WO2014079359A1

WO2014079359A1 - Backing paper conveyance device for printing machine

Info

Publication number: WO2014079359A1
Application number: PCT/CN2013/087501
Authority: WO
Inventors: 黄锡忠
Original assignee: Huang Xizhong
Priority date: 2012-11-22
Filing date: 2013-11-20
Publication date: 2014-05-30
Also published as: CN102976134A; CN102976134B

Abstract

Disclosed is a backing paper conveyance device for a printing machine, comprising an unreeling device and a reeling device; the reeling device is in power connection with the unreeling device via the backing paper; the unreeling device comprises an unreeling shaft (70), and a resistance clutch (50) fixedly disposed on a machine frame; the resistance clutch (50) generates uniform rotation resistance for the unreeling shaft (70); the reeling device comprises a reeling shaft (10), and a power clutch (302) in power connection on the machine frame; the power clutch (302) provides backing paper reeling power for the reeling shaft (10); the resistance clutch (50) and the power clutch (302) are both provided with a clutch adjustment arm; and each clutch adjustment arm consists of a spring sleeved on an adjustment shaft and an adjustment wheel rotatably disposed on the adjustment shaft. The device can effectively adjust the reeling and unreeling force so as to generate uniformity for backing paper reeling and unreeling, and prevent the printing process from being affected by the tearing caused by excessive unreeling/reeling or too great reeling force.

Description

Printing machine pad paper conveying device

The invention relates to a printing machine auxiliary material conveying device, in particular to a printing machine pad paper conveying device. Background technique

At present, the printing machine is widely used in the printing and dyeing process of the garment industry, so that the clothing fabrics and the like can be printed according to the design graphic, and the product is submitted for competitiveness. In the production process of the thermal transfer printing machine, the pad winding device of the thermal transfer printing machine has certain processing and installation errors in the recycling process due to the installation level of the reel and the pre-rolling guide roller. Or the vibration of the processing environment often causes the reel to receive different tension during the recycling process, causing the paper to break or the winding of the pad on the reel to be shifted to the left or to the right, so that the pad after recycling is not conducive to Re-use, on the other hand, after the reel is recycled, it is necessary to separate the reel and the reeling power, and evacuate the reel that recovers the pad. However, there is no good device in the prior art to facilitate evacuation and recycling. In the unwinding process, due to the processing and installation errors of the mounting level of the reel and the front roller of the reel, or the vibration of the processing environment, the reel is often uneven during the unwinding process. The tension causes the mat to break or over-wind, which is not conducive to the printing of the upper fabric, which reduces the production efficiency. Summary of the invention

The technical problem to be solved by the embodiments of the present invention is to provide a printing machine pad paper conveying device. The printing machine can adjust the winding force when winding or unwinding the pad, so that the pad is evenly stressed. In order to solve the above technical problem, an embodiment of the present invention provides a printing machine pad paper conveying device, comprising a unwinding device and a winding device, wherein the winding device is dynamically connected to the unwinding device by a pad; The winding device includes a take-up reel and a resistance clutch fixedly disposed on the frame, the resistance clutch generates a rolling resistance for the reel; the winding device includes a reel and a power clutch connected to the frame The power clutch provides the reel with power to wind the pad; the resistance clutch and the power clutch each have a clutch adjustment arm, and the clutch adjustment arm is spring-mounted and screwed on the adjustment shaft The adjusting wheel of the adjusting shaft is composed.

Further, one end of the reel is provided with a power gear that cooperates with a resistance gear provided by the resistance clutch.

Further, the winding device further includes a transmission shaft mounted on the frame, the transmission shaft and the power clutch are fixedly disposed on the same axis, and one end of the winding reel is fixedly provided with a driven gear; One end of the transmission shaft is provided with a transmission gear that meshes with the driven gear, the power clutch is movably disposed with a power sprocket, and the power shaft is press-fitted with the power sprocket to drive the transmission shaft: a reel Turn.

Further, the winding device further includes an auxiliary positioning gear disposed on the frame and meshing with a driven gear of the winding reel.

Further, the winding reel is disposed on the frame by a pressing device, and the pressing device includes an upper shaft seat and a lower shaft seat hinged at one end, the upper and lower shaft seats have an inner cavity, and the lower shaft seat inner cavity Having two pressure rollers that project the winding shaft with a convex upper cavity surface; the upper shaft housing inner cavity has a positioning pressure roller protruding from the lower cavity surface.

Further, the other end of the lower shaft seat is hingedly provided with a screw, the screw tail end is provided with a rotary cover; the upper end surface of the upper shaft seat has a concave notch on the upper end surface, and the screw can be placed The upper and lower shaft seats are screwed and fixed by the rotary cover. Further, the unwinding reel is fixedly mounted on the bracket by a shaft seat, and the shaft seat has an arcuate groove for supporting the unwinding reel.

Further, the shaft seat is provided with a locking piece for locking the discharge reel in the arcuate groove, the locking piece is slidably connected with a through groove provided on the shaft seat, and the locking piece has a chute The chute is screwed onto the through slot by a fixing cover having a screw.

Further, the unwinding reel and the reel are respectively provided with bearing bushes with flanges at both ends of the power gear and the driven gear, and the reel is axially fixed by the positioning boss provided on the bracket. .

Further, the winding reel is provided with an air cushion, and the air cushion has a gas chamber that connects an air inlet on the winding reel.

The embodiment of the invention has the following beneficial effects: The power clutch and the resistance clutch are respectively arranged to cooperate with the reel and the reel, so that the force of winding and unwinding can be effectively adjusted, so that the reeling and unwinding force of the pad is uniform. , to avoid excessive unwinding or winding, and the tearing caused by excessive winding force affects the printing process. DRAWINGS

Figure 1 is a schematic structural view of the right portion of the winding device;

Figure 2 is a partial structural view showing a portion A shown in Figure 1;

Figure 3 is a schematic structural view of the left part of the winding device;

Figure 4 is a schematic structural view of a positioning boss;

Figure 5 is a schematic structural view of the right portion of the unwinding device;

Figure 6 is a schematic view showing the structure of the left portion of the unwinding device. DETAILED DESCRIPTION OF THE INVENTION In order to make the objects, technical solutions and advantages of the present invention more comprehensible, the present invention will be further described in detail with reference to the accompanying drawings.

Referring to Figures 1, 2 and 3, the structure of the winding device of the present invention is shown.

In order to make the take-up reel easy to disassemble, the embodiment of the present invention provides a winding device having a pressing device 20 and a transmission shaft 30 that cooperate with the winding reel 10, and one end of the reel 10, that is, the right end is fixed. The driven gear 101 is disposed; and correspondingly, one end of the transmission shaft 30 is provided with a transmission gear 301 meshing with the lower end of the driven gear 101, and the other end of the transmission shaft 30 is provided with a power clutch 302, and the power clutch 302 is movable. The power sprocket 303 is disposed, and the movable sprocket 303 is disposed on the rotating shaft 30, but the rotational power thereof is disengaged from the rotating shaft 30, and the rotation of the rotating shaft 30 is matched by the power sprocket 303 and the power clutch 302. Rotating under the driving, and rotating the power to the reel 10, the moving sprocket 303 is connected with the power mechanism in the frame through a chain, and the rotating shaft 30 is rotatably disposed on the frame.

In order to control the rotation of the take-up reel 10 at any time, the power clutch 302 that drives the rotating shaft 30 and the power sprocket 303 must be easily disengaged or pressed. A clutch adjustment arm is provided on the power clutch 302. The spring 305 of the adjusting shaft and the adjusting wheel 306 screwed on the adjusting shaft constitute a fixed connection on the same axis as the rotating shaft, and the adjusting wheel 306 can be rotated to generate the axial movement of the power clutch 302. The detachment or pressing action of the power sprocket 303.

Further, the reel 10 is further detached from the frame, and the reel 10 is detachably fixed to the frame by the press shaft unit 20.

FIG. 2 is a schematic structural view of a portion A in FIG.

The pressing shaft device 20 includes an upper shaft seat 201 and a lower shaft seat 202 which are hinged at one end, and the upper shaft seat 201 and the lower shaft The seats 202 each have an inner cavity. On the inner cavity of the lower shaft seat 202, there are two pressure rollers 203 protruding from the upper cavity surface. The two pressure rollers 203 bear the reel, and the corresponding upper shaft seat 201 has a lower cavity surface. A positioning cam 204 is provided, and the three positioning cams are rotatably connected with the upper and lower shaft seats. When the upper and lower shaft seats are engaged, the three positioning cams cooperate to fix the winding reel 10 to the machine. On the shelf.

More preferably, the upper inner cavity surface of the lower axle housing 202 is provided with a concave semi-circular arc surface corresponding to the radius of the reel 10 in the middle of the two pressure rollers 203, correspondingly, the inner cavity surface of the upper axle housing 201 A concave semi-circular surface 205 corresponding to the radius of the take-up reel 10 is disposed at the pressure roller 204.

In order to fix the engaged upper axle housing 201 and the lower axle housing 202, a screw 206 is hingedly disposed on the other end of the lower axle housing 202 for the hinged end, and a rotatable rotary cover 207 is disposed on the tail end of the screw 206. The upper shaft base 201 is provided with a concave notch corresponding to the other end of the hinge so that the screw 206 can be placed therein and rotated by the rotary cover 207 to fix the upper shaft base 201 and the lower shaft base 202.

In order to stabilize the connection of the driven gear 101 of the engaged reel to the transmission gear 301, the embodiment also provides an auxiliary positioning gear 307 that meshes with the driven gear 101.

Referring to Figure 3, a schematic view of the structure of the left end portion of the take-up reel of the present invention is shown.

The finalizing device 20 is also provided at the left end portion and the right end portion of the winding reel. In the embodiment, the bearing pad 102 is disposed on the left end of the reel, and the positioning boss 102 is disposed on the frame at the left end of the reel, and the positioning boss 103 is correspondingly disposed on the frame to make the bearing pad 102 Cooperating with the boss 103, the take-up reel 10 is fixed in the axial direction.

4 is a structural schematic view of the positioning boss 103. More preferably, in order to make the bearing 102 and the positioning boss 103 more closely match, the positioning boss 103 is connected by a sleeve 106 and a spring 108 with the spring 108. Combined.

In order to make the winding tension of the winding paper of the winding reel 10 hook and have a certain flexibility, an air cushion 104 is also arranged on the winding reel, as shown in FIG. 1 , and a connecting air cushion 104 is further disposed on the winding reel. of The air inlet 105 of the air chamber. 5 and 6 are schematic views showing the structure of the unwinding device of the present invention. In this embodiment, the unwinding device includes a resistance clutch 50, a resistance gear 60, and a reel 70, wherein the resistance clutch 50 is fixedly disposed on the bracket, and the resistance gear 60 is disposed on the resistance clutch 50, and is in a rotational connection relationship, the resistance gear The friction disc 601 has a friction fit with the resistance clutch 50. The friction disc 601 and the resistance clutch 50 generate a resistance fit through the friction plate, and the rear end of the resistance clutch 50 is further provided with a clutch adjustment arm 501, and the clutch adjustment arm 501 is set by The spring 503 on the adjustment shaft 502 is composed of an adjustment wheel 504 that is screwed to the adjustment shaft 502. The adjustment wheel 504 is rotated to engage the resistance clutch 50 with the resistance gear 60 to provide a certain resistance to the resistance gear 60. The reel 70 is provided with a power gear 701 that meshes with the resistance gear 60. By adjusting the adjustment wheel 504 of the resistance clutch 50, the rotation of the reel 70 is subjected to a certain resistance. The reel 70 is fixedly mounted to the bracket by a shaft base 80 having an arcuate recess 801 of the support 7|retracting spool 70, the radius of which corresponds to the outer diameter of the joint of the reel 70 to which it is fitted. A locking piece 802 is disposed on a side of the reel 70 of the shaft seat 80. Correspondingly, the shaft seat 80 is provided with a through slot 803 for mounting the locking piece 802. The locking piece also has a sliding slot 804, as shown in FIG. The slot 804 is rotated and fixed on the slot 803 by a fixing cover 806 provided with a screw 805. When the spool 70 is fixed, the locking piece 802 is slid out from the slot 803, and the fixing cover 806 is rotated. The locking piece is fixed. In order to fix the reel 70 in the axial direction, the reel 70 is provided at the other end of the mounting power gear 701, that is, the left end of the embodiment is provided with a bearing bush 702 having a flange 703 at both ends, in this embodiment, convex The edge 703 is formed by partially recessing the bearing bush 702, and the positioning boss 704 is correspondingly disposed on the axle seat 50.

The above description is only a preferred embodiment of the present invention, and the scope of the present invention is not limited thereto, and the equivalent changes made by the claims of the present invention are still within the scope of the present invention.

Claims

Rights request

1. A paper pad conveying device for a printing machine, characterized in that it includes an unwinding device and a rewinding device, and the rewinding device is dynamically connected to the unwinding device through a paper pad; the unwinding device includes an unwinding reel and a rewinding device. A resistance clutch is fixedly provided on the frame, and the resistance clutch generates uniform rotational resistance for the unwinding shaft; the winding device includes a winding shaft, and a power clutch that is dynamically connected to the frame, and the power clutch is the The winding shaft provides the power to wind up the pad paper; the resistance clutch and the power clutch both have a clutch adjustment arm, and the clutch adjustment arm is composed of a spring set on the adjustment shaft and an adjustment screw mounted on the adjustment shaft. composed of wheels.

2. The printing machine pad paper conveying device according to claim 1, characterized in that one end of the unwinding shaft is provided with a power gear that matches the resistance gear provided by the resistance clutch.

3. The printing machine backing paper conveying device according to claim 1, characterized in that the rewinding device further includes a transmission shaft installed on the frame, and the transmission shaft and the power clutch are on the same axis. A fixed arrangement on the winding shaft, one end of the rewinding shaft is fixedly provided with a driven gear; one end of the transmission shaft is provided with a transmission gear meshing with the driven gear, the power clutch is movable with a power sprocket, and through the power The clutch and the power sprocket are pressed together to drive the transmission shaft and the winding shaft to rotate.

4. The printing machine backing paper conveying device according to claim 3, characterized in that the rewinding device further includes an auxiliary positioning gear arranged on the frame and meshed with the driven gear of the rewinding shaft.

5. The printing machine pad paper conveying device according to claim 1, characterized in that the winding shaft is arranged on the frame through a pressing device, and the pressing device includes an upper shaft seat and a lower shaft seat hinged at one end, so As mentioned above, The lower axle seat has an inner cavity, and the inner cavity of the lower axle seat has two pressure wheels protruding from the upper cavity surface to carry the winding shaft; the inner cavity of the upper axle seat has a positioning pressure protruding from the lower cavity surface. wheel.

6. The printing machine pad paper conveying device according to claim 5, characterized in that a screw is hingedly provided on the other end of the lower shaft seat, and a rotating cover is provided on the tail end of the screw; and the other end of the upper shaft seat is provided with a screw. There is a concave notch on the upper end surface of one end, and the screw can be placed inside it, and the upper and lower axle seats are rotated and pressed together by the rotating cover.

7. The printing machine pad paper conveying device according to claim 1, characterized in that the unwinding reel is fixedly mounted on the bracket through an axle seat, and the axle seat has an arc-shaped groove that supports the unwinding reel.

8. The printing machine pad paper conveying device according to claim 7, characterized in that the shaft seat is provided with a locking piece for locking the unwinding shaft in the arc-shaped groove, and the locking piece and the shaft The through-slot provided on the seat is slidably connected, and the locking piece has a chute. The chute rotates the locking piece onto the through-slot through a fixed cover with a screw.

9. The printing machine pad paper conveying device according to claim 1, characterized in that the unwinding shaft and the rewinding shaft are respectively provided with bearing bushes with flanges at both ends at the other ends where the power gear and the driven gear are arranged. And cooperate with the positioning boss provided on the bracket to fix the winding shaft axially.

10. The printing machine pad paper conveying device according to claim 1, characterized in that the rewinding shaft is equipped with an air cushion, and the air cushion has an air chamber connected to the inflation port on the rewinding shaft.