Label pressing assembly

Abstract

The utility model discloses a label pressing assembly, which relates to the field of label production and comprises a driving roller and a driven roller which are arranged in parallel, the driving roller rotates on the surface of a side plate, the driven roller is connected with the side plate through an elastic sliding device, so that a gap between the driving roller and the driven roller can be changed, and the shaft ends of the driving roller and the driven roller are respectively and rotatably provided with a lower arm plate and an upper arm plate. The two ends of the connecting plate are rotationally connected with the lower arm plate and the upper arm plate respectively, gears are arranged at the shaft end of the driving roller, the shaft end of the driven roller and the hinged portions of the two ends of the connecting plate respectively, and the four gears are sequentially connected in a meshed mode. The gears at the ends of the driving roller and the driven roller are in meshing transmission through the gears at the two ends of the connecting plate, so that the driving roller and the driven roller keep stable transmission, meanwhile, clearance and pressing force adjustment can be conducted, and the use flexibility of the pressing device is improved.

Description

Technical Field

[0001] The utility model relates to the field of label production, in particular to a label pressing assembly. Background Art

[0002] Self-adhesive labels need to be laminated with base paper and then cut. The label laminating the base paper needs to be pressed by two counter-rotating pressure rollers. To ensure that the label pressing does not wrinkle or blister, it is necessary to maintain appropriate pressure and the same counter-rotating speed for the two pressure rollers. However, in order to ensure the same rotational speed for the existing label pressing rollers, direct gear meshing transmission is used, and the gap and pressure intensity between the two pressure rollers are restricted by gear meshing and cannot be adjusted, reducing the flexibility of the use of the pressing device. Summary of the Utility Model

[0003] The purpose of the utility model is to provide a label pressing assembly for solving the problem that the gap and pressure value of the pressure rollers cannot be adjusted when the traditional pressure rollers ensure synchronous transmission.

[0004] In order to solve the problems existing in the prior art, the technical solution of the utility model is as follows:

[0005] A label pressing assembly includes a driving roller and a driven roller arranged in parallel. The driving roller rotates on the surface of a side plate, and the driven roller is connected to the side plate through an elastic sliding device, so that the gap between the driving roller and the driven roller can be changed. Lower arm plates and upper arm plates are respectively rotatably arranged at the shaft ends of the driving roller and the driven roller. The two ends of a connecting plate are respectively rotatably connected to the lower arm plate and the upper arm plate. Gears are arranged at the shaft ends of the driving roller and the driven roller and at the hinged parts at both ends of the connecting plate, and the four gears are sequentially meshed and connected.

[0006] Preferably, the elastic sliding device includes a slider. A chute is formed on the surface of the side plate. The slider is elastically slidably arranged in the chute through a spring, and the shaft end of the driven roller rotatably penetrates through the slider.

[0007] Preferably, a pressure block is slidably arranged in the chute. The slider is elastically connected to the pressure block through a spring, and a screw threadedly penetrates into the chute and abuts against the pressure block.

[0008] Preferably, the driving roller and the driven roller have the same diameter, and the gears at the ends of the driving roller and the driven roller are of the same specification.

[0009] Preferably, when the driving roller and the driven roller reach the minimum gap, the gears at their ends do not contact.

[0010] Preferably, the upper arm plate includes a first split body and a second split body. The contact surfaces of the first split body and the second split body are concavo-convexly inserted. First ear blocks and second ear blocks are respectively arranged on the surfaces of the first split body and the second split body. The screw penetrates through the second ear block and is threadedly connected to the first ear block, so that the first split body and the second split body are tightened and fixed.

[0011] Preferably, a flexible layer is provided on the surface of the driving roller or the driven roller.

[0012] Compared with the related art, the utility model has the following beneficial effects:

[0013] The gap between the driving roller and the driven roller of the utility model can be elastically adjusted through an elastic sliding device. The gears at the ends of the driving roller and the driven roller are meshed and driven through the gears at both ends of the connecting plate, so that the gap and the pressing force can be adjusted while the driving roller and the driven roller maintain stable transmission, improving the flexibility of the use of the pressing device. Description of the Drawings

[0014] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0015] Figure 2 It is a schematic diagram of the structure of the elastic sliding device of the utility model.

[0016] Figure 3 It is a schematic diagram of the structure of the upper arm plate of the utility model.

[0017] Reference numerals: 1, driving roller; 2, driven roller; 3, side plate; 4, sliding groove; 5, slider; 6, lower arm plate; 7, upper arm plate; 71, first split body; 72, second split body; 73, first ear block; 74, second ear block; 8, connecting plate; 9, pressing block. Detailed Embodiment

[0018] In order to make the purpose, technical solution and advantages of the utility model clearer, the following further describes the utility model in detail with reference to the drawings and embodiments.

[0019] As Figure 1 , Figure 2 shown, for the label pressing assembly, with the side plate 3 as the installation base, the driving roller 1 is rotatably installed on the surface of the side plate 3, the driven roller 2 is parallelly distributed above the driving roller 1, the elastic sliding device includes a slider 5, a vertically extending sliding groove 4 is opened on the surface of the side plate 3, the slider 5 is elastically slidably arranged in the sliding groove 4 through a spring, the shaft end of the driven roller 2 rotatably penetrates through the slider 5, the shaft ends of the driving roller 1 and the driven roller 2 are respectively rotatably provided with a lower arm plate 6 and an upper arm plate 7, both ends of the connecting plate 8 are respectively rotatably connected to the lower arm plate 6 and the upper arm plate 7, so that the lower arm plate 6, the connecting plate 8 and the upper arm plate 7 are distributed in a deformable U shape, gears are fixed at the shaft ends of the driving roller 1 and the driven roller 2, and gears are rotatably arranged at the parts where both ends of the connecting plate 8 are hinged to the lower arm plate 6 and the upper arm plate 7, and the four gears are sequentially meshed and connected;

[0020] The driving roller 1 is driven by a driving structure to rotate. Through the transmission of gears, the driven roller 2 rotates synchronously and in the opposite direction. The labeled paper and the backing paper after gluing pass through the space between the driving roller 1 and the driven roller 2 and are pressed together. The driven roller 2 is elastically slidably limited by an elastically mounted slider 5, so that the gap between the driven roller 2 and the driving roller 1 can be adjusted adaptively. When the gap between the driving roller 1 and the driven roller 2 changes, rotational deformation occurs among the lower arm plate 6, the upper arm plate 7, and the connecting plate 8, but the gears still transmit stably, maintaining the synchronous and opposite rotation of the driving roller 1 and the driven roller 2.

[0021] When the driving roller 1 and the driven roller 2 reach the minimum gap, the gears at their ends do not contact, and the four gears always transmit stably.

[0022] As Figure 2 shown, a pressing block 9 is slidably arranged in the chute 4. The slider 5 is elastically connected to the pressing block 9 through a spring. A screw threadedly penetrates into the chute 4 and abuts against the pressing block 9. By rotating the screw, the position of the pressing block 9 is adjusted to adjust the elastic pressure intensity of the slider 5, so as to adjust the pressure between the driving roller 1 and the driven roller 2.

[0023] The driving roller 1 and the driven roller 2 have the same diameter, and the gears at the ends of the driving roller 1 and the driven roller 2 are gears of the same specification, so that the driving roller 1 and the driven roller 2 rotate synchronously and at the same speed in the opposite direction to press and convey the label tape. A flexible layer is arranged on the surface of the driving roller 1 or the driven roller 2, so that the driving roller 1 and the driven roller 2 tightly press the label tape flexibly, avoiding wrinkling and blistering.

[0024] As Figure 3 shown, the upper arm plate 7 includes a first split body 71 and a second split body 72. The contact surfaces of the first split body 71 and the second split body 72 are concavo-convexly inserted. First ear blocks 73 and second ear blocks 74 are respectively arranged on the surfaces of the first split body 71 and the second split body 72. A screw penetrates through the second ear block 74 and is threadedly connected to the first ear block 73, so that the first split body 71 and the second split body are tightened and fixed. By rotating and loosening the screw, the overall length of the first split body 71 and the second split body is elongated, the meshing between the gear at the shaft end of the driven roller 2 and the other gears is cut off, and the driven roller 2 can rotate freely. The relative angle between the driving roller 1 and the driven roller 2 can be adjusted for special processing conditions.

[0025] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A label pressing assembly, characterized in that: The invention comprises a driving roller (1) and a driven roller (2) which are arranged in parallel. The driving roller (1) rotates on the surface of a side plate (3). The driven roller (2) is connected to the side plate (3) via an elastic sliding device so that the gap between the driving roller (1) and the driven roller (2) can be changed. The shaft ends of the driving roller (1) and the driven roller (2) are respectively rotatably arranged with a lower arm plate (6) and an upper arm plate (7). The two ends of a connecting plate (8) are respectively rotatably connected with the lower arm plate (6) and the upper arm plate (7). Gears are arranged at the shaft ends of the driving roller (1) and the driven roller (2) and at the hinged parts at the two ends of the connecting plate (8). The four gears are meshed and connected in sequence.

2. The label pressing assembly according to claim 1, characterized in that: The elastic sliding device comprises a slider (5), a sliding groove (4) is provided on the surface of the side plate (3), the slider (5) is elastically slidably arranged in the sliding groove (4) by means of a spring, and the shaft end of the driven roller (2) rotates and passes through the slider (5).

3. The label pressing assembly according to claim 2, characterized in that: A pressure block (9) is slidably arranged in the slide groove (4), the slider (5) is elastically connected to the pressure block (9) via a spring, and the screw thread penetrates into the slide groove (4) to abut against the pressure block (9).

4. The label pressing assembly according to claim 1, characterized in that: The active roller (1) and the driven roller (2) have the same diameter, and the gears at the ends of the active roller (1) and the driven roller (2) are gears of the same specifications.

5. The label pressing assembly according to claim 4, characterized in that: When the active roller (1) and the driven roller (2) reach a minimum gap, the gears at their ends do not contact each other.

6. The label pressing assembly according to claim 1, characterized in that: The upper arm plate (7) comprises a first split body (71) and a second split body (72); the contact surfaces of the first split body (71) and the second split body (72) are concave-convex plug-in; a first ear block (73) and a second ear block (74) are respectively arranged on the surfaces of the first split body (71) and the second split body (72); a screw passes through the second ear block (74) and is threadedly connected to the first ear block (73), so that the first split body (71) and the second split body are tightened and fixed.

7. The label pressing assembly according to claim 1, characterized in that: A flexible layer is provided on the surface of the active roller (1) or the driven roller (2).

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