Pinch roll device for double-drawing film production line

Abstract

The utility model belongs to the field of film production, and discloses a pinch roll device for a double-drawing film production line, which comprises a pair of second slide rails which are vertically arranged upwards, a pair of symmetrically-placed sliding blocks is slidably connected into each second sliding rail, fixing grooves are formed in the sides, away from the corresponding second sliding rails, of the sliding blocks, fixing blocks are slidably connected into the fixing grooves, horizontally-placed rotating rods are rotatably connected to the ends, away from the sliding blocks, of the fixing blocks, and coaxially-placed edge clamping rollers are fixed to the other ends of the rotating rods; limiting holes are formed in the fixing blocks and are blind holes. Limiting boxes are fixed to the sliding blocks, the ends, close to the sliding blocks, of the limiting boxes are open, limiting shafts are slidably connected into the limiting boxes, one ends of the limiting shafts slidably penetrate through the side walls of the sliding blocks and extend into the fixing grooves, the ends of the limiting shafts are inserted into the limiting holes, and the limiting shafts are equal to the limiting holes in diameter. The problem that in the prior art, an edge clamping roller is inconvenient to disassemble and assemble is solved.

Description

Technical Field

[0001] The utility model belongs to the field of film production, and in particular relates to a clamping roller device for a double-stretch film production line. Background Art

[0002] Biaxially stretched film is a plastic film produced by a biaxially stretched process. During the production of biaxially stretched film, the film needs to be limited by a clamping roller device to ensure that the film is flattened, thereby improving the production quality of the biaxially stretched film; for example, the Chinese patent application number CN202021615758.3 discloses a film production equipment, which includes a clamping roller device, the clamping roller device includes a frame and a clamping roller group arranged on the frame, and the two groups of clamping roller groups are distributed on the left and right sides of the frame. The film passes through the clamping roller group and is wound. The clamping roller group includes a first clamping roller and a second clamping roller. The film passes through the middle of the first clamping roller and the second clamping roller. The first clamping roller is connected to the first support rod, and the second clamping roller is connected to the second support rod. The first support rod and / or the second support rod are sleeved on the frame and slide along the frame. The first support rod or the second support rod is connected to the drive unit, and the drive unit drives the first support rod or the second support rod so that the first clamping roller and the second clamping roller clamp the film. The utility model can avoid the problems of edge shrinkage and bubble formation when the film is rolled up, reduces the scrap rate of the film, has a better clamping effect, and can increase the adjustability of the device.

[0003] Although the above patent can realize the production and processing of thin films, in the actual production process, the clamping rollers need to be regularly maintained or repaired and replaced. However, since the above patent only records that the first clamping roller is connected to the first support rod and the second clamping roller is connected to the second support rod, the existing technology has the problem of being inconvenient to disassemble and assemble the clamping rollers. Utility Model Content

[0004] In view of the shortcomings of the existing technology, the purpose of the present invention is to provide a clamping roller device for a double-stretch film production line, which solves the problem in the existing technology that it is inconvenient to disassemble and assemble the clamping roller.

[0005] The purpose of the utility model can be achieved through the following technical solutions:

[0006] A nip roller device for a double-stretch film production line comprises a pair of second slide rails placed vertically upward;

[0007] A pair of symmetrically placed sliders are slidably connected in the second slide rails, and a fixing groove is provided on the side of the slider away from the corresponding second slide rail. A fixing block is slidably connected in the fixing groove. The end of the fixing block away from the slider is rotatably connected to a horizontally placed rotating rod, and the other end of the rotating rod is fixed with a coaxially placed clamping roller. A limiting hole is provided on the fixing block, and the limiting hole is a blind hole.

[0008] A limit box is fixed on the slider, and the limit box is open near the end of the slider. A limit shaft is slidably connected inside the limit box. One end of the limit shaft slides through the side wall of the slider and extends into the fixed groove. The end of the limit shaft is inserted into the limit hole, and the diameter of the limit shaft is equal to that of the limit hole.

[0009] The principles and effects of the above technical solution are as follows:

[0010] When the clamping roller needs to be disassembled, the limiting shaft is pulled out from the limiting hole. At this time, the fixing block can be taken out from the fixing groove, so that the fixing block and the clamping roller are disassembled and removed; when the clamping roller needs to be installed, the fixing block is first inserted into the fixing groove, and then the end of the limiting shaft is pushed into the limiting hole, so as to achieve the purpose of facilitating and quickly disassembling or installing the clamping roller.

[0011] A spring is fixedly connected to the inner wall of the limit box away from the opening end, and the other end of the spring is fixed to the end of the limit shaft away from the limit hole, so that the spring is always in a compressed state;

[0012] The circumferential wall of the limit box is provided with a movable groove coaxially arranged with the limit shaft, and a push plate is slidably connected to the movable groove, and one end of the push plate is fixed to the limit shaft;

[0013] A connecting plate is fixed on one side of the fixed block close to the rotating rod, and a connecting shaft is detachably connected to the connecting plate, and the connecting shaft slides through the connecting plate;

[0014] A connecting hole is opened on one side of the peripheral wall of the rotating rod close to the corresponding connecting shaft, one end of the connecting shaft is inserted into the corresponding connecting hole, and the peripheral wall of the connecting shaft is in contact with the peripheral wall of the connecting hole;

[0015] A horizontally placed first slide rail is provided between the two second slide rails, a pair of symmetrically placed movable blocks are slidably connected in the first slide rail, and the two second slide rails are respectively fixed to the upper ends of the two movable blocks;

[0016] The second slide rails are each provided with a vertically placed slide groove, the sliders are slidably engaged in the slide groove, the slide grooves are each rotatably connected to a coaxially placed second screw, the sliders are threadedly sleeved on the second screw, and the second screw is located in the same slide groove, and the threads on both sides of the symmetry plane of the two sliders have opposite spiral directions;

[0017] The second sliding rails are all fixedly mounted with a second rotating motor, and the output ends of the second rotating motors are all connected to the upper ends of the second screw rods.

[0018] The nouns, conjunctions or adjectives involved in the above technical solution are explained as follows:

[0019] Fixed connection: refers to the process of connecting two separate profiles or parts into a complex part or component using fasteners such as screws, bolts and rivets.

[0020] Sliding connection: Two objects are in contact but not fixed, and can slide relative to each other.

[0021] Beneficial effects of the utility model:

[0022] 1. When the side clamp roller needs to be disassembled, the limiting shaft is pulled out from the limiting hole. At this time, the fixing block can be taken out from the fixing groove, so that the fixing block and the side clamp roller can be disassembled and removed; when the side clamp roller needs to be installed, the fixing block is first inserted into the fixing groove, and then the end of the limiting shaft is pushed into the limiting hole, so as to achieve the purpose of quick disassembly or installation of the side clamp roller;

[0023] 2. Through the elastic force of the spring, the limit shaft can always be pushed and pulled toward the limit hole end to prevent the limit shaft from accidentally sliding out of the limit hole during use;

[0024] 3. By setting the first slide rail and the movable block, the distance between the second slide rails on both sides can be adjusted to suit the production and processing of films of different widths; by setting the second screw, the slider and the second rotating motor, the two clamping rollers in the same second slide rail can be controlled to move closer or farther away from each other, thereby suiting the production and processing of films of different thicknesses. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, for ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0026] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0027] Figure 2 It is a partial structural diagram of any second chute of the present utility model;

[0028] Figure 3 This is a partial structural diagram of the slider of the utility model;

[0029] Figure 4 This is a partial structural diagram of the limit axis of the utility model;

[0030] Figure 5 It is a partial structural schematic diagram of the second screw of the utility model. DETAILED DESCRIPTION

[0031] The following will be combined with the accompanying drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0032] Combined with this Figures 1 to 5 The following describes an embodiment of a clamping roller device for a double-stretch film production line. Specifically, the clamping roller device for a double-stretch film production line is constructed as a split structure, which includes a second slide rail 2, a slider 3, a fixing groove 31, a fixing block 4, a rotating rod 5, a clamping roller 6, a limiting hole 16, and other components. When the clamping roller 6 needs to be removed, the limiting shaft 10 is pulled out of the limiting hole 16. At this time, the fixing block 4 can be removed from the fixing groove 31, so that the fixing block 4 and the clamping roller 6 can be removed. When the clamping roller 6 needs to be installed, the fixing block 4 is first inserted into the fixing groove 31, and then the end of the limiting shaft 10 is pushed and inserted into the limiting hole 16, thereby achieving the purpose of facilitating the rapid removal or installation of the clamping roller 6.

[0033] Please refer to Figures 1 to 5 , a nip roller device for a double-stretch film production line, comprising a pair of second slide rails 2 placed vertically upward;

[0034] A pair of symmetrically placed sliders 3 are slidably connected inside the second slide rails 2. A fixing groove 31 is provided on the side of the sliders 3 away from the corresponding second slide rails 2. A fixing block 4 is slidably connected in the fixing groove 31. The ends of the fixing blocks 4 away from the sliders 3 are rotatably connected to horizontally placed rotating rods 5. The other ends of the rotating rods 5 are fixed with coaxially placed clamping rollers 6. A limiting hole 16 is provided on the fixing blocks 4, and the limiting hole 16 is a blind hole.

[0035] A limit box 9 is fixed on each slider 3. The limit box 9 is open near the end of the slider 3. A limit shaft 10 is slidably connected inside the limit box 9. One end of the limit shaft 10 slides through the side wall of the slider 3 and extends into the fixing groove 31. The end of the limit shaft 10 is inserted into the limit hole 16. The diameter of the limit shaft 10 is equal to that of the limit hole 16.

[0036] When it is necessary to disassemble the clamping roller 6, the limiting shaft 10 is pulled out from the limiting hole 16. At this time, the fixing block 4 can be taken out from the fixing groove 31, so that the fixing block 4 and the clamping roller 6 are disassembled and removed; when it is necessary to install the clamping roller 6, the fixing block 4 is first inserted into the fixing groove 31, and then the end of the limiting shaft 10 is pushed into the limiting hole 16, so as to achieve the purpose of facilitating and quickly disassembling or installing the clamping roller 6.

[0037] In order to prevent the limit shaft 10 from accidentally sliding out of the limit hole 16 during use, a spring 11 is fixedly connected to the inner wall of the limit box 9 away from the open end, and the other end of the spring 11 is fixed to the end of the limit shaft 10 away from the limit hole 16, and the spring 11 is always in a compressed state; through the elastic force of the spring 11, the limit shaft 10 can always be pushed and pulled toward the end of the limit hole 16, thereby preventing the limit shaft 10 from accidentally sliding out of the limit hole 16 during use.

[0038] The limit box 9 is provided with a movable groove 91 on the surrounding wall which is coaxial with the limit shaft 10. A push plate 12 is slidably connected to the movable groove 91, and one end of the push plate 12 is fixed to the limit shaft 10. Through the setting of the push plate 12 and the movable groove 91, the purpose of facilitating the telescopic movement of the limit shaft 10 is achieved.

[0039] During the installation process, when the clamping roller 6 is held to insert the fixing block 4 into the fixing groove 31, the fixing block 4 can easily rotate around the rotating rod 5. A connecting plate 7 is fixed on one side of the fixing block 4 close to the rotating rod 5. A connecting shaft 8 is detachably connected to the connecting plate 7, and the connecting shaft 8 slides through the connecting plate 7.

[0040] A connecting hole 15 is provided on the side of the peripheral wall of the rotating rod 5 close to the corresponding connecting shaft 8. One end of the connecting shaft 8 is inserted into the corresponding connecting hole 15, and the peripheral wall of the connecting shaft 8 is in contact with the peripheral wall of the connecting hole 15. When installing the fixing block 4 and the clamping roller 6, first place the connecting shaft 8 on the connecting plate 7, then rotate the fixing block 4 so that the connecting shaft 8 and the connecting hole 15 are coaxial, and then insert the connecting shaft 8 into the connecting hole 15. The fixing block 4 and the rotating rod 5 are limited and constrained by the connecting plate 7 and the connecting shaft 8. After the installation is completed, the connecting shaft 8 is removed from the connecting plate 7.

[0041] A horizontally placed first slide rail 1 is provided between the two second slide rails 2. A pair of symmetrically placed movable blocks 17 are slidably connected within the first slide rail 1. The two second slide rails 2 are respectively fixed to the upper ends of the two movable blocks 17. The two movable blocks 17 can be pushed toward or away from each other along the axis of the first slide rail 1 to adjust the distance between the clamping rollers 6 on the second slide rails 2 on both sides, so as to be suitable for the production and processing of films of different widths.

[0042] Preferably, a first screw rod placed coaxially is rotatably connected in the first slide rail 1, and the thread spiral directions of the first screw rod on both sides of the symmetry plane of the two movable blocks 17 are opposite, a first rotating motor is installed at either end of the first slide rail 1, and the output end of the first rotating motor is connected to either end of the first screw rod, the movable blocks 17 are all threadedly sleeved on the first screw rod, and the movable blocks 17 are all slidingly engaged with the first slide rail 1; the first rotating motor can be turned on to drive the first screw rod to rotate, and the first screw drives the movable block 17 to perform thread transmission, and the rotation direction of the output end of the first rotating motor is controlled and adjusted, thereby automatically controlling the two movable blocks 17 to approach or move away from each other.

[0043] In order to facilitate the control and adjustment of the distance between the two clamping rollers 6 on the same second slide rail 2, a vertically placed slide groove is provided on the second slide rail 2, and the sliders 3 are slidably engaged in the slide groove. A coaxially placed second screw 14 is rotatably connected in the slide groove, and the sliders 3 are threadedly sleeved on the second screw 14, and the second screw 14 is located in the same slide groove. The screw directions of the two sliders 3 on both sides of the symmetry plane are opposite; by rotating the second screw 14, the slider 3 is driven to perform thread transmission, so as to control and adjust the two clamping rollers 6 in the same second slide rail 2 to approach or move away from each other, and thus it is suitable for the production and processing of films of different thicknesses.

[0044] A second rotating motor 13 is fixedly mounted on each of the second slide rails 2 , and the output end of the second rotating motor 13 is connected to the upper end of the second screw rod 14 ; the second rotating motor 13 is configured to automatically drive the second screw rod 14 to rotate.

[0045] Throughout this specification, references to terms such as "one embodiment," "example," or "specific example" indicate that a specific feature, structure, material, or characteristic described in conjunction with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, schematic representations of these terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

[0046] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are merely illustrative of the principles of the present invention. Various changes and improvements may be made to the present invention without departing from the spirit and scope of the present invention, and such changes and improvements shall fall within the scope of the present invention.

Claims

1. A roller device for a double-stretch film production line, comprising a pair of second slide rails (2) placed vertically upward, characterized in that: A pair of symmetrically placed sliders (3) are slidably connected in the second slide rail (2), a fixed groove (31) is provided on the side of the slider (3) away from the corresponding second slide rail (2), a fixed block (4) is slidably connected in the fixed groove (31), the end of the fixed block (4) away from the slider (3) is rotatably connected to a horizontally placed rotating rod (5), the other end of the rotating rod (5) is fixed with a coaxially placed clamping roller (6), and a limiting hole (16) is provided on the fixed block (4), and the limiting hole (16) is a blind hole; A limit box (9) is fixed on each slider (3), and the limit box (9) is open near the end of the slider (3). A limit shaft (10) is slidably connected in the limit box (9), and one end of the limit shaft (10) slides through the side wall of the slider (3) and extends into the fixing groove (31). The end of the limit shaft (10) is inserted into the limit hole (16), and the diameter of the limit shaft (10) is equal to that of the limit hole (16).

2. The nip roller device for a double-stretch film production line according to claim 1, characterized in that: A spring (11) is fixedly connected to the inner wall of the limit box (9) away from the open end, and the other end of the spring (11) is fixed to the end of the limit shaft (10) away from the limit hole (16), and the spring (11) is always in a compressed state.

3. The nip roller device for a double-stretch film production line according to claim 2, characterized in that: The peripheral wall of the limit box (9) is provided with a movable groove (91) coaxially arranged with the limit shaft (10), and a push plate (12) is slidably connected to the movable groove (91), and one end of the push plate (12) is fixed to the limit shaft (10).

4. The nip roller device for a double-stretch film production line according to claim 3, characterized in that: A connecting plate (7) is fixed on one side of the fixed block (4) close to the rotating rod (5), and a connecting shaft (8) is detachably connected to the connecting plate (7), and the connecting shaft (8) slides through the connecting plate (7); A connecting hole (15) is provided on a side of the peripheral wall of the rotating rod (5) close to the corresponding connecting shaft (8), one end of the connecting shaft (8) is inserted into the corresponding connecting hole (15), and the peripheral wall of the connecting shaft (8) is in contact with the peripheral wall of the connecting hole (15).

5. The nip roller device for a double-stretch film production line according to claim 4, characterized in that: A horizontally placed first slide rail (1) is provided between the two second slide rails (2); a pair of symmetrically placed movable blocks (17) are slidably connected in the first slide rail (1); and the two second slide rails (2) are respectively fixed to the upper ends of the two movable blocks (17).

6. The nip roller device for a double-stretch film production line according to claim 5, characterized in that: The second slide rails (2) are each provided with a vertically placed slide groove, the sliders (3) are each slidably engaged in the slide groove, the slide groove is rotatably connected with a coaxially placed second screw (14), the sliders (3) are each threadedly sleeved on the second screw (14), and the second screw (14) is located in the same slide groove, and the screw threads on both sides of the symmetry plane of the two sliders (3) are in opposite directions.

7. The nip roller device for a double-stretch film production line according to claim 6, characterized in that: A second rotating motor (13) is fixedly mounted on each of the second slide rails (2), and an output end of the second rotating motor (13) is connected to an upper end of the second screw rod (14).

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