A slitting device for plastic cable tie production

Abstract

The utility model discloses a kind of slitting equipment for plastic cable tie production, it is related to cable tie production and processing technical field, including two parallel interval arrangement's conveyer belt, side baffle of conveyer belt extends to conveying direction, the extension part of side baffle of conveyer belt is equipped with the rotating shaft power connection with the drive rod of conveyer belt, rotating shaft surface is equipped with the runner alignment with conveyer belt, the middle part of runner surface is provided with annular protrusion, annular protrusion surface is provided with herringbone groove, runner surface is provided with a plurality of rubber boss along annular protrusion symmetry, annular blade is arranged between rubber boss and annular protrusion, by setting annular protrusion in the middle part of runner surface, and herringbone groove that is spaced apart and is adapted between cable tie connected part is opened in protrusion surface, the accurate positioning and orientation of cable tie connected structure are realized, effectively avoid cable tie deviation or misplacement in conveying process, ensure that blade can accurately act on connected connecting place when slitting, significantly reduce slitting scrap rate, improve product consistency.

Description

Technical Field

[0001] This utility model relates to the field of cable tie production and processing technology, and in particular to a cutting device for producing plastic cable ties. Background Technology

[0002] Plastic cable ties typically present a mesh-like integrated structure after production. The specific integrated state is determined by the injection mold. Generally speaking, the integrated part of the cable tie is located at the lock head, where there is a fishbone-like connecting structure that connects several cable ties.

[0003] Typically, plastic cable ties are conveyed into the slitting equipment via a conveyor belt. To ensure that the cable ties can be directly slitted upon entering the slitting equipment, two oppositely positioned conveyor belts are used to squeeze and clamp the cable ties. After being conveyed along the conveyor belt into the slitting equipment, the connecting structure is separated from the cable tie body by pressure cutting. This slitting method does not require operator supervision; the slitting device can be started intermittently in coordination with the conveyor belt speed to complete the slitting of the cable ties.

[0004] However, in actual use, the production speed of cable ties is relatively fast, and the conveyor belt needs to be in precise coordination with the starting pattern of the slitting equipment. During long-term use, the processing coordination between the conveyor belt and the slitting equipment will produce starting errors that affect the processing, causing the slitting equipment to malfunction when feeding. In addition, the slitting equipment can only process a group of connected cable ties at a time, resulting in low processing efficiency. Utility Model Content

[0005] To address the aforementioned problems, the purpose of this utility model is to provide a slitting device for the production of plastic cable ties, which solves the problems that cable ties cannot be slitted continuously and quickly, and that errors may occur during the slitting process due to equipment mismatch.

[0006] The technical solution of this utility model is as follows: it includes two parallel and spaced conveyor belts, the side baffles of the conveyor belts extend in the conveying direction, the extended part of the side baffles of the conveyor belts is provided with a rotating shaft that is poweredly connected to the drive rod of the conveyor belts, and the surface of the rotating shaft is provided with a rotating wheel that is aligned with the conveyor belts; The surface of the rotating wheel is provided with an annular protrusion in the middle, and a fishbone groove is opened on the surface of the annular protrusion. Several rubber bosses are symmetrically arranged on the surface of the rotating wheel along the annular protrusion, and an annular blade is arranged between the rubber bosses and the annular protrusion.

[0007] Furthermore, the rotating wheel is a solid, hard rubber-supported wheel-shaped structure. The rubber bosses and annular protrusions on the surface of the rotating wheel are integrally formed with the rotating wheel. The rubber bosses are smooth protrusions made of flexible rubber material with a hardness lower than that of cable ties. Through the composite structural design of rigid support and elastic buffer, the structural stability of the rotating wheel during high-speed rotation is ensured, avoiding positioning deviations caused by deformation. At the same time, the elastic deformation characteristics of the flexible rubber bosses are used to adaptively clamp the cable tie lock head, effectively preventing damage to the lock head caused by rigid contact. This also reduces the impact of conveyor vibration on cutting accuracy and extends the service life of the equipment.

[0008] Furthermore, the fishbone portions of the fishbone groove are evenly spaced, and the spacing between the fishbone portions of the fishbone groove matches the spacing between the connecting portions of the cable tie. The spacing between the fishbone portions of the fishbone groove and the spacing between the connecting portions of the cable tie are precisely matched to form a physical limiting structure, so that the connecting cable tie is forcibly embedded into the preset groove during the conveying process, completely eliminating the lateral offset caused by the speed fluctuation of the conveyor belt or the deformation of the cable tie, and ensuring that the annular blade always acts accurately at the connecting joint.

[0009] Furthermore, the shape of the rubber boss is adapted to the inner cavity of the cable tie lock head, and the rubber boss is correspondingly set to the fishbone part of the fishbone groove. The shape of the rubber boss is strictly adapted to the inner cavity of the cable tie lock head and is correspondingly set to the fishbone part of the fishbone groove, forming a dual constraint mechanism of "groove positioning + cavity clamping". The fishbone groove fixes the connecting position of the integrated body, and the rubber boss simultaneously fills the inner cavity of the lock head and applies radial pressure to realize the omnidirectional fixation of the cable tie in three-dimensional space, prevent the cable tie from twisting or warping during cutting, and ensure the flatness of the cut.

[0010] Furthermore, the annular protrusions on the surfaces of the two rollers are in direct contact, and the herringbone grooves on the two annular protrusions combine to form a chamber that adapts to the cable tie assembly. The chamber is horizontally aligned with the conveyor belt's conveying position, ensuring that the cable tie enters the slitting area without a transition drop, thus avoiding feeding jams caused by positional deviations. The enclosed chamber further isolates external vibration interference, ensuring continuous and precise engagement between the herringbone groove and the cable tie assembly, achieving zero-fault slitting under high-speed conveying.

[0011] Furthermore, there is no gap between the annular blades on the two rotating wheel surfaces, and the annular blades on each rotating wheel surface are set tightly against the annular protrusion. The design of the annular blades tightly against the annular protrusion ensures that the cutting force is concentrated at the joint, reducing the radial oscillation of the blades and extending the tool life by more than twice; at the same time, the cut surface is burr-free, reducing the cost of subsequent grinding processes.

[0012] Furthermore, the outer surface of the side baffle of the top conveyor belt is symmetrically provided with paddles, and the inner side of the side baffle of the bottom conveyor belt is provided with guide plates. The paddles can directly contact the cable tie passing through the annular blade, apply external force to the cable tie to ensure that the cable tie is completely separated from the integral structure, and the guide plates can ensure that the integral part of the cable tie will not continue to move with the wheel and separate.

[0013] The beneficial effects of this utility model are as follows: 1. This utility model achieves precise positioning and guidance of the cable tie structure by setting an annular protrusion in the middle of the rotating wheel surface and opening fishbone grooves on the protrusion surface that are adapted to the spacing of the cable tie connecting parts. This effectively avoids cable tie deviation or misalignment during the conveying process, ensures that the blade can accurately act on the connecting part during slitting, significantly reduces the slitting scrap rate, and improves product consistency.

[0014] 2. This utility model has symmetrical rubber bosses made of flexible rubber material on both sides of the annular protrusion, and their shape is adapted to the inner cavity of the cable tie lock head. The elastic deformation characteristics of rubber are used to form an adaptive clamping of the cable tie lock head, which not only provides sufficient conveying friction to prevent slippage, but also avoids damage to the lock head structure caused by rigid clamping. At the same time, the flexible buffering effect can absorb the vibration and impact during the conveying process and ensure the stability under high-speed conveying.

[0015] 3. The annular protrusions of the double rollers directly contact each other to form a closed chamber, and the annular blades are tightly connected to the protrusions without gaps, so that multiple sets of cable ties are simultaneously positioned, clamped and cut during the conveying process, realizing continuous assembly line operation. The number of single processing is reduced by the traditional single set limitation. Combined with the direct power connection design between the conveyor belt and the shaft, the feeding failure caused by the equipment start-up time difference is eliminated, and the cutting efficiency and equipment capacity are greatly improved. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the cable ties connecting the components. Figure 2 This is a schematic diagram of the overall structure of this utility model; Figure 3 This is a schematic diagram of the rotating wheel structure of this utility model; Figure 4 This is an enlarged schematic diagram of the rubber boss structure of this utility model.

[0017] Reference numerals: 1. Conveyor belt; 2. Shaft; 3. Roller; 4. Annular protrusion; 5. Herringbone groove; 6. Rubber boss; 7. Annular blade. Detailed Implementation

[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0019] like Figure 1-4 As shown, a cutting device for producing plastic cable ties includes two parallel and spaced conveyor belts 1. The side baffles of the conveyor belts 1 extend in the conveying direction. The extended part of the side baffles of the conveyor belts 1 is provided with a rotating shaft 2 that is poweredly connected to the drive rod of the conveyor belts 1. The surface of the rotating shaft 2 is provided with a rotating wheel 3 that is aligned with the conveyor belts 1. An annular protrusion 4 is provided in the middle of the surface of the rotating wheel 3. A herringbone groove 5 is opened on the surface of the annular protrusion 4. The annular protrusions 4 on the surfaces of the two rotating wheels 3 are in direct contact. The herringbone grooves 5 on the surfaces of the two annular protrusions 4 are combined to form a chamber that fits the cable tie assembly. The chamber is horizontally aligned with the conveyor belt 1, so that there is no transition drop when the cable tie enters the slitting area from the conveyor belt 1, avoiding feeding jamming caused by positional deviation. The closed chamber further isolates external vibration interference, ensuring that the herringbone groove 5 and the cable tie assembly continuously and accurately mesh, achieving zero-fault slitting under high-speed conveying. The surface of the rotating wheel 3 is symmetrically provided with several rubber protrusions 6 along the annular protrusion 4. The rotating wheel 3 is a solid, hard rubber-supported wheel-shaped structure. The rubber protrusions 6 and the annular protrusion 4 on the surface of the rotating wheel 3 are integrally formed with the rotating wheel 3. The rubber protrusions 6 are smooth protrusions made of flexible rubber material with a hardness lower than that of cable ties. Through the composite structural design of rigid support and elastic buffer, the structural stability of the rotating wheel 3 during high-speed rotation is ensured, avoiding positioning deviations caused by deformation. At the same time, the elastic deformation characteristics of the flexible rubber protrusions 6 are used to adaptively clamp the cable tie lock head, effectively preventing damage to the lock head caused by rigid contact. To reduce the impact of conveyor vibration on cutting accuracy and extend equipment life, the shape of the rubber boss 6 is adapted to the inner cavity of the cable tie lock head. The rubber boss 6 is correspondingly set to the fishbone part of the fishbone groove 5. The shape of the rubber boss 6 is strictly adapted to the inner cavity of the cable tie lock head and is correspondingly set to the fishbone part of the fishbone groove 5, forming a "groove positioning + cavity clamping" dual constraint mechanism. The fishbone groove 5 fixes the connecting position of the integrated body, and the rubber boss 6 simultaneously fills the inner cavity of the lock head and applies radial pressure to achieve omnidirectional fixation of the cable tie in three-dimensional space, preventing the cable tie from twisting or warping during cutting and ensuring the flatness of the cut. Between the rubber boss 6 and the annular protrusion 4, there is a ring blade 7. The fishbone portion of the fishbone groove 5 is evenly distributed, and the spacing of the fishbone portion of the fishbone groove 5 matches the spacing of the connecting portion of the cable tie. This precise matching of the spacing of the fishbone portion of the fishbone groove 5 with the spacing of the connecting portion of the cable tie forms a physical limiting structure. This forces the connecting cable tie into the preset groove during the conveying process, completely eliminating lateral offset caused by speed fluctuations of the conveyor belt 1 or cable tie deformation. This ensures that the ring blade 7 always acts precisely at the connecting joint. There is no gap between the ring blades 7 on the surfaces of the two rotating wheels 3. The ring blades 7 on the surface of each rotating wheel 3 are evenly distributed. All blades 7 are set close to the annular protrusions 4. The design of the annular blades 7 close to the annular protrusions 4 ensures that the cutting force is concentrated at the connection point, reducing the radial swing of the blades and extending the tool life by more than 3 times. At the same time, the cut surface is burr-free, reducing the cost of subsequent grinding processes. The outer surface of the side baffle of the top conveyor belt 1 is symmetrically provided with paddles, and the inner side of the side baffle of the bottom conveyor belt 1 is provided with guide plates. The paddles can directly contact the cable tie passing through the annular blades 7 and apply external force to the cable tie to ensure that the cable tie is completely separated from the integrated structure. The guide plates can ensure that the integrated part of the cable tie will not continue to move with the rotating wheel 3 to separate.

[0020] Working principle of this utility model: The conveyor belt 1 drives the rotating shaft 2 to rotate the two rotating wheels 3 synchronously. When the integrated plastic cable tie enters between the two rotating wheels 3, the herringbone groove 5 on the surface of the annular protrusion 4 in the middle of the rotating wheel 3 is precisely embedded in the connection of the cable tie to achieve positioning and guidance. At the same time, the rubber protrusions 6 symmetrically distributed on both sides of the annular protrusion 4 adaptively press the inner cavity of the cable tie lock head to form an elastic clamp. During the continuous feeding process of the conveyor belt 1, the annular protrusion 4 of the rotating wheel 3 fits tightly to form a closed processing cavity. The annular blade 7 close to the edge of the protrusion performs synchronous pressing and cutting on the integrated structure positioned by the herringbone groove 5, realizing the separation of the cable tie body from the connecting structure. The direct power connection design ensures that the speed of the conveyor belt 1 and the rotating wheel 3 are strictly matched, eliminating feeding failures caused by the time difference of the cutting start. The dual rotating wheel 3 structure can process multiple sets of cable ties simultaneously, realizing continuous and efficient cutting operations.

[0021] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A slitting device for producing plastic cable ties, comprising two parallel and spaced conveyor belts (1), side baffles of the conveyor belts (1) extending in the conveying direction, and a rotating shaft (2) provided on the extended portion of the side baffles of the conveyor belts (1) and poweredly connected to the drive rod of the conveyor belts (1), characterized in that: The surface of the rotating shaft (2) is provided with a rotating wheel (3) aligned with the conveyor belt (1); The rotating wheel (3) has an annular protrusion (4) in the middle of its surface. The annular protrusion (4) has a fishbone groove (5) on its surface. The rotating wheel (3) has several rubber bosses (6) symmetrically arranged along the annular protrusion (4). An annular blade (7) is arranged between the rubber bosses (6) and the annular protrusion (4).

2. The slitting equipment for producing plastic cable ties according to claim 1, characterized in that: The rotating wheel (3) is a solid, hard rubber-supported wheel structure. The rubber boss (6) and annular protrusion (4) on the surface of the rotating wheel (3) are integrally formed with the rotating wheel (3). The rubber boss (6) is a smooth protrusion made of flexible rubber material with a hardness less than that of cable ties.

3. The slitting equipment for producing plastic cable ties according to claim 1, characterized in that: The fishbone portions of the fishbone groove (5) are evenly spaced, and the spacing between the fishbone portions of the fishbone groove (5) is adapted to the spacing between the connected portions of the cable tie.

4. The slitting equipment for producing plastic cable ties according to claim 3, characterized in that: The shape of the rubber boss (6) is adapted to the inner cavity of the cable tie lock head, and the rubber boss (6) is correspondingly set with the fishbone part of the fishbone groove (5).

5. A slitting device for producing plastic cable ties according to claim 3, characterized in that: The annular protrusions (4) on the surfaces of the two rollers (3) are in direct contact, and the fishbone grooves (5) on the surfaces of the two annular protrusions (4) combine to form a chamber that adapts to the cable tie connection part. The chamber is horizontally aligned with the conveying position of the conveyor belt (1).

6. The slitting equipment for producing plastic cable ties according to claim 1, characterized in that: There is no gap between the annular blades (7) on the surfaces of the two rotating wheels (3), and the annular blades (7) on the surface of each rotating wheel (3) are set in close contact with the annular protrusions (4).

7. A slitting device for producing plastic cable ties according to claim 1, characterized in that: The outer surface of the side baffle of the top conveyor belt (1) is symmetrically provided with paddles, and the inner side of the side baffle of the bottom conveyor belt (1) is provided with guide plates.

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