CN214495029U

CN214495029U - Base paper chuck

Info

Publication number: CN214495029U
Application number: CN202120764947.5U
Authority: CN
Inventors: 周景勇; 张玉明; 吕鸿钧
Original assignee: Tianjin Jinyongcheng Packaging Technology Co ltd
Current assignee: Tianjin Jinyongcheng Packaging Technology Co ltd
Priority date: 2021-04-14
Filing date: 2021-04-14
Publication date: 2021-10-26
Anticipated expiration: 2031-04-14

Abstract

The utility model relates to a body paper chuck, it includes the chuck body, and the one end of chuck body is equipped with the fiber container fixed head, still includes friction disk and the actuating mechanism of drive friction disk axial motion, and the friction disk is located the fiber container fixed head periphery and with chuck body axial sliding fit. The friction disc capable of moving axially is arranged on the base paper chuck, and the friction disc can move towards the direction of the paper tube fixing head under the action of the driving mechanism, so that when the base paper chuck is connected with the whole roll of base paper roll, the base paper chuck can be in static friction fit with a larger area of the end surface of the base paper roll by means of the friction disc, and a larger torque is formed between the chuck and the base paper roll under the condition that the edge of the base paper is not damaged, so that the tension degree of the base paper discharged by the base paper roll can be reliably controlled in the using process.

Description

Base paper chuck

Technical Field

The utility model relates to a body paper chuck.

Background

The base paper is the main material for producing corrugated board and is wound on a paper cylinder. When the base paper is used, the base paper is generally required to be arranged on a paper frame, a brake disc is arranged on the paper frame and is in transmission connection with a base paper chuck, and the base paper chuck is inserted into a paper tube of the base paper and is tightly supported and fixed with the inner wall of the paper tube in an inward expansion mode. However, because the quality of the base paper is large, the friction force between the chuck and the inner wall of the paper tube cannot enable the chuck to be linked with the base paper in the using process, so that the chuck and the paper tube are easy to slip relatively, once the chuck slips, the tightness of the base paper cannot be controlled, and the quality of the corrugated board is reduced (if the base paper is not tensioned, the quality problems of creases and the like of the corrugated board are caused).

Therefore, in the prior art, the clamping teeth are arranged at the root parts of the clamping heads and clamped into the end surfaces of the paper tubes through the clamping teeth, so that the clamping heads and the paper tubes are fixed together. Although the structure of the latch can solve the problem of fixing the chuck and the paper tube, another derived problem is that the latch pierces the end of the paper tube, which causes the edge of a part of the base paper close to the paper tube to be damaged and thus the paper tube cannot be used, which wastes material resources and correspondingly increases the cost of the corrugated board. Furthermore, because the edges of the base paper close to the paper tube are damaged, the base paper is easily broken on a corrugated board production line, and once the base paper is broken, the production is greatly influenced.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a rational in infrastructure, reliable operation, avoid causing the body paper chuck of body paper wearing and tearing.

The purpose of the utility model is realized like this:

the utility model provides a body paper chuck, includes the chuck body, and the one end of chuck body is equipped with the fiber container fixed head, its characterized in that: the paper tube chuck further comprises a friction disc and a driving mechanism for driving the friction disc to move axially, wherein the friction disc is located on the periphery of the paper tube fixing head and is in axial sliding fit with the chuck body. The friction disc can be pressed to the end face of the original paper roll under the action of the driving mechanism, the friction disc is in static friction fit with the end face of the original paper roll, and compared with the simple fit of a paper tube of the original paper roll by a paper tube fixing head, the friction disc has larger torque, so that a base paper chuck is prevented from slipping with the original paper roll, and the friction disc does not cause the damage of the edge of the base paper; in addition, when the original paper roll is unreeled to a certain degree, the friction disc can be controlled to retreat away from the end face of the original paper roll due to the reduction of the mass of the original paper roll, and the paper roll fixing head is matched with the paper roll of the original paper roll in a static friction mode, so that the original paper can be completely unreeled and used at the outer end of the paper roll, and waste is avoided.

The purpose of the utility model can also adopt the following technical measures to solve:

as a more specific scheme, the driving mechanism is arranged outside the chuck body and is in running fit with the chuck body; the driving mechanism is an air cylinder driving mechanism, a lead screw transmission pair driving mechanism, a gear rack transmission pair driving mechanism or a wedge block ejection driving mechanism; the outer side of the friction disc is planar.

As a further scheme, the cylinder driving mechanism comprises a cylinder assembly and a piston assembly which are mutually matched in a telescopic manner, the cylinder assembly and the piston assembly are annular and are sleeved outside the chuck body, a first bearing is arranged between the cylinder assembly and the chuck body, the piston assembly protrudes out of the cylinder assembly, and the piston assembly pushes the friction disc to extend out through a second bearing; the friction disc is in a circular disc shape.

As a further scheme, a tray is further arranged on the back surface of the friction disc, the friction disc is in contact with the second shaft through the tray, and the tray is in axial linear sliding fit with the chuck body through a key and a key groove.

As a further scheme, the cylinder body assembly comprises a cylinder base, an inner cylinder sleeve and an outer cylinder sleeve, wherein the cylinder base is annular, a center hole is formed in the center of the cylinder base, the inner cylinder sleeve is arranged on the inner side of an end surface ring of the cylinder base, the outer cylinder sleeve is arranged on the outer side of the end surface ring of the cylinder base, and an air cavity is formed between the inner cylinder sleeve and the outer cylinder sleeve; the piston assembly comprises a piston and a sliding sleeve, the piston is annular, and the sliding sleeve is arranged on one side of the piston facing the cylinder seat and is inserted with the air cavity; the first bearing and the second bearing are ball bearings and are respectively arranged in the central hole of the cylinder seat and the inner side of the piston.

As a further scheme, the paper tube fixing head is an internal expansion type paper tube fixing head which is used for being in expansion fit with the inner wall of the paper tube.

As a further scheme, the inner expansion type paper tube fixing head comprises an inner expansion head, a top block, a compression spring and an outer expansion sleeve, more than two inclined plane grooves are formed in the periphery of the inner expansion head, the bottom surfaces of the inclined plane grooves are inclined planes and point along the axial direction of the inner expansion head, and the inner side of the top block is in sliding fit with the inclined plane grooves; the head that expands including the cover is established outward, and the cover that expands outward corresponds the kicking block and is equipped with the lateral wall through-hole, and the outer end of kicking block stretches out from the lateral wall through-hole, and compression spring sets up and expands between the head outward.

As a further scheme, the chuck body comprises an inner expansion sleeve and the paper tube fixing head, the inner expansion sleeve is sequentially provided with a connecting seat, a boss and the inner expansion head along the axis direction of the inner expansion sleeve, and the driving mechanism and the friction disc are arranged outside the boss.

As a further scheme, the friction disc is a rubber disc or a silicon disc, and the outer side of the rubber disc or the silicon disc is planar. The rubber disc or the silica gel disc has certain flexibility, has better adhesive force with the end face of the coiled base paper, and can not crush the edge of the base paper. Alternatively, the outer side of the friction disk may be flat and the outer side surface of the friction disk may be roughened. The rough surface concept is a surface body which can not cause the damage of the edge of the base paper when the driving mechanism drives the base paper to press the end surface of the base paper roll.

As a further proposal, a return spring is arranged between the friction disc and the paper tube fixing head or the chuck body, and the return spring applies a retreating acting force to the friction disc. When the driving mechanism is an air cylinder driving mechanism, air pressure is removed, the friction disc loses the power of forward propulsion and leaves the end face of the original paper roll under the action of the return spring, and the original paper roll is fixedly matched with the paper roll only through the paper roll fixing head.

The utility model has the advantages as follows:

(1) the base paper chuck is provided with the friction disc capable of moving axially, and the friction disc can move towards the direction of the paper cylinder fixing head under the action of the driving mechanism, so that when the base paper chuck is connected with the whole roll of the base paper roll, the base paper chuck can be in static friction fit with the end surface of the base paper roll in a larger area by virtue of the friction disc, and a larger torque is formed between the chuck and the base paper roll under the condition that the edge of the base paper is not damaged, so that the tension of the base paper discharged by the base paper roll can be reliably controlled in the using process;

(2) the friction disc of the base paper chuck can leave the end face of the base paper roll after the base paper roll is unreeled to a certain degree (the weight of the base paper roll is reduced to a certain degree), so that the original pressed base paper can be released, meanwhile, the rest base paper roll is only supported by the paper tube and the paper tube fixing heads, the edge of the base paper wound at the position close to the paper tube is not damaged, and therefore the base paper outside the paper tube can be fully released and used, and waste is reduced.

Drawings

Fig. 1 is an exploded schematic view of an embodiment of the present invention.

Fig. 2 is a schematic view of another angle-resolved structure of the present invention.

Fig. 3 is the exploded structure diagram of the middle cylinder assembly of the present invention.

Fig. 4 is another angle structure diagram of fig. 3.

Fig. 5 is a schematic view of an exploded structure of the middle piston assembly of the present invention.

Fig. 6 is another angle structure diagram of fig. 5.

Fig. 7 is the structure diagram of the utility model after assembly.

Fig. 8 is a schematic view of the structure of the present invention.

FIG. 9 is a schematic sectional view A-A of FIG. 8.

Fig. 10 is an enlarged schematic view of B in fig. 9.

In the figure: 1 is an inner expansion sleeve, 11 is a connecting seat, 12 is a boss, 13 is an inner expansion head, 14 is an inclined plane groove, 15 is a key groove, 16 is a connecting bolt, 17 is a first annular convex rib, 18 is a first limit screw, 2 is a top block, 21 is a sliding seat, 3 is a cylinder body component, 31 is a first bearing, 32 is a second limit screw, 33 is an air cavity, 34 is a cylinder seat, 35 is a central hole, 36 is an inner cylinder sleeve, 37 is an outer cylinder sleeve, 38 is an inner flange, 39 is an air hole, 4 is a compression spring, 5 is an outer expansion sleeve, 51 is a side wall through hole, 52 is an outward flange, 53 is an abdicating groove, 54 is a limit hole, 55 is an adjusting bolt, 6 is a piston component, 61 is a limit groove, 62 is a second bearing, 63 is a piston, 64 is a sliding sleeve, 65 is an outer annular positioning groove, 66 is an inner annular positioning groove, 7 is a tray, 71 is a key, 72 is a fixing screw, 73 is a spring hole, 74 is a clamping groove, 75 is a second annular convex rib, 8 is friction disk, 9 is reset spring and 10 is paper tube fixing head.

Detailed Description

The present invention will be further described with reference to the accompanying drawings and examples.

Referring to fig. 1 to 10, a base paper chuck comprises a chuck body, a paper tube fixing head 10 arranged at one end of the chuck body, a friction disc 8 and a driving mechanism for driving the friction disc 8 to move axially, wherein the friction disc 8 is located at the periphery of the paper tube fixing head 10 and is in axial sliding fit with the chuck body.

The paper tube fixing head 10 is an internal expansion type paper tube fixing head used for being in expansion fit with the inner wall of the paper tube.

The inner expansion type paper tube fixing head comprises an inner expansion head 13, a top block 2, a compression spring 4 and an outer expansion sleeve 5, three inclined plane grooves 14 are uniformly distributed on the periphery of the inner expansion head 13, the bottom surfaces of the inclined plane grooves 14 are inclined planes and point along the axial direction of the inner expansion head 13, and the inner side of the top block 2 is in linear sliding fit with the inclined plane grooves 14; the cover of 5 sets up including expanding outside the head 13, and the cover of 5 corresponding kicking blocks 2 of expanding outside is equipped with lateral wall through-hole 51, and the outer end of kicking blocks 2 stretches out from lateral wall through-hole 51, and compression spring 4 sets up at the cover of expanding outside between 5 and the interior head 13 that expands. The chuck body comprises an inner expansion sleeve 1 and a paper tube fixing head 10, the inner expansion sleeve 1 is sequentially provided with a connecting seat 11, a boss 12 and an inner expansion head 13 along the axis direction of the inner expansion sleeve 1, and the driving mechanism and the friction disc 8 are arranged outside the boss 12. The connecting base 11 is provided with a connecting bolt 16, and the connecting base 11 is connected with a brake disc (not shown in the figure) through the connecting bolt 16. The friction disc 8 is a rubber disc or a silicon disc, and the outer side of the rubber disc or the silicon disc is planar. The wall surface of the outer expansion sleeve 5 is provided with a limiting hole 54, the periphery of the inner expansion head 13 is provided with a first limiting screw 18, and the first limiting screw 18 extends into the limiting hole 54. The compression spring 4 is arranged between the outer expansion sleeve 5 and the inner expansion head 13 and at the center of the outer expansion sleeve 5 and the inner expansion head 13, the outer expansion sleeve 5 and the center of the inner expansion head 13 are connected through an adjusting bolt 55, and the pressure adjustment of the compression spring 4 and the axial movement stroke adjustment of the outer expansion sleeve 5 are realized by screwing the adjusting bolt 55. The bottom of the top block 2 is provided with a sliding seat 21, and the sliding seat 21 is in sliding fit with the groove bottom of the inclined plane groove 14.

The driving mechanism is arranged on the outer side of the chuck body and is in running fit with the chuck body; the driving mechanism is a cylinder driving mechanism.

The cylinder driving mechanism comprises a cylinder body assembly 3 and a piston assembly 6 which are mutually matched in a telescopic mode, the cylinder body assembly 3 and the piston assembly 6 are both annular and are sleeved outside the chuck body, a first bearing 31 is arranged between the cylinder body assembly 3 and the chuck body, the piston assembly 6 protrudes out of the cylinder body assembly 3, and the piston assembly 6 pushes the friction disc 8 to extend out through a second bearing 62.

And a tray 7 is further arranged on the back surface of the friction disc 8, the friction disc 8 is in contact with the second bearing 62 through the tray 7, and the tray 7 on the friction disc 8 is in axial linear sliding fit with the chuck body through a key 71 and a key groove 15. Wherein, the center of tray 7 is equipped with the trompil, is equipped with draw-in groove 74 on the trompil wall, and key 71 cooperates with draw-in groove 74 to pass through fixed screw and tray 7 fixed connection. The periphery of the tray 7 corresponding to the opening is provided with a plurality of spring holes 73, return springs 9 are welded or fixed in the spring holes 73 in other forms, and the return springs 9 apply retreating acting force to the friction discs 8.

The cylinder body assembly 3 comprises a cylinder seat 34, an inner cylinder sleeve 36 and an outer cylinder sleeve 37, wherein the cylinder seat 34 is annular, a center hole 35 is formed in the center of the cylinder seat 34, the inner cylinder sleeve 36 is arranged on the inner side of an end surface ring of the cylinder seat 34, the outer cylinder sleeve 37 is arranged on the outer side of the end surface ring of the cylinder seat 34, and an air cavity 33 is formed between the inner cylinder sleeve 36 and the outer cylinder sleeve 37; the piston assembly 6 comprises a piston 63 and a sliding sleeve 64, the piston 63 is annular, and the sliding sleeve 64 is arranged on one side of the piston 63 facing the cylinder seat 34 and is inserted with the air cavity 33; the first bearing 31 and the second bearing 62 are ball bearings, and the first bearing 31 and the second bearing 62 are respectively arranged in the central hole 35 of the cylinder block 34 and on the inner side of the piston 63. The cylinder base 34 is provided with an air hole 39 communicating with the air chamber 33.

The front end of the cylinder base 34 and the inner cylinder sleeve 36 are integrally formed, and the outer cylinder sleeve 37 is positioned outside the inner cylinder sleeve 36 and fixedly connected with the front end surface of the cylinder base 34 in a sealing manner. The inner wall of the cylinder base 34 is further provided with an inner flange 38, the first bearing 31 is arranged in the cylinder base 34, and the outer ring of the first bearing 31 abuts against the inner flange 38. The connecting seat 11 of the inner expansion sleeve 1 is provided with a first annular convex rib 17 at the matching position with the boss 12, and the first annular convex rib 17 is abutted to the inner ring of the first bearing 31. The inner ring and the outer ring of the first bearing 31 are in interference fit with the boss 12 and the inner wall of the central hole 35 respectively; the outer race of the second bearing 62 is in interference fit with the inner wall of the piston 63. The outer peripheral surface of the sliding sleeve 64 of the piston assembly 6 is provided with a limit groove 61 pointing to the axial direction, the outer cylinder sleeve 37 is provided with a second limit screw 32, and the second limit screw 32 extends into the limit groove 61, so that the piston assembly 6 is prevented from being separated from the cylinder assembly 3.

The back of the tray 7 is provided with a second annular rib 75 which is abutted against the inner ring of the second bearing 62. The boss 12 is provided with a key slot 15 corresponding to the key 71, and the key 71 is in linear sliding fit with the key slot 15; the root of the outer expansion sleeve 5 is provided with an outer flanging 52, and the outer flanging 52 is provided with a yielding groove 53 corresponding to the key 71. The return spring 9 abuts against the outward flange 52.

The working principle is as follows: the paper tube fixing heads 10 are inserted into two ends of the paper tube of the original paper roll, the paper tube fixing heads 10 are in tight fit with the inner wall of the paper tube in an expanding mode, however, the original paper roll is heavy in weight, if the paper tube fixing heads 10 are only matched with the paper tube, the torque is insufficient, and the original paper roll is difficult to be linked through a chuck, so that air can be supplied to the air cavity 33 of the air cylinder, the tray 7 and the friction disc 8 are driven to move outwards through the piston 63, the friction disc 8 protrudes out of the plane of the flanging 52 of the expanding sleeve 5, the outer side face of the friction disc 8 is in static friction fit with the end face of the original paper roll under the condition that the original paper is not worn, a larger torque is formed between the chuck and the original paper roll, the original paper roll is linked with the chuck, and the brake disc can be linked with the original paper roll so as to adjust the tension output by the original paper roll. When the original paper roll is unreeled to be close to the periphery of the friction disc or unreeled until the quality of the original paper roll is reduced to the torque of the paper cylinder fixing head and the paper cylinder so as to deal with the torque of the remaining original paper roll, the friction disc 8 retracts under the action of the reset spring 9 and leaves the end face of the original paper roll by removing the air pressure in the air cavity 33, so that the original paper which is in contact with the friction disc can be unreeled continuously, and the original paper can be fully utilized.

Claims

1. The utility model provides a body paper chuck, includes the chuck body, the one end of chuck body is equipped with fiber container fixed head (10), its characterized in that: the paper tube chuck further comprises a friction disc (8) and a driving mechanism for driving the friction disc (8) to move axially, wherein the friction disc (8) is located on the periphery of the paper tube fixing head (10) and is in axial sliding fit with the chuck body.

2. The base paper cartridge of claim 1, wherein: the driving mechanism is arranged on the outer side of the chuck body and is in running fit with the chuck body; the driving mechanism is an air cylinder driving mechanism, a lead screw transmission pair driving mechanism, a gear rack transmission pair driving mechanism or a wedge block ejection driving mechanism; the outer side of the friction disc (8) is planar.

3. The base paper cartridge of claim 2, wherein: the cylinder driving mechanism comprises a cylinder body assembly (3) and a piston assembly (6) which are mutually matched in a telescopic mode, the cylinder body assembly (3) and the piston assembly (6) are annular and sleeved outside the chuck body, a first bearing (31) is arranged between the cylinder body assembly (3) and the chuck body, the piston assembly (6) protrudes out of the cylinder body assembly (3), and the piston assembly (6) pushes the friction disc (8) to extend out through a second bearing (62); the friction disc (8) is in a circular disc shape.

4. The base paper cartridge of claim 3, wherein: the back of the friction disc (8) is also provided with a tray (7), the friction disc (8) is in contact with the second bearing (62) through the tray (7), and the tray (7) is in axial linear sliding fit with the chuck body through a key (71) and a key groove (15).

5. The base paper cartridge of claim 3, wherein: the cylinder body assembly (3) comprises a cylinder base (34), an inner cylinder sleeve (36) and an outer cylinder sleeve (37), the cylinder base (34) is annular, a center hole (35) is formed in the center of the cylinder base (34), the inner cylinder sleeve (36) is arranged on the inner side of an end face ring of the cylinder base (34), the outer cylinder sleeve (37) is arranged on the outer side of the end face ring of the cylinder base (34), and an air cavity (33) is formed between the inner cylinder sleeve (36) and the outer cylinder sleeve (37); the piston assembly (6) comprises a piston (63) and a sliding sleeve (64), the piston (63) is annular, and the sliding sleeve (64) is arranged on one side, facing the cylinder base (34), of the piston (63) and is inserted into the air cavity (33); the first bearing (31) and the second bearing (62) are both ball bearings, and the first bearing (31) and the second bearing (62) are respectively arranged in a central hole (35) of the cylinder base (34) and on the inner side of the piston (63).

6. The base paper cartridge according to claim 1 or 2, characterized in that: the paper tube fixing head (10) is an internal expansion type paper tube fixing head (10) which is used for being in expansion fit with the inner wall of the paper tube.

7. The base paper cartridge of claim 6, wherein: the inner expansion type paper tube fixing head (10) comprises an inner expansion head (13), a top block (2), a compression spring (4) and an outer expansion sleeve (5), wherein more than two inclined plane grooves (14) are formed in the periphery of the inner expansion head (13), the bottom surfaces of the inclined plane grooves (14) are inclined planes and point in the axial direction of the inner expansion head (13), and the inner side of the top block (2) is in sliding fit with the inclined plane grooves (14); the outer expansion sleeve (5) is sleeved on the inner expansion head (13), the outer expansion sleeve (5) is provided with a side wall through hole (51) corresponding to the ejector block (2), the outer end of the ejector block (2) extends out of the side wall through hole (51), and the compression spring (4) is arranged between the outer expansion sleeve (5) and the inner expansion head (13).

8. The base paper cartridge of claim 7, wherein: the chuck body comprises an inner expansion sleeve (1) and a paper tube fixing head (10), the inner expansion sleeve (1) is sequentially provided with a connecting seat (11), a boss (12) and an inner expansion head (13) along the axis direction of the inner expansion sleeve, and the driving mechanism and the friction disc (8) are arranged outside the boss (12).

9. The base paper cartridge of claim 1, wherein: the friction disc (8) is a rubber disc or a silica gel disc, and the outer side of the rubber disc or the silica gel disc is planar; alternatively, the outer side of the friction disk (8) is flat, and the outer side surface of the friction disk (8) is a rough surface.

10. The base paper cartridge according to claim 1 or 2, characterized in that: and a return spring (9) is arranged between the friction disc (8) and the paper tube fixing head (10) or the chuck body, and the return spring (9) applies a retreating acting force to the friction disc (8).