Heat sealing device for EPP foam box processing and using method

Abstract

The invention discloses a heat sealing device for machining an EPP foam box and a using method, the heat sealing device comprises a machining box and a treatment box, a heat sealing treatment mechanism is arranged in the machining box and the treatment box to achieve machining operation of the foam box, and the heat sealing treatment mechanism comprises a sealing part and a stripping part. According to the heat sealing device for EPP foam box processing and the using method, a heat sealing processing mechanism is arranged, a driving motor is used for driving a rotating plate to rotate, and a concave frame moves to drive an upper abutting block to move towards a lower abutting block till the inclined face of the upper abutting block moves to make contact with the inclined face of the lower abutting block; the upper transverse rod and the lower transverse rod can move relative to each other, the pressing plate is used for pressing and sealing the edge of the connected upper mold plate and lower mold plate, the sealing operation is completed at the contact gap in the heat sealing operation process, the heat sealing efficiency is improved, and the loss of hot air is avoided.

Description

Technical Field

[0001] The present invention relates to the technical field of foam box processing, in particular to a heat sealing device for EPP foam box processing and a use method thereof. Background Art

[0002] Expanded polypropylene (EPP) is a highly crystalline polypropylene composite material with excellent performance. With its unique and superior performance, it has become the fastest growing new environmentally friendly pressure-resistant buffering and thermal insulation material. EPP products have excellent shock absorption performance, high recovery rate after deformation, good heat resistance, chemical resistance, oil resistance and thermal insulation. In addition, its light weight can significantly reduce the weight of items. EPP is a green and environmentally friendly material that can be recycled and reused and will not cause white pollution.

[0003] The reference patent is named: EPP foam body and fabric heat sealing device (patent publication number: CN105856559A, patent publication date: 2016-08-17), which includes an operating frame, an automatic gluing mechanism, a body fixing mechanism, a fabric fixing mechanism, a moving mechanism and an electrical control cabinet; the automatic gluing mechanism is arranged on the upper part of the operating frame; the body fixing mechanism, the fabric fixing mechanism and the moving mechanism are arranged in the middle part of the operating frame, wherein the fabric fixing mechanism is arranged at the front part of the operating frame and can move up and down, the moving mechanism is arranged at the rear part of the operating frame and can move forward and backward, the body fixing mechanism is connected to the moving mechanism and can move forward and backward with the moving mechanism; the electrical control cabinet is arranged at the lower part of the operating frame and controls the actions of the automatic gluing mechanism, the fabric fixing mechanism and the moving mechanism. The use of this device greatly improves production efficiency, ensures the quality stability of parts, and is suitable for batch repeated operations.

[0004] Based on the description in the above-mentioned document, during the heat-sealing operation of the existing EPP foam box, after the contact between the upper and lower templates is completed, the heat generated will slowly dissipate from the gap between the templates, affecting the quality and efficiency of the heat-sealing. In addition, the stability of the contact between the upper and lower templates is poor, and there will be disturbances that will cause influence during the heat-sealing. At the same time, the material is tightly bonded and difficult to remove after the operation is completed. Therefore, the present invention provides a heat-sealing device and a method for use for processing EPP foam boxes. Summary of the Invention

[0005] In response to the deficiencies in the prior art, the present invention provides a heat-sealing device and a method for using EPP foam boxes, which solves the problem that during the heat-sealing operation of the existing EPP foam boxes, after the upper and lower templates are in contact, the heat generated will slowly dissipate from the gap between the templates, affecting the quality and efficiency of the heat-sealing. In addition, the stability of the contact between the upper and lower templates is poor, and there will be disturbances during the heat-sealing, causing an impact. At the same time, when removing and picking up the materials after the operation is completed, there is also the problem that the materials are tightly bonded and are inconvenient to remove.

[0006] To achieve the above objectives, the present invention is implemented through the following technical solutions: A heat sealing device for processing EPP foam boxes, including a processing box and a treatment box, and a heat sealing processing mechanism is provided inside the processing box and the treatment box to realize the processing operation of the foam box, and the heat sealing processing mechanism includes:

[0007] The sealing part includes an upper template and a lower template. A heater is provided inside the processing box and is connected to the upper template through a pipeline to realize the heat sealing operation after the upper and lower templates are combined. The upper template is driven by a pneumatic part to move vertically. The lower template is installed on the top of the processing box. The upper and lower templates are aligned at relative positions. Long strips that can move laterally are provided on all four sides of the lower template. The multiple long strips are telescopically moved by the provided driving parts. The interior of the long strips is provided with a linkage part to realize the relative or opposite movement of the two pressure plates, so that the pressure plates can press and seal the edges after the upper and lower templates are connected.

[0008] The stripping part drives the stripping part below the lower template to move when the upper template moves downward to achieve the sealing of the heat sealing operation, and the stripping part below the lower template pushes the product upward when the upper template moves upward to achieve the stripping operation.

[0009] Preferably, the driving member includes:

[0010] A driving motor is installed at the bottom of the inner cavity of the processing box;

[0011] The rotating plate, one end of the output shaft of the driving motor is fixed to the center of the bottom of the rotating plate through a coupling, and the surface of the rotating plate is controlled by a control member to enable the long strip to move horizontally.

[0012] Preferably, the control element includes:

[0013] The concave frame is fixedly mounted on the bottom of the long strip, and the concave frame extends through the outside of the processing box, and the concave frame and the processing box slide through the sliding member;

[0014] An extension rod, one end of the extension rod is rotatably connected to the bottom of the concave frame, and a control column is installed at the extended end of the extension rod, and control grooves are equidistantly opened on the top of the rotating plate in a circular shape. When the rotating plate rotates, the control groove drives the control column to move, thereby realizing the extension or shortening operation of the distance between the center of the rotating plate and the concave frame.

[0015] Preferably, the linkage part includes:

[0016] The upper crossbar is located inside the long board;

[0017] The lower cross bar is located inside the long strip, and the sides of the upper cross bar and the lower cross bar are respectively fixed to the pressure plate. The upper cross bar and the lower cross bar are connected by a rotating part so that when one side moves, the other side moves in the opposite direction. The vertical movement operation is realized by the moving component at the bottom of the lower cross bar.

[0018] Preferably, the rotating member includes:

[0019] The first rotating rod, the centers of the sides of the upper cross rod and the lower cross rod are rotatably connected to the two first rotating rods through pillars respectively;

[0020] The second rotating rod, the opposite ends of the two first rotating rods are rotated with the two ends of the second rotating rod through the pillars, and a central column is fixed at the center of the surface of the second rotating rod, and the extended end of the central column is rotatably connected to the inner wall of the long plate.

[0021] Preferably, the abutting component includes:

[0022] The upper abutment block has a vertical rod fixed on its top, and the vertical rod extends through the interior of the long strip and is fixed to the bottom of the lower crossbar;

[0023] The lower abutting block has a transverse rod fixedly connected to one side thereof, and when the inclined surface of the upper abutting block moves to contact the inclined surface of the lower abutting block, the upper abutting block moves vertically.

[0024] Preferably, the stripping unit includes:

[0025] The parcel box is fixedly mounted on the bottom of the lower template and is arranged inside the processing box. The parcel box has translation units at the diagonal corners and the center of the bottom of the inner cavity to realize the material removal operation. The extended ends of the transverse rods are fixed to the sides of the parcel box.

[0026] The movable frame is located inside the parcel box, and a return spring is installed between the bottom side of the movable frame and the opposite side of the parcel box. The elasticity of the return spring causes the movable frame to move vertically upward;

[0027] The pressing block is installed below the upper template, and when the upper template moves to contact the lower template, the pressing block extends into the parcel box and pushes the movable frame.

[0028] Preferably, the translation unit comprises:

[0029] The rotating drum is fixedly mounted on the bottom of the inner cavity of the parcel box, and the surface of the rotating drum is provided with spiral grooves and vertical grooves;

[0030] The movable rod passes through the movable frame, and the penetration point of the movable rod and the movable frame is connected through a rotating bearing. The top end of the movable rod extends through the top of the lower template and is fixed with a circular plate. At the same time, a placement groove of an appropriate size is opened at the top of the lower template and below the circular plate. A telescopic part is provided below the surface of the movable rod and moves in the spiral groove and the vertical groove.

[0031] Preferably, the telescopic member includes a connecting column fixedly mounted on the surface of the abutting rod, and a sliding column is slidably connected inside the connecting column, and a telescopic spring is installed between opposite sides of the sliding column and the connecting column.

[0032] The present invention also discloses a method for using a heat sealing device for processing EPP foam boxes, which specifically includes the following steps:

[0033] S1. After placing the foam box material on the lower template, the upper template is driven downward by the pneumatic parts until the upper template and the lower template are in contact;

[0034] S2. During the downward movement of the upper template, the stripping part below the lower template is driven to operate and complete the overall sealing;

[0035] S3. The long strip is driven by the driving member to move horizontally to the edge where the upper template and the lower template are connected, and the two pressing plates are used to seal the edge of the upper template and the lower template using the linkage part.

[0036] Beneficial effects

[0037] The present invention provides a heat sealing device and method for processing EPP foam boxes. Compared with the existing technology, it has the following advantages:

[0038] (1) The heat sealing device and method for using the EPP foam box processing are provided with a heat sealing processing mechanism, which uses a driving motor to drive the rotating plate to rotate, and the movement of the concave frame drives the upper abutting block to move toward the lower abutting block until the inclined surface of the upper abutting block moves to contact the inclined surface of the lower abutting block, thereby realizing relative movement between the upper cross bar and the lower cross bar, and allowing the pressure plate to press and seal the edge after the upper template and the lower template are connected, thereby completing the sealing operation on the contact gap during the heat sealing operation, improving the efficiency of heat sealing and avoiding the loss of heat.

[0039] (2) The heat sealing device and method for using the EPP foam box processing are provided with a linkage part, which drives the long strip to move horizontally through the driving part, thereby effectively avoiding interference with the movement between the upper and lower templates, and utilizing the contact of the abutting components during the movement to achieve sealing contact between the long strip and the edges of the upper and lower templates, while achieving pressure sealing of the edges after the upper and lower templates are connected by the pressure plate, thereby improving the sealing performance and the stability of the operation, achieving faster and more efficient heat sealing operation, and avoiding incomplete bonding at the edges of the product.

[0040] (3) The heat sealing device and method for using the EPP foam box processing is provided with a stripping part, and the elasticity of the return spring is used to make the movable frame move vertically upward, thereby driving the push rod and the circular plate to move upward synchronously to complete the lifting operation of the finished product. Then, while lifting, the movement of the telescopic part in the spiral groove is used to realize the rotation operation of the push rod and the circular plate, and the contact point between the product and the circular plate is rotated relative to complete the separation operation, which is not only convenient for personnel to take the product, but also does not require strong pulling to reduce the chance of damage to the product. BRIEF DESCRIPTION OF THE DRAWINGS

[0041] Figure 1 It is an external three-dimensional structural diagram of the present invention;

[0042] Figure 2 It is an internal three-dimensional structural diagram of the present invention;

[0043] Figure 3 A sectional view of the three-dimensional structure of the upper template of the present invention;

[0044] Figure 4 This is a three-dimensional structural diagram of the lower template of the present invention;

[0045] Figure 5 It is a three-dimensional structural diagram of the sealing portion of the present invention;

[0046] Figure 6 A three-dimensional structural diagram of the control component of the present invention;

[0047] Figure 7 It is a three-dimensional structural diagram of the long strip of the present invention;

[0048] Figure 8 This is a cross-sectional view of the internal three-dimensional structure of the long strip of the present invention;

[0049] Figure 9 It is a three-dimensional structural diagram of the linkage part of the present invention;

[0050] Figure 10 For the present invention Figure 9 A magnified view of the local structure at center A;

[0051] Figure 11This is a cross-sectional view of the internal three-dimensional structure of the parcel box of the present invention;

[0052] Figure 12 This is a three-dimensional diagram of the internal structure of the parcel box of the present invention;

[0053] Figure 13 It is a three-dimensional structure split body of the translation unit of the present invention;

[0054] Figure 14 It is a three-dimensional structural cross-sectional view of the rotating drum of the present invention;

[0055] Figure 15 It is a three-dimensional structural sectional view of the telescopic member of the present invention.

[0056] In the picture:

[0057] 1-Processing box;

[0058] 2-processing box;

[0059] 3-sealing part, 31-upper template, 32-lower template, 33-long strip plate, 34-pressing plate;

[0060] 4-driving member, 41-driving motor, 42-rotating plate, 43-control member, 431-concave frame, 432-extension rod, 433-control column, 434-control slot;

[0061] 5- linkage part, 51- upper cross bar, 52- lower cross bar, 53- rotating member, 531- first rotating rod, 532- second rotating rod, 533- support column, 534- center column, 54- abutting assembly, 541- upper abutting block, 542- vertical rod, 543- lower abutting block, 544- horizontal rod;

[0062] 6-stripping part, 61-parcel box, 62-translational unit, 621-rotating cylinder, 622-spiral groove, 623-vertical groove, 624-moving rod, 625-circular plate, 626-placing groove, 627-telescopic part, 6271-connecting column, 6272-sliding column, 6273-telescopic spring, 63-moving frame, 64-reset spring, 65-pressing block. DETAILED DESCRIPTION

[0063] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0064] See also Figures 1-15 , the present invention provides two technical solutions:

[0065] Example 1: A heat sealing device for processing EPP foam boxes, comprising a processing box 1 and a processing box 2, wherein a heat sealing processing mechanism is provided inside the processing box 1 and the processing box 2 to realize the processing operation of the foam box, and the heat sealing processing mechanism comprises:

[0066] The sealing portion 3 includes an upper template 31 and a lower template 32. A heater is provided inside the processing box 2 and is connected to the upper template 31 through a pipe to realize the heat sealing operation after the upper template 31 and the lower template 32 are combined. The upper template 31 is driven by a pneumatic part to move vertically. The lower template 32 is installed on the top of the processing box 1. The upper template 31 and the lower template 32 are aligned at opposite positions. Long strips 33 for horizontal movement are provided on all four sides of the lower template 32. The multiple long strips 33 are telescopically moved by the provided driving parts 4. The interior of the long strips 33 is provided with a linkage part 5 to realize the relative or opposite movement of the two pressing plates 34, so that the pressing plates 34 can press and seal the edges after the upper template 31 and the lower template 32 are connected.

[0067] The stripping part 6 drives the stripping part 6 below the lower template 32 to move during the downward movement of the upper template 31 to achieve the sealing of the heat sealing operation, and the stripping part 6 below the lower template 32 pushes the product upward during the upward movement of the upper template 31 to achieve the stripping operation.

[0068] The long strips 33 move to contact the sides of the upper template 31 and the lower template 32, and a sealing strip is provided on the side of the long strips 33 between the pressing plates 34. At the same time, the ends of the four corresponding long strips 33 are inclined, and when they are in contact with the long strips 33, the ends of the long strips 33 merge to form a sealed frame to achieve sealing. At the same time, an elastic pad is also installed at the bottom of the pressing plate 34 to achieve a buffering operation when the upper template 31 and the lower template 32 are squeezed;

[0069] The pneumatic parts are achieved through a cylinder installed above the processing box 2, and the cylinder is connected to the external air circuit, and the opening and closing operations are realized by personnel operating the control panel. At the same time, the cylinder is connected to the upper side of the upper template 31 through a piston rod, so as to realize the control and drive the upper template 31 to move vertically and contact the lower template 32, and then the hot air is generated by the heating device located in the processing box 2 and transmitted to the merged upper template 31 and lower template 32 through the hook to realize the subsequent heat sealing operation of the product material. The heating operation of the existing technology is not elaborated in detail in the article, but the heating operation is an existing mature technology and does not affect the implementation of this document.

[0070] By providing a heat sealing processing mechanism, the driving motor 41 is used to drive the rotating plate 42 to rotate, and the movement of the concave frame 431 drives the upper abutting block 541 to move toward the lower abutting block 543 until the inclined surface of the upper abutting block 541 moves to contact the inclined surface of the lower abutting block 543, thereby realizing relative movement between the upper cross bar 51 and the lower cross bar 52, and allowing the pressure plate 34 to press and seal the edge after the upper template 31 and the lower template 32 are connected, thereby completing the sealing operation on the contact gap during the heat sealing operation, improving the efficiency of heat sealing and avoiding the loss of hot air.

[0071] See also Figure 5-Figure 7 In the embodiment of the present invention, the driving member 4 includes:

[0072] The driving motor 41 is installed at the bottom of the inner cavity of the processing box 1;

[0073] The rotating plate 42 and one end of the output shaft of the driving motor 41 are fixed to the center of the bottom of the rotating plate 42 through a coupling, and the surface of the rotating plate 42 enables the long plate 33 to move horizontally through the control member 43.

[0074] The driving motor 41 is a three-phase asynchronous motor, which is electrically connected to an external power source and can be opened and closed by human control.

[0075] See also Figure 7 In the embodiment of the present invention, the control element 43 includes:

[0076] The concave frame 431 is fixedly mounted on the bottom of the long plate 33 and extends through the outside of the processing box 1. The concave frame 431 and the processing box 1 slide through the sliding member;

[0077] An extension rod 432 is rotatably connected at one end to the bottom of the concave frame 431 , and a control column 433 is installed at the extended end of the extension rod 432 . In addition, control grooves 434 are equidistantly provided on the top of the rotating plate 42 in a circular shape. When the rotating plate 42 rotates, the control grooves 434 are used to drive the control columns 433 to move, thereby extending or shortening the distance between the center of the rotating plate 42 and the concave frame 431 .

[0078] The sliding member slides in accordance with the sliding block provided on the surface of the concave frame 431 and the sliding groove passing through the processing box 1 to keep the concave frame 431 moving horizontally.

[0079] See also Figures 8-10 In the embodiment of the present invention, the linkage unit 5 includes:

[0080] The upper crossbar 51 is located inside the long board 33;

[0081] The lower cross bar 52 is located inside the long plate 33, and the side surfaces of the upper cross bar 51 and the lower cross bar 52 are respectively fixed to the pressure plate 34. The upper cross bar 51 and the lower cross bar 52 are connected by a rotating member 53 so that when one side moves, the other side moves in the opposite direction. The lower side of the lower cross bar 52 realizes vertical movement operation through the abutting component 54.

[0082] See also Figure 10 In the embodiment of the present invention, the rotating member 53 includes:

[0083] The first rotating rod 531 is rotatably connected to the two first rotating rods 531 at the center of the side surfaces of the upper cross bar 51 and the lower cross bar 52 through pillars;

[0084] The second rotating rod 532 and the opposite ends of the two first rotating rods 531 are respectively rotated with the two ends of the second rotating rod 532 through the pillars 533, and a central column 534 is fixed at the center of the surface of the second rotating rod 532, and the extended end of the central column 534 is rotatably connected to the inner wall of the long plate 33.

[0085] See also Figure 5 and Figure 8 In the embodiment of the present invention, the abutting component 54 includes:

[0086] The upper abutment block 541 has a vertical rod 542 fixed to its top, and the vertical rod 542 extends through the interior of the long strip 33 and is fixed to the bottom of the lower crossbar 52;

[0087] One side of the lower abutting block 543 is connected and fixed with a transverse rod 544 , and when the inclined surface of the upper abutting block 541 moves to contact the inclined surface of the lower abutting block 543 , the upper abutting block 541 moves vertically.

[0088] By providing a linkage part 5, the long strip 33 is driven by the driving part 4 to move horizontally, thereby effectively avoiding interference with the movement between the upper and lower templates, and utilizing the contact of the abutting component 54 during the movement to achieve sealed contact between the long strip 33 and the edges of the upper and lower templates, while the pressure plate 34 presses and seals the edges after the upper template 31 and the lower template 32 are connected, thereby improving the sealing performance and the stability of the operation, achieving a faster and more efficient heat sealing operation, and avoiding incomplete bonding at the edges of the product.

[0089] See also Figure 11-Figure 15 In the embodiment of the present invention, the stripping portion 6 includes:

[0090] The parcel box 61 is fixedly mounted on the bottom of the lower template 32 and is disposed inside the processing box 1. A translation unit 62 is provided at the diagonal positions of the inner cavity of the parcel box 61 and at the center of the inner cavity bottom to realize the material removal operation. The extended end of the transverse rod 544 is fixed to the side of the parcel box 61.

[0091] The movable frame 63 is located inside the parcel box 61, and a return spring 64 is installed between the bottom side of the movable frame 63 and the opposite side of the parcel box 61. The elasticity of the return spring 64 causes the movable frame 63 to move vertically upward;

[0092] The pressing block 65 is installed below the upper template 31 , and when the upper template 31 moves to contact the lower template 32 , the pressing block 65 extends into the parcel box 61 and pushes against the movable frame 63 .

[0093] See also Figure 13-15 In the embodiment of the present invention, the translation unit 62 includes:

[0094] The rotating cylinder 621 is fixedly mounted on the bottom of the inner cavity of the parcel box 61, and a spiral groove 622 and a vertical groove 623 are formed on the surface of the rotating cylinder 621;

[0095] The push rod 624 passes through the movable frame 63, and the penetration point of the push rod 624 and the movable frame 63 is connected through a rotating bearing. The top end of the push rod 624 extends through the top of the lower template 32 and is fixed with a circular plate 625. At the same time, a placement groove 626 of an appropriate size is provided at the top of the lower template 32 and below the circular plate 625. A telescopic part 627 is provided below the surface of the push rod 624 and moves in the spiral groove 622 and the vertical groove 623.

[0096] Among them, the spiral groove 622 and the vertical groove 623 form a closed loop, and the spiral groove 622 realizes the rotation operation of controlling the movable rod 624, and the vertical groove 623 is a vertical inclined groove, so that the telescopic part 627 will be blocked after moving to the bottom of the vertical groove 623, and will not move upward from the vertical groove 623, but can only rotate and rise through the spiral groove 622.

[0097] By providing a stripping portion 6, the elasticity of the return spring 64 is utilized to enable the movable frame 63 to move vertically upward, thereby driving the push rod 624 and the circular plate 625 to move upward synchronously to complete the lifting operation of the finished product. Then, while lifting, the telescopic member 627 is moved in the spiral groove 622 to realize the rotation operation of the push rod 624 and the circular plate 625, and the contact point between the product and the circular plate 625 is rotated relative to complete the separation operation, which not only makes it convenient for people to pick up the product, but also reduces the chance of damage to the product without pulling hard.

[0098] See also Figure 15 In the embodiment of the present invention, the telescopic member 627 includes a connecting column 6271 fixedly mounted on the surface of the abutting rod 624, and the connecting column 6271 is internally slidably connected to a sliding column 6272, and a telescopic spring 6273 is installed between the opposite sides of the sliding column 6272 and the connecting column 6271.

[0099] Among them, the elasticity of the return spring 64 makes the sliding column 6272 and the connecting column 6271 slide in the spiral groove 622, while driving the rotation operation of the abutting rod 624 and the circular plate 625, and when performing the heat sealing operation, the pressing block 65 of the upper template 31 presses the movable frame 63 to realize the abutting operation, and drives the sliding column 6272 and the connecting column 6271 to move along the vertical groove 623.

[0100] The difference between the second embodiment and the first embodiment is that: in the embodiment of the present invention, the present invention further discloses a method for using a heat sealing device for processing EPP foam boxes, which specifically includes the following steps:

[0101] S1. After placing the foam box material on the lower template 32, the upper template 31 is driven downward by the pneumatic parts until the upper template 31 and the lower template 32 are in contact;

[0102] S2, when the upper template 31 moves downward, the stripping part 6 below the lower template 32 is driven to operate and complete the overall sealing;

[0103] S3, and the long strip 33 is driven by the driving member 4 to move horizontally, and moves to the edge where the upper template 31 and the lower template 32 are connected, and the two pressing plates 34 are used to seal the edge of the upper template 31 and the lower template 32 using the linkage part 5.

[0104] Meanwhile, the contents not described in detail in this specification belong to the prior art known to those skilled in the art.

[0105] During operation, the foam box material to be processed is placed on the lower template 32, and then the upper template 31 is driven vertically downward by the pneumatic parts, so that the upper template 31 and the lower template 32 wrap the foam box material;

[0106] In the process of the upper template 31 moving downward, the pressing block 65 is driven to move and extend to the interior of the parcel box 61 and contact the top side of the movable frame 63, thereby squeezing the return spring 64 to contract. At this time, the sliding column 6272 and the connecting column 6271 move from the vertical groove 623 to the bottom end of the spiral groove 622. In the process of movement, the sliding column 6272 is actuated to realize the contraction of the telescopic spring 6273, and at this time, the circular plate 625 above the actuating rod 624 moves into the placement groove 626 of the lower template 32 and is flush with the top surface of the lower template 32.

[0107] Then, the driving motor 41 drives the rotating plate 42 to rotate, and uses the control slot 434 on the rotating plate 42 to drive the control column 433 on the extension rod 432 to move, which then drives the concave frame 431 to move horizontally synchronously. The movement of the concave frame 431 drives the upper abutting block 541 to move toward the lower abutting block 543 until the inclined surface of the upper abutting block 541 moves into contact with the inclined surface of the lower abutting block 543.

[0108] At this time, the upper abutting block moves upward, and the upper abutting block 541 drives the vertical rod 542 and the lower cross bar 52 to move upward. At this time, the lower cross bar 52 drives the first rotating rod 531 to rotate, and causes the second rotating rod 532 to rotate around the central column 534, and drives the first rotating rod 531 connected to the upper cross bar 51 to rotate, thereby achieving relative movement between the upper cross bar 51 and the lower cross bar 52, and allowing the pressure plate 34 to press and seal the edge of the upper template 31 and the lower template 32 after connection;

[0109] Then, the heat sealing operation is achieved by transferring hot air to the space between the upper template 31 and the lower template 32;

[0110] Finally, when stripping the material, the sliding column 6272 and the connecting column 6271 move in the spiral groove 622 of the rotating cylinder 621 under the elasticity of the reset spring 64, thereby driving the rotation of the moving rod 624 and the circular plate 625, completing the stripping operation at the contact point between the circular plate 625 and the product.

[0111] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus.

[0112] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. A heat sealing device for processing EPP foam boxes, comprising a processing box (1) and a processing box (2), wherein heat sealing processing mechanisms are arranged inside the processing box (1) and the processing box (2) to realize the processing operation of the foam boxes, characterized in that: The heat sealing treatment mechanism includes: The sealing part (3) comprises an upper template (31) and a lower template (32), and a heater is arranged inside the processing box (2) and is connected to the upper template (31) through a pipeline to realize the heat sealing operation after the upper template (31) and the lower template (32) are combined, and the upper template (31) is driven by a pneumatic part to move vertically, and the lower template (32) is installed on the top of the processing box (1), and the upper template (31) and the lower template (32) are aligned at opposite positions, and the four sides of the lower template (32) are provided with long strips (33) that can move laterally, and the plurality of long strips (33) complete the telescopic movement operation through the provided driving parts (4), and the long strips (33) are provided with a linkage part (5) inside to realize the relative or opposite movement of the two pressing plates (34), so that the pressing plates (34) can perform pressure sealing on the edges after the upper template (31) and the lower template (32) are connected; The stripping portion (6) drives the stripping portion (6) below the lower template (32) to move when the upper template (31) moves downward to achieve sealing during the heat sealing operation, while the stripping portion (6) below the lower template (32) pushes the product upward during the upper template (31) moving upward to achieve the stripping operation.

2. The heat sealing device for EPP foam box processing according to claim 1, characterized in that: The driving member (4) comprises: A driving motor (41) is mounted at the bottom of the inner cavity of the processing box (1); The rotating plate (42) has one end of an output shaft of a driving motor (41) fixed to the center of the bottom of the rotating plate (42) through a coupling, and the surface of the rotating plate (42) enables the long strip plate (33) to move horizontally through a control member (43).

3. A heat sealing device for EPP foam box processing according to claim 2, characterized in that: The control member (43) comprises: The concave frame (431) is fixedly mounted on the bottom of the long strip (33), and the concave frame (431) extends through the outside of the processing box (1), and the concave frame (431) and the processing box (1) slide at the penetration point through the sliding member; An extension rod (432), one end of which is rotatably connected to the bottom of the concave frame (431), and a control column (433) is installed at the extended end of the extension rod (432), and control grooves (434) are equidistantly arranged on the top of the rotating plate (42) in a circular shape. When the rotating plate (42) rotates, the control column (433) is driven to move by the control grooves (434), so as to extend or shorten the distance between the center of the rotating plate (42) and the concave frame (431).

4. The heat sealing device for EPP foam box processing according to claim 1, characterized in that: The linkage part (5) comprises: An upper cross bar (51) is located inside the long strip (33); The lower cross bar (52) is located inside the long strip (33), and the side surfaces of the upper cross bar (51) and the lower cross bar (52) are respectively fixed to the pressing plate (34), and the upper cross bar (51) and the lower cross bar (52) are connected by a rotating member (53) so that when one moves, the other moves in the opposite direction, and the lower part of the lower cross bar (52) is moved vertically by a moving assembly (54).

5. A heat sealing device for EPP foam box processing according to claim 4, characterized in that: The rotating member (53) comprises: The first rotating rod (531), the centers of the sides of the upper cross rod (51) and the lower cross rod (52) are rotatably connected to the two first rotating rods (531) through pillars respectively; The second rotating rod (532), the opposite ends of the two first rotating rods (531) are respectively rotated with the two ends of the second rotating rod (532) through the support (533), and a central column (534) is fixed at the center of the surface of the second rotating rod (532), and the extended end of the central column (534) is rotatably connected to the inner wall of the long plate (33).

6. The heat sealing device for EPP foam box processing according to claim 4, characterized in that: The abutment assembly (54) comprises: The upper abutment block (541) has a vertical rod (542) fixedly connected to the top thereof, and the vertical rod (542) extends through the interior of the long strip plate (33) and is fixed to the bottom of the lower cross bar (52); The lower abutting block (543) has a transverse rod (544) fixedly connected to one side thereof, and when the inclined surface of the upper abutting block (541) moves to contact the inclined surface of the lower abutting block (543), the upper abutting block (541) moves vertically.

7. A heat sealing device for EPP foam box processing according to claim 6, characterized in that: The stripping section (6) comprises: The parcel box (61) is fixedly mounted on the bottom of the lower template (32) and arranged inside the processing box (1), and a translation unit (62) is arranged at the diagonal position of the inner cavity of the parcel box (61) and at the center of the inner cavity bottom to realize the material stripping operation, and the extended end of the transverse rod (544) is fixed to the side of the parcel box (61); The movable frame (63) is located inside the parcel box (61), and a return spring (64) is installed between the bottom side of the movable frame (63) and the opposite side of the parcel box (61), and the elasticity of the return spring (64) enables the movable frame (63) to move vertically upward; The pressing block (65) is installed below the upper template (31), and when the upper template (31) moves to contact the lower template (32), the pressing block (65) extends into the interior of the parcel box (61) and pushes against the movable frame (63).

8. The heat sealing device for EPP foam box processing according to claim 7, characterized in that: The translation unit (62) comprises: A rotating cylinder (621) is fixedly mounted on the bottom of the inner cavity of the parcel box (61), and a spiral groove (622) and a vertical groove (623) are formed on the surface of the rotating cylinder (621); A movable rod (624) is provided, the movable rod (624) passes through the movable frame (63), and the penetration point of the movable rod (624) and the movable frame (63) is connected through a rotating bearing. The top end of the movable rod (624) passes through and extends to the top of the lower template (32) and is fixed with a circular plate (625). At the same time, a placement groove (626) of an appropriate size is provided at the top of the lower template (32) and below the circular plate (625). A telescopic member (627) is provided below the surface of the movable rod (624) and is located in the spiral groove (622) and the vertical groove (623) and moves.

9. A heat sealing device for EPP foam box processing according to claim 8, characterized in that: The telescopic member (627) includes a connecting column (6271) fixedly mounted on the surface of the abutting rod (624), and a sliding column (6272) is slidably connected inside the connecting column (6271), and a telescopic spring (6273) is installed between the opposite sides of the sliding column (6272) and the connecting column (6271).

10. A heat-sealing method for processing EPP foam boxes, using a heat-sealing device for processing EPP foam boxes as claimed in any one of claims 1 to 9, characterized in that: The specific steps include: S1, after placing the foam box material on the lower template (32), the upper template (31) is driven downward by the pneumatic part until the upper template (31) and the lower template (32) are in contact; S2, when the upper template (31) moves downward, the stripping part (6) below the lower template (32) is driven to operate and complete the overall sealing; S3, and the long strip plate (33) is driven by the driving member (4) to move horizontally to the edge where the upper template (31) and the lower template (32) are connected, and the two pressing plates (34) are used to seal the edge of the upper template (31) and the lower template (32) by using the linkage part (5).

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