Novel carton film opening machine

Abstract

The utility model discloses a novel carton film opening machine which comprises a machine frame and a conveying mechanism, the conveying mechanism comprises a first conveyor and a second conveyor which are installed on the machine frame, a discharging opening is formed in one side of the tail of the first conveyor, and the second conveyor is arranged at the discharging opening. A material pushing mechanism is arranged above the first conveyor at the discharging opening and is used for conveying the cartons on the first conveyor to the second conveyor from the discharging opening; film cutting mechanisms are symmetrically arranged on the two sides of the first conveyor and the two sides of the discharging opening; and a film tearing mechanism is arranged on the second conveyor. And a collecting mechanism used for collecting and storing the plastic film is arranged below the second conveyor and corresponds to the film tearing mechanism. The device is simple and effective in structure, the plastic film outside the carton can be efficiently cut and torn off, the torn plastic film can be effectively collected, and the production efficiency is remarkably improved.

Description

Technical Field

[0001] The utility model belongs to the field of carton processing equipment, and particularly relates to a novel carton film opening machine. Background Art

[0002] Medical devices, product raw materials, etc. are generally packed in cartons and covered with a layer of plastic film for sales and transportation. During mass production, it is necessary to tear off the plastic film wrapped outside the carton, open the carton, and then take out the medical products. The existing carton film opening device has a complex structure and low film opening efficiency, which affects the taking out and use of products. Summary of the Utility Model

[0003] In order to solve the deficiencies of the prior art, the utility model aims to provide a novel carton film opening machine. The device has a simple and effective structure, can efficiently cut and tear off the plastic film outside the carton, and can effectively collect the torn plastic film, significantly improving production efficiency.

[0004] In order to achieve the above purpose, the technical solution adopted by the utility model is as follows:

[0005] A novel carton film opening machine includes a frame and a conveying mechanism. The conveying mechanism includes a first conveyor and a second conveyor installed on the frame. A blanking port is provided on one side of the tail of the first conveyor, and the second conveyor is arranged at the blanking port. A pushing mechanism is provided above the first conveyor at the blanking port, and the pushing mechanism is used to send the carton on the first conveyor from the blanking port to the second conveyor. Cutting film mechanisms are symmetrically arranged on both sides of the middle of the first conveyor and on both sides of the blanking port. A film tearing mechanism is provided on the second conveyor. A collecting mechanism for collecting and storing the plastic film is provided corresponding to the film tearing mechanism below the second conveyor.

[0006] Preferably, the first conveyor adopts a belt conveyor, and a plurality of positioning push plates are fixedly arranged at intervals on the belt surface of the belt conveyor.

[0007] Preferably, the cutting film mechanism includes a movable plate, a cutting knife, a spring assembly and a limiting member. The base is installed on the side of the first conveyor. One end of the movable plate is horizontally rotatably installed above the base. The cutting knife is fixedly arranged at the other end of the movable plate. The spring assembly is installed on the base for resetting the movable plate after swinging. The limiting member is used to limit the swinging angle of the movable plate.

[0008] Preferably, the spring assembly includes a tension spring, and both ends of the tension spring are fixedly connected to the middle parts of the base and the movable plate respectively.

[0009] Preferably, the limiting member includes two limiting bolts, and the two limiting bolts are horizontally installed on the base and their ends are respectively arranged on both sides of the hinge point of the movable plate.

[0010] Preferably, the pusher mechanism includes a horizontal driving assembly and a pushing plate. The horizontal driving assembly is horizontally installed above the first conveyor perpendicular to the feeding direction of the first conveyor, and the pushing plate is installed at the output end of the horizontal driving assembly.

[0011] Preferably, the second conveyor is a roller conveyor.

[0012] Preferably, the film tearing mechanism includes a first vertical driving assembly and a second vertical driving assembly arranged corresponding to each other up and down. The first vertical driving assembly is installed above the roller conveyor, and a first negative pressure suction nozzle and a blowing nozzle are installed downward at the action end of the first vertical driving assembly; the second vertical driving assembly is arranged below the roller gap of the roller conveyor, and a second negative pressure suction nozzle is installed upward at the action end of the second vertical driving assembly; the blowing nozzle is used to blow the torn plastic film downward to the collection mechanism for collection and storage.

[0013] Preferably, the collection mechanism includes an aggregate box, a rotating shaft, a motor driving assembly and a pressing strip. The aggregate box is arranged below the roller conveyor with an upward opening. Activity grooves are vertically opened on both sides of the aggregate box. Rotating shafts are horizontally and rotatably installed on the frames outside the activity grooves on both sides of the aggregate box. The two rotating shafts are driven by the motor driving assembly and rotate towards each other. One end of the pressing strip is vertically fixed on the rotating shaft, and the other end penetrates through the activity groove and extends into the aggregate box to squeeze the plastic film downward.

[0014] Preferably, support rollers are arranged between the blanking port and the second conveyor.

[0015] The beneficial effects of the present utility model are as follows:

[0016] 1. The carton of the present utility model is placed on the belt conveyor and conveyed forward. When the carton contacts the film cutting mechanisms on both sides of the first conveyor for film cutting operation, the positioning push plate can push the carton forward behind, providing a stable thrust for the carton conveyance and preventing the carton from slipping on the first conveyor.

[0017] 2. When the carton is conveyed forward on the first conveyor, the film cutting mechanisms on both sides of the first conveyor can cut the plastic films on the left and right sides of the carton. After the carton is conveyed to the tail of the first conveyor and the pusher mechanism sends the carton from the blanking port to the second conveyor, the film cutting mechanisms on both sides of the blanking port will cut the plastic films on the front and back sides of the carton, so that the films on the four side walls of the carton can be cut, facilitating the subsequent film tearing mechanism to quickly tear off the films.

[0018] 3. The telescopic cylinder can drive structures such as the fixed plate, the adjusting block and the cutting knife to move up and down, so that the cutting height of the cutting knife can be adjusted. By changing the fixing position of the fixing bolt in the adjusting hole on the fixed plate, the horizontal position of the adjusting block can be horizontally adjusted, and further the distance between the two opposite cutting knives can be changed, so that the device can be adapted to open the film for cartons of different sizes.

[0019] 4. The distance between two relatively arranged cutting knives is slightly less than the width of the two film-cutting surfaces of the carton. When the carton is conveyed past the two cutting knives, it will push against the cutting knives to make them swing, and stretch the tension spring. Under the action of the elastic force of the tension spring, the cutting edges of the cutting knives can effectively abut against the side wall of the carton, and the film outside the carton can be cut open as the carton moves forward. After the carton passes through, the movable plate and the cutting knives will reset under the action of the elastic force of the tension spring.

[0020] 5. By adjusting the distance between the two limit bolts and the side wall of the movable plate, the swing amplitude of the movable plate back and forth can be effectively adjusted.

[0021] 6. The cutting knives of the film-cutting mechanism cooperate in pairs to cut open the plastic film along the side walls around the carton and send it to the roller conveyor. By driving the corresponding negative pressure suction nozzles to act with the first vertical driving component and the second vertical driving component, the plastic film on the top and bottom surfaces of the carton can be adsorbed, and then driving the corresponding negative pressure suction nozzles away from the carton, the plastic film on the upper and lower parts can be torn open from the middle cutting opening of the plastic film, realizing the rapid film tearing operation.

[0022] 7. The plastic film torn off by the two negative pressure suction nozzles will be blown down through the upper blowing nozzle, so that the torn plastic film is sent to the collection mechanism through the material receiving hopper for collection and storage.

[0023] 8. After the plastic film falls into the aggregate box through the material receiving hopper, the motor drive assembly drives the rotating shafts on both sides to rotate, and then drives the pressing strips to rotate a certain angle, so that the pressing strips on both sides rotate downward from top to bottom, and then compact the fluffy plastic film in the aggregate box downward, improving the collection capacity of the aggregate box. Description of the Drawings

[0024] Figure 1 is a schematic structural diagram of the present utility model;

[0025] Figure 2 is an installation schematic diagram of the first conveyor and the second conveyor of the present utility model;

[0026] Figure 3 is a schematic structural diagram of the film-cutting mechanism of the present utility model;

[0027] Figure 4 is an installation schematic diagram of the telescopic cylinder, the fixed plate and the adjusting block of the present utility model;

[0028] Figure 5 is a schematic structural diagram of the film tearing mechanism of the present utility model;

[0029] Figure 6 is a schematic structural diagram of the second vertical driving component of the present utility model;

[0030] Figure 7 Schematic installation diagram of the collection mechanism of the present utility model;

[0031] Figure 8 Schematic structural diagram of the collection mechanism of the present utility model. Specific implementation manners

[0032] The principles and features of the present utility model will be described below in conjunction with the accompanying drawings. The examples given are only for explaining the present utility model and do not limit the scope of use of the present utility model.

[0033] As Figure 1 shown, the present utility model provides a new type of carton film opening machine, which includes a frame 1 and a conveying mechanism. The conveying mechanism includes a first conveyor 2 and a second conveyor 5 installed on the frame 1. The first conveyor 2 adopts a belt conveyor, and a plurality of positioning push plates are fixedly arranged at intervals on the belt surface of the belt conveyor. The carton is placed on the belt conveyor and conveyed forward. When the carton contacts the film cutting mechanisms 3 on both sides of the first conveyor 2 for film cutting operation, the positioning push plate 21 can push the carton forward behind, providing a stable thrust for the carton conveying and preventing the carton from slipping on the first conveyor 2.

[0034] As Figure 2 shown, a blanking port 20 is provided on one side of the tail of the first conveyor 2, and the second conveyor 5 is arranged in parallel at the blanking port 20. A pushing mechanism is provided above the first conveyor 2 at the blanking port 20, and the pushing mechanism is used to send the carton on the first conveyor 2 from the blanking port 20 to the second conveyor 5. Among them, the pushing mechanism includes a horizontal driving component 4 and a pushing plate 41. The horizontal driving component 4 can adopt a rodless cylinder, and the rodless cylinder is horizontally installed above the first conveyor 2 perpendicular to the feeding direction of the first conveyor 2, and the pushing plate 41 is installed below the slider of the rodless cylinder. The rodless cylinder drives the pushing plate 41 to move horizontally, and can push the carton on the first conveyor 2 through the blanking port 20 to the second conveyor 5. And a support roller 22 is provided between the blanking port 20 and the second conveyor 5. The support roller 22 can provide effective support when the carton is transferred from the blanking port 20 to the second conveyor 5, and the rolling support between the support roller 22 and the bottom of the carton can also reduce the friction with the carton.

[0035] Film cutting mechanisms 3 are symmetrically provided on both sides of the middle of the first conveyor 2 and on both sides of the blanking port 20. When the carton is conveyed forward on the first conveyor 2, the film cutting mechanisms 3 on both sides of the first conveyor 2 can cut the plastic films on the left and right sides of the carton. After the carton is conveyed to the tail of the first conveyor 2 and the pushing mechanism sends the carton from the blanking port 20 to the second conveyor 5, the film cutting mechanisms 3 on both sides of the blanking port 20 will cut the plastic films on the front and back sides of the carton, so that the films on the four side walls of the carton can be cut, facilitating the subsequent film tearing mechanism to quickly tear off the films.

[0036] AsFigures 3 - 4 As shown in the figure, the film cutting mechanism 3 includes a base 31, a movable plate 37, a cutting knife 38, a spring assembly and a limiting member. The base 31 is fixed to the side of the first conveyor 2. An adjusting assembly is provided on the base 31. The adjusting assembly includes a telescopic cylinder 32, a fixing plate 33 and an adjusting block. The telescopic cylinder 32 (which can adopt a cylinder structure) is vertically installed on the base 31. The fixing plate 33 is horizontally fixed on the piston rod of the telescopic cylinder 32. The adjusting block is horizontally adjustably installed above the fixing plate 33. Specifically, an adjusting hole 330 is formed on the fixing plate 33, and the adjusting block is adjustably fixed in the adjusting hole 330 through a fixing bolt. The movable plate 37, the cutting knife 38, the spring assembly and the limiting member are arranged on the adjusting block. The telescopic cylinder 32 can drive structures such as the fixing plate 33, the adjusting block and the cutting knife 38 to move up and down, so that the cutting height of the cutting knife 38 can be adjusted. By changing the fixing position of the fixing bolt in the adjusting hole 330 on the fixing plate 33, the horizontal position of the adjusting block can be horizontally adjusted, and further the distance between the two relatively arranged cutting knives 38 can be changed, so that the device can be adapted to open the film of cartons of different sizes.

[0037] In this embodiment, the adjusting plate 34 is of an L-shaped structure. One end of the movable plate 37 is horizontally rotatably installed above the horizontal part of the adjusting plate 34, and the cutting knife 38 is fixedly arranged at the other end of the movable plate 37. The cutting knife 38 adopts a circular cutting knife 38. The spring assembly is installed on the base 31 for the movable plate 37 to reset after swinging. The spring assembly includes a tension spring 36. Two ends of the tension spring 36 are respectively fixedly connected to the middle parts of the base 31 and the movable plate 37, so that the cutting knife 38 is horizontally inclined in the opposite direction of the feeding of the first conveyor 2 or the opposite direction of the pushing of the pushing mechanism.

[0038] The distance between the two relatively arranged cutting knives 38 is slightly smaller than the width of the two film cutting surfaces of the carton. When the carton is conveyed through the two cutting knives 38, it will push against the cutting knives 38 to cause them to swing and stretch the tension spring 36. Under the elastic force of the tension spring 36, the cutting edge of the cutting knife 38 can effectively abut against the side wall of the carton, and the film outside the carton can be cut open as the carton moves forward. After the carton passes through, the movable plate 37 and the cutting knife 38 reset under the elastic force of the tension spring 36.

[0039] The limiting member is used to limit the swinging angle of the movable plate 37. The limiting member includes two limiting bolts 35. The two limiting bolts 35 are horizontally installed on the vertical part of the adjusting plate 34 and their ends are respectively arranged on both sides of the hinge point of the movable plate 37. By adjusting the distance between the two limiting bolts 35 and the side wall of the movable plate 37, the amplitude of the forward and backward swing of the movable plate 37 can be adjusted.

[0040] As Figures 5 - 6 ​As shown in the figure, a film tearing mechanism is provided on the second conveyor 5. Among them, the second conveyor 5 adopts a roller conveyor. The film tearing mechanism includes a first vertical driving component 6 and a second vertical driving component 7 arranged corresponding to each other up and down. The first vertical driving component 6 is installed above the roller conveyor. A first negative pressure suction nozzle 61 and a blowing nozzle 62 are installed downward at the action end of the first vertical driving component 6. The first vertical driving component 6 can adopt a structure in which a motor drives a sprocket to drive the platform to lift in the prior art. The second vertical driving component 7 is correspondingly arranged below the roller gap of the roller conveyor. A second negative pressure suction nozzle 71 is installed upward at the action end of the second vertical driving component 7. The second vertical driving component 7 can adopt a cylinder structure. The negative pressure suction nozzle and the blowing nozzle 62 are respectively connected to an external negative pressure mechanism and a high-pressure air source.

[0041] The cardboard boxes pass through the cutting knives 38 of the film cutting mechanism 3 in pairs to cut the plastic film along the side walls around the cardboard boxes and send it to the roller conveyor. By using the first vertical driving component 6 and the second vertical driving component 7 to drive the corresponding negative pressure suction nozzles to act, the plastic film on the top and bottom surfaces of the cardboard boxes can be adsorbed. Then, driving the corresponding negative pressure suction nozzles away from the cardboard boxes can tear the plastic film into upper and lower parts from the middle cutting opening of the plastic film, realizing a fast film tearing operation. The plastic film torn by the two negative pressure suction nozzles will be blown down by the high-pressure gas blown by the blowing nozzle 62 above, so that the torn plastic film is sent to the collection mechanism through the receiving hopper 51 for collection and storage.

[0042] As Figures 7 - 8 shown in the figure, a collection mechanism for collecting and storing plastic film is provided below the roller conveyor. A receiving hopper 51 is also provided below the roller conveyor. The plastic film blown down by the blowing nozzle 62 is sent to the collection mechanism through the receiving hopper 51. The collection mechanism includes an aggregate box 81, a rotating shaft 82, a motor driving component, and a pressing strip 84. The aggregate box 81 is arranged with an upward opening below the receiving hopper 51. Activity slots 810 are vertically opened on both sides of the aggregate box 81. Rotating shafts 82 are horizontally and rotatably installed on the frames outside the activity slots 810 on both sides of the aggregate box 81. The two rotating shafts 82 are driven by the motor driving component and rotate in opposite directions. One end of the pressing strip 84 is vertically fixed on the rotating shaft 82, and the other end passes through the activity slot 810 and extends into the aggregate box 81 to squeeze the plastic film downward. In this embodiment, the motor driving component includes a driving motor 831, a chain 832, and a gear 833. The gear 833 is installed at the end of the corresponding rotating shaft 82. The driving motor 831 is engaged with the two gears 833 through the chain 832, so as to realize the reverse rotation of the two rotating shafts 82 in opposite directions, and then drive the pressing strip 84 to rotate. The pressing strip 84 can adopt a flexible material that can be deformed.

[0043] After the plastic film drops into the aggregate bin 81 through the material receiving hopper 51, the motor drive assembly drives the rotating shafts 82 on both sides to rotate, and then drives the pressing strips 84 to rotate by a certain angle, so that the pressing strips 84 on both sides rotate downward facing each other, thereby pressing down the fluffy plastic film in the aggregate bin 81 and improving the collection capacity of the aggregate bin 81.

[0044] When the present utility model is used, the cardboard box is first conveyed by the first conveyor 2 and passes through the first set of film cutting mechanisms 3, which can cut the plastic film on the left and right sides of the cardboard box; after the cardboard box is conveyed to the tail of the first conveyor 2, when the pushing mechanism sends the cardboard box from the blanking port 20 to the second conveyor 5, the film cutting mechanisms 3 on both sides of the blanking port 20 will cut the plastic film on the front and back sides of the cardboard box; then the first vertical drive assembly 6 and the second vertical drive assembly 7 drive the corresponding negative pressure suction nozzles to act, and the upper and lower parts can be torn apart from the middle cutting place of the plastic film to achieve rapid film tearing operation; the cardboard box after film opening can be conveyed by the second conveyor 5 to the next process. After the air blowing nozzle 62 passes through high-pressure gas, the torn plastic film can be blown downwards and passes through the material receiving hopper 51 and drops into the aggregate bin 81. Then, the motor drive assembly drives the rotating shafts 82 and the pressing strips 84 on both sides to rotate by a certain angle, so that the pressing strips 84 on both sides press down the fluffy plastic film and improve the collection capacity of the aggregate bin 81.

[0045] Obviously, the embodiments described above are only a part of the embodiments of the present application, rather than all of the embodiments. The drawings show the preferred embodiments of the present application, but do not limit the patent scope of the present application. The present application can be implemented in many different forms. On the contrary, the purpose of providing these embodiments is to make the understanding of the disclosed content of the present application more thorough and comprehensive. Although the present application has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions described in the foregoing specific embodiments, or perform equivalent replacements for some of the technical features. Any equivalent structure directly or indirectly using the content of the specification and drawings of the present application in other related technical fields is equally within the scope of the patent protection of the present application.

Claims

1. A new carton film opening machine, including a frame and a conveying mechanism, characterized in that: The conveying mechanism includes a first conveyor and a second conveyor installed on a frame, a discharge port is provided on one side of the tail of the first conveyor, and the second conveyor is provided at the discharge port; a pushing mechanism is provided above the first conveyor at the discharge port, and the pushing mechanism is used to send the cartons on the first conveyor from the discharge port to the second conveyor; film cutting mechanisms are symmetrically provided on both sides of the middle of the first conveyor and on both sides of the discharge port; a film tearing mechanism is provided on the second conveyor; a collecting mechanism for collecting and storing plastic film is provided below the second conveyor corresponding to the film tearing mechanism.

2. The novel carton film opening machine according to claim 1 is characterized in that: The first conveyor is a belt conveyor, and a plurality of positioning push plates are fixedly arranged on the belt surface of the belt conveyor at intervals.

3. The new carton film opening machine according to claim 1 is characterized in that: The film cutting mechanism includes a movable plate, a cutting knife, a spring assembly and a limiter. The base is installed on the side of the first conveyor, one end of the movable plate is horizontally rotatably installed above the base, the cutting knife is fixed on the other end of the movable plate, the spring assembly is installed on the base for the movable plate to reset after swinging, and the limiter is used to limit the swinging angle of the movable plate.

4. The novel carton film opening machine according to claim 3 is characterized in that: The spring assembly comprises a tension spring, and two ends of the tension spring are respectively fixedly connected to the base and the middle part of the movable plate.

5. The novel carton film opening machine according to claim 3 is characterized in that: The limiting member comprises two limiting bolts, which are horizontally mounted on the base and whose ends are respectively arranged on both sides of the hinge point of the movable plate.

6. The novel carton film opening machine according to claim 1 is characterized in that: The pushing mechanism comprises a horizontal driving assembly and a pushing plate. The horizontal driving assembly is horizontally installed above the first conveyor perpendicular to the feeding direction of the first conveyor, and the pushing plate is installed at the output end of the horizontal driving assembly.

7. The novel carton film opening machine according to claim 1 is characterized in that: The second conveyor is a roller conveyor.

8. The novel carton film opening machine according to claim 7 is characterized in that: The film tearing mechanism includes a first vertical drive assembly and a second vertical drive assembly which are correspondingly arranged above and below. The first vertical drive assembly is installed above the roller conveyor, and the action end of the first vertical drive assembly is downwardly installed with a first negative pressure suction nozzle and a blowing nozzle; the second vertical drive assembly is arranged below the roller gap of the roller conveyor, and the action end of the second vertical drive assembly is upwardly installed with a second negative pressure suction nozzle; the blowing nozzle is used to blow the torn plastic film downward to the collection mechanism for collection and storage.

9. The novel carton film opening machine according to claim 8 is characterized in that: The collecting mechanism includes a material collection box, a rotating shaft, a motor drive assembly and a pressing strip. The opening of the material collection box is arranged upward below the roller conveyor. Active grooves are vertically opened on both sides of the material collection box. The frames outside the active grooves on both sides of the material collection box are horizontally rotatably installed with rotating shafts. The two rotating shafts are driven by the motor drive assembly and rotate in opposite directions. One end of the pressing strip is vertically fixed on the rotating shaft, and the other end passes through the active groove and extends into the material collection box to squeeze the plastic film downward.

10. The novel carton film opening machine according to claim 1 is characterized in that: A supporting roller is provided between the unloading port and the second conveyor.

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