CN113619880B

CN113619880B - Anticollision heat sealing machine

Info

Publication number: CN113619880B
Application number: CN202111192152.2A
Authority: CN
Inventors: 黄红梅; 范杰; 牧律
Original assignee: Nantong Gaobo Blister Co ltd
Current assignee: Nantong Gaobo Blister Co ltd
Priority date: 2021-10-13
Filing date: 2021-10-13
Publication date: 2021-12-17
Anticipated expiration: 2041-10-13
Also published as: CN113619880A

Abstract

The invention discloses an anti-collision heat sealing machine which comprises a bottom plate and a heat sealing and cutting mechanism positioned on the bottom plate; the top of bottom plate is fixed with the slide rail, and heat-seal cutting mechanism's bottom is fixed with the slider with slide rail sliding fit, the both ends of slide rail are equipped with the bumping post. The anti-collision device is characterized in that a ball track extending to the end face of the anti-collision column is arranged in the anti-collision column, a plurality of anti-collision balls are arranged in the ball track in a connected mode, the anti-collision balls located at two ends protrude out of the end face of the anti-collision column, and when the anti-collision column collides with the sliding block, the anti-collision balls are in surface contact with the sliding block. According to the invention, the ball track is arranged on the anti-collision column, and the ball track is provided with the plurality of anti-collision balls, when the anti-collision column collides with the slide block, the slide block is contacted with the anti-collision balls at two ends, and part of thrust of the slide block to the anti-collision balls can be transferred to extrude the adjacent anti-collision balls, so that the forward impact force is weakened, the vibration of the mechanism is reduced, and the displacement of a movable part in the mechanism is avoided.

Description

Anticollision heat sealing machine

Technical Field

The invention relates to the technical field of heat sealing machines, in particular to an anti-collision heat sealing machine.

Background

In order to adjust the tension force of the film according to the material of the film, a heat sealing cutting mechanism in the heat sealing machine needs to be capable of moving between an input roller assembly or an output roller assembly, and the heat sealing cutting mechanism is heavy in mass and can impact with a limiting structure of a terminal point due to huge inertia force when moving to the terminal point, so that vibration is generated, the position of a heat sealing plate or a sealing knife in the heat sealing cutting mechanism is easily changed, the heat sealing precision is influenced, and therefore the anti-collision heat sealing machine capable of reducing the impact force needs to be designed.

Disclosure of Invention

The invention provides an anti-collision heat sealing machine to solve the technical problems that when a heat sealing and cutting mechanism in the prior art is moved, the heat sealing machine collides with a limit structure of a terminal point due to huge inertia force, so that vibration is generated, the position of a heat sealing plate or a sealing knife in the heat sealing and cutting mechanism is changed easily, and the heat sealing precision is affected.

The technical scheme adopted by the invention for solving the technical problems is as follows: an anti-collision heat sealing machine comprises a bottom plate and a heat sealing and cutting mechanism positioned on the bottom plate; the top of bottom plate is fixed with the slide rail, and heat-seal cutting mechanism's bottom is fixed with the slider with slide rail sliding fit, the both ends of slide rail are equipped with the bumping post.

The anti-collision device is characterized in that a ball track extending to the end face of the anti-collision column is arranged in the anti-collision column, a plurality of anti-collision balls are arranged in the ball track in a connected mode, the anti-collision balls located at two ends of the plurality of anti-collision balls protrude out of the end face of the anti-collision column, and when the anti-collision column collides with the sliding block, the anti-collision balls are in surface contact with the sliding block.

Furthermore, a limiting groove suitable for inserting the anti-collision ball is further formed in the end face, opposite to the anti-collision column, of the sliding block.

Furthermore, the caliber of the opening at the two ends of the ball track is smaller than the diameter of the anti-collision ball, so that the anti-collision ball is limited in the ball track.

Further, the ball track extends in a circular arc shape.

Furthermore, one side or two sides of the sliding rail on the sliding block are provided with deformation grooves which are penetrated along the moving direction of the sliding block, and the deformation grooves extend to the bottom of the sliding block.

Furthermore, the heat-seal cutting mechanism comprises heat-seal plates, a seal knife positioned between the two heat-seal plates, a frame fixed with the base plate and a workbench, wherein the frame is connected with a hydraulic oil cylinder, and the hydraulic oil cylinder drives the heat-seal plates and the seal knife to be close to or far away from the workbench.

Furthermore, the sealing knife is clamped between the two heat sealing plates, so that the heat sealing plates can drive the sealing knife to lift, and the sealing knife can move up and down relative to the heat sealing plates.

Further, the workbench comprises a heat sealing platform positioned right below the heat sealing plate and a movable platform positioned right below the sealing knife; the tail end of the sealing knife is provided with a sharp-pointed part, the top of the movable platform is provided with a groove suitable for the sharp-pointed part to extend into, and when the heat sealing plate is contacted with the heat sealing platform, the sharp-pointed part is abutted against the inner wall surface of the groove.

Furthermore, the limiting groove is provided with one limiting groove, and when the anti-collision column collides with the sliding block, the anti-collision balls can move towards one end of the ball track, so that the anti-collision balls opposite to the limiting groove are inserted into the limiting groove.

The invention has the beneficial effects that:

(1) according to the anti-collision heat sealing machine, the ball tracks are arranged on the anti-collision columns, and meanwhile the ball tracks are provided with the anti-collision balls, when the anti-collision columns collide with the sliding blocks, the sliding blocks are in contact with the anti-collision balls at the two ends, and part of thrust of the sliding blocks to the anti-collision balls can be transferred to extrude the adjacent anti-collision balls, so that the forward impact force is weakened, the vibration of a mechanism is reduced, and the displacement of a movable part in the mechanism is avoided.

(2) According to the anti-collision heat sealing machine, the sliding block is also provided with the limiting groove suitable for the anti-collision ball to insert, so that the anti-collision ball can be positioned.

(3) According to the anti-collision heat sealing machine, the deformation groove penetrating along the movement direction of the sliding block is formed in one side or two sides of the sliding block, when the sliding block is installed on the sliding rail, the part, contacting with the sliding rail, of the sliding block can be extruded and deformed towards the deformation groove, and therefore the sliding block can be clamped on the sliding rail.

(4) The sealing knife moves up and down by the action of the two heat-sealing plate strips, and can realize two operations of heat sealing and cutting only by the hydraulic oil cylinder which is a driving mechanism, thereby greatly simplifying the structure of the whole machine.

Drawings

The invention is further illustrated with reference to the following figures and examples.

FIG. 1 is a perspective view of an embodiment of a film heat sealer of the present invention;

FIG. 2 is a front view of an embodiment of the film heat sealer of the present invention;

FIG. 3 is a sectional view taken along line A-A of FIG. 2;

FIG. 4 is an enlarged view taken at a in FIG. 1;

FIG. 5 is an enlarged view of FIG. 2 at b;

FIG. 6 is an enlarged view of FIG. 2 at c (with the movable platform not depressed);

FIG. 7 is a schematic view of the engagement between the sealing knife and the cutting platform assembly when the movable platform is pressed down;

FIG. 8 is a sectional view taken along line B-B of FIG. 2;

FIG. 9 is a cross-sectional view taken along line D-D of FIG. 8;

FIG. 10 is a schematic view of the position relationship between the elastic supporting member and the base;

FIG. 11 is an enlarged view taken at d in FIG. 1;

FIG. 12 is an enlarged view at e in FIG. 8;

FIG. 13 is a layout view of the crash balls in the crash column;

fig. 14 is an enlarged view at f in fig. 13.

In the figure, 1, a frame, 101, a bottom plate, 102, a top plate, 103, a guide post, 104, a lifting plate, 105, an intermediate plate, 2, a hydraulic oil cylinder, 3, a heat sealing plate, 301, a bending part, 4, a sealing knife, 401, a pulling plate, 402, a spine part, 403, an arc contact part, 5, a heat sealing platform, 501, a concave cavity, 502, an air flow channel, 503, a jack, 6, a cutting platform assembly, 601, a movable platform, 6011, a groove, 602, a base, 603, an elastic support, 604, an air bag, 605, a supporting foot, 606, an elastic sheet, 7, an adjusting spring, 8, a lifting assembly, 801, a screw rod, 802, a rotating handle, 803, a nut, 9, a limiting post, 901, a fixed post, 902, a pressure head, 903, a locking nut, 10, a sliding rail, 1001, a limiting groove, 1002, a deformation groove, 11, an anti-collision post, a ball track, 12, an anti-collision ball a, 13, a collision ball b, 14 and a necking section, 15. a slide block.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the accompanying drawings are illustrative only for the purpose of explaining the present invention, and are not to be construed as limiting the present invention.

Example one

An impact resistant heat sealer comprising:

the film packaging structure comprises a bottom plate 101, wherein the bottom plate 101 is a horizontal panel, two slide rails 10 are fixed at the top of the bottom plate 101, the two slide rails 10 are arranged on two sides of the width direction of the film, the cross section of each slide rail 10 can be rectangular, circular or any other irregular shape, and the slide rails 10 in the embodiment are of a cylindrical structure. And two ends of each slide rail 10 are fixed with crash posts 11.

The heat-seal cutting mechanism is used for implementing heat-seal and cutting operations of the film, a sliding block 15 in sliding fit with the sliding rails 10 is fixed at the bottom of the heat-seal cutting mechanism, two sliding blocks 15 are matched on each sliding rail 10, when the heat-seal cutting mechanism moves forwards, the sliding block 15 located in the front collides with the anti-collision column 11, and when the heat-seal cutting mechanism moves backwards, the sliding block 15 located behind the displacement collides with the anti-collision column 11.

The invention takes the direction close to the input end in the film conveying direction as the front, and the direction close to the output end in the film conveying direction as the rear, the film is conveyed to the heat-sealing cutting mechanism by the input roller, the film is output from the output roller after the heat-sealing and cutting operations are finished on the heat-sealing cutting mechanism, and the tension force in the front and the rear of the film is adjusted by moving the heat-sealing cutting mechanism along the front and the rear directions.

Be equipped with the ball track 1101 that extends to the terminal surface of bumping post 11 in the bumping post 11, a plurality of crashproof balls have been arranged in connecing in the ball track 1101, and lie in the terminal surface setting of the crashproof ball salient bumping post 11 at both ends among a plurality of crashproof balls, when bumping post 11 and slider 15, crashproof ball and slider 15 surface contact.

As shown in fig. 11-13, the ball track 1101 is extended in a circular arc shape, when the slider 15 hits the post 11, the slider 15 first contacts with the ball protruding from the end surface of the post 11, and then the hit ball collides with the rest of the balls inside the post 11, because the ball track 1101 has two outlets on the end surface of the post 11, the track of the ball track 1101 inside the post 11 is not parallel to the moving direction of the slider 15, that is, the impact force of the adjacent balls is inclined to the impact force of the slider 15 on the post 11, so that the impact force of the heat-sealing cutting mechanism on the post 11 can be gradually resolved by the impact of the balls in sequence, which acts as a force-relieving function, thereby reducing the mechanism vibration.

Because the anti-collision balls need to be placed in the ball track 1101, and the adjacent anti-collision balls need to be capable of colliding with each other, the diameter of the cross section inside the ball track 1101 is slightly larger than that of the anti-collision balls, and in order to limit the anti-collision balls in the ball track 1101, the outlets at the two ends of the ball track 1101 are contracted, that is, the calibers of the openings at the two ends of the ball track 1101 are smaller than that of the anti-collision balls. The caliber refers to the diameter of the end face of the ball track 1101. As shown in fig. 14, a neck section 14 with a diameter gradually decreasing from inside to outside is disposed on a portion of the ball track 1101 close to the opening, and when the anti-collision ball protrudes out of the surface of the post 11, the center of gravity of the anti-collision ball is still located in the ball track 1101, and the anti-collision ball does not fall off.

In the traditional structure, the sliding block 15 is in surface contact with the crash column 11, the crash column 11 completely bears the frontal impact force, so that the mechanism generates large vibration, and the invention decomposes the impact force of the sliding block 15 through the arc-shaped anti-collision balls, thereby reducing the frontal impact force of the sliding block 15 to the crash column 11.

The heat seal cutting mechanism may adopt, but is not limited to, the following structure: the heat-seal cutting mechanism comprises heat-seal plates 3, a seal knife 4 positioned between the two heat-seal plates 3, a rack 1 and a workbench, wherein the rack 1 and the workbench are fixed with a bottom plate 101, a film is conveyed to the workbench through an input roller, a hydraulic oil cylinder 2 is connected to the rack 1, and the hydraulic oil cylinder 2 drives the heat-seal plates 3 and the seal knife 4 to be close to or far away from the workbench.

The frame 1 is used for fixing or supporting other components in the heat sealing and cutting mechanism, the frame 1 comprises a top plate 102, an intermediate plate 105 and a guide post 103, the guide post 103 is fixed between the bottom plate 101 and the top plate 102, the intermediate plate 105 is positioned between the bottom plate 101 and the top plate 102, and the bottom plate 101, the intermediate plate 105 and the top plate 102 are arranged in parallel.

The hydraulic oil cylinder 2 is used for driving the heat sealing plate 3 to be close to or far away from the workbench, namely, the heat sealing plate 3 is driven to lift along the vertical direction, two hydraulic oil cylinders 2 are arranged, a cylinder barrel of each hydraulic oil cylinder 2 is fixed with the top plate 102, a piston rod of each hydraulic oil cylinder 2 is fixed with the middle plate 105, when the heat sealing plate 3 is large in length, the two hydraulic oil cylinders 2 are arranged to prevent the heat sealing plate 3 from inclining in the length direction (namely, in the X-axis direction), and the heat sealing plate 3 is guaranteed to lift horizontally.

The lower surface of the heat sealing plate 3 is a working surface, the heat sealing plate 3 is connected with a thermocouple, and when the thermocouple is electrified, the working surface of the heat sealing plate 3 can generate high temperature to carry out heat sealing on the film. The sealing knife 4 is fixedly connected with the heat sealing plate 3, the heat sealing plate 3 is fixedly connected with the middle plate 105, the lower surfaces of the heat sealing plate 3 and the sealing knife 4 are equal in height, two heat sealing plates 3 are arranged and located on two sides of the sealing knife 4, and films on two sides are subjected to heat sealing while the films are cut.

The workbench is positioned under the heat sealing plate 3 and the sealing knife 4, provides a conveying platform for the film, and is used for finishing heat sealing and cutting operations together with the heat sealing plate 3 and the sealing knife 4.

In this embodiment, the heat seal plate 3 and the sealing blade 4 are simultaneously brought into contact with the table, and the cutting and heat sealing operations are simultaneously performed.

In addition, because the different hydraulic oil cylinders 2 have different external dimensions, when the length of the hydraulic oil cylinder 2 is shorter, the hydraulic oil cylinder 2 needs to be adjusted downwards in order to reduce the stroke of the hydraulic oil cylinder 2, and in order to enable the frame 1 disclosed by the invention to be suitable for different hydraulic oil cylinders 2, preferably, the frame 1 further comprises a lifting plate 104, and the lifting plate 104 is in sliding connection with the guide column 103; the hydraulic cylinder 2 is fixed on the lifting plate 104, and the lifting assembly 8 which is suitable for driving the lifting plate 104 to do lifting motion is arranged on the top plate 102. As shown in fig. 1 and 2, the lifting plate 104 is located below the top plate 102, the lifting assembly 8 is a lead screw and nut mechanism for connecting the top plate 102 and the lifting plate 104, and specifically includes a lead screw 801, a nut 803 and a rotating handle 802, one end of the lead screw 801 is connected to the lifting plate 104, the other end passes through the top plate 102 and is connected to the rotating handle 802, the nut 803 is fixedly connected to the top plate 102, and the nut 803 is in threaded fit with the lead screw 801.

Example two

On the basis of embodiment one, still be equipped with on the terminal surface relative with the bumping post 11 on the slider 15 and be suitable for crashproof ball male spacing groove 1001, when slider 15 striking bumping post 11, crashproof ball's position region inserts spacing groove 1001 in, can fix a position crashproof ball, avoids crashproof ball to roll sideslip on slider 15 surface.

In this embodiment, one limiting groove 1001 is provided, and when the crash post 11 collides with the slider 15, the plurality of crash balls can move toward one end of the ball track 1101, so that the crash balls opposite to the limiting groove 1001 are inserted into the limiting groove 1001. As shown in fig. 13, two anti-collision balls at two ends are named as an anti-collision ball a12 and an anti-collision ball b13, and it is assumed that the limiting groove 1001 corresponds to the anti-collision ball a12, when the crash column 11 collides with the slider 15, the anti-collision ball b13 first contacts with the slider 15, the anti-collision ball b13 is squeezed into the ball track 1101, so as to sequentially push other anti-collision balls to move towards the anti-collision ball a12 direction, and finally, the anti-collision ball a12 is pushed against the opening of the ball track 1101, at this time, the distance that the anti-collision ball a12 protrudes out of the surface of the crash column 11 is greater than the distance that the anti-collision ball b13 protrudes out of the surface of the crash column 11, the higher protruding part of the anti-collision ball a12 can be inserted into the limiting groove 1001, so as to position the anti-collision ball a 12.

In other embodiments, two limiting grooves 1001 may be provided, and when the crash column 11 collides with the slider 15, the bump balls a12 and b13 are simultaneously inserted into the corresponding limiting grooves 1001.

EXAMPLE III

In the first or second embodiment, since the crash posts 11 are fixed to both ends of the slide rail 10, the slider 15 cannot be mounted or dismounted from both ends of the slide rail 10 at any time, and therefore, the first or second embodiment is improved based on the first or second embodiment in that the slider 15 is provided with the deformation groove 1002 penetrating along the moving direction of the slider 15 on one side or both sides of the slide rail 10, and the deformation groove 1002 extends to the bottom of the slider 15. As shown in fig. 11, the bottom of the slider 15 has a sliding slot adapted to be sleeved on the sliding rail 10, and the bottom opening gap of the sliding slot is slightly smaller than the diameter of the sliding rail 10, when the slider 15 is sleeved on the sliding rail 10, the slider 15 cannot be separated from the sliding rail 10, the deformation slot 1002 is arranged on the slider 15 located on one side of the sliding slot, when the slider 15 is installed, the slider 15 is pressed onto the sliding rail 10 through the opening at the bottom of the sliding slot, when the opening of the sliding slot passes through the sliding rail 10 from the top of the sliding rail 10, the slider 15 can generate a small deformation towards the deformation slot 1002 under an instant pressure, so that the opening of the sliding slot is expanded, the slider 15 is more easily installed on the sliding rail 10, after the installation, the slider 15 can be reset by the toughness of itself, and is clamped on the sliding rail 10.

Example four

In the above embodiment, the heat sealing plate 3 and the sealing knife 4 are fixedly connected, the lower surfaces of the heat sealing plate 3 and the sealing knife 4 need to be made to be completely equal in height at this time to ensure the completion of the heat sealing and cutting operations, and the requirement on the position accuracy of the heat sealing plate 3 and the sealing knife 4 is high. The top of the sealing knife 4 is provided with a pulling plate 401, the bottoms of the two heat sealing plates 3 are provided with bending parts 301 bending towards the sealing knife 4, and the distance between the two bending parts 301 is smaller than the width of the pulling plate 401. As shown in fig. 5, when the heat seal board 3 is pulled up by the hydraulic cylinder 2, the bending portion 301 holds the pull board 401 for pulling up the seal knife 4, and the seal knife 4 is in a suspended state under the action of gravity; when the hydraulic oil cylinder 2 is pressed downwards, the distance between the two heat sealing plates 3 can be controlled, so that the sealing knife 4 can be clamped by the heat sealing plates 3 to move downwards together, the sealing knife 4 can contact the surface of the workbench firstly, and because the sealing knife 4 and the heat sealing plates 3 are not fixed mutually, when the downward pressure is continuously applied, the sealing knife 4 stops moving, the heat sealing plates 3 continuously move downwards to contact the workbench, the heat sealing and cutting operations are completed, the time difference between the contact of the sealing knife 4 and the workbench, and the heat sealing and cutting operations are still performed at the same time.

EXAMPLE five

In the fourth embodiment, the upper surface of the table is a flat horizontal surface, and when the sealing knife 4 cuts the film, if the sealing knife 4 cannot completely adhere to the surface of the table, the incomplete cutting phenomenon may occur, and therefore, the present embodiment is improved as follows: the workbench comprises a heat sealing platform 5 positioned right below the heat sealing plate 3 and a movable platform 601 positioned right below the sealing knife 4; the end of the sealing knife 4 has a sharp-pointed part 402, the top of the movable platform 601 has a groove 6011 for the sharp-pointed part 402 to extend into, and when the heat sealing plate 3 contacts the heat sealing platform 5, the sharp-pointed part 402 abuts against the inner wall surface of the groove 6011. The height of the spine 402 is low, the film can be cut after being pressed down for a small distance, and compared with the mode of directly cutting on a plane, the cutting mode can ensure that the film is completely cut without incomplete cutting.

EXAMPLE six

In the fifth embodiment, the sealing knife 4 falls earlier than the heat sealing plate 3, so the cutting operation is a little earlier than the heat sealing operation, and the film is loosened after cutting, which causes the heat sealing position to be inaccurate, and therefore, the present embodiment is improved as follows: the end of the sealing knife 4 further has arc-shaped contact portions 403 located at two sides of the spike portion 402, and the bottom end of the arc-shaped contact portion 403 is higher than the bottom end of the spike portion 402, when the spike portion 402 is pressed into the groove 6011, the movable platform 601 can incline towards the input end of the film, so that the arc-shaped contact portion 403 located at one side of the output end of the film is abutted against the movable platform 601.

The spikes 402 are used to cut the film and the curved contact portions 403 do not have a cutting function and are used to press the film to keep it taut. The different heights of the sharp-pointed part 402 and the arc-shaped contact part 403 can enable the sealing knife 4 to have two contact points with the movable platform 601 simultaneously, and the film is pressed when the film is cut.

In the free state, the upper surface of the movable platform 601 is a horizontal surface (as shown in fig. 6), the movable connection means that the movable platform 601 can move in any manner relative to the heat sealing platform 5 as long as the movable platform 601 can be inclined, for example, the movable platform 601 and the movable platform can be connected in a rotating manner, the inner bottom surface of the groove 6011 and the upper surface of the movable platform 601 are contact portions with the spine portion 402 and the arc-shaped contact portion 403, the two contact portions are not at the same height due to the arrangement of the sunken groove 6011, so that two points are simultaneously contacted, as shown in fig. 7, the film is output from right to left, the input end of the film is located on the left side, the upper surface of the movable platform 601 faces upward left, and the arc-shaped contact portion 403 abutting against the movable platform 601 is located on the left side of the sealing knife 4. When the spine 402 contacts the inner surface of the recess 6011, the left arc-shaped contact portion 403 is just abutted against the boundary between the movable platform 601 and the recess 6011, the right arc-shaped contact portion 403 is not in contact with the movable platform 601, the left film is stretched for heat sealing, and the right film springs back away from the surface of the heat sealing platform 5 at the moment of being cut.

When the left film is pressed downwards and tightened, the heat-sealing cutting mechanism can be moved leftwards to reduce the tightening force of the left film, so that the left film is prevented from being tightened.

The cross-sectional shape of the groove 6011 may be circular arc, square, or other irregular shapes, and in this embodiment, the cross-sectional shape of the groove 6011 is a V-shape, and the cross-sectional shape of the spike 402 is also a V-shape.

The movable platform 601 and the heat-sealing platform 5 in this embodiment are connected by the following structure: the bottom of the movable platform 601 is provided with a base 602 and an elastic supporting member 603, the base 602 is arranged on the heat-sealing platform 5, and the elastic supporting member 603 is connected between the base 602 and the movable platform 601; the upper surface of the base 602 is an inclined surface, and when the spike 402 is pressed into the groove 6011, the movable platform 601 is attached to the inclined surface. When the sealing knife 4 is pressed towards the movable platform 601, the elastic supporting member 603 contracts until the movable platform 601 is fit with the upper surface of the base 602, when the elastic supporting member 603 is fixed above the inclined surface of the base 602, the movable platform 601 and the upper surface of the base 602 are not completely fit together, because the movable platform 601 is still supported by the base 602, the inclined angle of the upper surfaces of the movable platform 601 and the base 602 is approximately the same, the cutting operation of the present invention can still be realized, in order to make the movable platform 601 fit with the upper surface of the base 602, the elastic supporting member 603 can be recessed inside the base 602 (as shown in fig. 7), or the elastic supporting member 603 can be arranged at both sides of the base 602 (as shown in fig. 10), when the sealing knife 4 is pulled upwards, the movable platform 601 is reset under the action of the elastic supporting member 603, and the upper surface of the movable platform 601 returns to the horizontal state (as shown in fig. 6), when the film is conveyed to the movable platform 601, the film is tiled on the movable platform 601, the movable platform 601 in the horizontal state can enable the sealing knife 4 to be pressed down and then contacted with the film, the film can be supported by the movable platform 601, and in the process that the movable platform 601 descends, the film is always limited by the sealing knife 4 and the movable platform 601 instead of being in a suspended state, so that the film is prevented from shaking, and the cutting position is more accurate.

Movable platform 601, base 602 and elastic support member 603 constitute cutting platform subassembly 6, and cutting platform subassembly 6 can the direct mount on horizontally heat-seal platform 5, and movable platform 601's the height that highly is higher than heat-seal platform 5 this moment, film can't laminate completely with heat-seal platform 5 surface, influence heat-seal effect, and consequently movable platform 601 highly preferred is not higher than heat-seal platform 5's height. To this end, in this embodiment, the top of the heat-sealing platform 5 has a recessed cavity 501 suitable for housing the cutting platform assembly 6, the upper surface of the movable platform 601 being flush with the upper surface of the heat-sealing platform 5 when the cutting platform assembly 6 is in the free state. When cutting and heat-sealing operation are not carried out, the movable platform 601 and the heat-sealing platform 5 form a platform with the same height, the film can be smoothly transmitted on the surface of the movable platform 601, when heat-sealing operation is carried out, the height of the movable platform 601 is lower than that of the heat-sealing platform 5, the film can be completely attached to the surface of the heat-sealing platform 5 under the action of tensioning force, and effective heat sealing is facilitated.

As shown in fig. 6, the platforms on the heat sealing platform 5 located at two sides of the concave cavity 501 are opposite to the heat sealing plate 3 for heat sealing the film, and in the lifting process of the movable platform 601, the heat sealing platform 5 is always fixed, so that the platforms corresponding to the heat sealing plate 3 are always in a horizontal state, and the heat sealing operation is not affected.

The working method of the heat sealing machine comprises the heat sealing machine with the balance adjusting function, and mainly comprises the following steps: firstly, a film is placed on a heat sealing platform 5 and a movable platform 601, at the moment, a sealing knife 4 is suspended above the movable platform 601, and the upper surface of the movable platform 601 is in a horizontal state; then the hydraulic oil cylinder 2 is started to drive the heat sealing plate 3 and the sealing knife 4 to descend simultaneously, the sealing knife 4 is firstly contacted with the movable platform 601 and pressed into the groove 6011, the upper surface of the movable platform 601 inclines under the pressure of the sealing knife 4, the spine part 402 abuts against the inner wall of the groove 6011 at the moment to cut the film, and meanwhile, the arc-shaped contact part 403 on one side of the film output end abuts against the movable platform 601 to press the film cut at the left side; the hydraulic oil cylinder 2 continuously extends downwards, the sealing knife 4 abuts against the movable platform 601 at the moment and cannot continuously move downwards, and the heat sealing plate 3 and the sealing knife 4 slide relatively until the heat sealing plate 3 is pressed on the upper surface of the heat sealing platform 5 to carry out heat sealing on the left film. The heat seal panel 3 to the right of the sealing knife 4 is pressed directly against the heat seal station 5. The two heat seal plates 3 are used in order to clamp the sealing blades 4 and perform the cutting and heat sealing operations by the same hydraulic cylinder 2.

The invention is mainly used for the film heat sealing operation which only needs one end to seal because only one side heat sealing plate 3 is used for heat sealing the film.

EXAMPLE seven

In the sixth embodiment, after the film is cut, the side of the film which is not subjected to the heat-sealing operation is rebounded away from the surface of the heat-sealing platform 5 mainly by the self-tension of the film, which requires reasonable adjustment of the tension of the film during the conveying process, and the film can not be damaged, and the film has enough rebound force, which is difficult to control in practice, and for this reason, the following improvements are made in this embodiment:

the bottom of base 602 still is equipped with gasbag 604, has the air current passageway 502 that communicates sunken chamber 501 and heat-seal platform 5 upper surface in the lateral wall that lies in the film input on the heat-seal platform 5, and the venthole of gasbag 604 sets up towards air current passageway 502 one side, and gasbag 604 is inside to be provided with along the shell fragment 606 of vertical direction support gasbag 604. As shown in fig. 6 and 7, the air flow channel 502 is located on the heat-sealing platform 5 on the right side, the air inlet hole of the air bag 604 is communicated with an external air source, when the sealing knife 4 ascends, the air bag 604 is jacked up under the action of the elastic sheet 606, meanwhile, the external air source inflates the air bag 604, as the air bag 604 is jacked up by the elastic sheet 606, even if a little air leaks from the air outlet hole, part of air still remains in the air bag 604, when the sealing knife 4 is pressed down, the air bag 604 is instantly squashed, the air in the air bag 604 is squeezed out and blows air to the film on the right side through the air flow channel 502, and the film is separated from the surface of the heat-sealing platform 5 on the right side.

In order to prevent the base 602 from being lifted up by the airbag 604 or from being shaken when the airbag 604 descends, it is preferable that a plurality of arms 605 are fixed to the bottom of the base 602, and the inner bottom surface of the recessed cavity 501 has insertion holes 503 adapted to the insertion of the arms 605. Four supporting feet 605 and four insertion holes 503 are respectively arranged, the base 602 is lifted and lowered along the vertical direction by the cooperation of the supporting feet 605 and the insertion holes 503, and the air bag 604 is positioned between the four supporting feet 605.

Example eight

In the above embodiment, the levelness of the heat seal plate 3 in the length direction is controlled only by two hydraulic oil cylinders 2, and since the feeding accuracy of the hydraulic oil cylinders 2 is not very high, when the heat seal plate 3 is long, the levelness of the heat seal plate 3 in the length direction is difficult to ensure only by the action of the hydraulic oil cylinders 2, and if the heat seal plate 3 inclines, incomplete sealing is caused. Therefore, in this embodiment, the two ends of the middle plate 105 on the machine frame 1 are further fixed with the limiting posts 9, and when the two limiting posts 9 simultaneously abut against the bottom plate 101 (the limiting posts 9 may directly abut against the bottom plate 101, or a raised structure may be provided on the bottom plate 101, and the limiting posts 9 abut against the raised structure), the heat-sealing plate 3 is attached to the surface of the workbench.

The two limit columns 9 have the same structure, and the distance between the two limit columns 9 and the middle plate 105 is the same, under normal conditions, the top plate 102, the middle plate 105, the heat seal plate 3 and the bottom plate 101 are all horizontally arranged, because the expansion speed of the two hydraulic cylinders 2 may have a slight difference, when the two hydraulic cylinders 2 extend out, the limit column 9 at one side of the hydraulic cylinder 2 with the higher extension speed first contacts with the bottom plate 101, as shown in fig. 9, if the hydraulic cylinder 2 at the right side extends out faster, the limit column 9 at the right side first contacts with the bottom plate 101, and at the same time, the right sides of the two heat seal plates 3 also contact with the workbench, because of the limitation of the limit column 9 at the right side, even if the hydraulic cylinder 2 at the right side is continuously started, the right side of the heat seal plate 3 cannot continuously apply pressure to the workbench, so as to protect the film, and the hydraulic cylinder 2 at the left side continuously drives the left side of the heat seal plate 3 to move downwards, until the left limit column 9 contacts the bottom plate 101, and the heat-sealing plate 3 is completely attached to the workbench.

Example nine

In the eighth embodiment, the heat-sealing plate 3 is fixedly connected to the intermediate plate 105, the heat-sealing plate 3 has poor flexibility, and it is necessary to ensure that the heat-sealing plate 3 contacts the work table while the position-limiting columns 9 contact the bottom plate 101. This places a very high demand on the positional accuracy of the components, and for this reason, the present embodiment is improved as follows: the intermediate plate 105 is connected to the heat seal plate 3 by an adjusting spring 7. As shown in fig. 2, two adjusting springs 7 are provided, because of the existence of the adjusting springs 7, the heat-sealing plate 3 can contact the workbench before the limit column 9 contacts the bottom plate 101, when the hydraulic oil cylinder 2 continues to press down, the adjusting springs 7 can contract, the heat-sealing plate 3 cannot generate a large extrusion force on the film, the requirement on the installation accuracy of the limit column 9 and the heat-sealing plate 3 is greatly reduced in the embodiment, in addition, because of the existence of the adjusting springs 7, when the heat-sealing plate 3 moves downward and contacts the heat-sealing platform 5, even if the heat-sealing plate 3 has a certain inclination, the angle can still be adjusted under the limitation of the heat-sealing platform 5 until the heat-sealing plate 3 is completely attached to the heat-sealing platform 5.

Example ten

In this embodiment, the limiting column 9 in the above embodiment is adjusted from a fixed-length structure to a length-adjustable structure, specifically, the limiting column 9 includes a fixed column 901 and a pressing head 902, the fixed column 901 is fixedly connected to the intermediate plate 105, the pressing head 902 abuts against the bottom plate 101, and the upper portion of the pressing head 902 is in threaded connection with the fixed column 901. As shown in fig. 9, the upper portion of the pressing head 902 is sleeved on the periphery of the fixed column 901 and is in threaded connection with the fixed column 901, threads are arranged on the inner surface and the outer surface of the upper portion of the pressing head 902, the threads on the outer surface are matched with the locking nut 903, when the length of the limiting column 9 needs to be adjusted, the locking nut 903 is unscrewed first, and then the pressing head 902 is rotated to enable the pressing head 902 to make a spiral motion relative to the fixed column 901, so that the total length of the limiting column 9 is changed. Preferably, the end of the ram 902 is provided with a rubber pad.

In the description of the present invention, it is to be understood that the terms "length", "upper", "lower", "left", "right", "vertical", "horizontal", etc. indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience in describing the present invention and simplifying the description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention.

In this specification, the schematic representations of the terms are not necessarily referring to the same embodiment. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments.

In light of the foregoing description of the preferred embodiment of the present invention, many modifications and variations will be apparent to those skilled in the art without departing from the spirit and scope of the invention. The technical scope of the present invention is not limited to the content of the specification, and must be determined according to the scope of the claims.

Claims

1. The utility model provides an anticollision heat sealing machine which characterized in that: comprises a bottom plate and a heat-sealing cutting mechanism positioned on the bottom plate; a sliding rail is fixed at the top of the bottom plate, a sliding block in sliding fit with the sliding rail is fixed at the bottom of the heat-sealing cutting mechanism, and anti-collision columns are arranged at two ends of the sliding rail;

2. The crashworthy heat sealer according to claim 1, wherein: and a limiting groove suitable for the insertion of an anti-collision ball is further formed in the end face, opposite to the anti-collision column, of the sliding block.

3. The crashworthy heat sealer according to claim 1, wherein: the caliber of the openings at the two ends of the ball track is smaller than the diameter of the anti-collision ball, so that the anti-collision ball is limited in the ball track.

4. The crashworthy heat sealer according to claim 1, wherein: the ball tracks extend in the shape of circular arcs.

5. The crashworthy heat sealer according to claim 1, wherein: and one side or two sides of the sliding block, which are positioned on the sliding rail, are provided with deformation grooves which are communicated along the moving direction of the sliding block, and the deformation grooves extend to the bottom of the sliding block.

6. The crashworthy heat sealer according to claim 1, wherein: the heat-seal cutting mechanism comprises heat-seal plates, a seal knife positioned between the two heat-seal plates, a rack fixed with the base plate and a workbench, wherein the rack is connected with a hydraulic oil cylinder, and the hydraulic oil cylinder drives the heat-seal plates and the seal knife to be close to or far away from the workbench.

7. The crashworthy heat sealer according to claim 6, wherein: the sealing knife is clamped between the two heat sealing plates, so that the heat sealing plates can drive the sealing knife to lift, and the sealing knife can do lifting motion relative to the heat sealing plates.

8. The crashworthy heat sealer according to claim 7, wherein: the workbench comprises a heat sealing platform positioned right below the heat sealing plate and a movable platform positioned right below the sealing knife;

the tail end of the sealing knife is provided with a sharp-pointed part, the top of the movable platform is provided with a groove suitable for the sharp-pointed part to extend into, and when the heat sealing plate is contacted with the heat sealing platform, the sharp-pointed part is abutted against the inner wall surface of the groove.

9. The crashworthy heat sealer according to claim 2, wherein: the limiting groove is provided with one limiting groove, and when the anti-collision column collides with the sliding block, the anti-collision balls can move towards one end of the ball track, so that the anti-collision balls opposite to the limiting groove are inserted into the limiting groove.