CN109436463B

CN109436463B - Packaging machine

Info

Publication number: CN109436463B
Application number: CN201811269939.2A
Authority: CN
Inventors: 郭利德
Original assignee: Guangdong Guanyi Machinery Technology Co ltd
Current assignee: Guangdong Guanyi Machinery Technology Co ltd
Priority date: 2018-10-29
Filing date: 2018-10-29
Publication date: 2023-09-01
Anticipated expiration: 2038-10-29
Also published as: CN109436463A

Abstract

A packaging machine comprises a frame, a film feeding mechanism, a material conveying mechanism, a middle sealing mechanism and a transverse sealing and cutting mechanism which are arranged on the frame. Compared with the prior art, the application has the beneficial effects that the heights of the upper transverse sealing and cutting unit and the lower transverse sealing and cutting unit are adjustable due to the arrangement of the supporting plate height adjusting mechanism; the driving unit can accurately drive the first guide wheel and the second guide wheel to move due to ingenious structural design of the driving mechanism and the auxiliary positioning mechanism, and the auxiliary positioning mechanism enables the upper transverse sealing and cutting unit and the lower transverse sealing and cutting unit to move very stably; the structure of the middle sealing mechanism is improved, so that the adjustment of the material pressing unit, the cold sealing unit and the heat sealing unit is more convenient and faster, the structural design is more reasonable, and the mutual coordination among the components is better; because the automatic locking device is not under the action of the film tension, the friction locking piece is tightly attached to the brake ring, so that the automatic positioning film roll mounting shaft can be quickly and automatically locked during shutdown, and the film is prevented from loosening.

Description

Packaging machine

Technical Field

The application relates to a packaging machine, in particular to a packaging machine with an upper transverse sealing and cutting unit and a lower transverse sealing and cutting unit of a transverse sealing and cutting mechanism with adjustable heights.

Background

The packaging machine is an automatic device for packaging articles and generally comprises a frame, a film feeding mechanism, a material conveying mechanism, a middle sealing mechanism and a transverse sealing and cutting mechanism, wherein the film feeding mechanism, the material conveying mechanism, the middle sealing mechanism and the transverse sealing and cutting mechanism are arranged on the frame.

The height of the upper transverse sealing and cutting unit and the lower transverse sealing and cutting unit of the packing machine cannot be changed, so that the packing machine is difficult to adapt to different products. In addition, because the swing mechanism of the swing mechanism generally adopts two mutually parallel vertically arranged tracks, and the driving mechanism drives the transverse sealing and cutting mechanism to move through one or two swing mechanisms, the swing mechanism with the structure is easy to shake because the two tracks are unstable, and therefore, the transverse sealing and cutting mechanism is easy to be adversely affected, and the quality of transverse sealing and cutting is difficult to ensure.

The middle sealing mechanism generally has the problems of complex structure, poor matching of all parts and difficult adjustment. This results in the producer being difficult to adjust the centering mechanism according to the actual conditions, and is difficult to meet the actual production requirements.

Disclosure of Invention

The application aims to solve the technical problem of providing a packaging machine, and the heights of an upper transverse sealing and cutting unit and a lower transverse sealing and cutting unit of a transverse sealing and cutting mechanism of the packaging machine are adjustable. The technical scheme adopted is as follows: the utility model provides a packagine machine, includes the frame, installs film feeding mechanism, material conveying mechanism, well sealing mechanism, horizontal sealing and cutting mechanism in the frame, its characterized in that: the transverse sealing and cutting mechanism comprises a support, a driving mechanism connected with a driving device, an upper transverse sealing and cutting unit and a lower transverse sealing and cutting unit, wherein the support is arranged on a frame, support plates are respectively arranged on two sides of the support, an upper transverse sealing and cutting unit movement limiting groove and a lower transverse sealing and cutting unit movement limiting groove are respectively arranged on two support plates, first guide wheels are respectively arranged on two sides of the upper transverse sealing and cutting unit, second guide wheels are respectively arranged on two sides of the lower transverse sealing and cutting unit, the two first guide wheels are respectively positioned in the two upper transverse sealing and cutting unit movement limiting grooves, the two second guide wheels are respectively positioned in the two lower transverse sealing and cutting unit movement limiting grooves, and the driving mechanism connected with the driving device drives the upper transverse sealing and cutting unit and the lower transverse sealing and cutting unit to move; the support both sides all are equipped with the backup pad sliding tray that vertically extends, two backup pads slidable ground set up respectively in the backup pad sliding tray that corresponds, and two backup pad bottoms are connected through the connecting plate, the support bottom is equipped with backup pad height adjustment mechanism, backup pad height adjustment mechanism includes the regulation pivot of being connected with drive arrangement, at least one adjusting unit, adjusting unit includes the screw rod, the nut, two bevel gears, the regulation pivot is rotationally installed in the frame, the nut is fixed on the connecting plate, the screw rod is rotationally installed on the support, two bevel gears are installed respectively in screw rod bottom and regulation pivot and two bevel gears intermeshing. The driving device drives the adjusting rotating shaft to rotate, and the rotation is converted into the lifting movement of the nut along the screw rod through the two bevel gears, so that the heights of the upper transverse sealing and cutting unit and the lower transverse sealing and cutting unit are adjusted.

The application further aims to enable the upper transverse sealing and cutting unit and the lower transverse sealing and cutting unit to move more stably, and adopts the following scheme: the scheme of preference all is equipped with auxiliary positioning mechanism in two backup pads, and auxiliary positioning mechanism includes perpendicular removal track and two horizontal migration tracks that are parallel to each other, and two horizontal migration tracks are installed respectively in the backup pad and horizontal migration tracks extend along the horizontal direction, are equipped with horizontal slider on two horizontal migration tracks respectively, and perpendicular migration tracks are connected respectively to two horizontal sliders, are equipped with two perpendicular sliders on the perpendicular migration track, and two perpendicular sliders are connected with last horizontal encapsulation cutting unit, lower horizontal encapsulation cutting unit respectively. The auxiliary positioning mechanism is characterized in that the two auxiliary positioning mechanisms are matched with each other through the vertical moving track, the two vertical sliding blocks, the two horizontal moving tracks and the two horizontal sliding blocks, the positions of one end of the upper transverse sealing and cutting unit and one end of the lower transverse sealing and cutting unit are well limited, so that the two auxiliary positioning mechanisms work synchronously, the upper transverse sealing and cutting unit and the lower transverse sealing and cutting unit can move stably, the auxiliary positioning mechanism is simple in structure, low in manufacturing cost, difficult to cause problems, and easy to manufacture and maintain.

The application further aims to enable the middle seal mechanism to be adjusted more conveniently and rapidly, and adopts the following scheme: the middle sealing mechanism comprises a pressing unit, a cold sealing unit, a heat sealing unit and two middle sealing cover plates, wherein the two middle sealing cover plates are respectively arranged on the frame, the pressing unit is positioned above the two middle sealing cover plates, and the cold sealing unit and the heat sealing unit are positioned below the two middle sealing cover plates; the heat sealing unit comprises a second support frame, a heat sealing roller transmission mechanism, a heat sealing roller spacing adjusting mechanism, a first heat sealing roller and a second heat sealing roller, wherein the heat sealing roller transmission mechanism, the heat sealing roller spacing adjusting mechanism, the first heat sealing roller and the second heat sealing roller are arranged on the second support frame, the first heat sealing roller and the second heat sealing roller are respectively and vertically arranged, the first heat sealing roller is rotatably arranged on the second support frame, the second heat sealing roller is arranged on the heat sealing roller spacing adjusting mechanism, the heat sealing roller transmission mechanism comprises a second transmission gear set, a first transmission gear wheel, a second transmission gear wheel and a second transverse rotating shaft connected with a driving device, the second transverse rotating shaft is arranged on the second support frame, the second transverse rotating shaft drives the first heat sealing roller to rotate through the second transmission gear set, the first transmission gear wheel corresponds to the first heat sealing roller and is coaxially fixed, the second transmission gear wheel corresponds to the second heat sealing roller and is coaxially fixed, and the first transmission gear wheel and the second transmission gear wheel are meshed with each other. The heat sealing roller spacing adjusting mechanism achieves the purpose of enabling the first heat sealing roller and the second heat sealing roller to be in contact and separated by adjusting the spacing between the first heat sealing roller and the second heat sealing roller, so that the first heat sealing roller and the second heat sealing roller are separated when the machine is stopped, and the film is prevented from being scalded.

The preferable scheme, heat-seal roller interval adjustment mechanism includes cylinder, ejector pin, supporting seat, bearing frame, perpendicular pivot, regulation pole, at least one elasticity return unit, install the bearing on the bearing frame, the second support frame is articulated to the cylinder rear end, the piston shaft connection ejector pin front end of cylinder, ejector pin rear end connection supporting seat lower part, the both ends of regulation pole are connected supporting seat upper portion respectively, the bearing frame, the articulated second support frame of bearing frame lower part, bearing frame upper portion and second support frame are connected respectively at the both ends of elasticity return unit, perpendicular pivot rotationally installs in the bearing of bearing frame, the second transmission gear wheel, the second heat-seal roller is installed in perpendicular pivot respectively. When the first heat-sealing roller and the second heat-sealing roller are required to be separated (when the machine is stopped), the piston shaft of the air cylinder pushes the ejector rod forwards, the air cylinder can rotate at the moment, the rear end of the ejector rod presses the supporting seat backwards, the supporting seat rotates to drive the adjusting rod to move forwards, so that the bearing seat is forced to move forwards along with the adjusting rod, the second heat-sealing roller is far away from the first heat-sealing roller, and the purpose of separating the first heat-sealing roller and the second heat-sealing roller is achieved. When the heat-sealing device works, the air cylinder stops working, the bearing seat returns to the original position backwards under the action of the elastic return unit, and the first heat-sealing roller and the second heat-sealing roller are in contact.

The application further aims to quickly and automatically lock the automatic positioning film roll mounting shaft during shutdown, avoid film loosening, and adopts the following scheme: the film feeding mechanism comprises a supporting plate, at least one guide roller and at least two automatic positioning film roll mounting shafts, wherein the guide roller and the at least two automatic positioning film roll mounting shafts are arranged on the supporting plate, an automatic locking device corresponding to the automatic positioning film roll mounting shafts is arranged on the automatic positioning film roll mounting shafts, a brake ring is arranged on one side of each automatic positioning film roll mounting shaft, each automatic locking device comprises an automatic control unit, a friction locking piece mounting rod and a first spring, the middle part of each friction locking piece mounting rod is rotatably arranged on the supporting plate, each friction locking piece is arranged at the top end of each friction locking piece mounting rod, a controlled section is arranged at the bottom end of each friction locking piece mounting rod, two ends of each first spring are respectively connected with the supporting plate and each friction locking piece mounting rod, the first spring pulls the friction locking piece mounting rods to force initial states of the friction locking pieces to cling to the brake ring to lock the automatic positioning film roll mounting shafts, the automatic control units are arranged on the supporting plate, and the action ends of the automatic control units prop against the controlled sections of the friction locking piece mounting rods. The automatic control unit controls the friction locking member mounting rod to rotate by operating the controlled section of the friction locking member mounting rod so that the friction locking member is closely attached to the brake ring to lock the automatic positioning film roll mounting shaft (initial state), or the friction locking member is away from the brake ring so that the automatic positioning film roll mounting shaft can rotate (working state).

Preferably, the friction locking piece is a friction hook, the middle part of the friction hook is hinged with a friction locking piece installation rod, and the bottom end of the friction hook is connected with the friction locking piece installation rod through a second spring. The second spring has the function of enabling the friction hook to be better clung to the brake ring in an initial state, and increasing friction force.

In a more preferable scheme, the working face of the friction hook is crescent-shaped. Therefore, the contact with the circumferential surface of the brake ring can be well maintained, and enough friction force between the brake ring and the brake ring is ensured.

The preferred scheme, automatic control unit is including putting membrane take-up shaft, control swing arm, tensioning cylinder installation axle, two tensioning cylinder swing arms, tensioning cylinder installation axle rotationally installs in the backup pad, tensioning cylinder, control swing arm, two tensioning cylinder swing arm rear ends are installed respectively at tensioning cylinder installation epaxially, two tensioning cylinder swing arms are located tensioning cylinder installation axle both sides respectively, put membrane take-up shaft both ends rotationally install respectively at two tensioning cylinder swing arm front ends, automatic control unit's action end is the control swing arm top. When the film tensioning device works, the film passing through the tensioning roller mounting shaft is in a stretching state, the tensioning roller mounting shaft rotates relative to the tensioning roller mounting shaft, then the control swing arm rotates, the top end of the control swing arm presses the controlled section of the friction locking piece mounting rod, the friction locking piece mounting rod rotates, and the friction locking piece is far away from the brake ring so that the automatic positioning film roll mounting shaft can rotate (working state).

The better scheme, send membrane mechanism still includes automatic positioning membrane and roll up installation axle adjustment mechanism, automatic positioning membrane rolls up installation axle adjustment mechanism and includes drive unit and adjusting unit, and drive unit, adjusting unit are installed respectively in the backup pad, and adjusting unit includes regulating plate, adjusting screw, and automatic positioning membrane rolls up the installation axle and can install in the backup pad along axial sliding, and adjusting screw one end is connected automatic positioning membrane and is rolled up the installation axle, and the adjusting screw other end and regulating plate threaded connection, drive unit and regulating plate are connected. The driving unit adjusts the position of the automatic positioning film roll mounting shaft by controlling the axial movement of the adjusting plate along the automatic positioning film roll mounting shaft, so that the automatic positioning film roll mounting shaft can adapt to the requirement, and the center of the film roll positioned on the automatic positioning film roll mounting shaft is positioned at a proper position.

Compared with the prior art, the application has the beneficial effects that the heights of the upper transverse sealing and cutting unit and the lower transverse sealing and cutting unit are adjustable due to the arrangement of the supporting plate height adjusting mechanism; the driving unit can accurately drive the first guide wheel and the second guide wheel to move due to ingenious structural design of the driving mechanism and the auxiliary positioning mechanism, and the auxiliary positioning mechanism enables the upper transverse sealing and cutting unit and the lower transverse sealing and cutting unit to move very stably; the structure of the middle sealing mechanism is improved, so that the adjustment of the material pressing unit, the cold sealing unit and the heat sealing unit is more convenient and faster, the structural design is more reasonable, and the mutual coordination among the components is better; because the automatic locking device is not under the action of the film tension, the friction locking piece is tightly attached to the brake ring, so that the automatic positioning film roll mounting shaft can be quickly and automatically locked during shutdown, and the film is prevented from loosening.

Drawings

FIG. 1 is a schematic view of the construction of a preferred embodiment of the present application; FIG. 2 is a schematic view of the structure of the transverse sealing and cutting mechanism according to the preferred embodiment of the present application;

FIG. 3 is a schematic view of a support plate of FIG. 2;

FIG. 4 is a schematic illustration of the structure of FIG. 3 with the first and second idler drivers removed;

FIG. 5 is a schematic view of the seal mechanism of the preferred embodiment of FIG. 1;

FIG. 6 is a schematic view of the structure of the cold seal unit of the preferred embodiment shown in FIG. 1;

FIG. 7 is a schematic view of another angle of the cold seal unit of the preferred embodiment shown in FIG. 1;

FIG. 8 is a schematic view of the structure of a portion of the location of the second chill roll of the preferred embodiment of FIG. 1;

FIG. 9 is a schematic view of the heat seal mechanism of the preferred embodiment of FIG. 1;

FIG. 10 is an enlarged view of the heat seal roller spacing adjustment mechanism of the preferred embodiment shown in FIG. 1;

FIG. 11 is a schematic view of the heat seal mechanism of the preferred embodiment of FIG. 1;

FIG. 12 is a schematic view showing the structure of a film feeding mechanism according to a preferred embodiment of the present application;

FIG. 13 is a rear view of FIG. 12;

FIG. 14 is a partial top view of FIG. 13;

FIG. 15 is a rear view of the two automatic locking devices of FIG. 13;

fig. 16 is an enlarged perspective view of the automatic locking device positioned at the left side in fig. 15.

Detailed Description

As shown in fig. 1 to 16, the packaging machine in the preferred embodiment comprises a frame 1, a film feeding mechanism 2, a material conveying mechanism 3, a middle sealing mechanism 4 and a transverse sealing and cutting mechanism 5 which are arranged on the frame 1.

The transverse sealing and cutting mechanism 5 comprises a bracket 501, a driving mechanism connected with a driving device, an upper transverse sealing and cutting unit 503 and a lower transverse sealing and cutting unit 504, wherein the bracket 501 is installed on the frame 1, two sides of the bracket 501 are respectively provided with a supporting plate 505, two supporting plates 505 are respectively provided with an upper transverse sealing and cutting unit motion limiting groove 50501 and a lower transverse sealing and cutting unit motion limiting groove 50502, two sides of the upper transverse sealing and cutting unit 503 are respectively provided with a first guide wheel 506, two sides of the lower transverse sealing and cutting unit 504 are respectively provided with a second guide wheel 507, the two first guide wheels 506 are respectively located in the two upper transverse sealing and cutting unit motion limiting grooves 50501, the two second guide wheels 507 are respectively located in the two lower transverse sealing and cutting unit motion limiting grooves 50502, and the driving mechanism drives the upper transverse sealing and cutting unit 503 and the lower transverse sealing and cutting unit 504 to move.

The support 501 both sides all are equipped with perpendicular backup pad sliding tray 50101 that extends, and two backup pads 505 slidably set up respectively in corresponding backup pad sliding tray 50101 to two backup pad 505 bottoms are connected through connecting plate 512, and support 501 bottom is equipped with backup pad height adjustment mechanism 511, and backup pad height adjustment mechanism 511 includes the regulation pivot 51101, 2 adjustment unit 51102 that are connected with drive arrangement. The adjusting unit 51102 includes a screw 511021, a nut 511022, two bevel gears 511023, an adjusting shaft 51101 rotatably mounted on the frame 1, a nut 511022 fixed on the connection plate 512, a screw 511021 rotatably mounted on the bracket 501, two bevel gears 511023 respectively mounted on the bottom end of the screw 511021 and the adjusting shaft 51101 and two bevel gears 511023 engaged with each other. The driving device drives the adjusting rotating shaft 51101 to rotate, and the rotation is converted into the lifting movement of the nut 511022 along the screw 511021 through the two bevel gears 511023, so that the heights of the upper transverse sealing and cutting unit 503 and the lower transverse sealing and cutting unit 504 are adjusted.

The two support plates 505 are provided with auxiliary positioning mechanisms 508, the auxiliary positioning mechanisms 508 comprise a vertical moving rail 50801 and two horizontal moving rails 50802 which are parallel to each other, the two horizontal moving rails 50802 are respectively arranged on the support plates 505 and extend along the horizontal direction, the two horizontal moving rails 50802 are respectively provided with a horizontal sliding block 50803, the two horizontal sliding blocks 50803 are respectively connected with the vertical moving rail 50801, the vertical moving rail 50801 is provided with two vertical sliding blocks 50804, and the two vertical sliding blocks 50804 are respectively connected with the upper transverse sealing and cutting unit 503 and the lower transverse sealing and cutting unit 504.

The auxiliary positioning mechanism 508 is formed by mutually matching one vertical moving rail 50801, two vertical sliding blocks 50804, two horizontal moving rails 50802 and two horizontal sliding blocks 50803, so that the positions of one end of the upper transverse sealing and cutting unit 503 and one end of the lower transverse sealing and cutting unit 504 are well defined, and therefore, the two auxiliary positioning mechanisms 508 work synchronously, so that the upper transverse sealing and cutting unit 503 and the lower transverse sealing and cutting unit 504 can move very stably, the auxiliary positioning mechanism 508 has a simple structure, low manufacturing cost, difficult problem occurrence and easier manufacturing and maintenance.

The driving mechanism includes a rotating shaft 50201 connected with the driving device, two driving units 50202, two ends of the rotating shaft 50201 are respectively rotatably installed on the two supporting plates 505, the two driving units 50202 are respectively provided on the two supporting plates 505, each driving unit 50202 includes a driving wheel 502021, a driven wheel 502022, a driving belt 502023, a first guide wheel driving piece, a second guide wheel driving piece, a first synchronizing gear 502024 and a second synchronizing gear 502025, the driving wheel 502021 is installed at one end of the rotating shaft 50201, the driven wheel 502022, the second synchronizing gear 502025 and the second guide wheel driving piece are coaxially fixed, the driving belt 502023 is sleeved on the driving wheel 502021 and the driven wheel 502022, the first synchronizing gear 502024 and the first guide wheel driving piece are coaxially fixed, and the first synchronizing gear 502024 and the second synchronizing gear 502025 are meshed.

The first guide wheel driving piece is a first driving disc 502026, a first driving groove 5020261 is formed in the first driving disc 502026, a first positioning seat 5020262 is arranged in the first driving groove 5020261, the first guide wheel 506 is provided with a first positioning shaft 509, the first positioning shaft 509 is mounted on the first positioning seat 5020262, and the first guide wheel 506 is rotatably mounted on the first positioning shaft 509.

The second guide wheel driving piece is a second driving disc 502027, a second driving groove 5020271 is formed in the second driving disc 502027, a second positioning seat 5020272 is arranged in the second driving groove 5020271, the second guide wheel 507 is provided with a second positioning shaft 510, the second positioning shaft 510 is mounted on the second positioning seat 5020272, and the second guide wheel 507 is rotatably mounted on the second positioning shaft 510.

The driving unit 50202 further includes a pinch roller 502028, the pinch roller 502028 is rotatably installed on the support plate 505, and the pinch roller 502028 presses the transmission belt 502023 from inside to outside.

The upper transverse sealing and cutting unit 503 comprises an upper cross beam 50301 and an upper transverse sealing and cutting die 50302, two ends of the upper cross beam 50301 are connected with corresponding vertical sliding blocks 50804 and corresponding first guide wheel driving pieces, and the upper transverse sealing and cutting die 50302 is mounted on the bottom surface of the upper cross beam 50301.

The lower transverse sealing and cutting unit 504 includes a lower beam 50401 and a lower transverse sealing and cutting die 50402, two ends of the lower beam 50401 are connected with corresponding vertical sliding blocks 50804 and corresponding second guide wheel driving pieces, and the lower transverse sealing and cutting die 50402 is mounted on the bottom surface of the lower beam 50401.

The following describes the working process: the rotation shaft 50201 connected with the driving device is driven by the driving device (in this embodiment, a motor gear set) to rotate, the two driving units 50202 drive the upper transverse sealing and cutting unit 503 and the lower transverse sealing and cutting unit 504 to move, and the two auxiliary positioning mechanisms 508 work synchronously, so that the upper transverse sealing and cutting unit 503 and the lower transverse sealing and cutting unit 504 can move very stably.

The cold seal unit 42 includes a first support frame 421, a cold seal roller transmission mechanism 422 mounted on the first support frame 421, a cold seal roller spacing adjustment mechanism 423, a first cold seal roller 424, and a second cold seal roller 425, where the first support frame 421 is mounted on the frame 1, the cold seal roller spacing adjustment mechanism 423 is mounted on the first support frame 421, the first cold seal roller 424 and the second cold seal roller 425 are respectively vertically disposed, one cold seal roller is rotatably mounted on the first support frame 421, the other cold seal roller is mounted on the cold seal roller spacing adjustment mechanism 423, the cold seal roller transmission mechanism 422 includes a first transmission gear set 4221 (in this embodiment, a bevel gear set is used), a first synchronizing gear 4222, a second synchronizing gear 4223, and a first transverse rotation shaft 4224 connected with the driving device, where the first transverse rotation shaft 4224 drives the first cold seal roller 424 to rotate through the first transmission gear set 21, the first synchronizing gear 4222 corresponds to the first coaxial seal roller 424, the second synchronizing gear set 4223 corresponds to the first synchronizing gear set 4223, and the second synchronizing gear set 4223 is meshed with the first synchronizing gear 4223. The cold seal roller spacing adjustment mechanism 423 can achieve the purpose of enabling the first cold seal roller 424 and the second cold seal roller 425 to be contacted and separated by adjusting the spacing between the first cold seal roller 424 and the second cold seal roller 425, so that the first cold seal roller 424 and the second cold seal roller 425 are separated when the machine is stopped, and the film is prevented from being damaged.

The cold seal roller spacing adjustment mechanism 423 comprises a clutch cam 4231, a slidable rotating shaft 4232, a boss 4233, a handle 4234, a control swinging arm 4235, a control rotating shaft 4236 and a rotatable seat 4237, wherein the control rotating shaft 4236 is rotatably installed at the top of the first supporting frame 421, the middle parts of the rotatable seat 4237 and the control swinging arm 4235 are respectively fixed on the control rotating shaft 4236, the slidable rotating shaft 4232 is slidably installed at the bottom end of the control swinging arm 4235 and the slidable rotating shaft 4232 extends along the horizontal direction, the clutch cam 4231 is installed at the rear part of the slidable rotating shaft 4232, the handle 4234 is installed at the front part of the slidable rotating shaft 4232, the boss 4233 is installed on the first supporting frame 421 and the boss 4233 is opposite to the clutch cam 4231, and the second cold seal roller 425 and the second synchronous large gear 4223 are coaxially fixed on the rotatable seat 4237. By rotating the handle 4234, the clutch cam 4231 can be rotated to drive the slidable rotating shaft 4232 to move along the axial direction of the slidable rotating shaft 4232 relative to the boss 4233, so that the control swing arm 4235 is rotated, and the control rotating shaft 4236 drives the rotatable seat 4237 to rotate. When the slidable shaft 4232 moves backward, the swing arm 4235 is controlled to rotate in a clockwise direction, such that the control shaft 4236 drives the rotatable base 4237 to rotate in a clockwise direction, such that the second chill roll 425 is away from the first chill roll 424. When the slidable rotating shaft 4232 moves forward, the control swing arm 4235 rotates in a counterclockwise direction, such that the control rotating shaft 4236 drives the rotatable base 4237 to rotate in a counterclockwise direction, such that the second chill roll 425 moves toward the first chill roll 424 until the second chill roll 425 contacts the first chill roll 424.

The heat sealing unit 43 includes a second support frame 431, a heat sealing roller transmission mechanism 432, a heat sealing roller spacing adjustment mechanism 433, a first heat sealing roller 434, and a second heat sealing roller 435 mounted on the second support frame 431, the second support frame 431 is mounted on the frame 1, the heat sealing roller spacing adjustment mechanism 433 is mounted on the second support frame 431, the first heat sealing roller 434 and the second heat sealing roller 435 are respectively vertically disposed, the first heat sealing roller 434 is rotatably mounted on the second support frame 431, the second heat sealing roller 435 is mounted on the heat sealing roller spacing adjustment mechanism 433, the heat sealing roller transmission mechanism 432 includes a second transmission gear set 4321, a first transmission gear wheel 4322, a second transmission gear wheel 4323, a second transverse rotation shaft 4324 connected with the driving device, the second transverse rotation shaft 4324 is mounted on the second support frame 431, and the second transverse rotation shaft 4324 drives the first heat sealing roller 434 to rotate through the second transmission gear set 4321, the first transmission gear wheel 4322 corresponds to the first heat sealing roller 434 and is coaxially fixed, and the second transmission gear wheel 4323 corresponds to the second heat sealing roller 435 and is coaxially fixed, and the first transmission gear wheel 4322 and the second transmission gear wheel 4323 are meshed with each other.

The heat-seal roller spacing adjusting mechanism 433 can achieve the purpose of contacting and separating the first heat-seal roller 434 and the second heat-seal roller 435 by adjusting the spacing between the first heat-seal roller 434 and the second heat-seal roller 435, thereby separating the first heat-seal roller 434 and the second heat-seal roller 435 when the machine is stopped, and avoiding scalding the film.

The heat sealing roller interval adjusting mechanism 433 comprises an air cylinder 4331, an ejector rod 4332, a supporting seat 4333, a bearing seat 4334, a vertical rotating shaft 4335, an adjusting rod 4336 and two elastic return units 4337, wherein a bearing is arranged on the bearing seat 4334, the rear end of the air cylinder 4331 is hinged with a second supporting frame 431, a piston shaft of the air cylinder 4331 is connected with the front end of the ejector rod 4332, the rear end of the ejector rod 4332 is connected with the lower part of the supporting seat 4333, one end of the adjusting rod 4336 is connected with the bearing seat 4334, the other end of the adjusting rod 4336 penetrates through the second supporting frame 431 to be connected with the upper part of the supporting seat 4333, the lower part of the bearing seat 4334 is hinged with the second supporting frame 431, two ends of the elastic return units 4337 are respectively connected with the upper part of the bearing seat 4334 and the second supporting frame 431, the vertical rotating shaft 4335 is rotatably arranged in the bearing of the bearing seat 4334, and a second transmission large gear 4323 and a second heat sealing roller 435 are respectively arranged on the vertical rotating shaft 4335. When the first heat-seal roller 434 and the second heat-seal roller 435 need to be separated (at the time of stopping), the piston shaft of the air cylinder 4331 pushes the push rod 4332 forwards, at this time, the air cylinder 4331 rotates, the rear end of the push rod 4332 presses the support seat 4333 backwards, the support seat 4333 rotates to drive the adjusting rod 4336 to move forwards, so that the bearing seat 4334 is forced to move forwards along with the adjusting rod 4336, the second heat-seal roller 435 is far away from the first heat-seal roller 434, and the purpose of separating the first heat-seal roller 434 and the second heat-seal roller 435 is achieved. When the cylinder 4331 stops working, the bearing block 4334 returns to the original position by the elastic return unit 4337, and the first heat-seal roller 434 and the second heat-seal roller 435 are restored to contact.

The two elastic return units 4337 are respectively positioned at two sides of the bearing seat 4334. By the design, the bearing seat 4334 is stressed more uniformly. In this embodiment, the elastic return unit 4337 is a spring.

The ejector rod 4332 is 7-shaped.

The heat-seal roller transmission mechanism 432 further comprises a driven wheel connected with the driving device, and the driven wheel is installed on the second transverse rotating shaft 4324. The driving device drives the second transverse rotating shaft 4324 to rotate through the driven wheel.

The material pressing unit 41 comprises a supporting plate 411, a material pressing mechanism 412, a supporting plate adjusting device 413 and a material pressing mechanism adjusting device 414, wherein the supporting plate 411 is hinged to the frame 1, the supporting plate adjusting device 413 is installed on the supporting plate 411, the bottom end of the supporting plate adjusting device 413 abuts against the top surface of the middle sealing cover plate 44, the supporting plate 411 is provided with a base plate 415, the material pressing mechanism 412 is hinged to the supporting plate 411, the material pressing mechanism adjusting device 414 is installed on the material pressing mechanism 412, and the bottom end of the material pressing mechanism adjusting device 414 abuts against the base plate.

The support plate adjusting device 413 includes a first hand wheel 4131, a first screw 4132, and a first nut 4133, the first nut 4133 is mounted on the support plate 411, the first screw 4132 is vertically disposed and passes through the first nut 4133 from top to bottom to abut against the top surface of a middle cover plate 44, and the first hand wheel 4131 is mounted on the top end of the first screw 4132. By rotating the first hand wheel 4131, the first nut 4133 on the first screw 4132 can be lifted or lowered, thereby lifting the support plate 411.

The pressing mechanism adjusting device 414 includes a second hand wheel 4141, a second screw 4142, and a second nut 4143, the second nut 4143 is mounted on the pressing mechanism 412, the second screw 4142 is vertically disposed and passes through the second nut 4143 from top to bottom to abut against the backing plate 415, and the second hand wheel 4141 is mounted on the top end of the second screw 4142. By rotating the second hand wheel 4141, the second nut 4143 on the second screw 4142 can be raised or lowered, thereby driving the pressing mechanism 412 to raise and lower the portion.

The film feeding mechanism 2 comprises a supporting plate 201, a plurality of guide rollers 202 and two automatic positioning film roll mounting shafts 203 which are mounted on the supporting plate 201, wherein the two automatic positioning film roll mounting shafts 203 are respectively provided with an automatic locking device 204 corresponding to the two automatic positioning film roll mounting shafts, one side of each automatic positioning film roll mounting shaft 203 is provided with a brake ring 205, each automatic locking device 204 comprises an automatic control unit 20401 and a friction locking piece, a friction locking piece mounting rod 20403 and a first spring 20404, the middle part of each friction locking piece mounting rod 20403 is rotatably mounted on the supporting plate 201, the friction locking piece is mounted on the top end of each friction locking piece mounting rod 20403, a controlled section 204031 is arranged at the bottom end of each friction locking piece mounting rod 20403, two ends of each first spring 20404 are respectively connected with the supporting plate 201 and the friction locking piece mounting rod 20403, the friction locking piece mounting rod 20403 is pulled by the first spring 20404 to force the friction locking piece initial state to be tightly locked by the brake rings 205, the automatic control unit 20401 is mounted on the supporting plate 201, and the action end of the automatic control unit 20401 is in friction locking piece mounting rod 20401 abuts against the controlled section 204031 of the friction locking piece mounting rod 03.

The automatic control unit 20401 controls the friction lock mounting lever 20403 to rotate by operating the controlled section 204031 of the friction lock mounting lever 20403 so that the friction lock is brought into close contact with the brake ring 205 to lock the automatic positioning film roll mounting shaft 203 (initial state), or the friction lock is moved away from the brake ring 205 so that the automatic positioning film roll mounting shaft 203 can rotate (working state).

The friction locking piece is a friction hook 20402, the middle part of the friction hook 20402 is hinged with a friction locking piece mounting rod 20403, and the bottom end of the friction hook 20402 is connected with the friction locking piece mounting rod 20403 through a second spring 20405. The second spring 20405 is used for enabling the friction hook 20402 to be better clung to the brake ring 205 in the initial state, and increasing friction force.

The working surface of the friction hook 20402 is crescent-shaped. This can better maintain contact with the circumferential surface of the brake ring 205, ensuring sufficient friction between the two.

The automatic control unit 20401 comprises a film releasing tensioning shaft 204011, a control swing arm 204012, a tensioning roller 204013, a tensioning roller mounting shaft 204014 and two tensioning roller swing arms 204015, the tensioning roller mounting shaft 204014 is rotatably mounted on the supporting plate 201, the tensioning roller 204013, the control swing arm 204012 and the rear ends of the two tensioning roller swing arms 204015 are respectively mounted on the tensioning roller mounting shaft 204014, the two tensioning roller swing arms 204015 are respectively located on two sides of the tensioning roller mounting shaft 204014, two ends of the film releasing tensioning shaft 204011 are respectively rotatably mounted on the front ends of the two tensioning roller swing arms 204015, and the action end of the automatic control unit 20401 is the top end of the control swing arm 204012. When in operation, the film passing through the tensioning roller mounting shaft 204014 is in a stretched state, so that the tensioning roller mounting shaft 204014 rotates relative to the tensioning roller mounting shaft 204014, the control swing arm 204012 rotates accordingly, the top end of the control swing arm 204012 presses the controlled section 204031 of the friction locking member mounting rod 20403, the friction locking member mounting rod 20403 rotates, and the friction locking member is far away from the brake ring 205, so that the automatic positioning film roll mounting shaft 203 can rotate (in an operating state).

The roller 204016 is installed at the top end of the control swing arm 204012. This facilitates control of the contact between the top end of the swing arm 204012 and the controlled section 204031 of the friction lock mounting lever 20403, avoiding excessive wear and excessive rapid damage of the two during prolonged operation due to frequent contact.

The controlled section 204031 of the friction lock mounting bar 20403 is right trapezoid in cross section with the hypotenuse of the right trapezoid facing the top of the control swing arm 204012. This facilitates avoiding damage caused by excessive pressure on the top end of the control swing arm 204012 when the top end of the control swing arm 204012 contacts the controlled section 204031 of the friction lock mounting bar 20403.

The film feeding mechanism 2 further comprises an automatic positioning film roll mounting shaft adjusting mechanism 206, the automatic positioning film roll mounting shaft adjusting mechanism 206 comprises a driving unit 20601 and an adjusting unit 20602, the driving unit 20601 and the adjusting unit 20602 are respectively arranged on the supporting plate 201, the adjusting unit 20602 comprises an adjusting plate 206021 and an adjusting screw 206022, the automatic positioning film roll mounting shaft 203 can be axially and slidably arranged on the supporting plate 201, one end of the adjusting screw 206022 is connected with the automatic positioning film roll mounting shaft 203, the other end of the adjusting screw 206022 is in threaded connection with the adjusting plate 206021, and the driving unit 20601 is connected with the adjusting plate 206021. The driving unit 20601 adjusts the position of the automatically positioning film roll mounting shaft 203 by controlling the axial movement of the adjusting plate 206021 along the automatically positioning film roll mounting shaft 203 so that the center of the film roll positioned on the automatically positioning film roll mounting shaft 203 is positioned at a proper position as needed.

The driving unit 20601 comprises a driving wheel 206011 connected with the driving device, a chain 206012 and two adjusting devices 206013, the adjusting device 206013 comprises a driven gear 2060131 and a screw rod 2060132, the driven gear 2060131 is rotatably arranged on the supporting plate 201, the screw rod 2060132 is coaxially fixed with the driven gear 2060131, the screw rod 2060132 is in threaded connection with the adjusting plate 206021, and the driving wheel 206011 is connected with the driven gear 2060131 through the chain 206012. The driving device drives the driving wheel 206011 to rotate, the driving wheel 206011 drives the driven gear 2060131 of the adjusting device 206013 to rotate through the chain 206012, so that the screw 2060132 rotates, and the adjusting plate 206021 moves along the axial direction of the automatic positioning film roll mounting shaft 203, thereby adjusting the position of the automatic positioning film roll mounting shaft 203.

In addition, it should be noted that, in the specific embodiments described in the present specification, names of various parts and the like may be different, and all equivalent or simple changes of the structures, features and principles described in the conception of the present application are included in the protection scope of the present application. Those skilled in the art may make various modifications or additions to the described embodiments or substitutions in a similar manner without departing from the scope of the application as defined in the accompanying claims.

Claims

1. The utility model provides a packagine machine, includes the frame, installs film feeding mechanism, material conveying mechanism, well sealing mechanism, horizontal sealing and cutting mechanism in the frame, its characterized in that: the transverse sealing and cutting mechanism comprises a support, a driving mechanism connected with a driving device, an upper transverse sealing and cutting unit and a lower transverse sealing and cutting unit, wherein the support is arranged on a frame, support plates are respectively arranged on two sides of the support, an upper transverse sealing and cutting unit movement limiting groove and a lower transverse sealing and cutting unit movement limiting groove are respectively arranged on two support plates, first guide wheels are respectively arranged on two sides of the upper transverse sealing and cutting unit, second guide wheels are respectively arranged on two sides of the lower transverse sealing and cutting unit, the two first guide wheels are respectively positioned in the two upper transverse sealing and cutting unit movement limiting grooves, the two second guide wheels are respectively positioned in the two lower transverse sealing and cutting unit movement limiting grooves, and the driving mechanism connected with the driving device drives the upper transverse sealing and cutting unit and the lower transverse sealing and cutting unit to move; the support both sides all are equipped with the backup pad sliding tray that vertically extends, two backup pads slidable ground set up respectively in the backup pad sliding tray that corresponds, and two backup pad bottoms are connected through the connecting plate, the support bottom is equipped with backup pad height adjustment mechanism, backup pad height adjustment mechanism includes the regulation pivot of being connected with drive arrangement, at least one adjusting unit, adjusting unit includes the screw rod, the nut, two bevel gears, the regulation pivot is rotationally installed in the frame, the nut is fixed on the connecting plate, the screw rod is rotationally installed on the support, two bevel gears are installed respectively in screw rod bottom and regulation pivot and two bevel gears intermeshing.

2. The packaging machine of claim 1, wherein: the two support plates are respectively provided with an auxiliary positioning mechanism, the auxiliary positioning mechanism comprises a vertical moving rail and two horizontal moving rails which are parallel to each other, the two horizontal moving rails are respectively arranged on the support plates and extend along the horizontal direction, the two horizontal moving rails are respectively provided with a horizontal sliding block, the two horizontal sliding blocks are respectively connected with the vertical moving rails, the vertical moving rails are provided with two vertical sliding blocks, and the two vertical sliding blocks are respectively connected with the upper transverse sealing and cutting unit and the lower transverse sealing and cutting unit.

3. The packaging machine of claim 1, wherein: the middle sealing mechanism comprises a pressing unit, a cold sealing unit, a heat sealing unit and two middle sealing cover plates, wherein the two middle sealing cover plates are respectively arranged on the frame, the pressing unit is positioned above the two middle sealing cover plates, and the cold sealing unit and the heat sealing unit are positioned below the two middle sealing cover plates; the heat sealing unit comprises a second support frame, a heat sealing roller transmission mechanism, a heat sealing roller spacing adjusting mechanism, a first heat sealing roller and a second heat sealing roller, wherein the heat sealing roller transmission mechanism, the heat sealing roller spacing adjusting mechanism, the first heat sealing roller and the second heat sealing roller are arranged on the second support frame, the first heat sealing roller and the second heat sealing roller are respectively and vertically arranged, the first heat sealing roller is rotatably arranged on the second support frame, the second heat sealing roller is arranged on the heat sealing roller spacing adjusting mechanism, the heat sealing roller transmission mechanism comprises a second transmission gear set, a first transmission gear wheel, a second transmission gear wheel and a second transverse rotating shaft connected with a driving device, the second transverse rotating shaft is arranged on the second support frame, the second transverse rotating shaft drives the first heat sealing roller to rotate through the second transmission gear set, the first transmission gear wheel corresponds to the first heat sealing roller and is coaxially fixed, the second transmission gear wheel corresponds to the second heat sealing roller and is coaxially fixed, and the first transmission gear wheel and the second transmission gear wheel are meshed with each other.

4. A packaging machine as claimed in claim 3, characterized in that: the heat sealing roller interval adjusting mechanism comprises an air cylinder, an ejector rod, a supporting seat, a bearing seat, a vertical rotating shaft, an adjusting rod and at least one elastic return unit, wherein a bearing is arranged on the bearing seat, the rear end of the air cylinder is hinged with a second supporting frame, a piston shaft of the air cylinder is connected with the front end of the ejector rod, the rear end of the ejector rod is connected with the lower part of the supporting seat, the two ends of the adjusting rod are respectively connected with the upper part of the supporting seat and the bearing seat, the lower part of the bearing seat is hinged with the second supporting frame, the two ends of the elastic return unit are respectively connected with the upper part of the bearing seat and the second supporting frame, the vertical rotating shaft is rotatably arranged in the bearing of the bearing seat, and a second transmission large gear and a second heat sealing roller are respectively arranged on the vertical rotating shaft.

5. A packaging machine as claimed in any one of claims 1-4, characterized in that: the film feeding mechanism comprises a supporting plate, at least one guide roller and at least two automatic positioning film roll mounting shafts, wherein the guide roller and the at least two automatic positioning film roll mounting shafts are arranged on the supporting plate, an automatic locking device corresponding to the automatic positioning film roll mounting shafts is arranged on the automatic positioning film roll mounting shafts, a brake ring is arranged on one side of each automatic positioning film roll mounting shaft, each automatic locking device comprises an automatic control unit, a friction locking piece mounting rod and a first spring, the middle part of each friction locking piece mounting rod is rotatably arranged on the supporting plate, each friction locking piece is arranged at the top end of each friction locking piece mounting rod, a controlled section is arranged at the bottom end of each friction locking piece mounting rod, two ends of each first spring are respectively connected with the supporting plate and each friction locking piece mounting rod, the first spring pulls the friction locking piece mounting rods to force initial states of the friction locking pieces to cling to the brake ring to lock the automatic positioning film roll mounting shafts, the automatic control units are arranged on the supporting plate, and the action ends of the automatic control units prop against the controlled sections of the friction locking piece mounting rods.

6. The packaging machine of claim 5, wherein: the friction locking piece is a friction hook, the middle part of the friction hook is hinged with a friction locking piece installation rod, and the bottom end of the friction hook is connected with the friction locking piece installation rod through a second spring.

7. The packaging machine of claim 6 wherein: the working face of the friction hook is crescent.

8. The packaging machine of claim 5, wherein: the automatic control unit comprises a film releasing tensioning shaft, a control swing arm, a tensioning roller mounting shaft and two tensioning roller swing arms, wherein the tensioning roller mounting shaft is rotatably mounted on a supporting plate, the tensioning roller, the control swing arm and the rear ends of the two tensioning roller swing arms are respectively mounted on the tensioning roller mounting shaft, the two tensioning roller swing arms are respectively located on two sides of the tensioning roller mounting shaft, the two ends of the film releasing tensioning shaft are respectively rotatably mounted at the front ends of the two tensioning roller swing arms, and the action end of the automatic control unit is the top end of the control swing arm.

9. The packaging machine of claim 5, wherein: the film feeding mechanism further comprises an automatic positioning film roll mounting shaft adjusting mechanism, the automatic positioning film roll mounting shaft adjusting mechanism comprises a driving unit and an adjusting unit, the driving unit and the adjusting unit are respectively arranged on the supporting plate, the adjusting unit comprises an adjusting plate and an adjusting screw, the automatic positioning film roll mounting shaft can be axially slidably arranged on the supporting plate, one end of the adjusting screw is connected with the automatic positioning film roll mounting shaft, the other end of the adjusting screw is in threaded connection with the adjusting plate, and the driving unit is connected with the adjusting plate.