A woven bag folding device

Abstract

The utility model relates to a woven bag folding device, aiming to solve the technical problem that the folding plate of the current folding device cannot be always placed in the middle position of two bag suction plates, resulting in the woven bag being separated from the bag suction plate during folding, causing folding failure. The utility model comprises a workbench, and the upper end surface of the workbench is equipped with a lower bag suction plate. The utility model sets a first hollow gear and a second hollow gear. When a servo motor drives a driving wheel to rotate, the outer edge surface of the second hollow gear has twice the number of teeth as the outer edge surface of the first hollow gear, so that the rotation speeds of the first hollow gear and the second hollow gear are different, thereby making the rising height of the second threaded column only half of the rising height of the first threaded column, so that the folding device on the second threaded column is always placed in the middle position of the lower bag suction plate and the upper bag suction plate, thereby solving the technical problem that the folding failure caused by the non-adjustable height of the folding plate of the current folding device.

Description

Technical Field

[0001] The utility model relates to the technical field of folding ends of woven bags, in particular to a folding device for woven bags. Background Art

[0002] Woven bags are mainly made by extruding plastic raw materials into thin films, which are then cut into filaments. The cut films are then unidirectionally stretched into flat filaments, which are then woven through warp and weft to form semi-finished woven bags. The semi-finished woven bags are then cut into sections and cut into woven bags of the required size. Finally, one end of the woven bag is sewn to obtain the product. When sewing, the side corners are folded into the inside of the woven bag, and then sewing is performed to increase the structural strength.

[0003] The existing folding equipment usually includes two upper and lower bag suction plates, which are used to suck open the bag mouth of the woven bag, and then fold the corners of the woven bag by rotating a folding plate. However, the height of the existing folding plate is not adjustable, resulting in that when the bag opening height is different, the folding plate with a fixed height cannot fold the woven bag from the middle position. When folding from the side, the woven bag will be separated from the bag suction plate, causing the folding failure and reducing the folding efficiency of the woven bag. In view of this, we propose a woven bag folding equipment. Utility Model Content

[0004] The purpose of the utility model is to overcome the deficiencies of the prior art, meet actual needs, and provide a woven bag folding device to solve the technical problem that the folding plate of the current folding device cannot always be placed in the middle position of the two bag suction plates, resulting in the woven bag being separated from the bag suction plate during folding, causing the folding failure.

[0005] In order to achieve the purpose of the utility model, the technical solution adopted by the utility model is: designing a woven bag folding device, including a workbench, a lower bag suction plate is installed on the upper end surface of the workbench, and an upper bag suction plate is installed on the upper end surface of the lower bag suction plate, and two driving devices are symmetrically installed on the bottom end of the workbench, and folding devices are installed on both sides of the lower bag suction plate, and the driving device includes a cross plate, a first hollow gear is rotatably installed on one side of the top of the cross plate, a driving wheel is rotatably installed in the middle of the top of the cross plate, and a second hollow gear is rotatably installed on the other side of the top of the cross plate, the first hollow gear and the second hollow gear are both meshed with the driving wheel, and the number of teeth of the second hollow gear is twice the number of teeth of the first hollow gear.

[0006] Preferably, a fan is installed on the top of the workbench, and a long tube and a hose are installed on the fan. Multiple empty slots are opened in the lower suction bag plate and the upper suction bag plate, and the openings of the multiple empty slots are all facing the bonding side of the lower suction bag plate and the upper suction bag plate.

[0007] Preferably, the plurality of empty slots in the lower suction bag plate are equidistantly arranged, and the plurality of empty slots are interconnected, the long tube is connected to the interior of the lower suction bag plate, and the hose is connected to the interior of the upper suction bag plate.

[0008] Preferably, a first threaded column is spirally connected inside the first hollow gear, and a second threaded column is spirally connected inside the second hollow gear. Connecting plates are installed on the top of the first threaded column and the second threaded column. The connecting plate on the top of the first threaded column is fixedly connected to the bottom end of the side of the upper suction bag plate, and the connecting plate on the top of the second threaded column is fixedly connected to the side of the folding device.

[0009] Preferably, the spiral direction of the thread set on the outer edge surface of the first threaded column is opposite to the spiral direction of the thread set on the outer edge surface of the second threaded column, and a servo motor for driving the driving wheel to rotate is installed at the bottom end of the cross plate.

[0010] Preferably, the folding device includes a square plate, a groove is provided on the side of the square plate facing the lower suction bag plate, a folding plate mechanism is rotatably installed in the groove, the folding plate mechanism includes a circular plate, a short rod is constructed at one end of the circular plate, the top end of the short rod extends out of the upper end surface of the square plate, a telescopic cylinder is rotatably installed on the square plate, a circular ring which is sleeved on the outer edge surface of the short rod is installed on the telescopic cylinder, and an arc groove for the short rod to slide is provided on the square plate.

[0011] Preferably, a long plate is installed in the middle of the other end of the circular plate, a plurality of rollers are installed equidistantly at the upper and lower ends of the long plate, and a plurality of ear plates rotatably connected to the rollers are installed at the ends of the long plate.

[0012] Compared with the prior art, the beneficial effects of the present invention are:

[0013] 1. The utility model provides a first hollow gear and a second hollow gear. When the servo motor drives the driving wheel to rotate, the outer edge surface of the second hollow gear has twice the number of teeth as the outer edge surface of the first hollow gear, so that the rotation speeds of the first hollow gear and the second hollow gear are different, thereby making the rising height of the second threaded column only half of the rising height of the first threaded column, so that the folding device on the second threaded column is always placed in the middle position between the lower bag suction plate and the upper bag suction plate, solving the technical problem that the folding plate of the current folding device cannot be always placed in the middle position between the two bag suction plates, resulting in the separation of the woven bag from the bag suction plate during folding, causing the folding failure.

[0014] 2. The utility model fits the woven bag by arranging multiple rollers on the upper and lower sides of the long plate, so as to reduce the friction between the woven bag and the folding plate mechanism when the folding plate mechanism is removed from the woven bag after the folding is completed, thereby avoiding the phenomenon that the folding plate mechanism damages the woven bag. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a closed schematic diagram of the utility model;

[0016] Figure 2 It is a schematic diagram of the expansion of the utility model;

[0017] Figure 3 For this utility model Figure 2 The structural diagram of the middle drive device;

[0018] Figure 4 For this utility model Figure 2 Schematic diagram of the structure of the center folding device;

[0019] Figure 5 For this utility model Figure 4 Structural schematic diagram of the middle folding plate mechanism;

[0020] In the figure: 1. workbench; 101. fan; 102. long tube; 103. hose; 2. lower suction bag plate; 201. upper suction bag plate; 202. empty slot; 3. driving device; 301. horizontal plate; 302. first hollow gear; 303. driving wheel; 304. second hollow gear; 305. servo motor; 4. first threaded column; 401. second threaded column; 402. connecting plate; 5. folding device; 501. square plate; 502. groove; 503. arc groove; 504. telescopic cylinder; 505. circular ring; 6. folding plate mechanism; 601. circular plate; 602. long plate; 603. roller; 604. ear plate; 605. short rod. DETAILED DESCRIPTION

[0021] The utility model is further described below in conjunction with the accompanying drawings and embodiments:

[0022] Example 1: A woven bag folding device, see Figures 1 to 5, including a workbench 1, a lower suction bag plate 2 is installed on the upper end surface of the workbench 1, an upper suction bag plate 201 is installed on the upper end surface of the lower suction bag plate 2, two driving devices 3 are symmetrically installed at the bottom end of the workbench 1, and angle devices 5 are installed on both sides of the lower suction bag plate 2. The driving device 3 includes a horizontal plate 301, a first hollow gear 302 is rotatably installed on one side of the top of the horizontal plate 301, a driving wheel 303 is rotatably installed in the middle of the top of the horizontal plate 301, and the other side of the top of the horizontal plate 301 is rotatably installed. A second hollow gear 304 is installed. Both the first hollow gear 302 and the second hollow gear 304 are meshed with the driving wheel 303. The number of teeth of the second hollow gear 304 is twice the number of teeth of the first hollow gear 302. The first hollow gear 302 is spirally connected with a first threaded column 4. The second hollow gear 304 is spirally connected with a second threaded column 401. The tops of the first threaded column 4 and the second threaded column 401 are both installed with a connecting plate 402. In specific implementation, the second threaded column 401 is spirally connected with the first threaded column 402. A thin rod is slidably connected to the middle of the connecting plate 402 installed at the top of the column 401, and the thin rod is fixedly connected to the workbench. The connecting plate 402 at the top of the first threaded column 4 is fixedly connected to the bottom end of the side of the upper suction bag plate 201 to limit the rotation of the second threaded column 401. The connecting plate 402 at the top of the second threaded column 401 is fixedly connected to the side of the folding device 5. The spiral direction of the thread set on the outer edge of the first threaded column 4 is opposite to the spiral direction of the thread set on the outer edge of the second threaded column 401. A servo motor 305 for driving the driving wheel 303 to rotate is installed at the bottom of the horizontal plate 301 (the servo motor can control the speed, and the position accuracy is very accurate. It can convert the voltage signal into torque and speed to drive the control object. The rotor speed of the servo motor is controlled by the input signal and can respond quickly. In the automatic control system, it is used as an actuator and has the characteristics of small electromechanical time constant and high linearity. It can convert the received electrical signal into angular displacement or angular velocity output on the motor shaft.It is divided into two categories: DC and AC servo motors. Its main characteristics are that there is no self-rotation when the signal voltage is zero, and the speed decreases at a uniform speed as the torque increases); in specific implementation, the first hollow gear 302 and the second hollow gear 304 are both provided with thread grooves. When the servo motor 305 is working, it drives the driving wheel 303 to rotate, and the driving wheel 303 meshes and drives the first hollow gear 302 and the second hollow gear 304 to rotate. The first hollow gear 302 spirally cooperates to drive the first threaded column 4 to rise, and the second hollow gear 304 spirally cooperates to drive the second threaded column 401 to rise. The outer edge of the second hollow gear 304 is twice the outer edge of the first hollow gear 302. The gear teeth mesh with the driving wheel 303, so that the rising height of the second threaded column 401 is only the height of the first threaded column 4. The utility model sets a first hollow gear 302 and a second hollow gear 304. When the servo motor 305 drives the driving wheel 303 to rotate, the outer edge surface of the second hollow gear 304 has twice the number of teeth as the outer edge surface of the first hollow gear 302, so that the rotation speeds of the first hollow gear 302 and the second hollow gear 304 are different, thereby making the rising height of the second threaded column 401 only half of the rising height of the first threaded column 4, so that the folding device 5 on the second threaded column 401 is always placed in the middle position between the lower suction bag plate 2 and the upper suction bag plate 201 when the upper suction bag plate 201 is rising, thereby solving the technical problem of the folding failure caused by the unadjustable folding plate height of the current folding device.

[0023] like Figure 1 and Figure 2 As shown, a fan 101 is installed on the top of the workbench 1, and a long tube 102 and a hose 103 are installed on the fan 101. A plurality of empty slots 202 are provided in the lower suction bag plate 2 and the upper suction bag plate 201, and the openings of the plurality of empty slots 202 are all toward the bonding side of the lower suction bag plate 2 and the upper suction bag plate 201. In specific implementation, fan-shaped slots for the folding plate mechanism 6 to engage and rotate are provided at both ends of the bonding side of the lower suction bag plate 2 and the upper suction bag plate 201, and the plurality of empty slots 202 in the lower suction bag plate 2 are equidistantly arranged, and the plurality of empty slots 202 are interconnected, the long tube 102 is connected to the interior of the lower suction bag plate 2, and the hose 103 is connected to the interior of the upper suction bag plate 201.

[0024] like Figure 2 , Figure 4 and Figure 5As shown, the folding device 5 includes a square plate 501, a groove 502 is provided on one side of the square plate 501 facing the lower suction bag plate 2, a folding plate mechanism 6 is rotatably installed in the groove 502, and the folding plate mechanism 6 includes a circular plate 601, a short rod 605 is constructed at one end of the circular plate 601, and the top of the short rod 605 extends out of the upper end surface of the square plate 501, a telescopic cylinder 504 is rotatably installed on the square plate 501, and a circular ring 505 sleeved on the outer edge surface of the short rod 605 is installed on the telescopic cylinder 504, and an arc groove 503 for the short rod 605 to slide is provided on the square plate 501, and a long plate 602 is installed in the middle of the other end of the circular plate 601, and multiple rollers 603 are equidistantly installed at the upper and lower ends of the long plate 602, and multiple ear plates 604 rotatably connected to the rollers 603 are installed at the end of the long plate 602. In specific implementation, The telescopic cylinder 504 is telescopic to drive the short rod 605 to slide in the arc groove 503, thereby driving the circular plate 601 to rotate, and the long plate 602 is rotated and extended to fold the woven bag. After the folding is completed, the upper bag suction plate 201 is lowered so that the folding plate mechanism 6 is embedded in the grooves provided on the lower bag suction plate 2 and the upper bag suction plate 201, and then the telescopic cylinder 504 is started to be telescopic, and the folding plate mechanism 6 is rotated and moved out from the lower bag suction plate 2 and the upper bag suction plate 201. The rollers 603 provided can reduce the friction between the woven bag and the woven bag, and will not damage the woven bag. The utility model fits the woven bag with multiple rollers 603 provided on the upper and lower sides of the long plate 602, so that when the folding plate mechanism 6 is moved out of the woven bag after the folding is completed, the friction between the woven bag and the woven bag is reduced, thereby avoiding the phenomenon that the folding plate mechanism 6 damages the woven bag.

[0025] The embodiments of the present invention disclose preferred embodiments, but are not limited thereto. A person skilled in the art can easily understand the spirit of the present invention based on the above embodiments and make different extensions and changes. However, as long as they do not deviate from the spirit of the present invention, they are all within the protection scope of the present invention.

Claims

1. A woven bag folding device, characterized in that: The invention comprises a workbench (1), wherein a lower suction bag plate (2) is mounted on the upper end surface of the workbench (1), an upper suction bag plate (201) is mounted on the upper end surface of the lower suction bag plate (2), two driving devices (3) are symmetrically mounted on the bottom end of the workbench (1), and angle folding devices (5) are mounted on both sides of the lower suction bag plate (2), the driving device (3) comprises a transverse plate (301), a first hollow gear (302) is rotatably mounted on one side of the top end of the transverse plate (301), a driving wheel (303) is rotatably mounted on the middle part of the top end of the transverse plate (301), and a second hollow gear (304) is rotatably mounted on the other side of the top end of the transverse plate (301), the first hollow gear (302) and the second hollow gear (304) are both meshed with the driving wheel (303), and the number of teeth of the second hollow gear (304) is twice the number of teeth of the first hollow gear (302).

2. A woven bag folding device as claimed in claim 1, characterized in that: A fan (101) is installed at the top of the workbench (1), and a long tube (102) and a hose (103) are installed on the fan (101). A plurality of empty slots (202) are provided in the lower suction bag plate (2) and the upper suction bag plate (201), and the openings of the plurality of empty slots (202) are all oriented toward the bonding side of the lower suction bag plate (2) and the upper suction bag plate (201).

3. A woven bag folding device as claimed in claim 2, characterized in that: The plurality of empty slots (202) in the lower suction bag plate (2) are arranged at equal intervals, and the plurality of empty slots (202) are interconnected, the long tube (102) is connected to the interior of the lower suction bag plate (2), and the hose (103) is connected to the interior of the upper suction bag plate (201).

4. A woven bag folding device as claimed in claim 1, characterized in that: A first threaded column (4) is spirally connected inside the first hollow gear (302), and a second threaded column (401) is spirally connected inside the second hollow gear (304). Connecting plates (402) are installed at the top ends of the first threaded column (4) and the second threaded column (401). The connecting plate (402) at the top end of the first threaded column (4) is fixedly connected to the bottom end of the side surface of the upper suction bag plate (201), and the connecting plate (402) at the top end of the second threaded column (401) is fixedly connected to the side surface of the folding device (5).

5. A woven bag folding device as claimed in claim 4, characterized in that: The spiral direction of the thread set on the outer edge surface of the first threaded column (4) is opposite to the spiral direction of the thread set on the outer edge surface of the second threaded column (401), and a servo motor (305) for driving the driving wheel (303) to rotate is installed at the bottom end of the horizontal plate (301).

6. A woven bag folding device as claimed in claim 1, characterized in that: The folding device (5) comprises a square plate (501), a groove (502) is provided on one side of the square plate (501) facing the lower suction bag plate (2), a folding plate mechanism (6) is rotatably mounted in the groove (502), the folding plate mechanism (6) comprises a circular plate (601), a short rod (605) is configured at one end of the circular plate (601), the top end of the short rod (605) extends out of the upper end surface of the square plate (501), a telescopic cylinder (504) is rotatably mounted on the square plate (501), a circular ring (505) sleeved on the outer edge surface of the short rod (605) is installed on the telescopic cylinder (504), and an arc groove (503) for the short rod (605) to slide is provided on the square plate (501).

7. A woven bag folding device as claimed in claim 6, characterized in that: A long plate (602) is installed in the middle of the other end of the circular plate (601), a plurality of rollers (603) are installed at equal distances at the upper and lower ends of the long plate (602), and a plurality of ear plates (604) rotatably connected to the rollers (603) are installed at the ends of the long plate (602).

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