Pressing structure of folder gluer

Abstract

The utility model relates to the technical field of folder gluers, in particular to a folder gluer pressing structure which comprises a pressing plate and a mounting plate, and the mounting plate is arranged above the pressing plate. A lifting plate and a concave frame are arranged between the mounting plate and the pressing plate, the lifting plate is located above the concave frame, a pressure sensing switch and a plurality of spring return rods are connected between the lifting plate and the concave frame, and a pressure warning lamp is mounted at the upper end of the lifting plate; a glue scraping plate is arranged on the lower left portion of the pressing plate, and the upper end of the glue scraping plate is connected with a plurality of glue scraping strips. According to the paperboard pressing device, the pressing force on a paperboard can be accurately controlled, the situation that the pressing force on the paperboard is too large or too small is avoided, glue attached to the lower end of the pressing plate can be conveniently scraped and cleaned through the glue scraping strip on the glue scraping plate, and therefore the situation that the paperboard is continuously pressed due to the fact that the glue is attached to the pressing plate is avoided; and glue on the pressing plate is prevented from polluting a subsequent to-be-pressed paperboard.

Description

Technical Field

[0001] The utility model relates to the technical field of folder gluing machines, in particular to a pressing structure of a folder gluing machine. Background Art

[0002] In the packaging and printing industry, the application of box gluing machines is the last step in the processing of packaging boxes. It is to fold the printed and die-cut cardboard into shape and glue the edges. Machine box gluing has replaced manual box gluing, reduced labor costs and improved efficiency. The parts of the box gluing machine are divided into paper feeding part, pre-folding part, hook bottom, forming part and box pressing part. The box gluing machine can be divided into smooth gluing machine, hook bottom gluer and other machines according to their functions. General box gluing machines do not have groove bottom function or even pre-folding. The better ones have pre-folding. Of course, most of the box gluing machines now have pre-folding. Of course, a groove bottom gluer must be used to make hook bottom boxes. Box gluing machines with better functions can also make hexagonal and special-shaped boxes, but they must be equipped with a spraying system and other devices.

[0003] For example, the Chinese patent authorization announcement number CN219544152U discloses a gluing pressure strip structure for a box gluing machine, comprising: a box body, in which a first mounting groove and a second mounting groove are arranged from top to bottom; an adjusting mechanism, comprising a screw rod penetrating the first mounting groove and the second mounting groove and a rotating handle arranged at the top of the screw rod; a pressure strip, which is arranged at the bottom of the box body and connected to the adjusting mechanism; a locking mechanism, which is arranged on the box body and used to limit the adjusting mechanism; wherein, there is no thread on a section of the screw rod located in the first mounting groove. The beneficial effect of this application is that by installing the adjusting mechanism on the box body, the adjusting mechanism can adjust the pressure strip, and the pressure strip is adjusted according to the thickness of the cardboard to be processed. After the pressure strip is adjusted, the adjusting mechanism is locked by the locking mechanism, which can effectively prevent the pressure strip from continuing to move, avoid the pressure strip being affected by the outside world and causing problems in subsequent processing, reduce the accident rate and defective rate, and thus improve the processing efficiency.

[0004] The defect of the prior art is that when the cardboard is pressed, it is impossible to accurately know whether the pressing force is too large or too small. If the pressing force is too large, it is easy to cause unnecessary indentations on the cardboard, while if the pressing force is too small, it is easy to cause insufficient pressing of the cardboard, which will affect the pressing quality of the cardboard. In addition, when the pressing plate presses the cardboard with glue, the glue overflows and adheres to the pressing plate. Since it is inconvenient to clean the glue on the pressing plate, if the pressing plate with glue continues to be used to press the cardboard, it is easy to cause the glue on the pressing plate to contaminate the subsequent cardboard to be pressed, which will also affect the processing quality of the cardboard. Utility Model Content

[0005] The utility model provides a pressing structure of a folder gluer, which is conducive to more accurately controlling the pressing force on the paperboard and conveniently cleaning off the glue adhered to the pressing plate.

[0006] To solve the above technical problems, the utility model adopts the following technical solutions:

[0007] A pressing structure of a box gluing machine, including a pressing plate and a mounting plate, the mounting plate is arranged above the pressing plate;

[0008] A lifting plate and a concave frame are arranged between the mounting plate and the pressing plate, the lifting plate is located above the concave frame, and a pressure induction switch and several spring return rods are connected between the lifting plate and the concave frame, and a pressure warning lamp is installed at the upper end of the lifting plate;

[0009] A glue scraping plate is arranged at the lower left of the pressing plate, several glue scraping strips are connected to the upper end of the glue scraping plate, and a left-right glue scraping driving assembly is arranged above the glue scraping plate.

[0010] Further, an electric cylinder is fixed in the middle of the lower end of the mounting plate, and the power end of the electric cylinder is connected to the upper end of the lifting plate.

[0011] Further, telescopic shafts are connected between both sides of the lower end of the mounting plate and the lifting plate, and a telescopic ruler is connected between the mounting plate and the lifting plate.

[0012] Further, the lower ends of both sides of the pressing plate are inclined, the upper ends of both sides of the glue scraping plate are inclined, and the inclined surface of the glue scraping plate fits the inclined surface of the pressing plate.

[0013] Further, the left-right glue scraping driving assembly includes a guide rod, a sliding block, a positive and negative motor, a lead screw and two spring telescopic rods distributed front and back, the guide rod is fixed in the concave frame, and the sliding block is slidably sleeved on the periphery of the guide rod.

[0014] Further, the positive and negative motor is fixed on the right inner wall of the concave frame, one end of the lead screw is connected to the power end of the positive and negative motor, and the other end of the lead screw is rotatably connected to the left inner wall of the concave frame, the sliding block is threadedly sleeved with the lead screw, and the spring telescopic rods are connected between the sliding block and the glue scraping plate.

[0015] The beneficial effects of the utility model:

[0016] 1. By setting a pressure induction switch and a pressure warning lamp, when the pressing plate presses the cardboard, the pressure induction switch controls the pressure warning lamp to light up. Therefore, it is beneficial to accurately control the pressing force on the cardboard, avoid the situation of too large or too small pressing force on the cardboard, and is beneficial to ensuring the pressing quality of the cardboard;

[0017] 2. Through the operation of the left and right glue scraping drive components, it is convenient to drive the glue scraping plate and the glue scraping strip to move left and right together. Therefore, it is convenient to scrape and clean the glue adhered to the lower end of the pressing plate through the glue scraping strip on the glue scraping plate, so as to avoid the pressing plate adhering to glue and continuing to press the cardboard, so as to prevent the glue on the pressing plate from contaminating the subsequent cardboard to be pressed, and better ensure the quality of the cardboard pressing process. Brief Description of the Drawings

[0018] Figure 1 is a schematic diagram of the overall structure of the present invention;

[0019] Figure 2 is a schematic diagram of the enlarged partial structure A of the present invention;

[0020] Figure 3 is a schematic diagram of the side view of the pressing plate of the present invention.

[0021] Description of the Reference Numerals:

[0022] Pressing plate 1, mounting plate 4, electric cylinder 5, telescopic rod 6, telescopic ruler 7, pressure induction switch 8, lifting plate 12, spring return rod 13, pressure warning light 14, concave frame 15, positive and negative motor 16, lead screw 17, guide rod 18, sliding plate 19, glue scraping plate 20, spring telescopic rod 21, glue scraping strip 22. Detailed Embodiment

[0023] For the convenience of understanding by those skilled in the art, the present invention will be further described below in conjunction with the embodiments and the drawings. The content mentioned in the embodiments does not limit the present invention.

[0024] As Figure 1 shown, in this embodiment, it includes a pressing plate 1 and a mounting plate 4. The mounting plate 4 is arranged above the pressing plate 1. An lifting plate 12 and a concave frame 15 are arranged between the mounting plate 4 and the pressing plate 1. The lifting plate 12 is located above the concave frame 15, and a pressure induction switch 8 and several spring return rods 13 are connected between the lifting plate 12 and the concave frame 15. A pressure warning light 14 is installed at the upper end of the lifting plate 12;

[0025] By setting the pressure induction switch 8 and the pressure warning light 14, when the pressing plate 1 presses the cardboard, on the premise that the pressure induction switch 8 is set in series with the pressure warning light 14, and a pre-start value is set for the pressure induction switch 8 (this pre-start value can be preset according to the specific pressing force on the cardboard). Therefore, after the pressing plate 1 presses the cardboard tightly, the pressure induction switch 8 will be pressed and started by the cooperation of the concave frame 15 and the lifting plate 12. The pressure induction switch 8 controls the pressure warning light 14 to light up. At this time, it means that the pressing force of the pressing plate 1 on the cardboard is just right, and it means that the cardboard has been pressed tightly. Therefore, it is beneficial to accurately control the pressing force on the cardboard, avoid the situation of too large or too small pressing force on the cardboard, and is beneficial to ensuring the pressing quality of the cardboard.

[0026] As Figures 1-3 shown, in this embodiment, a glue scraping plate 20 is provided below the left lower end of the pressing plate 1. A plurality of glue scraping strips 22 are connected to the upper end of the glue scraping plate 20. And a left and right glue scraping driving assembly is provided above the glue scraping plate 20. The lower ends of both left and right sides of the pressing plate 1 are inclined. The upper ends of both left and right sides of the glue scraping plate 20 are inclined. And the inclined surface of the glue scraping plate 20 fits with the inclined surface of the pressing plate 1. The left and right glue scraping driving assembly includes a guide rod 18, a sliding block 19, a positive and negative motor 16, a lead screw 17 and two spring telescopic rods 21 arranged front and back. The guide rod 18 is fixed in the concave frame 15. The sliding block 19 is slidably sleeved on the periphery of the guide rod 18. The positive and negative motor 16 is fixed on the right inner wall of the concave frame 15. One end of the lead screw 17 is connected to the power end of the positive and negative motor 16, and the other end of the lead screw 17 is rotatably connected to the left inner wall of the concave frame 15. The sliding block 19 is threadedly sleeved with the lead screw 17. The spring telescopic rods 21 are respectively connected between the sliding block 19 and the glue scraping plate 20.

[0027] When it is necessary to clean the glue on the lower end of the pressing plate 1, the rotation of the screw rod 17 is driven by the operation of the forward and reverse motor 16. The screw rod 17 will drive the sliding block to slide along the guide rod 18. In this process, first, the inclined surface of the glue scraping plate 20 will slide down along the inclined surface of the pressing plate 1, and the glue scraping plate 20 will stretch the spring telescopic rod 21 downward until the glue scraping strip 22 on the glue scraping plate 20 contacts the lower end surface of the pressing plate 1. Then, when the glue scraping plate 20 moves, it will drive the glue scraping strip 22 to scrape the glue on the lower end surface of the pressing plate 1. After scraping is completed, the glue scraping plate 20 moves away from below the pressing plate 1. At this time, the glue scraping plate 20 is located on the side of the pressing plate 1. Then, the resilience of the spring telescopic rod 21 will drive the glue scraping plate 20 to move upward and reset, so as to prevent the glue scraping plate 20 from affecting the normal pressing process of the pressing plate 1 on the cardboard. In summary, through the operation of the left and right glue scraping driving components, the glue scraping plate 20 and the glue scraping strip 22 can be conveniently driven to move left and right together. Therefore, the glue adhered to the lower end of the pressing plate 1 can be conveniently scraped and cleaned by the glue scraping strip 22 on the glue scraping plate 20, thereby preventing the pressing plate 1 from adhering glue and continuing to press the cardboard, so as to avoid the glue on the pressing plate 1 from contaminating the subsequent cardboard to be pressed, and better ensuring the quality of the pressing process of the cardboard.

[0028] As Figure 1 shown, in this embodiment, an electric cylinder 5 is fixed in the middle of the lower end of the mounting plate 4. The power end of the electric cylinder 5 is connected to the upper end of the lifting plate 12. Telescopic rods 6 are connected between both sides of the lower end of the mounting plate 4 and the lifting plate 12, and a telescopic ruler 7 is connected between the mounting plate 4 and the lifting plate 12.

[0029] When it is necessary to adjust the height of the pressing operation of the pressing plate 1, the telescopic movement of the electric cylinder 5 can conveniently drive the lifting plate 12, the concave frame 15 and the pressing plate 1 to move up and down. Moreover, through the telescopic movement of the telescopic shaft 6 and the telescopic ruler 7, it is beneficial to ensure the smoothness of the up and down movement of the pressing plate 1. Combined with the scale value on the telescopic ruler 7, it is beneficial to accurately adjust the height of the pressing plate 1 after up and down adjustment.

[0030] All technical features in this embodiment can be freely combined according to actual needs.

[0031] The above embodiment is a preferred implementation scheme of the present invention. In addition, there are other implementation methods. Any obvious replacement without departing from the concept of the technical solution is within the protection scope of the present invention.

Claims

1. A pressing structure for a box gluing machine, comprising a pressing plate (1) and a mounting plate (4). The mounting plate (4) is arranged above the pressing plate (1), and is characterized in that: A lifting plate (12) and a concave frame (15) are arranged between the mounting plate (4) and the pressing plate (1). The lifting plate (12) is located above the concave frame (15), and a pressure induction switch (8) and several spring return rods (13) are connected between the lifting plate (12) and the concave frame (15). A pressure warning lamp (14) is installed at the upper end of the lifting plate (12); A glue scraping plate (20) is arranged at the lower left of the pressing plate (1). Several glue scraping strips (22) are connected to the upper end of the glue scraping plate (20), and a left-right glue scraping driving assembly is arranged above the glue scraping plate (20).

2. The pressing structure of a box gluing machine according to claim 1, characterized in that: An electric cylinder (5) is fixed in the middle of the lower end of the mounting plate (4), and the power end of the electric cylinder (5) is connected to the upper end of the lifting plate (12).

3. The pressing structure of a box gluing machine according to claim 1, wherein: Expansion shafts (6) are connected between both sides of the lower end of the mounting plate (4) and the lifting plate (12), and an expansion ruler (7) is connected between the mounting plate (4) and the lifting plate (12).

4. The pressing structure of a box gluing machine according to claim 1, characterized in that: The lower ends of both left and right sides of the pressing plate (1) are inclined, the upper ends of both left and right sides of the glue scraping plate (20) are inclined, and the inclined surface of the glue scraping plate (20) fits with the inclined surface of the pressing plate (1).

5. The pressing structure of a box gluing machine according to claim 1, wherein: The left-right glue scraping driving assembly includes a guide rod (18), a sliding block (19), a positive and negative motor (16), a lead screw (17) and two spring expansion and contraction rods (21) distributed front and back. The guide rod (18) is fixed in the concave frame (15), and the sliding block (19) is slidably sleeved on the periphery of the guide rod (18).

6. The pressing structure of a box gluing machine according to claim 5, wherein: The positive and negative motor (16) is fixed on the right inner wall of the concave frame (15). One end of the lead screw (17) is connected to the power end of the positive and negative motor (16), and the other end of the lead screw (17) is rotatably connected to the left inner wall of the concave frame (15). The sliding block (19) is threadedly sleeved on the lead screw (17), and the spring expansion and contraction rods (21) are connected between the sliding block (19) and the glue scraping plate (20).

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