Film rolling device

Abstract

The utility model relates to the technical field of cylindrical heater production, in particular to a film rolling device which comprises a machine base, and a pipe core pushing mechanism, a clamping mechanism and a driving mechanism are arranged on the machine base. The pipe core pushing mechanism comprises an air cylinder and a pipe positioning shaft; the clamping mechanism comprises a first roller assembly, a second roller assembly and a pushing set. The driving mechanism comprises a driving roller and a driving motor. The driving roller is located below the position between the first roller assembly and the second roller assembly. The driving roller, the first roller assembly and the second roller assembly are parallel to the pipe positioning shaft. The first roller assembly, the second roller assembly and the driving roller jointly define a film winding space. After the technical scheme is adopted, the driving mechanism and the clamping mechanism can stably clamp the pre-pasting pipe core part in the film rolling space, in the rotating process, the contact position covers the whole circumference of the pre-pasting pipe core part, the situation that local film rolling is not firm can be avoided, the pre-pasting pipe core part can keep stable rotation, and the yield can be improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to cylindrical heater production technical field, concretely relates to a roll device. BACKGROUND

[0002] The main structure of the cylindrical ceramic heater is composed of a tube core and a heating sheet. The heating sheet is bonded to the tube core by gluing or spraying. The cylindrical ceramic heater plays an important role in many fields such as industry, semiconductor manufacturing, household appliances, etc. due to its high efficiency, energy saving, high temperature resistance and other characteristics, and provides reliable heating solutions for various industries.

[0003] The main production process of the cylindrical ceramic heater is silk printing, gluing, sheet rolling, pressing and sintering. Currently, manual sheet rolling is mainly used in the production process. However, manual sheet rolling has the following main problems: uneven stress, easy to cause local sheet rolling to be not firm, resulting in gaps or wrinkles between the heating sheet and the tube core, and further resulting in poor adhesion of the heating sheet to the tube core, and relatively low yield.

[0004] Therefore, the applicant has conducted in-depth research on the above problems, and thus the present case is produced. CONTENT OF THE UTILITY MODEL

[0005] The utility model aims at providing a roll device with relatively high yield.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical scheme:

[0007] A roll device comprises a machine base, a tube core pushing mechanism, a clamping mechanism located below the tube core pushing mechanism, and a driving mechanism located below the clamping mechanism.

[0008] The tube core pushing mechanism comprises a cylinder and a horizontally arranged tube positioning shaft. The cylinder body of the cylinder is installed on the machine base, and the piston rod of the cylinder is vertically arranged. One end of the tube positioning shaft is installed on the piston rod of the cylinder.

[0009] The clamping mechanism comprises a first roller assembly and a second roller assembly which are horizontally slidably connected to the machine base along the axis direction perpendicular to the tube positioning shaft, and a pushing group for applying force to make the first roller assembly and the second roller assembly close to each other. The first roller assembly and the second roller assembly are symmetrically arranged with the vertical plane where the tube positioning shaft is located as the center.

[0010] The driving mechanism comprises a driving motor and a driving roller which are installed on the machine base. The driving roller is located below the position between the first roller assembly and the second roller assembly, and the driving roller and the driving motor are drivingly connected.

[0011] The driving roller, the first roller assembly and the second roller assembly are arranged in parallel with the pipe positioning shaft respectively;

[0012] The first roller assembly, the second roller assembly and the driving roller jointly enclose a sheet winding space.

[0013] Preferably, the pipe positioning shaft comprises coaxially arranged first and second shaft segments, the first shaft segment has a larger diameter than the second shaft segment, one end of the first shaft segment is connected with the second shaft segment, and the other end of the first shaft segment is mounted on the piston rod of the pneumatic cylinder.

[0014] Preferably, the pushing group comprises a first pushing sub-group located on the side of the first roller assembly away from the second roller assembly and a second pushing sub-group located on the side of the second roller assembly away from the first roller assembly;

[0015] The first pushing sub-group comprises a first shaft rod mounted on the first roller assembly, a first spring sleeved on the first shaft rod and a first block mounted on the machine base, the first shaft rod is arranged horizontally and perpendicularly to the pipe positioning shaft, the first block is located on the side of the first spring away from the first roller assembly, one end of the first spring abuts against the first roller assembly, and the other end of the first spring abuts against the first block;

[0016] The second pushing sub-group comprises a second shaft rod mounted on the second roller assembly, a second spring sleeved on the second shaft rod and a second block mounted on the machine base, the second shaft rod is arranged horizontally and perpendicularly to the pipe positioning shaft, the second block is located on the side of the second spring away from the second roller assembly, one end of the second spring abuts against the second roller assembly, and the other end of the second spring abuts against the second block.

[0017] Preferably, the machine base is provided with a slide rail arranged horizontally and perpendicularly to the pipe positioning shaft, and the first roller assembly and the second roller assembly are respectively connected to the slide rail in a sliding manner;

[0018] The slide rail has a first end portion and a second end portion, the first end portion is located on the side of the first roller assembly away from the second roller assembly, and the second end portion is located on the side of the second roller assembly away from the first roller assembly;

[0019] The first block is mounted at a position corresponding to the first end portion of the machine base;

[0020] The second block is mounted at a position corresponding to the second end portion of the machine base.

[0021] Preferably, the first roller assembly and the second roller assembly both comprise a bearing seat slidingly connected with the slide rail and a roller body rotatably connected with the bearing seat, each of the roller bodies is arranged in parallel with the pipe positioning shaft, the first shaft rod is installed on the bearing seat of the first roller assembly, and the second shaft rod is installed on the bearing seat of the second roller assembly.

[0022] Preferably, the roller body of the first roller assembly comprises a first end section, a middle section and a second end section arranged in sequence along the axial direction of the roller body, wherein the diameters of the first end section and the second end section are both greater than the diameter of the middle section.

[0023] The structure of the roller body of the second roller assembly is the same as that of the roller body of the first roller assembly.

[0024] The middle section of the first roller assembly and the middle section of the second roller assembly are arranged correspondingly.

[0025] Preferably, the first shaft rod is inserted into the first block.

[0026] The second shaft rod is inserted into the second block.

[0027] Preferably, a mounting seat is fixed on the piston rod of the air cylinder, and the pipe positioning shaft is installed on the mounting seat.

[0028] Preferably, the mounting seat comprises an end plate and a connecting piece.

[0029] The end plate is fixed on the piston rod of the air cylinder, the upper end of the connecting piece is fixed on the end plate, and the pipe positioning shaft is installed on the connecting piece.

[0030] Preferably, a vertically arranged guide rod is further fixed on the upper side of the mounting seat, and the guide rod is vertically slidingly connected with the machine base.

[0031] The beneficial effects are that: by arranging the tube core pushing mechanism, the driving mechanism and the clamping mechanism, the tube core can be sleeved on the tube positioning shaft, the heating sheet is coated with glue, and the heating sheet is placed on the first roller assembly and the second roller assembly at the same time, the tube core pushing mechanism pushes the tube core to the sheet winding space, and in the pushing process, the heating sheet is adhered to the tube core and forms a pre-pasted tube core piece; after the pre-pasted tube core piece completely enters the sheet winding space, the driving mechanism and the clamping mechanism can stably clamp the pre-pasted tube core piece in the sheet winding space, and the clamping force of the pre-pasted tube core piece can be maintained by arranging the pushing group, the driving roller can drive the pre-pasted tube core piece to rotate, and the contact positions of the driving roller, the first roller assembly and the second roller assembly with the pre-pasted tube core piece move along the outer periphery of the pre-pasted tube core piece continuously, thereby covering the whole pre-pasted tube core piece, avoiding local sheet winding instability, and being beneficial to improving the yield; by arranging the driving roller, the first roller assembly and the second roller assembly parallel to the tube positioning shaft, the pre-pasted tube core piece can rotate stably during rotation and will not move randomly, thereby reducing the probability of wrinkles or damage of the heating sheet caused by sliding friction between the pre-pasted tube core piece and the driving roller, the first roller assembly and the second roller assembly, and being beneficial to improving the yield. BRIEF DESCRIPTION OF DRAWINGS

[0032] Figure 1 It is a structure schematic view of the sheet winding device of the utility model;

[0033] Figure 2 It is a sectional structure schematic view of the sheet winding device of the utility model;

[0034] Figure 3 It is a schematic view of the tube core and the heating sheet being placed on the sheet winding device of the utility model;

[0035] Figure 4 It is a structure schematic view of the pre-pasted tube core piece abutting against the driving roller.

[0036] In the drawing:

[0037] 10-base; 11-slideway;

[0038] 12-first block; 13-second block;

[0039] 21-cylinder; 22-mounting base;

[0040] 22a-end plate; 22b-connector;

[0041] 22c-guide rod;

[0042] 23-tube positioning shaft; 24-first annular stepped surface;

[0043] 31-first roller assembly; 32-second roller assembly;

[0044] 33 - bearing seat; 34 - roller body;

[0045] 35 - second annular stepped surface;

[0046] 37 - first shaft; 38 - second shaft;

[0047] 41 - driving roller; 42 - driving motor;

[0048] 901 - tube core; 902 - heating sheet. DETAILED DESCRIPTION

[0049] In order to make the purpose, technical scheme and advantages of the utility model more clearly, the following will be further described in detail. It should be understood that the specific embodiments described herein are only used to explain the utility model, and are not used to limit the utility model.

[0050] As shown in Figures 1-4 the embodiment, a sheet winding device is provided for use in the production and processing process of cylindrical heaters. The sheet winding device comprises a base 10, a tube core pushing mechanism arranged on the base 10, a clamping mechanism arranged below the tube core pushing mechanism, and a driving mechanism arranged below the clamping mechanism.

[0051] In the sheet winding process, a heating sheet 902 and a tube core 901 need to be prepared. It should be noted that the heating sheet 902 and the tube core 901 are not part of the utility model, but the working object of the utility model, and the heating sheet 902 and the tube core 901 are the main materials for producing cylindrical heaters.

[0052] The tube core pushing mechanism comprises a cylinder 21 and a horizontally arranged tube positioning shaft 23. The cylinder body of the cylinder 21 is mounted on the base 10, and the piston rod of the cylinder 21 is arranged vertically downward. One end of the tube positioning shaft 23 is a mounting end, and the other end is a free end. The mounting end of the tube positioning shaft 23 is mounted on the lower end of the piston rod of the cylinder 21. In the embodiment, the lower end of the piston rod of the cylinder 21 is fixed with a mounting seat 22, and the mounting seat 22 comprises an end plate 22a and a connecting piece 22b. The end plate 22a is horizontally arranged, and the end plate 22a is fixed on the lower end of the piston rod of the cylinder 21. The upper end of the connecting piece 22b is fixed on the end plate 22a, and the mounting end of the tube positioning shaft 23 is indirectly mounted on the lower end of the piston rod of the cylinder 21 through the connecting piece 22b mounted on the mounting seat 22. In the embodiment, the tube positioning shaft 23 is fixedly connected with the connecting piece 22b.

[0053] For the convenience of description, the direction of the mounting end of the tube positioning shaft 23 pointing to the free end of the tube positioning shaft 23 is left, and the direction of the free end of the tube positioning shaft 23 pointing to the mounting end of the tube positioning shaft 23 is right.

[0054] Preferably, in order to improve the stability of the mounting base 22 when the mounting base 22 moves with the cylinder, a vertical guide rod 22c is further fixed to the upper side of the mounting base 22, and the guide rod 22c is in vertical sliding connection with the base 10.

[0055] The clamping mechanism comprises a first roller assembly 31 and a second roller assembly 32 which are in horizontal sliding connection with the base 10 along a direction perpendicular to the pipe positioning axis 23, and a pushing group for applying a force to make the first roller assembly 31 and the second roller assembly 32 close to each other, the first roller assembly 31 and the second roller assembly 32 are arranged in parallel with the pipe positioning axis 23, and the first roller assembly 31 and the second roller assembly 32 are arranged symmetrically with respect to the vertical plane in which the pipe positioning axis 23 is located.

[0056] In the embodiment, the base 10 is provided with horizontal sliding rails 11 which are arranged perpendicular to the pipe positioning axis 23, and the two ends of the sliding rails are respectively a first end and a second end, specifically, the base 10 is provided with two sliding rails 11, and the two sliding rails 11 are respectively a first sliding rail and a second sliding rail.

[0057] The first roller assembly 31 comprises a bearing seat 33 and a roller body 34, wherein the bearing seat 33 has two bearing seats 33 which are respectively a first bearing seat and a second bearing seat, one end of the roller body 34 is in rotary connection with the first bearing seat, and the other end of the roller body 34 is in rotary connection with the second bearing seat. The second roller assembly 32 has the same structure as the first roller assembly 31, and will not be described again. The roller body 34 of the first roller assembly 31 and the roller body 34 of the second roller assembly 32 are arranged in parallel with the pipe positioning axis 23. The roller body 34 of the first roller assembly 31 and the roller body 34 of the second roller assembly 32 are arranged symmetrically with respect to the vertical plane in which the pipe positioning axis 23 is located.

[0058] The first bearing seat of the first roller assembly 31 is in sliding connection with the first sliding rail, and the second bearing seat of the first roller assembly 31 is in sliding connection with the second sliding rail; the first bearing seat of the second roller assembly 32 is in sliding connection with the first sliding rail, and the second bearing seat of the second roller assembly 32 is in sliding connection with the second sliding rail.

[0059] The first end of the first sliding rail and the first end of the second sliding rail are located on the side of the first roller assembly 31 away from the second roller assembly 32, and the second end of the first sliding rail and the second end of the second sliding rail are located on the side of the second roller assembly 32 away from the first roller assembly 31.

[0060] Preferably, the tube positioning shaft 23 comprises coaxially arranged first and second shaft segments, the diameter of the first shaft segment is larger than that of the second shaft segment, one end of the first shaft segment is connected with one end of the second shaft segment, the other end of the first shaft segment is the mounting end of the tube positioning shaft 23, the other end of the second shaft segment is the free end of the tube positioning shaft 23, and a first annular stepped surface 24 is formed at the connection position of the first and second shaft segments. The roller body 34 of the first roller assembly 31 comprises a first end segment, a middle segment and a second end segment arranged in sequence from left to right, wherein the diameter of the first end segment and the diameter of the second end segment are both larger than the diameter of the middle segment, and a second annular stepped surface 35 is formed at the connection position of the first end segment and the middle segment; the structure of the roller body 34 of the second roller assembly 32 is the same as that of the roller body 34 of the first roller assembly 31, and will not be described again; the middle segments of the roller bodies 34 on the first and second roller assemblies 31 and 32 are correspondingly arranged, specifically, the left end faces of the two middle segments are located on the same plane, and the right end faces of the two middle segments are located on the same plane.

[0061] It should be noted that all the diameters mentioned herein refer to the outer diameter of the corresponding part.

[0062] By setting the first and second annular stepped surfaces 24 and 35, when the tube core 901 and the heating sheet 902 need to be installed on the sheet winding device, the positions of the tube core 901 and the heating sheet 902 on the sheet winding device can be adjusted by means of the first and second annular stepped surfaces 24 and 35, so as to control the relative position of the heating sheet 902 and the tube core 901 after winding. Specifically, in use, the tube core 901 is sleeved on the tube positioning shaft 23, and the tube core 901 abuts against the first annular stepped surface 24, the heating sheet 902 is placed on the middle segments of the roller bodies 34 of the first and second roller assemblies 31 and 32 at the same time, so that the two middle segments jointly support the heating sheet 902, and then the left end of the heating sheet 902 abuts against the second annular stepped surfaces 35 of the roller bodies 34 of the first and second roller assemblies 31 and 32 at the same time, so as to ensure the bonding precision.

[0063] The pushing group comprises a first pushing sub-group located on the side of the first roller assembly 31 away from the second roller assembly 32, and a second pushing sub-group located on the side of the second roller assembly 32 away from the first roller assembly 31.

[0064] The first pushing group comprises a first shaft 37 installed on the first roller assembly 31, a first spring (not shown in the figure) sleeved on the first shaft 37, and a first block 12 installed on the base 10, the first shaft 37 is horizontally arranged and perpendicular to the pipe positioning shaft 23, the first block 12 is located on the side of the first spring away from the first roller assembly 31, one end of the first spring is abutted on the first roller assembly 31, and the other end is abutted on the first block 12. In the embodiment, there are two first pushing groups, one of which is arranged corresponding to the first bearing seat of the first roller assembly 31, and the other is arranged corresponding to the second bearing seat of the first roller assembly 31.

[0065] In the first pushing group arranged corresponding to the first bearing seat of the first roller assembly 31, the first shaft 37 is installed on the first bearing seat of the first roller assembly 31, and the first spring is abutted on the first bearing seat of the first roller assembly 31; further, the first block 12 is installed at a position corresponding to the first end of the first slide rail of the base 10.

[0066] In the first pushing group arranged corresponding to the second bearing seat of the first roller assembly 31, the first shaft 37 is installed on the second bearing seat of the first roller assembly 31, and the first spring is abutted on the second bearing seat of the first roller assembly 31; further, the first block 12 is installed at a position corresponding to the first end of the second slide rail of the base 10.

[0067] The second pushing group comprises a second shaft 38 installed on the second roller assembly 32, a second spring (not shown in the figure) sleeved on the second shaft 38, and a second block 13 installed on the base 10, the second shaft 38 is horizontally arranged and perpendicular to the pipe positioning shaft 23, the second block 13 is located on the side of the second spring away from the second roller assembly 32, one end of the second spring is abutted on the second roller assembly 32, and the other end is abutted on the second block 13.

[0068] In the embodiment, there are two second pushing groups, one of which is arranged corresponding to the first bearing seat of the second roller assembly 32, and the other is arranged corresponding to the second bearing seat of the second roller assembly 32.

[0069] In the second pushing group arranged corresponding to the first bearing seat of the second roller assembly 32, the second shaft 38 is installed on the first bearing seat of the second roller assembly 32, and the second spring is abutted on the first bearing seat of the second roller assembly 32; further, the second block 13 is installed at a position corresponding to the second end of the first slide rail of the base 10.

[0070] In the second pushing sub-group arranged corresponding to the second bearing seat of the second roller assembly 32, the second shaft rod 38 is installed on the second bearing seat of the second roller assembly 32, and the second spring abuts against the second bearing seat of the second roller assembly 32. Further, the second block 13 is installed at a position corresponding to the second end of the second slide rail and the machine base 10.

[0071] Further, in each first pushing sub-group, the first shaft rod 37 is slidably inserted into the corresponding first block 12. In each second pushing sub-group, the second shaft rod 38 is slidably inserted into the corresponding second block 13.

[0072] The driving mechanism comprises a driving roller 41 and a driving motor 42 which are respectively installed on the machine base 10, are in transmission connection, and are located below a position between the first roller assembly 31 and the second roller assembly 32. The driving roller 41 is arranged in parallel with the pipe positioning shaft 23. In this embodiment, the driving roller 41 is installed on the machine base 10 through a driving roller bearing seat. The driving roller bearing seat has two driving roller bearing seats, one end of the driving roller 41 is rotationally connected with one of the driving roller bearing seats, and the other end of the driving roller 41 is rotationally connected with the other driving roller bearing seat. The two driving roller bearing seats are respectively fixed on the machine base 10, and the driving motor 42 is fixed on the machine base 10.

[0073] It should be noted that the "driving roller 41 is located below a position between the first roller assembly 31 and the second roller assembly 32" can mean that the driving roller 41 is located directly below the position between the first roller assembly 31 and the second roller assembly 32, or that the driving roller 41 is located laterally below the position between the first roller assembly 31 and the second roller assembly 32. When the driving roller 41 is arranged laterally below the position between the first roller assembly 31 and the second roller assembly 32, preferably, at least a part of the projection of the driving roller 41 on the horizontal plane coincides with the pipe positioning shaft 23. In this embodiment, the driving roller 41 is located directly below the position between the first roller assembly 31 and the second roller assembly 32.

[0074] The first roller assembly 31, the second roller assembly 32 and the driving roller 41 jointly enclose a sheet winding space.

[0075] When the first roller assembly 31 and the second roller assembly 32 move towards each other to the limit position, in other words, when the first roller assembly 31 and the second roller assembly 32 move towards each other to the closest position, the distance between the middle sections of the roller bodies 34 of the first roller assembly 31 and the second roller assembly 32 is a first distance. When the first roller assembly 31 and the second roller assembly 32 move away from each other to the limit position, in other words, when the first roller assembly 31 and the second roller assembly 32 move away from each other to the farthest position, the distance between the middle sections of the roller bodies 34 of the first roller assembly 31 and the second roller assembly 32 is a second distance.

[0076] It should be noted that the tube core 901, the pre-pasted tube core component to be mentioned below, and the heater semi-finished product to be mentioned below need to meet the following conditions at the same time: first, the diameter of the tube core 901 is greater than the first distance, and the diameter of the heater semi-finished product is less than the second distance; second, after the pre-pasted tube core component abuts against the driving roller 41, the pre-pasted tube core component also simultaneously abuts against the middle sections of the roller bodies 34 of the first roller assembly 31 and the second roller assembly 32.

[0077] In use, the tube core 901 is sleeved on the tube positioning shaft 23 and abuts against the first annular stepped surface 24, glue is applied on the heating sheet 902, and the heating sheet 902 is simultaneously placed on the middle sections of the roller bodies 34 of the first roller assembly 31 and the second roller assembly 32. After the tube core 901 and the heating sheet 902 are placed on the sheet winding device, as shown in Figure 3 the piston rod of the air cylinder 21 is pushed downward, the tube core 901 moves downward; the tube core 901 first contacts the heating sheet 902, and since the heating sheet 902 is coated with glue, the heating sheet 902 is adhered to the tube core 901, at which time the tube core 901 and the heating sheet 902 jointly form a pre-pasted tube core component; the pre-pasted tube core component simultaneously extrudes the middle sections of the roller bodies 34 of the first roller assembly 31 and the second roller assembly 32, and the distance between the first roller assembly 31 and the second roller assembly 32 gradually increases, and each first spring and each second spring is gradually compressed; after the distance between the middle sections of the roller bodies 34 of the first roller assembly 31 and the second roller assembly 32 reaches the diameter of the pre-pasted tube core component, the pre-pasted tube core component continues to move downward, each first spring and each second spring gradually rebounds, and the distance between the first roller assembly 31 and the second roller assembly 32 gradually increases and then decreases; when the pre-pasted tube core component contacts the driving roller 41, the pre-pasted tube core component completely enters the sheet winding space; since the first roller assembly 31 and the second roller assembly 32 are subjected to the action force of the pushing assembly, the first roller assembly 31 and the second roller assembly 32 also simultaneously generate extrusion force on the pre-pasted tube core component and make the pre-pasted tube core component generate extrusion force on the driving roller 41, under the joint action of the driving roller 41, the first roller assembly 31, and the second roller assembly 32, the pre-pasted tube core component is stably clamped in the sheet winding space; then, the driving roller 41 rotates and drives the pre-pasted tube core component to rotate, the pre-pasted tube core component drives the roller bodies 34 of the first roller assembly 31 and the second roller assembly 32 to rotate, and in the process of rotation, the first roller assembly 31, the second roller assembly 32, and the driving roller 41 extrude the heating sheet 902, so that the heating sheet 902 is more uniformly and densely adhered to the tube core 901; as shown in Figure 4As shown, after the rotation is completed, the winding action of the pre-sticking pipe core piece is completed, and the pre-sticking pipe core piece after winding is defined as a heater semi-finished product; then the piston rod of the air cylinder 21 moves upward and retreats to the upper side of the clamping mechanism, so that the heater semi-finished product can be taken off from the pipe positioning shaft 23, and thus a complete winding process is completed.

[0078] It should be noted that, since the heating sheet 902 is coated with glue, the adhesive force generated by the heating sheet 902 is greater than the friction force of the roller body 34 of the first roller assembly 31 acting on the heating sheet 902 and the friction force of the roller body 34 of the second roller assembly 32 acting on the heating sheet 902, so the heating sheet 902 can be firmly attached to the pipe core 901.

[0079] It should be noted that, in the description of the specification and claims and the above drawings, the terms "first", "second", "third", etc. are used to distinguish different objects, rather than to describe a specific order. Figure 4 When the pre-sticking pipe core piece just contacts the driving roller 41, if the heating sheet 902 still has an end portion not attached to the pipe core 901, the driving roller 41 can be driven to rotate clockwise by a certain angle first, so that the portion of the heating sheet 902 close to the roller body 34 of the second roller assembly 32 on the right side is completely attached to the pipe core 901, and then the driving roller 41 is rotated counterclockwise, so that the portion of the heating sheet 902 close to the roller body 34 of the second roller assembly 32 on the left side is also completely attached to the pipe core 901, so that the heating sheet 902 can be completely attached to the pipe core 901, and then the driving roller 41 can be rolled clockwise or counterclockwise again.

[0080] After the above technical scheme is adopted, by arranging the driving mechanism and the clamping mechanism, after the pre-sticking pipe core piece completely enters the winding space, the driving roller 41, the first roller assembly 31 and the second roller assembly 32 not only roll in contact with the heating sheet 902, but also apply a relatively uniform pressing force to the heating sheet 902. When the driving motor 42 drives the driving roller 41 to rotate and drive the pre-sticking pipe core piece and the roller body 34 of the first roller assembly 31 and the roller body 34 of the second roller assembly 32 to rotate, the contact positions of the driving roller 41, the first roller assembly 31 and the second roller assembly 32 with the heating sheet 902 continuously move along the outer periphery of the heating sheet 902, thereby covering the entire periphery of the heating sheet 902, avoiding local winding instability, ensuring that the heating sheet 902 is tightly attached to the pipe core 901 without gaps, and facilitating improvement of the yield rate; by arranging the driving roller 41, the first roller assembly 31 and the second roller assembly 32 in parallel with the pipe positioning shaft 23, the pre-sticking pipe core piece can be kept stable during rotation and will not move randomly, thereby reducing the probability of wrinkles or damage of the heating sheet 902 caused by sliding friction between the heating sheet 902 and the driving roller 41, the first roller assembly 31 and the second roller assembly 32, and facilitating improvement of the yield rate.

[0081] In the description of the specification and claims and the above drawings, the terms "first", "second", "third", etc. are used to distinguish different objects, rather than to describe a specific order.

[0082] The utility model has made the detailed description above in combination with the drawings, but the implementation mode of the utility model is not limited to the above-mentioned implementation mode, and the person skilled in the art can make various deformations to the utility model according to the prior art, and these all belong to the protection scope of the utility model.

Claims

1. A roll device, characterized by: The device comprises a base, a tube pushing mechanism, a clamping mechanism below the tube pushing mechanism, and a driving mechanism below the clamping mechanism; The tube pushing mechanism comprises a cylinder and a horizontally arranged tube positioning shaft, the cylinder body is mounted on the base, the piston rod of the cylinder is vertically arranged, and one end of the tube positioning shaft is mounted on the piston rod of the cylinder; The clamping mechanism comprises a first roller assembly and a second roller assembly which are horizontally slidably connected on the base along the direction perpendicular to the axis of the tube positioning shaft, and a pushing group for applying force to make the first roller assembly and the second roller assembly close to each other, the first roller assembly and the second roller assembly are centrally symmetrically arranged with the vertical plane where the tube positioning shaft is located as the center; The driving mechanism comprises a driving roller and a driving motor which are mounted on the base, the driving roller is located below the position between the first roller assembly and the second roller assembly, and the driving roller and the driving motor are drivingly connected; The driving roller, the first roller assembly and the second roller assembly are respectively arranged in parallel with the tube positioning shaft; The first roller assembly, the second roller assembly and the driving roller jointly enclose a winding space.

2. The device according to claim 1, wherein: The tube positioning shaft comprises coaxially arranged first and second shaft segments, the diameter of the first shaft segment is greater than that of the second shaft segment, one end of the first shaft segment is connected with the second shaft segment, and the other end of the first shaft segment is mounted on the piston rod of the cylinder.

3. The device according to claim 1, wherein: The pushing group comprises a first pushing sub-group located on the side of the first roller assembly away from the second roller assembly, and a second pushing sub-group located on the side of the second roller assembly away from the first roller assembly; The first pushing sub-group comprises a first shaft rod mounted on the first roller assembly, a first spring sleeved on the first shaft rod, and a first block mounted on the base, the first shaft rod is horizontally arranged and vertically arranged with the tube positioning shaft, the first block is located on the side of the first spring away from the first roller assembly, one end of the first spring abuts against the first roller assembly, and the other end abuts against the first block; The second pushing sub-group comprises a second shaft rod mounted on the second roller assembly, a second spring sleeved on the second shaft rod, and a second block mounted on the base, the second shaft rod is horizontally arranged and vertically arranged with the tube positioning shaft, the second block is located on the side of the second spring away from the second roller assembly, one end of the second spring abuts against the second roller assembly, and the other end abuts against the second block.

4. The device according to claim 3, wherein: The base is provided with a slide rail which is horizontally arranged and vertically arranged with the tube positioning shaft, and the first roller assembly and the second roller assembly are respectively slidably connected on the slide rail. The two ends of the slide rail are a first end and a second end, the first end is located on the side of the first roller assembly away from the second roller assembly, and the second end is located on the side of the second roller assembly away from the first roller assembly; The first block is installed at a position corresponding to the first end of the base; The second block is installed at a position corresponding to the second end of the base.

5. The film winding device according to claim 4, wherein: The first roller assembly and the second roller assembly each include a bearing seat in sliding connection with the slide rail and a roller body in rotational connection with the bearing seat, each of the roller bodies is arranged in parallel with the pipe positioning shaft, the first shaft rod is installed on the bearing seat of the first roller assembly, and the second shaft rod is installed on the bearing seat of the second roller assembly.

6. The film winding device according to claim 5, wherein: The roller body of the first roller assembly includes a first end section, a middle section and a second end section arranged in sequence along the axial direction of the roller body, wherein the diameters of the first end section and the second end section are greater than the diameter of the middle section; The roller body of the second roller assembly has the same structure as the roller body of the first roller assembly; The middle section of the first roller assembly and the middle section of the second roller assembly are arranged correspondingly.

7. The film winding device according to claim 3, wherein: The first shaft rod is inserted into the first block; The second shaft rod is inserted into the second block.

8. The film winding device according to claim 1, wherein: A mounting seat is fixed on the piston rod of the air cylinder, and the pipe positioning shaft is installed on the mounting seat.

9. The film winding device according to claim 8, wherein: The mounting seat includes an end plate and a connecting piece; The end plate is fixed on the piston rod of the air cylinder, the upper end of the connecting piece is fixed on the end plate, and the pipe positioning shaft is installed on the connecting piece.

10. A roll device as claimed in claim 8, characterized in that: An upright guide rod is further fixed on the upper side of the mounting seat, and the guide rod is in upright sliding connection with the base.

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