Sealing and cutting device of paper cup packaging machine

Abstract

The utility model relates to a sealing and cutting device of a paper cup packaging machine, which comprises a machine frame, a sealing mechanism used for sealing a packaging bag and a slitting mechanism used for cutting the packaging bag after sealing are arranged on the machine frame, the sealing mechanism comprises two heat sealing assemblies which are symmetrically arranged, each heat sealing assembly comprises a movable seat, a first air cylinder and a first heat sealing head, the first heat sealing heads are arranged on the movable seats, the first air cylinders are arranged on the other sides, opposite to the first heat sealing heads, of the movable seats, and the two first air cylinders are used for driving the corresponding first heat sealing heads to move oppositely or relatively; a connector is arranged on an output shaft, facing one end of the movable seat, of the first air cylinder, a mounting clamping groove is formed in the position, corresponding to the connector, of the movable seat, the connector is clamped in the mounting clamping groove, and a gap is reserved between the connector and the mounting clamping groove. According to the technical scheme, the sealing device has the technical effects of being simple in structure, better fitting heat sealing and improving the sealing effect.

Description

Technical Field

[0001] The utility model relates to the technical field of packaging machines, in particular to a sealing and cutting device for a paper cup packaging machine. Background Art

[0002] After paper cups or paper bowls are processed and formed by a forming machine, multiple paper cups or paper bowls are sleeved and stacked together to form strips of paper cups or paper bowls, and then they are packaged with packaging bags.

[0003] The utility model patent with the application number CN202221428737.X discloses a vertical paper cup packaging machine, which includes a paper cup temporary storage cylinder assembly, an electrical control box, a plastic film placement assembly, a film pulling assembly, a film feeding assembly, a collar former assembly, a longitudinal sealing assembly, a diversion plate assembly, a transverse sealing and cutting assembly, a cup turning and discharging assembly, a labeling assembly, and a frame; the paper cups pass through the frame vertically in sequence through the paper cup temporary storage cylinder assembly, the collar former assembly, the longitudinal sealing assembly, the diversion plate assembly, the transverse sealing and cutting assembly, the cup turning and discharging assembly, and the labeling assembly arranged from top to bottom in sequence to complete the packaging.

[0004] However, the above technical solution has the following technical problems: when the existing transverse sealing and cutting assembly moves relatively for sealing and cutting, due to factors such as the accuracy of the device itself during moving heat sealing, the fitting accuracy between the two is not high, which easily leads to poor sealing effect of the packaging bag. Summary of the Utility Model

[0005] Based on the above problems, the utility model provides a sealing and cutting device for a paper cup packaging machine with a simple structure, better fitting for heat sealing, and improved sealing effect.

[0006] To achieve the above purpose, the utility model provides the following technical solution: a sealing and cutting device for a paper cup packaging machine, including a frame, on which a sealing mechanism for sealing the packaging bag and a cutting mechanism for cutting the packaging bag after sealing are arranged. The sealing mechanism includes two symmetrically arranged heat sealing components. Each heat sealing component includes a movable seat, a first cylinder, and a first heat sealing head. The first heat sealing head is arranged on the movable seat, and the first cylinder is arranged on the other side of the movable seat relative to the first heat sealing head. The two first cylinders are used to drive the corresponding first heat sealing heads to move away from or towards each other. A connecting head is arranged on the output shaft of the first cylinder towards the movable seat end, and an installation slot is arranged on the movable seat corresponding to the connecting head position. The connecting head is clamped in the installation slot and there is a gap between the connecting head and the installation slot.

[0007] By adopting the above technical solution, a heat-sealing channel for the packaging bag to pass through is formed between the two heat-sealing components. After the packaging bag is placed along the heat-sealing channel, the two first air cylinders respectively drive the corresponding first heat-sealing heads to move relative to the heat-sealing channel direction to perform fitting and sealing on the packaging bag. The sealed packaging bags are separated by the cutting mechanism, thus completing the sealing and cutting of one packaging bag. When the two first air cylinders drive the corresponding movable seats to drive the first heat-sealing heads to move relatively for sealing, if the two first heat-sealing heads do not completely fit together to seal the packaging bag, through the setting of the gap between the connecting head and the installation slot, it can be automatically adjusted by the movement of the connecting head in the installation slot, so that the two first heat-sealing heads completely fit to heat-seal the packaging bag, thereby improving the sealing effect of the packaging bag.

[0008] The present utility model is further provided with: two fixed seats are arranged on the frame, the two first air cylinders are respectively installed on the two fixed seats, a guide rod is connected between the two fixed seats, a guide sleeve is arranged at the position of the movable seat corresponding to the guide rod, and the guide sleeve slides in cooperation with the guide rod as the first air cylinder drives the movable seat.

[0009] By adopting the above technical solution, it plays a role in guiding the movement. When the first air cylinder drives the movable seat to drive the first heat-sealing head to move, the guide sleeve can slide back and forth along the position of the guide rod, improving the structural stability. The setting that the guide sleeve is sleeved on the guide rod enables it to slide along the direction of the guide rod and also cooperate with the connecting head and the installation slot to jointly adjust the fitting position between the two first heat-sealing heads, making the structure more reliable. One or more guide rods can be provided, and the present utility model preferably has two guide rods, and each guide rod is respectively arranged on the left and right sides of the fixed seat.

[0010] The present utility model is further provided with: positioning components are arranged above the heat-sealing components. The positioning components include a connecting plate, a positioning plate, and a positioning air cylinder. The connecting plate is connected to the fixed seat, the positioning air cylinder is arranged on the connecting plate, and the output shaft at one end of the positioning air cylinder is connected to the positioning plate. The two positioning air cylinders are used to drive the corresponding positioning plates to move away from or towards each other, and the distance between the two positioning plates is smaller than the distance between the two first heat-sealing heads.

[0011] By adopting the above technical solution, when the positioning air cylinder drives the positioning plate to move towards the packaging bag, the distance between the two positioning plates is smaller than the distance between the two first heat-sealing heads, so that the positioning plate abuts against the packaging bag prior to the first heat-sealing head, positioning the position of the packaging bag, facilitating the subsequent sealing of the first heat-sealing head, making the heat-sealing structure more stable, and separating the falling material during the sealing of the first heat-sealing head, without affecting the falling of the material while sealing, thus improving the processing efficiency.

[0012] The present utility model is further provided that: the first hot sealing head includes a first hot pressing strip and a second hot pressing strip which are arranged up and down. An installation groove is arranged between the first hot pressing strip and the second hot pressing strip. The slitting mechanism is arranged in one of the installation grooves. The slitting mechanism includes a cutting knife and a driving air cylinder. The cutting knife is arranged in the installation groove. The output shaft at one end of the driving air cylinder is connected with the cutting knife and drives the cutting knife to move in or out along the notch direction of the installation groove.

[0013] By adopting the above technical solution, the arrangement of the first hot pressing strip and the second hot pressing strip enables the sealing position of the first hot sealing head to be the bottom of a packaging bag and the top of the adjacent packaging bag when sealing. The slitting mechanism is arranged in the installation groove between the first hot pressing strip and the second hot pressing strip, so that the cutting position is in the middle of two packaging bags. When the driving air cylinder drives the cutting knife to move towards the packaging bag for cutting, the cutting knife cuts the packaging bag placed below, and at the same time, the bottom of the packaging bag above is sealed, saving time and improving processing efficiency.

[0014] The present utility model is further provided that: it further includes a longitudinal sealing mechanism. The longitudinal sealing mechanism is arranged above the sealing mechanism and is perpendicular to the sealing mechanism. The longitudinal sealing mechanism includes a cylinder frame, a second air cylinder, a moving plate and a second hot sealing head. The second air cylinder is arranged on the cylinder frame. The output shaft at one end of the second air cylinder is connected with the moving plate. The second hot sealing head is arranged on the moving plate. The second air cylinder is used to drive the moving plate to drive the second hot sealing head to move back and forth. An adjusting component is arranged between the moving plate and the second hot sealing head.

[0015] By adopting the above technical solution, a blanking cylinder is arranged on the machine frame, and the material falls along the position of the blanking cylinder. A collar former is arranged on the blanking cylinder, so that the plastic film is formed into a tubular shape outside the blanking cylinder. The longitudinal sealing mechanism is arranged at the front end of the blanking cylinder. The second air cylinder drives the moving plate to drive the second hot sealing head to seal the side edge of the plastic film. The arrangement of the adjusting component avoids the characteristic that the blanking cylinder itself will swing during processing when the second hot sealing head fits and seals the plastic film, and adaptively adjusts the fitting and sealing position of the second hot sealing head to make it fit the plastic film better and improve the sealing effect.

[0016] The present utility model is further provided that: the adjusting component includes a spring and a screw. The screws are respectively arranged at both ends of the moving plate. One end of the screw passes through the moving plate and is connected with the second hot sealing head. The spring is sleeved outside the screw, and one end of the spring abuts against the moving plate, and the other end abuts against the second hot sealing head.

[0017] By adopting the above technical solution, with the arrangement of the spring and the screw, when the second air cylinder drives the second heat sealing head to be attached to and seal the plastic film, automatic adjustment of the attachment is achieved. The second heat sealing head relies on the elastic force of the spring to automatically compensate for inconsistent extrusion forces, promoting better attachment of the second heat sealing head to the sealing part of the plastic film and ensuring the sealing effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a structural diagram of an embodiment of the present utility model.

[0019] Figure 2 is Figure 1 an enlarged view of the structure of part A of

[0020] Figure 3 It is an exploded view of the structure of an embodiment of the present utility model.

[0021] Figure 4 It is a structural diagram of the longitudinal sealing mechanism of an embodiment of the present utility model.

[0022] Figure 5 It is a schematic diagram of the packaging machine mechanism of an embodiment of the present utility model.

[0023] Figure 6 is Figure 5 an enlarged view of the structure of part B of

[0024] The meanings of the reference numerals in the drawings: 1 - frame, 2 - sealing mechanism, 201 - heat sealing assembly, 2011 - movable seat, 2012 - first air cylinder, 2013 - first heat sealing head, 3 - slitting mechanism, 301 - cutter, 302 - driving air cylinder, 4 - connecting head, 5 - installation slot, 6 - gap, 7 - fixed seat, 8 - guide rod, 9 - guide sleeve, 10 - positioning assembly, 1001 - connecting plate, 1002 - positioning plate, 1003 - positioning air cylinder, 11 - first hot pressing strip, 12 - second hot pressing strip, 13 - installation groove, 14 - longitudinal sealing mechanism, 1401 - air cylinder frame, 1402 - second air cylinder, 1403 - moving plate, 1404 - second heat sealing head, 15 - adjusting assembly, 1501 - spring, 1502 - screw, 16 - blanking cylinder, 17 - collar former, 18 - heat sealing channel. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0025] This specific embodiment is only an interpretation of the present utility model and does not limit the present utility model. After reading this specification, those skilled in the art can make modifications to this embodiment without creative contributions as needed, but as long as they are within the scope of the claims of the present utility model, they are protected by the patent law.

[0026] See the attached Figures 1-6The utility model discloses a sealing and cutting device of a paper cup packaging machine, comprising a frame 1, on which a sealing mechanism 2 for sealing a packaging bag and a slitting mechanism 3 for cutting the packaging bag after sealing are arranged, the sealing mechanism 2 comprises two symmetrically arranged heat sealing components 201, the two heat sealing components 201 each comprise a movable seat 2011, a first cylinder 2012, and a first heat sealing head 2013, the first heat sealing head 2013 being arranged on the movable seat 2011, the first cylinder 2012 being arranged on the other side of the movable seat 2011 relative to the first heat sealing head 2013, the two first cylinders 2012 being used to drive the corresponding first heat sealing heads 2013 to move back or relative to each other, a connector 4 being arranged on an output shaft of the first cylinder 2012 facing one end of the movable seat 2011, the movable seat 2011 being provided with a mounting slot 5 corresponding to the position of the connector 4, the connector 4 being clamped in the mounting slot 5 and a gap 6 being left between the connector 4 and the mounting slot 5. A heat sealing channel 18 is formed between the two heat sealing components 201 for the packaging bag to pass through. When the packaging bag is placed along the heat sealing channel 18, the two first cylinders 2012 respectively drive the corresponding first heat sealing heads 2013 to move relative to the heat sealing channel 18 to seal the packaging bag. After the sealing is completed, the packaging bag is separated by the slitting mechanism 3, thereby completing the sealing and cutting of a packaging bag. When the two first cylinders 2012 drive the corresponding movable seats 2011 to drive the first heat sealing heads 2013 to move relatively to seal, if the two first heat sealing heads 2013 are not completely attached to seal the packaging bag, through the setting of the gap 6 between the connecting head 4 and the mounting slot 5, the connecting head 4 can be moved in the mounting slot 5 to be automatically adjusted, so that the two first heat sealing heads 2013 are completely attached to the heat-sealed packaging bag, thereby improving the sealing effect of the packaging bag.

[0027] This embodiment is further configured as follows: two fixed seats 7 are provided on the frame 1, two first cylinders 2012 are respectively installed on the two fixed seats 7, a guide rod 8 is connected between the two fixed seats 7, a guide sleeve 9 is provided on the movable seat 2011 corresponding to the guide rod 8, and the guide sleeve 9 drives the movable seat 2011 to slide with the guide rod 8 as the first cylinder 2012 drives the movable seat 2011.

[0028] It plays a role in guiding movement. When the first cylinder 2012 drives the movable seat 2011 to drive the first heat sealing head 2013 to move, the guide sleeve 9 can slide forward and backward along the position of the guide rod 8 to improve the stability of the structure. The guide sleeve 9 is set on the guide rod 8, so that when it slides along the direction of the guide rod 8, it can also cooperate with the connecting head 4 and the installation slot 5 to adjust the fitting position between the two first heat sealing heads 2013, and the structure is more reliable. The guide rod 8 can be provided with one or more. In this embodiment, it is preferably two, and each guide rod 8 is respectively provided on the left and right sides of the fixed seat 7.

[0029] In this embodiment, further settings are made as follows: A positioning component 10 is provided above the heat-sealing component 201. The positioning component 10 includes a connecting plate 1001, a positioning plate 1002, and a positioning cylinder 1003. The connecting plate 1001 is connected to the fixed seat 7. The positioning cylinder 1003 is arranged on the connecting plate 1001. The output shaft at one end of the positioning cylinder 1003 is connected to the positioning plate 1002. Two positioning cylinders 1003 are used to drive the corresponding positioning plates 1002 to move away from or towards each other. The distance between the two positioning plates 1002 is smaller than the distance between the two first heat-sealing heads 2013. When the positioning cylinder 1003 drives the positioning plate 1002 to move towards the position of the packaging bag, the distance between the two positioning plates 1002 is smaller than the distance between the two first heat-sealing heads 2013, so that the positioning plate 1002 abuts against the packaging bag prior to the first heat-sealing head 2013, positioning the position of the packaging bag, facilitating the subsequent heat-sealing of the first heat-sealing head 2013, making the heat-sealing structure more stable, and separating the falling material during the heat-sealing of the first heat-sealing head 2013. Without affecting the falling of the material during heat-sealing, the processing efficiency is improved.

[0030] In this embodiment, further settings are made as follows: The first heat-sealing head 2013 includes a first heat-pressing strip 11 and a second heat-pressing strip 12 arranged up and down. An installation groove 13 is provided between the first heat-pressing strip 11 and the second heat-pressing strip 12. The slitting mechanism 3 is arranged in one of the installation grooves 13. The slitting mechanism 3 includes a cutting knife 301 and a driving cylinder 302. The cutting knife 301 is arranged in the installation groove 13. The output shaft at one end of the driving cylinder 302 is connected to the cutting knife 301 and drives the cutting knife 301 to move into or out of the installation groove 13 along the notch direction of the installation groove 13. The settings of the first heat-pressing strip 11 and the second heat-pressing strip 12 make the sealing position of the first heat-sealing head 2013 the bottom of one packaging bag and the top of the adjacent packaging bag. The slitting mechanism 3 is arranged in the installation groove 13 between the first heat-pressing strip 11 and the second heat-pressing strip 12, so that the cutting position is in the middle of the two packaging bags. When the driving cylinder 302 drives the cutting knife 301 to move towards the position of the packaging bag for cutting, the cutting knife 301 cuts the packaging bag placed below, and the bottom of the packaging bag above is sealed simultaneously, saving time and improving the processing efficiency.

[0031] This embodiment is further configured as follows: It further includes a longitudinal sealing mechanism 14. The longitudinal sealing mechanism 14 is arranged above the sealing mechanism 2 and is perpendicular to the sealing mechanism 2. The longitudinal sealing mechanism 14 includes a cylinder frame 1401, a second cylinder 1402, a moving plate 1403, and a second hot sealing head 1404. The second cylinder 1402 is arranged on the cylinder frame 1401. The output shaft at one end of the second cylinder 1402 is connected to the moving plate 1403. The second hot sealing head 1404 is arranged on the moving plate 1403. The second cylinder 1402 is used to drive the moving plate 1403 to drive the second hot sealing head 1404 to move back and forth. An adjusting assembly 15 is arranged between the moving plate 1403 and the second hot sealing head 1404. A blanking cylinder 16 is arranged on the frame 1. Materials fall along the position of the blanking cylinder 16. A collar former 17 is arranged on the blanking cylinder 16, so that the plastic film is formed into a tubular shape on the outside of the blanking cylinder 16. The longitudinal sealing mechanism 14 is arranged at the front end of the blanking cylinder 16. The second cylinder 1402 drives the moving plate 1403 to drive the second hot sealing head 1404 to seal the side edge of the plastic film. The setting of the adjusting assembly 15 avoids the characteristic that the blanking cylinder 16 itself will swing during processing when the second hot sealing head 1404 fits and seals the plastic film, and adaptively adjusts the fitting and sealing position of the second hot sealing head 1404, making it fit the plastic film better and improving the sealing effect. The structures of the blanking cylinder 16 and the collar former 17 have been disclosed in the background art, so the above structures will not be described in detail here.

[0032] This embodiment is further configured as follows: The adjusting assembly 15 includes a spring 1501 and screws 1502. The screws 1502 are respectively arranged at both ends of the moving plate 1403. One end of the screw 1502 passes through the moving plate 1403 and is connected to the second hot sealing head 1404. The spring 1501 is sleeved outside the screw 1502, and one end of it abuts against the moving plate 1403, and the other end abuts against the second hot sealing head 1404. The settings of the spring 1501 and the screws 1502 enable automatic adjustment of the fit when the second cylinder 1402 drives the second hot sealing head 1404 to fit and seal the plastic film. The second hot sealing head 1404 relies on the elastic force of the spring 1501 to automatically compensate for inconsistent extrusion forces, prompting the second hot sealing head 1404 to fit the sealing part of the plastic film better and ensuring the sealing effect.

[0033] It should be noted that all directional indications (such as up, down, left, right, front, back, the back surface...) in the embodiments of the present invention are only used to explain the relative positional relationship and movement conditions between components in a specific posture (as shown in the drawings). If this specific posture changes, then the directional indications will also change accordingly.

[0034] The above are only the preferred embodiments of the present utility model. It should be noted that for those of ordinary skill in the art, without departing from the technical principle of the present utility model, several improvements and modifications can be made, and these improvements and modifications under the above assumptions should also be regarded as the protection scope of the present utility model.

Claims

1. A sealing and cutting device for a paper cup packaging machine, comprising a frame, on which a sealing mechanism for sealing a packaging bag and a slitting mechanism for cutting the packaging bag after sealing are arranged, characterized in that: The sealing mechanism includes two symmetrically arranged heat sealing components, both of which include a movable seat, a first cylinder, and a first heat sealing head. The first heat sealing head is arranged on the movable seat, and the first cylinder is arranged on the other side of the movable seat relative to the first heat sealing head. The two first cylinders are used to drive the corresponding first heat sealing heads to move away from each other or relative to each other. A connecting head is arranged on the output shaft of the first cylinder facing one end of the movable seat, and an installation slot is arranged at the position of the movable seat corresponding to the connecting head. The connecting head is clamped in the installation slot and a gap is left between the connecting head and the installation slot.

2. The sealing and cutting device of a paper cup packaging machine according to claim 1, characterized in that: The frame is provided with two fixed seats, and two first cylinders are respectively installed on the two fixed seats. A guide rod is connected between the two fixed seats. The movable seat is provided with a guide sleeve at the position corresponding to the guide rod. The guide sleeve drives the movable seat to slide with the guide rod as the first cylinder drives the movable seat.

3. The sealing and cutting device of a paper cup packaging machine according to claim 2, characterized in that: A positioning assembly is arranged above the heat sealing assembly, and the positioning assembly includes a connecting plate, a positioning plate and a positioning cylinder. The connecting plate is connected to a fixing seat, and the positioning cylinder is arranged on the connecting plate. An output shaft at one end of the positioning cylinder is connected to the positioning plate. The two positioning cylinders are used to drive the corresponding positioning plates to move back or relative to each other, and the spacing distance between the two positioning plates is smaller than the spacing distance between the two first heat sealing heads.

4. The sealing and cutting device of a paper cup packaging machine according to claim 1, characterized in that: The first heat sealing head includes a first heat strip and a second heat strip which are arranged vertically, an installation groove is arranged between the first heat strip and the second heat strip, the slitting mechanism is arranged in one of the installation grooves, the slitting mechanism includes a cutter and a driving cylinder, the cutter is arranged in the installation groove, the output shaft at one end of the driving cylinder is connected to the cutter, and drives the cutter to move in or out along the notch direction of the installation groove.

5. The sealing and cutting device of a paper cup packaging machine according to claim 1, characterized in that: It also includes a longitudinal sealing mechanism, which is arranged above the sealing mechanism and perpendicular to the sealing mechanism. The longitudinal sealing mechanism includes a cylinder frame, a second cylinder, a movable plate and a second heat sealing head. The second cylinder is arranged on the cylinder frame, and an output shaft at one end of the second cylinder is connected to the movable plate. The second heat sealing head is arranged on the movable plate. The second cylinder is used to drive the movable plate to drive the second heat sealing head to move forward and backward. An adjustment component is arranged between the movable plate and the second heat sealing head.

6. The sealing and cutting device of a paper cup packaging machine according to claim 5, characterized in that: The adjustment assembly includes a spring and a screw, which are respectively arranged at both ends of the movable plate. One end of the screw passes through the movable plate and is connected to the second heat sealing head. The spring is sleeved on the outside of the screw, and one end of the spring abuts against the movable plate and the other end abuts against the second heat sealing head.

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