Carton stringing machine and carton closing device

Abstract

The utility model discloses a kind of carton rope threading machine and its case closing device, it is related to rope threading machine field, including rack, including the transfer mechanism for transferring carton and the extraction mechanism for extracting carton from transfer mechanism, the extraction mechanism has the first action of reverse torsion and makes carton bottom flap's barb contact release and the second action of forward torsion and makes carton close, top punch for pushing the bottom of carton after extraction mechanism completes first action is equipped on the transfer mechanism.This utility model has the advantages of simple structure, good working stability.

Description

Technical Field

[0001] This utility model relates to the field of rope threading machines, specifically to a carton rope threading machine and its box closing device. Background Technology

[0002] Existing rope-threading machines are generally used to process paper bags by threading ropes. The bottom of the paper bag has creases, and it can be easily folded up after the rope is threaded. However, some cartons have two opposing folding plates at the bottom with barbs on them. The barbs hook each other to ensure the stability of the carton. If the carton is to be folded up, it must first be twisted in the opposite direction to disengage the barbs, then pushed against the bottom of the carton, and finally the carton must be twisted in the forward direction to fold up and flatten. Therefore, there is an urgent need for a carton rope-threading machine designed for this type of carton. Utility Model Content

[0003] To overcome the shortcomings of the prior art, this utility model provides a carton threading machine and its box closing device that are simple in structure and have good working stability.

[0004] The technical solution adopted in this utility model is as follows: a carton closing device for a carton threading machine, including a frame, a transfer mechanism for transferring cartons and a lifting mechanism for extracting cartons from the transfer mechanism. The lifting mechanism has a first action of reversing the rotation and releasing the barbs of the bottom folding plate of the carton from contact, and a second action of reversing the rotation and closing the carton. The transfer mechanism is provided with a top punch for completely disengaging the barbs of the bottom folding plate of the carton after the lifting mechanism completes the first action.

[0005] The punching component uses a cylinder and a mandrel installed at the cylinder's output end. Alternatively, the top punch can be a gas gun that sprays high-pressure gas.

[0006] The frame is equipped with an adjustment drive component; the transfer mechanism includes: A translation component, which is slidably mounted on the frame and connected to the output end of the adjustment drive; A lifting assembly, which is slidably mounted on the translation assembly; A support base is fixedly installed at the upper part of the lifting assembly; The clamping box assembly is slidably mounted on the support base and located on both sides of the top punch. The translation assembly includes a base slidably mounted on a frame, a translation seat slidably mounted on the base, and a translation drive component mounted on the base and driving the translation seat to move laterally. The lifting assembly includes a lifting seat for mounting on a support base, a first rack mounted on a translation base, and a lifting drive component mounted on the lifting seat and meshing with the first rack. The clamping box assembly includes clamping plates symmetrically mounted on a support base and a clamping box driving component that drives the clamping plates to move in opposite directions along a horizontal square on the support base.

[0007] The extraction mechanism includes two clamping plates located on both sides of the carton and at least one set of twisting drive components for driving the clamping plates to make lateral displacement. The inner surface of the clamping plates is provided with several suction cups.

[0008] The extraction mechanism also includes: The mounting frame has a sliding mounting plate at its bottom for mounting the clamping plate and the torsion box drive component; Rotate the screw, which is rotatably mounted in the mounting frame and has positive and negative threads that engage with the clamping plate; A clamping drive component is installed inside the mounting frame and its output end is linked to the rotating screw. An output drive unit is mounted on a frame and its output end is connected to the mounting frame. The clamping plate is provided with a third rack, and the output end of the torsion box drive is engaged with the third rack.

[0009] When there are two sets of the torsion box drive components, the clamping plates on both sides are slidably mounted on the mounting plate.

[0010] When the torsion box drive is a set, one side of the clamping plate is slidably mounted on the mounting plate and the other side of the clamping plate is fixedly mounted on the mounting plate.

[0011] The present invention also provides another technical solution: a carton rope threading machine, which includes a feeding device, a carton opening device, a punching device, a rope threading device, a patching device, and a carton exit conveyor belt arranged in sequence. A first transfer device is provided between the carton opening device and the punching device, and a second transfer device is provided between the punching device and the rope threading device. It also includes a carton closing device as described above. The transfer mechanism of the carton closing device is located between the rope threading device and the carton exit conveyor belt, and the extraction mechanism of the carton closing device is located between the transfer mechanism and the carton exit conveyor belt.

[0012] The frame is equipped with a rope-lifting device above the rope-threading device, the rope-lifting device comprising: A first drive unit is mounted on the frame; The guide rail base is vertically slidably mounted on the frame and is provided with a second rack that meshes with the output end of the first drive member; The middle plate of the lifting rope is installed at the lower end of the guide rail seat; Two sets of rope clamping assemblies are symmetrically and slidably installed on both sides of the lifting rope center plate; The middle plate of the lifting rope is provided with a second driving component that drives the rope clamping assembly to move in opposite directions and outwards. The rope clamping assembly includes: The side plate is connected to the output end of the second drive unit; Two sliders are slidably mounted on the side plate and have a connecting rod and a pneumatic gripper at their lower ends; The side plate is provided with a third driving component that drives the slider to move towards and away from each other; the outer side of the pneumatic gripper is provided with a bag-blocking steel plate.

[0013] The beneficial effects of this utility model are: This technical solution uses an extraction mechanism to clamp the upper part of the carton. During clamping, the carton is twisted in the opposite direction, causing the barbs of the bottom folding plate of the carton to disengage first. Then, the top punch at the bottom of the carton pushes the folding plate upward. Finally, the extraction mechanism performs a forward twist to make the carton fold up and flatten. It has the advantages of simple structure and good working stability. Attached Figure Description

[0014] Figure 1 This is a structural schematic diagram of the carton rope threading machine according to an embodiment of the present utility model.

[0015] Figure 2 This is a schematic diagram of the back structure of a carton threading machine.

[0016] Figure 3 This is a schematic diagram of the box closing device.

[0017] Figure 4 This is a schematic diagram of the transfer mechanism.

[0018] Figure 5 This is a schematic diagram of the extraction mechanism.

[0019] Figure 6 This is a schematic diagram of the rope-lifting device.

[0020] Figure 7 This is a schematic diagram of the bottom structure of the rope-lifting device. Detailed Implementation

[0021] The embodiments of this utility model will be further described below with reference to the accompanying drawings: As shown in the figure, a carton closing device for a carton threading machine includes a frame, a transfer mechanism for transferring cartons, and an extraction mechanism for extracting cartons from the transfer mechanism. The extraction mechanism has a first action of reverse twisting to release the barbs of the bottom folding plate of the carton from contact, and a second action of forward twisting to close the carton. The transfer mechanism is provided with a top punch 24 for completely disengaging the barbs of the bottom folding plate of the carton after the extraction mechanism completes the first action. This technical solution uses the extraction mechanism to clamp the upper part of the carton. During clamping, the carton is reverse twisted to release the barbs of the bottom folding plate of the carton from contact. Then, the top punch at the bottom of the carton pushes the folding plate upward. Finally, the extraction mechanism performs a forward twist to close the carton and flatten it. This method has the advantages of simple structure and good working stability.

[0022] The top punch 24 uses a cylinder 241 and a top head 242 installed at the output end of the cylinder; the top head corresponds to the center position of the bottom of the carton, and the cylinder drives the top head to rise and open the folding plate of the carton.

[0023] Alternatively, the top punch 24 can be a gas gun (not shown) that sprays high-pressure gas, which can also achieve the same function.

[0024] The frame is equipped with an adjustment drive component 26; the transfer mechanism includes: Translation component 21 is slidably mounted on the frame 1 and connected to the output end of the adjustment drive component 26; The lifting assembly 22 is slidably mounted on the translation assembly 21; Support base 23, which is fixedly installed at the upper part of the lifting assembly 22; The carton clamping assembly 25 is slidably mounted on the support base 23 and located on both sides of the top punch 24. The carton clamping assembly on the support base clamps the two sides of the carton. The adjusting drive 26 can drive the translation assembly to adjust its position in the horizontal direction. The translation assembly can drive the lifting assembly to move in the horizontal direction. The lifting assembly can drive the support base to move up and down to move closer to and away from the carton. The transfer mechanism can drive the carton to pass through the rope threading device 6 and the patching device in sequence. After the carton completes the patching process, it is transported by the transfer mechanism to the bottom of the extraction mechanism. After the extraction mechanism grabs the carton, it first performs a reverse twist to disengage the barbs of the bottom folding plate of the carton. Then, the top punch on the transfer mechanism pushes the folding plate open. After that, the extraction mechanism performs a forward twist. After the carton closes, it is transported by the extraction mechanism to the carton exit conveyor belt. The translation component 21 includes a base 211 slidably mounted on the frame 1, a translation seat 212 slidably mounted on the base 211, and a translation drive 213 mounted on the base 211 and driving the translation seat 212 to move laterally; the adjustment drive 26 and the translation drive both adopt servo motors and pulley assemblies respectively, the base is fixedly connected to the belt of the pulley assembly, and the translation seat is also fixedly connected to the belt of the pulley assembly.

[0025] The lifting assembly 22 includes a lifting seat 221 for mounting on the support seat 23, a first rack 222 mounted on the translation seat 212, and a lifting drive 223 mounted on the lifting seat 221 and meshing with the first rack 222. The lifting drive is a servo motor, and the output end of the servo motor is provided with an output gear that meshes with the first rack. The rotation of the servo motor drives the lifting seat to move up and down.

[0026] The clamping box assembly 25 includes clamping plates 251 symmetrically mounted on the support base 23 and a clamping box driving component 252 that drives the clamping plates 251 to move in opposite directions along a horizontal square on the support base 23. The clamping box driving component includes a servo motor and a screw with positive and negative threads. The servo motor drives the screw to rotate through a pulley assembly. The two clamping plates are threadedly engaged with the screw, thereby being driven by it to move in opposite directions.

[0027] The extraction mechanism 82 includes two clamping plates 823 located on both sides of the carton and at least one set of twisting drive components 826 for driving the clamping plates to move laterally. The inner surface of the clamping plates 823 is provided with several suction cups 825. The suction cups on the clamping plates firmly adhere to the two sides of the carton. Then, the twisting drive components drive the clamping plates and the side walls of the carton that are adhered to by the clamping plates to move laterally. When there are two sets of twisting drive components 826, the clamping plates 823 on both sides are slidably installed on the mounting plate 827. The two clamping plates are driven to move laterally in opposite directions. At this time, the barbs of the bottom folding plate of the carton will disengage. After the folding plate is pushed, the two clamping plates change their moving direction, causing the carton to fold up and flatten.

[0028] The clamping plate can clamp both sides of the wide side of the carton or both sides of the narrow side of the carton, achieving the same function.

[0029] When the torsion box drive component 826 is a set, one side of the clamping plate 823 is slidably installed on the mounting plate 827 and the other side of the clamping plate 823 is fixedly installed on the mounting plate 827. One side of the clamping plate is fixed, while the other side of the clamping plate is driven by the torsion box drive component to move laterally, which can also achieve the effect of two sets of torsion box drive components 826.

[0030] The extraction mechanism 82 further includes: The mounting frame 821 has a mounting plate 827 at its bottom that is slidably mounted for mounting the clamping plate 823 and the torsion box drive component 826; Rotate the screw 822, which is rotatably installed in the mounting frame 821 and has positive and negative threads that engage with the clamping plate 823; A clamping drive component 824 is installed inside the mounting frame 821 and its output end is linked to the rotating screw 822. The output drive component 83 is mounted on the frame 1 and its output end is connected to the mounting frame 821. The clamping plate 823 is provided with a third rack 828, and the output end of the torsion box drive component 826 meshes with the third rack 828; the extraction mechanism is used to grab and transfer the patched carton to the discharge conveyor belt. The extraction mechanism grabs the carton, and the discharge drive component adopts a servo motor and a pulley mechanism, which drives the extraction mechanism to move laterally; the clamping drive component adopts a servo motor, which is connected to the rotating screw through the pulley assembly. When the rotating screw rotates, it can drive the two clamping plates to move towards and away from each other through the positive and negative threads. The suction cups on the two clamping plates adhere to the two sides of the carton to prevent the carton from falling.

[0031] A carton stringing machine includes a feeding device 3, a carton opening device 4, a punching device 5, a stringing device 6, a patching device 7, and a carton exit conveyor belt 8 arranged sequentially. A first transfer device 9 is provided between the carton opening device 4 and the punching device 5, and a second transfer device 10 is provided between the punching device 5 and the stringing device 6. It also includes a carton closing device as described above. The transfer mechanism of the closing device is located between the stringing device 6 and the carton exit conveyor belt 8, and the extraction mechanism of the closing device is located between the transfer mechanism and the carton exit conveyor belt 8, thus enabling carton closing. All the beneficial effects of the device are as follows: the carton opening device removes the carton from the feeding device and performs the opening action; the folding plates at the bottom of the carton hook together to form a stable carton body; then the first transfer device transfers the carton body to the punching device; after punching is completed, the second transfer device transfers the carton to the rope threading device; after the rope is threaded, it continues to be transported by the transfer mechanism to the patching device for patching; after patching is completed, the carton is transferred by the transfer mechanism to the bottom of the extraction mechanism; the extraction mechanism and the transfer mechanism work together to complete the carton gathering, and then the extraction mechanism sends it to the carton output conveyor belt.

[0032] The feeding device 3, box opening device 4, punching device 5, rope threading device 6, and patching device 7 are existing technologies and will not be described in detail again. The working principle of the first transfer device and the second transfer device is similar to that of the transfer mechanism, and will not be described in detail again.

[0033] The frame 1 is provided with a rope lifting device 11 above the rope threading device 6, and the rope lifting device 11 includes: A first drive unit 111 is mounted on the frame 1; The guide rail seat 112 is vertically slidably mounted on the frame 1 and is provided with a second rack 113 that meshes with the output end of the first drive member 111; The middle plate 114 of the lifting rope is installed at the lower end of the guide rail seat 112; Two sets of rope clamping assemblies are symmetrically and slidably installed on both sides of the lifting rope middle plate 114; The middle plate 114 for lifting ropes is equipped with a second driving component 115 that drives the rope clamping components to move in opposite directions and outwards. The first driving component is a servo motor with an output gear. The servo motor drives the guide rail seat and the middle plate for lifting ropes on the guide rail seat to move up and down. The second driving component is a servo motor and a screw with positive and negative threads. The servo motor drives the screw to rotate through a pulley assembly. The two sets of rope clamping components are threaded with the screw to achieve opposite-direction and outward movement, thereby reaching the position corresponding to the carton, so that the rope clamping components can clamp the rope of the carton.

[0034] The rope clamping assembly includes: Side plate 116, which is connected to the output end of the second drive unit 115; Two sliders 117 are slidably mounted on the side plate 116 and have a connecting rod 118 and a pneumatic gripper 119 at their lower ends; The side plate 116 is provided with a third driving component 110 that drives the sliders 117 to move in opposite directions and outwards; the outer side of the gripper 119 is provided with a bag-blocking steel plate 1191. The third driving component will use a servo motor and a screw with positive and negative threads. The servo motor drives the screw to rotate through a pulley assembly. The two sliders are threadedly engaged with the screw to achieve opposite-direction and outward movement. After moving in opposite directions, the gripper will grab the rope. The bag-blocking steel plate is used to block the opening of the carton to facilitate the gripper grabbing the rope.

[0035] In the description of this utility model, it should be noted that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description. They do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on this utility model. In addition, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0036] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances. Furthermore, in the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0037] Please note to all technical personnel: Although this utility model has been described according to the specific embodiments above, the inventive concept of this utility model is not limited to this utility model. Any modifications that utilize the inventive concept will be included within the scope of protection of this patent.

Claims

1. A carton closing device for a carton threading machine, comprising a frame, characterized in that: It includes a transfer mechanism for transferring cartons and an extraction mechanism for extracting cartons from the transfer mechanism. The extraction mechanism has a first action of reversing and disengaging the barbs of the bottom fold of the cartons from contact, and a second action of reversing and closing the cartons. The transfer mechanism is provided with a top punch (24) for completely disengaging the barbs of the bottom fold of the cartons after the extraction mechanism completes the first action.

2. The carton closing device of the carton threading machine according to claim 1, characterized in that: The top punch (24) uses a cylinder (241) and a top head (242) installed at the output end of the cylinder. Alternatively, the top punch (24) may be a gas gun that sprays high-pressure gas.

3. The carton closing device of the carton threading machine according to claim 1, characterized in that: The frame is equipped with an adjustment drive (26); the transfer mechanism includes: Translation component (21), which is slidably mounted on the frame (1) and connected to the output end of the adjustment drive (26); A lifting assembly (22) is slidably mounted on the translation assembly (21); The support base (23) is fixedly installed on the upper part of the lifting assembly (22); The clamping box assembly (25) is slidably mounted on the support base (23) and located on both sides of the top punch (24).

4. The carton closing device of the carton threading machine according to claim 3, characterized in that: The translation assembly (21) includes a base (211) slidably mounted on the frame (1), a translation seat (212) slidably mounted on the base (211), and a translation drive (213) mounted on the base (211) and driving the translation seat (212) to move laterally. The lifting assembly (22) includes a lifting seat (221) for mounting on the support seat (23), a first rack (222) mounted on the translation seat (212), and a lifting drive (223) mounted on the lifting seat (221) and meshing with the first rack (222). The clamping box assembly (25) includes clamping plates (251) symmetrically mounted on a support base (23) and clamping box drive members (252) that drive the clamping plates (251) to move in opposite directions along a horizontal square on the support base (23).

5. The carton closing device of the carton threading machine according to claim 1, characterized in that: The extraction mechanism (82) includes two clamping plates (823) located on both sides of the carton and at least one set of twisting drive components (826) for driving the clamping plates to make lateral displacement. The inner surface of the clamping plate (823) is provided with several suction cups (825).

6. The carton closing device of the carton threading machine according to claim 5, characterized in that: The extraction mechanism (82) further includes: The mounting frame (821) has a mounting plate (827) at its bottom that is slidably mounted for mounting the clamping plate (823) and the torsion box drive (826). Rotate screw (822), which is rotatably mounted in the mounting frame (821) and has positive and negative threads that engage with the clamping plate (823); A clamping drive (824) is installed in the mounting frame (821) and its output end is linked to the rotating screw (822); The output drive unit (83) is mounted on the frame (1) and its output end is connected to the mounting frame (821); The clamping plate (823) is provided with a third rack (828), and the output end of the torsion box drive (826) meshes with the third rack (828).

7. The carton closing device of the carton threading machine according to claim 6, characterized in that: When there are two sets of the torsion box drive component (826), the clamping plates (823) on both sides are slidably installed on the mounting plate (827).

8. The carton closing device of the carton threading machine according to claim 6, characterized in that: When the torsion box drive component (826) is a set, the clamping plate (823) on one side is slidably installed on the mounting plate (827) and the clamping plate (823) on the other side is fixedly installed on the mounting plate (827).

9. A carton stringing machine, comprising a feeding device (3), a carton opening device (4), a punching device (5), a stringing device (6), a patching device (7), and a carton conveyor belt (8) arranged sequentially, wherein a first transfer device (9) is provided between the carton opening device (4) and the punching device (5), and a second transfer device (10) is provided between the punching device (5) and the stringing device (6), characterized in that: It also includes a carton closing device for the carton threading machine as described in any one of claims 1-8, wherein the transfer mechanism of the closing device is located between the threading device (6) and the carton conveyor belt (8), and the extraction mechanism of the closing device is located between the transfer mechanism and the carton conveyor belt (8).

10. The carton stringing machine according to claim 9, characterized in that: The frame (1) is provided with a rope lifting device (11) above the rope threading device (6), the rope lifting device (11) comprising: A first drive unit (111) is mounted on the frame (1); The guide rail seat (112) is vertically slidably mounted on the frame (1) and is provided with a second rack (113) that meshes with the output end of the first drive member (111). The middle plate (114) for lifting rope is installed at the lower end of the guide rail seat (112); Two sets of rope clamping assemblies are symmetrically and slidably installed on both sides of the rope lifting plate (114); The middle plate (114) of the lifting rope is provided with a second driving component (115) that drives the rope clamping assembly to move in opposite directions and outwards. The rope clamping assembly includes: Side plate (116), which is connected to the output end of the second drive unit (115); Two sliders (117) are slidably mounted on the side plate (116) and have a connecting rod (118) and a pneumatic gripper (119) at their lower ends. The side plate (116) is provided with a third driving member (110) for driving the slider (117) to move towards and away from each other; the outer side of the pneumatic gripper (119) is provided with a bag-blocking steel plate (1191).

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