An automatic creasing device for paper bags

Abstract

This utility model discloses an automatic creasing device for paper bags, including a frame. A creasing auxiliary mechanism is provided at the upper end of the frame. The creasing auxiliary mechanism includes a fixed frame fixedly connected to the upper end of the frame. A support base is fixedly connected to one end of the fixed frame. A sliding rod is slidably connected inside the support base. A mounting base is fixedly connected to the lower end of the sliding rod. A contact groove is fixedly connected to the upper end of the mounting base near the sliding rod. The automatic creasing device for paper bags of this utility model, by rotating a transmission shaft, causes an eccentric disk to rotate. This eccentric disk, through its eccentric action, pushes the mounting base downwards, facilitating the downward movement of the creasing strip. This allows the creasing strip to creasing the paper. Furthermore, the eccentric disk, through its eccentric action, pushes the creasing strip repeatedly up and down, and the creasing strip moves rapidly up and down under the rotation of the eccentric disk.

Description

Technical Field

[0001] This utility model relates to the field of paper bag creasing technology, and in particular to an automatic creasing device for paper bags. Background Technology

[0002] Paper bags are tough, strong, and have stable uniformity, thickness, and color. In accordance with relevant national regulations restricting the use of plastic bags in supermarkets, and the trend of promoting the use of environmentally friendly paper bags in foreign countries such as Europe and the United States, plastic bags will be replaced by environmentally friendly paper bags to strictly control plastic pollution. The market prospects for white kraft paper are promising. It is made of 100% pure wood pulp, is environmentally friendly and non-toxic, and can be recycled. White kraft paper has excellent toughness and does not require lamination. It is widely used to make environmentally friendly clothing tote bags, high-end shopping bags, etc. Traditional paper bag creasing devices have some drawbacks. During the paper bag creasing process, some creasing machines use hydraulic cylinders to drive the creasing strip up and down. Since the hydraulic cylinder must be fully reset after each creasing before the next pressing operation can be performed, this intermittent action seriously affects production efficiency and causes inconvenience in actual use. Utility Model Content

[0003] The main objective of this invention is to provide an automatic creasing device for paper bags, which can effectively solve the problems in the background art.

[0004] To achieve the above objectives, the technical solution adopted by this utility model is as follows: An automatic creasing device for paper bags includes a frame, with a creasing auxiliary mechanism at the upper end of the frame. The creasing auxiliary mechanism includes a fixed frame fixedly connected to the upper end of the frame, a support base fixedly connected to one end of the fixed frame, a sliding rod slidably connected inside the support base, a mounting base fixedly connected to the lower end of the sliding rod, a contact groove fixedly connected to the upper end of the mounting base near the sliding rod, an eccentric disc drivenly connected to the inner side of the contact groove, a drive shaft fixedly connected to the inner side of the eccentric disc, a spring sleeved on the outer side of the sliding rod near the upper side of the support base, a fixed plate fixedly connected to the upper end of the sliding rod, and a creasing strip installed at the lower end of the mounting base.

[0005] Preferably, a support plate is fixedly connected to the other end of the fixed frame, a motor is fixedly connected to the upper end of the support plate, and a connecting frame is movably connected to the outer side of the transmission shaft near the eccentric disc.

[0006] Preferably, the drive shaft passes through the interior of the fixed frame, the drive shaft is movably connected to the fixed frame, and one end of the drive shaft is mounted at one end of the motor.

[0007] Preferably, the lower end of the spring is fixedly connected to the upper end of the support base, and the upper end of the spring is fixedly connected to the lower end of the fixing plate near the outer side of the sliding rod.

[0008] Preferably, the upper end of the connecting frame is fixedly connected to the lower end of the support base, and the center lines of the drive shaft and the eccentric disk are not on the same straight line.

[0009] Preferably, a support base is fixedly connected to the lower end of the frame, a winding wheel is installed on the inner side of the frame, an auxiliary wheel is installed on the upper side of the inner side of the frame near the winding wheel, a drive wheel is installed on the front side of the inner side of the frame near the winding wheel, an auxiliary frame is fixedly connected to the upper side of the inner side of the frame near the drive wheel, and the indentation strip is located on the front side of the drive wheel.

[0010] Compared with the prior art, the present invention has the following beneficial effects: By rotating the drive shaft, which in turn drives the eccentric disc to rotate, the eccentric disc pushes the mounting base downwards using its eccentric action. This facilitates the downward movement of the creasing strip, allowing it to creasing the paper. The eccentric disc also pushes the creasing strip up and down repeatedly using its eccentric action, and the eccentric disc rotates rapidly up and down to move the creasing strip. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the overall structure of an automatic creasing device for paper bags according to the present invention; Figure 2 This is a schematic diagram of the creasing auxiliary mechanism of an automatic creasing device for paper bags according to this utility model; Figure 3 This is a partial structural diagram of the indentation auxiliary mechanism of an automatic indentation device for paper bags according to this utility model; Figure 4 This is an enlarged structural diagram of part A of the automatic creasing device for paper bags according to this utility model.

[0012] In the diagram: 1. Frame; 2. Support base; 3. Winding wheel; 4. Auxiliary wheel; 5. Drive wheel; 6. Auxiliary frame; 7. Indentation auxiliary mechanism; 71. Fixing frame; 72. Support base; 73. Sliding rod; 74. Mounting base; 75. Contact slot; 76. Eccentric disc; 77. Drive shaft; 78. Spring; 79. Fixing plate; 710. Indentation strip; 711. Support plate; 712. Motor; 713. Connecting frame. Detailed Implementation

[0013] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0014] like Figure 1-4As shown, an automatic creasing device for paper bags includes a frame 1. A creasing auxiliary mechanism 7 is provided at the upper end of the frame 1. The creasing auxiliary mechanism 7 includes a fixed frame 71 fixedly connected to the upper end of the frame 1. A support base 72 is fixedly connected to one end of the fixed frame 71. A sliding rod 73 is slidably connected inside the support base 72. A mounting base 74 is fixedly connected to the lower end of the sliding rod 73. A contact groove 75 is fixedly connected to the upper end of the mounting base 74 near the sliding rod 73. An eccentric disk 76 is drivenly connected to the inner side of the contact groove 75. A drive shaft 77 is fixedly connected to the inner side of the eccentric disk 76. A spring 78 is sleeved on the outer side of the sliding rod 73 near the upper side of the support base 72. A fixed plate 79 is fixedly connected to the upper end of the sliding rod 73. A creasing strip 710 is installed at the lower end of the mounting base 74.

[0015] In this embodiment, a support plate 711 is fixedly connected to the other end of the fixed frame 71, and a motor 712 is fixedly connected to the upper end of the support plate 711. A connecting frame 713 is movably connected to the outer side of the transmission shaft 77 near the eccentric disk 76. The transmission shaft 77 passes through the interior of the fixed frame 71 and is movably connected to the fixed frame 71. One end of the transmission shaft 77 is installed at one end of the motor 712. The lower end of the spring 78 is fixedly connected to the upper end of the support seat 72. The upper end of the spring 78 is fixedly connected to the lower end of the fixed plate 79 near the outer side of the sliding rod 73. The upper end of the connecting frame 713 is fixedly connected to the lower end of the support seat 72. The axis of the transmission shaft 77 and the eccentric disk 76 are not on the same straight line.

[0016] Specifically, starting the motor 712 causes the drive shaft 77 to rotate, which in turn causes the eccentric disk 76 to rotate. The eccentric disk 76, through its eccentric action, pushes the contact groove 75 downwards, causing the mounting base 74 to move downwards. This, in turn, causes the crease strip 710 to move downwards, and the mounting base 74 also causes the sliding rod 73 to move downwards. The sliding rod 73 then compresses the spring 78 via the fixing plate 79, allowing the crease strip 710 to crease the paper. Finally, the eccentric disk 76 rotates again, causing the spring 78 to pull the sliding rod 73 upwards, ensuring that the contact groove 75 remains in contact. When the eccentric disc 76 is rotated, it causes the crease strip 710 to move up and down repeatedly due to its eccentric action. The crease strip 710 moves up and down rapidly under the rotation of the eccentric disc 76. By rotating the transmission shaft 77, the eccentric disc 76 is driven to rotate, which causes the eccentric disc 76 to push the mounting base 74 downward with its eccentric action. This facilitates the downward pushing of the crease strip 710, thereby causing the crease strip 710 to crease the paper. The eccentric disc 76 also causes the crease strip 710 to move up and down repeatedly due to its eccentric action, and the crease strip 710 moves up and down rapidly under the rotation of the eccentric disc 76.

[0017] In this embodiment, a support base 2 is fixedly connected to the lower end of the frame 1, a winding wheel 3 is installed on the inner side of the frame 1, an auxiliary wheel 4 is installed on the upper side of the inner side of the frame 1 near the winding wheel 3, a drive wheel 5 is installed on the inner side of the frame 1 near the front side of the winding wheel 3, an auxiliary frame 6 is fixedly connected to the upper side of the inner side of the frame 1 near the drive wheel 5, and an indentation strip 710 is located on the front side of the drive wheel 5.

[0018] Specifically, the paper of the paper bag is wound around the outside of the winding wheel 3, and then the paper is rolled out from the outside of the auxiliary wheel 4, and the paper is pulled onto the drive wheel 5, and the auxiliary frame 6 is pressed on top of the paper, so that the paper and the drive wheel 5 come into contact with each other, and then the drive wheel 5 is started, so that the drive wheel 5 drives the paper to move.

[0019] Working principle: In use, the worker first winds the paper of the paper bag around the outside of the winding wheel 3, then winds the paper out from the outside of the auxiliary wheel 4, and pulls the paper onto the drive wheel 5, with the auxiliary frame 6 pressing on top of the paper, so that the paper and the drive wheel 5 come into contact. Then, the drive wheel 5 is started, causing the drive wheel 5 to move the paper. Then, the motor 712 is started, causing the motor 712 to drive the transmission shaft 77 to rotate, and the transmission shaft 77 to drive the eccentric disk 76 to rotate. In turn, the eccentric disk 76 pushes the contact groove 75 downward by its eccentric action, thereby moving the mounting base 74 downward. The mounting base 74 moves the embossing strip 710 downward, and the mounting base 74 moves the sliding rod 73 downward. The sliding rod 73 compresses the spring 78 through the fixing plate 79, so that the embossing strip 710 can be aligned with the contact groove 75. The paper is creasing, and the eccentric disk 76 rotates again, causing the spring 78 to pull the sliding rod 73 upward. This ensures that the contact slot 75 is always in contact with the eccentric disk 76, which in turn causes the eccentric disk 76 to push the creasing strip 710 up and down repeatedly. Under the rotation of the eccentric disk 76, the creasing strip 710 moves up and down rapidly. By rotating the drive shaft 77, the eccentric disk 76 is driven to rotate, which in turn causes the eccentric disk 76 to push the mounting base 74 downward. This facilitates the downward pushing of the creasing strip 710, allowing the creasing strip 710 to creasing the paper. The eccentric disk 76, with its eccentric effect, pushes the creasing strip 710 up and down repeatedly, and under the rotation of the eccentric disk 76, the creasing strip 710 moves up and down rapidly.

[0020] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. An automatic creasing device for paper bags, comprising a frame (1), characterized in that: The upper end of the frame (1) is provided with an indentation auxiliary mechanism (7). The indentation auxiliary mechanism (7) includes a fixed frame (71) fixedly connected to the upper end of the frame (1). One end of the fixed frame (71) is fixedly connected to a support base (72). A sliding rod (73) is slidably connected inside the support base (72). A mounting base (74) is fixedly connected to the lower end of the sliding rod (73). A contact groove (75) is fixedly connected to the upper end of the mounting base (74) near the sliding rod (73). An eccentric disk (76) is driven to the inner side of the contact groove (75). A drive shaft (77) is fixedly connected to the inner side of the eccentric disk (76). A spring (78) is sleeved on the outer side of the sliding rod (73) near the upper side of the support base (72). A fixed plate (79) is fixedly connected to the upper end of the sliding rod (73). An indentation strip (710) is installed at the lower end of the mounting base (74).

2. An automatic creasing device for paper bags according to claim 1, characterized in that: The other end of the fixed frame (71) is fixedly connected to a support plate (711), the upper end of the support plate (711) is fixedly connected to a motor (712), and the outer side of the transmission shaft (77) near the eccentric disk (76) is movably connected to a connecting frame (713).

3. An automatic creasing device for paper bags according to claim 2, characterized in that: The drive shaft (77) passes through the interior of the fixed frame (71), and the drive shaft (77) is movably connected to the fixed frame (71). One end of the drive shaft (77) is installed at one end of the motor (712).

4. An automatic creasing apparatus for paper bags as claimed in claim 2, wherein: The lower end of the spring (78) is fixedly connected to the upper end of the support base (72), and the upper end of the spring (78) is fixedly connected to the lower end of the fixing plate (79) near the outside of the sliding rod (73).

5. An automatic creasing device for paper bags as claimed in claim 2, wherein: The upper end of the connecting frame (713) is fixedly connected to the lower end of the support base (72), and the axis of the transmission shaft (77) and the eccentric disk (76) are not on the same straight line.

6. An automatic creasing device for paper bags as claimed in claim 1, wherein: The lower end of the frame (1) is fixedly connected to a support base (2). A winding wheel (3) is installed on the inner side of the frame (1). An auxiliary wheel (4) is installed on the upper side of the inner side of the frame (1) near the winding wheel (3). A drive wheel (5) is installed on the front side of the inner side of the frame (1) near the winding wheel (3). An auxiliary frame (6) is fixedly connected on the upper side of the inner side of the frame (1) near the drive wheel (5). The indentation strip (710) is located on the front side of the drive wheel (5).

Images