An assembly mechanism for a variable width printing roller

Abstract

The utility model relates to the technical field of printing, particularly relate to a kind of assembly mechanism of variable width printing roller, assembly mechanism includes two bearing seats, two supports and printing roller, and the both ends of printing roller are rotated in bearing seat;Groove is provided at the top of support, and the bottom end of bearing seat is fixed with the connecting block of being inserted with groove;The inner wall of groove is provided with sliding slot, and the inner wall of sliding slot away from groove is communicated with the surface of support by through-hole, and connecting block is provided with fixed groove;Assembly mechanism further includes locking block sliding in sliding slot, and locking block is fixed with the extension rod passing through through-hole;Spring is sleeved on extension rod;Its simple structure can quickly remove and install bearing seat, improve the maintenance efficiency of printing roller.

Description

Technical Field

[0001] This utility model relates to the technical field of printing, and in particular to an assembly mechanism for a variable width printing roller. Background Technology

[0002] In industries such as packaging printing, flexible film printing, and label manufacturing, variable width printing rollers have become mainstream equipment components to adapt to changes in the width of the substrate in different orders. These printing rollers, by splitting the roller body into fixed and movable sections, can adjust the effective printing width without replacing the entire roller body, significantly reducing the spare parts inventory cost of traditional fixed width printing rollers. They are now widely used in most flexible production lines.

[0003] The existing assembly mechanism for variable width printing rollers has serious defects in the disassembly and assembly of the bearing housing and the printing roller. For example, the printing roller is supported by the bearing housings at both ends. Most of the existing bearing housings are directly bolted to the printing press bracket. Although this can provide a fixed support, the support housing and the printing roller need to be frequently disassembled and assembled during daily maintenance, width adjustment or roller replacement, which brings inconvenience to maintenance. Utility Model Content

[0004] To solve the above-mentioned technical problems, this utility model provides an assembly mechanism for a variable width printing roller, which has a simple structure and can quickly remove and install the bearing seat, thereby improving the maintenance efficiency of the printing roller.

[0005] The present invention discloses an assembly mechanism for a variable width printing roller. The assembly mechanism includes two bearing seats, two brackets, and a printing roller. Both ends of the printing roller rotate on the bearing seats. A groove is provided on the top of the bracket, and a connecting block that inserts into the groove is fixed at the bottom of the bearing seat. The inner wall of the groove is provided with a sliding groove, and the inner wall of the sliding groove away from the groove is connected to the surface of the bracket through a through hole. The connecting block is provided with a fixing groove. The assembly mechanism also includes a locking block that slides in the slide groove, and an extension rod that passes through the through hole is fixed to the locking block; a spring is fitted on the extension rod, and the two ends of the spring contact the locking block and the inner wall of the slide groove, respectively. When the two ends of the locking block are respectively in the sliding groove and the fixing groove, the position of the connecting block and the bracket is fixed. The extension rod has a slotted hole at one end outside the bracket. The bracket is fixed with a fixed shaft, and the middle part of the power rod is rotatably connected to the fixed shaft. One end of the power rod is fixed with a push shaft that passes through the slotted hole. It also includes a connecting arm, the two ends of which are rotatably connected to the other ends of the two power rods.

[0006] As a preferred embodiment of this utility model, the connecting arm is a telescopic structure.

[0007] As a preferred embodiment of this utility model, the extension rod is fixed with a baffle. When the two ends of the locking block are respectively in the sliding groove and the fixing groove, the baffle abuts against the outer wall of the bracket. The locking block has a curved or beveled surface at one end that extends into the fixing groove.

[0008] As a preferred embodiment of this utility model, the bottom end of the connecting block is an arc surface or an inclined surface.

[0009] As a preferred embodiment of this utility model, the bracket is a telescopic structure.

[0010] As a preferred embodiment of this utility model, a gripping part is provided on the connecting arm.

[0011] As a preferred embodiment of this utility model, a torsion spring for resetting the position of the power rod is fitted on the fixed shaft.

[0012] As a preferred embodiment of this utility model, the power rod is fixed with a support rod.

[0013] As a preferred embodiment of this utility model Compared with the prior art, the beneficial effects of this utility model are as follows: This device can achieve simultaneous unlocking on both sides. Through the parallelogram linkage structure formed by the connecting arm and two power rods, and with the torsion spring on the fixed shaft, the operator can drive the power rods on both sides to rotate synchronously by holding the ergonomic grip, so that the push shaft slides in the extension rod strip hole and pulls the locking block away from the fixed groove. There is no need to operate the structure on both sides separately, and the disassembly process is smooth and efficient. During bearing housing installation, the connecting block can automatically press the locking block to complete the automatic fixing of the connecting block. The bottom end of the connecting block and the arc or inclined surface of the locking block extending into the fixing groove are adapted to each other. When the connecting block is inserted into the bracket groove, it can automatically press the locking block to move towards the slide groove and compress the spring. After the fixing groove and the slide groove are aligned, the spring can push the locking block into the fixing groove. At the same time, the baffle on the extension rod abuts against the outer wall of the bracket to prevent the locking block from moving excessively. The connecting block and the bracket can be stably fixed without manual adjustment of the locking block position. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 yes Figure 1 Enlarged view of part A in the middle; Figure 3 This is a cross-sectional view of the present invention; Figure 4 yes Figure 3 Enlarged view of part B in the middle; The following are labels in the attached diagram: 1. Bearing housing; 2. Bracket; 3. Printing roller; 4. Groove; 5. Connecting block; 6. Slide groove; 7. Through hole; 8. Fixing groove; 9. Locking block; 10. Extension rod; 11. Spring; 12. Strip hole; 13. Fixed shaft; 14. Power rod; 15. Push shaft; 16. Connecting arm; 17. Baffle; 18. Arc surface; 19. Torsion spring; 20. Support rod. Detailed Implementation

[0015] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0016] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art can make similar extensions without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0017] Secondly, the term "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it a single or selective embodiment that excludes other embodiments.

[0018] Example: Reference Figures 1-4 The present invention discloses an assembly mechanism for a variable width printing roller. The assembly mechanism includes two bearing seats 1, two supports 2, and a printing roller 3. The two ends (i.e., the central shaft) of the printing roller 3 rotate on the bearing seats 1. A groove 4 is provided on the top of the support 2, and a connecting block 5 that is inserted into the groove 4 is fixed at the bottom of the bearing seat 1. More specifically, the groove 4 is arranged in a vertical direction and is rectangular. The connecting block 5 is slidably connected to the groove 4. The inner wall of the groove 4 is provided with a sliding groove 6. The inner wall of the sliding groove 6 away from the groove 4 is connected to the surface of the bracket 2 through a through hole 7. The connecting block 5 is provided with a fixing groove 8. More specifically, as shown in the figure... Figure 4 As shown, the slide groove 6 and the through hole 7 form a T-shape, which is to prevent the locking block 9 from disengaging from the slide groove 6; Reference Figure 2 and Figure 4 The assembly mechanism also includes a locking block 9 that slides in the slide groove 6. The locking block 9 is fixed with an extension rod 10 that passes through the through hole 7. A spring 11 is fitted on the extension rod 10. The two ends of the spring 11 contact the locking block 9 and the inner wall of the slide groove 6, respectively. Since the position of the bracket 2 is fixed, the locking block 9 tends to move towards the fixed groove 8 under the elastic force of the spring 11. Reference Figure 4When the two ends of the locking block 9 are respectively in the sliding groove 6 and the fixing groove 8, the connecting block 5 and the bracket 2 are fixed in position; The extension rod 10 has a strip hole 12 at one end outside the bracket 2. More specifically, the strip hole 12 is vertically oriented. The bracket 2 is fixed with a fixed shaft 13. The middle part of the power rod 14 is rotatably connected to the fixed shaft 13. One end of the power rod 14 is fixed with a push shaft 15 that passes through the strip hole 12. It also includes a connecting arm 16, with both ends of the connecting arm 16 being rotatably connected to the other ends of the two power rods 14 respectively; The specific operation process of this device is as follows: In the assembled state, the two ends of the printing roller 3 are rotated and supported in the bearing seat 1. The connecting block 5 at the bottom of the bearing seat 1 is inserted into the groove 4 at the top of the bracket 2. The bottom surface of the bearing seat 1 contacts the top surface of the bracket 2. Under the action of the spring 11, the locking block 9 in the slide groove 6 is positioned in the slide groove 6 at one end and the other end is inserted into the fixing groove 8 of the connecting block 5, so that the connecting block 5 is firmly fixed to the bracket 2, thereby ensuring the stable operation of the printing roller 3. When the printing roller 3 needs to be disassembled, since the connecting arm 16, the fixed shaft 13 and the two power rods 14 form a parallelogram linkage structure, by holding the connecting arm 16 and driving the two power rods 14 to rotate synchronously around the fixed shaft 13, the push shaft 15 at one end of the power rod 14 will slide in the strip hole 12 of the extension rod 10, thereby pulling the extension rod 10 to drive the locking block 9 to move along the slide groove 6 and compress the spring 11, so that the locking block 9 is completely disengaged from the fixed groove 8 of the connecting block 5. At this time, the connecting block 5 and the bearing seat 1 fixed thereto can be directly pulled out to complete the disassembly of the printing roller 3. After disassembly, the connecting arm 16 is released, and under the elastic force of the spring 11, each component gradually returns to its initial position.

[0019] As a preferred embodiment of this utility model, refer to Figure 1 The connecting arm 16 is a telescopic structure; more specifically, the connecting arm 16 is a sleeve-type telescopic structure. When the distance between the two supports 2 changes, the overall length of the connecting arm 16 can be adaptively changed, so that the parallelogram linkage structure always remains usable.

[0020] As a preferred embodiment of this utility model, refer to Figure 2 and Figure 4 The extension rod 10 is fixed with a baffle 17. When the two ends of the locking block 9 are respectively in the slide groove 6 and the fixing groove 8, the baffle 17 abuts against the outer wall of the bracket 2. The locking block 9 extends into the fixing groove 8, and one end of it has an arc surface 18 or a bevel. More specifically, the baffle 17 can abut against the outer wall of the bracket 2 when the locking block 9 is in the sliding groove 6 and the fixed groove 8, effectively restricting the locking block 9 from moving into the fixed groove 8 due to excessive elastic force of the spring 11; The arc surface 18 or inclined surface design of the locking block 9 can automatically push the locking block 9 to the outer slide groove 6 through the guiding action of the inclined surface or arc surface 18 during the process of inserting the connecting block 5 into the groove 4. There is no need to manually operate the extension rod 10 in advance to adjust the position of the locking block 9, which simplifies the assembly steps and makes the insertion of the connecting block 5 and the automatic reset of the locking block 9 more seamless, further improving the convenience of disassembling and assembling the printing roller 3.

[0021] As a preferred embodiment of this utility model, refer to Figure 4 The bottom end of the connecting block 5 is an arc surface 18 or a slope surface; More specifically, if the bottom end of the connecting block 5 is an arc surface 18, then the end of the locking block 9 that extends into the fixing groove 8 is an arc surface 18; if the bottom end of the connecting block 5 is a slope, then the end of the locking block 9 that extends into the fixing groove 8 is a slope. When the connecting block 5 is inserted into the groove 4, the arc surface 18 or the inclined surface at the bottom end of the connecting block 5 first plays a guiding role to avoid hard jamming with the inner wall of the groove 4, and guides the connecting block 5 to quickly align with the groove 4 and slide in smoothly.

[0022] As a preferred embodiment of this utility model, the bracket 2 is a telescopic structure; More specifically, the bracket 2 adopts an electric telescopic rod, hydraulic cylinder or lead screw structure, the purpose of which is to adjust the overall height of the bracket 2 to adapt to the height installation requirements of the printing roller 3.

[0023] As a preferred embodiment of this utility model, refer to Figure 1 The connecting arm 16 is provided with a grip. The grip can be designed to fit the curvature of the palm according to the hand grip posture. It is equipped with anti-slip texture or soft covering layer, which can not only avoid the pain caused by the force when disassembling and assembling the printing roller 3, and reduce the fatigue of long-term operation, but also increase the friction between the hand and the grip to prevent the connecting arm 16 from slipping and becoming out of control.

[0024] As a preferred embodiment of this utility model, refer to Figure 2 A torsion spring 19 for resetting the position of the power rod 14 is mounted on the fixed shaft 13. When disassembling the printing roller 3, the operator holds the connecting arm 16 to drive the power rod 14 to rotate around the fixed shaft 13, and simultaneously compresses the torsion spring 19 to store energy. After disassembly is completed and the connecting arm 16 is released, the torsion spring 19 can automatically release its elastic potential energy, driving the power rod 14 to quickly reset to its initial position. There is no need to manually bend the power rod 14 to adjust its position, reducing the number of operation steps and further providing restoring force for each component.

[0025] As a preferred embodiment of this utility model, refer to Figure 2The power rod 14 is fixed with a support rod 20. More specifically, the power rod 14 is generally angular. In order to prevent it from breaking, the support rod 20 is fixed on the power rod 14, so that the power rod 14 and the support rod 20 form a stable triangular structure, thereby improving the reliability of the power rod 14.

[0026] It should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solution of this utility model without departing from the spirit and scope of the technical solution of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. An assembly mechanism for a variable width printing roller, the assembly mechanism comprising two bearing seats (1), two supports (2), and a printing roller (3), wherein both ends of the printing roller (3) rotate on the bearing seats (1); characterized in that, A groove (4) is provided on the top of the bracket (2), and a connecting block (5) that is inserted into the groove (4) is fixed at the bottom of the bearing seat (1). The inner wall of the groove (4) is provided with a sliding groove (6), and the inner wall of the sliding groove (6) away from the groove (4) is connected to the surface of the bracket (2) through a through hole (7). The connecting block (5) is provided with a fixing groove (8). The assembly mechanism also includes a locking block (9) that slides in the slide groove (6), and the locking block (9) is fixed with an extension rod (10) that passes through the through hole (7); a spring (11) is fitted on the extension rod (10), and the two ends of the spring (11) are in contact with the locking block (9) and the inner wall of the slide groove (6) respectively; When the two ends of the locking block (9) are respectively in the sliding groove (6) and the fixing groove (8), the connecting block (5) and the bracket (2) are fixed in position; The extension rod (10) has a strip hole (12) at one end outside the bracket (2). The bracket (2) is fixed with a fixed shaft (13). The middle part of the power rod (14) is rotatably connected to the fixed shaft (13). One end of the power rod (14) is fixed with a push shaft (15) that passes through the strip hole (12). It also includes a connecting arm (16), the two ends of which are rotatably connected to the other ends of the two power rods (14).

2. The assembly mechanism for the variable width printing roller as described in claim 1, characterized in that, The connecting arm (16) is a telescopic structure.

3. The assembly mechanism for the variable width printing roller as described in claim 1, characterized in that, The extension rod (10) is fixed with a baffle (17). When the two ends of the locking block (9) are respectively in the sliding groove (6) and the fixing groove (8), the baffle (17) abuts against the outer wall of the bracket (2). The locking block (9) extends into the fixing groove (8) and has an arc surface (18) or a slope at one end.

4. The assembly mechanism for the variable width printing roller as described in claim 3, characterized in that, The bottom end of the connecting block (5) is an arc surface (18) or a slope surface.

5. The assembly mechanism for the variable width printing roller as described in claim 1, characterized in that, The bracket (2) is a telescopic structure.

6. The assembly mechanism for the variable width printing roller as described in claim 1, characterized in that, The connecting arm (16) is provided with a gripping part.

7. The assembly mechanism for the variable width printing roller as described in claim 1, characterized in that, A torsion spring (19) for resetting the position of the power rod (14) is fitted on the fixed shaft (13).

8. The assembly mechanism for the variable width printing roller as described in claim 1, characterized in that, The power rod (14) is fixed with a support rod (20).

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