Rubber roller
By designing a rubber roller with buckles, cuttings and rotatable pressing rods, the unstable printing effect caused by the thermal expansion and contraction of the rubber plate is solved, and the stable tension of the rubber plate is achieved and the improvement of the rubber plate is improved. The stability of the printing effect.
Patent Information
- Application Number
- CN202421354993.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-14
- Publication Date
- 2025-02-14
- Estimated Expiration
- 2034-06-14
AI Technical Summary
During the offset printing process, the glue softens due to thermal expansion and contraction of the adhesive plate, causing the rubber to expand and contract, which in turn affects the printing effect and leads to color deviation and instability.
A rubber roller including a roller and a rubber plate is designed. The front and rear ends of the rubber plate are connected with buckle strips and inserts respectively. The roller is equipped with a pressing groove and a rotatable pressing rod. The pressing rod is operated by an external hex wrench. Rotate, drive the buckle and insert into the corresponding slot and slot, tighten the adhesive plate, and lock the press rod through the locking mechanism to keep the adhesive plate tight.
Through this design, the rubber sheet is ensured to remain stable and tightened, avoiding the expansion and contraction of the rubber sheet caused by softening of the glue, thereby improving the stability of the printing effect and avoiding color deviation.
Smart Images
Figure CN222473624U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to a component on an offset printing machine, in particular to a rubber roller. Background Art
[0002] An offset printing press is a type of lithographic printing press. During printing, the printed image is first printed on a rubber cylinder and then transferred to paper by the rubber cylinder. According to the number of colors printed in one pass, it can be divided into single-color, two-color, four-color and multi-color printing presses; according to the maximum paper format, it can be divided into small offset printing presses, six-mo, four-mo, double-mo and full-sheet printing presses.
[0003] During production, the rubber roller presses the printed image onto the substrate. The traditional rubber roller consists of a rubber plate and a roller. The rubber plate is glued to the circumferential surface of the roller. Due to the thermal expansion and contraction of the rubber plate during the offset printing process, the glue will soften, and the rubber plate will expand and contract on the roller and leave a gap. This will cause the color of the pattern to deviate after paper feeding, making it difficult to achieve a stable printing effect. Utility Model Content
[0004] In order to solve the above problems, the purpose of the utility model is to provide a rubber roller with a stable and reliable structure.
[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a rubber roller, comprising a roller and a rubber plate, the rubber plate is wrapped around the roller, a buckle strip is connected to the front end of the rubber plate, and an insertion strip is connected to the rear end of the rubber plate, the roller is provided with a clamping groove arranged along its length direction, an entrance to the clamping groove is arranged on the peripheral wall of the roller, a rotatable pressure rod is arranged in the clamping groove, a clamping groove for clamping with the buckle strip is arranged on the side wall of the clamping groove, a slot for inserting the insertion strip is arranged on the pressure rod, one end of the pressure rod extends out of the end of the roller and is provided with a regular hexagonal driving shaft, the driving shaft is rotated by operating an external hexagonal wrench, and a locking mechanism is arranged between the end face of the roller and the pressure rod.
[0006] The locking mechanism includes a swing arm connected to the driving shaft, and the swing arm is connected to a rotatable screw through an inserted shaft. A raised fixing block is provided on the end surface of the drum, and a through hole is provided on the fixing block for the screw to pass through. After the screw passes through the through hole, a locking nut is arranged on the screw.
[0007] The beneficial effect of the utility model is that after the buckle strip on the rubber sheet is inserted into the clamping groove from the entrance, the pressure rod is rotated, and the pressure rod drives the buckle strip to enter the slot. After the insert strip on the rubber sheet passes through the entrance, it is inserted into the slot on the pressure rod in the clamping groove. Then the pressure rod is rotated to tighten the rubber sheet, and then the pressure rod is locked by the locking mechanism to ensure that the rubber sheet remains in a tightened state. The rotation of the pressure rod can be driven by an external hexagonal wrench, so as to achieve a technical effect of stable and reliable structure, thereby avoiding the expansion and contraction changes of the rubber sheet on the roller caused by the softening of the glue.
[0008] The utility model is further described below in conjunction with the accompanying drawings and specific implementation methods. BRIEF DESCRIPTION OF THE DRAWINGS
[0009] Figure 1 A three-dimensional diagram of a specific implementation of the utility model;
[0010] Figure 2 It is a longitudinal sectional view of a specific implementation mode of the utility model;
[0011] Figure 3 It is a partial stereogram of a specific implementation method of the utility model;
[0012] Figure 4 It is a transverse cross-sectional view of a specific implementation method of the utility model. DETAILED DESCRIPTION
[0013] The present invention is specifically described below through embodiments, which are only used to further illustrate the present invention and should not be construed as limiting the protection scope of the present invention.
[0014] like Figure 1 — Figure 4 As shown, this embodiment discloses a rubber roller, comprising a roller 1 and a rubber sheet 2, the rubber sheet 2 is wound around the roller 1, a buckle strip 21 is connected to the front end of the rubber sheet 2, and an insertion strip 22 is connected to the rear end of the rubber sheet 2, a clamping groove 3 arranged along the length direction of the roller 1 is provided, an entrance to the clamping groove 3 is provided on the peripheral wall of the roller 1, a rotatable pressure rod 4 is provided in the clamping groove 3, a clamping groove 31 for clamping with the buckle strip 21 is provided on the side wall of the clamping groove 3, a slot 41 for inserting the insertion strip 22 is provided on the pressure rod 4, one end of the pressure rod 4 extends out of the end of the roller 1 and is provided with a regular hexagonal driving shaft 42, the driving shaft 42 is rotated by operating an external hexagonal wrench, and a locking mechanism 5 is arranged between the end face of the roller 1 and the pressure rod 4.
[0015] The locking mechanism 5 includes a swing arm 51 connected to the driving shaft 42, and the swing arm 51 is connected to a rotatable screw 52 through an insertion shaft. A protruding fixing block 53 is provided on the end surface of the drum 1, and a through hole is provided on the fixing block 53 for the screw 52 to pass through. After the screw 52 passes through the through hole, a locking nut 54 is arranged on the screw 52. In this way, after the pressure rod 4 fixes the head and tail of the rubber sheet 2 in the pressing groove 3, the position of the screw 52 passing through the fixing block 53 is determined, and the position of the screw 52 can be locked by the locking nut 54, which is convenient and reliable to operate.
[0016] By adopting the above technical scheme, the buckle strip 21 on the rubber sheet 2 is inserted into the clamping groove 3 from the entrance, and then the pressure rod 4 is rotated. The pressure rod 4 drives the buckle strip 21 to enter the card groove 31. After the insertion strip 22 on the rubber sheet 2 passes through the entrance, it is inserted into the slot 41 on the pressure rod 4 in the clamping groove 3. Then the pressure rod 4 is rotated to tighten the rubber sheet 2, and then the pressure rod 4 is locked by the locking mechanism 5 to ensure that the rubber sheet 2 remains in a tightened state. The rotation of the pressure rod 4 can be driven by an external hexagonal wrench, so as to achieve a technical effect of stable and reliable structure, thereby avoiding the expansion and contraction changes of the rubber sheet 2 on the roller 1 caused by the softening of the glue.
[0017] The above shows and describes the basic principles and main features of the utility model and the advantages of the utility model. For those skilled in the art, it is obvious that the utility model is not limited to the details of the above exemplary embodiments, and can be implemented in other specific forms without departing from the spirit or basic features of the utility model. Therefore, no matter from which point of view, the embodiments should be regarded as exemplary and non-restrictive. The scope of the utility model is limited by the attached claims rather than the above description, and it is intended to include all changes within the meaning and scope of the equivalent elements of the claims. Any figure mark in the claims should not be regarded as limiting the claims involved.
[0018] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.
Claims
1. A rubber roller, comprising a roller and a rubber sheet, wherein the rubber sheet is wound around the roller, and characterized in that: A buckle strip is connected to the front end of the rubber sheet, and an insertion strip is connected to the rear end of the rubber sheet. The roller is provided with a clamping groove arranged along the length direction thereof, and an entrance to the clamping groove is arranged on the peripheral wall of the roller. A rotatable pressure rod is arranged in the clamping groove, and a clamping groove for clamping with the buckle strip is arranged on the side wall of the clamping groove. A slot for inserting the insertion strip is arranged on the pressure rod, and one end of the pressure rod extends out of the end of the roller and is provided with a regular hexagonal driving shaft rod, which is rotated by operating an external hexagonal wrench, and a locking mechanism is arranged between the end face of the roller and the pressure rod.
2. The rubber roller according to claim 1, characterized in that: The locking mechanism includes a swing arm connected to the driving shaft, and the swing arm is connected to a rotatable screw through an inserted shaft. A raised fixing block is provided on the end surface of the drum, and a through hole is provided on the fixing block for the screw to pass through. After the screw passes through the through hole, a locking nut is arranged on the screw.