resistance strip cutting devices are solved, achieving efficient and low-cost resistance strip cutting.
Patent Information
- Application Number
- CN202511913596.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-12-18
- Publication Date
- 2026-03-03
AI Technical Summary
Traditional resistance tape cutting devices are prone to tearing of tape edges, dulling of blades, deformation and breakage during the cutting process. Furthermore, the cost of replacing the device is high and it is difficult to adapt to tapes of different sizes.
A cutting device comprising a base, a cutting module, and a guide module is designed. The cutting module consists of detachable left and right cutting components. It reduces resistance through progressive cutting and discharges waste through an inclined chip discharge port. The cutting components are detachable to reduce costs.
This technology enables smooth cutting of the resistance strip, reduces edge tearing, lowers production costs, and improves the adaptability and cutting efficiency of the equipment.
Smart Images
Figure CN121589880A_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of resistor manufacturing technology, and in particular to a cutting device for resistor strips. Background Technology
[0002] like Figure 1 The diagram shows the structure of an infinitely extended resistance strip 10. In actual production, the edges of the resistance strip 10 need to be cut (e.g., ...). Figure 2 As shown in the figure, in order to obtain the finished strip material that meets the production requirements.
[0003] Traditional cutting devices for resistance strips mainly have an eye die on the cutting device, which allows the resistance strip 10 to pass through the eye die under the action of external force, thereby achieving the cutting treatment of the edge of the resistance strip 10.
[0004] Traditional cutting devices for resistance strips cut the strip 10 to a specified amount in a single pass through the die. This undoubtedly increases the resistance resistance as the strip passes through the die, making the edges of the strip prone to tearing, and causing the die's cutting edge to become dull, deformed, or broken. Furthermore, when the die on the cutting device reaches its lifespan limit, the entire cutting device needs to be replaced, resulting in significant waste of production costs.
[0005] Since the size of the resistive material strip 10 to be processed is usually larger than the eye mold, it is very difficult to pass one end of the resistive material strip 10 to be processed through the eye mold 101. Production line workers need to perform pre-processing such as cutting the edge of the resistive material strip 10, which is time-consuming and labor-intensive. Summary of the Invention
[0006] The purpose of this invention is to overcome the shortcomings of the prior art and provide a cutting device for resistor strips.
[0007] The objective of this invention is achieved through the following technical solution: A cutting device for resistance strip includes: a base, a cutting module, and a guiding module; The base has a through eye mold, and the base has a left inclined surface and a right inclined surface, which are located on both sides of the eye mold, respectively. The cutting module includes a left cutting component and a right cutting component. A left mounting groove is formed on the left inclined surface, and a right mounting groove is formed on the right inclined surface. The left cutting component is installed in the left mounting groove, and the right cutting component is installed in the right mounting groove. The guide module includes a left guide component and a right guide component, which are disposed on the base and located on both sides of the eye mold, respectively.
[0008] In one embodiment, The left-side cutting assembly has a plurality of left-side cutting blades, which are stacked sequentially in the left-side mounting slot; the right-side cutting assembly has a plurality of right-side cutting blades, which are stacked sequentially in the right-side mounting slot. A plurality of left-side cutting blades and a plurality of right-side cutting blades are symmetrically arranged on both sides of the eye mold, and two mutually symmetrical left-side cutting blades and right-side cutting blades form a pair of cutting blade groups; The left cutting tool has a left cutting edge, and the right cutting tool has a right cutting edge. Let L be the distance between the left cutting edge and the right cutting edge in each pair of cutting tool groups. As the resistive material strip enters the eye mold along the feeding direction, the distance L between the left and right cutting edges in the several pairs of cutting blades gradually decreases.
[0009] In one embodiment, The left guide assembly includes a left fixing block and a left guide block. The left fixing block is fixed to the base, and the left guide block slides on the base. The left guide block and the left fixing block are connected by a left adjusting thread. The right-side guide assembly includes a right-side fixing block and a right-side guide block. The right-side fixing block is fixed to the base, and the right-side guide block slides on the base. The right-side guide block and the right-side fixing block are connected by a right-side adjusting thread. The left guide block has a left guide groove, and the right guide block has a right guide groove.
[0010] In one embodiment, the base is provided with a left sliding guide groove and a right sliding guide groove, the left guide block is provided with a left sliding guide block corresponding to the left sliding guide groove, and the right guide block is provided with a right sliding guide block corresponding to the right sliding guide groove.
[0011] In one embodiment, the left fixing block is fastened to the base by a left fixing bolt, and the right fixing block is fastened to the base by a right fixing bolt.
[0012] In one embodiment, a plurality of the left-side cutting blades are mounted in the left-side mounting slot by left-side locking bolts, and a plurality of the right-side cutting blades are mounted in the right-side mounting slot by right-side locking bolts.
[0013] In one embodiment, a left-side inclined chip discharge port is formed between the left-side inclined surface and the left-side guide component, and a right-side inclined chip discharge port is formed between the right-side inclined surface and the right-side guide component.
[0014] In one embodiment, the left-side cutting assembly has a first left-side cutting tool and a second left-side cutting tool, and the right-side cutting assembly has a second right-side cutting tool and a second right-side cutting tool, wherein the first left-side cutting tool and the first right-side cutting tool form a pair of cutting tool sets, and the second left-side cutting tool and the second right-side cutting tool form a pair of cutting tool sets; The distance between the left cutting edge of the first left cutting tool and the right cutting edge of the first right cutting tool is L1, and the distance between the left cutting edge of the second left cutting tool and the right cutting edge of the second right cutting tool is L2, where L1 < L2.
[0015] The cutting device for resistor strip of the present invention has the following main technical effects: 1. Based on the detachability of the cutting module, the resistance strip is first passed through the eye mold, and then the cutting module is installed, so that the left and right cutting edges are pressed tightly against the edge of the resistance strip, which facilitates the resistance strip to pass smoothly through the eye mold. 2. The distance L between the left and right cutting edges in several pairs of cutting tool sets gradually decreases. The edge of the resistance strip is cut by a "small amount, multiple times" cutting method, rather than completing the cutting in one go. This reduces the resistance encountered by the resistance strip during the cutting process, making the edge of the resistance strip less likely to be torn and the cutting process smoother. 3. Based on the detachable nature of the cutting module, the old left and right cutting components can be removed in a timely manner, and the new left and right cutting components can be reinstalled, reducing production costs; 4. Relative to the straight feeding direction of the resistance strip, the left cutting component and the right cutting component are inlaid in the left mounting slot and the right mounting slot in an inclined manner. Several left cutting blades and several right cutting blades are symmetrically arranged on both sides of the eye mold. Several left cutting blades and several right cutting blades on both sides of the eye mold form a stable triangular structure. During the straight movement of the resistance strip, a component force will be generated. The left cutting blades and the right cutting blades will not break due to the vertical force perpendicular to the blade body. 5. A left-side inclined chip discharge port is formed between the left-side inclined surface and the left-side guide component, and a right-side inclined chip discharge port is formed between the right-side inclined surface and the right-side guide component. Waste filaments will be smoothly discharged through the left-side inclined chip discharge port and the right-side inclined chip discharge port, so as not to cause waste accumulation. Attached Figure Description
[0016] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of the present invention and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.
[0017] Figure 1 This is a structural diagram of an infinitely long resistive strip; Figure 2 To Figure 1 A schematic diagram showing the cutting of the edge of the resistor strip; Figure 3 This is a structural diagram of a cutting device for resistor strip according to an embodiment of the present invention; Figure 4 for Figure 3 An exploded view of the cutting device for resistance strip shown; Figure 5 for Figure 3 A partial view of the cutting device for resistance strip shown; Figure 6 for Figure 5 A partially exploded view of the cutting device for resistance strip shown; Figure 7 for Figure 5 The diagram shows the structure of the cutting assembly on the left. Figure 8 for Figure 5 The diagram shows the structure of the cutting assembly on the right. Figure 9 for Figure 5 A perspective sectional view of the cutting device for resistance strip shown; Figure 10 for Figure 5 The diagram shows a planar sectional view of the cutting device used for resistance strip. Detailed Implementation
[0018] To facilitate understanding of the present invention, a more complete description will be given below with reference to the accompanying drawings. Preferred embodiments of the invention are shown in the drawings. However, the invention can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to provide a thorough and complete understanding of the disclosure of the invention.
[0019] It should be noted that when an element is referred to as being "fixed to" another element, it can be directly attached to the other element or there may be an intervening element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementation.
[0020] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.
[0021] like Figure 3 and Figure 4 As shown, the present invention discloses a cutting device 20 for resistor strips, comprising: a base 100, a cutting module 200 (e.g., ... Figure 5 and Figure 6 (as shown), guide module 300.
[0022] A through eye mold 101 is provided on the base 100 (e.g. Figure 5 As shown), the base 100 has a left inclined surface 110 and a right inclined surface 120 (as shown). Figure 6 As shown), the left inclined surface 110 and the right inclined surface 120 are located on both sides of the eye mold 101; like Figure 5 and Figure 6 As shown, the cutting module 200 includes a left cutting assembly 210 and a right cutting assembly 220, and a left mounting groove 111 is provided on the left inclined surface 110 (e.g., ...). Figure 6 As shown), a right-side mounting groove 121 is provided on the right-side inclined surface 120 (e.g. Figure 6 As shown), the left cutting assembly 210 is installed in the left mounting slot 111, and the right cutting assembly 220 is installed in the right mounting slot 121. like Figure 3 As shown, the guide module 300 includes a left guide component 310 and a right guide component 320, which are disposed on the base 100 and located on both sides of the eye mold 101.
[0023] The specific structure of the cutting module 200 is described below: like Figure 4 , Figure 6 and Figure 7As shown, the left-side cutting assembly 210 has a plurality of left-side cutting blades 211, which are stacked sequentially within the left-side mounting groove 111; as Figure 4 , Figure 6 and Figure 8 As shown, the right-side cutting assembly 220 has a plurality of right-side cutting blades 221, which are stacked sequentially in the right-side mounting groove 121. like Figure 9 and Figure 10 As shown, a number of left-side cutting blades 211 and a number of right-side cutting blades 221 are symmetrically arranged on both sides of the eye mold 101, and two mutually symmetrical left-side cutting blades 211 and right-side cutting blades 221 form a pair of cutting blade groups. The left-side cutting tool 211 has a left-side cutting edge 212 (e.g.) Figure 7 As shown), the right-side cutting tool 221 has a right-side cutting edge 222 (as shown). Figure 8 As shown), let L be the distance between the left cutting edge 212 and the right cutting edge 222 in each pair of cutting tool sets (e.g., ...). Figure 10 (as shown) As the resistance material enters the eye mold 101 along the feeding direction, the distance L between the left cutting edge 212 and the right cutting edge 222 in several pairs of cutting tool sets gradually decreases.
[0024] like Figure 9 and Figure 10 As shown, for example, the left cutting assembly 210 has a first left cutting tool and a second left cutting tool, and the right cutting assembly 220 has a second right cutting tool and a second right cutting tool. The first left cutting tool and the first right cutting tool form a pair of cutting tool groups, and the second left cutting tool and the second right cutting tool form a pair of cutting tool groups. The distance between the left cutting edge of the first left cutting tool and the right cutting edge of the first right cutting tool is L1, and the distance between the left cutting edge of the second left cutting tool and the right cutting edge of the second right cutting tool is L2, where L1 < L2.
[0025] The specific structure of the guide module 300 is described below: like Figure 4 As shown, the left guide assembly 310 includes a left fixing block 311 and a left guide block 312. The left fixing block 311 is fixed on the base 100, and the left guide block 312 slides on the base 100. The left guide block 312 and the left fixing block 311 are connected by a left adjusting thread 313. like Figure 4As shown, the right guide assembly 320 includes a right fixing block 321 and a right guide block 322. The right fixing block 321 is fixed on the base 100, and the right guide block 322 slides on the base 100. The right guide block 322 and the right fixing block 321 are connected by a right adjusting thread 323. like Figure 4 As shown, a left guide groove 314 is provided on the left guide block 312, and a right guide groove 324 is provided on the right guide block 322.
[0026] like Figure 4 As shown, in this embodiment, the base 100 is provided with a left sliding guide groove 130 and a right sliding guide groove 140. The left guide block 312 is provided with a left sliding guide block 315 corresponding to the left sliding guide groove 130, and the right guide block 322 is provided with a right sliding guide block 325 corresponding to the right sliding guide groove 140.
[0027] like Figure 4 As shown, specifically, the left fixing block 311 is fastened to the base 100 by the left fixing bolt 316, and the right fixing block 321 is fastened to the base 100 by the right fixing bolt 326; a number of left cutting blades 211 are installed in the left mounting groove 111 by the left locking bolt 213, and a number of right cutting blades 221 are installed in the right mounting groove 121 by the right locking bolt 223.
[0028] like Figure 5 As shown, in this invention, a left inclined chip discharge port 400 is formed between the left inclined surface 110 and the left guide component 310, and a right inclined chip discharge port 500 is formed between the right inclined surface 120 and the right guide component 320.
[0029] The working principle of the cutting device 20 for resistance strip described above will be explained below: One end of the resistance strip 10 to be cut is inserted into the eye mold 101. After the resistance strip 10 passes through the eye mold 101, a tensioning machine is connected to it. The tensioning machine applies tension to the resistance strip 10, so that the resistance strip 10 can obtain external force and continuously pass through the eye mold 101 to achieve edge cutting. The cutting module 200 is installed, with the left cutting component 210 installed in the left mounting slot 111 and the right cutting component 220 installed in the right mounting slot 121. Before installing the cutting module 200, one end of the resistance strip 10 is passed through the eye mold 101, allowing the resistance strip 10 to pass smoothly through the eye mold 101 without obstruction from the cutting module 200. Then, the cutting module 200 is installed, and the left cutting component 210 and the right cutting component 220 are fastened to the mounting slots with fasteners. This allows the left cutting edge 212 and the right cutting edge 222 to press tightly against the edge of the resistance strip 10, preparing for subsequent cutting. Install the guide module 300, fix the left fixing block 311 and the right fixing block 321 on the base 100, slide the left guide block 312 and the right guide block 322 on the base 100, connect the left guide block 312 and the left fixing block 311 together through the left adjusting thread 313, and connect the right guide block 322 and the right fixing block 321 together through the right adjusting thread 323. Adjust the left adjusting thread 313 and the right adjusting thread 323 to change the distance between the left guide block 312 and the right guide block 322, and thus change the distance between the left guide groove 314 and the right guide groove 324. Since the resistance strip 10 passes through the left guide groove 314 and the right guide groove 324, the distance between the left guide groove 314 and the right guide groove 324 can be changed to accommodate resistance strips 10 of different sizes, so that the resistance strip 10 can pass through the eye mold 101 more accurately and smoothly. In several pairs of cutting tool sets, the distance L between the left cutting edge 212 and the right cutting edge 222 gradually decreases. As the resistance strip 10 passes through the eye mold 101, the first pair of cutting tool sets first performs preliminary cutting on the resistance strip 10, followed by the second pair of cutting tool sets performing secondary cutting, and so on. After passing through several cutting tool sets, the resistance strip 10 can achieve the predetermined cutting amount. It can be seen that by setting several cutting tool sets, the edge of the resistance strip 10 is cut by a "small amount, multiple times" cutting method, rather than completing the cutting in one go. This reduces the resistance encountered by the resistance strip 10 during the cutting process, making it less likely for the edge of the resistance strip 10 to be torn, and the cutting process is smoother. During prolonged cutting, the left cutting edge 212 and the right cutting edge 222 will become dull and lose their sharpness, which directly affects the cutting quality. Therefore, the old left cutting assembly 210 and right cutting assembly 220 can be removed in time, and the new left cutting assembly 210 and right cutting assembly 220 can be reinstalled. The traditional method is to cut the cutting edge directly at the eye mold 101. This cutting edge is integrally formed with the base 100. After the cutting edge becomes dull, the entire base 100 is replaced directly, which results in a huge waste of production costs. In this invention, the left cutting component 210 is installed in the left mounting groove 111 of the left inclined surface 110, and the right cutting component 220 is installed in the right mounting groove 121 of the right inclined surface 120. It can be seen that, relative to the straight feeding direction of the resistance material strip 10, the left cutting component 210 and the right cutting component 220 are inlaid in the left mounting groove 111 and the right mounting groove 121 in an inclined manner. During the straight movement of the resistance material strip 10, a component force will be generated, and the left cutting blade 211 and the right cutting blade 221 will not break due to the vertical force perpendicular to the blade body. Several left-side cutting blades 211 and several right-side cutting blades 221 are symmetrically arranged on both sides of the eye mold 101, and both the left-side cutting blades 211 and the right-side cutting blades 221 are inclined. It can be seen that the several left-side cutting blades 211 and the several right-side cutting blades 221 on both sides of the eye mold 101 form a stable triangular structure, which is very stable. During the cutting process of the resistance strip 10, waste wires are generated. A left inclined chip discharge port 400 is formed between the left inclined surface 110 and the left guide component 310, and a right inclined chip discharge port 500 is formed between the right inclined surface 120 and the right guide component 320. In this way, the waste wires will be smoothly discharged through the left inclined chip discharge port 400 and the right inclined chip discharge port 500, so as not to cause waste accumulation. The cutting device 20 for resistor strip of the present invention has the following main technical effects: 1. Based on the detachability of the cutting module 200, the resistance strip 10 is first passed through the eye mold 101, and then the cutting module 200 is installed, so that the left cutting edge 212 and the right cutting edge 222 are pressed tightly against the edge of the resistance strip 10, so that the resistance strip 10 can pass smoothly through the eye mold 101. 2. The distance L between the left cutting edge 212 and the right cutting edge 222 in several pairs of cutting tool sets gradually decreases. The edge of the resistance strip 10 is cut by a "small amount and multiple times" cutting method, instead of completing the cutting in one go. This reduces the resistance encountered by the resistance strip 10 during the cutting process, and the edge of the resistance strip 10 is not easily torn, making the cutting process smoother. 3. Based on the detachability of the cutting module 200, the old left cutting assembly 210 and right cutting assembly 220 can be removed in a timely manner, and the new left cutting assembly 210 and right cutting assembly 220 can be reinstalled, thereby reducing production costs; 4. Relative to the straight feeding direction of the resistance strip 10, the left cutting assembly 210 and the right cutting assembly 220 are inlaid in the left mounting groove 111 and the right mounting groove 121 in an inclined manner. A number of left cutting blades 211 and a number of right cutting blades 221 are symmetrically arranged on both sides of the eye mold 101. The number of left cutting blades 211 and a number of right cutting blades 221 on both sides of the eye mold 101 form a stable triangular structure. During the straight movement of the resistance strip 10, a component force will be generated. The left cutting blades 211 and the right cutting blades 221 will not break due to the vertical force perpendicular to the blade body. 5. A left inclined chip discharge port 400 is formed between the left inclined surface 110 and the left guide component 310, and a right inclined chip discharge port 500 is formed between the right inclined surface 120 and the right guide component 320. Waste filaments will be smoothly discharged through the left inclined chip discharge port 400 and the right inclined chip discharge port 500, so as not to cause waste accumulation.
[0030] The embodiments described above are merely illustrative of several implementations of the present invention, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the invention patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of the present invention, and these all fall within the protection scope of the present invention. Therefore, the protection scope of this invention patent should be determined by the appended claims.
Claims
1. A cutting device for resistance strip, characterized in that, include: Base, cutting module, guide module; The base has a through eye mold, and the base has a left inclined surface and a right inclined surface, which are located on both sides of the eye mold, respectively. The cutting module includes a left cutting component and a right cutting component. A left mounting groove is formed on the left inclined surface, and a right mounting groove is formed on the right inclined surface. The left cutting component is installed in the left mounting groove, and the right cutting component is installed in the right mounting groove. The guide module includes a left guide component and a right guide component, which are disposed on the base and located on both sides of the eye mold, respectively.
2. The cutting device for resistance strip according to claim 1, characterized in that, The left-side cutting assembly has a plurality of left-side cutting blades, which are stacked sequentially in the left-side mounting slot; the right-side cutting assembly has a plurality of right-side cutting blades, which are stacked sequentially in the right-side mounting slot. A plurality of left-side cutting blades and a plurality of right-side cutting blades are symmetrically arranged on both sides of the eye mold, and two mutually symmetrical left-side cutting blades and right-side cutting blades form a pair of cutting blade groups; The left cutting tool has a left cutting edge, and the right cutting tool has a right cutting edge. Let L be the distance between the left cutting edge and the right cutting edge in each pair of cutting tool groups. As the resistive material strip enters the eye mold along the feeding direction, the distance L between the left and right cutting edges in the several pairs of cutting blades gradually decreases.
3. The cutting device for resistance strip according to claim 1 or 2, characterized in that, The left guide assembly includes a left fixing block and a left guide block. The left fixing block is fixed to the base, and the left guide block slides on the base. The left guide block and the left fixing block are connected by a left adjusting thread. The right-side guide assembly includes a right-side fixing block and a right-side guide block. The right-side fixing block is fixed to the base, and the right-side guide block slides on the base. The right-side guide block and the right-side fixing block are connected by a right-side adjusting thread. The left guide block has a left guide groove, and the right guide block has a right guide groove.
4. The cutting device for resistance strip according to claim 3, characterized in that, The base is provided with a left sliding guide groove and a right sliding guide groove. The left guide block is provided with a left sliding guide block corresponding to the left sliding guide groove, and the right guide block is provided with a right sliding guide block corresponding to the right sliding guide groove.
5. The cutting device for resistance strip according to claim 3, characterized in that, The left fixing block is fastened to the base by the left fixing bolt, and the right fixing block is fastened to the base by the right fixing bolt.
6. The cutting device for resistance strip according to claim 2, characterized in that, Several of the left-side cutting tools are mounted in the left-side mounting slot via left-side locking bolts, and several of the right-side cutting tools are mounted in the right-side mounting slot via right-side locking bolts.
7. The cutting device for resistance strip according to claim 1, characterized in that, A left-side inclined chip discharge port is formed between the left-side inclined surface and the left-side guide component, and a right-side inclined chip discharge port is formed between the right-side inclined surface and the right-side guide component.
8. The cutting device for resistance strip according to claim 2, characterized in that, The left-side cutting assembly has a first left-side cutting tool and a second left-side cutting tool, and the right-side cutting assembly has a second right-side cutting tool and a second right-side cutting tool. The first left-side cutting tool and the first right-side cutting tool form a pair of cutting tool groups, and the second left-side cutting tool and the second right-side cutting tool form a pair of cutting tool groups. The distance between the left cutting edge of the first left cutting tool and the right cutting edge of the first right cutting tool is L1, and the distance between the left cutting edge of the second left cutting tool and the right cutting edge of the second right cutting tool is L2, where L1 < L2.