Paper bag packaging machine

Abstract

The invention discloses a paper bag packaging machine, and belongs to the field of packaging equipment. The structure comprises a rack (6), a conveying belt (8), a lifting device, a rotating part and a swinging part, supporting plates (2) are arranged on the two sides of the rack (6) in a sliding mode, a baffle (1) is arranged close to the output end of the conveying belt (8) in a sliding mode, and the lifting device can drive the supporting plates (2) and the baffle (1) to vertically move; a splayed clamping plate (4) is arranged on the inner upper wall of the supporting plate (2), the swing pieces are symmetrically arranged on the supporting plate (2), the output ends of the swing pieces are connected with the pressing rollers (3), and the swing pieces enable the pressing rollers (3) to reciprocate along the outer wall of the clamping plate (4). A folding and pressing plate (5) is rotationally arranged on the upper portion of the supporting plate (2), and the rotating piece can drive the folding and pressing plate (5) to penetrate through the supporting plate (2). According to the structure, a bag opening is fixed through the clamping plate (4), the bag opening is folded through the folding and pressing plate (5), the bag opening is closed through the pressing roller (3), and the packaging efficiency is improved. The problems that existing manual bag opening packaging is complex in operation and low in efficiency are solved.

Description

Technical Field

[0001] The invention discloses a paper bag packaging machine, belonging to the field of packaging equipment. Background Art

[0002] In order to facilitate the carrying of food, it is often packed in bags. In order to reduce white garbage, more and more food has been packed in paper bags in recent years, and food paper bags are paper bags specially used for loading food. With the improvement of people's living standards, the requirements for food safety and hygiene are getting higher and higher. Therefore, food paper bags, as a packaging material with the characteristics of environmental protection, hygiene and convenience, are becoming more and more popular.

[0003] At present, the widely used food paper bag materials on the market are mainly divided into two categories: ordinary paper and composite materials. Ordinary paper bags are made of kraft paper, kraft paperboard and white paperboard, etc., which are relatively cheap, but have low hygiene standards and are not suitable for loading sensitive foods and foods that need to be kept fresh for a long time. Composite paper bags are composed of two or more layers of materials, usually made of a base material and plastic composite. It has the advantages of being waterproof, oil-proof, and shatter-resistant, and suitable composite materials can be selected according to different types of food, such as nylon, PET, PE, etc.

[0004] Most of the existing paper bags are hollow rectangular structures. After the food is placed in the bag, the bag mouth needs to be sealed. The existing technology often uses manual operation. Since the bag mouth is not square, it is actually necessary to squeeze the width side and then fold and seal the length side. However, there is no folding line on the paper bag mouth, which actually requires high proficiency of workers and low efficiency of actual folding and sealing. Summary of the invention

[0005] The technical problem to be solved by the present invention is that the existing manual bag sealing operation is complicated and inefficient.

[0006] The technical solution adopted by the present invention to solve its technical problems is: a paper bag packaging machine, including a frame and a conveyor belt, the conveyor belt is passed through the lower end of the frame, and also includes a lifting device, a rotating part and a swinging part. Support plates are slidably arranged on both sides of the frame, and a baffle is slidably arranged on the output end of the conveyor belt of the frame, and the lifting device can drive the support plate and the baffle to move vertically; an eight-shaped card plate is arranged on the upper inner wall of the support plate, the swinging part is symmetrically arranged on the support plate, and a clamping roller is connected to the output end of the swinging part, and the swinging part can make the clamping roller reciprocate along the outer wall of the card plate; a folding plate is rotatably arranged on the upper part of the support plate, and a strip hole is opened on the upper side wall of the support plate, and the rotating part can drive one end of the folding plate to pass through the support plate along the strip hole.

[0007] Among them, the lifting device of the above structure includes a lifting motor, and the support plate and the baffle are respectively provided with vertical racks at the near ends. The lifting motor is symmetrically arranged on the frame and a gear is arranged at the output end, and the two ends of the gear are respectively engaged with the vertical racks of the support plate and the baffle on the corresponding side.

[0008] Wherein, the rotating member of the above structure includes a rotating motor, which is arranged on the outer wall of the support plate near the strip hole, and the output end of the rotating motor is connected to the lower end of the folding plate.

[0009] Among them, the swinging part of the above structure includes a swinging motor and a connecting rod. A waist-shaped hole is arranged on the upper part of the support plate, and the swinging motor is arranged on the side wall of the support plate close to the waist-shaped hole. One end of the connecting rod is connected to the output end of the swinging motor, and the other end is correspondingly connected to the end of the clamping roller for rotation.

[0010] The structure further comprises a bag sealing mechanism and a bag sealing strip, wherein the bag sealing mechanism can deliver the bag sealing strip to the lowest point where the pressing roller is pressed down.

[0011] Furthermore, the bag sealing mechanism in the above structure includes a fixed plate and a film, the film is formed by curling the tape, the bag sealing strips are arranged at intervals on the inner side of the curled tape, the fixed plates are respectively arranged on the upper ends of the support plates, and the fixed plates are rotatably connected with two spaced rotating shafts, and a pulling motor is arranged on the rotating shaft away from the baffle side, the film is passed through the rotating shaft on the baffle side and rotates together with the rotating shaft, and one end of the film is connected to the other rotating shaft after passing the clamping roller.

[0012] Wherein, the clamping plate in the above structure is an arc-shaped plate structure with an open upper end.

[0013] Wherein, the folding plate in the above structure is a triangular structure.

[0014] Wherein, the above structure also includes an outer cover, which is sleeved outside the frame and has a lower end detachably connected to the frame.

[0015] The beneficial effects of the present invention are as follows: the structure fixes the bag opening through the cardboard, and then extrude the two sides inwards through the folding plate, and seals the bag opening through the upper opening of the cardboard. The pressing roller folds the bag opening along the outer wall of the cardboard to form the paper bag, so that the paper bag can be automatically sealed. And this device replaces the manual process and is streamlined. The design needs to be reasonable, the structure needs to be streamlined, the appearance needs to be beautiful, the load-bearing capacity of key components needs to meet the use requirements of the equipment, and the designed mechanical mechanism needs to conform to the actual movement, meet the use requirements of the enterprise, and reduce the economic cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the structure of the present invention.

[0017] Figure 2 For the present invention Figure 1 Exploded diagram.

[0018] Figure 3 It is a structural schematic diagram of the present invention in working state.

[0019] Figure 4 For the present invention Figure 3 Front view.

[0020] Figure 5 For the present invention Figure 3 Left view.

[0021] Figure 6 For the present invention Figure 3 Right view.

[0022] Figure 7 The present invention is provided with a bag sealing mechanism and an outer cover.

[0023] Figure 8 For the present invention Figure 7 Schematic diagram of the right view structure after removing the baffle.

[0024] Fig. 9 For the present invention Figure 8 A magnified schematic diagram of the structure at point I in the middle.

[0025] Fig.10 It is a schematic diagram of the bag mouth gathering structure of the present invention.

[0026] Fig.11 It is a schematic diagram of the structure of the pressing roller pressing the bag opening of the present invention.

[0027] Fig.12 It is a schematic diagram of the pressure roller retraction structure of the present invention.

[0028] The markings in the figure are: 1. baffle; 2. support plate; 3. pressure roller; 4. clamping plate; 5. folding plate; 6. frame; 7. gear; 8 is conveyor belt; 9. swing motor; 10. lifting motor; 11. rotating motor; 12. paper bag; 13. connecting rod; 14. outer cover; 15. bag sealing mechanism; 151. bag sealing strip; 152. fixing plate; 153. film; 154. waste film; 155. tensioning motor; 156. tape. DETAILED DESCRIPTION

[0029] The present invention is further described below in conjunction with the accompanying drawings.

[0030] like Figures 1 to 12As shown, the paper bag packaging machine of the present invention includes a frame 6 and a conveyor belt 8, and the conveyor belt 8 is inserted at the lower end of the frame 6, and also includes a lifting device, a rotating member and a swinging member. Support plates 2 are slidably arranged on both sides of the frame 6, and a baffle 1 is slidably arranged on the output end of the frame 6 near the conveyor belt 8, and the lifting device can drive the support plate 2 and the baffle 1 to move vertically; an eight-shaped card plate 4 is arranged on the upper inner wall of the support plate 2, and the swinging member is symmetrically arranged on the support plate 2, and a clamping roller 3 is connected to the output end of the swinging member, and the swinging member can make the clamping roller 3 reciprocate along the outer wall of the card plate 4; a folding plate 5 is rotatably arranged on the upper part of the support plate 2, and a strip hole is opened on the upper side wall of the support plate 2, and the rotating member can drive one end of the folding plate 5 to pass through the support plate 2 along the strip hole. It is understandable to those skilled in the art that the present structure fixes the bag opening by means of the card plate 4, and then extrude the two sides inwards by means of the folding plate 5, and seals the bag opening by means of the upper opening of the card plate 4, and the pressing roller 3 folds the bag opening along the outer wall of the card plate 4, so that the paper bag 12 is automatically sealed. In order to ensure the movement of the card plate 4, the present device is preferably provided with a lifting device, and the card plate 4 is arranged at the upper part of the opposite side of the two support plates 2, and the card plate 4 is preferably an eight-shaped structure, and the bag opening of the paper bag 12 can be effectively gathered by means of the lower opening, and the vertical movement of the support plate 2 is achieved by means of the lifting device, thereby achieving the vertical movement of the card plate 4. The conveyor belt 8 is actually used to place and move the paper bag 12, and the baffle 1 is also moved vertically by means of the lifting device in order to prevent the paper bag 12 being sealed from running out. The folding plate 5 rotates along the width direction of the conveyor belt 8, and the two sides of the paper bag 12 are folded and cooperate with the card plate 4 to achieve the sealing of the bag opening. The output end of the swinging member is connected with a clamping roller 3, which is actually arranged along the width direction of the conveyor belt 8. The swinging member can make the clamping roller 3 reciprocate along the outer wall of the card plate 4 to achieve folding and sealing of the bag mouth.

[0031] Preferably, the lifting device of the above structure includes a lifting motor 10, and the support plate 2 and the baffle 1 are respectively provided with vertical racks at their near ends, and the lifting motor 10 is symmetrically arranged on the frame 6 and a gear 7 is arranged at its output end, and the two ends of the gear 7 are respectively meshed with the vertical racks of the support plate 2 and the baffle 1 on the corresponding side. It can be understood by those skilled in the art that in order to facilitate the vertical movement of the support plate 2 and the baffle 1, the device is preferably implemented by means of gears 7 and racks, specifically, the lifting device includes a lifting motor 10, and vertical racks are respectively provided at the near ends of the support plate 2 and the baffle 1, and the lifting motor 10 is symmetrically arranged on the frame 6 and a gear 7 is arranged at its output end, and the two ends of the gear 7 are respectively meshed with the vertical racks of the support plate 2 and the baffle 1 on the corresponding side, so that the rotating shaft of the lifting motor 10 drives the gear 7 to rotate, thereby realizing the vertical movement of the support plate 2 and the baffle 1.

[0032] Preferably, the rotating member of the above structure includes a rotating motor 11, which is arranged on the outer wall of the support plate 2 near the strip hole, and the output end of the rotating motor 11 is connected to the lower end of the folding plate 5. Those skilled in the art can understand that the rotating motor 11 is directly used to drive the folding plate 5 to rotate, specifically, the rotating member includes the rotating motor 11, the rotating motor 11 is arranged on the outer wall of the support plate 2 near the strip hole, and the output end of the rotating motor 11 is connected to the lower end of the folding plate 5, so that the rotating motor 11 can drive the folding plate 5 to pass through the strip hole and fold the two side walls of the paper bag 12.

[0033] Preferably, the swing member of the above structure includes a swing motor 9 and a connecting rod 13, a waist-shaped hole is provided on the upper part of the support plate 2, the swing motor 9 is provided on the side wall of the support plate 2 near the waist-shaped hole, one end of the connecting rod 13 is connected to the output end of the swing motor 9, and the other end is correspondingly connected to the end of the pressure roller 3 for rotation. It can be understood by those skilled in the art that the specific structure of the swing member is further preferred, and the swing member preferably includes a swing motor 9 and a connecting rod 13. In order to facilitate the positioning of the pressure roller 3, a waist-shaped hole is actually provided on the upper part of the support plate 2, the swing motor 9 is provided on the side wall of the support plate 2 near the waist-shaped hole, one end of the connecting rod 13 is connected to the output end of the swing motor 9, so that the connecting rod 13 can rotate with the rotating shaft of the swing motor 9, and the other end of the connecting rod 13 is correspondingly connected to the end of the pressure roller 3 for rotation, and at the same time, the two ends of the pressure roller 3 can be placed in the waist-shaped hole to achieve the positioning of the pressure roller 3.

[0034] Preferably, the above structure further includes a bag sealing mechanism 15 and a bag sealing strip 151, and the bag sealing mechanism 15 can deliver the bag sealing strip 151 to the lowest point where the pressing roller 3 is pressed down. Those skilled in the art can understand that, in order to further ensure the packaging effect, the present structure is preferably provided with a bag sealing mechanism 15 and a bag sealing strip 151, and the bag sealing strip 151 can actually bond and fix the folded bag opening, and the bag sealing mechanism 15 can deliver the bag sealing strip 151 to the lowest point where the pressing roller 3 is pressed down, that is, the bag sealing strip 151 is pressed against the folded part of the bag opening by the pressing roller 3, so as to further achieve the sealing of the bag opening.

[0035] Preferably, the bag sealing mechanism 15 in the above structure includes a fixed plate 152 and a film 153, the film 153 is formed by curling the tape 156, the bag sealing strips 151 are arranged at intervals on the inner side of the curled tape 156, the fixed plates 152 are respectively arranged on the upper ends of the support plates 2, and the fixed plates 152 are rotatably connected with two spaced rotating shafts, and a tensioning motor 155 is arranged on the rotating shaft away from the side of the baffle 1, the film 153 is inserted into the rotating shaft on the side of the baffle 1 and rotates together with the rotating shaft, and one end of the film 153 is connected to the other rotating shaft after bypassing the pressure roller 3. Those skilled in the art can understand that the present structure further prefers the specific structure of the bag sealing mechanism 15, and the bag sealing mechanism 15 preferably includes a fixed plate 152 and a film 153, and the film 153 is formed by curling the tape 156, and the bag sealing strips 151 are arranged at intervals on the inner side of the curled tape 156, and the fixed plates 152 are respectively arranged on the upper ends of the support plates 2, and the fixed plates 152 are rotatably connected with two spaced rotating shafts, the rotating shafts are arranged along the width direction of the conveyor belt 8, and a tensioning motor 155 is arranged on the rotating shaft away from the side of the baffle 1 to keep the tape 156 in a taut state, the film 153 is passed through the rotating shaft on the side of the baffle 1 and rotates with the rotating shaft, and a tensioning member should be provided on the rotating shaft through which the film 153 is passed to prevent the rotating shaft from rotating freely and causing the tape 156 to loosen, and this structure is similar to the structure of the milk tea packaging machine, and one end of the film 153 is connected to the other rotating shaft after passing through the pressure roller 3 to form a waste film 154.

[0036] Preferably, the card plate 4 of the above structure is an arc-shaped plate structure with an opening at the upper end. Those skilled in the art will understand that in order to facilitate the gathering and shaping of the bag opening, the card plate 4 of this structure is preferably an arc-shaped plate structure with an opening at the upper end, and the bag opening is gathered to the middle through the arc surface to ensure a smooth transition of the bag opening.

[0037] Preferably, the folding plate 5 of the above structure is a triangular structure. Those skilled in the art will understand that in order to facilitate the folding and gathering of the two sides of the bag opening, the folding plate 5 of this structure is preferably a triangular structure, so as to achieve large extrusion deformation at the bag opening and facilitate the sealing and folding of the bag opening.

[0038] Preferably, the above structure further includes an outer cover 14, which is sleeved outside the frame 6, and the lower end of which is detachably connected to the frame 6. Those skilled in the art can understand that, in this structure, the outer cover 14 is preferably provided outside the frame 6, and the lower end of the outer cover 14 is connected to the frame 6 by bolts, and protection is actually achieved by the outer cover 14.

[0039] Working principle:

[0040] First, stabilize the paper bag 12. The square paper bag 12 on the conveyor belt 8 is transported under the frame 6, and the baffle 1 will initially position the paper bag 12. The lifting motor 10 rotates, and due to the action of the gear 7 on the rack, the support plate 2 moves down and the baffle 1 moves up.

[0041] Secondly, the bag opening is folded and completely closed. When the support plate 2 moves to the top of the paper bag 12 and presses against the card plate 4, the folding plate 5 creases the paper bag 12. Under the control of the rotating motor 11, the front and rear sides of the paper bag 12 are squeezed inward along the crease. When the support plate 2 continues to move downward, the paper bag 12 will close into a line and be squeezed and formed by the folding plate 5 to form a folded crease.

[0042] Finally, the bag is folded and sealed, and the pressing roller 3 rotates under the control of the swing motor 9. At this time, the position of the pressing roller 3 has three states: the first state position, the paper bag 12 has just been closed and sealed and folded (the support plate 2 does not move down, the pressing roller 3 rotates and just touches the paper bag 12, and the pressing roller 3 and the card plate 4 cooperate to squeeze the paper bag 12 to fold; the second state position, the folding work is completed (the support plate 2 does not move down, the pressing roller 3 is on the far right, and the paper bag 12 is pressed to the outside of the card plate 4. At this time, the pressing roller 3 sticks the sealing strip 151 to the outer edge of the paper bag 12, and the sealing strip 151 is halfway done; the third state position, after the folding is completed, the paper bag 12 is separated from the component (the support plate 2 partially moves down, the pressing roller 3 rotates around the center of the swing motor 9, and the pressing roller 3 and the card plate 4 work together to press the paper bag 12 and stick the sealing strip 151. When the extension of the paper bag 12 is no longer stuck on the outside of the card plate 4, when the support plate 2 moves up, due to the pressing of the pressing roller 3, the paper bag 12 is separated and will not be stuck on the card plate 4. Figures 10 to 12 The yellow line in the middle is the approximate shape of the paper bag 12.

[0043] The bag sealing mechanism works: the end of the adhesive tape 156 is wound around the rotating shaft away from the baffle 1 to form a waste film roll 154, that is, the waste film roll 154 is the film roll 153 left after the bag sealing strip 151 has been pasted on the paper bag 12, and a tensioning motor 155 is installed on the rotating shaft of the waste film roll 154. When the paper bag 12 is folded in the first state position, the bag sealing strip 151 has not been transmitted to it. During this period, due to the change in the position of the pressing roller 3, the moving shaft of the film roll 153 is forced to rotate, and the next bag sealing strip 151 is pulled out and slowly pasted. In the second state position, the tensioning motor 155 on the rotating shaft of the waste film roll 154 rotates, and the sealing strip 151 sticks to the folded upper part of the bag opening of the paper bag 12. At this time, the support plate 2 moves downward, and the tensioning motor 155 on the waste film roll 154 continues to rotate, and the sticking is completed by the coordinated movement. The pressing roller 3 reaches the second state position and is disengaged. The pressing roller 3 returns to its position, and the tensioning motor 155 stops rotating, waiting for the next paper bag 12 to be folded.

[0044] Finally, the bag is separated and placed, and returns to the production line. When the support plate 2 continues to move down, the bag mouth will be separated from the packaging parts. At this time, the pressing roller 3 moves back and moves in the opposite direction along the seam, so that the bag mouth will not be stuck on the baffle 1 of the packaging parts. Because it is attached to the bag sealing strip 151, it will fall completely on the conveyor belt 8 along the seam. At this time, the support plate 2 moves up and the baffle 1 moves down. Just because of the overall height design, the paper bag 12 can pass through the baffle 1 completely and safely.

Claims

1. A paper bag packaging machine, comprising a frame (6) and a conveyor belt (8), wherein the conveyor belt (8) is passed through the lower end of the frame (6), and is characterized in that: It also comprises a lifting device, a rotating member and a swinging member. Support plates (2) are slidably arranged on both sides of the frame (6), and a baffle (1) is slidably arranged on the output end of the frame (6) close to the conveyor belt (8). The lifting device can drive the support plate (2) and the baffle (1) to move vertically. An eight-shaped card plate (4) is arranged on the inner upper wall of the support plate (2). The swinging member is symmetrically arranged on the support plate (2), and a pressure roller (3) is connected to the output end of the swinging member. The swinging member can make the pressure roller (3) reciprocate along the outer wall of the card plate (4). A folding plate (5) is rotatably arranged on the upper part of the support plate (2). A strip hole is opened on the upper side wall of the support plate (2). The rotating member can drive one end of the folding plate (5) to pass through the support plate (2) along the strip hole.

2. The paper bag packaging machine according to claim 1, characterized in that: The lifting device comprises a lifting motor (10), and the support plate (2) and the baffle plate (1) are respectively provided with vertical racks at their proximal ends. The lifting motor (10) is symmetrically arranged on the frame (6) and a gear (7) is provided at its output end, and both ends of the gear (7) are respectively meshed with the vertical racks of the support plate (2) and the baffle plate (1) on the corresponding sides.

3. The paper bag packaging machine according to claim 1, characterized in that: The rotating member comprises a rotating motor (11), which is arranged on the outer wall of the support plate (2) near the strip-shaped hole, and the output end of the rotating motor (11) is connected to the lower end of the folding plate (5).

4. The paper bag packaging machine according to claim 1, characterized in that: The swing member comprises a swing motor (9) and a connecting rod (13); a waist-shaped hole is arranged on the upper part of the support plate (2); the swing motor (9) is arranged on the side wall of the support plate (2) close to the waist-shaped hole; one end of the connecting rod (13) is connected to the output end of the swing motor (9); and the other end is correspondingly connected to the end of the pressure roller (3) for rotation.

5. The paper bag packaging machine according to any one of claims 1 to 4, characterized in that: It also comprises a bag sealing mechanism (15) and a bag sealing strip (151), wherein the bag sealing mechanism (15) can deliver the bag sealing strip (151) to the lowest point where the pressing roller (3) is pressed down.

6. The paper bag packaging machine according to claim 5, characterized in that: The bag sealing mechanism (15) comprises a fixed plate (152) and a film (153). The film (153) is formed by curling an adhesive tape (156). The bag sealing strips (151) are arranged at intervals on the inner side of the curled adhesive tape (156). The fixed plates (152) are respectively arranged on the upper ends of the support plates (2). Two rotating shafts arranged at intervals are rotatably connected to the fixed plates (152). A pulling motor (155) is arranged on the rotating shaft away from the baffle (1). The film (153) is inserted into the rotating shaft on the baffle (1) side and rotates together with the rotating shaft. One end of the film (153) is connected to the other rotating shaft after passing through the pressure roller (3).

7. The paper bag packaging machine according to claim 1, characterized in that: The clamping plate (4) is an arc-shaped plate structure with an open upper end.

8. The paper bag packaging machine according to claim 1, characterized in that: The folding plate (5) is a triangular structure.

9. The paper bag packaging machine according to claim 1, characterized in that: It also comprises an outer cover (14), which is sleeved outside the frame (6) and has a lower end detachably connected to the frame (6).

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