A hot pressing molding machine and hot pressing process for processing acrylic glass for RV windows

Abstract

The present invention belongs to the technical field of acrylic plates, and specifically, is a hot pressing molding machine and hot pressing process for processing acrylic glass for RV windows, including a cooling box, a box door is provided on the left side of the cooling box, a mold is fixedly connected to one side of the right end face of the cooling box, two slide bars are slidably connected to one side of the upper end of the cooling box, a pressing plate is fixedly connected to the lower end of the slide bar, heating plates are provided on both sides of the pressing plate, and an ejection mechanism for demolding the molded acrylic plate is also provided on the mold. The present invention realizes that the acrylic plate ejected by the demolding rod can be transferred to the cooling box through the clamping displacement mechanism, and the multiple acrylic plates placed on the plate are cooled through the flip cooling mechanism, thereby avoiding the situation that the acrylic plate needs to wait for the acrylic plate to be cooled in the mold before the subsequent hot pressing work can be carried out, which is conducive to improving work efficiency.

Description

Technical Field

[0001] The invention belongs to the technical field of acrylic plates, in particular to a hot pressing molding machine and a hot pressing process for processing acrylic glass for a motorhome window. Background Art

[0002] A thermoforming machine is a device that uses heat and pressure to shape materials into the desired shape. In the processing of acrylic glass for RV windows, the acrylic sheet, as a plastic material, needs to be heated and softened by hot pressing, and then molded into the desired window shape under the action of the mold.

[0003] The patent with announcement number CN220482548U discloses a thermoforming equipment for acrylic sheets, including a base, a frame is fixedly provided on the top of the base, a hydraulic rod is fixedly provided on the top of the frame, a pressing plate is fixedly provided on the bottom end of the hydraulic rod, and the bottom of the pressing plate is connected to an upper mold through a buffer assembly, and a cold air delivery pipe blows cold air into the air cavity through an air inlet, and the cold air is finally blown out evenly from the blowing port at the bottom of the air cavity, so that the acrylic sheet hot-pressed in the lower mold can be quickly cooled and shaped, and the support plate on the ejection mechanism is lifted upward by hand, and the acrylic sheet shaped in the inner cavity of the lower mold can be ejected through the ejector rod, and the support plate is released after the acrylic sheet is ejected and taken out, and the lifted support plate can be reset by a reset spring, and the buffer assembly can provide buffer protection for the upper mold, so as to avoid the upper mold from violently colliding with the lower mold to cause damage when the acrylic sheet is hot-pressed.

[0004] However, the above technical solution still has the following deficiencies in practical application:

[0005] Although the acrylic sheet after hot pressing in the lower mold can be air-cooled and shaped, the acrylic sheet is in the lower mold when cooling, and usually, multiple acrylic sheets are hot-pressed in sequence. If the acrylic sheet is cooled in the lower mold, it is necessary to wait for the acrylic sheet to be cooled before the subsequent hot pressing work can be carried out, which affects the work efficiency. In addition, usually, the cooled acrylic sheet needs to be transferred to the next process via a conveyor belt for processing. When workers manually place the cooled acrylic sheet on the conveyor belt for transfer, it not only increases the labor intensity of the workers, but also may cause the acrylic sheet on the conveyor belt to be messy, affecting the subsequent processing efficiency of the acrylic sheet.

[0006] To this end, the present invention provides a hot pressing molding machine and a hot pressing process for processing acrylic glass for a motorhome window. Summary of the invention

[0007] In order to make up for the deficiencies of the prior art and solve at least one technical problem raised in the background technology, the present invention proposes a hot pressing molding machine and a hot pressing process for processing acrylic glass for RV windows.

[0008] The technical solution adopted by the present invention to solve the technical problem is: a hot pressing molding machine for processing acrylic glass for RV windows, comprising a cooling box, a box door is arranged on the left side of the cooling box, a mold is fixedly connected to one side of the right end face of the cooling box, two sliding rods are slidably connected to one side of the upper end of the cooling box, a pressing plate is fixedly connected to the lower end of the sliding rod, heating plates are arranged on both sides of the pressing plate, and an ejection mechanism for demolding the molded acrylic plate is also arranged on the mold;

[0009] The ejection mechanism comprises two demoulding rods slidably connected to the mold, and the lower ends of the demoulding rods are fixedly connected to a connecting block;

[0010] The cooling box is also provided with a flip cooling mechanism for further cooling the formed acrylic plate;

[0011] The flip cooling mechanism includes an air cooler fixedly connected to one side of the upper end surface of the cooling box, the air outlet end of the air cooler is connected to an air outlet pipe, one end of the air outlet pipe is connected to an air outlet hood, the air outlet hood is fixedly connected to the upper end of the cooling box, and the air outlet of the air outlet hood extends to the inside of the cooling box, a fixing ring is fixedly connected to one side of the inner cavity wall of the cooling box, a placing disk is rotatably provided on the inner ring of the fixing ring, a plurality of placing plates are radially distributed and rotatably provided on the placing disk, and clamping plates are slidably connected to both sides of the upper end surface of the placing plate.

[0012] Preferably, one side of the upper end of the cooling box is fixedly connected to a hydraulic cylinder, the piston end of the hydraulic cylinder is fixedly connected to one side of the upper end of the pressure plate, one side of the lower end surface of the mold is fixedly connected to an electric push rod, and the piston end of the electric push rod is fixedly connected to a connecting block.

[0013] Preferably, the mold is also provided with a clamping displacement mechanism for transferring the acrylic plate after demolding to the cooling box, the clamping displacement mechanism includes two sliding rods three slidably connected to one side of the mold, one end of the sliding rod three is fixedly connected to a positioning block, one side of the positioning block is slidably connected to a pressure block, one side of the mold is fixedly connected to an electric push rod two, the piston end of the electric push rod two is fixedly connected to one side of the positioning block, one side of the positioning block is fixedly connected to an electric push rod three, and the piston end of the electric push rod three is fixedly connected to one side of the pressure block.

[0014] Preferably, a gear is rotatably provided on one side of the fixing ring, and the gear is meshed with the tooth block on the outer ring of the placing disk. A motor ten is fixedly connected to one side of the fixing ring, and the output end of the motor ten is fixedly connected to the gear. A spring is fixedly connected to one side of the clamping plate, and the other end of the spring is fixedly connected to the placing plate.

[0015] Preferably, one end of the placement plate is fixedly connected to bevel gear 2, the outer ring of the placement disk is sleeved with and rotatably connected to bevel gear 1, bevel gear 1 and bevel gear 2 are meshed with each other, one side of the placement disk is fixedly connected to motor 2, and the output end of motor 2 is fixedly connected to one end of the placement plate.

[0016] Preferably, a slide bar 2 is fixedly connected to one side of the inner cavity of the cooling box, and the slide bar 2 is slidably connected to a transverse plate, and slide bars 6 are slidably connected to both sides of the transverse plate, and the upper end of the slide bar 6 is fixedly connected to a frame body, and a collecting plate is rotatably provided at both ends of one side of the frame body, and slide bars 5 and slide bars 4 are respectively fixedly connected to both sides of the lower end surface of the collecting plate, and the slide bar 5 is slidably connected to the slide groove plate 2, and the slide groove plate 2 is slidably connected to the clamping bar 2, and the slide bar 4 is slidably connected to the slide groove plate 1, and the slide groove plate 1 is slidably connected to the clamping bar 1, and the clamping bar 1 and the clamping bar 2 can pass through the groove on the collecting plate and move in the groove, and the collecting plate can pass through the through hole in the middle of the placement plate.

[0017] Preferably, a motor 1 is fixedly connected to one side of the right end face of the cooling box, a threaded rod 1 is fixedly connected to the output end of the motor 1, one end of the threaded rod 1 is rotatably set on the cooling box, the threaded rod 1 is threadedly connected to one end of the transverse plate, an electric push rod 4 is fixedly connected to one side of the lower end face of the transverse plate, the piston end of the electric push rod 4 is fixedly connected to one side of the frame, a motor 9 is fixedly connected to one end of the frame, and the output end of the motor 9 is fixedly connected to one side of the collecting plate.

[0018] Preferably, the lower end surface of the collecting plate is respectively fixedly connected to motor four and motor three, the output end of motor four is fixedly connected to threaded rod three, the threaded rod three is threadedly connected to one side of slide plate two, the output end of motor three is fixedly connected to threaded rod two, the threaded rod two is threadedly connected to one end of slide plate one, the lower end of the clamping rod two is threadedly connected to bidirectional threaded rod one, both ends of the bidirectional threaded rod one are rotatably arranged on slide plate two, one end of the slide plate two is fixedly connected to motor five, the output end of motor five is fixedly connected to one end of bidirectional threaded rod one, the lower end of the clamping rod is threadedly connected to bidirectional threaded rod two, both ends of the bidirectional threaded rod two are rotatably arranged on slide plate one, one end of the slide plate one is fixedly connected to motor six, and the output end of motor six is ​​fixedly connected to one end of bidirectional threaded rod two.

[0019] Preferably, the right end face of the clamping rod 2 on the right side is slidably connected with an extension rod, the extension rod is threadedly connected with a threaded rod 4, the lower end of the threaded rod 4 is rotatably set on the clamping rod 2, one side of the right end face of the clamping rod 2 is fixedly connected with a motor 8, the output end of the motor 8 is fixedly connected to one end of the threaded rod 4, one side of the upper end of the extension rod is rotatably provided with a push rod, one side of the upper end of the extension rod is fixedly connected with a motor 7, and the output end of the motor 7 is fixedly connected to one end of the push rod.

[0020] A hot pressing process for acrylic glass of a motorhome window comprises the following specific steps:

[0021] S1, placing the acrylic sheet raw material to be hot-pressed into the mold cavity, heating and softening the acrylic sheet raw material through two heating plates, and when the raw material is softened, driving the pressing plate down, and extruding the acrylic sheet raw material through the pressing plate to form it;

[0022] S2. After the acrylic sheet is formed, the pressing plate is driven away from the mold, and the connecting block is driven to rise, so that the two demoulding rods pass through the mold at the same time, and the formed acrylic sheet is ejected upward;

[0023] S3, after the acrylic sheet is ejected by the demoulding rod, the acrylic sheet is clamped by the pressing block and the positioning block, and the acrylic sheet is driven to move toward the cooling box, and the acrylic sheet is moved between the two clamping plates, and the acrylic sheet is clamped by the two clamping plates, and the placement plate is driven to rotate. Whenever an acrylic sheet is formed, it will be placed on the placement plate, and the cold air can be transported to the inside of the cooling box through the air outlet pipe and the air outlet hood by the cold air blower to cool the acrylic sheet on the placement plate;

[0024] S4. When the acrylic sheet is cooled in the cooling box, multiple placement plates can be driven to rotate simultaneously, so that the acrylic sheet is evenly exposed to wind;

[0025] S5. When the acrylic plate is cooled, the positioning block is driven to move again to move the acrylic plate above the collecting plate, so that multiple acrylic plates can be placed above the collecting plate in an overlapping state. When all the acrylic plates are placed above the collecting plate, the multiple acrylic plates are clamped by clamping rods 1 and 2, and the edges of the multiple acrylic plates are aligned. Then, the collecting plate is driven to rotate 90 degrees, and the box door is opened to move the collecting plate out of the cooling box. By controlling the lifting of the collecting plate, multiple acrylic plates are placed above the conveyor belt. Then, the clamping rods 1 and 2 are driven away from the acrylic plates, so that the acrylic plates can be placed on the conveyor belt in a horizontal arrangement.

[0026] S6. When multiple acrylic plates are arranged above the conveyor belt, first move the clamp rod 2 away from the acrylic plate. When the acrylic plate is placed above the conveyor belt, drive the extension rod to slide along the clamp rod 2 until the push rod passes over the leftmost acrylic plate. At this time, the push rod can be driven to contact the acrylic plate, and the clamp rod 1 loosens the acrylic plate. In addition, a small distance is still maintained between the clamp rod 1 and the acrylic plate. Then drive the extension rod to reset. During the resetting process of the extension rod, the push rod can push the upper edge of the acrylic plate to make the multiple acrylic plates tilt to one side. The clamp rod 1 can limit the tilting range of the acrylic plate, so that the multiple acrylic plates can be placed on the conveyor belt in a uniform direction and in an inclined arrangement.

[0027] The beneficial effects of the present invention are as follows:

[0028] 1. The hot pressing molding machine and hot pressing process for processing acrylic glass for RV windows described in the present invention can, after the acrylic sheet is formed, drive the pressing plate away from the mold, and use the electric push rod to drive the connecting block to rise, so that two demolding rods pass through the mold at the same time, and push the molded acrylic sheet upward, thereby realizing automatic demolding of the acrylic sheet and avoiding the situation that the molded acrylic sheet is embedded in the mold cavity and it is difficult for workers to take it out.

[0029] 2. The hot pressing molding machine and hot pressing process for processing acrylic glass for RV windows described in the present invention can transfer the acrylic sheet ejected by the demolding rod to the cooling box through the clamping displacement mechanism, and cool the multiple acrylic sheets on the placement plate through the flip cooling mechanism, thereby avoiding the situation that the acrylic sheet needs to wait for the acrylic sheet to be cooled down before the subsequent hot pressing work can be carried out due to the acrylic sheet being cooled down in the mold, which is beneficial to improving work efficiency. Moreover, when the acrylic sheet is cooled down inside the cooling box, the multiple placement plates can be driven to rotate at the same time, so that the acrylic sheet is evenly exposed to wind, which is beneficial to improving cooling efficiency. Moreover, when the acrylic sheet is cooled down, the acrylic sheet can be placed on the conveyor belt in a horizontal arrangement, and can be transported to the next process along the conveyor belt, thereby eliminating the need for workers to place the acrylic sheet on the conveyor belt. The process reduces the labor intensity of workers, and because the acrylic sheets are relatively neat, it also avoids the situation that workers manually place the acrylic sheets on the conveyor belt, which affects the subsequent processing efficiency due to the messy acrylic sheets. Moreover, when multiple arranged acrylic sheets are above the conveyor belt, the multiple acrylic sheets can be tilted to one side and placed on the conveyor belt in an inclined arrangement state, so that the multiple acrylic sheets have a unified direction, avoiding the situation that after multiple upright acrylic sheets are tilted, the acrylic sheets are still messy due to inconsistent tilting directions. At the same time, the multiple acrylic sheets in an inclined arrangement state partially overlap. Compared with placing the acrylic sheets flat on the conveyor belt one by one, this arrangement method reduces the occupancy of the conveyor belt space, which is beneficial to increasing the placement quantity of acrylic sheets and the conveying efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] The present invention will be further described below in conjunction with the accompanying drawings.

[0031] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention;

[0032] Figure 2 It is a schematic diagram of the three-dimensional structure of a partial section of a cooling box;

[0033] Figure 3 It is a schematic diagram of the three-dimensional structure where the plate is placed;

[0034] Figure 4 yes Figure 3A partial enlarged view of the middle part;

[0035] Figure 5 It is a schematic diagram of the three-dimensional structure of the mold;

[0036] Figure 6 It is a schematic diagram of the three-dimensional structure at the positioning block;

[0037] Figure 7 It is a schematic diagram of the three-dimensional structure of the fixed ring;

[0038] Figure 8 It is a schematic diagram of the three-dimensional structure where the plate is placed;

[0039] Fig. 9 It is a schematic diagram of the three-dimensional structure of the frame;

[0040] Fig.10 It is a schematic diagram of the three-dimensional structure at the aggregate plate;

[0041] Fig.11 It is a schematic diagram of the three-dimensional structure at another angle of view at the aggregate plate;

[0042] Fig.12 It is a schematic diagram of the three-dimensional structure of the clamp rod at two locations;

[0043] Fig.13 yes Fig.12 A partial enlarged view of point B in the middle;

[0044] Fig.14 yes Fig.12 A partial enlarged view of point C in the middle.

[0045] In the figure: 1. cooling box; 2. mold; 3. hydraulic cylinder; 4. slide bar 1; 5. cooling fan; 6. air outlet pipe; 7. air outlet hood; 8. pressing plate; 9. box door; 10. heating plate; 11. connecting block; 12. motor 1; 13. demoulding rod; 14. electric push rod 1; 15. threaded rod 1; 16. placing plate; 17. placing plate; 18. collecting plate; 19. fixing ring; 20. slide bar 2; 21. bevel gear 1; 22. bevel gear 2; 23. clamping plate; 24. electric push rod 2; 25. slide bar 3; 26. positioning block; 27. pressing block; 28. electric push rod 3; 29. ​​motor 2 ; 30. Motor three; 31. Threaded rod two; 32. Slide rod four; 33. Slide plate one; 34. Motor four; 35. Threaded rod three; 36. Slide rod five; 37. Slide plate two; 38. Clamp rod one; 39. Clamp rod two; 40. Motor five; 41. Two-way threaded rod one; 42. Motor six; 43. Two-way threaded rod two; 44. Extension rod; 45. Motor seven; 46. Push rod; 47. Motor eight; 48. Threaded rod four; 49. Motor nine; 50. Frame; 51. Electric push rod four; 52. Slide rod six; 53. Gear; 54. Spring; 55. Motor ten; 56. Transverse plate. DETAILED DESCRIPTION

[0046] The technical solution of the present invention will be described clearly and completely below 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 creative work are within the scope of protection of the present invention.

[0047] Please refer to Figure 1-Figure 14 The present invention provides a technical solution: a hot pressing molding machine for processing acrylic glass for RV windows, comprising a cooling box 1, a box door 9 is arranged on the left side of the cooling box 1, a mold 2 is fixedly connected to one side of the right end face of the cooling box 1, two slide bars 4 are slidably connected to one side of the upper end of the cooling box 1, a pressing plate 8 is fixedly connected to the lower end of the slide bar 4, heating plates 10 are arranged on both sides of the pressing plate 8, and an ejection mechanism for demolding the molded acrylic plate is also arranged on the mold 2;

[0048] The ejection mechanism includes two demoulding rods 13 slidably connected to the mold 2, and the lower ends of the demoulding rods 13 are fixedly connected to the connecting blocks 11;

[0049] The cooling box 1 is also provided with a flip cooling mechanism for further cooling the molded acrylic plate;

[0050] The flip cooling mechanism includes an air cooler 5 fixedly connected to one side of the upper end surface of the cooling box 1, the air outlet end of the air cooler 5 is connected to an air outlet pipe 6, one end of the air outlet pipe 6 is connected to an air outlet hood 7, the air outlet hood 7 is fixedly connected to the upper end of the cooling box 1, and the air outlet of the air outlet hood 7 extends to the inside of the cooling box 1, a fixing ring 19 is fixedly connected to one side of the inner cavity wall of the cooling box 1, a placing disk 16 is rotatably provided on the inner ring of the fixing ring 19, a plurality of placing plates 17 are radially distributed and rotatably provided on the placing disk 16, and clamping plates 23 are slidably connected to both sides of the upper end surface of the placing plate 17.

[0051] In this embodiment, Figure 2 and Figure 5 As shown, one side of the upper end of the cooling box 1 is fixedly connected to the hydraulic cylinder 3, the piston end of the hydraulic cylinder 3 is fixedly connected to one side of the upper end of the pressure plate 8, one side of the lower end surface of the mold 2 is fixedly connected to an electric push rod 14, and the piston end of the electric push rod 14 is fixedly connected to the connecting block 11.

[0052] Specifically, the raw material of the acrylic sheet to be hot-pressed is placed in the mold cavity of the mold 2, and the raw material of the acrylic sheet is heated and softened by two heating plates 10. When the raw material is softened, the hydraulic cylinder 3 is used to drive the pressing plate 8 to descend, and the pressing plate 8 is used to extrude the raw material of the acrylic sheet to form it. This forming process is a prior art and will not be described in detail. After the acrylic sheet is formed, the pressing plate 8 can be driven away from the mold 2, and the connecting block 11 can be driven up by the electric push rod 14, so that the two demolding rods 13 pass through the mold 2 at the same time, and the formed acrylic sheet is pushed upward, thereby realizing automatic demolding of the acrylic sheet and avoiding the situation that the formed acrylic sheet is embedded in the mold cavity and it is difficult for workers to take it out.

[0053] In this embodiment, Figure 1-Figure 14 As shown, the mold 2 is also provided with a clamping displacement mechanism for transferring the demolded acrylic plate to the cooling box 1, and the clamping displacement mechanism includes two sliding rods 3 25 slidably connected to one side of the mold 2, one end of the sliding rod 3 25 is fixedly connected to a positioning block 26, one side of the positioning block 26 is slidably connected to a pressing block 27, one side of the mold 2 is fixedly connected to an electric push rod 24, the piston end of the electric push rod 24 is fixedly connected to one side of the positioning block 26, one side of the positioning block 26 is fixedly connected to an electric push rod 3 28, and the piston end of the electric push rod 3 28 is fixedly connected to one side of the pressing block 27.

[0054] A gear 53 is rotatably provided on one side of the fixing ring 19, and the gear 53 meshes with the tooth block on the outer ring of the placement plate 16. A motor 55 is fixedly connected to one side of the fixing ring 19, and the output end of the motor 55 is fixedly connected to the gear 53. A spring 54 is fixedly connected to one side of the clamping plate 23, and the other end of the spring 54 is fixedly connected to the placement plate 17.

[0055] One end of the placement plate 17 is fixedly connected to a bevel gear 22, and the outer ring of the placement disk 16 is sleeved with and rotatably connected to a bevel gear 21, and the bevel gear 1 21 and the bevel gear 2 22 are meshed with each other. One side of the placement disk 16 is fixedly connected to a motor 29, and the output end of the motor 29 is fixedly connected to one end of the placement plate 17.

[0056] A slide bar 20 is fixedly connected to one side of the inner cavity of the cooling box 1, and the slide bar 20 is slidably connected to a transverse plate 56. Slide bars 6 52 are slidably connected to both sides of the transverse plate 56. The upper end of the slide bar 6 52 is fixedly connected to the frame 50, and a collecting plate 18 is rotatably provided at both ends of one side of the frame 50. The lower end surface of the collecting plate 18 is respectively fixedly connected to a slide bar 5 36 and a slide bar 4 32. The slide bar 5 36 is slidably connected to a slide plate 2 37. The slide plate 2 37 is slidably connected to a clamping bar 2 39 on both sides. The slide bar 4 32 is slidably connected to a slide plate 1 33. The slide plate 1 33 is slidably connected to a clamping bar 1 38 on both sides. The clamping bar 1 38 and the clamping bar 2 39 can pass through the groove on the collecting plate 18 and move in the groove. The collecting plate 18 can pass through the through hole in the middle of the placement tray 16.

[0057] A motor 12 is fixedly connected to one side of the right end face of the cooling box 1, and a threaded rod 15 is fixedly connected to the output end of the motor 12. One end of the threaded rod 15 is rotatably set on the cooling box 1, and the threaded rod 15 is threadedly connected to one end of the transverse plate 56. An electric push rod 4 51 is fixedly connected to one side of the lower end face of the transverse plate 56, and the piston end of the electric push rod 4 51 is fixedly connected to one side of the frame 50. A motor 9 49 is fixedly connected to one end of the frame 50, and the output end of the motor 9 49 is fixedly connected to one side of the collecting plate 18.

[0058] The lower end surfaces of the collecting plate 18 are respectively fixedly connected with motor four 34 and motor three 30, the output end of motor four 34 is fixedly connected with threaded rod three 35, threaded rod three 35 is threadedly connected to one side of slide plate two 37, the output end of motor three 30 is fixedly connected with threaded rod two 31, threaded rod two 31 is threadedly connected to one end of slide plate one 33, the lower end of clamping rod two 39 is threadedly connected with bidirectional threaded rod one 41, both ends of bidirectional threaded rod one 41 are rotatably set on slide plate two 37, one end of slide plate two 37 is fixedly connected with motor five 40, the output end of motor five 40 is fixedly connected to one end of bidirectional threaded rod one 41, the lower end of clamping rod one 38 is threadedly connected with bidirectional threaded rod two 43, both ends of bidirectional threaded rod two 43 are rotatably set on slide plate one 33, one end of slide plate one 33 is fixedly connected with motor six 42, and the output end of motor six 42 is fixedly connected to one end of bidirectional threaded rod two 43.

[0059] The right end face of the right side clamp rod 2 39 is slidably connected with an extension rod 44, and the extension rod 44 is threadedly connected with a threaded rod 48, and the lower end of the threaded rod 48 is rotatably set on the clamp rod 2 39, and one side of the right end face of the clamp rod 2 39 is fixedly connected with a motor 8 47, and the output end of the motor 8 47 is fixedly connected to one end of the threaded rod 48, and one side of the upper end of the extension rod 44 is rotatably set with a push rod 46, and one side of the upper end of the extension rod 44 is fixedly connected with a motor 7 45, and the output end of the motor 7 45 is fixedly connected to one end of the push rod 46.

[0060] Specifically, when the existing acrylic sheet thermoforming equipment is in use, although the acrylic sheet that has been hot-pressed and formed in the lower mold can be quickly air-cooled and formed, the acrylic sheet is in the lower mold when cooling, and usually, multiple acrylic sheets are hot-pressed and formed in sequence. If the acrylic sheet is cooled in the lower mold, it is necessary to wait for the acrylic sheet to be cooled before the subsequent hot pressing work can be carried out, which has a great impact on the work efficiency. In addition, usually, the cooled acrylic sheet needs to be transported to the next process via a conveyor belt for processing. When workers manually place the cooled acrylic sheet on the conveyor belt for transportation, it not only increases the labor intensity of the workers, but also may cause the acrylic sheet on the conveyor belt to be messy, affecting the subsequent processing efficiency of the acrylic sheet.

[0061] Therefore, in order to solve the above problems, when the present embodiment is used, after the acrylic sheet is hot-pressed, although the acrylic sheet has not yet been cooled, the acrylic sheet will gradually harden during the pressing process. Therefore, the acrylic sheet at this time already has a certain hardness, but still needs further cooling to make the molecular chain structure more stable. Therefore, after the acrylic sheet is ejected by the demolding rod 13, the electric push rod 24 is used to drive the positioning block 26 to approach the acrylic sheet until the edge of the acrylic sheet is between the pressing block 27 and the positioning block 26, and then the electric push rod 3 28 is used to drive the pressing block 27 to descend to clamp the acrylic sheet, and then the electric push rod 3 28 is used again to drive the acrylic sheet to move toward the cooling box 1. Since an opening is provided on the right side of the upper end of the cooling box 1, the acrylic sheet can enter through the opening. In the cooling box 1, the acrylic sheet is moved between the two clamping plates 23, the edge of the acrylic sheet squeezes the clamping plates 23, the spring 54 is deformed, the acrylic sheet is clamped by the two clamping plates 23, and then the positioning block 26 is reset, so that the transfer of the acrylic sheet can be realized, and then the above operation is repeated, and the motor 55 drives the gear 53 to rotate to rotate the placement plate 16. Whenever an acrylic sheet is formed, it will be placed on the placement plate 17, and the cold air can be transported to the inside of the cooling box 1 through the air outlet pipe 6 and the air outlet hood 7 by the cold air blower 5 to cool the acrylic sheet on the placement plate 17, thereby avoiding the situation that the acrylic sheet needs to wait for the acrylic sheet to be cooled in the mold 2 before the subsequent hot pressing work can be carried out, which is conducive to improving work efficiency;

[0062] Furthermore, when the acrylic plate is cooled inside the cooling box 1, the placing plate 17 on one side can be driven to rotate by starting the second motor 29, so that the second bevel gear 22 drives the first bevel gear 21 to rotate, and multiple placing plates 17 rotate at the same time, so that the acrylic plate is evenly exposed to wind, which is beneficial to improving the cooling efficiency;

[0063] When the acrylic plate is cooled, since the upper end surface of the collecting plate 18 in the initial state is flush with the upper end surface of the placing plate 16, the placing plate 16 is driven to rotate intermittently, and each time the placing plate 16 stops, the positioning block 26 is aligned with an acrylic plate, and the positioning block 26 can be driven to move again to push the acrylic plate between the two clamping plates 23 to move it above the collecting plate 18. Repeat the above operation. Every time an acrylic plate moves above the collecting plate 18, the electric push rod 4 51 will drive the collecting plate 18 to drop a distance of the thickness of the acrylic plate. Multiple acrylic plates are placed on the collecting plate 18 in an overlapping state. When all the acrylic plates are placed on the collecting plate 18, the motor 4 34 drives the threaded rod 3 35 to rotate, and the motor 30 drives the threaded rod 2 31 to rotate, so that the slide plate 2 37 and the slide plate 1 33 rise, and the clamp rod 1 38 and the clamp rod 2 39 pass through the groove on the collecting plate 18 until the clamp rod 1 38 and the clamp rod 2 39 are flush with the upper end surface of the uppermost acrylic plate, and then the motor 5 40 drives the bidirectional threaded rod 1 41 to rotate, and the motor 6 42 drives the bidirectional threaded rod 2 43 to rotate, so that the two slide plates ..., until the clamp rod 1 38 and the clamp rod 2 39 are flush with the upper end surface of the uppermost acrylic plate, and then the motor 5 The clamping rods 2 39 are close to each other, and the two clamping rods 1 38 are close to each other to clamp the multiple acrylic plates, and the edges of the multiple acrylic plates are aligned, and then the motor 9 49 is used to drive the collecting plate 18 to rotate 90 degrees, and the box door 9 is opened. The motor 12 drives the threaded rod 15 to rotate, so that the transverse plate 56 moves from right to left in the cooling box 1, and the cooling box 1 is placed in a suitable position. When the collecting plate 18 is moved out of the cooling box 1, it can be just above the conveyor belt. By controlling the lifting of the collecting plate 18, multiple acrylic plates are placed above the conveyor belt, and then the clamping rods 1 38 and The second clamping rod 39 is away from the acrylic sheet, so that the acrylic sheet can be placed on the conveyor belt in a horizontal arrangement, and can be transported to the next process along the conveyor belt, thereby eliminating the process of workers placing the acrylic sheet on the conveyor belt, reducing the labor intensity of the workers, and because the acrylic sheet is relatively neat, it also avoids the situation where workers manually place the acrylic sheet on the conveyor belt, which affects the efficiency of subsequent processing due to the messy acrylic sheet, and compared with the vertical stacking method, the acrylic sheet arranged horizontally is not easy to collapse, which is conducive to improving the neatness of the acrylic sheet during transportation;

[0064] Since the acrylic sheets are arranged horizontally and in an upright position, the acrylic sheets may fall over, and the falling directions of the multiple acrylic sheets may not be uniform, which will cause the acrylic sheets to remain messy and affect subsequent processing. If the acrylic sheets are placed flat on the conveyor belt one by one, more space will be occupied by the conveyor belt. Therefore, in order to avoid this situation, when the multiple acrylic sheets are arranged above the conveyor belt, the clamping rod 2 39 is first moved away from the acrylic sheet. After the acrylic sheet is placed above the conveyor belt, the motor 8 47 is used to drive the threaded rod 48 to rotate, so that the extension rod 44 slides along the clamping rod 2 39 until the push rod 46 passes over the leftmost acrylic sheet. At this time, the motor 7 45 can be used to drive the push rod 46 to rotate so that the push rod 46 can contact the acrylic sheet. At this time, the clamping rod 1 38 is driven to move the acrylic sheet The acrylic plate is loosened, and a small distance is still maintained between the clamp rod 38 and the acrylic plate, and then the extension rod 44 is driven to reset. During the reset process of the extension rod 44, the push rod 46 can push the upper edge of the acrylic plate to make multiple acrylic plates tilt to one side. The clamp rod 38 can also limit the tilting range of the acrylic plate, so that multiple acrylic plates can be placed on the conveyor belt in a uniform direction and in an inclined arrangement state, so that the multiple acrylic plates have a uniform direction, avoiding the situation that after multiple upright acrylic plates are tilted, the acrylic plates are still messy due to inconsistent tilting directions. At the same time, the multiple acrylic plates in an inclined arrangement state partially overlap. Compared with placing the acrylic plates flat on the conveyor belt one by one, this arrangement method reduces the occupancy of the conveyor belt space, which is beneficial to increasing the number of acrylic plates placed and the conveying efficiency.

[0065] A hot pressing process for acrylic glass of a motorhome window comprises the following specific steps:

[0066] S1, placing the acrylic sheet raw material to be hot-pressed into the mold cavity of the mold 2, heating and softening the acrylic sheet raw material through two heating plates 10, and then driving the pressing plate 8 down after the raw material is softened, and extruding the acrylic sheet raw material through the pressing plate 8 to form it;

[0067] S2, when the acrylic sheet is formed, the pressing plate 8 is driven away from the mold 2, and the connecting block 11 is driven to rise, so that the two demoulding rods 13 pass through the mold 2 at the same time, and the formed acrylic sheet is ejected upward;

[0068] S3, after the acrylic sheet is ejected by the demoulding rod 13, the pressing block 27 and the positioning block 26 are used to clamp the acrylic sheet, and the acrylic sheet is driven to move toward the cooling box 1, and the acrylic sheet is moved between the two clamping plates 23, and the acrylic sheet is clamped by the two clamping plates 23, and the placement plate 16 is driven to rotate. Whenever an acrylic sheet is formed, it will be placed on the placement plate 17, and the cold air can be transported to the inside of the cooling box 1 through the air outlet pipe 6 and the air outlet hood 7 by the cold air blower 5, so as to cool the acrylic sheet on the placement plate 17;

[0069] S4. When the acrylic sheet is cooled in the cooling box 1, the plurality of placement plates 17 can be driven to rotate simultaneously, so that the acrylic sheet is evenly exposed to wind;

[0070] S5. When the acrylic plate is cooled, the positioning block 26 is driven to move again to move the acrylic plate above the collecting plate 18, so that multiple acrylic plates can be placed above the collecting plate 18 in an overlapping state. When all acrylic plates are placed above the collecting plate 18, the multiple acrylic plates are clamped by the clamp rod 1 38 and the clamp rod 2 39, and the edges of the multiple acrylic plates are aligned. Then, the collecting plate 18 is driven to rotate 90 degrees, and the box door 9 is opened to move the collecting plate 18 out of the cooling box 1. By controlling the lifting of the collecting plate 18, multiple acrylic plates are placed above the conveyor belt. Then, the clamp rod 1 38 and the clamp rod 2 39 are driven away from the acrylic plate, so that the acrylic plates can be placed on the conveyor belt in a horizontal arrangement.

[0071] S6. When multiple acrylic plates are arranged above the conveyor belt, first move the clamp rod 2 39 away from the acrylic plate. When the acrylic plate is placed above the conveyor belt, drive the extension rod 44 to slide along the clamp rod 2 39 until the push rod 46 passes over the leftmost acrylic plate. At this time, the push rod 46 can be driven to contact the acrylic plate, and the clamp rod 1 38 loosens the acrylic plate, and a small distance is still maintained between the clamp rod 1 38 and the acrylic plate. Then drive the extension rod 44 to reset. During the reset of the extension rod 44, the push rod 46 can push the upper edge of the acrylic plate to make the multiple acrylic plates tilt to one side. The clamp rod 1 38 can limit the tilting range of the acrylic plate, so that the multiple acrylic plates can be placed on the conveyor belt in a uniform direction and in an inclined arrangement.

[0072] Working principle: Place the raw material of the acrylic sheet to be hot-pressed into the mold cavity of the mold 2, heat and soften the raw material of the acrylic sheet through two heating plates 10, and when the raw material is softened, drive the pressing plate 8 down, and extrude the raw material of the acrylic sheet through the pressing plate 8 to form it; when the acrylic sheet is formed, drive the pressing plate 8 away from the mold 2, and drive the connecting block 11 up, so that the two demoulding rods 13 pass through the mold 2 at the same time, and push the molded acrylic sheet upward; when the acrylic sheet is ejected by the demoulding rod 13, use the pressing block 27 and the positioning block 26 to clamp the acrylic sheet, drive the acrylic sheet to move toward the cooling box 1, and move the acrylic sheet The acrylic sheet is clamped between the two clamping plates 23, and the placement plate 16 is driven to rotate. Whenever an acrylic sheet is formed, it will be placed on the placement plate 17, and the cold air can be transported to the inside of the cooling box 1 through the air outlet pipe 6 and the air outlet hood 7 by the cold air blower 5 to cool the acrylic sheet on the placement plate 17; and when the acrylic sheet is cooled inside the cooling box 1, multiple placement plates 17 can be driven to rotate at the same time, so that the acrylic sheet is evenly exposed to the wind; when the acrylic sheet is cooled, the positioning block 26 is driven to move again, so that the acrylic sheet is moved to the top of the collecting plate 18, so that multiple acrylic sheets can be overlapped. The acrylic sheets are placed on the collecting plate 18 in a horizontal state. When all the acrylic sheets are placed on the collecting plate 18, the multiple acrylic sheets are clamped by the clamp rod 1 38 and the clamp rod 2 39, and the edges of the multiple acrylic sheets are aligned. Then the collecting plate 18 is driven to rotate 90 degrees, and the box door 9 is opened to move the collecting plate 18 out of the cooling box 1. By controlling the lifting of the collecting plate 18, multiple acrylic sheets are placed on the conveyor belt. Then, the clamp rod 1 38 and the clamp rod 2 39 are driven away from the acrylic sheets, so that the acrylic sheets can be placed on the conveyor belt in a horizontal arrangement. When multiple arranged acrylic sheets are above the conveyor belt, the clamp rod 2 39 is first moved away from the acrylic sheets. When the acrylic sheets are After the acrylic sheet is placed above the conveyor belt, the extension rod 44 is driven to slide along the clamp rod 39 until the push rod 46 passes over the leftmost acrylic sheet. At this time, the push rod 46 can be driven to contact the acrylic sheet, and the clamp rod 38 loosens the acrylic sheet, and a small distance is still maintained between the clamp rod 38 and the acrylic sheet. Then the extension rod 44 is driven to reset. During the reset of the extension rod 44, the push rod 46 can push the upper edge of the acrylic sheet to make multiple acrylic sheets tilt to one side, and the clamp rod 38 can limit the tilting range of the acrylic sheet, so that multiple acrylic sheets can be placed on the conveyor belt in a uniform direction and in an inclined arrangement.

[0073] The above shows and describes the basic principles, main features and advantages of the present invention. It should be understood by those skilled in the art that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A hot pressing machine for processing acrylic glass for RV windows, comprising a cooling box (1), characterized in that: A box door (9) is provided on the left side of the cooling box (1); a mold (2) is fixedly connected to one side of the right end face of the cooling box (1); two slide bars (4) are slidably connected to one side of the upper end of the cooling box (1); a pressing plate (8) is fixedly connected to the lower end of the slide bar (4); heating plates (10) are provided on both sides of the pressing plate (8); and an ejection mechanism for demoulding the molded acrylic plate is also provided on the mold (2); The ejection mechanism comprises two demoulding rods (13) slidably connected to the mold (2), and the lower ends of the demoulding rods (13) are fixedly connected to a connecting block (11); The cooling box (1) is also provided with a flip cooling mechanism for further cooling the formed acrylic plate; The flip cooling mechanism comprises a cooling fan (5) fixedly connected to one side of the upper end surface of the cooling box (1); the air outlet end of the cooling fan (5) is connected to an air outlet pipe (6); one end of the air outlet pipe (6) is connected to an air outlet hood (7); the air outlet hood (7) is fixedly connected to the upper end of the cooling box (1), and the air outlet of the air outlet hood (7) extends into the interior of the cooling box (1); a fixing ring (19) is fixedly connected to one side of the inner cavity wall of the cooling box (1); a placement disk (16) is rotatably provided on the inner ring of the fixing ring (19); a plurality of placement plates (17) are radially distributed and rotatably provided on the placement disk (16); clamping plates (23) are slidably connected to both sides of the upper end surface of the placement plate (17); a sliding rod 2 (20) is fixedly connected to one side of the inner cavity of the cooling box (1); and the sliding rod 2 (20) is slidably connected to a transverse plate (56). The two sides of the transverse plate (56) are slidably connected with slide bars six (52), the upper ends of the slide bars six (52) are fixedly connected with the frame body (50), and the two ends of one side of the frame body (50) are rotatably provided with a collection plate (18), and the two sides of the lower end surface of the collection plate (18) are respectively fixedly connected with slide bars five (36) and slide bars four (32), the slide bars five (36) are slidably connected with the slide groove plate two (37), and the two sides of the slide groove plate two (37) are slidably connected with clamping bars two (39), the slide bars four (32) are slidably connected with the slide groove plate one (33), and the two sides of the slide groove plate one (33) are slidably connected with clamping bars one (38), the clamping bars one (38) and the clamping bars two (39) can pass through the groove on the collection plate (18) and move in the groove, and the collection plate (18) can pass through the through hole in the middle of the placement plate (16).

2. The hot pressing molding machine for processing acrylic glass for RV windows according to claim 1, characterized in that: One side of the upper end of the cooling box (1) is fixedly connected to a hydraulic cylinder (3), and the piston end of the hydraulic cylinder (3) is fixedly connected to one side of the upper end of the pressure plate (8). One side of the lower end surface of the mold (2) is fixedly connected to an electric push rod 1 (14), and the piston end of the electric push rod 1 (14) is fixedly connected to a connecting block (11).

3. The hot pressing machine for processing acrylic glass for RV windows according to claim 2, characterized in that: The mold (2) is also provided with a clamping displacement mechanism for transferring the acrylic plate after demoulding to the cooling box (1), and the clamping displacement mechanism includes two sliding rods (25) slidably connected to one side of the mold (2), one end of the sliding rod (25) is fixedly connected to a positioning block (26), and one side of the positioning block (26) is slidably connected to a pressure block (27), one side of the mold (2) is fixedly connected to an electric push rod (24), the piston end of the electric push rod (24) is fixedly connected to one side of the positioning block (26), the one side of the positioning block (26) is fixedly connected to an electric push rod (28), and the piston end of the electric push rod (28) is fixedly connected to one side of the pressure block (27).

4. The hot pressing molding machine for processing acrylic glass for RV windows according to claim 3, characterized in that: A gear (53) is rotatably provided on one side of the fixing ring (19), and the gear (53) meshes with a tooth block on the outer ring of the placement plate (16). A motor ten (55) is fixedly connected to one side of the fixing ring (19), and an output end of the motor ten (55) is fixedly connected to the gear (53). A spring (54) is fixedly connected to one side of the clamping plate (23), and the other end of the spring (54) is fixedly connected to the placement plate (17).

5. The hot pressing molding machine for processing acrylic glass for RV windows according to claim 4, characterized in that: One end of the placement plate (17) is fixedly connected to a bevel gear 2 (22); the outer ring of the placement plate (16) is sleeved with and rotatably connected to a bevel gear 1 (21); the bevel gear 1 (21) and the bevel gear 2 (22) are meshed with each other; one side of the placement plate (16) is fixedly connected to a motor 2 (29); an output end of the motor 2 (29) is fixedly connected to one end of the placement plate (17).

6. The hot pressing molding machine for processing acrylic glass for RV windows according to claim 5, characterized in that: A motor 1 (12) is fixedly connected to one side of the right end face of the cooling box (1), and a threaded rod 1 (15) is fixedly connected to the output end of the motor 1 (12). One end of the threaded rod 1 (15) is rotatably arranged on the cooling box (1), and the threaded rod 1 (15) is threadedly connected to one end of the transverse plate (56). An electric push rod 4 (51) is fixedly connected to one side of the lower end face of the transverse plate (56), and a piston end of the electric push rod 4 (51) is fixedly connected to one side of the frame (50). A motor 9 (49) is fixedly connected to one end of the frame (50), and an output end of the motor 9 (49) is fixedly connected to one side of the collecting plate (18).

7. The hot pressing molding machine for processing acrylic glass for RV windows according to claim 1, characterized in that: The lower end surface of the collecting plate (18) is fixedly connected to a motor 4 (34) and a motor 3 (30), respectively; the output end of the motor 4 (34) is fixedly connected to a threaded rod 3 (35), the threaded rod 3 (35) is threadedly connected to one side of the slide plate 2 (37); the output end of the motor 3 (30) is fixedly connected to a threaded rod 2 (31), the threaded rod 2 (31) is threadedly connected to one end of the slide plate 1 (33); the lower end of the clamping rod 2 (39) is threadedly connected to a bidirectional threaded rod 1 (41), both ends of the bidirectional threaded rod 1 (41) are The second chute plate (37) is rotatably arranged, one end of the second chute plate (37) is fixedly connected to a motor five (40), the output end of the motor five (40) is fixedly connected to one end of a bidirectional threaded rod one (41), the lower end of the clamping rod one (38) is threadedly connected to a bidirectional threaded rod two (43), both ends of the bidirectional threaded rod two (43) are rotatably arranged on the first chute plate (33), one end of the first chute plate (33) is fixedly connected to a motor six (42), the output end of the motor six (42) is fixedly connected to one end of the bidirectional threaded rod two (43).

8. The hot pressing molding machine for processing acrylic glass for RV windows according to claim 7, characterized in that: The right end face of the clamp rod 2 (39) on the right side is slidably connected to an extension rod (44), and the extension rod (44) is threadedly connected to a threaded rod 4 (48), and the lower end of the threaded rod 4 (48) is rotatably set on the clamp rod 2 (39), and a motor 8 (47) is fixedly connected to one side of the right end face of the clamp rod 2 (39), and the output end of the motor 8 (47) is fixedly connected to one end of the threaded rod 4 (48), and a push rod (46) is rotatably set on one side of the upper end of the extension rod (44), and a motor 7 (45) is fixedly connected to one side of the upper end of the extension rod (44), and the output end of the motor 7 (45) is fixedly connected to one end of the push rod (46).

9. A hot pressing process for acrylic glass for RV windows, characterized in that: The processing is performed using the hot pressing molding machine according to any one of claims 1 to 8, comprising the following specific steps: S1, placing an acrylic sheet raw material to be hot-pressed into a mold cavity of a mold (2), heating and softening the acrylic sheet raw material through two heating plates (10), and when the raw material is softened, driving the pressing plate (8) downward, and extruding the acrylic sheet raw material through the pressing plate (8) to form it; S2, when the acrylic sheet is formed, the pressing plate (8) is driven away from the mold (2), and the connecting block (11) is driven to rise, so that the two demoulding rods (13) pass through the mold (2) at the same time, and the formed acrylic sheet is ejected upward; S3, after the acrylic sheet is ejected by the demoulding rod (13), the pressing block (27) and the positioning block (26) are used to clamp the acrylic sheet, drive the acrylic sheet to move toward the cooling box (1), and move the acrylic sheet between the two clamping plates (23), clamp the acrylic sheet by the two clamping plates (23), and drive the placement plate (16) to rotate. Whenever an acrylic sheet is formed, it is placed on the placement plate (17), and the cold air is transported to the inside of the cooling box (1) through the air outlet pipe (6) and the air outlet hood (7) by the cold air blower (5), so as to cool the acrylic sheet on the placement plate (17); S4. When the acrylic plate is cooled in the cooling box (1), the plurality of placement plates (17) are driven to rotate simultaneously so that the acrylic plate is evenly exposed to wind; S5. When the acrylic plate is cooled, the positioning block (26) is driven to move again to move the acrylic plate above the collecting plate (18), so that the multiple acrylic plates are placed above the collecting plate (18) in an overlapping state. When all the acrylic plates are placed above the collecting plate (18), the multiple acrylic plates are clamped by clamping rod 1 (38) and clamping rod 2 (39), and the edges of the multiple acrylic plates are aligned. Then, the collecting plate (18) is driven to rotate ninety degrees, and the box door (9) is opened to move the collecting plate (18) out of the cooling box (1). By controlling the lifting of the collecting plate (18), the multiple acrylic plates are placed above the conveyor belt. Then, the clamping rod 1 (38) and clamping rod 2 (39) are driven away from the acrylic plates, that is, the acrylic plates are placed on the conveyor belt in a horizontal arrangement. S6. When multiple acrylic plates arranged in a row are located above the conveyor belt, firstly move the clamp rod 2 (39) away from the acrylic plates. When the acrylic plates are placed above the conveyor belt, drive the extension rod (44) to slide along the clamp rod 2 (39) until the push rod (46) passes over the leftmost acrylic plate. At this time, drive the push rod (46) to contact the acrylic plate, and the clamp rod 1 (38) releases the acrylic plate. Moreover, a small distance is maintained between the clamp rod 1 (38) and the acrylic plate. Then drive the extension rod (44) to reset. During the reset of the extension rod (44), the push rod (46) pushes the upper edge of the acrylic plate, causing the multiple acrylic plates to tilt to one side. The clamp rod 1 (38) limits the tilting range of the acrylic plates, even if the multiple acrylic plates are placed on the conveyor belt in a uniform direction and in an inclined arrangement.

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