Paperboard pressing mechanism

Abstract

The utility model discloses a paperboard pressing mechanism, and belongs to the technical field of paperboard processing, the paperboard pressing mechanism comprises a side plate, a door frame is fixedly erected at the upper end of the side plate, a hydraulic cylinder is fixedly mounted on the lower end face of the top of the door frame, a buffering movable frame is fixedly connected to the output shaft end of the hydraulic cylinder, and a movable electric roller is fixedly mounted on the buffering movable frame; a mounting cylinder is fixedly arranged on the inner side face of the bottom of the side plate, and a fixed electric roller is fixedly mounted on the mounting cylinder. A hydraulic cylinder can drive a movable electric roller to move up and down so as to change the distance between the movable electric roller and a fixed electric roller, the extrusion distance can be adjusted according to the thickness of a paperboard, and if extrusion force applied by the hydraulic cylinder is too large, a buffer sliding shaft can slide upwards under the action of counter-acting force; and the movable electric roller moves upwards relative to the buffering movable frame, so that the distance between the movable electric roller and the fixed electric roller is increased, the extrusion force is passively reduced, and the paperboard is protected.

Description

Technical Field

[0001] The present application relates to the technical field of cardboard processing, and in particular to a cardboard pressing mechanism. Background Art

[0002] Cardboard lamination is the cardboard bonding process technology, which refers to the processing technology of bonding several layers of cardboard together using glue or other adhesives. Cardboard is a board made of cellulose fiber, which has the characteristics of light weight, high strength, and good rigidity. It is widely used in packaging, box making and other fields. The more common cardboard forms usually include corrugated paper and a layer of surface cover paper. In order to increase the thickness and improve the aesthetics, it is necessary to stick the cover paper with a pattern on the surface on the corrugated paper. During the operation, the corrugated paper is first placed in the stacking area, and then the pulley is used to feed the stacked corrugated paper from the bottom to the front, and the two sides are flush under the action of the protective plate to facilitate better feeding. After the corrugated paper is conveyed out, the glue injection area delivers glue to the surface of the corrugated paper, and then the cover paper is pressed on the corrugated paper to form a whole cardboard, and finally fixed by pressing with a pressure roller.

[0003] The existing cardboard pressing mechanism usually utilizes a pressing roller to squeeze the corrugated paper and the cover paper so that the two are in close contact, thereby ensuring the bonding effect of the glue and the flatness of the finished product surface. Therefore, in order to ensure the pressing effect, the pressing force applied by the pressing roller needs to be large enough, but excessive pressing force will cause the corrugated cardboard to be squeezed and deformed, affecting its use. The existing pressing mechanism for corrugated cardboard is difficult to adjust the pressing force during pressing according to the material and thickness of the cardboard, which will cause inconvenience during the pressing process. Therefore, a cardboard pressing mechanism is proposed to address the above problems. Utility Model Content

[0004] In view of the shortcomings of the prior art, the present application provides a cardboard pressing mechanism that overcomes the shortcomings of the prior art and aims to solve the problem that the existing pressing mechanism for corrugated cardboard is difficult to adjust the extrusion force during pressing according to the material and thickness of the cardboard, thereby causing inconvenience to the pressing operation.

[0005] To achieve the above objectives, this application provides the following technical solutions:

[0006] A cardboard pressing mechanism comprises a side plate, a door frame is fixedly provided on the upper end of the side plate, a hydraulic cylinder is fixedly installed on the lower end surface of the top of the door frame, a buffer movable frame is fixedly connected to the output shaft end of the hydraulic cylinder, the buffer movable frame comprises a movable cross plate, slide cylinders are fixedly provided on the lower end surfaces at both ends of the movable cross plate, a buffer sliding shaft is slidably provided in the slide cylinder, a mounting ring is fixedly connected to the lower end of the buffer sliding shaft, a movable electric roller is fixedly installed on the mounting ring, a buffer strength adjusting piece is fixedly provided on the upper end surfaces at both ends of the movable cross plate, a mounting cylinder is fixedly provided on the inner side surface of the bottom of the side plate, and a fixed electric roller is fixedly installed on the mounting cylinder.

[0007] By adopting the above technical solution, the hydraulic cylinder can be used to drive the movable electric roller to move up and down, thereby changing the distance between it and the fixed electric roller, and then adjusting the extrusion distance and then adjusting the extrusion force according to the thickness of the cardboard. At the same time, if the extrusion force applied by the hydraulic cylinder is too large, the buffer sliding shaft will slide upward under the action of the reaction force, so that the movable electric roller moves up relative to the buffer movable frame, so that the distance between it and the fixed electric roller becomes larger, thereby passively reducing the extrusion force, thereby protecting the cardboard. In particular, the buffer strength adjustment member can adjust the size of the reaction force that needs to be overcome when the buffer sliding shaft slides.

[0008] As a preferred technical solution of the present application, the buffer strength adjustment member includes an externally threaded barrel, a buffer spring is arranged in the externally threaded barrel, an internally threaded sleeve is threadedly arranged outside the externally threaded barrel, and an extrusion shaft is fixedly arranged on the lower end surface of the top plate of the internally threaded sleeve.

[0009] By adopting the above technical solution, the extrusion shaft can be squeezed or moved away from the buffer spring by rotating the internal threaded sleeve, thereby providing a necessary structural basis for adjusting the magnitude of the buffer force.

[0010] As a preferred technical solution of the present application, the top end of the buffer sliding shaft is fixedly provided with an anti-dropping cap slidably arranged in the external threaded barrel, the lower end of the buffer spring is in close contact with the anti-dropping cap, and the lower upper end of the buffer spring is in close contact with the extrusion shaft.

[0011] By adopting the above technical solution, when the buffer sliding shaft slides upward, the anti-drop cap at its top will squeeze the buffer spring to deform it, thereby ensuring that the extrusion force is reduced to play a protective role while also providing sufficient extrusion force to enable the pressing work to proceed smoothly.

[0012] As a preferred technical solution of the present application, the cross-sectional size of the buffer sliding shaft is consistent with the cross-sectional size of the opening of the slide cylinder, and the cross-sectional size of the anti-drop cap is consistent with the cross-sectional size of the opening of the external threaded cylinder.

[0013] By adopting the above technical solution, it can be ensured that the buffer sliding shaft can go straight up and down during the sliding process, so that the movable electric drum as a whole will not tilt when moving up and down.

[0014] As a preferred technical solution of the present application, sliders are fixedly provided at both ends of the movable horizontal plate, guide rails are fixedly provided on the inner side surfaces of the side plates, and the sliders are slidably provided in the guide rails.

[0015] By adopting the above technical solution, when the hydraulic cylinder drives the buffer movable frame to move up and down, the sliders fixed at both ends thereof will slide in the guide rails, thereby ensuring that the buffer movable frame as a whole can move straight up and down when moving up and down.

[0016] As a preferred technical solution of the present application, the movable electric drum comprises an electric drum body, and an outer fixed sleeve of the electric drum body is provided with an anti-slip sleeve layer, and a plurality of anti-slip through holes are opened on the anti-slip sleeve layer.

[0017] By adopting the above technical solution, the friction between the movable electric roller and the cardboard can be increased by the anti-slip layer, so that the pressing mechanism as a whole can play a feeding role, and the anti-slip through hole can also avoid slipping between the movable electric roller and the cardboard due to glue overflow.

[0018] As a preferred technical solution of the present application, the structural composition and size of the fixed electric drum are completely consistent with those of the movable electric drum.

[0019] By adopting the above technical solution, the friction between the fixed electric roller and the cardboard can be increased, so that the pressing mechanism as a whole can play a feeding role, and can also avoid slipping between the fixed electric roller and the cardboard due to glue overflow.

[0020] The beneficial effects of the present application are as follows: the movable electric roller can be driven by the hydraulic cylinder to move up and down, thereby changing the distance between it and the fixed electric roller, thereby being able to adjust the extrusion distance and thus the extrusion force according to the thickness of the cardboard; at the same time, if the extrusion force applied by the hydraulic cylinder is too large, the buffer sliding shaft will slide upward under the action of the reaction force, so that the movable electric roller moves up relative to the buffer movable frame, so that the distance between it and the fixed electric roller becomes larger, thereby passively reducing the extrusion force and protecting the cardboard; in particular, the buffer strength adjustment member can adjust the size of the reaction force that needs to be overcome when the buffer sliding shaft slides. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a schematic diagram of the overall structure of this application;

[0022] Figure 2 This is a schematic diagram of the structure of the buffer movable frame of the present application;

[0023] Figure 3 This is a schematic diagram of the structure of the buffer strength adjustment member of the present application;

[0024] Figure 4 This is a schematic diagram of the electric drum structure of this application.

[0025] In the figure: 1. side panel; 2. door frame; 3. hydraulic cylinder; 4. buffer movable frame; 41. movable cross plate; 42. slide cylinder; 43. buffer sliding shaft; 431. anti-drop cap; 44. mounting ring; 45. buffer strength adjustment member; 451. external threaded cylinder; 452. buffer spring; 453. internal threaded sleeve; 454. extrusion shaft; 46. slide block; 5. movable electric roller; 501. electric roller body; 502. anti-skid sleeve layer; 503. anti-skid through hole; 6. fixed electric roller; 61. mounting cylinder; 7. guide rail. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0027] Reference Figure 1-2 A cardboard pressing mechanism includes a side plate 1, a door frame 2 is fixedly mounted on the upper end of the side plate 1, a hydraulic cylinder 3 is fixedly mounted on the lower end surface of the top of the door frame 2, a buffer movable frame 4 is fixedly connected to the output shaft end of the hydraulic cylinder 3, and the buffer movable frame 4 includes a movable transverse plate 41, slide cylinders 42 are fixedly mounted on the lower end surfaces of both ends of the movable transverse plate 41, a buffer sliding shaft 43 is slidably arranged in the slide cylinder 42, a mounting ring 44 is fixedly connected to the lower end of the buffer sliding shaft 43, a movable electric roller 5 is fixedly mounted on the mounting ring 44, a buffer strength adjusting member 45 is fixedly mounted on the upper end surfaces of both ends of the movable transverse plate 41, a mounting cylinder 61 is fixedly mounted on the inner side surface of the bottom of the side plate 1, and a fixed The electric roller 6, by adopting the above technical solution, can use the hydraulic cylinder 3 to drive the movable electric roller 5 to move up and down, thereby changing the distance between it and the fixed electric roller 6, so as to adjust the extrusion distance and thus the extrusion force according to the thickness of the cardboard. At the same time, if the extrusion force applied by the hydraulic cylinder 3 is too large, the buffer sliding shaft 43 will slide upward under the action of the reaction force, so that the movable electric roller 5 moves up relative to the buffer movable frame 4, so that the distance between it and the fixed electric roller 6 becomes larger, thereby passively reducing the extrusion force, thereby protecting the cardboard. In particular, the buffer strength adjustment member 45 can adjust the size of the reaction force that needs to be overcome when the buffer sliding shaft 43 slides.

[0028] Reference Figure 3The buffer strength adjustment member 45 includes an externally threaded cylinder 451, in which a buffer spring 452 is arranged, and an outer sleeve of the externally threaded cylinder 451 is provided with an internally threaded sleeve 453 threadedly connected thereto, and an extrusion shaft 454 is fixedly arranged on the lower end surface of the top plate of the internally threaded sleeve 453, and an anti-dropping cap 431 slidingly arranged in the externally threaded cylinder 451 is fixedly arranged on the top of the buffer sliding shaft 43, and the lower end of the buffer spring 452 is in close contact with the anti-dropping cap 431, and the lower upper end of the buffer spring 452 is in close contact with the extrusion shaft 454. By adopting the above technical scheme, when the buffer sliding shaft 43 slides upward, the anti-dropping cap 431 at its top will squeeze the buffer spring 452 to deform it, thereby ensuring that the extrusion force is reduced to play a protective role while also providing sufficient extrusion force to enable the pressing work to proceed smoothly. In particular, the extrusion shaft 454 can be squeezed or moved away from the buffer spring 452 by rotating the internally threaded sleeve 453, so as to adjust the size of the buffer force.

[0029] Reference Figure 3 The cross-sectional dimensions of the buffer sliding shaft 43 are consistent with the cross-sectional dimensions of the opening of the slide tube 42, and the cross-sectional dimensions of the anti-drop cap 431 are consistent with the cross-sectional dimensions of the opening of the external threaded tube 451. By adopting the above technical solution, it can be ensured that the buffer sliding shaft 43 can go straight up and down during the sliding process, so that the movable electric drum 5 as a whole will not tilt when moving up and down.

[0030] Reference Figure 1-2 Slide blocks 46 are fixedly provided at both ends of the movable cross plate 41, and guide rails 7 are fixedly provided on the inner side of the side plate 1. The slide blocks 46 are slidably provided in the guide rails 7. By adopting the above technical scheme, when the hydraulic cylinder 3 drives the buffer movable frame 4 to move up and down, the slide blocks 46 fixedly provided at both ends thereof will slide in the guide rails 7, thereby ensuring that the buffer movable frame 4 as a whole can move straight up and down when moving up and down.

[0031] Reference Figure 4 The movable electric roller 5 includes an electric roller body 501, and an anti-skid sleeve layer 502 is fixedly sleeved outside the electric roller body 501. A plurality of anti-skid through holes 503 are opened on the anti-skid sleeve layer 502. By adopting the above technical scheme, the friction between the movable electric roller 5 and the cardboard can be increased through the anti-skid sleeve layer 502, so that the laminating mechanism as a whole can play a feeding role, and the anti-skid through holes 503 can also avoid the slipping between the movable electric roller 5 and the cardboard due to overflowing glue. In addition, the structural composition and size of the fixed electric roller 6 are completely consistent with those of the movable electric roller 5, which can increase the friction between the fixed electric roller 6 and the cardboard, so that the laminating mechanism as a whole can play a feeding role, and can also avoid the slipping between the fixed electric roller 6 and the cardboard due to overflowing glue.

[0032] Working principle: When the lamination process is in progress, the hydraulic cylinder 3 can drive the movable electric roller 5 to move up and down, thereby changing the distance between it and the fixed electric roller 6, so that the extrusion distance can be adjusted according to the thickness of the cardboard and the extrusion force can be adjusted. At the same time, if the extrusion force applied by the hydraulic cylinder 3 is too large, the buffer sliding shaft 43 will slide upward under the action of the reaction force, so that the movable electric roller 5 moves up relative to the buffer movable frame 4, so that the distance between it and the fixed electric roller 6 becomes larger, thereby passively reducing the extrusion force and protecting the cardboard. In particular, the buffer strength adjustment member 45 can adjust the size of the reaction force that needs to be overcome when the buffer sliding shaft 43 slides.

[0033] The buffering principle is that when the buffer sliding shaft 43 slides upward, the anti-drop cap 431 at its top will squeeze the buffer spring 452 to deform it, thereby ensuring that the extrusion force is reduced to play a protective role while also providing sufficient extrusion force to enable the pressing work to proceed smoothly. At the same time, the extrusion shaft 454 can be squeezed or moved away from the buffer spring 452 by rotating the internal threaded sleeve 453, so as to adjust the size of the buffering force.

[0034] In addition, the anti-skid sleeve 502 arranged outside the movable electric roller 5 and the fixed electric roller 6 can increase the friction between the rollers and the cardboard, so that the laminating mechanism as a whole can play a feeding role, and the anti-skid through holes 503 arranged can also avoid slipping between the rollers and the cardboard due to glue overflow.

Claims

1. A cardboard pressing mechanism, comprising a side plate (1), characterized in that: A door frame (2) is fixedly mounted on the upper end of the side plate (1), a hydraulic cylinder (3) is fixedly mounted on the lower end surface of the top of the door frame (2), a buffer movable frame (4) is fixedly connected to the output shaft end of the hydraulic cylinder (3), the buffer movable frame (4) comprises a movable transverse plate (41), slide cylinders (42) are fixedly mounted on the lower end surfaces at both ends of the movable transverse plate (41), a buffer sliding shaft (43) is slidably mounted in the slide cylinder (42), a mounting ring (44) is fixedly connected to the lower end of the buffer sliding shaft (43), a movable electric roller (5) is fixedly mounted on the mounting ring (44), a buffer strength adjustment member (45) is fixedly mounted on the upper end surfaces at both ends of the movable transverse plate (41), a mounting cylinder (61) is fixedly mounted on the inner side surface of the bottom of the side plate (1), and a fixed electric roller (6) is fixedly mounted on the mounting cylinder (61).

2. A cardboard pressing mechanism according to claim 1, characterized in that: The buffer strength adjustment member (45) comprises an externally threaded barrel (451), a buffer spring (452) is arranged in the externally threaded barrel (451), an outer shell of the externally threaded barrel (451) is provided with a threaded internally threaded sleeve (453), and an extrusion shaft (454) is fixedly arranged on the lower end surface of the top plate of the internally threaded sleeve (453).

3. A cardboard pressing mechanism according to claim 2, characterized in that: The top end of the buffer sliding shaft (43) is fixedly provided with an anti-dropping cap (431) slidably arranged in the external threaded cylinder (451), the lower end of the buffer spring (452) is in close contact with the anti-dropping cap (431), and the lower upper end of the buffer spring (452) is in close contact with the extrusion shaft (454).

4. A cardboard pressing mechanism according to claim 3, characterized in that: The cross-sectional dimensions of the buffer sliding shaft (43) are consistent with the cross-sectional dimensions of the opening of the slide cylinder (42), and the cross-sectional dimensions of the anti-drop cap (431) are consistent with the cross-sectional dimensions of the opening of the external threaded cylinder (451).

5. The cardboard pressing mechanism according to claim 1, characterized in that: Slide blocks (46) are fixedly provided at both ends of the movable transverse plate (41), a guide rail (7) is fixedly provided on the inner side surface of the side plate (1), and the slide block (46) is slidably provided in the guide rail (7).

6. A cardboard pressing mechanism according to claim 1, characterized in that: The movable electric roller (5) comprises an electric roller body (501), an outer fixed sleeve of the electric roller body (501) is provided with an anti-skid sleeve layer (502), and a plurality of anti-skid through holes (503) are provided on the anti-skid sleeve layer (502).

7. A cardboard pressing mechanism according to claim 6, characterized in that: The structural composition and dimensions of the fixed electric roller (6) are completely consistent with those of the movable electric roller (5).

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