CN210575978U

CN210575978U - Hot-pressing packaging equipment for photovoltaic cell

Info

Publication number: CN210575978U
Application number: CN201921887947.3U
Authority: CN
Inventors: 韩秀松; 王道龙
Original assignee: Suzhou Derui Keyi Instrument Equipment Co ltd
Current assignee: Suzhou Derui Keyi Instrument Equipment Co ltd
Priority date: 2019-11-05
Filing date: 2019-11-05
Publication date: 2020-05-19
Anticipated expiration: 2029-11-05

Abstract

The utility model discloses a hot-pressing packaging device for photovoltaic cells, which comprises a first die body and a second die body which are arranged oppositely, wherein the first die body is in transmission connection with a first driving mechanism and can move between a closed position and an open position; a first fixing mechanism for fixing at least a cover glass; the second fixing mechanism is arranged in the first area of the first die body and at least used for fixing the battery piece, the second fixing mechanism is in transmission connection with the second driving mechanism and can reach or leave the hot pressing position under the driving of the second driving mechanism, and the gas pumping and filling mechanism is at least used for exhausting gas in the sealed cavity to form a vacuum environment or introducing protective gas into the sealed cavity to form a protective gas environment. The utility model provides a pair of a hot pressing packaging equipment for photovoltaic cell, encapsulation temperature is controllable, through adjusting the hot melt adhesive of encapsulation temperature in order to adapt to the difference to reach better encapsulation effect.

Description

Hot-pressing packaging equipment for photovoltaic cell

Technical Field

The utility model relates to a hot pressing packaging equipment, in particular to hot pressing packaging equipment for photovoltaic cell belongs to photovoltaic cell packaging equipment technical field.

Background

Solar energy is a cleanable energy source and is being noticed by more and more people. A solar cell plays an important role in the field of solar energy as a photoelectric conversion device. There are many factors that affect the photoelectric conversion efficiency of the solar cell, such as the photoelectric conversion efficiency of the dielectric layer material of the solar cell, and the stability of the cell itself, and the factors that affect the stability of the cell include the encapsulation effect of the cell. The packaging effect is poor, the thin film materials on the battery piece can be damaged by water and oxygen, and the performance of the battery piece is greatly reduced and even the working capacity is lost. In order to improve the stability of the photovoltaic cell and prolong the lifetime of the cell, it is also an important research direction to improve the packaging technology and efficiency.

The existing laboratory packaging technology mainly comprises ultraviolet lamp curing adhesive packaging and polymer film packaging, and the two packaging methods are manual operation methods, so that the close adhesion of a cell piece and a cover glass is difficult to ensure, and the photoelectric conversion efficiency of the photovoltaic cell piece is greatly reduced. In order to improve the stability of the battery piece, a packaging device is needed to automatically package the battery piece, so that the packaging yield of the battery piece is greatly improved.

SUMMERY OF THE UTILITY MODEL

A primary object of the present invention is to provide a hot-press packaging apparatus for photovoltaic cells to overcome the disadvantages of the prior art.

For realizing the purpose of the utility model, the utility model discloses a technical scheme include:

the embodiment of the utility model provides a hot pressing packaging equipment for photovoltaic cell, it includes:

the first die body is in transmission connection with a first driving mechanism and can move between a closed position and an open position under the driving of the first driving mechanism, when the first die body is positioned at the closed position, the first die body is combined with the second die body and forms a closed cavity in a surrounding manner, when the first die body is positioned at the open position, the first die body is separated from the second die body,

a first holding mechanism provided at a second region of the second mold body and configured to hold at least a cover glass,

the second fixing mechanism is arranged in the first area of the first mold body and at least used for fixing a battery piece, is in transmission connection with the second driving mechanism and can reach or leave a hot-pressing position under the driving of the second driving mechanism, and when the second fixing mechanism enters the hot-pressing position, the battery piece is attached to the cover glass, wherein the first area and the second area are both positioned in the closed cavity and are arranged oppositely;

a heating mechanism for heating at least the cover glass;

and the gas pumping and filling mechanism is at least used for discharging gas in the closed cavity to form a vacuum environment, or introducing protective gas into the closed cavity to form a protective gas environment.

And the control mechanism is connected with the first driving mechanism, the second driving mechanism, the heating mechanism and the gas pumping and filling mechanism.

Furthermore, the second mold body is provided with a first accommodating groove, the first fixing mechanism is arranged in the first accommodating groove, and the first accommodating groove and the first mold body can enclose to form the closed cavity.

Further, the first fixing mechanism comprises a fixing jig, the fixing jig is detachably arranged in the first accommodating groove, the fixing jig is provided with a second accommodating groove, and the cover glass can be arranged in the second accommodating groove.

Furthermore, a pressing plate is further arranged in the first accommodating groove, and the fixed jig is connected to the pressing plate through a threaded connecting piece.

Furthermore, a plurality of groups of threaded holes are formed in the pressing plate, each group of threaded holes comprises more than two threaded holes, and the position of each group of threaded holes is matched with a fixed jig with a preset size.

Furthermore, an elastic mechanism is arranged between the pressing plate and the bottom wall of the first accommodating groove, and the elastic mechanism is respectively connected with the pressing plate and the first accommodating groove.

Further, the elastic mechanism comprises a plurality of springs.

Further, the heating mechanism is directly connected with the second fixing mechanism in a heat conduction mode.

Further, heating mechanism includes ceramic heating plate, ceramic heating plate sets up between fixed tool and the clamp plate, and ceramic heating plate's shape, size are the same with fixed tool's size and shape.

Furthermore, the second fixing mechanism is also connected with a temperature sensor, and the temperature sensor is connected with the control mechanism.

Further, the second fixing mechanism comprises a battery piece clamp, and the battery piece clamp is provided with a containing hole for containing a battery piece.

Furthermore, the second fixing mechanism is arranged on a connecting component, the connecting component is fixedly arranged on a moving part of the second driving mechanism, and the second fixing mechanism is connected with the connecting component through a buckle connecting assembly.

In some specific embodiments, the thermal compression packaging equipment for the photovoltaic cell further comprises a travel switch, the travel switch is connected with the control mechanism, and the travel switch is at least used for controlling the maximum travel of the moving part of the second driving mechanism.

Further, the first driving mechanism is connected to the first mold body through a pin connector, wherein the pin connector may be configured as a member known to those skilled in the art.

Further, the first driving mechanism and the second driving mechanism comprise a driving motor or a driving cylinder and the like.

Furthermore, a guide rail is further arranged between the first mold body and the second mold body, one end of the guide rail is fixedly connected with the second mold body, and the first mold body is movably connected with the guide rail and can move along the guide rail.

Further, the guide rail is perpendicular to the first mold body and the second mold body respectively.

Further, at least one of the first mold body and the second mold body is provided with a sealing member, and when the first mold body is moved to the closed position, the sealing member of one of the first mold body and the second mold body can be in sealing combination with the other one of the first mold body and the second mold body.

Further, the sealing member includes a seal ring.

In some more specific embodiments, the hot-pressing packaging equipment for the photovoltaic cell further comprises a box body, the box body is provided with a box door which can be opened, the box body is provided with an operation screen and an emergency switch, the first die body, the second die body, the first driving mechanism, the second driving mechanism, the heating mechanism, the gas pumping and charging mechanism and the control mechanism are all arranged in the box body, and the second die body is fixedly arranged in the box body; the box body is also provided with a heat dissipation mechanism, and the heat dissipation mechanism is at least used for dissipating heat of the second mold body; the operation screen, the emergency switch and the heat dissipation mechanism are all connected with the control mechanism.

Compared with the prior art, the utility model has the advantages that:

1) the hot-pressing packaging equipment for the photovoltaic cell provided by the utility model is simple and convenient to operate and has good packaging effect;

2) the utility model provides a hot-pressing packaging device for photovoltaic cells, the packaging temperature is controllable, and the packaging temperature is adjusted to adapt to different hot melt adhesives, so as to achieve better packaging effect;

3) the utility model provides a hot pressing encapsulation equipment for photovoltaic cell, can pump to the vacuum state in the airtight cavity through the air pump and encapsulate, or fill protective gas such as nitrogen gas and encapsulate, guarantee that the battery piece does not receive the influence of factors such as air, moisture;

4) the utility model provides a hot pressing packaging equipment for photovoltaic cell, in the packaging process, the packaging effect of the cell can be adjusted by adjusting the pressing distance of the first die body, and the cell packaging is ensured to be bubble-free;

5) the utility model provides a pair of a hot pressing packaging equipment for photovoltaic cell, long service life, and simple structure is convenient for maintain.

Drawings

In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments described in the present application, and other drawings can be obtained by those skilled in the art without creative efforts.

Fig. 1 is a schematic structural diagram of a thermal compression packaging apparatus for a photovoltaic cell according to an exemplary embodiment of the present invention;

fig. 2 is a schematic structural diagram of a first mold body and a driving device of a thermal compression packaging apparatus for a photovoltaic cell according to an exemplary embodiment of the present invention;

fig. 3 is a schematic structural diagram of a second mold body of a thermal compression packaging apparatus for a photovoltaic cell according to an exemplary embodiment of the present invention;

fig. 4 is a schematic cross-sectional view of a second mold body according to an exemplary embodiment of the present invention.

Detailed Description

In view of the deficiencies in the prior art, the inventor of the present invention has made extensive studies and practices to provide the technical solution of the present invention. The technical solution, its implementation and principles, etc. will be further explained as follows.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Referring to fig. 1, in an exemplary embodiment of the present invention, a thermal compression packaging apparatus for a photovoltaic cell includes: a heating mechanism, a gas pumping and charging mechanism, a large motor, a small motor, a control mechanism and a control mechanism are arranged in the box body,

a first die body (also understood as an upper die) 9 and a second die body (also understood as a lower die) 10 which are arranged oppositely, wherein the second die body 10 is fixedly arranged under the first die body 9, a guide rail (or understood as a guide post) 2 is arranged between the first die body 9 and the second die body 10, the guide rail 2 is vertically arranged with the first die body 9 and the second die body 10, the lower end of the guide rail 2 is fixed on the second die body 10, the upper end of the guide rail is movably matched with the first die body 9, a first accommodating groove 25 which is formed by sinking inwards is arranged on the front surface of the second die body 10, a fixed fixture 21 is fixedly arranged in the first accommodating groove 25, a second accommodating groove is arranged on the fixed fixture 21, and a cover glass for packaging a battery piece can be arranged in the second accommodating groove; a large motor (namely, the first driving mechanism) 11 and a small motor (namely, the second driving mechanism) 13 are arranged above the first die body 9, the large motor 11 is in transmission connection with the first die body 9, the small motor 13 is in transmission connection with a battery piece clamp 16 arranged between the first die body 9 and the second die body 10, and the battery piece clamp 16 is used for fixing a battery piece to be packaged;

the first die body 9 can reciprocate along the guide rail 2 under the driving of the large motor 11, and then move between a closed position and an open position, when the first die body 9 is located at the closed position, the first die body 9 is combined with the second die body 10 and is enclosed with the first accommodating groove to form a closed cavity, the fixing jig 21 and the battery piece clamp 16 are located in the closed cavity, and when the first die body 9 is located at the open position, the first die body 9 is separated from the second die body 10; the cell clamp 16 can reach or leave the hot-pressing position under the driving of the small motor 13; when the cell clamp 16 reaches the hot-pressing position, the cell on the cell clamp 16 is attached to the cover glass on the fixing jig 21 under a certain pressure.

The heating mechanism is in heat conduction connection with the fixing jig 21 and is used for heating the cover glass on the fixing jig so as to enable the packaging adhesive on the cover glass; the gas pumping and filling mechanism is used for exhausting gas in the closed cavity to form a vacuum environment, or introducing protective gas into the closed cavity to form a protective gas environment; the control mechanism is connected with the large motor, the small motor, the heating mechanism and the gas pumping and filling mechanism and controls the working state of the heating mechanism.

Specifically, an upper die cover plate 15 is further fixedly arranged above the first die body 9, and the large motor 11 and the small motor 13 are arranged on the upper die cover plate 15.

Specifically, the moving part of the large motor 11 is connected with the upper mold cover plate 15 through a pin 12 and a transfer piece, and can also be fixedly connected through bolt fastening or other methods.

Specifically, a moving part of the small motor 13 is fixedly connected with a circular connecting column 18 and a battery piece clamp 16, and the circular connecting column 18 penetrates through a hole of the upper die cover plate 15 and is exposed from the other side of the first die body; the battery piece clamp 16 can be fixedly connected with the circular connecting column 18 through a screw or a buckle, the circular connecting column 18 can fix the battery piece clamp, a limiting effect is achieved, and the rotation angle of the battery piece clamp can be limited.

The small motor 13 is also connected with a protruding strip-shaped plate 14, the strip-shaped plate 14 is matched with a travel switch arranged above the upper die cover plate 15, and when the strip-shaped plate presses the travel switch, the small motor can be forced to stop running, so that the motor is protected; of course, a photo-electric sensing switch or other control switch may be used as the command-executing device for limiting the stroke of the motor.

Specifically, the battery piece clamp 16 is provided with a containing hole for fixing the battery piece, the containing hole is a square hole matched with the battery piece, and the battery piece can be placed in a square hole 17 on the square hole clamp 16;

specifically, a pressing plate 24 is fixedly arranged in the first accommodating groove of the second mold body 10, a plurality of threaded

holes

22 and 30 are formed in the pressing plate 24, the threaded holes are arranged according to a preset distribution mode, the fixing jig 21 is detachably fixed on the pressing plate 24 through a threaded connector and the threaded holes, and the fixing jig can be connected with different threaded holes for jigs of different sizes so as to package photovoltaic cells of different sizes.

Specifically, the heating mechanism is arranged between the fixed jig 21 and the pressing plate 24 and is in heat conduction connection with the fixed jig, wherein the heating mechanism can be a ceramic heating piece matched with the fixed jig in size and shape, the cover glass is guaranteed to be uniformly heated, only the cover glass part of the fixed jig is heated, the heating time of the cover glass is shortened, and the periphery of the fixed jig can not be heated.

The heating mechanism is also connected with a temperature sensor, the temperature sensor is connected with the control mechanism to realize the control of the heating temperature, the heating temperature can be set by the touch screen and the control mechanism, after reaching a certain temperature, the EVA film for encapsulation is placed on the cover glass to be melted, and then the battery piece clamp drives the battery piece to be pressed downwards to be attached to the cover glass through pressure; the area of the first accommodating groove of the second mold body is made of heat-resistant and heat-insulating materials, so that an operator can be prevented from being scalded, and for example, Teflon heat-resistant materials and the like can be adopted.

Specifically, a plurality of

springs

28 and 29 are fixedly arranged between the pressing plate 24 and the bottom wall of the first accommodating groove 25, and the

springs

28 and 29 can buffer the impact force generated when the small motor is pressed down and simultaneously enable the battery piece and the cover glass to be uniformly stressed during packaging.

Specifically, the pressing pressure can be adjusted by adjusting the pressing distance of the battery piece clamp, and then the packaging effect is changed.

Specifically, the second mold 10 is provided with mounting

holes

19, 20, 23, 26, and one end of the guide rail 2 is embedded in the mounting holes 19, 20, 23, 26; and a sealing ring is arranged between the first die body and the second die body so as to realize the sealing combination of the first die body and the second die body.

Specifically, the second mold body 10 is fixed on a lower mold sealing plate 27, and a plurality of springs are fixedly arranged between the lower mold sealing plate 27 and the box body to buffer the force applied to the large motor during pressing.

Specifically, the gas pumping and inflating mechanism comprises a gas pump and at least one adapter, an external gas conduit can be directly inserted into the adapter for fixation, and the gas pumping and inflating mechanism comprises two gas valves for matching with instructions of a control system and realizing the pumping and inflating of gas in the closed cavity in sequence; the gas evacuation and filling device can be a vacuum evacuation device or a gas supply for the supplied protective gas, which is commercially available.

Specifically, big motor and small motor can be connected with a travel switch, effectively prevents battery piece mounting fixture overrun, prolongs the life of motor.

Further, referring to fig. 1 again, the box body is provided with an openable safety door (i.e., the aforementioned box door) 1, a heat dissipation fan 3, an emergency switch 4, a start button 5, and a liquid crystal operation screen 7, wherein the safety door 1, the heat dissipation fan 3, the emergency switch 4, the start button 5, and the liquid crystal operation screen 7 are all connected to a control mechanism, the heat dissipation fan is mainly used for dissipating heat from the second mold body, the control mechanism may include components such as a PCL control system, and numerical control programs and control circuit structures adopted by the control mechanism may all adopt technologies and structures known to those skilled in the art, which are commercially available and will not be described herein.

Specifically, the control mechanism can encrypt the setting part of the equipment, and when the equipment is debugged or parameters are modified, a password is required to be input to enter a setting interface; when the safety door of the equipment is not closed, the equipment cannot run, and when the equipment runs, the emergency stop switch is pressed to enable the equipment to be in emergency stop.

The driving motor can be replaced by a screw rod device, a driving cylinder and the like.

In some more specific embodiments, the process of packaging the battery piece by using the device at least comprises the following steps:

1) the large motor 11 drives the first die body 9 to move downwards to reach a closed position, the first die body 9 and the second die body 10 are integrated to form a closed cavity, the control mechanism controls an air pump of the air pumping and inflating mechanism to pump air into the closed cavity to enable the closed cavity to reach a vacuum state, then a nitrogen pipe connected from the outside is used for filling nitrogen into the closed cavity, in the pumping and inflating process, the air pressure and the temperature in the closed cavity can be displayed in real time by the liquid crystal operation screen 7 and can be recorded by curves, and the pumping and inflating times in the closed cavity can be modified by the liquid crystal operation screen 7, so that the vacuum environment or the nitrogen atmosphere can be formed in the closed cavity during packaging;

2) after the gas pumping and filling mechanism pumps and fills gas in the closed cavity, the small motor 13 drives the battery piece clamp to move downwards to reach a pressing position, a cover glass packaged by the battery piece is placed in a second accommodating groove of the jig 21, a ceramic heating piece for heating is arranged below the fixed jig 21 to heat the cover glass on the fixed jig, the heating temperature can be set by the liquid crystal operation screen 7, and after the heating reaches a certain temperature, an EVA film for packaging is placed on the cover glass to be melted;

3) the small cell drives the cell clamp and the cell is pressed downwards, and the cell is attached to the cover glass by pressure and packaged;

4) after a certain pressing and maintaining time, the small motor 13 drives the battery piece clamp 16 to move upwards;

5) after a certain vacuum breaking time, the large motor 11 drives the first mold body 9 to move upwards, and the packaging is completed after the first mold body is in place, wherein the pressing maintaining time and the vacuum breaking time can be modified through the liquid crystal operation screen 7.

The utility model provides an equipment can be used for the encapsulation of battery piece, can guarantee that the battery piece encapsulates under the gas atmosphere that lets in or under the vacuum condition, and the temperature when can also control the encapsulation simultaneously makes the encapsulation of battery piece more convenient, has also improved the efficiency of encapsulation.

Compared with the prior art, the hot-pressing packaging equipment for the photovoltaic cell provided by the utility model has the advantages of simple operation and good packaging effect; the hot-pressing packaging equipment for the photovoltaic cell provided by the utility model has controllable packaging temperature, and can adapt to different hot melt adhesives by adjusting the packaging temperature so as to achieve better packaging effect; and, the utility model provides a hot pressing encapsulation equipment for photovoltaic cell, can pump to the vacuum state in the airtight cavity through the air pump and encapsulate, or fill protective gas such as nitrogen gas and encapsulate, guarantee that the battery piece does not receive the influence of factors such as air, moisture; additionally, the utility model provides a pair of a hot pressing packaging hardware for photovoltaic cell in packaging process, go back accessible and adjust the distance of pushing down of first die body, adjusts the encapsulation effect of battery piece, guarantees that the battery piece encapsulation is bubble-free.

It should be understood that the above-mentioned embodiments are merely illustrative of the technical concepts and features of the present invention, and the purpose thereof is to enable those skilled in the art to understand the contents of the present invention and to implement the present invention, and therefore, the protection scope of the present invention should not be limited thereby. All equivalent changes and modifications made according to the spirit of the present invention should be covered within the protection scope of the present invention.

Claims

1. A thermocompression bonding apparatus for photovoltaic cells, comprising:

a heating mechanism for heating at least the cover glass;

the gas pumping and filling mechanism is at least used for discharging gas in the closed cavity to form a vacuum environment, or introducing protective gas into the closed cavity to form a protective gas environment;

2. The thermocompression packaging apparatus for photovoltaic cells as recited in claim 1, wherein: the second die body is provided with a first accommodating groove, the first fixing mechanism is arranged in the first accommodating groove, and the first accommodating groove and the first die body can enclose to form the closed cavity.

3. The thermocompression packaging apparatus for photovoltaic cells as recited in claim 2, wherein: the first fixing mechanism comprises a fixing jig, the fixing jig is detachably arranged in the first accommodating groove, the fixing jig is provided with a second accommodating groove, and the cover glass can be arranged in the second accommodating groove.

4. The thermocompression packaging apparatus for photovoltaic cells as recited in claim 3, wherein: a pressing plate is further arranged in the first accommodating groove, and the fixing jig is connected to the pressing plate through a threaded connecting piece; and/or a plurality of groups of threaded holes are arranged on the pressing plate, each group of threaded holes comprises more than two threaded holes, and the position of each group of threaded holes is matched with a fixed jig with a preset size.

5. The thermocompression packaging apparatus for photovoltaic cells as recited in claim 4, wherein: an elastic mechanism is further arranged between the pressing plate and the bottom wall of the first accommodating groove and is respectively connected with the pressing plate and the first accommodating groove; and/or the elastic mechanism comprises a plurality of springs.

6. The thermocompression packaging apparatus for photovoltaic cells as recited in claim 4, wherein: the heating mechanism is directly connected with the second fixing mechanism in a heat conduction mode; and/or the heating mechanism comprises a ceramic heating sheet, and the ceramic heating sheet is arranged between the fixed jig and the pressing plate; and/or the second fixing mechanism is also connected with a temperature sensor, and the temperature sensor is connected with the control mechanism.

7. The thermocompression packaging apparatus for photovoltaic cells as recited in claim 1, wherein: the second fixing mechanism comprises a battery piece clamp, and the battery piece clamp is provided with a containing hole for containing a battery piece; and/or the second fixing mechanism is arranged on a connecting component, the connecting component is fixedly arranged on a moving part of the second driving mechanism, and the second fixing mechanism is connected with the connecting component through a clamping connection assembly.

8. The thermocompression packaging apparatus for photovoltaic cells according to claim 1, further comprising a travel switch connected to the control mechanism, wherein the travel switch is at least used for controlling the maximum travel of the moving part of the second driving mechanism; and/or the first driving mechanism is connected with the first die body through a pin shaft connecting piece; and/or the first driving mechanism and the second driving mechanism comprise driving motors or driving air cylinders.

9. The thermocompression packaging apparatus for photovoltaic cells as recited in claim 1, wherein: a guide rail is further arranged between the first die body and the second die body, one end of the guide rail is fixedly connected with the second die body, and the first die body is movably connected with the guide rail and can move along the guide rail; and/or the guide rail is perpendicular to the first mold body and the second mold body; and/or a sealing member is provided on at least one of the first and second mold bodies, the sealing member of one of the first and second mold bodies being capable of sealing engagement with the other when the first mold body is moved to the closed position; and/or, the sealing member comprises a sealing ring.

10. The hot-pressing packaging equipment for the photovoltaic cell according to any one of claims 1 to 9, further comprising a box body, wherein the box body is provided with a box door which can be opened, the box body is provided with an operation screen and an emergency switch, the first die body, the second die body, the first driving mechanism, the second driving mechanism, the heating mechanism, the gas pumping and filling mechanism and the control mechanism are all arranged in the box body, and the second die body is fixedly arranged in the box body; the box body is also provided with a heat dissipation mechanism, and the heat dissipation mechanism is at least used for dissipating heat of the second mold body; the operation screen, the emergency switch and the heat dissipation mechanism are all connected with the control mechanism.