Clamping device for film transverse stretching machine

Abstract

The utility model discloses a clamping device for a film transverse stretching machine. The clamping device comprises a frame; the bottom of the hydraulic unit is fixedly connected with the top of the frame; the top of the adjusting mechanism is fixedly connected with a telescopic rod of the hydraulic unit; the bottom of the clamping mechanism is fixedly connected with the bottom of the adjusting mechanism; the outer wall of the sliding block is in sliding connection with the inner wall of the frame through a sliding groove, and the sliding groove is formed in the wall of the frame; the utility model relates to the technical field of films, the clamping mechanism is arranged, the clamping mechanism is sucked on the film through the suction cup, soft contact is used, damage of the clamping mechanism to the film is reduced, after the suction cup completes clamping, external air can enter the suction cup only by pulling out an air plug, and the air plug is not required to be pulled out. According to the clamping device for the film transverse stretching machine, the purpose of the clamping device for the film transverse stretching machine is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of thin films, in particular to a clamping device used for a thin film transverse stretching machine. Background Art

[0002] The transverse stretching machine is a device for transverse stretching of film. It is mainly composed of guide rails and chain clamps. The guide rails are endlessly rotating, with one guide rail on each side. The chain clamps are installed on the guide rails and can be opened and closed flexibly and freely. They run synchronously under the drive of the motor. At the same time, the guide rails gradually widen to achieve transverse stretching of the sheet. In the operation of the equipment, clamping is a very important link.

[0003] However, in the prior art, traditional equipment usually uses hard components to clamp the film, but during the clamping process, the hard components may damage the surface of the film due to uneven clamping force, thereby affecting the subsequent production process of the film. In addition, the traditional clamping device usually has a fixed clamping force. Therefore, when in use, due to different production batches, the clamping force of the clamping device needs to be adjusted, but traditional equipment cannot be adjusted, and the only way is to increase production costs by purchasing additional clamping devices. Utility Model Content

[0004] In view of the deficiencies of the prior art, the technical solution adopted by the utility model to solve the technical problems is: a clamping device for a film transverse stretching machine, comprising:

[0005] frame;

[0006] A hydraulic unit, wherein the bottom of the hydraulic unit is fixedly connected to the top of the frame, and the inner wall of the hydraulic unit is slidably connected to a telescopic rod;

[0007] An adjusting mechanism, the top of which is fixedly connected to the telescopic rod of the hydraulic unit, and the adjusting mechanism is used to adjust the clamping force of the clamping device;

[0008] A clamping mechanism, the bottom of which is fixedly connected to the bottom of the adjusting mechanism, and the clamping mechanism is used to clamp the film;

[0009] A slider, the outer wall of which is slidably connected to the inner wall of the frame via a slide groove, and the slide groove is opened in the wall of the frame;

[0010] The clamping mechanism includes an outer frame, the inner wall of the outer frame is fixedly connected to the inner frame, the inner wall of the inner frame is fixedly connected to a suction cup, and the suction cup is linearly arrayed along the outer wall of the inner frame, the inner wall of the outer frame is slidably connected to an air plug, a pull handle is provided at the bottom of the air plug, the outer wall of the pull handle is fixedly connected to a connecting plate, the inner wall of the connecting plate is slidably connected to the outer wall of the air plug, the clamping mechanism is divided into two parts, the upper and lower parts have the same structure, the air plug in the bottom structure is connected to the pull handle, and the air plug of the top mechanism is connected to the connecting plate, and the top air plug can slide in the connecting plate.

[0011] Preferably, the outer wall of the slider is fixedly connected to the outer wall of the outer frame, the inner wall of the outer frame is fixedly connected to the outer wall of the suction cup, the outer wall of the inner frame is fixedly connected to a limiting frame, the inner wall of the limiting frame is slidably connected to the outer wall of the air plug, a ventilation groove is opened in the wall of the outer frame, a circular groove is opened in the wall of the inner frame, and the air plug is slidably connected to the inner wall of the inner frame through the circular groove.

[0012] Preferably, the adjustment mechanism includes a fixed cylinder, the inner wall of the fixed cylinder is slidably connected to a limiting column, the inner wall of the limiting column is slidably connected to an insertion rod through a limiting groove, and the limiting groove is opened in the wall of the limiting column, and the limiting groove is linearly arrayed along the central axis of the limiting column.

[0013] Preferably, the inner wall of the insertion rod is slidably connected to a limiting rod, the outer wall of the limiting rod is fixedly connected to a tension spring, the end of the tension spring away from the limiting rod is fixedly connected to the outer wall of the insertion rod, the outer wall of the insertion rod is slidably connected to the inner wall of the fixed tube, a through groove is opened in the wall of the fixed tube, and the insertion rod is slidably connected to the inner wall of the fixed tube via the through groove.

[0014] Preferably, the outer wall of the limit rod is slidably connected to the inner wall of the fixed cylinder through a positioning groove, and the positioning groove is opened in the wall of the fixed cylinder, the positioning groove limits the position of the limit rod, the top of the limit column is fixedly connected to the telescopic rod of the hydraulic unit, and the bottom of the fixed cylinder is fixedly connected to the top of the outer frame.

[0015] The beneficial effects of the utility model are as follows:

[0016] 1. The utility model provides a clamping mechanism, which clamps the film by a suction cup on the film and uses soft contact to reduce the damage to the film caused by the clamping mechanism. When the suction cup completes clamping, it only needs to pull out the air plug to allow the outside air to enter the inside of the suction cup, and the suction cup can release the fixation of the film, thereby achieving the purpose of clamping the film with soft contact to reduce the damage to the film and solving the problem that traditional equipment cannot reduce the damage to the film.

[0017] 2. The utility model sets an adjustment mechanism, utilizes an insert rod to insert into the fixed tube and pass through the limit column, so that the fixed tube can be fixed on the limit column, and then the limit rod is inserted into the fixed tube to limit the position of the limit rod, thereby achieving the purpose of adjusting the clamping force of the suction cup mechanism and solving the problem that the traditional equipment cannot adjust the clamping force of the clamping mechanism. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is the front view of the utility model;

[0019] Figure 2 It is a cross-sectional view of the utility model;

[0020] Figure 3 It is a structural schematic diagram of the clamping mechanism of the utility model;

[0021] Figure 4 This utility model Figure 3 A schematic diagram of the structure at A;

[0022] Figure 5 It is a structural schematic diagram of the regulating mechanism of the utility model.

[0023] In the figure: 1. frame; 2. hydraulic unit; 3. clamping mechanism; 31. outer frame; 32. inner frame; 33. suction cup; 34. ventilation groove; 35. pull handle; 36. connecting plate; 37. air plug; 38. limit frame; 4. adjustment mechanism; 41. limit column; 42. limit groove; 43. insertion rod; 44. tension spring; 45. limit rod; 46. fixing cylinder; 47. positioning groove; 5. slide groove; 6. slider. DETAILED DESCRIPTION

[0024] The present invention is further described in detail below in conjunction with the accompanying drawings and specific embodiments. The embodiments of the present invention are provided for the purpose of illustration and description, and are not intended to be exhaustive or to limit the present invention to the disclosed forms. Many modifications and variations are obvious to those of ordinary skill in the art. The embodiments are selected and described in order to better illustrate the principles and practical applications of the present invention, and to enable those of ordinary skill in the art to understand the present invention and design various embodiments with various modifications suitable for specific purposes.

[0025] Example:

[0026] See also Figure 1 - Figure 5 The utility model provides a technical solution: a clamping device for a film transverse stretching machine, comprising:

[0027] Frame 1;

[0028] A hydraulic unit 2, the bottom of the hydraulic unit 2 is fixedly connected to the top of the frame 1;

[0029] An adjusting mechanism 4, the top of which is fixedly connected to the telescopic rod of the hydraulic unit 2;

[0030] A clamping mechanism 3, the bottom of which is fixedly connected to the bottom of the adjusting mechanism 4;

[0031] A slider 6, the outer wall of the slider 6 is slidably connected to the inner wall of the frame 1 through a slide groove 5, and the slide groove 5 is opened in the wall of the frame 1;

[0032] The clamping mechanism 3 includes an outer frame 31, the inner wall of the outer frame 31 is fixedly connected to the inner frame 32, the inner wall of the inner frame 32 is fixedly connected to the suction cup 33, and the suction cup 33 is linearly arrayed along the outer wall of the inner frame 32, the inner wall of the outer frame 31 is slidably connected to the air plug 37, the bottom of the air plug 37 is provided with a pull handle 35, the outer wall of the pull handle 35 is fixedly connected to a connecting plate 36, the inner wall of the connecting plate 36 is slidably connected to the outer wall of the air plug 37, and a groove is provided in the wall of the air plug 37 so that the connecting plate 36 can limit the position of the air plug 37, and the air plug 37 can slide in the connecting plate 36, the outer wall of the slider 6 is fixedly connected to the outer wall of the outer frame 31, the inner wall of the outer frame 31 is fixedly connected to the outer wall of the suction cup 33, and the outer wall of the inner frame 32 is fixedly connected to a limiting frame 38.

[0033] The inner wall of the limit frame 38 is slidably connected to the outer wall of the air plug 37, and the position of the air plug 37 is limited by the limit frame 38 to prevent the air plug 37 from sliding out of the outer frame 31. A ventilation groove 34 is opened in the wall of the outer frame 31. The adjustment mechanism 4 includes a fixed cylinder 46, and the inner wall of the fixed cylinder 46 is slidably connected to the limit column 41. The inner wall of the limit column 41 is slidably connected to the insertion rod 43 through the limit groove 42, and the limit groove 42 is opened in the wall of the limit column 41.

[0034] The inner wall of the insertion rod 43 is slidably connected to the limit rod 45, and the outer wall of the limit rod 45 is fixedly connected with a tension spring 44, and the end of the tension spring 44 away from the limit rod 45 is fixedly connected to the outer wall of the insertion rod 43, and the outer wall of the insertion rod 43 is slidably connected to the inner wall of the fixed cylinder 46, and the outer wall of the limit rod 45 is slidably connected to the inner wall of the fixed cylinder 46 through a positioning groove 47, and the positioning groove 47 is opened in the wall of the fixed cylinder 46, the top of the limit column 41 is fixedly connected to the telescopic rod of the hydraulic unit 2, and the bottom of the fixed cylinder 46 is fixedly connected to the top of the outer frame 31, the insertion rod 43 is used to limit the position of the fixed cylinder 46, and the limit rod 45 limits the position of the insertion rod 43 to prevent the insertion rod 43 from accidentally falling off during operation.

[0035] Working principle:

[0036] When in use, first place the frame 1 on the ground. After the position of the frame 1 is stable, place the film between the clamping mechanisms 3, and then start the hydraulic unit 2. The telescopic rod in the hydraulic unit 2 drives the clamping mechanism 3 to move downward, thereby clamping the film. In addition, when the pressure of the clamping mechanism 3 needs to be adjusted due to production needs, the position of the clamping mechanism 3 can be adjusted through the adjustment mechanism 4, thereby changing the clamping force of the clamping mechanism 3.

[0037] The clamping mechanism 3 is divided into two parts, an upper part and an lower part. Therefore, when the clamping mechanism 3 clamps the film, the bottom clamping mechanism 3 remains stationary, and the top clamping mechanism 3 moves downward under the drive of the hydraulic unit 2 and approaches the bottom clamping mechanism 3, and fits on the film through the upper and lower suction cups 33, thereby fixing the position of the film. It should be noted that the upper and lower parts of the clamping mechanism 3 have the same structure and are connected by a connecting plate 36. Therefore, when the suction cup 33 is clamped, the connecting plate 36 needs to be pushed toward the outer frame 31 so that the air plug 37 blocks the circular groove on the inner frame 32, thereby preventing outside air from entering the inner frame 32 through the circular groove.

[0038] When the outer frame 31 at the top moves downward driven by the hydraulic unit 2, the outer frame 31 slides in the frame 1 through the slider 6, and the slide groove 5 on the frame 1 is used to limit the sliding position of the outer frame 31. After the suction cup 33 completes the fixation of the film, it is only necessary to pull the handle 35 away from the outer frame 31 to drive the air plug 37 to move through the connecting plate 36. The handle 35 is fixed on the air plug 37 in the bottom clamping mechanism 3, so that the upper and lower air plugs 37 slide out of the inner frame 32 synchronously, and the limit frame 38 is used to limit the position of the air plug 37 to prevent the air plug 37 from sliding out of the outer frame 31. The outside air can enter the outer frame 31 through the ventilation groove 34, and then enter the inner frame 32. After the air enters the inner frame 32, the suction cup 33 is able to release the fixation of the film.

[0039] When the position of the top clamping mechanism 3 needs to be adjusted, it is only necessary to drag the clamping mechanism 3 first, and then slide the limiting rod 45 out of the positioning groove 47. The limiting rod 45 will simultaneously stretch the tension spring 44 during the sliding process, so that the tension spring 44 accumulates elastic potential energy. After the limiting rod 45 completely slides out of the positioning groove 47, the insertion rod 43 can be pulled in the direction away from the limiting column 41, so that the insertion rod 43 slides out of the limiting groove 42. When the insertion rod 43 slides out of the limiting column 41, the position of the fixing tube 46 can be adjusted. After the position of the fixed cylinder 46 is adjusted to the desired position, the insertion rod 43 is reinserted into the limiting column 41 to limit the position of the fixed cylinder 46. After the position of the fixed cylinder 46 is limited, the position of the insertion rod 43 is limited. It is only necessary to align the limiting rod 45 with the positioning groove 47 and then release the pulling force on the limiting rod 45. When the tension spring 44 lacks the tensile force of the limiting rod 45, the elastic potential energy is released to drive the limiting rod 45 to be inserted into the positioning groove 47, thereby limiting the position of the limiting rod 45.

[0040] Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field and related fields without creative work should fall within the scope of protection of the present invention. Structures, devices and operating methods not specifically described and explained in the present invention shall be implemented according to conventional means in the field unless otherwise specified and limited.

Claims

1. A clamping device for a film transverse stretching machine, characterized in that: include: Frame (1); A hydraulic unit (2), the bottom of the hydraulic unit (2) being fixedly connected to the top of the frame (1); An adjusting mechanism (4), the top of the adjusting mechanism (4) being fixedly connected to the telescopic rod of the hydraulic unit (2); A clamping mechanism (3), wherein the bottom of the clamping mechanism (3) is fixedly connected to the bottom of the adjusting mechanism (4); A sliding block (6), wherein the outer wall of the sliding block (6) is slidably connected to the inner wall of the frame (1) via a sliding groove (5), and the sliding groove (5) is formed in the wall of the frame (1); The clamping mechanism (3) comprises an outer frame (31), the inner wall of the outer frame (31) is fixedly connected to the inner frame (32), the inner wall of the inner frame (32) is fixedly connected to the suction cup (33), and the suction cup (33) is arranged in a linear array along the outer wall of the inner frame (32), the inner wall of the outer frame (31) is slidably connected to the air plug (37), a handle (35) is provided at the bottom of the air plug (37), the outer wall of the handle (35) is fixedly connected to the connecting plate (36), and the inner wall of the connecting plate (36) is slidably connected to the outer wall of the air plug (37).

2. The clamping device for a film transverse stretching machine according to claim 1, characterized in that: The outer wall of the sliding block (6) is fixedly connected to the outer wall of the outer frame (31), the inner wall of the outer frame (31) is fixedly connected to the outer wall of the suction cup (33), and the outer wall of the inner frame (32) is fixedly connected to the limiting frame (38).

3. The clamping device for a film transverse stretching machine according to claim 2, characterized in that: The inner wall of the limiting frame (38) is slidably connected to the outer wall of the air plug (37), and a ventilation groove (34) is provided in the wall of the outer frame (31).

4. The clamping device for a film transverse stretching machine according to claim 1, characterized in that: The adjustment mechanism (4) comprises a fixed cylinder (46), the inner wall of the fixed cylinder (46) being slidably connected to a limiting column (41), the inner wall of the limiting column (41) being slidably connected to an insertion rod (43) via a limiting groove (42), and the limiting groove (42) being provided in the wall of the limiting column (41).

5. The clamping device for a film transverse stretching machine according to claim 4, characterized in that: The inner wall of the insertion rod (43) is slidably connected to a limiting rod (45), the outer wall of the limiting rod (45) is fixedly connected to a tension spring (44), one end of the tension spring (44) away from the limiting rod (45) is fixedly connected to the outer wall of the insertion rod (43), and the outer wall of the insertion rod (43) is slidably connected to the inner wall of the fixing tube (46).

6. The clamping device for a film transverse stretching machine according to claim 5, characterized in that: The outer wall of the limiting rod (45) is slidably connected to the inner wall of the fixed cylinder (46) via a positioning groove (47), and the positioning groove (47) is formed in the wall of the fixed cylinder (46). The top of the limiting column (41) is fixedly connected to the telescopic rod of the hydraulic unit (2), and the bottom of the fixed cylinder (46) is fixedly connected to the top of the outer frame (31).

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