Novel cutter mechanism of raw material belt winding machine

Abstract

The utility model discloses a novel cutter mechanism of a raw material belt winding machine, which comprises a rack and a main shaft arranged on the rack, one end of the main shaft is provided with a first fixing ring, the other end of the main shaft is provided with a second fixing ring, a plurality of cutters are sleeved between the first fixing ring and the second fixing ring, fine adjustment components are arranged among the cutters, and the fine adjustment components are arranged on the main shaft. The fine adjustment assembly comprises a first clamping ring and a second clamping ring which are attached to each other, the first clamping ring is provided with a clamping table top, the second clamping ring is provided with a clamping protruding edge, the fine adjustment assembly is arranged between the cutters, and the thickness between the clamping table tops can be set in advance according to actual needs; when the width of the raw material belt produced by the winding machine deviates from the preset width, the distance between the cutters can be accurately and finely adjusted by rotating the second clamping ring, so that the width of all the slit raw material belts is ensured to be within a qualified size range, and defective products are prevented from being generated and the production schedule is prevented from being influenced.

Description

Technical Field

[0001] This utility model belongs to the field of raw material tape production technology, and specifically relates to a cutting mechanism for a novel raw material tape winding machine. Background Technology

[0002] PTFE tape is a commonly used auxiliary material in liquid pipeline installation. It is used at pipe joints to enhance the airtightness of the pipe joints. PTFE tape is usually produced using a winding machine. During the production process, the PTFE tape produced is relatively wide, so it needs to be cut by a cutting mechanism.

[0003] For example, Chinese utility model patent application number "CN210940411U" discloses a cutting mechanism for a raw material conveyor belt thermoforming machine. The mechanism includes a shaft, a first fixing plate fixedly connected to one side of the shaft, and a second fixing plate fixedly connected to the other side of the shaft. Two screws are connected to the first fixing plate, each screw having a baffle fixedly connected to one end, and the other end of each screw passing through the second fixing plate. A fixing nut is threaded onto the other end of each screw. Several fixing seats are fixedly connected to the shaft, located between the first and second fixing plates. Adjusting nuts are connected to both sides of each fixing seat and fixed to the screws. A first groove is formed on one side of each fixing seat, and a clamping plate is connected to each first groove via a locking mechanism. A second groove is formed on one side of each clamping plate, and a blade is fixedly connected to each second groove via screws. This utility model has a simple structure and is worth promoting.

[0004] Although the cutting mechanism can adjust the spacing between the cutters, it can only make a rough adjustment of the cutter position by moving the fixed base. It cannot accurately fine-tune the spacing between the cutters. When the width of the raw material strip produced by the winding machine deviates from the predetermined width, the width of the raw material strip between the two outermost cutters will also deviate because the spacing between each cutter cannot be accurately fine-tuned. This results in defective products, waste, and affects the production progress.

[0005] In view of this, the applicant conducted in-depth research on the above-mentioned issues, which led to the occurrence of this case. Utility Model Content

[0006] The purpose of this invention is to provide a cutting mechanism for a new type of raw material tape winding machine that can finely adjust the spacing of the cutting blades.

[0007] To achieve the above objectives, this utility model adopts the following technical solution:

[0008] A novel cutting mechanism for a raw material tape winding machine includes a frame and a main shaft mounted on the frame. The main shaft has a first fixing ring at one end near the frame and a second fixing ring at the other end. Multiple cutters are sleeved between the first and second fixing rings. The key feature is that each cutter is equipped with a fine-tuning component. A spring is sleeved on the main shaft near the second fixing ring, with one end of the spring abutting against the second fixing ring and the other end abutting against a cutter. The fine-tuning component includes a first retaining ring and a second retaining ring that fit together. The side of the first retaining ring facing the second retaining ring is the first contact surface. The side of the second retaining ring facing the first retaining ring is the second contact surface. The first contact surface is provided with a plurality of retaining parts, which are arranged in a ring array. Each retaining part includes a plurality of retaining platforms arranged in a ring. The thickness between each adjacent retaining platform in the same retaining part increases sequentially. The second contact surface is provided with a plurality of retaining protrusions at equal intervals in a ring, which correspond to the shape of the retaining platforms. The number of retaining protrusions corresponds to the number of retaining parts. The retaining protrusions are recessed with mounting grooves, and elastic elements are fixed in the mounting grooves. The retaining platforms are recessed with retaining grooves for the elastic elements to be retained.

[0009] Furthermore, the first retaining ring and the second retaining ring are coaxially arranged, and a fixing groove is also provided on the main shaft. The fixing groove is arranged along the length direction of the main shaft. The first retaining ring is provided with a fixing block that can extend into the fixing groove, and the outer side of the second retaining ring is also provided with a recessed groove.

[0010] Furthermore, a threaded post is provided on the side of the first fixed ring near the second fixed ring, and a rotating ring is sleeved on the main shaft that is threadedly engaged with the threaded post. One side of the rotating ring is threadedly connected to the threaded post, and the other side abuts against the fine-tuning assembly.

[0011] Furthermore, the frame is also provided with a drive mechanism for driving the spindle to rotate. The end of the spindle near the frame is also provided with a mounting plate. The drive mechanism is fixed on the mounting plate. A bearing seat is fixed on the mounting plate. The spindle is rotatably mounted on the bearing seat.

[0012] Furthermore, the drive mechanism includes a drive motor fixed on the mounting plate. The drive motor drives the main shaft to rotate through a pulley transmission assembly. The pulley transmission assembly includes a first pulley fixed on the output end of the drive motor, a second pulley fixed on one end of the main shaft near the frame, and a belt sleeved on the first pulley and the second pulley.

[0013] Furthermore, the bearing housing is provided with a locking pin, which passes through the bearing housing and extends to the spindle. The spindle is provided with a keyway for the locking pin to be inserted at the position corresponding to the locking pin.

[0014] Furthermore, the main shaft is also provided with a protective cover, and the bearing seat near the first retaining ring is also provided with a mounting base for installing the protective cover, and the protective cover is rotatably mounted on the mounting base.

[0015] Furthermore, the frame is also provided with a longitudinal movement mechanism for pushing the mounting plate to move vertically. The output end of the longitudinal movement mechanism is fixedly connected to the mounting plate. The frame is also provided with a slide rail and a slide block that can move on the slide rail. The mounting plate is fixed on the slide block. The slide rail is arranged in the same direction as the movement of the longitudinal movement mechanism.

[0016] By adopting the aforementioned design scheme, the beneficial effects of this utility model are:

[0017] The cutting mechanism of this utility model, by setting a fine-tuning component between the cutters, allows the thickness between each clamping platform to be set in advance according to actual needs. When the width of the raw material strip produced by the winding machine deviates from the predetermined width, the distance between the cutters can be finely adjusted by rotating the second clamping ring, thereby ensuring that the width of all cut raw material strips is within the qualified size range, avoiding the production of defective products and affecting the production progress.

[0018] Furthermore, a rotating ring and threaded post are provided, which allows for fine-tuning of the position of the cutter on the spindle and the overall position of the fine-tuning assembly.

[0019] Furthermore, a locking pin is provided to fix the spindle when fine-tuning the distance between the first and second retaining rings, so that the spindle will not rotate with the second retaining ring.

[0020] Furthermore, the protective cover can prevent workers from being injured by the cutter during operation, effectively prevent dust from entering the cutter and fine-tuning components, and improve their service life; by setting a longitudinal movement mechanism, the mounting plate can move on the slide rail, and the cutter can be lifted when winding the raw material tape, making operation convenient. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the cutting mechanism of this utility model mounted on the frame; the protective cover is omitted in the diagram.

[0022] Figure 2 This is a schematic diagram showing the disassembled cutting blade and fine-tuning component in the cutting mechanism of this utility model.

[0023] Figure 3 This is a schematic diagram showing another perspective of the disassembly of the cutter and fine-tuning components in the cutting mechanism of this utility model.

[0024] Figure 4 This is a schematic diagram of the cutting mechanism of this utility model mounted on the frame.

[0025] In the picture:

[0026] 1-Spindle; 10-Frame;

[0027] 11-First retaining ring; 12-Second retaining ring;

[0028] 13-Spring; 14-Fixing groove;

[0029] 15 - Rotating ring; 111 - Threaded post;

[0030] 2- Fine-tuning components; 20- Cutting blade;

[0031] 21-First retaining ring; 22-Second retaining ring;

[0032] 211-First bonding surface; 212-Card setting part;

[0033] 213 - Mounting surface; 214 - Mounting slot;

[0034] 215 - Fixed block;

[0035] 221 - Second mating surface; 222 - Engaging protrusion;

[0036] 223 - Mounting slot; 224 - Elastic element;

[0037] 225-Settling Tank;

[0038] 3-Drive mechanism; 4-Mounting plate;

[0039] 41-Bearing housing; 42-Belt pulley drive assembly;

[0040] 5-Locking pin; 6-Protective cover;

[0041] 61-Mounting base; 7-Longitudinal movement mechanism;

[0042] 8-Slide rail; 81-Slider. Detailed Implementation

[0043] 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.

[0044] like Figures 1 to 4As shown, a cutting mechanism for a novel raw material tape winding machine includes a frame 10 and a main shaft 1 mounted on the frame 10. The frame 10 is vertically arranged, and the main shaft 1 is horizontally arranged and perpendicular to the arrangement direction of the frame 10. A first fixing ring 11 is provided at one end of the main shaft 1 near the frame 10, and a second fixing ring 12 is provided at the other end. Specifically, both the first fixing ring 11 and the second fixing ring 12 are sleeved on the main shaft 1, and both are bolted to the main shaft 1. Correspondingly, both the first fixing ring 11 and the second fixing ring 12 have threaded holes for bolt insertion. This arrangement allows the first fixing ring 11 and the second fixing ring 12 to be adjusted on the main shaft by loosening the bolts. Position 1: Multiple cutters 20 are sleeved between the first fixing ring 11 and the second fixing ring 12. Each cutter 20 is provided with a fine-tuning component 2, which can adjust the distance between the cutters 20. A spring 13 is also sleeved on the main shaft 1 near the second fixing ring 12. One end of the spring 13 abuts against the second fixing ring 12, and the other end abuts against the side of the cutter 20 near the spring 13. The spring 13 is set so that the cutter 20 and the fine-tuning component 2 can always be in contact under the action of the spring 13. It should be noted that in actual use, a plastic collar can be added between the cutter 20 and the spring 13 to prevent the cutter 20 from being deformed by the spring 13 for a long time.

[0045] Specifically, the fine-tuning component 2 includes a first retaining ring 21 and a second retaining ring 22 that fit together. The first retaining ring 21 and the second retaining ring 22 are arranged coaxially. The side of the first retaining ring 21 facing the second retaining ring 22 is the first mating surface 211, and the side of the second retaining ring 22 facing the first retaining ring 21 is the second mating surface 221. Multiple locking portions 212 are provided on the first mating surface 211, and the locking portions 212 are arranged in a ring at equal intervals. Each locking portion 212 includes multiple locking platforms 213 arranged in a ring. The thickness between adjacent locking platforms 213 within the same locking portion increases sequentially. Multiple locking protrusions 222, corresponding to the shape of the locking platforms 213, are arranged in a ring at equal intervals on the second mating surface 221. The number of locking protrusions 222 corresponds to the number of locking portions 212. Each locking protrusion 222 corresponds to a locking platform 213 of the same thickness within each locking part 212, such that when the first contact surface 211 and the second contact surface 221 are in contact, each locking protrusion 222 is in contact with the corresponding locking protrusion 222 of the same thickness within the locking part 212; furthermore, a mounting groove 223 is recessed on the locking protrusion 222, and an elastic element 224 is fixedly installed in the mounting groove 223, with the elastic element 224 protruding out of the mounting groove 223; a locking groove 214 for the elastic element 224 to be locked is recessed on the locking platform 213, and the elastic element 224 is preferably a conventional spring ball; a fixing groove 14 is also provided on the main shaft 1, which is arranged along the length direction of the main shaft 1, and a fixing block 225 that can extend into the fixing groove 14 is provided on the first retaining ring 21.

[0046] It should be noted that the number of locking parts 212 and locking platforms 213 can be set according to actual needs. Preferably, in this embodiment, three locking parts 212 are arranged in a circular array on the first contact surface 211, and each adjacent locking part 212 is connected end to end. Correspondingly, the number of locking protrusions 222 is three, corresponding to the number of locking parts 212. Each locking part 212 includes five locking platforms 213 with progressively increasing thickness (i.e., the locking platforms 213 have five adjustable positions). The connecting surfaces between 13 are all inclined, which facilitates the relative rotation of the locking protrusion 222 and the locking platform 213. With this configuration, when the first locking ring 21 and the second locking ring 22 are in contact, the locking protrusion 222 on the second locking ring 22 can be locked onto the locking platform 213 of the same thickness in the corresponding locking part 212. Rotating the locking protrusion 222 can adjust different positions, thereby increasing or decreasing the distance between the first locking ring 21 and the second locking ring 22, and thus adjusting the distance between the cutters 20.

[0047] Preferably, the outer side of the second retaining ring 22 is also provided with a groove 225. When it is necessary to adjust the distance between the cutters 20, it is only necessary to insert a long rod that can extend into the groove 225 into the groove 225, and then hold the long rod to drive the second retaining ring 22 to rotate, so that the retaining protrusion 222 on the second retaining ring 22 contacts the retaining platform 213 of different thicknesses, thereby adjusting the distance between the first retaining ring 21 and the second retaining ring 22. By adjusting the distance between each cutter 20 as a fine-tuning component 2 in the above manner, the distance between each cutter 20 can be adjusted. Since the fixing block 225 of the first retaining ring 21 extends into the fixing groove 14, it will not rotate with the second retaining ring 22.

[0048] The cutting mechanism of this utility model, by setting a fine-tuning component 2 between the cutters 20, allows the thickness between each clamping platform 213 to be set in advance according to actual needs. When the width of the raw material strip produced by the winding machine deviates from the predetermined width, the spacing between the cutters 20 can be finely adjusted by rotating the second clamping ring 22, thereby ensuring that the width of all cut raw material strips is within the qualified size range, avoiding the production of defective products and affecting the production progress.

[0049] Furthermore, the first fixed ring 11 is provided with a threaded post 111 on the side near the second fixed ring 12. A rotating ring 15 is fitted on the main shaft 1 and threadedly engaged with the threaded post 111. One side of the rotating ring 15 is threadedly connected to the threaded post 111, and the other side abuts against the fine-tuning component 2. Since the end of the cutter 20 near the second fixed ring 12 is always abutted by the spring 13, and the end of the cutter 20 near the first fixed ring 11 is always abutted by the rotating ring 15, rotating the rotating ring 15 can transmit the force to the spring 13 through the fine-tuning component 2, thereby fine-tuning the overall position of the cutter 20 on the main shaft 1 and the fine-tuning component 2.

[0050] Furthermore, the frame 10 is also provided with a drive mechanism 3 for driving the spindle 1 to rotate. The end of the spindle 1 near the frame 10 is also provided with a mounting plate 4. The drive mechanism 3 is fixed on the mounting plate 4. The mounting plate 4 is fixed with a bearing seat 41. The spindle 1 is rotatably mounted on the bearing seat 41. Specifically, the drive mechanism 3 includes a drive motor fixed on the mounting plate 4. The drive motor drives the spindle 1 to rotate through a belt pulley transmission assembly 42. The belt pulley transmission assembly 42 includes a first pulley fixed on the output end of the drive motor, a second pulley fixed on the end of the spindle 1 near the frame 10, and a belt sleeved on the first pulley and the second pulley.

[0051] Furthermore, the bearing housing 41 is provided with a locking pin 5, which passes through the bearing housing 41 and extends to the spindle 1. The spindle 1 is provided with a keyway for the locking pin 5 to be inserted at the position corresponding to the locking pin 5. Tightening the locking pin 5 can prevent the spindle 1 from rotating. This setting makes it easy to fix the spindle 1 when fine-tuning the distance between the first retaining ring 21 and the second retaining ring 22, so that the spindle 1 will not rotate with the second retaining ring 22.

[0052] Furthermore, such as Figure 4 As shown, the main shaft 1 is also provided with a protective cover 6, and the bearing seat 41 near the first retaining ring 21 is also provided with a mounting seat 61 for installing the protective cover 6. The protective cover 6 is rotatably mounted on the mounting seat 61. The above-mentioned rotatable mounting method can adopt a conventional rotatable connection structure in the art, such as a hinge connection. Setting the protective cover 6 can prevent workers from being injured by the cutter 20 during operation, and can effectively prevent dust from entering the cutter 20 and the fine adjustment component 2, thereby improving their service life.

[0053] Furthermore, the frame 10 is also provided with a longitudinal movement mechanism 7 for pushing the mounting plate 4 to move vertically. The output end of the longitudinal movement mechanism 7 is fixedly connected to the mounting plate 4. The frame 10 is also provided with a slide rail 8 and a slide seat 81 that can move on the slide rail 8. The mounting plate 4 is fixed on the slide seat 81. The arrangement direction of the slide rail 8 is the same as the movement direction of the longitudinal movement mechanism 7. The longitudinal movement mechanism 7 can be a conventional cylinder in the art. The cylinder is fixed on the frame 10. The mounting plate 4 is pushed by the cylinder, so that the mounting plate 4 can move on the slide rail 8. When winding the raw material tape, the cutter 20 can be lifted for convenient operation.

[0054] 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 cutting mechanism for a novel raw material tape winding machine, comprising a frame and a main shaft mounted on the frame, wherein a first fixing ring is provided at one end of the main shaft near the frame, and a second fixing ring is provided at the other end, and a plurality of cutting blades are sleeved between the first fixing ring and the second fixing ring, characterized in that, Each cutter is equipped with a fine-tuning component. A spring is fitted on the spindle near the second fixed ring. One end of the spring abuts against the second fixed ring, and the other end abuts against the cutter. The fine-tuning component includes a first retaining ring and a second retaining ring that fit together. The side of the first retaining ring facing the second retaining ring is the first contact surface, and the side of the second retaining ring facing the first retaining ring is the second contact surface. Multiple locking parts are provided on the first contact surface, and each locking part includes multiple locking platforms arranged in a ring. The thickness between adjacent locking platforms in the same locking part increases sequentially. Multiple locking protrusions corresponding to the shape of the locking platforms are arranged in a ring at equal intervals on the second contact surface. The number of locking protrusions corresponds to the number of locking parts. A mounting groove is recessed on the locking protrusion, and an elastic element is fixed in the mounting groove. A locking groove for the elastic element to be locked is recessed on the locking platform.

2. The cutting mechanism of a novel raw material tape winding machine according to claim 1, characterized in that, The first retaining ring and the second retaining ring are coaxially arranged. The main shaft is also provided with a fixing groove, which is arranged along the length direction of the main shaft. The first retaining ring is provided with a fixing block that can extend into the fixing groove, and the outer side of the second retaining ring is also provided with a recessed groove.

3. The cutting mechanism of a novel raw material tape winding machine according to claim 1, characterized in that, The first fixing ring is also provided with a threaded post on the side near the second fixing ring. A rotating ring is sleeved on the main shaft and threadedly engaged with the threaded post. One side of the rotating ring is threadedly connected to the threaded post, and the other side abuts against the fine-tuning component.

4. The cutting mechanism of a novel raw material tape winding machine according to claim 1, characterized in that, The frame is also provided with a drive mechanism for rotating the spindle. The end of the spindle near the frame is also provided with a mounting plate. The drive mechanism is fixed on the mounting plate. A bearing seat is fixed on the mounting plate. The spindle is rotatably mounted on the bearing seat.

5. The cutting mechanism of a novel raw material tape winding machine according to claim 4, characterized in that, The drive mechanism includes a drive motor fixed on the mounting plate. The drive motor drives the main shaft to rotate through a pulley transmission assembly. The pulley transmission assembly includes a first pulley fixed on the output end of the drive motor, a second pulley fixed on one end of the main shaft near the frame, and a belt sleeved on the first pulley and the second pulley.

6. The cutting mechanism of a novel raw material tape winding machine according to claim 4, characterized in that, The bearing housing is provided with a locking pin, which passes through the bearing housing and extends to the spindle. The spindle is provided with a keyway for the locking pin to be inserted at the position corresponding to the locking pin.

7. The cutting mechanism of a novel raw material tape winding machine according to claim 4, characterized in that, The main shaft is also provided with a protective cover, and the bearing seat near the first retaining ring is also provided with a mounting base for installing the protective cover, and the protective cover is rotatably mounted on the mounting base.

8. The cutting mechanism of a novel raw material tape winding machine according to claim 4, characterized in that, The frame is also provided with a longitudinal movement mechanism for pushing the mounting plate to move vertically. The output end of the longitudinal movement mechanism is fixedly connected to the mounting plate. The frame is also provided with a slide rail and a slide block that can move on the slide rail. The mounting plate is fixed on the slide block. The slide rail is arranged in the same direction as the movement of the longitudinal movement mechanism.

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