Bag opening device of bag feeding type packaging machine

Abstract

The utility model discloses a bag opening device of a bag feeding type packaging machine. The bag opening device comprises a support, an opening mechanism and a bag opening mechanism. A conveying mechanism is arranged at the upper end of the bracket; the opening mechanism is arranged in the middle of the front end of the bracket; the bag opening mechanism comprises a bottom plate, supporting rods, guide blocks and deflector rods, the bottom plate is arranged on the front side of the support, the supporting rods distributed in a bilateral symmetry mode are arranged at the upper end of the bottom plate, the deflector rods are connected to the middles of the outer side faces, away from each other, of the two supporting rods through bolts, and the guide blocks distributed in a bilateral symmetry mode are arranged on the upper surface of the bottom plate; according to the bag opening device of the bag feeding type packaging machine, the left side and the right side of a packaging bag are supported through the lateral supporting rods, the suction cups on the upper face and the lower face of the packaging bag are sucked at the same time, an opening of the packaging bag is larger and more stable, and therefore the packaging bag can be opened more stably; and the product can be conveniently put into the packaging bag.

Description

Technical Field

[0001] The utility model relates to the technical field of packaging machines, and particularly relates to a bag supporting device for a bag - type packaging machine. Background Art

[0002] The bag - type packaging machine replaces manual packaging and realizes packaging automation for large - scale enterprises and small - and medium - scale enterprises. The operator only needs to place the prepared bags one by one, and put hundreds of bags at the bag - taking part of the equipment at one time. The mechanical gripper of the equipment will automatically take the bags, print the date, open the bags, send a signal to the metering device for metering and discharging materials, seal the bags, and output.

[0003] The bag - loading device of the bag - type packaging machine places the packaging bag on the upper surface of the conveyor belt. The product is conveyed from another conveyor belt and is pushed to the bag - supporting device by a push rod. The bag - supporting device sucks up the upper surface of the packaging bag through a suction cup, the packaging bag opens, and the product is pushed into the packaging bag by the push rod.

[0004] During the process of supporting the bag, only the upper surface of the packaging bag is sucked up. The shape of the opening of the packaging bag is random. When the product is sent into the packaging bag, it may touch the edge of the opening, resulting in the packaging bag being pushed open and the product being unable to enter the packaging bag. For this reason, we propose a bag - supporting device for a bag - type packaging machine. Content of the Utility Model

[0005] The technical problem to be solved by the utility model is to overcome the existing defects and provide a bag - supporting device for a bag - type packaging machine. Through the lateral support rods that support the left and right sides of the packaging bag and the suction cups that simultaneously adsorb the upper and lower surfaces of the packaging bag, the opening of the packaging bag is larger and more stable, which is convenient for the product to be put into the interior of the packaging bag, and can effectively solve the problems in the background art.

[0006] To achieve the above purpose, the utility model provides the following technical solution: A bag - supporting device for a bag - type packaging machine, including a bracket, an opening mechanism, and a bag - supporting mechanism;

[0007] Bracket: A conveyor mechanism is arranged at its upper end;

[0008] Opening mechanism: It is arranged in the middle of the front end of the bracket;

[0009] Bag - supporting mechanism: It includes a bottom plate, support rods, guiding blocks, and a lever. The bottom plate is arranged on the front side of the bracket. Symmetrically distributed support rods are arranged at the upper end of the bottom plate. Bolts are connected to the middle of the outer sides of the two support rods facing away from each other. Levers are arranged on the upper surface of the bottom plate in a symmetrically distributed manner on the left and right. The guiding blocks are respectively slidably connected to the rear sides of the adjacent levers. Through the lateral support rods that support the left and right sides of the packaging bag and the suction cups that simultaneously adsorb the upper and lower surfaces of the packaging bag, the opening of the packaging bag is larger and more stable, which is convenient for the product to be put into the interior of the packaging bag.

[0010] Further, the bag supporting mechanism includes a second cylinder, a connecting seat, a connecting plate and a spring column. Symmetrically distributed second cylinders are fixedly connected to the upper surface of the bottom plate. Connecting plates are fixedly connected to the telescopic ends of the second cylinders. Connecting seats are fixedly connected to the rear sides of the relative inner ends of the two connecting plates. Uniformly distributed spring columns are fixedly connected to the opposite outer sides of the front ends of the supporting rods. The spring columns are respectively slidably connected to the inside of the through holes of the connecting seats on the same left and right sides. The air inlets of the second cylinders are all connected to the air outlet of an external air pump to insert the supporting rods into the packaging bags.

[0011] Further, the bag supporting mechanism further includes a spring. A spring seat is fixedly connected between the spring columns of the same supporting rod. Springs are sleeved outside the spring columns. The springs are respectively fixedly connected between the adjacent spring seats and the connecting seats to reset the supporting rods.

[0012] Further, the conveying mechanism includes a motor, a rotating shaft, a first conveyor belt and a second conveyor belt. Uniformly distributed rotating shafts are rotatably connected to the left and right sides of the upper end of the bracket. A first conveyor belt is rotatably connected between the rear ends of the leftmost rotating shaft and the rightmost rotating shaft. A second conveyor belt is arranged between the front ends of the leftmost rotating shaft and the rightmost rotating shaft. A motor is fixedly connected to the front side of the bracket. The output shaft of the motor is fixedly connected to the leftmost rotating shaft. The input end of the motor is electrically connected to the output end of the bag packaging machine controller to convey the packaging bags.

[0013] Further, the opening mechanism includes an air pipe, a first fixing seat, a second fixing seat, a second sliding column, a third fixing seat, a stud and a fourth fixing seat. Uniformly distributed third fixing seats are bolted to the middle part of the front side of the bracket. The second sliding columns are fixedly connected to the upper surfaces of the upper third fixing seats. The second sliding columns are slidably connected to the upper ends of the second fixing seats. The studs are fixedly connected to the lower surfaces of the lower third fixing seats. The fourth fixing seats are fixed to the lower ends of the studs through nuts. The first fixing seats are symmetrically distributed on the left and right between the two second fixing seats and between the two fourth fixing seats. The air pipes are fixedly connected to the rear ends of the first fixing seats. The suction cups are fixedly sleeved on the relative inner sides of the vertically adjacent two air pipes. The suction cups are all located between the first conveyor belt and the second conveyor belt. The air outlets of the air pipes are all connected to the air inlets of an external air extraction pump to open the packaging bags.

[0014] Further, the opening mechanism further includes a first sliding column, a lead screw and an adjusting nut. The first sliding columns are fixedly connected between the two second fixing seats and between the two fourth fixing seats. The lead screws are rotatably connected between the two second fixing seats and between the two fourth fixing seats. The middle parts of the first fixing seats are respectively threadedly connected to the outside of the adjacent lead screws. The front ends of the first fixing seats are respectively slidably connected to the outside of the adjacent first sliding columns. The adjusting nuts are fixedly connected to the left ends of the lead screws. The adjusting nuts are respectively located on the left sides of the adjacent second fixing seats or fourth fixing seats to fix the positions of the first fixing seats.

[0015] Furthermore, the opening mechanism also includes a cylinder 1 and a connecting rod. The middle part of the front side surface of the bracket is fixedly connected with a cylinder 1 which is symmetrically distributed on the left and right. The telescopic end of the cylinder 1 and the adjacent fixed seat 2 are fixedly connected by a connecting rod. The air inlet of the cylinder 1 is connected to the air outlet of the external air pump to realize the up and down movement of the suction cup at the upper end.

[0016] Compared with the prior art, the beneficial effects of the utility model are: the bag-holding device of the bag-feeding packaging machine has the following advantages:

[0017] The bag loading device places the packaging bag on the upper surface of conveyor belt 1, and the opening of the packaging bag is located on the upper surface of conveyor belt 2. The packaging bag is sent to the position of the bottom plate by the conveyor belt and the conveyor belt. The suction cup of the air pipe of the lower fixed seat 1 contacts the lower surface of the packaging bag, and then the motor is turned off. The conveyor belts 1 and 2 stop moving, and the telescopic end of the cylinder 1 is retracted, driving the connecting rod and the fixed seat 2 to move downward. The suction cup of the air pipe of the upper fixed seat 1 contacts the upper surface of the packaging bag, and the vacuum pump is started. The upper and lower surfaces of the packaging bag are adsorbed by the suction cup, and then the telescopic end of the cylinder 1 is extended to drive the upper The trachea jacket at the end is put on, and the opening of the packaging bag is opened. Then the telescopic end of the second cylinder is retracted, the connecting seat, the connecting plate and the support rod move backward, the support rods are all inserted into the inside of the packaging bag, and the push rods slide on the front side of the guide block respectively, driving the two support rods to move away from each other, and the support rods respectively support the left and right ends of the packaging bag. Then the product is pushed into the interior of the packaging bag through the push rod, and each component is reset. The upper and lower ends of the packaging bag are adsorbed by the suction cup. The opening process of the packaging bag is more stable, and the support rods open the left and right sides of the packaging bag to make the opening larger, making it more convenient for the product to enter the packaging bag. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the structure of the utility model;

[0019] Figure 2 This is an enlarged structural diagram of point A of the utility model.

[0020] In the figure: 1 bracket, 2 opening mechanism, 201 air pipe, 202 fixed seat 1, 203 sliding column 1, 204 screw rod, 205 adjusting nut, 206 fixed seat 2, 207 sliding column 2, 208 connecting rod, 209 fixed seat 3, 210 cylinder 1, 211 stud, 212 fixed seat 4, 3 bag support mechanism, 31 bottom plate, 32 support rod, 33 guide block, 34 lever, 35 cylinder 2, 36 connecting seat, 37 spring, 38 spring column, 39 connecting plate, 4 transmission mechanism, 41 motor, 42 rotating shaft, 43 conveyor belt 1, 44 conveyor belt 2. DETAILED DESCRIPTION

[0021] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0022] Please refer to Figure 1-2 , this embodiment provides a technical solution: a bag-supporting device for a bag-type packaging machine, including a bracket 1, an opening mechanism 2, and a bag-supporting mechanism 3;

[0023] Bracket 1: A conveying mechanism 4 is provided at its upper end. The conveying mechanism 4 includes a motor 41, a rotating shaft 42, a first conveyor belt 43, and a second conveyor belt 44. The left and right sides of the upper end of the bracket 1 are rotatably connected to uniformly distributed rotating shafts 42. The first conveyor belt 43 is rotatably connected between the rear ends of the leftmost rotating shaft 42 and the rightmost rotating shaft 42. A second conveyor belt 44 is provided between the front ends of the leftmost rotating shaft 42 and the rightmost rotating shaft 42. The front side of the bracket 1 is fixedly connected to a motor 41. The output shaft of the motor 41 is fixedly connected to the leftmost rotating shaft 42. The input end of the motor 41 is electrically connected to the output end of the bag-type packaging machine controller. The motor 41 drives the leftmost rotating shaft 42 to rotate, and drives the rightmost rotating shaft 42 to rotate through the first conveyor belt 43 and the second conveyor belt 44. The bag loading device places the packaging bag on the upper surface of the first conveyor belt 43. The opening of the packaging bag is located on the upper surface of the second conveyor belt 44. The packaging bag is sent to the position of the bottom plate 31 by the conveyor belt 1 and the conveyor belt 2;

[0024] Opening mechanism 2: It is arranged in the middle of the front end of the bracket 1. The opening mechanism 2 includes an air pipe 201, a first fixing seat 202, a second fixing seat 206, a second sliding column 207, a third fixing seat 209, a stud 211 and a fourth fixing seat 212. The middle of the front side of the bracket 1 is connected with evenly distributed third fixing seats 209 by bolts. The upper surfaces of the upper third fixing seats 209 are fixedly connected with second sliding columns 207. The upper ends of the second sliding columns 207 are slidably connected with second fixing seats 206. The lower surfaces of the lower third fixing seats 209 are fixedly connected with studs 211. The lower ends of the studs 211 are fixed with fourth fixing seats 212 by nuts. Between the two second fixing seats 206 and between the two fourth fixing seats 212, first fixing seats 202 are arranged symmetrically left and right. The rear ends of the first fixing seats 202 are fixedly connected with air pipes 201. The relatively inner sides of two vertically adjacent air pipes 201 are fixedly sleeved with suction cups. The suction cups are all located between the first conveyor belt 43 and the second conveyor belt 44. The air outlets of the air pipes 201 are all connected with the air inlets of an external air extraction pump. The opening mechanism 2 further includes a first sliding column 203, a lead screw 204 and an adjusting nut 205. Between the two second fixing seats 206 and between the two fourth fixing seats 212, first sliding columns 203 are fixedly connected. Between the two second fixing seats 206 and between the two fourth fixing seats 212, lead screws 204 are rotatably connected. The middle parts of the first fixing seats 202 are respectively threadedly connected to the outsides of the adjacent lead screws 204. The front ends of the first fixing seats 202 are respectively slidably connected to the outsides of the adjacent first sliding columns 203. The left ends of the lead screws 204 are fixedly connected with adjusting nuts 205. The adjusting nuts 205 are respectively located on the left sides of the adjacent second fixing seats 206 or fourth fixing seats 212. The opening mechanism 2 further includes a first cylinder 210 and a connecting rod 208. The middle of the front side of the bracket 1 is fixedly connected with symmetrically distributed first cylinders 210 left and right. The telescopic ends of the first cylinders 210 and the adjacent second fixing seats 206 are fixedly connected by connecting rods 208. The air inlets of the first cylinders 210 are all connected with the air outlets of an external air pump. The suction cup of the air pipe 201 of the lower first fixing seat 202 contacts the lower surface of the packaging bag. Subsequently, the motor 41 is turned off, and the first conveyor belt 43 and the second conveyor belt 44 stop moving. The telescopic ends of the first cylinders 210 retract, driving the connecting rods 208 and the second fixing seats 206 to move downward. The suction cup of the air pipe 201 of the upper first fixing seat 202 contacts the upper surface of the packaging bag. The air extraction pump is started, and the upper and lower surfaces of the packaging bag are adsorbed by the suction cups. Subsequently, the telescopic ends of the first cylinders 210 extend, driving the upper air pipe 201 to move upward, and the opening of the packaging bag is opened;

[0025] The bag-supporting mechanism 3 includes a bottom plate 31, a support rod 32, a guide block 33 and a lever 34. The bottom plate 31 is arranged on the front side of the bracket 1. The upper end of the bottom plate 31 is provided with support rods 32 that are symmetrically distributed on the left and right. The middle parts of the opposite outer sides of the two support rods 32 are connected with the lever 34 by bolts. The upper surface of the bottom plate 31 is provided with guide blocks 33 that are symmetrically distributed on the left and right. The guide blocks 33 are respectively slidably connected to the rear sides of the adjacent levers 34. The bag-supporting mechanism 3 includes a cylinder 2 35, a connecting seat 36, a connecting plate 39 and a spring column 38. The upper surface of the bottom plate 31 is fixedly connected with a cylinder 2 35 that is symmetrically distributed on the left and right. The telescopic ends of the cylinder 2 35 are fixedly connected with the connecting plates 39. The rear sides of the relatively inner ends of the two connecting plates 39 are fixedly connected with the connecting seats 36. The opposite outer sides of the front ends of the support rods 32 are fixedly connected with the evenly distributed spring columns 38. The spring columns 38 are respectively slidably connected to the rear sides of the adjacent levers 34. The air inlet of the second cylinder 35 is connected to the air outlet of the external air pump, and the bag-supporting mechanism 3 also includes a spring 37. A spring seat is fixedly connected between the spring columns 38 of the same support rod 32. The outside of the spring columns 38 are sleeved with springs 37. The springs 37 are respectively fixedly connected between the adjacent spring seats and the connecting seats 36. Then the telescopic end of the second cylinder 35 is retracted, the connecting seat 36, the connecting plate 39 and the support rod 32 move backward, and the support rods 32 are all inserted into the interior of the packaging bag. The lever 34 slides on the front side of the guide block 33 respectively, driving the two support rods 32 away from each other, and the spring columns 38 slide respectively in the interior of the adjacent connecting seat 36 toward one end of the adjacent cylinder 2 35. The springs 37 are all stretched, and the support rods 32 respectively support the left and right ends of the packaging bag, and then the product is pushed into the interior of the packaging bag through the push rod.

[0026] The working principle of the bag-supporting device of the bag-giving type packaging machine provided by the present utility model is as follows: Place the bag-loading device at the right end of the right side of the bracket 1, and install the bottom plate 31 on the side of the packaging conveyor belt. During operation, the product is conveyed from the packaging conveyor belt to the bottom plate 31, and the push rod of the packaging conveyor belt pushes the product towards the bottom plate 31. The motor 41 drives the rotating shaft 42 at the leftmost end to rotate, and drives the rotating shaft 42 at the rightmost end to rotate through the conveyor belt 1 43 and the conveyor belt 2 44. The bag-loading device places the packaging bag on the upper surface of the conveyor belt 1 43, and the opening of the packaging bag is located on the upper surface of the conveyor belt 2 44. The packaging bag is sent to the position of the bottom plate 31 by the conveyor belt 1 and the conveyor belt 2. The suction cup of the air pipe 201 of the fixed seat 1 202 at the lower end contacts the lower surface of the packaging bag. Subsequently, the motor 41 is turned off, and the conveyor belt 1 43 and the conveyor belt 2 44 stop moving. The telescopic end of the cylinder 1 210 retracts, driving the connecting rod 208 and the fixed seat 2 206 to move downward. The suction cup of the air pipe 201 of the fixed seat 1 202 at the upper end contacts the upper surface of the packaging bag. The air pump is started, and both the upper and lower surfaces of the packaging bag are adsorbed by the suction cups. Subsequently, the telescopic end of the cylinder 1 210 extends, driving the upper air pipe 201 to move upward, and the opening of the packaging bag is opened. Subsequently, the telescopic end of the cylinder 2 35 retracts, and the connecting seat 36, the connecting plate 39, and the supporting rod 32 move backward. The supporting rods 32 are respectively inserted into the inside of the packaging bag. The shifting rods 34 slide on the front side surfaces of the guiding blocks 33 respectively, driving the two supporting rods 32 to move away from each other. The spring columns 38 slide towards the end close to the adjacent cylinder 2 35 inside the adjacent connecting seats 36 respectively, and the springs 37 are all stretched. The supporting rods 32 respectively support the left and right ends of the packaging bag. Subsequently, the product is pushed into the inside of the packaging bag through the push rod, and all components are reset.

[0027] It should be noted that, in the above embodiments, the motor 41 disclosed can be a 6IK250GU-CF + 6GU180K / KB speed-regulating motor, and the method commonly used in the prior art is adopted for the bag-type packaging machine controller to control the operation of the motor 41.

[0028] The above are only the embodiments of the present utility model, and do not limit the patent scope of the present utility model accordingly. Any equivalent structure or equivalent process transformation made by using the content of the specification and drawings of the present utility model, or directly or indirectly applied in other related technical fields, shall be equally included in the patent protection scope of the present utility model.

Claims

1. A bag-holding device for a bag-feeding packaging machine, characterized in that: It comprises a support (1), an opening mechanism (2) and a bag-supporting mechanism (3); The support (1) has a transmission mechanism (4) disposed at its upper end; An opening mechanism (2): arranged at the middle of the front end of the bracket (1); The bag-supporting mechanism (3) comprises a bottom plate (31), a support rod (32), a guide block (33) and a lever (34), wherein the bottom plate (31) is arranged on the front side of the bracket (1), the upper end of the bottom plate (31) is provided with support rods (32) symmetrically distributed on the left and right, the middle parts of the two support rods (32) facing away from the outer side surfaces are connected to the lever (34) by bolts, and the upper surface of the bottom plate (31) is provided with guide blocks (33) symmetrically distributed on the left and right, and the guide blocks (33) are respectively slidably connected to the rear side surfaces of adjacent levers (34).

2. The bag-holding device of the bag-feeding packaging machine according to claim 1, characterized in that: The bag-supporting mechanism (3) comprises a second cylinder (35), a connecting seat (36), a connecting plate (39) and a spring column (38). The upper surface of the bottom plate (31) is fixedly connected to the second cylinder (35) which is symmetrically distributed on the left and right sides. The telescopic ends of the second cylinder (35) are fixedly connected to the connecting plates (39). The rear side surfaces of the two connecting plates (39) at the opposite inner ends are fixedly connected to the connecting seats (36). The front end of the support rod (32) is fixedly connected to the outer side surfaces which are away from each other. The spring columns (38) are respectively slidably connected to the inside of the through holes of the connecting seats (36) on the same sides on the left and right sides. The air inlets of the second cylinder (35) are connected to the air outlet of the external air pump.

3. The bag-holding device of the bag-feeding packaging machine according to claim 2, characterized in that: The bag-supporting mechanism (3) further comprises a spring (37), a spring seat being fixedly connected between spring columns (38) located on the same support rod (32), a spring (37) being sleeved on the outside of each spring column (38), and the spring (37) being fixedly connected between adjacent spring seats and connecting seats (36), respectively.

4. The bag-holding device of the bag-feeding packaging machine according to claim 1, characterized in that: The conveying mechanism (4) comprises a motor (41), a rotating shaft (42), a conveyor belt 1 (43) and a conveyor belt 2 (44); the left and right sides of the upper end of the bracket (1) are rotatably connected to the evenly distributed rotating shafts (42); the rear ends of the leftmost rotating shaft (42) and the rightmost rotating shaft (42) are rotatably connected via the conveyor belt 1 (43); the front ends of the leftmost rotating shaft (42) and the rightmost rotating shaft (42) are provided with a conveyor belt 2 (44); the front side of the bracket (1) is fixedly connected to the motor (41); the output shaft of the motor (41) is fixedly connected to the leftmost rotating shaft (42); the input end of the motor (41) is electrically connected to the output end of the bag packaging machine controller.

5. The bag-holding device of the bag-feeding packaging machine according to claim 4, characterized in that: The opening mechanism (2) comprises an air pipe (201), a fixing seat 1 (202), a fixing seat 2 (206), a sliding column 2 (207), a fixing seat 3 (209), a stud (211) and a fixing seat 4 (212); the middle part of the front side surface of the bracket (1) is connected to the evenly distributed fixing seat 3 (209) by bolts; the upper surface of the upper fixing seat 3 (209) is fixedly connected to the sliding column 2 (207); the upper end of the sliding column 2 (207) is slidably connected to the fixing seat 2 (206); the lower surface of the lower fixing seat 3 (209) is fixedly connected to the fixing seat 2 (206); A stud (211) is provided, and a fixing seat four (212) is fixed to the lower end of each stud (211) by a nut. A fixing seat one (202) is symmetrically arranged between two fixing seats two (206) and between two fixing seats four (212). The rear end of each fixing seat one (202) is fixedly connected to an air pipe (201). Suction cups are fixedly sleeved on the opposite inner sides of two vertically adjacent air pipes (201). The suction cups are located between the conveyor belt one (43) and the conveyor belt two (44). The air outlets of the air pipes (201) are connected to the air inlet of an external air pump.

6. The bag-holding device of the bag-feeding packaging machine according to claim 5, characterized in that: The opening mechanism (2) further comprises a slide column (203), a screw rod (204) and an adjusting nut (205); the slide column (203) is fixedly connected between the two fixing seats (206) and between the two fixing seats (212); the screw rod (204) is rotatably connected between the two fixing seats (206) and between the two fixing seats (212); the middle part of the fixing seat (202) is respectively threadedly connected to the outside of the adjacent screw rod (204); the front end of the fixing seat (202) is respectively slidably connected to the outside of the adjacent slide column (203); the left end of the screw rod (204) is fixedly connected to the adjusting nut (205); the adjusting nut (205) is respectively located on the left side of the adjacent fixing seat (206) or the fixing seat (212).

7. The bag-holding device of the bag-feeding packaging machine according to claim 5, characterized in that: The opening mechanism (2) further comprises a cylinder one (210) and a connecting rod (208); the middle portion of the front side surface of the bracket (1) is fixedly connected to the cylinder one (210) which is symmetrically distributed on the left and right; the telescopic end of the cylinder one (210) and the adjacent fixing seat two (206) are fixedly connected via the connecting rod (208); and the air inlet of the cylinder one (210) is connected to the air outlet of the external air pump.

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