Paper feeding power adjusting mechanism

Abstract

The utility model relates to the technical field of printing and binding equipment, and particularly discloses a paper feeding power adjusting mechanism which comprises a main shaft, a large chain wheel transmission assembly and a lay gauge adjusting assembly, the lay gauge adjusting assembly comprises a tensioning sleeve, an adjusting shaft sleeve, a large chain wheel, a first bearing and a first paper conveying chain wheel, the adjusting shaft sleeve is sequentially sleeved with the large chain wheel, the first bearing and the first paper conveying chain wheel, the main shaft is sequentially sleeved with the tensioning sleeve and the adjusting shaft sleeve from bottom to top, the tensioning sleeve and the adjusting shaft sleeve are fixed through a plurality of first fasteners, and the tensioning sleeve and the main shaft are tightly held or loosened through an adjusting bolt. The large chain wheel and the first paper conveying chain wheel are fixedly connected with the adjusting shaft sleeve, the first paper conveying chain wheel is sleeved with a paper conveying chain, and a plurality of lay gauges are evenly distributed on the outer wall of the paper conveying chain. According to the lay gauge adjusting assembly, the tensioning sleeve and the main shaft are adjusted to be loosened through the adjusting bolt, so that the tensioning sleeve and the adjusting shaft sleeve rotate at the same time, and the lay gauge is adjusted to keep pages conveyed from two directions flush when the pages reach the front side of the paper conveying chain.

Description

TECHNICAL FIELD

[0001] The utility model belongs to printing and binding equipment technical field, specifically a kind of paper feeding power adjustment mechanism. BACKGROUND

[0002] When the page equipment is sleeved, two pages conveyed from different directions will cause misalignment of the sleeved pages due to the deviation of the blocking gauge on the chain during the paper feeding process under long-term use, and in this case, the whole machine cover needs to be disassembled and the paper feeding transmission structure needs to be adjusted, which is time-consuming and laborious, and seriously reduces the efficiency of page sleeving. UTILITY MODEL CONTENT

[0003] The utility model aims to provide a kind of paper feeding power adjustment mechanism, to solve the above-mentioned existing page equipment in the problem of misalignment of the sleeved pages caused by the deviation of the blocking gauge during the page sleeving.

[0004] To solve the above technical problems, the utility model provides a kind of paper feeding power adjustment mechanism, including main shaft, large sprocket transmission assembly and blocking gauge adjusting assembly which are sequentially arranged on the main shaft from top to bottom, the blocking gauge adjusting assembly includes tensioner, adjusting shaft sleeve and large sprocket, first bearing and first paper feeding sprocket which are sequentially sleeved on the adjusting shaft sleeve, the tensioner and adjusting shaft sleeve are sequentially sleeved on the main shaft from bottom to top, the tensioner is fixed with the adjusting shaft sleeve through a plurality of first fasteners, the tensioner is clamped or loosened with the main shaft through adjusting bolt, the large sprocket and the first paper feeding sprocket are fixedly connected with the adjusting shaft sleeve, the first paper feeding sprocket is sleeved with paper feeding chain, a plurality of blocking gauges are uniformly distributed on the outer wall of the paper feeding chain, the adjusting bolt is adjusted to loosen the tensioner and the main shaft, and the first paper feeding sprocket and the paper feeding chain are rotated to adjust the blocking gauge to block the pages.

[0005] Further, the large sprocket and the first paper feeding sprocket are respectively provided with anti-rotation keys between the adjusting shaft sleeve, and both are fixed with the adjusting shaft sleeve through second fasteners.

[0006] Further, the top inner wall of the adjusting shaft sleeve is provided with a limiting sleeve between the outer wall of the main shaft.

[0007] Further, the bottom of the tensioner is provided with a first limiting ring, a first limiting bolt is threaded on the first limiting ring, and the first limiting bolt is screwed on the bottom of the main shaft to prevent the tensioner from moving downward.

[0008] The two threaded holes are formed in the tightening sleeve, the first fasteners are two, and each of the first fasteners passes through a corresponding threaded hole and is fixed to the adjusting sleeve.

[0009] Further, the adjusting groove is formed in the tightening sleeve, and the adjusting bolt is used to adjust the width of the adjusting groove, so as to adjust the tightness or looseness of the tightening sleeve and the main shaft.

[0010] Further, the large sprocket transmission assembly comprises a bearing seat, a gear box, a first bevel gear, a transmission shaft, a second bevel gear and a small sprocket, the bearing seat is sleeved on the top of the main shaft, the upper cover of the gear box is provided with a cover body, the cover body and the gear box are connected through the third fastener, the bottom of the gear box is sleeved on the bearing seat, and the two are fixed through the fourth fastener, the first bevel gear is sleeved on the main shaft, the transmission shaft is transversely arranged in the gear box, one end of the transmission shaft is connected with the small sprocket and extends out of the gear box, the inner wall of the transmission shaft is connected with the inner wall of the gear box through the second bearing, and the second bevel gear is sleeved on the transmission shaft and is engaged with the first bevel gear.

[0011] Further, the top of the main shaft is provided with a second limiting ring and a second limiting bolt for limiting the disengagement of the first bevel gear.

[0012] Further, the paper conveying chain is driven by the sprocket transmission assembly, the sprocket transmission assembly comprises a motor and a second paper conveying sprocket, the motor is fixedly arranged on the equipment through a fixing frame, the second paper conveying sprocket is connected with the output shaft of the motor, and the second paper conveying sprocket and the first paper conveying sprocket are connected through the paper conveying chain.

[0013] The utility model discloses a beneficial effect: the utility model discloses the inside diameter of tightening sleeve is adjusted through adjusting bolt to adjust the looseness and the tightness between tightening sleeve and main shaft, in addition, the tightening sleeve and adjusting sleeve are fixed through first fastener, so that the tightening sleeve that can loosen with main shaft can rotate with adjusting sleeve, and the anti -rotation key between big sprocket and first paper conveying sprocket and adjusting sleeve can make big sprocket and first paper conveying sprocket rotate with adjusting sleeve, can make main shaft also rotate big sprocket and first paper conveying sprocket under not rotating, can drive paper conveying chain on first paper conveying sprocket and the stop gauge on paper conveying chain to rotate simultaneously to adjust the book page that transmits to the front side of paper conveying chain from two directions and keep flush, to solve the problem of bad quality or scrap of complete book caused by unevenly wrapped page, can also solve the problem that the whole machine cover and its parts need to be removed when adjusting the existing paper conveying transmission mechanism.

[0014] The anti-rotation key can make the large sprocket and the first paper transmission sprocket move together with the adjusting shaft sleeve, so that the first paper transmission sprocket cannot rotate with the adjusting shaft sleeve when the adjusting shaft sleeve rotates, and the position of the upper stop of the paper transmission chain cannot be adjusted to make the book pages flush.

[0015] The limiting sleeve between the inner wall of the top of the adjusting shaft sleeve and the outer wall of the main shaft can effectively prevent the adjusting shaft sleeve from moving up and contacting the large sprocket transmission assembly, and improve the stable operation of the printing and binding equipment.

[0016] The first fastener on the tensioner can effectively fix the bottom of the tensioner and the adjusting shaft sleeve, and limit the downward position of the two through the first limiting ring and the first limiting bolt, so that the tensioner and the adjusting shaft sleeve cannot fall off the main shaft and cause the equipment to malfunction.

[0017] The adjusting groove on the tensioner can make the tensioner change the width of the adjusting groove by turning the adjusting bolt, so that the tensioner can switch between the tight state and the loose state with the main shaft, and can effectively rotate together with the main shaft or separately, so as to improve the application range of the paper feeding power.

[0018] The second limiting ring on the top of the main shaft can effectively prevent the first bevel gear from disengaging from the main shaft, and can effectively improve the stability of the large sprocket transmission assembly. BRIEF DESCRIPTION OF DRAWINGS

[0019] In order to more clearly illustrate the technical scheme of the present application, the following will briefly introduce the drawings needed in the embodiment or prior art description. Obviously, the drawings in the following description are only some embodiments of the present application, and those skilled in the art can obtain other drawings according to these drawings without creative labor.

[0020] Figure 1 is a structure diagram of a paper feeding power adjusting mechanism in an embodiment of the present application;

[0021] Figure 2 is a sectional view of a paper feeding power adjusting mechanism in an embodiment of the present application;

[0022] Figure 3 is a partially disconnected top view of a paper feeding power adjusting mechanism in an embodiment of the present application;

[0023] Figure 4 is a structure diagram of a main shaft and a tensioner of a paper feeding power adjusting mechanism in an embodiment of the present application;

[0024] Figure 5This is a disconnected view of the main shaft and tensioning sleeve of a paper feeding power adjustment mechanism according to an embodiment of this utility model;

[0025] In the diagram: 1-Main shaft, 2-Large sprocket drive assembly, 3-Gate gauge adjustment assembly, 4-Limit sleeve, 5-First limit ring, 6-First limit bolt, 7-Second limit ring, 21-Bearing seat, 22-Gearbox, 23-First bevel gear, 24-Drive shaft, 25-Second bevel gear, 26-Small sprocket, 27-Cover, 31-Tensioning sleeve, 32-Adjusting bushing, 33-Large sprocket, 34-First bearing, 35-First paper conveyor sprocket, 36-Adjusting bolt, 37-Anti-rotation key, 38-Paper conveyor chain, 39-Gate gauge, 311-Threaded hole, 312-Adjusting groove. Detailed Implementation

[0026] The technical solutions in the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0027] The following will describe a specific embodiment of this utility model and its appendix. Figures 1-5 This document details a paper feeding power adjustment mechanism, comprising a main shaft 1, a large sprocket transmission assembly 2 and a stop gauge adjustment assembly 3 arranged sequentially from top to bottom on the main shaft 1. The stop gauge adjustment assembly 3 includes a tensioning sleeve 31, an adjusting bushing 32, and a large sprocket 33, a first bearing 34, and a first paper feed sprocket 35 sequentially mounted on the adjusting bushing 32. A paper feed power seat is mounted on the outer wall of the first bearing 34, and the paper feed power seat is fixedly mounted on the inner side plate of the frame of the printing and binding equipment. The tensioning sleeve 31 and the adjusting bushing 32 are sequentially mounted on the main shaft 1 from bottom to top. The tensioning sleeve 31 and the adjusting bushing 32... The bushing 32 is fixed by several first fasteners. The tensioning sleeve 31 is tightened or loosened with the main shaft 1 by the adjusting bolt 36. The large sprocket 33 and the first paper conveying sprocket 35 are fixedly connected to the adjusting bushing 32. A paper conveying chain 38 is fitted on the first paper conveying sprocket 35. Several stop gauges 39 are evenly distributed on the outer wall of the paper conveying chain 38. The stop gauges 39 are evenly distributed on the peripheral wall of the paper conveying chain 38. Adjusting the adjusting bolt 36 loosens the tensioning sleeve 31 and the main shaft 1. Rotating the adjusting bushing 32 drives the first paper conveying sprocket 35 and the paper conveying chain 38 to rotate, thereby adjusting the stop gauges 39 to stop the paper from passing through the pages.

[0028] The top of the main shaft 1 is provided with a second limiting ring 7 and a second limiting bolt for limiting the first bevel gear 23 to disengage. The setting of the second limiting ring 7 on the top of the main shaft 1 can effectively prevent the first bevel gear 23 from disengaging from the main shaft 1 and can effectively improve the stability of the operation of the large sprocket transmission assembly 2.

[0029] The large sprocket 33 and the first paper transmission sprocket 35 are respectively provided with anti-rotation keys 37 between the adjusting shaft sleeve 32, and both are fixed with the adjusting shaft sleeve 32 through the second fasteners. The arrangement of the anti-rotation keys 37 can make the large sprocket 33 and the first paper transmission sprocket 35 be linked with the adjusting shaft sleeve 32, so as to prevent the first paper transmission sprocket 35 from rotating with the adjusting shaft sleeve 32 when the adjusting shaft sleeve 32 rotates, and the problem that the first paper transmission sprocket 35 cannot adjust the position of the upper stop gauge 39 on the paper transmission chain 38 to make the book pages flush.

[0030] The adjusting shaft sleeve 32 is provided with a limiting sleeve 4 between the top inner wall and the outer wall of the main shaft 1. The arrangement of the limiting sleeve 4 between the top inner wall of the adjusting shaft sleeve 32 and the outer wall of the main shaft 1 can effectively prevent the adjusting shaft sleeve 32 from moving up and touching the large sprocket transmission assembly 2, and improve the stable operation of the printing and binding equipment.

[0031] The bottom of the tensioner sleeve 31 is provided with a first limiting ring 5, and the first limiting ring 5 is provided with a first limiting bolt 6. The first limiting bolt 6 is screwed on the bottom of the main shaft 1, and is used to prevent the tensioner sleeve 31 from moving down. The tensioner sleeve 31 is provided with two threaded holes 311, and the first fasteners are two and are respectively fixed with the adjusting shaft sleeve 32 after passing through each corresponding threaded hole 311. The arrangement of the first fasteners on the tensioner sleeve 31 can effectively fix the bottom of the tensioner sleeve 31 and the adjusting shaft sleeve 32, and limit the downward position of the two through the first limiting ring 5 and the first limiting bolt 6, so as to prevent the tensioner sleeve 31 and the adjusting shaft sleeve 32 from falling off the main shaft 1 and causing the equipment to be unable to operate normally.

[0032] The tensioner sleeve 31 is provided with an adjusting groove 312, and the adjusting bolt 36 is used to adjust the width of the adjusting groove 312, so as to adjust the tightness or looseness of the tensioner sleeve 31 and the main shaft 1. The arrangement of the adjusting groove 312 on the tensioner sleeve 31 can make the tensioner sleeve 31 change the width of the adjusting groove 312 by screwing the adjusting bolt 36, so as to switch the tightness and looseness of the tensioner sleeve 31 and the main shaft 1. The tensioner sleeve 31 can effectively rotate with the main shaft 1, or rotate alone to improve the application range of the paper feeding power.

[0033] The large chain wheel transmission assembly 2 comprises a bearing seat 21, a gear box 22, a first bevel gear 23, a transmission shaft 24, a second bevel gear 25 and a small chain wheel 26, the bearing seat 21 is sleeved on the top of the main shaft 1, the gear box 22 is of a square structure, and the outer wall of the gear box 22 is fixedly arranged on the inner side plate of the rack of the printing and binding equipment, the upper portion of the gear box 22 is provided with a cover body 27, the cover body 27 is connected with the gear box 22 through a third fastener, the bottom of the gear box 22 is sleeved on the bearing seat 21, and the two are fixed through a fourth fastener, the first bevel gear 23 is sleeved on the main shaft 1, the transmission shaft 24 is transversely arranged in the gear box 22, and one end of the transmission shaft 24 is connected with the small chain wheel 26 and extends out of the gear box 22, the inner end of the transmission shaft 24 is connected with the inner wall of the gear box 22 through a second bearing, the second bevel gear 25 is two and is spacedly sleeved on the transmission shaft 24, and the second bevel gear 25 is vertically arranged in the gear box 22 and is engaged with the two sides of the first bevel gear 23 respectively.

[0034] The paper conveying chain 38 is driven by the chain wheel transmission assembly, the chain wheel transmission assembly comprises a motor and a second paper conveying chain wheel, the motor is fixedly arranged on the equipment through a fixing frame, the second paper conveying chain wheel is connected with the output shaft of the motor, and the second paper conveying chain wheel and the first paper conveying chain wheel 35 are connected through the paper conveying chain 38.

[0035] The adjusting screw 36 is used for adjusting the inner diameter of the expansion sleeve 31, so that the loosening and tightness between the expansion sleeve 31 and the main shaft 1 is adjusted, and the expansion sleeve 31 and the adjusting shaft sleeve 32 are fixed through the first fastener, so that the expansion sleeve 31 can rotate with the adjusting shaft sleeve 32, the anti-rotation keys 37 between the large chain wheel 33, the first paper conveying chain wheel 35 and the adjusting shaft sleeve 32 can make the large chain wheel 33 and the first paper conveying chain wheel 35 rotate with the adjusting shaft sleeve 32, and the main shaft 1 can rotate the large chain wheel 33 and the first paper conveying chain wheel 35 without rotating, so that the paper conveying chain 38 on the first paper conveying chain wheel 35 and the blocking gauge 39 on the paper conveying chain 38 can be driven to rotate simultaneously, the pages transmitted to the front side of the paper conveying chain 38 from two directions can be kept in alignment, the problem that the quality of the bound books is poor or the bound books are scrapped due to misaligned pages is solved, and the problem that the whole machine cover and parts need to be removed for adjustment is solved.

[0036] The working process of the utility model is as follows:

[0037] When the printing and binding equipment is in normal operation, the small sprocket wheel 26 of the large sprocket wheel transmission assembly 2 rotates under the driving of the driving mechanism, so that the transmission shaft 24 drives the second bevel gear 25 to rotate simultaneously, and because the second bevel gear 25 is engaged with the first bevel gear 23, the vertical rotation force of the transmission shaft 24 is converted into a horizontal rotation force through the first bevel gear 23, the first bevel gear 23 rotates to drive the main shaft 1 to rotate, and the main shaft 1 drives the expansion sleeve 31, the adjusting shaft sleeve 32, the large sprocket wheel 33, the first bearing 34 and the first paper transmission sprocket wheel 35 on the adjusting shaft sleeve 32 to rotate simultaneously, and the chain wheel transmission mechanism connected with the large sprocket wheel 33 and the paper transmission chain 38 connected with the first paper transmission sprocket wheel 35 are simultaneously driven, and the stop rule 39 on the paper transmission chain 38 also rotates to keep the book pages transported from two directions to the front side of the paper transmission chain 38 in the same plane;

[0038] When the stop rule 39 on the paper transmission chain 38 deviates, the position of the stop rule 39 needs to be adjusted, the driving mechanism is closed, the main shaft 1 stops rotating, the adjusting screw 36 is screwed with a hexagonal wrench, the side walls on both sides of the adjusting groove 312 of the expansion sleeve 31 are away from each other, the groove width of the adjusting groove 312 is increased, the expansion sleeve 31 loosens the force of holding the main shaft 1 tightly, the adjusting shaft sleeve 32 is rotated to drive the expansion sleeve 31 fixed on the adjusting shaft sleeve 32 to rotate simultaneously, and the large sprocket wheel 33, the first bearing 34 and the first paper transmission sprocket wheel 35 on the adjusting shaft sleeve 32 are also driven to rotate simultaneously, the paper transmission chain 38 is driven simultaneously, the stop rule 39 on the paper transmission chain 38 is abutted with the two book pages transported from two directions to the front side of the paper transmission chain 38, so that the two book pages transported from two directions are kept in the same plane, so as to solve the problem of uneven book pages and poor quality or scrap of the finished book, and also solve the problem that the machine cover and parts need to be removed for adjustment.

[0039] The above only discloses a preferred embodiment of the utility model, of course, cannot limit the scope of the utility model, therefore, the equivalent changes made according to the utility model claim still belong to the scope covered by the utility model.

Claims

1. A paper feed power adjustment mechanism, characterized in that, The utility model relates to a book page blocking device, including main shaft (1), big sprocket drive assembly (2) and blocking gauge adjusting assembly (3) are arranged in sequence from top to bottom on main shaft (1), blocking gauge adjusting assembly (3) includes tensioner (31), adjusting shaft sleeve (32) and big sprocket (33), first bearing (34) and first paper transmission sprocket (35) are sequentially sleeved on adjusting shaft sleeve (32), tensioner (31) and adjusting shaft sleeve (32) are sequentially sleeved on main shaft (1) from bottom to top, tensioner (31) is fixed with adjusting shaft sleeve (32) through a plurality of first fasteners, tensioner (31) is gripped or loosened with main shaft (1) through adjusting bolt (36), big sprocket (33) and first paper transmission sprocket (35) are fixedly connected with adjusting shaft sleeve (32), first paper transmission sprocket (35) is sleeved with paper transmission chain (38), a plurality of blocking gauges (39) are evenly distributed on the outer wall of paper transmission chain (38), adjusting adjusting bolt (36) is so as to make tensioner (31) and main shaft (1) loosen, and rotating adjusting shaft sleeve (32) drives first paper transmission sprocket (35) and paper transmission chain (38) to rotate to adjust the blocking gauge (39) and carry out paper blocking to book page.

2. A paper feed power adjustment mechanism according to claim 1, wherein The big sprocket (33) and the first paper transmission sprocket (35) are respectively provided with an anti-rotation key (37) between the adjusting shaft sleeve (32), and both are fixed with the adjusting shaft sleeve (32) through a second fastener.

3. The paper feed power adjustment mechanism according to claim 1, wherein The top inner wall of the adjusting shaft sleeve (32) and the outer wall of the main shaft (1) are provided with a limiting sleeve (4).

4. The paper feed power adjustment mechanism according to claim 1, wherein The bottom of the tensioner (31) is provided with a first limiting ring (5), a first limiting bolt (6) is penetrated in the first limiting ring (5), and the first limiting bolt (6) is screwed in the bottom of the main shaft (1) to prevent the tensioner (31) from moving downward. Two threaded holes (311) are formed in the tensioner (31), the first fasteners are two, and each threaded hole (311) is penetrated and fixed with the adjusting shaft sleeve (32).

5. The paper feed power adjustment mechanism of claim 1, wherein An adjusting groove (312) is formed in the tensioner (31), and the adjusting bolt (36) is used to adjust the width of the adjusting groove (312) to adjust the gripping or loosening of the tensioner (31) and the main shaft (1).

6. The paper feed power adjustment mechanism of claim 1, wherein The large sprocket transmission assembly (2) comprises a bearing seat (21), a gear box (22), a first bevel gear (23), a transmission shaft (24), a second bevel gear (25) and a small sprocket (26), the bearing seat (21) is sleeved on the top of the main shaft (1), the upper part of the gear box (22) is provided with a cover (27), the cover (27) is connected with the gear box (22) through a third fastener, the bottom of the gear box (22) is sleeved on the bearing seat (21), and the two are fixed through a fourth fastener, the first bevel gear (23) is sleeved on the main shaft (1), the transmission shaft (24) is transversely arranged in the gear box (22), one end of the transmission shaft (24) is connected with the small sprocket (26) and extends out of the gear box (22), the inner end of the transmission shaft (24) is connected with the inner wall of the gear box (22) through a second bearing, and the second bevel gear (25) is sleeved on the transmission shaft (24) and is engaged with the first bevel gear (23).

7. A paper feed power adjustment mechanism according to claim 6, wherein The top of the main shaft (1) is provided with a second limiting ring (7) and a second limiting bolt for limiting the disengagement of the first bevel gear (23).

8. The paper feed power adjustment mechanism of claim 1, wherein, The paper conveying chain (38) is driven by a chain wheel transmission assembly, the chain wheel transmission assembly comprises a motor and a second paper conveying sprocket, the motor is fixedly arranged on the equipment through a fixing frame, the second paper conveying sprocket is connected with the output shaft of the motor, and the second paper conveying sprocket and the first paper conveying sprocket (35) are connected through the paper conveying chain (38).

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