Paper bag opening machine

Abstract

The utility model relates to the field of bag opening machines, in particular to a paper bag opening machine which comprises a first folding plate, a transverse plate is bolted to the rear portion of the right side of the first folding plate, a limiting rod is bolted to the upper portion of the front face of the transverse plate, and second folding plates are slidably connected to the front side and the rear side of the surface of the limiting rod. And the right side of the surface of the screw rod is in threaded connection with a sleeve rod, the left side of the surface of the screw rod is in threaded connection with a threaded sleeve, and first connecting rods are hinged to the front side and the rear side of the threaded sleeve correspondingly. By means of the movable plate, the adsorption openings, the flexible air pipe, the draught fan and the like, paper bags with small opening gaps can be effectively and rapidly unfolded in the mode of negative pressure adsorption and unfolding towards the two sides, due to the fact that the adsorption openings of the same size are evenly formed in the surface of the movable plate, opening operation can be conducted on the paper bags of different sizes, and the paper bag opening efficiency is improved. And the applicability of the bag opening machine is effectively improved.

Description

Technical Field

[0001] The utility model relates to the field of bag opening machines, in particular to a paper bag opening machine. Background Art

[0002] A paper bag is a packaging bag that is made partly or entirely of paper. Paper bags have obvious advantages in terms of environmental protection because their raw materials usually come from renewable plant fibers, such as trees, and are relatively easy to degrade. In contrast, the chemical synthesis process of plastic bags has a greater impact on the environment. Therefore, paper bags are seen as an environmentally friendly choice that helps reduce plastic pollution. In daily life, paper handbags are a common packaging bag. They are cheap and practical and can meet people's daily shopping needs. In addition, paper bags are also commonly used in food packaging, such as hamburgers, bread, roujiamo, pies and fried dough sticks, and are popular for their hygiene, recyclability and degradability.

[0003] Since paper bags are often thin, the gap on both sides of the bag opening is small when the bag opening is closed. Therefore, it is often difficult to open the bag opening using a conventional mechanical structure, which causes great problems in the automated design of the paper bag opening device.

[0004] Therefore, it is necessary to invent a paper bag opening machine to solve the above problems. Utility Model Content

[0005] The purpose of the utility model is to provide a paper bag opening machine which can effectively solve the above technical problems.

[0006] In order to achieve the above-mentioned purpose, the utility model provides the following technical solutions: a paper bag opening machine, comprising a first folding plate, a horizontal plate bolted to the rear portion of the right side of the first folding plate, a limiting rod bolted to the upper portion of the front side of the horizontal plate, a second folding plate slidably connected to the front and rear sides of the limiting rod surface, a screw rod rotatably connected to the middle portion of the right side of the first folding plate through a bearing, a sleeve rod threadedly connected to the right side of the screw rod surface, a threaded sleeve threadedly connected to the left side of the screw rod surface, a first connecting rod hinged to the front and rear sides of the threaded sleeve, and the other end of the first connecting rod is hinged to the inner side of the second folding plate, a movable plate bolted to the top of the second folding plate, suction ports arranged on the inner side of the movable plate, a flexible air duct connected to the front and rear sides of the movable plate, and a fan connected to the other end of the flexible air duct.

[0007] Preferably, a servo motor is bolted to the center of the top of the first folding plate, and a first bevel gear is rotatably connected to the center of the bottom of the first folding plate through a bearing, and the top of the first bevel gear passes through the first folding plate and is bolted to the output end of the servo motor, and the servo motor is used as a driving source to drive the first bevel gear to rotate.

[0008] Preferably, a second bevel gear is bolted to the left side of the screw rod through the first folding plate, and the surface of the second bevel gear is meshed with the surface of the first bevel gear. When the first bevel gear rotates, the rotational power is transmitted to the screw rod through the second bevel gear, thereby controlling the rotation direction of the screw rod.

[0009] Preferably, support seats are bolted to the front and rear of the top of the first folding plate, and the top of the support seat is bolted to the bottom of the fan, so that the fan is fixed to the top of the first folding plate through the support seat.

[0010] Preferably, a limiting sleeve is bolted to the top of the sleeve rod, and the inner side of the limiting sleeve is slidably sleeved with the surface of the limiting rod, so that the moving path of the sleeve rod is fixed by the limiting sleeve and the sleeve rod moves horizontally on the surface of the limiting rod.

[0011] Preferably, second connecting rods are hinged at the front and rear of both sides of the sleeve rod, and the other end of the second connecting rod is hinged to the inner side of the second folding plate, so that the second connecting rod assists the first connecting rod to open the second folding plates on the front and rear sides from the inside, thereby improving the stability of the device during operation.

[0012] Preferably, the other end of the limit rod is bolted to a limit block, and the limit block controls the maximum distance of the front and rear movable plates being unfolded to prevent the screw rod from falling off the sleeve rod.

[0013] Preferably, a connecting cavity is provided inside the movable plate, so that the fan can draw air from the adsorption port through the connecting cavity and the flexible air duct, thereby generating negative pressure at the adsorption port.

[0014] In the above technical solution, the technical effects and advantages provided by the utility model are:

[0015] 1. Through the first folding plate, the horizontal plate, the limit rod, the second folding plate, the screw rod, the threaded sleeve and other components, through the linkage between the screw rod and the sleeve rod, the first connecting rod and the second connecting rod push the movable plates on the front and rear sides outward, so that the paper bag can be opened. At the same time, it is convenient for production personnel to accurately control the opening size and opening speed of the paper bag during the bag opening process, thereby improving the production efficiency of the bag opening machine;

[0016] 2. Through the movable plate, suction port, flexible air duct, fan and other components, the paper bags with small opening gaps can be quickly unfolded by negative pressure adsorption and expansion to both sides. Since suction ports of the same size are evenly arranged on the surface of the movable plate, paper bags of different sizes can be opened, which effectively improves the applicability of the bag opener. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present invention. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

[0018] Figure 1 It is a front view of the overall structure of the utility model;

[0019] Figure 2 It is a side sectional view of the overall structure of the utility model;

[0020] Figure 3 It is a bottom view of the overall structure of the utility model;

[0021] Figure 4 For the utility model Figure 1 A magnified view of the structure at center;

[0022] Figure 5 For the utility model Figure 2 Enlarged view of the structure at point B in the middle.

[0023] Description of reference numerals:

[0024] 1. First folding plate; 2. Horizontal plate; 3. Limit rod; 4. Second folding plate; 5. Screw rod; 6. Sleeve rod; 7. Threaded sleeve; 8. First connecting rod; 9. Movable plate; 10. Adsorption port; 11. Flexible air duct; 12. Fan; 13. Servo motor; 14. First bevel gear; 15. Second bevel gear; 16. Support seat; 17. Limit sleeve; 18. Second connecting rod; 19. Limit block; 20. Connecting cavity. DETAILED DESCRIPTION

[0025] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below in conjunction with the accompanying drawings.

[0026] The utility model provides Figure 1-5A paper bag opening machine shown in the figure includes a first folding plate 1, a horizontal plate 2 is bolted to the rear part of the right side of the first folding plate 1, a limiting rod 3 is bolted to the upper part of the front side of the horizontal plate 2, and the front and rear sides of the surface of the limiting rod 3 are slidably connected to the second folding plate 4, the middle part of the right side of the first folding plate 1 is rotatably connected to a screw rod 5 through a bearing, the right side of the surface of the screw rod 5 is threadedly connected to a sleeve rod 6, and the left side of the surface of the screw rod 5 is threadedly connected to a threaded sleeve 7, the front and rear sides of the threaded sleeve 7 are hinged with a first connecting rod 8, and the other end of the first connecting rod 8 is hinged to the inner side of the second folding plate 4, the top of the second folding plate 4 is bolted with a movable plate 9, the inner side of the movable plate 9 is arranged and connected with a suction port 10, the front and rear sides of the movable plate 9 are connected with a flexible air duct 11, and the other end of the flexible air duct 11 is connected to a fan 12.

[0027] A servo motor 13 is bolted to the center of the top of the first folding plate 1, and a first bevel gear 14 is rotatably connected to the center of the bottom of the first folding plate 1 through a bearing, and the top of the first bevel gear 14 passes through the first folding plate 1 and is bolted to the output end of the servo motor 13, and the servo motor 13 is used as a driving source to drive the first bevel gear 14 to rotate.

[0028] The left side of the screw rod 5 passes through the first folding plate 1 and is bolted with a second bevel gear 15, and the surface of the second bevel gear 15 is meshed with the surface of the first bevel gear 14. When the first bevel gear 14 rotates, the rotational power is transmitted to the screw rod 5 through the second bevel gear 15, thereby controlling the rotation direction of the screw rod 5.

[0029] Support seats 16 are bolted to the front and rear of the top of the first folding plate 1 , and the top of the support seat 16 is bolted to the bottom of the fan 12 , so that the fan 12 is fixed to the top of the first folding plate 1 through the support seat 16 .

[0030] The top of the sleeve rod 6 is bolted with a limiting sleeve 17, and the inner side of the limiting sleeve 17 is slidably sleeved with the surface of the limiting rod 3. The limiting sleeve 17 fixes the moving path of the sleeve rod 6 and enables the sleeve rod 6 to move horizontally on the surface of the limiting rod 3.

[0031] The second connecting rod 18 is hinged at the front and rear of both sides of the sleeve rod 6, and the other end of the second connecting rod 18 is hinged to the inner side of the second folding plate 4, so that the second connecting rod 18 assists the first connecting rod 8 to open the second folding plate 4 on the front and rear sides from the inside, thereby improving the stability of the device during operation.

[0032] The other end of the limiting rod 3 is bolted to a limiting block 19 , and the limiting block 19 controls the maximum distance of the front and rear movable plates 9 to be unfolded, so as to prevent the screw rod 5 from falling off from the sleeve rod 6 .

[0033] A connecting cavity 20 is provided inside the movable plate 9 , so that the fan 12 can draw air from the suction port 10 through the connecting cavity 20 and the flexible air duct 11 , thereby generating negative pressure at the suction port 10 .

[0034] Refer to the instruction manual Figure 1-5 Working principle: When the device is used, the paper bag is opened downward and placed on the inner side of the movable plates 9 on both sides, and then the servo motor 13 and the fan 12 are turned on, so that the servo motor 13 drives the second bevel gear 15 to rotate through the first bevel gear 14. The second bevel gear 15 will drive the screw rod 5 to rotate during the rotation process, thereby causing the sleeve rod 6 on the surface of the screw rod 5 to move horizontally on the surface of the screw rod 5. Because the limit rod 3 limits the sleeve rod 6 and the moving stroke of the second folding plate 4, the screw rod 5 will drive the threaded sleeve 7 on its surface to move horizontally, thereby driving The first connecting rod 8 on the front and rear sides of the threaded sleeve 7 is unfolded to both sides, and cooperates with the second connecting rod 18 to drive the second folding plate 4 and the movable plate 9 to move to both sides. The fan 12 draws out the air in the connecting cavity 20 through the flexible air duct 11, and creates a negative pressure on the surface of the adsorption port 10, so that the two sides of the paper bag opening are adsorbed on the inner side of the movable plate 9. When the movable plate 9 is unfolded to both sides, the opening of the paper bag is also opened. By controlling the stroke and rotation direction of the servo motor 13, the speed of opening the paper bag and the size of the bag opening can be effectively controlled, thereby improving the practicability of the device.

[0035] The above only describes some exemplary embodiments of the present invention by way of illustration. It is undoubted that those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A paper bag opening machine, comprising a first folding plate (1), characterized in that: A transverse plate (2) is bolted to the rear portion of the right side of the first folding plate (1), a limiting rod (3) is bolted to the upper portion of the front side of the transverse plate (2), and the front and rear sides of the surface of the limiting rod (3) are slidably connected to the second folding plate (4), the middle portion of the right side of the first folding plate (1) is rotatably connected to a screw rod (5) through a bearing, the right side of the surface of the screw rod (5) is threadedly connected to a sleeve rod (6), and the left side of the surface of the screw rod (5) is threadedly connected to a threaded sleeve (7), the front and rear sides of the threaded sleeve (7) are hinged to a first connecting rod (8), and the other end of the first connecting rod (8) is hinged to the inner side of the second folding plate (4), the top of the second folding plate (4) is bolted to a movable plate (9), the inner side of the movable plate (9) is arranged and connected to a suction port (10), the front and rear sides of the movable plate (9) are connected to a flexible air duct (11), and the other end of the flexible air duct (11) is connected to a fan (12).

2. A paper bag opening machine according to claim 1, characterized in that: A servo motor (13) is bolted to the center of the top of the first folding plate (1), and a first bevel gear (14) is rotatably connected to the center of the bottom of the first folding plate (1) via a bearing, and the top of the first bevel gear (14) passes through the first folding plate (1) and is bolted to the output end of the servo motor (13).

3. A paper bag opening machine according to claim 2, characterized in that: The left side of the screw rod (5) passes through the first folding plate (1) and is bolted with a second bevel gear (15), and the surface of the second bevel gear (15) is meshed with the surface of the first bevel gear (14).

4. A paper bag opening machine according to claim 1, characterized in that: The front and rear of the top of the first folding plate (1) are both bolted to support seats (16), and the top of the support seat (16) is bolted to the bottom of the fan (12).

5. The paper bag opening machine according to claim 1, characterized in that: The top of the sleeve rod (6) is bolted to a limiting sleeve (17), and the inner side of the limiting sleeve (17) is slidably sleeved with the surface of the limiting rod (3).

6. A paper bag opening machine according to claim 1, characterized in that: The front and rear sides of both sides of the sleeve rod (6) are hinged with second connecting rods (18), and the other end of the second connecting rod (18) is hinged to the inner side of the second folding plate (4).

7. A paper bag opening machine according to claim 1, characterized in that: The other end of the limiting rod (3) is bolted to a limiting block (19).

8. The paper bag opening machine according to claim 1, characterized in that: A communicating cavity (20) is provided inside the movable plate (9).

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