CN219838733U - Rolling film heat sealing device - Google Patents

Abstract

The utility model relates to a rolled film heat sealing device, which comprises a feeding component, a rolled film conveying component and a heat sealing and cutting component; the feeding component comprises a bottom plate and an objective table, the bottom plate is provided with a feeding position and a working position, and the objective table is arranged at the upper end of the bottom plate in a sliding manner; the heat sealing and cutting assembly comprises a portal frame, a vertical driving mechanism and a heat sealing module, wherein the portal frame is correspondingly arranged at a working position, and the vertical driving mechanism is arranged on the portal frame; the film rolling conveying assembly comprises a film rolling mounting frame and a traction mechanism, the film rolling mounting frame comprises a supporting arm and a mounting rod, the supporting arm is connected to the portal frame and extends upwards, the mounting rod is transversely mounted at the upper end of the supporting arm, the traction mechanism comprises a film feeding base plate, a traction roller and a driving piece, the film feeding base plate is transversely arranged at one side of a working position, and the traction roller is arranged at one side of the film feeding base plate close to the working position; the hot air cutting device has larger and more stable downward pressure, ensures the heat sealing quality, completely separates the film rolling mounting frame from the hot air cutting assembly, and does not have the problem of unchanged film rolling mounting.

Description

Rolling film heat sealing device

Technical Field

The utility model relates to the technical field of clinical examination equipment, in particular to a film rolling heat sealing device.

Background

PCR (polymerase chain reaction) detection is that a small amount of (trace) DNA is used as a mould, and the trace DNA is amplified to a quantity sufficient for functional analysis under the joint participation of DNA polymerase and nucleotide substrates, so that the PCR detection method has extremely important significance in the aspects of rapidly diagnosing bacterial infectious diseases clinically and the like. The PCR detection method comprises the following steps: under the action of DNA polymerase, the oligonucleotide fragment is used as primer to extend along the mould chain according to the semi-reserved replication mechanism until the new DNA synthesis is completed, and the process is repeated, so that the target DNA fragment can be amplified and can be simply regarded as DNA replication.

After the sample is collected, the PCR porous plate needs to be subjected to film sealing treatment, and the film sealing device on the market at present adopts the swing of the winding drum and the translation of the PCR porous plate to realize the relative movement of the winding drum and the PCR porous plate, so that continuous film sealing is realized.

Disclosure of Invention

Based on the above description, the present utility model provides a film rolling heat sealing device to solve the above technical problems.

The technical scheme for solving the technical problems is as follows:

a film rolling heat sealing device comprises a feeding component, a film rolling conveying component and a heat sealing and cutting component;

the feeding assembly comprises a bottom plate and an objective table, wherein the bottom plate is provided with a feeding position and a working position, the objective table is arranged at the upper end of the bottom plate in a sliding manner, and the feeding position and the working position are both positioned on the sliding travel of the objective table;

the heat-sealing cutting assembly comprises a portal frame, a vertical driving mechanism and a heat-sealing module, wherein the portal frame is correspondingly arranged at the working position, the vertical driving mechanism is arranged on the portal frame and used for driving the heat-sealing module to lift, and the heat-sealing module is used for heat-sealing the heat-sealing film;

the film rolling conveying assembly comprises a film rolling installation frame and a traction mechanism, the film rolling installation frame comprises a supporting arm and a mounting rod, the supporting arm is connected to the portal frame and extends upwards, the mounting rod is transversely mounted at the upper end of the supporting arm, the traction mechanism comprises a film feeding base plate, a traction roller and a driving piece, the film feeding base plate is transversely arranged on one side of the working position, the traction roller is arranged on one side, close to the working position, of the film feeding base plate, and the driving piece is used for driving the traction roller to rotate.

Compared with the prior art, the technical scheme of the utility model has the following beneficial technical effects:

according to the film rolling heat sealing device provided by the utility model, the PCR porous plate to be sealed is conveyed to the working position from the material loading position through the sliding of the objective table, the film rolling arranged on the film rolling mounting frame is conveyed to the working position after being unfolded through the traction mechanism, then the vertical driving mechanism drives the heat sealing module to descend, the heat sealing of the PCR porous plate is realized, the pressing of the heat sealing module is realized in a vertical driving mode, the pressure is larger and more stable, the heat sealing quality is ensured, the film rolling mounting frame and the hot air cutting assembly are completely separated, and the problem of unchanged film rolling installation is avoided.

On the basis of the technical scheme, the utility model can be improved as follows.

Further, be provided with the slide rail on the bottom plate, the objective table cooperation connect in the slide rail, feed assembly still includes synchronous actuating mechanism, synchronous actuating mechanism includes first motor, two synchronous pulleys, hold-in range and follower, the spout has been seted up along objective table direction of motion on the bottom plate, first motor install in the bottom plate two synchronous pulleys set up in the both ends of spout and one of them is connected in the pivot of first motor, the hold-in range connects two synchronous pulleys, the follower is connected the hold-in range with the objective table.

Further, the portal frame comprises two supporting legs and a transverse plate positioned at the upper ends of the supporting legs, the vertical driving mechanism is arranged on the transverse plate, the heat sealing module comprises a fixing plate, an elastic piece and a heating block, the fixing plate is connected to the driving end of the vertical driving mechanism, the heating block is arranged below the fixing plate, and the elastic piece is arranged between the fixing plate and the heating block.

Further, the heat-seal module still includes press mold piece and cut-off knife, roll up membrane conveying assembly still includes the press mold backing plate, the press mold backing plate set up in the pull roll is kept away from one side of advancing the membrane backing plate, press mold piece with the cut-off knife all set up in the lower extreme of fixed plate, press mold piece is used for compressing tightly and is located press mold backing plate top heat-seal film, the cut-off knife is used for cutting the heat-seal film that is compressed tightly.

Further, the film pressing piece comprises a guide shaft, a sleeve spring, a blanking pressing plate, a heat insulation pressing plate and a film pressing pad, wherein the guide shaft is connected to the fixing plate in a lifting mode, the sleeve spring is sleeved on the guide shaft and connected between the lower end of the guide shaft and the fixing plate, and the blanking pressing plate, the heat insulation pressing plate and the film pressing pad are sequentially connected to the lower end of the guide shaft.

Further, the heating block comprises an upper pressing plate, an electric heating film and a lower pressing plate, the upper pressing plate is connected with the lower end of the elastic piece, the lower pressing plate is correspondingly connected with the lower end of the upper pressing plate, the electric heating film is clamped between the upper pressing plate and the lower pressing plate, the elastic piece comprises a plurality of guide posts and compression springs correspondingly sleeved on the guide posts, the lower ends of the guide posts are connected with the upper ends of the heating block, the upper ends of the guide posts movably penetrate through the fixing plate, and two ends of the compression springs are fixedly connected with the fixing plate and the heating block respectively.

Further, the vertical driving mechanism comprises a motor mounting bracket, a screw rod motor, a nut seat, a linear guide rail and a mounting seat, wherein the motor mounting bracket is arranged at the upper end of the transverse plate, the screw rod motor is arranged on the motor mounting bracket, the screw rod is vertically downwards arranged, the linear guide rail is vertically arranged on the motor mounting bracket, the nut seat is connected to the screw rod and slides in cooperation with the linear guide rail, the mounting seat is connected to the nut seat, and the lower end of the mounting seat is connected with the heating block through a heat insulation block.

Further, the film rolling mounting frame further comprises two clamping pieces, each clamping piece comprises a clamping nut, a clamping spring and a clamping plate, the clamping plates are sleeved on the mounting rod, the clamping nuts are in threaded connection with the end parts of the mounting rod, and the clamping springs are sleeved on the mounting rod and located between the clamping plates and the clamping nuts.

Further, the traction roller set comprises a traction roller and a follow-up roller, the traction roller is rotatably arranged on the upper side of the film feeding backing plate, the follow-up roller is arranged on the lower side of the traction roller in parallel, the follow-up roller and the side surface of the traction roller are arranged in an extrusion mode, and a layer of polyurethane antistatic adhesive is coated on the surface of the follow-up roller.

Further, the traction mechanism further comprises three deviation rectifying rollers, a mounting plate is arranged on one side of the film feeding backing plate, the three deviation rectifying rollers are mounted on the mounting plate, two deviation rectifying rollers are arranged at the same height and close to the upper end of the film feeding backing plate, the other deviation rectifying roller is arranged on the upper portion of the mounting plate, a triangle is formed between the mounting positions of the three deviation rectifying rollers, and the triangle is far away from the angle of the traction roller to be an acute angle.

Drawings

Fig. 1 is a schematic structural view of a film rolling heat sealing device according to an embodiment of the present utility model;

FIG. 2 is a schematic view of a feed assembly from one perspective in accordance with an embodiment of the present utility model;

FIG. 3 is a schematic view of a feed assembly from another perspective in accordance with an embodiment of the present utility model;

FIG. 4 is a schematic diagram of a heat seal cutting assembly according to an embodiment of the present utility model;

FIG. 5 is a schematic view of a vertical driving mechanism according to an embodiment of the present utility model;

FIG. 6 is a schematic diagram of a heat sealing module according to an embodiment of the present utility model;

FIG. 7 is a schematic view of a traction mechanism according to an embodiment of the present utility model;

FIG. 8 is a schematic view of another view of the traction mechanism according to an embodiment of the present utility model;

FIG. 9 is a schematic diagram of a heat sealing module according to an embodiment of the present utility model;

fig. 10 is a schematic structural view of a roll film mounting frame according to an embodiment of the present utility model.

Detailed Description

In order that the utility model may be readily understood, a more complete description of the utility model will be rendered by reference to the appended drawings. Embodiments of the utility model are illustrated in the accompanying drawings. This utility model may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this utility model belongs. The terminology used herein in the description of the utility model is for the purpose of describing particular embodiments only and is not intended to be limiting of the utility model.

It will be appreciated that spatially relative terms such as "under … …," "under … …," "below," "under … …," "over … …," "above," and the like may be used herein to describe one element or feature's relationship to another element or feature as illustrated in the figures. It will be understood that the spatially relative terms are intended to encompass different orientations of the device in use and operation in addition to the orientation depicted in the figures. For example, if the device in the figures is turned over, elements or features described as "under" or "beneath" other elements would then be oriented "on" the other elements or features. Thus, the exemplary terms "under … …" and "under … …" may include both an upper and a lower orientation. Furthermore, the device may also include an additional orientation (e.g., rotated 90 degrees or other orientations) and the spatial descriptors used herein interpreted accordingly.

It will be understood that when an element is referred to as being "connected" to another element, it can be directly connected to the other element or be connected to the other element through intervening elements. In the following embodiments, "connected" is understood to mean "electrically connected", "communicatively connected", and the like, if the connected circuits, modules, units, and the like have electrical or data transferred therebetween.

As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It will be further understood that the terms "comprises" and/or "comprising," and/or the like, specify the presence of stated features, integers, steps, operations, elements, components, or groups thereof, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, or groups thereof.

As shown in fig. 1 to 10, an embodiment of the present utility model provides a roll film heat-sealing apparatus including a feeding assembly 100, a heat-seal cutting assembly 200, and a roll film feeding assembly 300.

The feeding assembly 100 includes a base plate 110 and a stage 120, the base plate 110 has a loading position 11a and a working position 11b, the stage 120 is slidably disposed at an upper end of the base plate 110, and the loading position 11a and the working position 11b are both located on a sliding stroke of the stage 120.

Specifically, the bottom plate 110 is provided with a sliding rail 111, the objective table 120 is connected to the sliding rail 111 in a matching manner, the feeding assembly 100 further comprises a synchronous driving mechanism 130, the synchronous driving mechanism 130 comprises a first motor 131, two synchronous pulleys 132, a synchronous belt 133 and a follow-up block 134, the bottom plate 110 is provided with a sliding chute 112 along the movement direction of the objective table 120, the first motor 131 is arranged on the bottom plate 110, the two synchronous pulleys 132 are arranged at two ends of the sliding chute 112 and one of the two synchronous pulleys 132 is connected to the rotating shaft of the first motor 131, the synchronous belt 133 is connected with the two synchronous pulleys 132, and the follow-up block 134 is arranged in the sliding chute 112 and connected with the synchronous belt 133 and the objective table 120.

When the first motor rotates, the synchronous belt 133 is driven to move in front of the two synchronous pulleys 132, the follower block 134 moves in the sliding groove 112, and the objective table 120 is driven to move along the sliding rail 111, so that the loading and unloading of the PCR porous plate are realized.

The heat seal cutting assembly 200 includes a gantry 210, a vertical drive mechanism 220, and a heat seal module 230.

The gantry 210 is correspondingly disposed at the working position 11b, the gantry 210 includes two legs 211 and a transverse plate 212 disposed at the upper ends of the legs 211, and the vertical driving mechanism 220 is disposed at the transverse plate 212.

The vertical driving mechanism 220 is disposed on the gantry 210, and is used for driving the heat sealing module 230 to lift, and the heat sealing module 230 is used for heat sealing the heat sealing film. In a preferred embodiment of the present utility model, the vertical driving mechanism 220 includes a motor mounting bracket 221, a screw motor 222, a nut seat 223, a linear guide 224, and a mounting seat 225; the heat-seal module 230 includes a fixing plate 231, an elastic member 232, and a heating block 233.

The fixing plate 231 is connected to the driving end of the vertical driving mechanism 220, the heating block 233 is disposed below the fixing plate 231, and the elastic member 232 is disposed between the fixing plate 231 and the heating block 233.

Wherein, the heating block 233 includes top board 2331, electrical heating membrane 2332 and holding down plate 2333, top board 2331 connects the lower extreme of elastic component 232, holding down plate 2333 corresponds to be connected the lower extreme of top board 2331, electrical heating membrane 2332 presss from both sides to be located top board 2331 with between holding down plate 2333, wherein, holding down plate 2333 lower surface scribbles the teflon coating, and heat conductivility is good, and is not viscose, reduces the adhesion of holding down plate 2333 and heat-seal membrane by a wide margin in the heat-seal process.

In order to ensure the safety during operation, the heating block 233 further comprises a temperature fuse 2334, the temperature fuse 2334 is disposed between the upper pressing plate 2331 and the lower pressing plate 2333, and the electric heating film 2332 is electrically connected with the temperature fuse 2334.

In order to accurately control the temperature of the heating block 233, the heating block 233 further comprises a temperature sensor 2335, the thickness of the upper pressing plate 2331 and the thickness of the lower pressing plate 2333 are the same and are made of the same material, the temperature sensor 2335 is connected to the upper end of the upper pressing plate 2331, and the surfaces of the electric heating film 2332, the temperature fuse 2334 and the temperature sensor 2335 are coated with heat-conducting silicone grease, so that uniform heat transfer, safe heating and accurate temperature measurement are ensured.

Specifically, the motor mounting bracket 221 is disposed at the upper end of the transverse plate 212, preferably, the motor mounting bracket 221 includes a side plate located on three sides and a top plate located at the upper end of the side plate, the screw motor 222 is disposed on the top plate and the screw is disposed vertically downward, the linear guide 224 is vertically mounted on the side plate (i.e. the guide plate 2211) located in the middle, the nut seat 223 is connected to the screw and slides in cooperation with the linear guide 224, the mounting seat 225 is connected to the nut seat 223, and the lower end of the mounting seat 225 is connected to the fixing plate 231 through a heat insulation block 226.

The heat insulation block 226 is made of polytetrafluoroethylene, the heat conductivity coefficient of the polytetrafluoroethylene is very low, heat of the lower electric heating film 2332 can be well insulated from being transmitted to the upper linear guide rail 224, the screw motor 222 and other metal parts by metal, certain electromagnetic waves can be generated in the operation process of the screw motor 222, the heat insulation block is transmitted to the lower side by the metal screw, and the heat insulation block 226 also plays a certain electromagnetic shielding role in the transmission of temperature measurement data signals of the temperature sensor 2335.

The film rolling conveying assembly 300 comprises a film rolling mounting frame 310 and a traction mechanism 320, the film rolling mounting frame 310 comprises a supporting arm 311 and a mounting rod 312, the supporting arm 311 is connected to the portal frame 210 and extends upwards, the mounting rod 312 is transversely mounted at the upper end of the supporting arm 311, in this embodiment, a mounting notch is formed in the upper end of the end portion of the supporting arm 311, the end portion of the mounting rod 312 is detachably lapped on the mounting notch, and the mounting of the film rolling 400 is facilitated by adopting a notch lapping mode, so that the mounting rod 312 is convenient to detach.

The traction mechanism 320 comprises a film feeding base plate 321, a traction roller set and a driving piece 323, the film feeding base plate 321 is transversely arranged on one side of the working position 11b, the traction roller set is arranged on one side, close to the working position 11b, of the film feeding base plate 321, and the driving piece 323 is used for driving the traction roller set to rotate.

Specifically, the pull roll set includes pull roll 322 and follower roll 324, pull roll 322 rotatable set up in advance the upside of membrane backing plate 321, follower roll 324 parallel arrangement in the downside of pull roll 322, follower roll 324 with the extrusion of pull roll 322 side sets up, follower roll 324 surface covers one deck polyurethane antistatic backing.

The follower roller 324 and the traction roller 322 are in an extrusion installation state, and a layer of polyurethane antistatic adhesive is coated on the surface of the follower roller 324, so that the follower roller 324 has certain elasticity. The surface of the heat-sealing film is rough, the electrostatic adsorption film can be avoided when the heat-sealing film is conveyed, the heat-sealing film has certain elasticity, the surface of the heat-sealing film is ensured not to be crushed, the surface of the heat-sealing film is rough, and enough friction force is provided for traction conveying of the heat-sealing film.

The film rolling mounting rack 310 further comprises two clamping pieces 313, each clamping piece 313 comprises a clamping nut 3131, a clamping spring 3132 and a clamping plate 3133, the clamping plates 3133 are sleeved on the mounting rod 312, the clamping nuts 3131 are in threaded connection with the end portions of the mounting rod 312, and the clamping springs 3132 are sleeved on the mounting rod 312 and are located between the clamping plates 3133 and the clamping nuts 3132.

When the coiled film is installed, the installation rod 312 is firstly taken out from the installation notch, the nut 3131 is clamped at one side and the clamping spring 3132 is sleeved, one clamping plate 3133 is installed, then the coiled film 400 is sleeved, the other clamping plate 3133 is installed at the other side of the coiled film 400 to clamp the coiled film 400, the other clamping spring 3132 is sleeved and the clamping nut 3131 at the other end is installed, and the clamping springs 3132 at the two ends are subjected to position self-adaption through elasticity, so that the coiled film 400 can be placed in the middle.

Preferably, the traction mechanism 320 further includes three deviation correcting rollers 325, one side of the film feeding backing plate 321 is provided with a mounting plate 326, the three deviation correcting rollers 325 are all mounted on the mounting plate, two deviation correcting rollers 325 are disposed at the same height and are distributed close to the upper end of the film feeding backing plate 321, another deviation correcting roller 325 is disposed at the upper portion of the mounting plate 326, a triangle is formed between the mounting positions of the three deviation correcting rollers 325, and the angle of the triangle away from the traction roller 322 is an acute angle; the correction rollers 325 are in an acute angle state in the film feeding process, so that the included angle between the heat-seal films is in an acute angle state, the side supporting capacity of the films is improved, the heat-seal films are wound on the three correction rollers 325 and then fed into the traction roller set, and the heat-seal films 400 can be smoothly conveyed through the combined actions of tensioning, centering, adjusting and the like of the three correction rollers 325.

In the present utility model, the heat sealing module 230 further includes a film pressing member 234 and a cutter 235, the traction mechanism 320 further includes a film pressing pad 327, the film pressing pad 330 is disposed on a side of the traction roller 322 away from the film feeding pad 321, the film pressing member 234 and the cutter 235 are both disposed at the lower end of the fixing plate 231, the film pressing member 234 is used for pressing a heat sealing film located above the film pressing pad 327, and the cutter 235 is used for cutting the pressed heat sealing film.

This device adopts heat-seal and cuts integrative structural style, in the heat-seal, has the function of cutting the membrane, and two kinds of functions are accomplished simultaneously to a device, and the device simple structure, and is small, easy dismounting, and it is succinct to use.

Specifically, the film pressing member 234 includes a guide shaft 2341, a sleeve spring 2342, a blanking pressing plate 2343, a heat insulation pressing plate 2345 and a film pressing pad 2346, the guide shaft 2341 is connected to the fixing plate 231 in a lifting manner, the sleeve spring 2342 is sleeved on the guide shaft 2341 and is connected between the lower end of the guide shaft 2341 and the fixing plate 231, and the blanking pressing plate 2343, the heat insulation pressing plate 2344 and the film pressing pad 2345 are sequentially connected to the lower end of the guide shaft 2341.

Wherein, thermal-insulated clamp plate 2345 plays thermal-insulated effect, prevents that the high temperature of heating piece 233 from being transmitted to this by metal part, adhesion heat-seal membrane when pressing the membrane, and press membrane pad 2346 is the rubber pad preferably, and the rubber pad plays the cushioning effect, prevents to press bad heat-seal membrane, and during operation elasticity pushes down, and fixed plate 231 is pressed down and is removed, and sleeve spring 2342 stores sufficient pressure, guarantees that press membrane piece 234 can effectively push down the heat-seal membrane.

In order to determine the pressing position of the heating block 233 and control the periodical motion of heat sealing through the initial position, the mounting base 225 is provided with a zero position touch plate 2251, the motor mounting bracket 221 is provided with a distance sensor 2212, when the mounting base 225 is at the initial position, the zero position touch plate 2251 is at the zero position of the sensor 2212, and the real-time position feedback of the distance sensor 2212 to the zero position touch plate 2251 is used for determining the pressing position of the heating block 233.

When the film rolling heat sealing device provided by the utility model is used, firstly, the mounting rod 312 is taken out from the mounting notch, one side of the mounting rod is clamped with the nut 3131 and sleeved with the clamping spring 3132, one clamping plate 3133 is mounted, then the film rolling 400 is sleeved, the other side of the film rolling 400 is mounted with the other clamping plate 3133 to clamp the film rolling 400, and then the other clamping spring 3132 is sleeved and the clamping nut 3131 at the other end is mounted.

The head of the heat-sealing film pulled out from the film roll 400 sequentially bypasses the three deviation correcting rollers 325, passes through the traction roller 322 and the follower roller 324 and then is sent to the film pressing pad 330, then the PCR porous plate is placed on the object stage 120 positioned at the feeding position 11a, the first motor is started to rotate so as to drive the synchronous belt 133 to move in front of the two synchronous pulleys 132, and the follower block 134 moves in the sliding groove 112, so that the object stage 120 moves to the working position 11b along the sliding rail 111.

After the heat sealing preparation work is ready, the screw motor 222 is started, the nut seat 222 moves downwards along the screw shaft to drive the fixing plate 231 to press downwards, the heating block 233, the film pressing piece 234 and the cutter 235 are driven to descend simultaneously, the film pressing piece 234 presses the heat sealing film on the film pressing base plate 327 at first, then the heating block 233 heat seals the PCR porous plate, the cutter 235 cuts off the heat sealing film, and the object stage 120 returns to the feeding position 11a under the drive of the synchronous belt 133, so that one heat sealing operation is completed.

The foregoing description of the preferred embodiments of the utility model is not intended to limit the utility model to the precise form disclosed, and any such modifications, equivalents, and alternatives falling within the spirit and scope of the utility model are intended to be included within the scope of the utility model.

Claims (10)

1. The film rolling heat sealing device is characterized by comprising a feeding component, a film rolling conveying component and a heat sealing and cutting component;

the feeding assembly comprises a bottom plate and an objective table, wherein the bottom plate is provided with a feeding position and a working position, the objective table is arranged at the upper end of the bottom plate in a sliding manner, and the feeding position and the working position are both positioned on the sliding travel of the objective table;

the heat-sealing cutting assembly comprises a portal frame, a vertical driving mechanism and a heat-sealing module, wherein the portal frame is correspondingly arranged at the working position, the vertical driving mechanism is arranged on the portal frame and used for driving the heat-sealing module to lift, and the heat-sealing module is used for heat-sealing the heat-sealing film;

the film rolling conveying assembly comprises a film rolling installation frame and a traction mechanism, the film rolling installation frame comprises a supporting arm and a mounting rod, the supporting arm is connected to the portal frame and extends upwards, the mounting rod is transversely mounted at the upper end of the supporting arm, the traction mechanism comprises a film feeding base plate, a traction roller and a driving piece, the film feeding base plate is transversely arranged on one side of the working position, the traction roller is arranged on one side, close to the working position, of the film feeding base plate, and the driving piece is used for driving the traction roller to rotate.

2. The film rolling heat sealing device according to claim 1, wherein a sliding rail is arranged on the bottom plate, the object stage is connected to the sliding rail in a matched manner, the feeding assembly further comprises a synchronous driving mechanism, the synchronous driving mechanism comprises a first motor, two synchronous pulleys, a synchronous belt and a follow-up block, a sliding groove is formed in the bottom plate along the movement direction of the object stage, the first motor is arranged on the bottom plate, the two synchronous pulleys are arranged at two ends of the sliding groove, one of the synchronous pulleys is connected to a rotating shaft of the first motor, the synchronous belt is connected with the two synchronous pulleys, and the follow-up block is connected with the synchronous belt and the object stage.

3. The film rolling heat sealing device according to claim 1, wherein the portal frame comprises two supporting legs and a transverse plate positioned at the upper ends of the supporting legs, the vertical driving mechanism is arranged on the transverse plate, the heat sealing module comprises a fixing plate, an elastic piece and a heating block, the fixing plate is connected to the driving end of the vertical driving mechanism, the heating block is arranged below the fixing plate, and the elastic piece is arranged between the fixing plate and the heating block.

4. A film rolling heat sealing device according to claim 3, wherein the heat sealing module further comprises a film pressing member and a cutter, the film rolling conveying assembly further comprises a film pressing base plate, the film pressing base plate is arranged on one side of the traction roller away from the film feeding base plate, the film pressing member and the cutter are both arranged at the lower end of the fixing plate, the film pressing member is used for pressing a heat sealing film above the film pressing base plate, and the cutter is used for cutting the pressed heat sealing film.

5. The film rolling heat sealing device according to claim 4, wherein the film pressing member comprises a guide shaft, a sleeve spring, a blanking pressing plate, a heat insulation pressing plate and a film pressing pad, the guide shaft is connected to the fixing plate in a lifting mode, the sleeve spring is sleeved on the guide shaft and connected between the lower end of the guide shaft and the fixing plate, and the blanking pressing plate, the heat insulation pressing plate and the film pressing pad are sequentially connected to the lower end of the guide shaft.

6. The film rolling heat sealing device according to claim 4, wherein the heating block comprises an upper pressing plate, an electric heating film and a lower pressing plate, the upper pressing plate is connected to the lower end of the elastic member, the lower pressing plate is correspondingly connected to the lower end of the upper pressing plate, the electric heating film is clamped between the upper pressing plate and the lower pressing plate, the elastic member comprises a plurality of guide posts and compression springs correspondingly sleeved on the guide posts, the lower ends of the guide posts are connected with the upper ends of the heating block, the upper ends of the guide posts movably penetrate through the fixing plate, and two ends of the compression springs are fixedly connected to the fixing plate and the heating block respectively.

7. The film rolling heat sealing device according to claim 6, wherein the vertical driving mechanism comprises a motor mounting bracket, a screw motor, a nut seat, a linear guide rail and a mounting seat, the motor mounting bracket is arranged at the upper end of the transverse plate, the screw motor is arranged on the motor mounting bracket, the screw is arranged vertically downwards, the linear guide rail is vertically arranged on the motor mounting bracket, the nut seat is connected to the screw and slides in cooperation with the linear guide rail, the mounting seat is connected to the nut seat, and the lower end of the mounting seat is connected with the heating block through a heat insulation block.

8. The film roll heat seal apparatus of claim 1 wherein the film roll mounting bracket further comprises two clamping members, each clamping member comprising a clamping nut, a clamping spring and a clamping plate, the clamping plate being sleeved on the mounting bar, the clamping nut being threadably connected to an end of the mounting bar, the clamping spring being sleeved on the mounting bar and located between the clamping plate and the clamping nut.

9. The film rolling heat sealing device according to claim 1, wherein the traction roller group comprises a traction roller and a follower roller, the traction roller is rotatably arranged on the upper side of the film feeding backing plate, the follower roller is arranged on the lower side of the traction roller in parallel, the follower roller and the side surface of the traction roller are arranged in an extrusion mode, and a layer of polyurethane antistatic adhesive is coated on the surface of the follower roller.

10. The film rolling heat sealing device according to claim 9, wherein the traction mechanism further comprises three deviation correcting rollers, one side of the film feeding backing plate is provided with a mounting plate, three deviation correcting rollers are mounted on the mounting plate, two deviation correcting rollers are arranged at the same height and are close to the upper end of the film feeding backing plate to be distributed, the other deviation correcting roller is arranged on the upper portion of the mounting plate, a triangle is formed between the mounting positions of the three deviation correcting rollers, and the angle of the triangle away from the traction roller is an acute angle.