Label pressing device of automatic labeling machine

Abstract

The utility model discloses a label pressing device of an automatic labeling machine, which relates to the technical field of label pressing and comprises a support, an air cylinder is arranged on the top surface of the support, a pressing component is arranged on a telescopic shaft of the air cylinder, the pressing component comprises a pressing head, and the center of the top surface of the pressing head is fixedly connected with an output shaft of the air cylinder. A positioning sleeve is arranged on the side face of the pressing head, and a positioning cavity is formed in the positioning sleeve. According to the automatic labeling machine, through the arrangement of the pressing assembly, after labeling is completed, a box can continue to be conveyed to the position below a pressing head, a telescopic shaft of an air cylinder drives the pressing head to move downwards, a positioning sleeve abuts against the four edges of a label sticker for positioning, then the pressing head presses downwards to press the label sticker again, and the pressing effect of the automatic labeling machine is better; and the pressing rollers of the driving frame and the driven frame can sequentially pass through the position above the label stickers, third-time pressing of the label stickers is achieved, and pressing of the label stickers is more stable.

Description

Technical Field

[0001] The utility model relates to the technical field of label pressing, in particular to a label pressing device of an automatic labeling machine. Background Art

[0002] In modern industrial automation production, automatic labeling machines have become an indispensable and important equipment. It can achieve efficient and accurate labeling of products, greatly improving production efficiency and reducing labor costs. However, with the intensification of market competition and the improvement of consumers' requirements for product quality, higher requirements are also placed on the performance of automatic labeling machines.

[0003] During the operation of the automatic labeling machine, the performance of the label pressing device directly affects the quality and stability of label attachment. The traditional single pressing device often has problems such as uneven pressing and insufficient pressing force, which in turn leads to problems such as loose label attachment, damaged label or label warping, affecting the product's appearance quality and market competitiveness.

[0004] In view of this, this application is hereby filed. Utility Model Content

[0005] The purpose of the utility model is to provide a label pressing device for an automatic labeling machine to solve the problems raised in the above background technology.

[0006] In order to solve the above technical problems, the utility model provides a label pressing device for an automatic labeling machine, including a bracket, a cylinder is arranged on the top surface of the bracket, a pressing assembly is arranged on the telescopic shaft of the cylinder, the pressing assembly includes a pressure head fixedly connected to the cylinder output shaft at the center of the top surface, a positioning sleeve is arranged on the side of the pressure head, a positioning cavity is opened in the positioning sleeve, and a slider is slidably connected in the positioning cavity.

[0007] Furthermore, a positioning spring is fixedly connected to the positioning cavity, the sliding block is hollow, and the other end of the positioning spring is fixedly connected to the inner bottom surface of the sliding block.

[0008] Furthermore, the pressure head is a regular quadrilateral, positioning sleeves are arranged on the central axes of the four sides of the top surface of the pressure head, and a positioning head is arranged at the bottom end of the sliding block.

[0009] Furthermore, a mounting plate is provided on the bottom surface of the bracket, a second pressing assembly is provided on the mounting plate, the second pressing assembly includes an active frame whose upper end is rotatably connected to the mounting plate, and a clamping roller is provided at the lower end of the active frame.

[0010] Furthermore, the second pressing assembly also includes a driven frame whose upper end is rotatably connected to the mounting plate, and a connecting rod arranged between the active frame and the driven frame, a clamping roller is also arranged at the lower end of the driven frame, an extension plate is arranged above the driven frame, the active frame is bent toward the driven frame, the driven frame is bent toward the active frame, and both ends of the connecting rod are rotatably connected to the extension plate and the bending parts of the active frame respectively.

[0011] Furthermore, a mounting rod is provided on the mounting plate, a connecting shaft is provided on the extension plate, a compression spring is arranged between the connecting shaft and the mounting rod, and two ends of the compression spring are rotatably connected to the connecting shaft and the mounting rod respectively.

[0012] Compared with the prior art, the beneficial effects of the utility model are:

[0013] By setting up the pressing component, after the labeling is completed, the box will continue to be transported to the bottom of the pressing head, the telescopic shaft of the cylinder drives the pressing head to move downward, the positioning sleeve and the four sides of the label are contacted and positioned, and then the pressing head is pressed down to press the label again, making its pressing effect even better.

[0014] By setting the second pressing assembly, the pressing rollers of the active frame and the driven frame will pass over the label in sequence, so as to realize the third pressing of the label, making the pressing of the label more stable. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall structure of a label pressing device of an automatic labeling machine;

[0016] Figure 2 It is a schematic cross-sectional structure diagram of a pressing component of a label pressing device of an automatic labeling machine;

[0017] Figure 3 The present invention is a schematic cross-sectional structure diagram of a second pressing component of a label pressing device of an automatic labeling machine.

[0018] In the figure:

[0019] 1. Bracket;

[0020] 2. Cylinder;

[0021] 3. Press head; 301. Positioning sleeve; 302. Positioning cavity; 303. Slider; 304. Positioning spring; 305. Positioning head;

[0022] 4. Active frame; 401. Driven frame; 402. Connecting rod; 403. Connecting shaft; 404. Compression spring; 405. Mounting rod. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0024] See also Figure 1-3 , the utility model provides a technical solution:

[0025] A label pressing device for an automatic labeling machine includes a labeling machine and a stepping conveyor belt. The labeling machine is arranged on the conveyor belt, and a bracket 1 is arranged at the rear of the labeling machine. A cylinder 2 is arranged on the top surface of the bracket 1, and a pressing assembly is arranged on the telescopic shaft of the cylinder 2. The pressing assembly includes a pressure head 3 whose top center is fixedly connected to the output shaft of the cylinder 2, a positioning sleeve 301 is arranged on the side of the pressure head 3, a positioning cavity 302 is opened in the positioning sleeve 301, and a slider 303 is slidably connected in the positioning cavity 302. The pressure head 3 is a regular quadrilateral, and the positioning sleeves 301 are arranged on the central axes of the four sides of the top surface of the pressure head 3.

[0026] By adopting the above design, after the labeling machine completes labeling, the conveyor belt continues to transport the box to the bottom of the cylinder 2, and the cylinder 2 pushes the telescopic shaft downward to press the label again through the pressing head 3. Before the pressing head 3 and the label are pressed, the slider 303 will first press and fix the four corners of the label to prevent the label from shifting when the pressing head 3 is pressed, thereby making the re-pressing effect of the pressing head 3 even better.

[0027] Furthermore, a positioning head 305 is provided at the bottom end of the slider 303 , a positioning spring 304 is fixedly connected in the positioning cavity 302 , the slider 303 is hollow, and the other end of the positioning spring 304 is fixedly connected to the inner bottom surface of the slider 303 .

[0028] By adopting the above design, the slider 303 can contact the label on the top surface of the box through the positioning head 305. By increasing the contact area, the positioning effect is improved, and after the slider 303 contacts and contracts with the label on the top surface of the box as the pressure head 3 moves downward, the positioning spring 304 will deform to generate elastic potential energy, and generate a reaction force due to the material and physical properties, so that the pressure force between the positioning head 305 and the label is greater, thereby improving the pressing effect of the pressing assembly.

[0029] The utility model provides another technical solution:

[0030] See also Figure 3A mounting plate is also provided on the bottom surface of the bracket 1, and a second pressing assembly is provided on the mounting plate. The second pressing assembly includes an active frame 4 whose upper end is rotatably connected to the mounting plate, and a clamping roller is provided at the lower end of the active frame 4. The second pressing assembly also includes a driven frame 401 rotatably connected to the mounting plate at the upper end, and a connecting rod 402 arranged between the active frame 4 and the driven frame 401, and a clamping roller is also provided at the lower end of the driven frame 401. An extension plate is provided above the driven frame 401, and the active frame 4 is bent toward the driven frame 401, and the driven frame 401 is bent toward the active frame 4, and both ends of the connecting rod 402 are rotatably connected to the extension plate and the bending part of the active frame 4 respectively.

[0031] By adopting the above design, after the box is pressed again by the pressure head 3, its side surface will still contact with the pressing roller on the active frame 4, thereby driving the end of the active frame 4 provided with the pressing roller to rotate, and then driving the end of the driven frame 401 provided with the pressing roller to rotate, and then the box continues to move forward, and the pressing rollers on the active frame 4 and the driven frame 401 will roll over the label on the top surface of the box in turn, and press the label by gravity, and when the pressing roller of the active frame 4 or the driven frame 401 is in a suspended state, it can transmit the gravity to the other pressing roller, so that the pressure of the other pressing roller is greater.

[0032] Furthermore, a mounting rod 405 is provided on the mounting plate, and a connecting shaft 403 is provided on the extension plate. A compression spring 404 is arranged between the connecting shaft 403 and the mounting rod 405, and both ends of the compression spring 404 are rotatably connected to the connecting shaft 403 and the mounting rod 405 respectively.

[0033] By adopting the above-mentioned design, when one end of the active frame 4 provided with a clamping roller rotates upward, it can drive the other end of the driven frame 401 provided with a clamping roller to rotate upward, and synchronously stretch the clamping spring 404 provided between the connecting shaft 403 and the mounting rod 405, so that the clamping spring 404 is deformed to accumulate elastic potential energy, and because of the material and physical properties of the clamping spring 404, the clamping spring 404 will continue to generate a force to reset it before resetting, thereby making the clamping rollers on the active frame 4 and the driven frame 401 have a greater force to press the label, thereby making the multiple clamping effect better.

[0034] Working principle:

[0035] When in use, one end of the bracket 1 provided with the pressure head 3 is fixedly connected to the rear of the labeling machine, and then the step-by-step conveyor belt is started to transport the box, and the box is labeled when passing through the labeling machine.

[0036] After labeling is completed, when the box is transported to the bottom of the pressing head 3, the telescopic shaft of the cylinder 2 drives the pressing head 3 to move downward, the positioning sleeve 301 contacts and positions the four sides of the label, and then the pressing head 3 presses down to press the label again, making the pressing effect better.

[0037] The box is then transported further and contacts one end of the active frame 4 provided with a clamping roller, causing the active frame 4 and the driven frame 401 to rotate upward, and then the clamping roller passes over the top of the label in turn, achieving the third lamination of the label, making the label lamination more stable.

Claims

1. A label pressing device for an automatic labeling machine, comprising a bracket (1), characterized in that: The top surface of the support (1) is provided with a cylinder (2), and a pressing assembly is provided on the telescopic shaft of the cylinder (2), the pressing assembly comprising a pressure head (3) fixedly connected to the output shaft of the cylinder (2) at the center of the top surface, a positioning sleeve (301) being provided on the side of the pressure head (3), a positioning cavity (302) being provided in the positioning sleeve (301), and a sliding block (303) being slidably connected in the positioning cavity (302).

2. The label pressing device of the automatic labeling machine according to claim 1, characterized in that: The positioning cavity (302) is fixedly connected with a positioning spring (304), the sliding block (303) is hollow, and the other end of the positioning spring (304) is fixedly connected to the inner bottom surface of the sliding block (303).

3. The label pressing device of the automatic labeling machine according to claim 2, characterized in that: The pressure head (3) is a regular quadrilateral, and positioning sleeves (301) are arranged on the central axes of the four sides of the top surface of the pressure head (3), and a positioning head (305) is arranged at the bottom end of the sliding block (303).

4. The label pressing device of the automatic labeling machine according to claim 3, characterized in that: The bottom surface of the bracket (1) is also provided with a mounting plate, on which a second pressing assembly is provided, the second pressing assembly comprising an active frame (4) whose upper end is rotatably connected to the mounting plate, and a pressing roller is provided at the lower end of the active frame (4).

5. The label pressing device of the automatic labeling machine according to claim 4, characterized in that: The second pressing assembly also includes a driven frame (401) whose upper end is rotatably connected to the mounting plate, and a connecting rod (402) arranged between the active frame (4) and the driven frame (401); a pressing roller is also arranged at the lower end of the driven frame (401); an extension plate is arranged above the driven frame (401); the active frame (4) is bent toward the driven frame (401); the driven frame (401) is bent toward the active frame (4); and both ends of the connecting rod (402) are rotatably connected to the extension plate and the bending part of the active frame (4), respectively.

6. The label pressing device of an automatic labeling machine according to claim 5, characterized in that: The mounting plate is also provided with a mounting rod (405), and the extension plate is also provided with a connecting shaft (403). A compression spring (404) is arranged between the connecting shaft (403) and the mounting rod (405), and the two ends of the compression spring (404) are rotatably connected to the connecting shaft (403) and the mounting rod (405) respectively.

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