A paper bag packaging processing compaction and opening device

Abstract

The utility model discloses a kind of compaction trepanning devices for paper bag packaging processing, including bottom plate, the surface of bottom plate is provided with knife groove, the top of knife groove is provided with trepanning cutter, the two sides of trepanning cutter are provided with material pressing roller, the top of trepanning cutter is provided with movable plate, the top of movable plate is provided with adjusting mechanism for adjusting the spacing between two trepanning cutters, and transmission mechanism for driving movable plate and trepanning cutter to move up and down, the utility model is rotated by first motor simultaneously drive cam and two material pressing rollers, wherein cam rotation drives trepanning cutter reciprocating lifting, to carry out continuous trepanning operation on kraft paper, two material pressing rollers drive kraft paper to move while pressing kraft paper, prevent its misplacement, ensure the accuracy of hole position, and improve paper bag processing efficiency.

Description

Technical Field

[0001] This utility model relates to the field of paper bag packaging processing, and in particular to a compaction and perforation device for paper bag packaging processing. Background Technology

[0002] Commonly used plastic bags are made of polyethylene, which is made from petroleum, a scarce energy source. In contrast, paper bags are made from trees, a renewable resource that is biodegradable and recyclable. Depending on their intended use, paper bags can be made from materials such as kraft paper, coated paper, or white cardboard. Perforation is a key technology for the functionality of paper bags, directly affecting the user experience. Based on the function of the holes, they can be categorized as drawstring holes, ventilation holes, hanging holes, and easy-tear holes.

[0003] Chinese patent CN221623175U discloses a compaction and perforation device for paper bag packaging. The device uses a third electric push rod to push a limiting plate to adjust and limit the paper bag. The push plate moves the paper bag horizontally to the perforation position. The second electric push rod, in conjunction with a stop block, adjusts the upper and lower perforation positions of the paper bag. At the same time, the perforation mechanism adjusts the left and right perforation spacing. This eliminates the need for manual positioning of the perforation position during the perforation process, avoiding product quality problems caused by inaccurate positioning.

[0004] In the above scheme, the width of the paper bag is first limited by two limiting plates, and then the length of the paper bag is limited by abutment and push plate. Finally, the motor drives the hole-opening needle to descend and perform the hole-opening operation. At the same time, the paper bag also needs to be manually loaded and unloaded by personnel. The paper bag hole-opening is highly dependent on manual labor, resulting in low efficiency and difficulty in continuous operation. To address this issue, a compaction hole-opening device for paper bag packaging processing is proposed to solve the above problems. Utility Model Content

[0005] The purpose of this utility model is to provide a compaction and perforation device for paper bag packaging processing, so as to solve the problems mentioned in the background art, which are that paper bag perforation is highly dependent on manual labor, resulting in low efficiency and difficulty in continuous operation. The technical solution of this utility model provides a solution that is significantly different from the prior art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: A compaction and perforation device for paper bag packaging processing includes a base plate with a knife groove on its surface. A perforation knife is positioned above the knife groove, and pressure rollers are positioned on both sides of the perforation knife. A movable plate is positioned above the perforation knife, and an adjustment mechanism for adjusting the distance between the two perforation knives and a transmission mechanism for driving the movable plate and the perforation knife to move up and down are positioned above the movable plate. A drive mechanism that provides power to the transmission mechanism and the two pressure rollers is positioned on the upper side of the base plate. The drive mechanism is connected to the transmission mechanism and the two pressure rollers through a pulley assembly.

[0007] Preferably, the two pressing rollers have a feeding position and a discharging position on their sides, respectively. A guide plate is provided on the bottom plate of the feeding position, and a bracket is provided between the two pressing rollers. The bracket is fixed on the bottom plate, and a positioning groove is provided inside the bracket.

[0008] Preferably, the movable plate is located between two supports, with both ends of the movable plate passing through positioning grooves inside the two supports respectively, and both ends of the movable plate are provided with limit blocks. The limit blocks are provided with guide posts inside, and the guide posts are installed on one side of the supports, with springs sleeved on the guide posts.

[0009] Preferably, the adjustment mechanism includes a second motor, a driving gear, a driven gear, and a lead screw. The second motor is fixed on the top of the movable plate. The driving gear is connected to the shaft of the second motor. The driving gear and the driven gear mesh. The lead screw is a bidirectional lead screw, which is installed below the movable plate. The driven gear is installed in the middle of the lead screw. The upper ends of the two hole-opening cutters are each provided with a slider. The two sliders are respectively installed on the left-hand threaded wall and the right-hand threaded wall of the lead screw.

[0010] Preferably, the transmission mechanism includes a cam, a rotating shaft, and a roller. The cam is mounted on the rotating shaft, and the two ends of the rotating shaft are respectively connected to two support bearings. The roller is mounted on the movable plate, and the curved surfaces on the cam and the roller are in contact.

[0011] Preferably, the drive mechanism is a first motor, which is connected to one end of the rotating shaft. The pulley assembly consists of a drive pulley and two driven pulleys connected by a belt. The drive pulley is mounted on the rotating shaft, and the two driven pulleys are respectively connected to the shafts of two pressure rollers.

[0012] Compared with the prior art, the beneficial effects of this utility model are: This invention involves inserting one end of a roll of kraft paper under two pressure rollers along a guide plate. A first motor simultaneously drives a cam and the two pressure rollers to rotate. The two pressure rollers move the kraft paper and press it down to prevent misalignment. At the same time, the rotation of the cam drives the perforating knife to reciprocate up and down. When the perforating knife descends, it performs the perforation operation on the kraft paper. This reduces the reliance on manual labor, realizes continuous automated perforation operation, and improves the efficiency of subsequent paper bag production. Attached Figure Description

[0013] Figure 1 A schematic diagram of the main structure of a compaction and perforation device for paper bag packaging processing; Figure 2 A schematic diagram of the pulley assembly in a compaction and perforation device for paper bag packaging processing; Figure 3 A schematic diagram of the perforating knife in a compaction and perforation device for paper bag packaging.

[0014] In the diagram: 1. Base plate; 101. Bracket; 1011. Positioning groove; 102. Guide plate; 103. Pressure roller; 104. Knife groove; 2. First motor; 3. Cam; 301. Rotating shaft; 302. Roller; 4. Movable plate; 401. Limit block; 402. Spring; 403. Guide post; 5. Second motor; 501. Drive gear; 502. Driven gear; 503. Lead screw; 6. Pulley assembly; 7. Slider; 701. Hole-opening knife. Detailed Implementation

[0015] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, features defined with "first," "second," etc., may explicitly or implicitly include one or more of that feature. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0016] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0017] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0018] Please see Figure 1-3In this utility model, a compaction and perforation device for paper bag packaging processing includes a base plate 1. A knife groove 104 is provided on the surface of the base plate 1. A perforation knife 701 is provided above the knife groove 104. Pressing rollers 103 are provided on both sides of the perforation knife 701. A movable plate 4 is provided above the perforation knife 701. A second motor 5 and a cam 3 are provided above the movable plate 4. A first motor 2 is provided on the upper side of the base plate 1.

[0019] The two pressing rollers 103 have a feeding position and a discharging position on their sides, respectively. A guide plate 102 is provided on the bottom plate 1 of the feeding position. A bracket 101 is provided between the two pressing rollers 103. The bracket 101 is fixed on the bottom plate 1. A positioning groove 1011 is provided inside the bracket 101.

[0020] The movable plate 4 is located between two supports 101. Both ends of the movable plate 4 pass through the positioning grooves 1011 inside the two supports 101 respectively. Both ends of the movable plate 4 are provided with limit blocks 401. The limit blocks 401 are provided with guide posts 403 inside. The guide posts 403 are installed on one side of the support 101 and springs 402 are sleeved on the guide posts 403.

[0021] Example 1: Please refer to Figure 1-3 In this embodiment of the utility model, a compaction and hole-opening device for paper bag packaging processing is provided. The second motor 5 is fixed on the upper part of the movable plate 4. The driving gear 501 is connected to the shaft of the second motor 5. The driving gear 501 and the driven gear 502 mesh. The lead screw 503 is a bidirectional lead screw. The lead screw 503 is installed below the movable plate 4. The driven gear 502 is installed in the middle of the lead screw 503. The upper ends of the two hole-opening cutters 701 are provided with sliders 7. The two sliders 7 are respectively installed on the left-hand threaded wall and the right-hand threaded wall of the lead screw 503.

[0022] After the second motor 5 starts, it drives the driving gear 501, driven gear 502 and lead screw 503 to rotate in sequence, thereby controlling the two drilling tools 701 to move closer or further apart by controlling the two sliders 7.

[0023] Cam 3 is mounted on rotating shaft 301. Both ends of rotating shaft 301 are connected to bearings of two brackets 101 respectively. Roller 302 is mounted on top of movable plate 4. The curved surfaces on cam 3 and roller 302 are in contact. First motor 2 is connected to one end of rotating shaft 301. Pulley assembly 6 consists of a driving wheel and two driven wheels connected by a belt. The driving wheel is mounted on rotating shaft 301. The two driven wheels are connected to the shafts of two pressure rollers 103 respectively.

[0024] After the operator inserts one end of the roll of kraft paper under the two pressing rollers 103 along the guide plate 102, the first motor 2 simultaneously drives the cam 3 and the two pressing rollers 103 to rotate. The two pressing rollers 103 move the kraft paper and press it down to prevent it from being misaligned. At the same time, the rotation of the cam 3 drives the movable plate 4 and the perforating knife 701 to reciprocate up and down. When the perforating knife 701 descends, it performs the perforation operation on the kraft paper, thereby reducing the dependence on manual labor and realizing continuous automated perforation operation, which in turn improves the efficiency of subsequent paper bag production.

[0025] The working principle of this utility model is as follows: the first motor 2 drives the cam 3 and the two pressing rollers 103 to rotate simultaneously. The rotation of the cam 3 drives the hole-opening knife 701 to reciprocate and lift, thereby performing continuous hole-opening operation on the kraft paper. The two pressing rollers 103 move the kraft paper while pressing it down to prevent misalignment, ensuring the accuracy of the hole position and improving the paper bag processing efficiency.

[0026] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0027] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A compaction and perforation device for paper bag packaging processing, comprising a base plate (1), wherein a knife groove (104) is provided on the surface of the base plate (1), characterized in that: A punching knife (701) is provided above the knife groove (104). A pressing roller (103) is provided on both sides of the punching knife (701). A movable plate (4) is provided above the punching knife (701). An adjustment mechanism for adjusting the distance between the two punching knives (701) is provided above the movable plate (4), as well as a transmission mechanism for driving the movable plate (4) and the punching knife (701) to move up and down. A drive mechanism for providing power to the transmission mechanism and the two pressing rollers (103) is provided on the upper side of the base plate (1). The drive mechanism is connected to the transmission mechanism and the two pressing rollers (103) through a pulley assembly (6).

2. The compaction and perforation device for paper bag packaging processing according to claim 1, characterized in that: The two pressing rollers (103) have a feeding position and a discharging position on their sides respectively. A guide plate (102) is provided on the bottom plate (1) of the feeding position. A bracket (101) is provided between the two pressing rollers (103). The bracket (101) is fixed on the bottom plate (1). A positioning groove (1011) is provided inside the bracket (101).

3. The compaction and perforation device for paper bag packaging processing according to claim 1, characterized in that: The movable plate (4) is located between two supports (101). The two ends of the movable plate (4) pass through the positioning grooves (1011) inside the two supports (101) respectively. Both ends of the movable plate (4) are provided with limit blocks (401). The limit blocks (401) are provided with guide posts (403). The guide posts (403) are installed on one side of the supports (101), and springs (402) are sleeved on the guide posts (403).

4. The compaction and perforation device for paper bag packaging processing according to claim 1, characterized in that: The adjustment mechanism includes a second motor (5), a driving gear (501), a driven gear (502), and a lead screw (503). The second motor (5) is fixed on the upper part of the movable plate (4). The driving gear (501) is connected to the shaft of the second motor (5). The driving gear (501) and the driven gear (502) mesh. The lead screw (503) is a bidirectional lead screw. The lead screw (503) is installed below the movable plate (4). The driven gear (502) is installed in the middle of the lead screw (503). The upper ends of the two hole cutters (701) are provided with sliders (7). The two sliders (7) are respectively installed on the left-hand threaded wall and the right-hand threaded wall of the lead screw (503).

5. The compaction and perforation device for paper bag packaging processing according to claim 1, characterized in that: The transmission mechanism includes a cam (3), a rotating shaft (301) and a roller (302). The cam (3) is mounted on the rotating shaft (301). The two ends of the rotating shaft (301) are respectively connected to the bearings of two brackets (101). The roller (302) is mounted on the upper part of the movable plate (4). The curved surfaces on the cam (3) and the roller (302) are in contact.

6. The compaction and perforation device for paper bag packaging processing according to claim 1, characterized in that: The driving mechanism is a first motor (2), which is connected to one end of the rotating shaft (301). The pulley assembly (6) consists of a driving wheel and two driven wheels connected by a belt. The driving wheel is mounted on the rotating shaft (301), and the two driven wheels are respectively connected to the shafts of two pressing rollers (103).

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