Square bottom paper bag making machine

Abstract

The present invention relates to the technical field of paper bag production, and specifically to a square bottom paper bag making machine, comprising a machine body, a glue coating box and a glue coating belt fixedly mounted on the machine body for coating paper with glue, a support roller for supporting the movement of paper and a driving disk for driving the movement of paper are rotatably mounted inside the machine body, and a glue-coating disk is rotatably mounted above the glue coating box and driven by a driving device inside the machine body, a limit groove for fixing the glue coating belt is provided on the glue-coating disk, a notch and a mounting groove are provided on the glue-coating disk, a detachable block is installed at the notch, a rotating ring for fixing the detachable block is installed inside the mounting groove, and the detachable block is connected to the rotating ring through a sliding block; a guide assembly for guiding the movement of the glue coating belt is provided on one side of the glue coating box. Through the above structure, the present invention can conveniently intermittently coat single sheets of paper passing through the glue coating device in sequence, and can avoid glue liquid being stained on the surface of the support roller under the glue coating device.

Description

Technical Field

[0001] The invention relates to the technical field of paper bag production, and in particular to a square bottom paper bag making machine. Background Art

[0002] A paper bag making machine is a device that processes paper into paper bags. A single-piece paper bag making machine is a type of bag making machine. In the process of making a single piece of paper into a square paper bag, the paper needs to be coated with glue to glue a whole piece of paper into a cylindrical structure. Since the single pieces of paper are arranged and continuously pass under the gluing device, there is a gap between each group of single pieces of paper. The gluing device in the existing equipment glues the paper through a gluing belt, but since the gluing belt is continuous in an annular shape, the paper cannot be coated intermittently during use, and it is easy for the glue to stick to the supporting feed roller under the gluing belt, which makes it easy for the back of the subsequent paper to stick to the supporting feed roller. Summary of the invention

[0003] Technical issues solved

[0004] In view of the above-mentioned shortcomings of the prior art, the present invention provides a square bottom paper bag making machine, which can effectively solve the problem that the gluing equipment of the bag making machine in the prior art cannot conveniently perform intermittent gluing when using a single piece of paper to make paper bags.

[0005] Technical Solution

[0006] To achieve the above objectives, the present invention is implemented through the following technical solutions:

[0007] The present invention provides a square bottom paper bag making machine, comprising a machine body, a glue coating box and a glue coating belt fixedly mounted on the machine body for coating glue on paper, a supporting roller for supporting the movement of paper and a driving disk for driving the movement of paper are rotatably mounted inside the machine body, and further comprising:

[0008] The glue-coating plate is rotatably mounted above the glue coating box and driven by a driving device inside the machine body. The glue-coating plate is provided with a limit groove for fixing the glue coating tape. The glue-coating plate is provided with a notch and a mounting groove. A detachable block is installed at the notch. A rotating ring for fixing the detachable block is installed inside the mounting groove. The detachable block is connected to the rotating ring through a sliding block.

[0009] A guide assembly for guiding the movement of the glue coating tape is provided on one side of the glue coating box, and a glue scraping member for scraping off excess glue on the surface of the glue coating tape is fixedly installed inside the glue coating box.

[0010] Furthermore, the adhesive tape comprises a fixing tape and a sticky tape, the sticky tape is attached to the outside of the fixing tape, a cavity is left between the fixing tape and the sticky tape, and a glue squeezing hole for discharging glue is provided on the sticky tape.

[0011] Furthermore, the cross-sectional projection shape of the adhesive-coated belt is mushroom-shaped, and elastic anti-slip protrusions are provided on both sides below the fixing belt.

[0012] Furthermore, a mounting plate is fixedly installed inside the glue coating box, and a regulating component for squeezing the glue coating tape and thus controlling the glue feeding amount is slidably installed on the mounting plate, and a glue opening for the glue coating plate to pass through is provided on the mounting plate.

[0013] Furthermore, the regulating component includes a bending rod and a threaded rod for driving the bending rod to move. The mounting plate is provided with a strip through hole for the bending rod to pass through. One end of the bending rod is slidably connected to the mounting plate, and the other end of the bending rod extends under the mounting plate and is rotatably installed with an extrusion wheel.

[0014] Furthermore, the glue scraper comprises a support rod, which is fixedly mounted above one side of the glue coating box, and the other end of the support rod faces the glue plate and is fixedly mounted with a glue scraper.

[0015] Furthermore, the support rod is an electric telescopic rod.

[0016] Furthermore, the rotating ring is rotatably connected to the glue-dipping plate, and the rotating ring is fixedly installed inside the mounting groove by bolts.

[0017] Furthermore, the guide assembly comprises a rubber extruding wheel and a limiting wheel, and the lowest ends of the rubber extruding wheel and the limiting wheel are located at the same horizontal height.

[0018] Furthermore, the driving device drives the glue-dipping plate to rotate via a belt.

[0019] Beneficial Effects

[0020] Compared with the known public technology, the technical solution provided by the present invention has the following beneficial effects:

[0021] The present invention provides a notch on the glue-coating plate and a detachable block that can be easily removed at the notch, and at the same time only the lowermost part of the glue-coating plate is immersed in the glue liquid inside the glue coating box, so that the glue coating tape can be intermittently coated with glue, and can avoid glue liquid remaining on the surface of the glue coating tape when it is not in contact with the paper and when it is in contact with the supporting roller below, and can avoid the glue liquid sticking to the supporting roller and causing the next sheet of paper to be stuck to the supporting roller when passing through the supporting roller. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the prior art descriptions are briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention, and for ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0023] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0024] Figure 2 It is a structural schematic diagram of another angle of the overall structure of the present invention;

[0025] Figure 3 It is a schematic diagram of the oblique upper structure of the present invention;

[0026] Figure 4 It is a structural schematic diagram of the guide assembly of the present invention being installed in cooperation with the side of the glue coating box;

[0027] Figure 5 It is an exploded view of the overall structure of the glue sticking tray of the present invention;

[0028] Figure 6 It is a cross-sectional view of the glue coating box of the present invention;

[0029] Figure 7 It is a schematic diagram of the cross-sectional structure of the adhesive tape of the present invention.

[0030] The numbers in the figure represent: 1. Machine body; 11. Support roller; 12. Drive disk; 2. Glue coating box; 201. Overflow port; 202. Feed port; 21. Mounting plate; 3. Glue coating tape; 301. Cavity; 31. Fixing tape; 32. Glue tape; 3201. Glue squeezing hole; 4. Glue disc; 401. Notch; 402. Mounting slot; 403. Limiting slot; 41. Fastening disc; 42. Rotating ring; 4201. Slide slot; 43. Removable block; 5. Glue scraper; 51. Support rod; 52. Glue scraper plate; 6. Adjustment assembly; 61. Bending rod; 62. Extrusion wheel; 63. Threaded rod; 7. Guide assembly; 71. Glue squeezing wheel; 72. Limiting wheel; 8. Paper. DETAILED DESCRIPTION

[0031] In order to make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the technical solution in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0032] The present invention will be further described below in conjunction with the embodiments.

[0033] Embodiment: A square bottom paper bag making machine, such as Figure 1-Figure 7As shown, it includes a body 1, a glue box 2 fixedly mounted on the body 1 for gluing paper 8, and a glue tape 3, the glue tape 3 includes a fixing tape 31 and a sticking tape 32, the sticking tape 32 is attached to the outside of the fixing tape 31, a cavity 301 is left between the fixing tape 31 and the sticking tape 32, and the sticking tape 32 is provided with a glue squeezing hole 3201 for discharging glue, and the cross-sectional projection shape of the glue tape 3 is a mushroom shape (refer to Figure 7 ), elastic anti-slip protrusions are provided on both sides below the fixing belt 31. In the embodiment, a layer of adhesive tape 32 is provided on the surface of the fixing belt 31 and a cavity 301 is left between the fixing belt 31 and the adhesive tape 32. When the adhesive disc 4 drives the fixing belt 31 and the adhesive tape 32 to rotate inside the glue coating box 2, the adhesive tape 32 surface at the bottom and outside of the adhesive disc 4 will contact with the glue in the glue coating box 2 and adhere to the surface of the adhesive tape 32 (part of the glue will be squeezed out from the glue extrusion hole 320 1 enters the cavity 301), and then as the glue disc 4 continues to rotate, the glue tape 32 with glue attached to the surface will move to the outside of the glue squeezing wheel 71 and the limiting wheel 72, so that the glue attached to the surface of the glue tape 32 can be fully applied to the paper 8. At the same time, when the glue tape 32 and the fixed belt 31 pass through the glue squeezing wheel 71, the fixed belt 31 and the glue tape 32 will be squeezed to squeeze the glue inside the cavity 301 out from the glue squeezing hole 3201 and apply it to the paper.

[0034] An overflow port 201 and a feed port 202 are provided on the sides of the glue coating box 2, and the glue liquid enters the glue coating box 2 from the feed port 202 and overflows from the overflow port 201, so that the glue liquid level inside the glue coating box 2 can be guaranteed at all times, thereby making the liquid level higher than the lowest point that the glue plate 4 can reach.

[0035] A mounting plate 21 is fixedly installed inside the glue coating box 2, and a regulating component 6 for squeezing the glue coating tape 3 and thus controlling the glue feeding amount is slidably installed on the mounting plate 21. A glue opening for the glue disc 4 to pass through is provided on the mounting plate 21. The regulating component 6 includes a bending rod 61 and a threaded rod 63 for driving the bending rod 61 to move. A bar-shaped through hole for the bending rod 61 to pass through is provided on the mounting plate 21. One end of the bending rod 61 is slidably connected to the mounting plate 21, and the other end of the bending rod 61 extends into the bottom of the mounting plate 21 and is rotatably installed with an extrusion wheel 62. In the embodiment, the sliding adjustment can be made on the mounting plate 21 by setting The movable bending rod 61 is provided with an extrusion wheel 62 which can squeeze the adhesive tape 32 and the fixing tape 31 at one end of the bending rod 61 close to the adhesive plate 4. The adhesive tape 32 can be conveniently squeezed to reduce the space of the cavity 301 when the adhesive tape 32 and the fixing tape 31 are immersed in the adhesive liquid. Then, when the adhesive tape 32 continues to move, it is reset due to its own elasticity. During the reset process of the adhesive tape 32, the adhesive liquid can be conveniently absorbed into the cavity 301. By adjusting the position of the bending rod 61, the degree to which the extrusion wheel 62 squeezes the adhesive tape 32 can be conveniently adjusted to thereby control the adhesive liquid entering the cavity 301.

[0036] A support roller 11 for supporting the movement of the paper 8 and a drive disk 12 for driving the movement of the paper 8 are rotatably installed inside the body 1. The paper is placed between the support roller 11 and the drive disk 12. The drive disk 12 is driven by a driving device inside the body 1. The drive disk 12 rotates coaxially with the rubber extrusion wheel 71.

[0037] The invention also includes a glue plate 4, which is rotatably mounted above the glue coating box 2 and driven by a driving device inside the machine body 1. The driving device drives the glue plate 4 to rotate through a belt. The glue plate 4 is provided with a limiting groove 403 for fixing the glue coating belt 3. The glue plate 4 is provided with a notch 401 and a mounting groove 402. A detachable block 43 is installed at the notch 401. A rotating ring 42 for fixing the detachable block 43 is installed inside the mounting groove 402. The detachable block 43 is connected to the rotating ring 42 through a sliding block. A stopper 403 for the sliding block to slide into is provided on the rotating ring 42. Slide groove 4201, the rotating ring 42 is rotatably connected with the glue plate 4, and the rotating ring 42 is fixedly installed in the installation groove 402 by bolts; in this embodiment, the outer side of the rotating ring 42 is provided with a fastening plate 41 that seals the installation groove 402, and the fastening plate 41 is connected and installed with the glue plate 4 by bolts, which can facilitate the sealing of the bottom of the rotating ring 42 and the detachable block 43 in the installation groove 402, and can prevent the glue from dripping into the installation groove 402 during the rotation of the glue plate 4, affecting the disassembly and installation of the rotating ring 42 and the detachable block 43.

[0038] A guide assembly 7 for guiding the movement of the glue coating tape 3 is provided on one side of the glue coating box 2. The guide assembly 7 includes a glue squeezing wheel 71 and a limiting wheel 72. The lowest ends of the glue squeezing wheel 71 and the limiting wheel 72 are located at the same horizontal height, which can conveniently cooperate to horizontally unfold the glue coating tape 3 on the paper 8, so that the paper 8 and the glue coating tape 3 have a certain period of contact, and while squeezing out the glue inside the glue coating tape 3, the glue can also be flattened and smeared on the paper 8.

[0039] A scraper 5 for scraping off excess glue on the surface of the glue coating tape 3 is fixedly installed inside the glue coating box 2. The scraper 5 includes a support rod 51. The support rod 51 is fixedly installed on the upper side of the glue coating box 2. The other end of the support rod 51 faces the glue disc 4 and is fixedly installed with a scraper plate 52. The support rod 51 is an electric telescopic rod. In the embodiment, the scraper plate 52 is driven to move by setting the support rod 51 with an adjustable distance, so that the amount of glue scraped off the surface of the glue coating tape 3 can be conveniently adjusted, and the position of the scraper plate 52 can be adjusted according to the bonding requirements of different papers 8.

[0040] In this embodiment, when the device of the present invention is used, when the paper for making the square bottom paper bag moves from the cutting device to the bottom of the glue coating box 2, it continues to move under the drive of the driving disk 12, and one side of the paper 8 passes between the glue squeezing wheel 71 and the supporting roller 11, and the glue squeezing wheel 71 squeezes out the glue in the cavity 301 and smears it on the paper 8, so that the paper 8 can be easily glued; because the glue-coating disk 4 is provided with a notch 401, when the glue coating belt 3 rotates to the inside of the glue coating box 2, the glue coating belt 3 located outside the notch 401 will not be attached with glue, and the glue presented on the glue coating belt 3 is separated in sections, and these separated gaps are reserved for the process in which the glue squeezing wheel 71 does not contact the paper 8. Only when the paper 8 passes under the glue squeezing wheel 71, the surface of the glue coating belt 3 will be attached with glue, so that intermittent gluing can be achieved, and it can be avoided that the glue falls on the supporting roller 11 and is difficult to clean.

[0041] It should be noted that by squeezing glue from the glue squeezing hole 3201 to coat the paper 8, the glue can be more evenly applied to the paper 8, which can avoid tearing when the paper 8 is adhered into a cylindrical structure and then stretched and folded into a square, thereby reducing the production of defective products.

[0042] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements will not cause the essence of the corresponding technical solutions to deviate from the protection scope of the technical solutions of the embodiments of the present invention.

Claims

1. A square bottom paper bag making machine, comprising a machine body (1), a glue coating box (2) and a glue coating belt (3) fixedly mounted on the machine body (1) for coating glue on paper (8), wherein a support roller (11) for supporting the movement of the paper (8) and a drive disk (12) for driving the movement of the paper (8) are rotatably mounted inside the machine body (1), characterized in that: Also includes: A glue-coating plate (4) is rotatably mounted above the glue coating box (2) and driven by a driving device inside the machine body (1); a limiting groove (403) for fixing the glue coating tape (3) is provided on the glue-coating plate (4); a notch (401) and a mounting groove (402) are provided on the glue-coating plate (4); a detachable block (43) is mounted at the notch (401); a rotating ring (42) for fixing the detachable block (43) is mounted inside the mounting groove (402); and the detachable block (43) is connected to the rotating ring (42) via a sliding block; A guide assembly (7) for guiding the movement of the glue coating tape (3) is provided on one side of the glue coating box (2); a glue scraping member (5) for scraping off excess glue on the surface of the glue coating tape (3) is fixedly installed inside the glue coating box (2); the glue coating tape (3) comprises a fixing tape (31) and a glue sticking tape (32); the glue sticking tape (32) is attached to the outside of the fixing tape (31); a cavity (301) is left between the fixing tape (31) and the glue sticking tape (32); and a glue squeezing hole (3201) for discharging glue is provided on the glue sticking tape (32).

2. The square bottom paper bag making machine according to claim 1, characterized in that: The cross-sectional projection shape of the adhesive tape (3) is mushroom-shaped, and elastic anti-slip protrusions are provided on both sides below the fixing tape (31).

3. The square bottom paper bag making machine according to claim 1, characterized in that: A mounting plate (21) is fixedly mounted inside the glue coating box (2), a regulating component (6) for squeezing the glue coating tape (3) and thus controlling the glue feeding amount is slidably mounted on the mounting plate (21), and a glue sticking opening for the glue sticking plate (4) to pass through is provided on the mounting plate (21).

4. The square bottom paper bag making machine according to claim 3, characterized in that: The regulating assembly (6) comprises a bending rod (61) and a threaded rod (63) for driving the bending rod (61) to move; the mounting plate (21) is provided with a strip-shaped through hole for the bending rod (61) to pass through; one end of the bending rod (61) is slidably connected to the mounting plate (21); the other end of the bending rod (61) extends below the mounting plate (21) and is rotatably mounted with an extrusion wheel (62).

5. The square bottom paper bag making machine according to claim 1, characterized in that: The glue scraping member (5) comprises a support rod (51), the support rod (51) being fixedly mounted above one side of the glue coating box (2), and the other end of the support rod (51) facing the glue plate (4) and being fixedly mounted with a glue scraping plate (52).

6. The square bottom paper bag making machine according to claim 5, characterized in that: The support rod (51) is an electric telescopic rod.

7. The square bottom paper bag making machine according to claim 1, characterized in that: The rotating ring (42) is rotatably connected to the glue-dipping plate (4), and the rotating ring (42) is fixedly mounted inside the mounting groove (402) by means of bolts.

8. The square bottom paper bag making machine according to claim 1, characterized in that: The guide assembly (7) comprises a rubber extruding wheel (71) and a limiting wheel (72), wherein the lowest ends of the rubber extruding wheel (71) and the limiting wheel (72) are located at the same horizontal height.

9. The square bottom paper bag making machine according to claim 1, characterized in that: The driving device drives the glue-dipping plate (4) to rotate via a belt.

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