A fully automatic thermoforming device and processing technology

Abstract

The present invention discloses a fully automatic thermoforming device, which belongs to the field of thermoforming. It comprises: a continuous heating and cleaning part, which comprises a support frame, a continuous heating conveying part, a heating and cleaning part and a heating and cleaning power part. The continuous heating conveying part drives the connected continuous heating conveying part to move on the support frame, and the heating and cleaning part is driven on the continuous heating conveying part to heat and soften the synchronously moving plastic sheet; a continuous thermoforming part to perform thermoforming on the softened plastic sheet; a continuous conveying power part to provide power to the continuous heating conveying part and the continuous thermoforming part at the same time, so as to meet the requirements that the continuous heating conveying part and the continuous thermoforming part move at the same speed and in the same direction at the same time. The present invention has simple equipment and process, high automation, small footprint, high production efficiency and high production quality, and can realize the coordinated cooling and hardening of plastic sheets and automatic cleaning, which significantly improves the production speed and cleaning speed of plastic sheets.

Description

Technical Field

[0001] The invention relates to the technical field of blister forming, and more specifically to a full-automatic blister heating forming device and a processing technology. Background Art

[0002] The blister forming device refers to a device that uses vacuum and different molds to process the preheated and softened thermoplastic plastic coils such as PVC, PE, PP, PET, HIPS, etc. into plastic products of various shapes. It is mainly used for the forming of thermoplastic sheets. The vacuum suction generated by the vacuum pump is used to change the shape of the heated and softened thermoplastic coil through the mold blister forming, so that it is formed close to the inner wall of the mold cavity, and after cooling and shaping, it is demolded to obtain various blister products. Food packaging boxes are an important type of blister products.

[0003] In the prior art, the softening and blister forming equipment for food packaging boxes all perform blister forming on the softened plastic sheet in a static state, and spray cooling gas on the softened and blister formed plastic sheet after the mold is opened to promote the cooling and hardening of the plastic sheet; the transfer can only be carried out after the plastic sheet is hardened, and the softening and blister forming operation can be performed on the next packaging box. This makes the softening and blister forming operation of the packaging box intermittent, which seriously affects the efficiency of softening and blister forming. In addition, due to the particularity of the use of food packaging boxes, food packaging boxes that directly hold food need to be cleaned before use to remove stains and microplastics in the production process that affect people's health. Existing softening and blister forming equipment often separates the processes of softening and blister forming and cleaning of food packaging boxes, which makes the existing softening and blister forming equipment production line very long, the process is complicated, the floor space is large, and the investment cost of production equipment is high. Summary of the invention

[0004] In order to overcome the above defects, the present invention provides a fully automatic thermoforming device and processing technology, which specifically adopts the following technical solutions:

[0005] A fully automatic thermoforming device, comprising:

[0006] A continuous heating and cleaning component, comprising a support frame, a continuous heating and conveying component, a heating and cleaning component and a heating and cleaning power component, wherein the continuous heating and conveying component drives the connected heating and cleaning component to move on the support frame, and the heating and cleaning component is driven on the continuous heating and conveying component to heat and soften the synchronously moving plastic sheet, and the heating and cleaning power component accelerates the hardening and automatically cleans the plastic sheet after the blister molding on the heating and cleaning component;

[0007] A continuous blister forming part, which is arranged on the support frame to perform blister forming on the softened plastic sheet, and cooperates with the heating and cleaning part to accelerate the hardening and automatically clean the plastic sheet after blister forming;

[0008] A continuous conveying power member, which is arranged on the support frame to provide power to the continuous heating conveying member and the continuous blister forming member at the same time, so as to ensure that the continuous heating conveying member and the continuous blister forming member move at the same speed and in the same direction at the same time;

[0009] The continuous heating conveying member includes a front-end conveying transmission member, a rear-end conveying transmission member and a conveyor belt, wherein the front-end conveying transmission member and the rear-end conveying transmission member are both arranged on the support frame, and the conveyor belt is simultaneously sleeved on the front-end conveying transmission member and the rear-end conveying transmission member; the heating and cleaning member includes a heating and cleaning transmission member and a heating and cleaning buckle member, wherein the heating and cleaning transmission member is driven on the conveyor belt, and the heating and cleaning buckle member is vertically driven on the heating and cleaning transmission member and buckled with the continuous blister forming member; the heating and cleaning transmission member includes a vertical pushing transmission member, a rotating cleaning member and an internal and external pressure balancing member, the vertical pushing transmission member includes a vertical pushing seat, a vertical sealing transmission member and a pushing position locking member, and the vertical pushing seat is in the The vertical sealing transmission component moves upward on the conveyor belt, and the vertical pushing position locking component is pushed by the cleaning liquid on the vertical pushing seat, and the vertical sealing transmission component that rises to a predetermined position is locked on the vertical pushing seat; the vertical pushing transmission component is driven on the conveyor belt, and the vertical pushing transmission component provides power for the vertical movement of the connected heating and cleaning buckle; the rotating cleaning component moves on the vertical pushing transmission component, and drives the cleaning liquid in the hardened and formed plastic sheet to rotate and clean; the internal and external pressure balancing component is on the rotating cleaning component, and adjusts the internal and external pressure balance of the vertical sealing transmission component, so that the cleaning liquid can enter the formed plastic sheet and be discharged from the formed, hardened and cleaned plastic sheet.

[0010] Preferably, the heating and cleaning buckle-fitting part comprises a heating buckle-fitting cover, a heater and a spring. The heating buckle-fitting cover is driven to move upward on the vertical sealing transmission part by the connected spring, thereby buckling the plastic sheet on the continuous blister forming part. The plastic sheet is heated and softened by the heater arranged on the heating buckle-fitting cover, thereby facilitating the blister forming of the continuous blister forming part.

[0011] Preferably, the heating and cleaning power component includes a liquid inlet conveying component and a liquid outlet conveying component. The liquid inlet conveying component is on the continuous heating conveying component, and conveys the cleaning liquid to the connected heating and cleaning component, so that a part of the cleaning liquid contacts the plastic sheet after the vacuum forming to accelerate the hardening and forming, and the other part of the cleaning liquid drives the rotating cleaning component to rotate; the liquid outlet conveying component is on the continuous heating conveying component, and discharges the cleaning liquid in the connected heating and cleaning component according to a predetermined procedure.

[0012] Preferably, the continuous blister forming part includes a continuous blister conveying part and a negative pressure blister forming part. The continuous blister conveying part has the same structure as the continuous heating conveying part, and the continuous blister conveying part is located above the continuous heating conveying part on the support frame to drive the connected negative pressure blister forming part and the heating and cleaning part to move accordingly, and to blister form the softened plastic sheet.

[0013] Preferably, the continuous conveying power member includes a cooperative transmission member and a conveying power member, the cooperative transmission member is simultaneously connected to the continuous heating conveying member and the continuous blister conveying member on the support frame, and the conveying power member provides power to the connected cooperative transmission member on the support frame.

[0014] Preferably, the processing technology of the fully automatic thermoforming device comprises the following steps:

[0015] 1) The plastic sheet is fed by a feed roll at a parallel constant speed and enters between the negative pressure blister forming part and the heating and cleaning part;

[0016] 2) starting the continuous conveying power element to drive the negative pressure blister forming element and the heating and cleaning element to move at the same speed and in the same direction as the plastic sheet;

[0017] 3) A predetermined volume of the cleaning liquid is input into the vertical pushing seat to push the vertical sealing transmission member upward to a certain height, so that the vertical sealing transmission member drives the heating buckle cover upward to buckle the plastic sheet onto the port of the negative pressure blister molding member in a sealed manner;

[0018] 4) after turning on the heater to radiate and soften the plastic sheet, negative pressure adsorption is performed on the negative pressure blister forming part to blister form the softened plastic sheet;

[0019] 5) continuously filling the cleaning liquid into the vertical push seat to drive the vertical sealing transmission member to rise to a sealing connection with the port of the heating buckle cover, and locking the vertical sealing transmission member in height by the push position locking member;

[0020] 6) Turning on the rotating cleaning member allows the cleaning liquid in the vertical push seat to enter and fill the plastic sheet after the vacuum forming;

[0021] 7) continuously injecting the cleaning liquid into the vertical pushing seat, so that the cleaning liquid in the vertical pushing seat flows from bottom to top, so as to drive the rotating cleaning member to rotate, thereby driving the stirring plate of the rotating cleaning member to rotate, stirring the cleaning liquid in the hardened plastic sheet to rotate, thereby improving the cleaning quality and cleaning efficiency of the hardened plastic sheet by the cleaning liquid;

[0022] 8) After the plastic sheet is cleaned, the cleaning liquid in the vertical push seat and the plastic sheet is discharged;

[0023] 9) The vertical sealing transmission member is released and reset by the push position locking member.

[0024] The present invention has at least the following beneficial effects:

[0025] 1) The fully automatic thermoforming device and processing equipment of the present invention are simple in process, highly automated, small in floor space, highly efficient, and of high quality, and can realize the coordinated cooling and hardening of plastic sheets and automatic cleaning, thereby significantly improving the production speed and cleaning speed of plastic sheets;

[0026] 2) The fully automatic thermoforming device and processing technology of the present invention are provided with a heating and cleaning buckle, a negative pressure thermoforming component and a rotating cleaning component. The heating and cleaning buckle and the negative pressure thermoforming component soften the plastic sheet and thermoform it during transportation; the rotating cleaning component guides the cleaning liquid into the softened thermoforming plastic sheet, so that after the plastic sheet is hardened, the rotating cleaning component drives the cleaning liquid to rotate and clean the plastic sheet, and then guides the cleaning liquid out, so that the thermoforming plastic sheet is cooled and hardened and automatically cleaned in coordination, which significantly improves the production efficiency and cleaning efficiency of the plastic sheet, and significantly reduces the complexity of the hot pressing molding equipment and process.

[0027] Other advantages, objectives and features of the present invention will be embodied in part through the following description, and in part will be understood by those skilled in the art through study and practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 This is a front view of the fully automatic thermoforming device of the present invention;

[0029] Figure 2 The fully automatic thermoforming device of the present invention Figure 1 A partial enlarged view of middle C;

[0030] Figure 3 This is a front view of the fully automatic thermoforming device of the present invention;

[0031] Figure 4 It is a schematic diagram of the three-dimensional structure of the fully automatic thermoforming device of the present invention;

[0032] Figure 5 The fully automatic thermoforming device of the present invention Figure 4 A partial enlarged view of D in the middle;

[0033] Figure 6The fully automatic thermoforming device of the present invention Figure 3 Schematic diagram of the three-dimensional structure of the cross section in the AA direction;

[0034] Figure 7 The fully automatic thermoforming device of the present invention Figure 6 A partial enlarged view of E in the middle;

[0035] Figure 8 The fully automatic thermoforming device of the present invention Figure 3 Main section view in the middle BB direction;

[0036] Fig. 9 The fully automatic thermoforming device of the present invention Figure 8 A partial enlarged view of middle F;

[0037] Fig.10 The fully automatic thermoforming device of the present invention Fig. 9 A partial enlarged view of middle G;

[0038] Fig.11 The fully automatic thermoforming device of the present invention Fig. 9 A partial enlarged view of H in the middle;

[0039] Fig.12 The fully automatic thermoforming device of the present invention Figure 3 Schematic diagram of the three-dimensional structure of the cross section in the middle BB direction;

[0040] Fig.13 The fully automatic thermoforming device of the present invention Fig.12 A partial enlarged view of middle I;

[0041] Fig.14 It is a three-dimensional structural schematic diagram of the angle flow delivery valve in the fully automatic thermoforming device of the present invention.

[0042] Among them: 1-support frame, 2-plastic sheet, 3-rear end conveying transmission member, 4-conveyor belt, 5-rotating transmission shaft, 6-rotating transmission wheel, 7-vertical push seat, 8-pad, 9-first solenoid valve, 10-second solenoid valve, 11-vertical transmission pipe, 12-sealing plate, 13-sealed cover, 14-locking pipe, 15-locking rod, 16-rotating transmission pipe, 17-rotating cleaning transmission pipe, 18-stirring plate, 19-propeller blade, 20-first relay pipe, 21-second relay pipe, 22-third solenoid valve, 23-buoyancy plate, 24-ventilation mother pipe, 25-ventilation male pipe, 26-telescopic hose, 27-heating buckle Cover, 28-heater, 29-spring, 30-liquid delivery member, 31-first relay hose, 32-second relay hose, 33-first connecting block, 34-third relay tube, 35-angle flow valve, 36-fixed shaft, 37-fixed rod, 38-rotating liquid delivery shell, 39-fourth relay tube, 40-continuous blister delivery member, 41-blister mold, 42-third relay hose, 43-fifth relay tube, 44-rotating gas delivery shell, 45-power transmission shaft, 46-first worm, 47-first worm wheel, 48-second worm, 49-second worm wheel, 50-motor, 51-third worm, 52-third worm wheel. DETAILED DESCRIPTION

[0043] The technical solution of the present invention will be described in detail below by way of embodiments with reference to the accompanying drawings. It should be noted that the description of these embodiments is used to help understand the present invention, but does not constitute a limitation of the present invention.

[0044] The term "and / or" in this article is only a description of the association relationship of associated objects, indicating that there can be three relationships. For example, A and / or B can mean: A exists alone, B exists alone, and A and B exist at the same time. The term " / and" in this article describes another type of association object relationship, indicating that there can be two relationships. For example, A / and B can mean: A exists alone, and A and B exist alone. In addition, the character " / " in this article generally indicates that the previous and next associated objects are in an "or" relationship.

[0045] according to Figure 1-Figure 14 As shown, a fully automatic thermoforming device and processing technology includes a continuous heating and cleaning component, a continuous thermoforming component and a continuous conveying power component, and the continuous thermoforming component and the continuous conveying power component are both arranged on the continuous heating and cleaning component. The continuous heating and cleaning component includes a support frame 1, a continuous heating and conveying component, a heating and cleaning component and a heating and cleaning power component, and the continuous heating and conveying component and the heating and cleaning power component are both arranged on the support frame 1, and the heating and cleaning component is arranged on the continuous heating and conveying component.

[0046] The continuous heating conveyor element includes a front-end conveyor transmission element, a rear-end conveyor transmission element 3 and a conveyor belt 4. The front-end conveyor transmission element and the rear-end conveyor transmission element 3 are both arranged on the support frame 1, and the conveyor belt 4 is arranged on the front-end conveyor transmission element and the rear-end conveyor transmission element 3.

[0047] The front-end conveying transmission member includes a rotating transmission shaft 5 and a rotating transmission wheel 6. The two ends of the rotating transmission shaft 5 are respectively rotated and penetrated on the front end of the support frame 1, and the rotating transmission wheel 6 is fixedly sleeved on the rotating transmission shaft 5. Further, the rotating transmission shaft 5 is tubular, and the two end faces of the rotating transmission shaft 5 are closed, and a blocking plate is arranged in the middle of the axial direction of the rotating transmission shaft 5, and the blocking plate can prevent the two ends of the rotating transmission shaft 5 from penetrating. The rear-end conveying transmission member 3 has the same structure as the front-end conveying transmission member, and the rear-end conveying transmission member 3 is arranged on the rear end of the support frame 1, and the connection relationship between the rear-end conveying transmission member 3 and the support frame 1 is the same as the connection relationship between the front-end conveying transmission member and the support frame 1. The conveyor belt 4 is simultaneously fitted on the rotating transmission wheel 6 and the rotating transmission wheel of the rear-end conveying transmission member 3. As an option, the conveyor belt 4 is in the shape of a synchronous belt, and the rotating transmission wheel 6 is in the shape of a synchronous wheel. Further, the length of the rotating transmission wheel 6 is less than the width of the conveyor belt 4.

[0048] The heating and cleaning component includes a heating and cleaning transmission component and a heating and cleaning buckle component. The heating and cleaning transmission component is arranged on the continuous heating conveying component, and the heating and cleaning buckle component is arranged on the heating and cleaning transmission component.

[0049] The heating and cleaning transmission member includes a vertical push transmission member, a rotating cleaning member and an internal and external pressure balance member. The vertical push transmission member is arranged on the continuous heating conveying member, the rotating cleaning member is arranged on the vertical push transmission member, and the internal and external pressure balance member is arranged on the rotating cleaning member. The vertical push transmission member includes a vertical push seat 7, a vertical sealing transmission member and a push position locking member. The vertical push seat 7 is tubular, and both end faces of the vertical push seat 7 are closed. One end of the vertical push seat 7 is vertically arranged on the pad 8 on the conveyor belt 4 to maintain its stability. The pad 8 is in the shape of a long strip, and one end face of the pad 8 is fastened to the conveyor belt 4 along its longitudinal direction through multiple rivets to ensure the connection firmness of the pad 8 during the rotation of the pad 8 with the conveyor belt 4 on the rotating transmission wheel 6. Further, three pads 8 are arranged, and the three pads 8 are parallel to each other, and only the other end face of the middle pad 8 is fixedly connected to one end face of the vertical push seat 7. A first electromagnetic valve 9 is connected through a side wall at one end of the vertical push seat 7 , and a second electromagnetic valve 10 is connected through a side wall at the other end of the vertical push seat 7 .

[0050] The vertical sealing transmission member includes a vertical transmission tube 11, a sealing plate 12 and a sealing cover 13. One end of the vertical transmission tube 11 slides through the vertical push seat 7, and the axis of the vertical transmission tube 11 coincides with the axis of the vertical push seat 7. The sealing plate 12 is in the shape of a circular ring plate. The sealing plate 12 is fixedly mounted on one end of the vertical transmission tube 11, and a sliding sealing ring is provided on the outer surface of the sealing plate 12, so that the sealing plate 12 is slidably sealed with the inner wall of the vertical push seat 7 through the sliding sealing ring, that is, the sealing plate 12 separates the two ends of the vertical push seat 7 into a lower sealing chamber and an upper sealing chamber. The sealing cover 13 is in the shape of a trumpet tube, and the lower end of the sealing cover 13 is connected to the other end of the vertical transmission tube 11 to prevent the cleaning liquid from contacting the heater 28 of the heating and cleaning buckle to cause a malfunction.

[0051] It should be noted that when the cleaning liquid enters the lower sealing chamber from the first solenoid valve 9, it will push the sealing plate 12 upward. When the sealing plate 12 rises to the limit position, the second solenoid valve 10 is connected with the first solenoid valve 9, so that the cleaning liquid of the vertical pushing seat 7 flows out from the second solenoid valve 10, and then the rotating cleaning part is driven to rotate by the cleaning liquid flowing from bottom to top.

[0052] The push position locking member includes a locking tube 14, a magnetic coil and a locking rod 15. One end of the locking tube 14 is set through the other end surface of the vertical push seat 7. The magnetic coil is fixedly embedded in the spiral groove on the inner wall of the locking tube 14. One end of the locking rod 15 is vertically fixed on the top surface of the sealing plate 12, and the axis of the locking rod 15 coincides with the axis of the locking tube 14, so that the other end of the locking rod 15 can be inserted into the locking tube 14 and axially locked in the locking tube 14 by the magnetic coil that generates a magnetic field through direct current. Further, the push position locking member is provided with four sets, and the four sets of the push position locking members are evenly distributed along the circumference.

[0053] The rotating cleaning part includes a rotating transmission tube 16, a rotating cleaning transmission tube 17, a stirring plate 18, a propeller blade 19, a first relay tube 20, a second relay tube 21 and a third solenoid valve 22. The rotating transmission tube 16 is rotationally sealed and embedded in the vertical transmission tube 11, so that the rotating transmission tube 16 rotates circumferentially and is axially locked in the vertical transmission tube 11. The rotating cleaning transmission tube 17 is in the shape of a trumpet tube, and the small end of the rotating cleaning transmission tube 17 is connected to one end of the rotating transmission tube 16. The stirring plate 18 is in the shape of a rectangular plate, and the side of the stirring plate 18 is fixedly arranged on the inner wall of the large end of the rotating cleaning transmission tube 17, driving the cleaning liquid to rotate for cleaning. The paddle is arranged on the side wall of the other end of the rotating transmission tube 16 to drive the rotating transmission tube 16 to rotate. The first relay pipe 20 is in the shape of a trumpet tube, and the large end of the first relay pipe 20 is fixedly connected to the other end of the rotating transmission pipe 16, and the second relay pipe 21 is in the shape of a curved tube, and one end of the second relay pipe 21 is connected to the small end of the first relay pipe 20. The third solenoid valve 22 is arranged in the other end of the second relay pipe 21 to control the cleaning liquid to flow upward through the rotating transmission pipe 16.

[0054] The internal and external pressure balance member includes a buoyancy plate 23, a ventilation main pipe 24, a ventilation male pipe 25 and a telescopic hose 26. The diameter of the buoyancy plate 23 is larger than the outer diameter of the rotary transmission pipe 16. The buoyancy plate 23 is located in the rotary cleaning transmission pipe 17. One end of the ventilation main pipe 24 is through-set on the buoyancy plate 23. One end of the ventilation male pipe 25 is slidingly sealed and embedded in the other end of the ventilation main pipe 24. The other end of the ventilation male pipe 25 is sealed and penetrates the side wall of the second relay pipe 21. One end of the telescopic hose 26 is through-connected to the other end of the ventilation male pipe 25. The other end of the telescopic hose 26 penetrates the side wall of one end of the vertical push seat 7. Further, the telescopic hose 26 is in the shape of a spring tube and can be extended and shortened. When the cleaning liquid flows upward from the rotating transmission tube 16 into the plastic sheet 2 after blister forming, the air is discharged outward through the ventilation main tube 24, the ventilation male tube 25 and the telescopic hose 26, so as to maintain the internal and external pressure balance, and facilitate the cleaning liquid to enter and exit the plastic sheet 2 after blister forming.

[0055] The heating and cleaning buckle comprises a heating buckle cover 27, a heater 28 and a spring 29. The heating buckle cover 27 is generally tubular, and a sliding through hole is provided on one end surface of the heating buckle cover 27. The heating buckle cover 27 is slidably sleeved on the other end of the vertical transmission pipe 11 through the sliding through hole. The heater 28 is generally annular, and the heater 28 is arranged in the expansion section at the other end of the heating buckle cover 27. The expansion section is in the shape of an annular groove, and the axis of the expansion section coincides with the axis of the heating buckle cover 27. Further, the cross section of the expansion section is in the shape of a right-angle annular groove, and the diameter of the expansion section is larger than the inner diameter of the heating buckle cover 27. As an option, a reflective insulation board is provided on the inner wall of the expansion section below the heater 28 to emit the heat radiation generated by the heater 28 from the other end of the heating buckle cover 27, so as to improve the heating and softening efficiency of the plastic sheet 2. The spring 29 is sleeved outside the vertical transmission tube 11, and one end of the spring 29 is fixedly connected to the other end of the vertical transmission tube 11, and the other end of the spring 29 is fixedly connected to the inner side of one end surface of the heating buckle cover 27. In the process of the vertical transmission tube 11 rising axially, the heating buckle cover 27 is driven by the spring 29 to move upward.

[0056] Four sets of heating and cleaning parts are provided, and the four sets of heating and cleaning parts are evenly spaced on the conveyor belt 4, so as to continuously operate the plastic sheet 2, and facilitate the continuous and non-interrupted blister thermoforming operation of the plastic sheet 2, and significantly improve the efficiency of blister thermoforming.

[0057] The heating and cleaning power part includes a liquid inlet conveying part and a liquid outlet conveying part 30, and the liquid inlet conveying part and the liquid outlet conveying part 30 are both arranged on the continuous heating conveying part. The liquid inlet conveying part includes a first relay hose 31, a second relay hose 32, a first connecting block 33, a third relay tube 34, an angle flow valve 35, a fixed shaft 36, a fixed rod 37, a rotating liquid infusion shell 38 and a fourth relay tube 39. The two ends of the first relay hose 31 are connected through, and the first relay hose 31 is fixedly sleeved on one side of the conveyor belt 4. One end of the second relay hose 32 is connected through with the free end of the first solenoid valve 9, and the other end of the second relay hose 32 is connected through with the side wall of the first relay hose 31. The four second relay hoses 32 correspond to the four sets of the heating and cleaning parts one by one. The first connection block 33 is fixedly arranged on the inner side of one side edge of the conveyor belt 4, and a quick connection female connector is fixedly embedded in the first connection block 33. One end of the quick connection female connector passes through the conveyor belt 4 and is connected to the side wall of the first relay hose 31. Furthermore, the quick connection female connector has a one-way flow function for the internal medium. Thirty-six first connection blocks 33 are arranged, and the thirty-six first connection blocks 33 are evenly spaced on the conveyor belt 4.

[0058] One end of the third relay tube 34 is connected to the side wall of one end of the rotating transmission shaft 5, and the side wall of the third relay tube 34 is connected to one end surface of the rotating transmission wheel 6, and the axis of the third relay tube 34 is parallel to the radial line of the rotating transmission wheel 6, so that the third relay tube 34 rotates with the rotation of the rotating transmission wheel 6. A quick connection male head is arranged on the other end of the third relay tube 34, so that the third relay tube 34 can drive the quick connection male head to cooperate with the seal and insert into the quick connection female head during the rotation of the rotating transmission wheel 6. In order to inject the cleaning liquid in the rotating transmission shaft 5 into the first relay hose 31, and then enter the vertical push seat 7. Further, the third relay tube 34 is provided with six, and the six third relay tubes 34 are evenly distributed around the rotating transmission shaft 5. It should be noted that when the quick connection male head is detached from the quick connection female head, the quick connection female head can automatically prevent the flow medium in the first relay hose 31 from leaking out.

[0059] The angle flow delivery valve 35 is cylindrical in shape as a whole, and a fan-shaped groove is arranged on the side wall of the angle flow delivery valve 35. The two ends of the fan-shaped groove are connected with the two end surfaces of the angle flow delivery valve 35, and the center of the fan-shaped groove coincides with the axis of the angle flow delivery valve 35. As an option, the center angle of the fan-shaped groove is not greater than 160 degrees. The angle flow delivery valve 35 is circumferentially sealed and rotatably embedded in one end tube of the rotating transmission shaft 5. One end of the fixed shaft 36 is rotatably penetrated into the rotating transmission shaft 5, and the fixed shaft 36 and one end surface of the rotating transmission shaft 5 are subjected to a rotational sealing treatment, and at the same time, one end of the fixed shaft 36 is fixedly connected to one end surface of the angle flow delivery valve 35. One end of the fixed rod 37 is fixedly connected to the support frame 1, and the other end of the fixed rod 37 is fixedly connected to the other end of the fixed shaft 36. The fixed rod 37 rotates the angle flow delivery valve 35 relatively circumferentially and locks it axially in the tube of the rotating transmission shaft 5 through the fixed shaft 36, so that the opening of the fan-shaped groove faces the front end of the support frame 1. Then, the cleaning liquid in the rotating transmission shaft 5 flows into the third relay pipe 34 which rotates circumferentially to the front end through the fan-shaped groove, while no cleaning liquid flows into the third relay pipe 34 which is not connected to the fan-shaped groove, thereby preventing the cleaning liquid from leaking out.

[0060] The rotating infusion shell 38 is tubular, and a rotating infusion groove is provided on the inner wall of the rotating infusion shell 38, and the rotating infusion groove is an annular groove. The rotating infusion shell 38 is rotatingly sealed and sleeved on the outer wall of one end of the rotating transmission shaft 5, and the rotating infusion groove is connected with the tube of the rotating transmission shaft 5 through the infusion through hole on the side wall of the rotating transmission shaft 5. Further, one end face of the rotating infusion shell 38 is fixedly connected to the support frame 1. One end of the fourth relay tube 39 is connected to the rotating infusion shell 38, and the other end of the fourth relay tube 39 is connected to the hydraulic pump.

[0061] The liquid outlet conveying member 30 has the same structure as the liquid inlet conveying member, and the liquid outlet conveying member 30 is connected to the second electromagnetic valve 10, and the connection mode between the liquid outlet conveying member 30 and the conveyor belt 4 is the same as the connection mode between the liquid inlet conveying member and the conveyor belt 4, the connection mode between the liquid outlet conveying member 30 and the rotating transmission wheel 6 is the same as the connection mode between the liquid inlet conveying member and the rotating transmission wheel 6, and the connection mode between the liquid outlet conveying member 30 and the rotating transmission shaft 5 is the same as the connection mode between the liquid inlet conveying member and the rotating transmission shaft 5. In order to facilitate the cleaning liquid in the vertical push seat 7 to flow outward through the second electromagnetic valve 10 and the liquid outlet conveying member 30, so that the cleaning liquid flowing in the vertical push seat 7 drives the propeller blade 19 to rotate.

[0062] As an option, the support frame 1 is further provided with a stabilizing support plate, which is in the shape of a rectangular plate and is connected to the support frame 1 through stabilizing support legs, so that the stabilizing support plate is horizontally arranged at the lower surface of the upper side of the conveyor belt 4. Furthermore, the surface of the stabilizing support plate is smooth to reduce the friction with the conveyor belt 4. When the heating buckle cover 27 rises and is sealed and pressed on the connecting blister molding, the stability of the heating buckle cover 27 is improved, thereby improving the pressing and sealing effect, preventing the cleaning liquid from leaking out, and improving the cleaning quality and efficiency.

[0063] The continuous blister forming part includes a continuous blister conveying part 40 and a negative pressure blister forming part, wherein the continuous blister conveying part 40 is arranged on the support frame 1, and the negative pressure blister forming part is arranged on the continuous blister conveying part 40. The continuous blister conveying part 40 has the same structure as the continuous heating conveying part, and the continuous blister conveying part 40 is located on the support frame 1 directly above the continuous heating conveying part to drive the negative pressure blister forming part to move.

[0064] The negative pressure blister molding part includes a blister mold 41, a third relay hose 42, a fourth relay hose, a second connection block, a fifth relay pipe 43, an angle air supply valve, a locking shaft, a locking connecting rod, a rotating air supply shell 44 and a sixth relay pipe. The blister mold 41 is arranged on the conveyor belt 4 of the continuous blister conveyor 40, and the connection mode between the blister mold 41 and the conveyor belt 4 of the continuous blister conveyor 40 is the same as the connection mode between the vertical push seat 7 and the conveyor belt 4. The blister mold 41 is used for negative pressure absorption and heating to soften the plastic sheet 2. A fourth solenoid valve is provided through the blister hole port on the blister mold 41, and a fifth solenoid valve is provided on the blister mold 41, and the fifth solenoid valve is connected to the blister hole. Further, four blister molds 41 are provided, and the four blister molds 41 are evenly spaced on the conveyor belt of the continuous blister conveyor 40, and the four blister molds 41 correspond to the four heating buckle covers 27 one by one.

[0065] The third relay hose 42 has the same structure as the first relay hose 31, and the connection relationship between the first relay hose 31 and the conveyor belt 4 is the same as the connection relationship between the third relay hose 42 and the conveyor belt of the continuous blister conveyor 40. One end of the fourth relay hose is connected to the free end of the third solenoid valve 22, and the other end of the fourth relay hose is connected to the side wall of the third relay hose 42. The second connection block has the same structure as the first connection block 33, and the connection method between the second connection block and the conveyor belt of the continuous blister conveyor 40 is the same as the connection method between the first connection block 33 and the conveyor belt 4; and the connection method between the second connection block and the third relay hose 42 is the same as the connection method between the first connection block 33 and the first relay hose 31.

[0066] The connection relationship between the fifth relay tube 43 and the other end of the rotating transmission shaft 5 is the same as the connection relationship between the third relay tube 34 and one end of the rotating transmission shaft 5. The angle gas supply valve has the same structure as the angle flow supply valve 35. The angle gas supply valve is rotationally sealed and embedded in the tube at the other end of the rotating transmission shaft 5 through the locking shaft and the locking connecting rod, and the connection method between the angle gas supply valve and the rotating transmission shaft 5 is the same as the connection method between the angle flow supply valve 35 and the rotating transmission shaft 5. The rotating gas supply shell 44 has the same structure as the rotating liquid infusion shell 38. The rotating gas supply shell 44 is sealed and rotationally penetrated and sleeved on the other end of the rotating transmission shaft 5, and the connection relationship between the rotating gas supply shell 44 and the rotating transmission shaft 5 is the same as the connection relationship between the rotating liquid infusion shell 38 and the rotating transmission shaft 5. One end of the sixth relay tube is through-connected to the rotating gas supply shell 44, and the other end of the sixth relay tube is through-connected to the negative pressure pump.

[0067] The continuous conveying power member includes a cooperative transmission member and a conveying power member, and the cooperative transmission member and the conveying power member are both arranged on the support frame 1. The cooperative transmission member includes a power transmission shaft 45, a first worm 46, a first worm wheel 47, a second worm 48 and a second worm wheel 49. The two ends of the power transmission shaft 45 are respectively arranged on the power transmission seat on the support frame 1, so that the power transmission shaft 45 can rotate circumferentially on the support frame 1. The first worm 46 is fixedly sleeved on the power transmission shaft 45, the first worm wheel 47 is fixedly sleeved on the rotating transmission shaft of the rear end conveying transmission member 3, and the first worm wheel 47 is meshed with the first worm 46. The second worm 48 is fixedly sleeved on the power transmission shaft 45, the second worm wheel 49 is fixedly sleeved on the rotating transmission shaft of the continuous blister conveying member 40, and the second worm wheel 49 is meshed with the second worm 48.

[0068] The conveying power component includes a motor 50, a third worm 51 and a third worm wheel 52. The motor 50 is fixedly arranged on the support frame 1, the third worm 51 is arranged on the rotating shaft of the motor 50, the third worm wheel 52 is fixedly sleeved on the power transmission shaft 45, and the third worm wheel 52 is meshed with the third worm 51.

[0069] It should be noted that the cleaning liquid is clean water or a liquid that evaporates by itself and leaves no residue.

[0070] The processing technology of the fully automatic blister heating forming device comprises the following steps:

[0071] 1) The plastic sheet 2 is fed by the feeding roll at a parallel constant speed into between the negative pressure blister forming part and the heating and cleaning part;

[0072] 2) starting the continuous conveying power element to drive the negative pressure blister forming element and the heating and cleaning element to move at the same speed and in the same direction as the plastic sheet 2;

[0073] 3) A predetermined volume of the cleaning liquid is input into the lower sealing cavity to push the vertical sealing transmission member upward to a predetermined distance; the vertical sealing transmission member drives the heating buckle cover 27 upward through the spring 29 to buckle the plastic sheet 2 upward on the port of the blister mold 41;

[0074] 4) After the heater 28 is turned on to radiate and soften the plastic sheet 2, negative pressure adsorption is performed on the blister mold 41 to blister-form the softened plastic sheet 2 in the blister mold 41;

[0075] 5) Continuously pressurizing the lower sealed cavity to drive the sealed cover 13 to rise to the port of the heating buckle cover 27, and the outer wall of the sealed cover and the inner wall of the port of the heating buckle cover 27 are slidably sealed to seal the heater 28 from the blister-formed plastic sheet 2 (at this time, the blister-formed plastic sheet 2, the sealed cover and the rotating transmission tube 16 together constitute a sealed chamber); the height of the sealed cover is locked by the push position locking member;

[0076] 6) Open the third solenoid valve 22, so that the cleaning liquid in the vertical push seat 7 enters through the rotating transmission tube 16 and fills the plastic sheet 2 after the blister molding; the plastic sheet 2 after the blister molding contacts with the cleaning liquid and then cools and hardens (at this time, open the fifth solenoid valve to release the negative pressure of the blister mold 41, so as to facilitate the demoulding of the plastic sheet 2 after cooling and hardening; when the cleaning liquid enters the plastic sheet 2 after the blister molding, the air is discharged from the internal and external pressure balance member to the outside to maintain the internal and external pressure balance, and then close the third solenoid valve 2);

[0077] 7) opening the second solenoid valve 10, and continuously inputting the cleaning liquid from the first solenoid valve 9 into the vertical push seat 7, so that the cleaning liquid in the vertical push seat 7 flows from bottom to top, so as to drive the propeller blade 19 to rotate, and then drive the stirring plate 18 to rotate through the rotating transmission pipe 16, so as to stir the cleaning liquid in the cooled and hardened plastic sheet 2 to rotate, thereby improving the cleaning quality and cleaning efficiency of the cooled and hardened plastic sheet 2 by the cleaning liquid;

[0078] 8) After the cooling and hardening of the plastic sheet 2 is cleaned, the first solenoid valve 9 is closed and the third solenoid valve 22 is opened to discharge the cleaning liquid in the cooling and hardening plastic sheet 2 from the second solenoid valve 10;

[0079] 9) The height of the vertical sealing transmission component is released by the pushing position locking component, so that the vertical sealing transmission component is reset. At this time, the heating buckle cover 27 is separated from the blister mold 41. After that, as the negative pressure blister molding component and the heating and cleaning component move forward to a predetermined position, the negative pressure blister molding component and the heating and cleaning component move away from each other, so that the plastic sheet 2 is demoulded.

[0080] Although the embodiments of the present invention have been disclosed as above, they are not limited to the applications listed in the specification and the implementation modes, and they can be fully applied to various fields suitable for the present invention. For those familiar with the art, additional modifications can be easily implemented. Therefore, without departing from the general concept defined by the claims and the scope of equivalents, the present invention is not limited to the specific details and the illustrations shown and described herein.

Claims

1. A fully automatic thermoforming device, characterized in that: include: A continuous heating and cleaning component, comprising a support frame, a continuous heating and conveying component, a heating and cleaning component and a heating and cleaning power component, wherein the continuous heating and conveying component drives the connected heating and cleaning component to move on the support frame, and the heating and cleaning component is driven on the continuous heating and conveying component to heat and soften the synchronously moving plastic sheet, and the heating and cleaning power component accelerates the hardening and automatically cleans the plastic sheet after the blister molding on the heating and cleaning component; A continuous blister forming part, which is arranged on the support frame to perform blister forming on the softened plastic sheet, and cooperates with the heating and cleaning part to accelerate the hardening and automatically clean the plastic sheet after blister forming; A continuous conveying power member, which is arranged on the support frame to provide power to the continuous heating conveying member and the continuous blister forming member at the same time, so as to ensure that the continuous heating conveying member and the continuous blister forming member move at the same speed and in the same direction at the same time; The continuous heating conveying member includes a front-end conveying transmission member, a rear-end conveying transmission member and a conveyor belt, wherein the front-end conveying transmission member and the rear-end conveying transmission member are both arranged on the support frame, and the conveyor belt is simultaneously sleeved on the front-end conveying transmission member and the rear-end conveying transmission member; the heating and cleaning member includes a heating and cleaning transmission member and a heating and cleaning buckle member, wherein the heating and cleaning transmission member is driven on the conveyor belt, and the heating and cleaning buckle member is vertically driven on the heating and cleaning transmission member to buckle with the continuous blister forming member; the heating and cleaning transmission member includes a vertical pushing transmission member, a rotating cleaning member and an internal and external pressure balancing member, wherein the vertical pushing transmission member The push transmission member includes a vertical push seat, a vertical sealing transmission member and a push position locking member. The vertical push seat moves with the conveyor belt, the vertical sealing transmission member is pushed by the cleaning liquid on the vertical push seat and moves upward, and the push position locking member locks the vertical sealing transmission member that rises to a predetermined position on the vertical push seat; the vertical push transmission member is driven on the conveyor belt, and the vertical push transmission member provides power for the vertical movement of the connected heating and cleaning buckle member; the rotating cleaning member moves with the vertical push transmission member, and drives the cleaning liquid in the hardened and formed plastic sheet to rotate and clean; The internal and external pressure balance member is on the rotating cleaning member to adjust the internal and external pressure balance of the vertical sealing transmission member, so as to facilitate the cleaning liquid to enter the molded plastic sheet and be discharged from the molded, hardened and cleaned plastic sheet.

2. The fully automatic thermoforming device according to claim 1 is characterized in that: The heating and cleaning buckle-fitting part comprises a heating buckle-fitting cover, a heater and a spring. The heating buckle-fitting cover is driven to move upward on the vertical sealing transmission part by the connected spring, thereby buckling the plastic sheet on the continuous blister-formed part. The plastic sheet is heated and softened by the heater arranged on the heating buckle-fitting cover, so as to facilitate the blister forming of the continuous blister-formed part.

3. The fully automatic thermoforming device according to claim 2, characterized in that: The heating and cleaning power part includes a liquid inlet conveying part and a liquid outlet conveying part. The liquid inlet conveying part is on the continuous heating conveying part, and conveys the cleaning liquid to the connected heating and cleaning part, so that a part of the cleaning liquid contacts the plastic sheet after the vacuum forming to accelerate the hardening and forming, and the other part of the cleaning liquid drives the rotating cleaning part to rotate; the liquid outlet conveying part is on the continuous heating conveying part, and discharges the cleaning liquid in the connected heating and cleaning part according to a predetermined procedure.

4. The fully automatic thermoforming device according to claim 3 is characterized in that: The continuous blister forming part includes a continuous blister conveying part and a negative pressure blister forming part. The continuous blister conveying part has the same structure as the continuous heating conveying part, and the continuous blister conveying part is located above the continuous heating conveying part on the support frame to drive the connected negative pressure blister forming part and the heating and cleaning part to move accordingly, and to blister form the softened plastic sheet.

5. The fully automatic thermoforming device according to claim 4, characterized in that: The continuous conveying power member includes a cooperative transmission member and a conveying power member. The cooperative transmission member is simultaneously connected to the continuous heating conveying member and the continuous blister conveying member on the support frame. The conveying power member provides power for the connected cooperative transmission member on the support frame.

6. The processing technology of the fully automatic thermoforming device according to claim 5 is characterized in that: The following steps are involved: 1) The plastic sheet is fed by a feed roll at a parallel constant speed and enters between the negative pressure blister forming part and the heating and cleaning part; 2) starting the continuous conveying power element to drive the negative pressure blister forming element and the heating and cleaning element to move at the same speed and in the same direction as the plastic sheet; 3) A predetermined volume of the cleaning liquid is input into the vertical pushing seat to push the vertical sealing transmission member upward to a certain height, so that the vertical sealing transmission member drives the heating buckle cover upward to buckle the plastic sheet onto the port of the negative pressure blister molding member in a sealed manner; 4) after turning on the heater to radiate and soften the plastic sheet, negative pressure adsorption is performed on the negative pressure blister forming part to blister form the softened plastic sheet; 5) continuously filling the cleaning liquid into the vertical push seat to drive the vertical sealing transmission member to rise to a sealing connection with the port of the heating buckle cover, and locking the vertical sealing transmission member in height by the push position locking member; 6) Turning on the rotating cleaning member allows the cleaning liquid in the vertical push seat to enter and fill the plastic sheet after the vacuum forming; 7) continuously injecting the cleaning liquid into the vertical pushing seat, so that the cleaning liquid in the vertical pushing seat flows from bottom to top, so as to drive the rotating cleaning member to rotate, thereby driving the stirring plate of the rotating cleaning member to rotate, stirring the cleaning liquid in the hardened plastic sheet to rotate, thereby improving the cleaning quality and cleaning efficiency of the hardened plastic sheet by the cleaning liquid; 8) After the plastic sheet is cleaned, the cleaning liquid in the vertical push seat and the plastic sheet is discharged; 9) The vertical sealing transmission member is released and reset by the push position locking member.

Images