Blow molding machine for producing vehicle lampshade and using method

Abstract

The invention relates to the technical field of blow molding of vehicle lampshades, in particular to a blow molding machine for producing vehicle lampshades and a using method. Comprising a hollow table frame plate with a through groove formed in the middle, and a breathable plate clamped in the through groove and flush with the top face of the table frame plate. The forming assembly is longitudinally arranged above the exterior of the table frame plate in a sliding mode and used for forming a lampshade, the blow molding assembly is longitudinally arranged below the exterior of the table frame plate in a sliding mode and can transfer hot air into the forming assembly through the breathable plate, and a softened plastic plate to be subjected to blow molding can be placed on the top face of the table frame plate and the top face of the breathable plate. According to the invention, the lampshade taken out from the blow molding machine is the lampshade with the ring edge of the specified size, the subsequent ring edge cutting of the lampshade is avoided, the actual production steps of the vehicle lampshade are reduced, and meanwhile, the hardened plastic plate is recycled, namely, the redundant softened plastic plate and the hardened plastic plate are cut and recycled respectively, so that the production efficiency is improved. And follow-up targeted reutilization is facilitated, and unnecessary waste of the plastic plates is avoided.

Description

Technical Field

[0001] The invention relates to the technical field of blow molding of vehicle lampshades, and in particular to a blow molding machine for producing vehicle lampshades and a use method thereof. Background Art

[0002] Headlights are an important part of a car. When driving at night, headlights play a role in lighting and warning, and the main function of the lampshade is to make the light softer and more evenly diffuse into the space without causing glare, thus protecting the user's eyes. With the gradual development of automobile lighting technology, the lampshade has developed from the original single-color lampshade to the current two-color lampshade. Its function has also gradually expanded from a single light source to the role of shielding the stray light of the headlights, and can shield the internal parts of the car, in conjunction with the overall shape of the car body. The lampshade is usually made of plastic. When producing the lampshade, the plastic plate is generally heated first, and the heated and softened plastic plate is placed on a blow molding machine for blow molding, so that the plastic plate is blown into a lampshade of the corresponding shape.

[0003] In the process of blow-molding the lampshade from the softened plastic plate, since the size of the plastic plate is large and the size of the plastic plate required for blow molding is small, the excess portion of the softened plastic plate that is not blow-molded is large during a single blow molding process. The existing blow molding machine does not promptly cut off and recycle this excess softened plastic plate, resulting in a waste of the softened plastic plate. After the hardening blow molding is completed, the bottom end of the lampshade often has a longer ring edge, while the lampshade often only requires a ring edge of a specified size. The existing blow molding machine lacks the ability to cut off the ring edge, and often directly removes the lampshade with the excess ring edge, and then cuts off the excess ring edge, which unnecessarily increases the production steps of the lampshade.

[0004] Therefore, it is necessary to invent a blow molding machine for producing vehicle lampshades and a method of using the same to solve the above problems. Summary of the invention

[0005] In order to address the deficiencies in the prior art, the purpose of the present invention is to provide a blow molding machine for producing vehicle lampshades and a method of use, which solves the problem that in the prior art, during a single blow molding process, the excess portion of the softened plastic plate that has not been blow-molded is large, and the existing blow molding machine does not promptly cut off and recycle this portion of the excess softened plastic plate, resulting in waste of the softened plastic plate; and after the hardening blow molding is completed, the bottom end of the lampshade often has a longer ring edge, while the lampshade often only needs a ring edge of a specified size, and the existing blow molding machine lacks the ability to cut off the ring edge, and often directly removes the lampshade with the excess ring edge, and then cuts off the excess ring edge, which unnecessarily increases the production steps of the lampshade.

[0006] In order to achieve the above object, the present invention adopts the following technical solution:

[0007] A blow molding machine for producing vehicle lampshades, comprising a table frame plate which is hollow inside and has a through groove in the middle, an air permeable plate which is clamped in the through groove and flush with the top surface of the table frame plate, a molding component which is longitudinally slidably arranged above the outside of the table frame plate and is used for molding lampshades, and a blow molding component which is longitudinally slidably arranged below the outside of the table frame plate and can transfer hot air through the air permeable plate to the molding component, the softened plastic plate to be blown can be placed on the table frame plate and the top surface of the air permeable plate, an outer cavity component is longitudinally slidably arranged above the outside of the table frame plate, the outer cavity component comprises a vertical cylinder which is slidably sleeved on the outer peripheral side wall of the molding component, an annular cylinder arranged at the bottom end of the vertical cylinder, and an inner ring abutment plate arranged at the bottom end of the annular cylinder, the inner peripheral side walls of the annular cylinder, the vertical cylinder and the inner ring abutment plate are all longitudinally slidably abutted against the outer peripheral side walls of the molding component, a rotating mechanism is arranged for annular rotation inside the table frame plate, and a cutting mechanism is arranged at the top of the rotating mechanism The first cutting knife for cutting the unformed softened plastic plate, the top surface of the table frame plate is provided with an annular groove where the first cutting knife is adapted, the first cutting knife extends out of the annular groove and can slide in annularly along the first annular groove, the peripheral side wall of the table frame plate is equipped with a driving mechanism that can drive the rotating mechanism to rotate in annular manner, the outer cavity component also includes an annular disk arranged on the peripheral side wall of the vertical cylinder and two outer ring abutment plates arranged at the bottom end of the annular disk, the two outer ring abutment plates are both located directly above the annular groove, the annular disk is provided with a square groove, and a second cutting knife that can be longitudinally retracted and can be used for cutting the hardened plastic plate is laterally slidable in the square groove, the driving assembly includes a rotatable fixed gear, a synchronous column arranged at the top center of the fixed gear, and a moving gear longitudinally slidably sleeved on the synchronous column, the fixed gear can drive the rotating mechanism to rotate, the moving gear can drive the annular disk to rotate, and the outer ring abutment plate is flush with the bottom surface of the inner ring abutment plate.

[0008] As a preferred solution of the present invention, the inner side wall of the table frame plate is detachably mounted with a plurality of first annular slide rails, the rotating assembly includes a plurality of first slide seats that can slide in annularly along the first annular slide rails, a connecting plate arranged at the bottom side of the other end of each first slide seat, and an extension plate arranged at the top side of the other end of one of the first slide seats, a first gear plate is commonly mounted between the other ends of the plurality of connecting plates, and the first gear plate is meshingly connected to the fixed gear.

[0009] As a preferred solution of the present invention, a mounting ring is installed at a position below the annular groove on the top surface of the extension plate, the first cutter is detachably mounted on the top of the mounting ring, an annular slide is annularly slidable in the annular groove, side abutment strips are clamped at both ends of the circumferential side walls of the mounting ring, and the other ends of the two side abutment strips are detachably clamped to the two end portions of the annular slide respectively.

[0010] As a preferred solution of the present invention, a plurality of second annular slide rails are detachably installed on the circumferential side walls of the vertical cylinder, a plurality of second slide seats that can slide in an annular manner along the second annular slide rails are installed on the circumferential side walls of the ring disk, a mounting groove is provided on the top side of the outer circumferential side wall of the ring disk, a second toothed disk is detachably installed in the mounting groove, and the bottom end of the second toothed disk abuts against the mounting groove, and a pressure plate whose bottom end can abut against the top end of the second toothed disk is installed on the top end of the ring disk, and the second toothed disk is meshingly connected to the moving gear.

[0011] As a preferred solution of the present invention, the peripheral side walls of the table frame plate are provided with side grooves for the first gear plate to mesh with the fixed gear, and an L-shaped mounting plate is installed on the outer bottom surface of the table frame plate. The driving mechanism also includes a side fixing frame detachably installed on the peripheral side walls of the side grooves and a driving member installed in the L-shaped mounting plate, and the fixed gear is located in the side fixing frame, and the output end of the driving member rotates through the bottom end of the side fixing frame and is detachably connected to the center of the bottom surface of the fixed gear, and a synchronous shaft rotatably installed at the center of the top surface of the fixed gear, which passes through the top surface of the side fixing frame and extends to the top of the side fixing frame, and the bottom end of the synchronous column is connected to the top end of the synchronous shaft.

[0012] As a preferred solution of the present invention, the molding assembly includes a molding block that can slide longitudinally along the inner peripheral side wall of the vertical cylinder and a molding cavity opened inside the molding block and matching the shape of the lampshade to be blow-molded.

[0013] As a preferred solution of the present invention, columns are installed at the four corners of the bottom end of the table frame plate, and a bottom plate is commonly connected between the bottom ends of the multiple columns, an L-shaped frame is installed on the side walls around the bottom plate, and a top frame is installed on the top of the L-shaped frame, and a plurality of longitudinally retractable first telescopic parts are installed on the bottom end of the top frame, and the bottom ends of the first telescopic parts are detachably connected to the top end of the vertical tube, and a longitudinally retractable second telescopic part is also installed on the bottom end of the top frame, the telescopic part of the second telescopic part is longitudinally slidably penetrated into the vertical tube and is detachably connected to the top end of the forming block, and the longitudinal extension and contraction of the first telescopic part and the second telescopic part do not interfere with each other, and a side surface of the side fixed frame is detachably connected to the side wall of the L-shaped frame, and the side wall of the L-shaped frame is installed with a card plate that can abut against the top of the synchronous column.

[0014] As a preferred solution of the present invention, guide rails are provided on both side walls of the square groove, a slider is provided between the two guide rails for horizontal sliding, a third telescopic member is installed on the top of the slider, the telescopic part of the third telescopic member slides longitudinally through the slider and extends to the bottom of the slider, and the second cutter is installed at the bottom end of the telescopic part of the third telescopic member.

[0015] As a preferred embodiment of the present invention, the blow molding assembly includes a mounting plate arranged at the center of the top surface of the base plate, a fourth telescopic member arranged at the center of the top surface of the mounting plate and capable of longitudinal extension and retraction, a bracket arranged at the top of the fourth telescopic member, an air pump clamped in the bracket, and an air cylinder installed at the air outlet end of the air pump, air holes are provided at the matching positions of the air cylinder and the air permeable plate, an outer ring clamp is provided on the top side of the peripheral side wall of the air cylinder, a sealing ring strip is installed on the top of the outer ring clamp, a sealing groove for longitudinal insertion of the sealing ring strip is provided on the bottom surface of the air permeable plate, a plurality of limit columns are installed at the bottom end of the table frame plate, and a plurality of guide plates that can slide longitudinally along the limit columns are installed on the peripheral side wall of the outer ring clamp.

[0016] A method for using a blow molding machine for producing a vehicle lampshade comprises the following steps:

[0017] S1: The softened plastic plate is placed on the top surface of the table frame plate and the air permeable plate, ensuring that the plastic plate completely covers the air permeable plate;

[0018] S2: the first telescopic member moves longitudinally downward until the bottom ends of the inner ring abutment plate and the outer ring abutment plate are in contact with the plastic plate and press the plastic plate, and the second telescopic member moves longitudinally downward to the bottom end of the forming block and contacts the plastic plate;

[0019] S3: Under the clamping limit of the two outer rings, the fixed gear is driven to rotate, thereby driving the rotating member to rotate, and then driving the first cutter to rotate along the annular groove to complete the removal of the excess softened plastic plate on the periphery;

[0020] S4: driving the fourth telescopic member to move longitudinally upward to the top of the air cylinder to abut against the bottom surface of the air-permeable plate, and the blow-molding component blows air into the molding cavity through the air holes to complete the blow molding of the lampshade;

[0021] S5: After the blow molding is completed, the fourth telescopic member is driven to move longitudinally downward until the air cylinder is separated from the air permeable plate, and cold air enters the molding cavity to complete the cooling and shaping of the lampshade, and the second telescopic member is moved longitudinally upward, and the hardened and molded lampshade is kept stationary under the limit of the inner ring plate;

[0022] S6: The slider slides along the guide rail to different ring edge diameters of the hardened plastic plate, driving the third telescopic member to move longitudinally downward until the second cutter penetrates into the hardened plastic plate, and under the clamping limit of the inner ring abutment plate, drives the fixed gear to rotate and drives the moving gear to rotate through the synchronous column, thereby driving the second cutter to cut the hardened plastic plate, completing the cutting of the molded lampshade with ring edge and excess plastic plate, and then the first telescopic member moves upward to take out the molded lampshade with ring edge and excess plastic plate.

[0023] In the above technical solution, the technical effects and advantages provided by the present invention are:

[0024] In the present invention, the vertical cylinder is moved downward so that the bottom ends of the inner ring abutment plate and the outer ring abutment plate are in contact with the plastic plate and press the plastic plate, thereby fixing the position of the softened plastic plate on the top surface of the table frame plate and the air-permeable plate. At this time, the fixed gear is driven to rotate, and then the first cutter is driven by the rotation of the rotating member to cut the softened plastic plate inside the two outer ring abutment plates, and then the softened plastic plate outside the outer ring abutment plates after cutting is recovered, and then the molding assembly is driven downward to abut and press the softened plastic plate, and the blowing is performed by moving upward. The plastic component is brought into contact with the air permeable plate, and then hot air is transferred to the molding component through the air permeable plate to blow-mold the softened plastic plate therein, that is, the blow molding of the lampshade is completed. After the blow molding is completed, the molding component moves up, and the lampshade with the ring edge after molding maintains its original position unchanged under the abutment limit of the inner ring abutment plate. At this time, according to the actual required ring edge length of the lampshade, the lateral position of the second cutter in the square groove is changed, and when it moves to the actual required ring edge length, the second cutter is driven to move down and insert the hardened plastic plate The fixed gear is then driven to rotate again and the moving gear is driven to rotate through the synchronous column. Under the rotation drive of the moving gear, the ring disk rotates in a circle on the circumferential side wall of the ring cylinder, that is, driving the second cutter to perform a circular cutting on the hardened plastic plate, that is, completing the cutting of the lampshade with a ring edge and the excess hardened plastic plate. After the cutting is completed, the vertical cylinder is moved up and the inner ring abutment plate and the outer ring abutment plate are synchronously driven to move up, so as to release the pressing limit of the lampshade with a ring edge, and then the lampshade with a ring edge and the excess hardened plastic plate are taken out respectively, and finally the excess softened plastic plate is cut and recycled before blow molding. At the same time, after the blow molding is completed, the lampshade with a ring edge and the excess hardened plastic plate are cut, so that the lampshade taken out from the blow molding machine is already a lampshade with a ring edge of specified size, avoiding the subsequent ring edge cutting of the lampshade, reducing the actual production steps of the vehicle lampshade, and recycling the hardened plastic plate at the same time, that is, completing the cutting and recycling of the excess softened plastic plate and the hardened plastic plate, which is convenient for subsequent targeted reuse and avoiding unnecessary waste of plastic plates. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0026] Figure 2 For the present invention Figure 1 A schematic diagram of a plan view of the structure;

[0027] Figure 3 For the present invention Figure 1 A schematic diagram of the plan view of the structure;

[0028] Figure 4 For the present invention Figure 3 Schematic diagram of the cross-section structure at AA in the middle;

[0029] Figure 5This is a schematic diagram of the overall structure of the present invention after the relevant components of the table frame are hidden;

[0030] Figure 6 For the present invention Figure 5 Schematic diagram of the overall structure from another perspective;

[0031] Figure 7 It is a schematic diagram of the overall structure of the present invention after the table frame plate and the blow molding assembly related parts are hidden;

[0032] Figure 8 For the present invention Figure 5 Middle B is a schematic diagram of the locally enlarged structure.

[0033] Description of reference numerals:

[0034] 1. Table frame; 2. Upright column; 3. Bottom plate; 4. L-shaped frame; 5. Top frame; 6. Through slot; 7. Breathable plate; 8. First telescopic member; 9. Second telescopic member; 10. Upright cylinder; 11. Forming block; 12. Forming cavity; 13. First annular slide rail; 14. First slide seat; 15. Connecting plate; 16. First toothed disc; 17. Annular groove; 18. Annular slide plate; 19. Mounting ring; 20. Side abutment strip; 21. First cutter; 22. Annular cylinder; 23. Inner annular abutment plate; 24. Outer annular abutment plate; 25. Second annular slide rail; 26. Second slide seat; 27. Annular disc; 28. Mounting slot; 29. Second toothed disc; 30. Pressing plate; 31. L-shaped mounting plate; 32. Driving member; 33. Side fixing frame; 34. Fixed gear; 35. Synchronous shaft; 36. Synchronous column; 37. Moving gear; 38. Clamping plate; 39. Square groove; 40. Guide rail; 41. Sliding block; 42. Third telescopic member; 43. Second cutter; 44. Limiting column; 45. Mounting plate; 46. Fourth telescopic member; 47. Clamping frame; 48. Air pump; 49. Air cylinder; 50. Outer ring clamp; 51. Sealing ring strip; 52. Sealing groove; 53. Guide plate; 54. Air vent; 55. Side groove; 56. Extension plate. DETAILED DESCRIPTION

[0035] The present invention will be further described below in conjunction with the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the present invention, and cannot be used to limit the protection scope of the present invention.

[0036] The present invention provides Figure 1-8The blow molding machine for producing vehicle lampshades shown in the figure comprises a table frame plate 1 which is hollow inside and has a through groove 6 in the middle, a breathable plate 7 which is clamped inside the through groove 6 and is flush with the top surface of the table frame plate 1, a molding component which is longitudinally slidably arranged above the outside of the table frame plate 1 and is used for molding the lampshade, and a blow molding component which is longitudinally slidably arranged below the outside of the table frame plate 1 and can transfer hot air through the breathable plate 7 to the molding component. The softened plastic plate to be blow molded can be placed on the table frame plate 1 and the top surface of the breathable plate 7. An outer cavity component is longitudinally slidably arranged above the outside of the table frame plate 1. The outer cavity component The present invention comprises a vertical cylinder 10 slidably sleeved on the outer peripheral side wall of the molding component, an annular cylinder 22 arranged at the bottom end of the vertical cylinder 10, and an inner annular plate 23 arranged at the bottom end of the annular cylinder 22. The inner peripheral side walls of the annular cylinder 22, the vertical cylinder 10, and the inner annular plate 23 are longitudinally slidably abutted against the outer peripheral side wall of the molding component. A rotating mechanism is arranged for circular rotation inside the table frame plate 1. A first cutter 21 for cutting the unmolded softened plastic plate is arranged at the top of the rotating mechanism. An annular groove 17 is opened at the top surface of the table frame plate 1 where the first cutter 21 is adapted. The first cutter 21 extends out of the annular groove 17 and can be moved along the first annular groove 17. 7 annular sliding, the side wall of the frame plate 1 is installed with a driving mechanism that can drive the rotating mechanism to rotate annularly, the outer cavity component also includes an annular disk 27 annularly rotatably arranged on the side wall of the vertical cylinder 10 and two outer ring abutment plates 24 arranged at the bottom end of the annular disk 27, the two outer ring abutment plates 24 are both located directly above the annular groove 17, a square groove 39 is opened in the annular disk 27, and a second cutter 43 that can be longitudinally retracted and can be used to cut the hardened plastic plate is transversely slid in the square groove 39, the driving component includes a rotatable fixed gear 34, a synchronous column 36 arranged at the top center of the fixed gear 34, and a And the movable gear 37 longitudinally slidably sleeved on the synchronous column 36, the fixed gear 34 can drive the rotating mechanism to rotate, the movable gear 37 can drive the ring disk 27 to rotate, the outer ring abutment plate 24 is flush with the bottom surface of the inner ring abutment plate 23, and the existence of the two outer ring abutment plates 24 can press the softened plastic plate into the annular groove 17, and then in the process of the first cutter 21 sliding along the annular groove 17, the softened plastic plate inside is cut, and then the cutting of the excess softened plastic plate is completed before blow molding, which is convenient for the recycling and reuse of this part of the softened plastic plate.

[0037] A plurality of first annular slide rails 13 are detachably mounted on the inner side wall of the table frame plate 1, and the rotating assembly includes a plurality of first slide seats 14 that can slide in annular manner along the first annular slide rails 13, a connecting plate 15 provided on the bottom side of the other end of each first slide seat 14, and an extension plate 56 provided on the top side of the other end of one of the first slide seats 14, and a first toothed disc 16 is commonly mounted between the other ends of the plurality of connecting plates 15, and the first toothed disc 16 is meshedly connected with the fixed gear 34, and the fixed gear 34 rotates to drive the first toothed disc 16 to rotate, thereby driving the first slide seat 14 to slide along the first annular slide rail 13, that is, driving the first cutter 21 to slide in annular manner in the annular groove 17 to complete the cutting of the softened plastic plate.

[0038] A mounting ring 19 is installed at a position below the annular groove 17 on the top surface of the extension plate 56. The first cutter 21 is detachably mounted on the top of the mounting ring 19. An annular slide plate 18 is annularly slidable in the annular groove 17. Side abutment bars 20 are clamped at both ends of the side walls of the mounting ring 19. The other ends of the two side abutment bars 20 are detachably clamped with the two end portions of the annular slide plate 18 respectively. During the annular sliding of the first slide seat 14, the mounting ring 19 slides synchronously and drives the annular slide plate 18 to slide in the annular groove 17 through the side abutment bars 20, so as to prevent the softened plastic plate cut from falling into the table frame plate 1 through the annular groove 17.

[0039] A plurality of second annular rails 25 are detachably mounted on the peripheral side wall of the vertical cylinder 10, a plurality of second slide seats 26 that can slide in an annular manner along the second annular rails 25 are mounted on the peripheral side wall of the ring disk 27, a mounting groove 28 is provided on the top side of the outer peripheral side wall of the ring disk 27, a second toothed disk 29 is detachably mounted in the mounting groove 28, and the bottom end of the second toothed disk 29 abuts against the mounting groove 28, and a pressure plate 30 whose bottom end can abut against the top end of the second toothed disk 29 is mounted on the top of the ring disk 27, the second toothed disk 29 is meshedly connected with the moving gear 37, when the vertical cylinder 10 moves up or down, the ring disk 27 is driven to move up or down synchronously by the ring cylinder 22, and under the limitation of the pressure plate 30 and the mounting groove 28, the moving gear 37 is driven to move up or down synchronously along the synchronization column 36, that is, the moving gear 37 and the second toothed disk 29 are in a meshing connection state at any longitudinal height.

[0040] A side groove 55 is provided on the side wall of the table frame plate 1 for the first gear plate 16 to mesh with the fixed gear 34. An L-shaped mounting plate 31 is installed on the outer bottom surface of the table frame plate 1. The driving mechanism also includes a side fixing frame 33 detachably mounted on the outer side wall of the side groove 55 and a driving member 32 installed in the L-shaped mounting plate 31. The fixed gear 34 is located in the side fixing frame 33. The output end of the driving member 32 rotates through the bottom end of the side fixing frame 33 and is detachably connected to the center of the bottom surface of the fixed gear 34. A synchronous shaft 35 rotatably penetrates the top surface of the side fixing frame 33 and extends to the top of the side fixing frame 33 is installed at the center of the top surface of the fixed gear 34. The bottom end of the synchronous column 36 is connected to the top end of the synchronous shaft 35. The driving member 32 drives the driven gear 37 to rotate, and then drives the driven gear 37 to rotate through the synchronous shaft 35 and the synchronous column 36.

[0041] The molding assembly includes a molding block 11 which can slide longitudinally along the inner peripheral side wall of the vertical tube 10 and a molding cavity 12 which is opened inside the molding block 11 and matches the shape of the lampshade to be blow-molded.

[0042] The four corners of the bottom end of the table frame 1 are all installed with columns 2, and the bottom ends of multiple columns 2 are commonly connected with a bottom plate 3, and the side walls around the bottom plate 3 are installed with L-shaped frames 4, and the top frame 5 is installed at the top of the L-shaped frame 4. The bottom end of the top frame 5 is installed with multiple first telescopic members 8 that can be longitudinally extended and retracted, and the bottom ends of the first telescopic members 8 are detachably connected to the top of the vertical tube 10, and the bottom end of the top frame 5 is also installed with a second telescopic member 9 that can be longitudinally extended and retracted. The telescopic part of the second telescopic member 9 is longitudinally slidably penetrated into the vertical tube 10 and is detachably connected to the top of the forming block 11, and the longitudinal extension and retraction of the first telescopic member 8 and the second telescopic member 9 do not interfere with each other, and one side of the side fixing frame 33 is detachably connected to the side wall of the L-shaped frame 4, and the side wall of the L-shaped frame 4 is installed with a card plate 38 that can abut against the top of the synchronous column 36, and the existence of the card plate 38 can prevent the movable gear 37 from sliding excessively longitudinally and disengaging from the synchronous column 36.

[0043] Guide rails 40 are provided on both side walls of the square groove 39, and a slider 41 is provided between the two guide rails 40 for transverse sliding. A third telescopic member 42 is installed on the top of the slider 41. The telescopic portion of the third telescopic member 42 slides longitudinally through the slider 41 and extends to the bottom of the slider 41. The second cutter 43 is installed at the bottom end of the telescopic portion of the third telescopic member 42. The slider 41 slides transversely along the guide rail 40, thereby changing the transverse position of the second cutter 43, so as to facilitate cutting of ring edges of different diameters and lengths on the hardened plastic plate. The existence of the third telescopic member 42 can facilitate downward movement so that the second cutter 43 can extend into the hardened plastic plate, and can also facilitate upward movement to prevent the second cutter 43 from contacting the softened plastic plate.

[0044] The blow molding assembly includes a mounting plate 45 arranged at the center of the top surface of the base plate 3, a fourth telescopic member 46 arranged at the center of the top surface of the mounting plate 45 and longitudinally telescopic, a bracket 47 arranged at the top end of the fourth telescopic member 46, an air pump 48 clamped in the bracket 47, and an air cylinder 49 installed at the air outlet end of the air pump 48. Air holes 54 are provided at the matching positions of the air cylinder 49 and the air permeable plate 7. An outer ring clamp 50 is provided on the top side of the side wall of the air cylinder 49. A sealing ring strip 51 is installed on the top of the outer ring clamp 50. A sealing groove 52 for longitudinal insertion of the sealing ring strip 51 is provided on the bottom surface of the air permeable plate 7. A plurality of limiting columns 44 are installed at the bottom end of the table frame plate 1. A plurality of guide plates 53 that can slide longitudinally along the limiting columns 44 are installed on the side wall of the outer ring clamp 50. When the top surface of the air cylinder 49 abuts against the bottom surface of the air permeable plate 7, the sealing ring strip 51 is inserted into the sealing groove 52 to prevent the molding hot air produced by the air pump 48 from leaking out.

[0045] A method for using a blow molding machine for producing a vehicle lampshade comprises the following steps:

[0046] S1: The softened plastic plate is placed on the top surface of the table frame plate 1 and the air permeable plate 7, ensuring that the plastic plate completely covers the air permeable plate 7;

[0047] S2: The first telescopic member 8 moves longitudinally downward until the bottom ends of the inner ring abutment plate 23 and the outer ring abutment plate 24 are in contact with the plastic plate and press the plastic plate, and the second telescopic member 9 moves longitudinally downward to the bottom end of the forming block 11 and is in contact with the plastic plate;

[0048] S3; under the clamping limit of the two outer rings against the plate 24, the fixed gear 34 is driven to rotate, thereby driving the rotating member to rotate, thereby driving the first cutter 21 to rotate along the annular groove 17 to complete the removal of the excess softened plastic plate on the periphery;

[0049] S4: driving the fourth telescopic member 46 to move longitudinally upward to the top of the air cylinder 49 to abut against the bottom surface of the air permeable plate 7, and the blow molding assembly blows air into the molding cavity 12 through the air permeable hole 54 to complete the blow molding of the lampshade;

[0050] S5: After the blow molding is completed, the fourth telescopic member 46 is driven to move longitudinally downward to the air cylinder 49 and separate from the air permeable plate 7, and the cold air enters the molding cavity 12 to complete the cooling and shaping of the lampshade, and the second telescopic member 9 moves longitudinally upward, and the hardened and molded lampshade is kept stationary under the limit of the inner ring plate 23;

[0051] S6: The slider 41 slides along the guide rail 40 to different ring edge diameters of the hardened plastic plate, driving the third telescopic member 42 to move longitudinally downward until the second cutter 43 extends into the hardened plastic plate, and under the clamping limit of the inner ring abutment plate 23, drives the fixed gear 34 to rotate and drives the movable gear 37 to rotate through the synchronization column 36, thereby driving the second cutter 43 to cut the hardened plastic plate, completing the cutting of the molded lampshade with a ring edge and the excess plastic plate, and then the first telescopic member 8 moves upward to take out the molded lampshade with a ring edge and the excess plastic plate.

[0052] In the present invention, the vertical cylinder 10 is moved downward so that the bottom ends of the inner ring plate 23 and the outer ring plate 24 are in contact with the plastic plate and press the plastic plate, thereby fixing the position of the softened plastic plate on the top surface of the table frame plate 1 and the air-permeable plate 7. At this time, the fixed gear 34 is driven to rotate, and then the first cutter 21 cuts the softened plastic plate in the two outer ring plates 24 under the rotation of the rotating member, and then the softened plastic plate located outside the outer ring plates 24 after cutting is recovered, and then the molding assembly is driven downward to abut and press the softened plastic plate .... The blow molding assembly is moved upward to abut against the air permeable plate 7, and then the hot air is transferred to the molding assembly through the air permeable plate 7 to blow-mold the softened plastic plate therein, that is, the blow molding of the lampshade is completed. After the blow molding is completed, the molding assembly is moved upward, and the lampshade with the ring edge after molding is kept in the original position under the abutment limit of the inner ring abutment plate 23. At this time, according to the actual required ring edge length of the lampshade, the lateral position of the second cutter 43 in the square groove 39 is changed, and when it moves to the actual required ring edge length, the second cutter 43 is driven to move downward and inserted into the hardened The fixed gear 34 is then driven to rotate again and the moving gear 37 is driven to rotate through the synchronous column 36. Under the rotation drive of the moving gear 37, the ring disk 27 rotates in a circular manner on the side wall of the ring cylinder 22, that is, the second cutter 43 is driven to perform a circular cutting on the hardened plastic plate, that is, the cutting of the ring-edged lampshade and the excess hardened plastic plate is completed. After the cutting is completed, the vertical cylinder 10 is moved up and the inner ring plate 23 and the outer ring plate 24 are synchronously driven to move up, the pressing limit of the ring-edged lampshade is released, and then the ring-edged lampshade and the excess are taken out respectively. The hardened plastic plate is finally cut and recycled before blow molding, and the lampshade with ring edge and the excess hardened plastic plate are cut after blow molding, so that the lampshade taken out of the blow molding machine is already a lampshade with a ring edge of specified size, avoiding the subsequent ring edge cutting of the lampshade, reducing the actual production steps of the vehicle lampshade, and recycling the hardened plastic plate at the same time, that is, completing the separate cutting and recycling of the excess softened plastic plate and the hardened plastic plate, which is convenient for subsequent targeted reuse and avoids unnecessary waste of plastic plates.

[0053] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the technical principles of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.

Claims

1. A blow molding machine for producing vehicle lampshades, characterized in that: The invention comprises a table frame plate (1) which is hollow inside and has a through groove (6) in the middle, a ventilation plate (7) which is clamped inside the through groove (6) and is flush with the top surface of the table frame plate (1), a molding component which is longitudinally slidably arranged above the outside of the table frame plate (1) and is used for molding the lampshade, and a blow molding component which is longitudinally slidably arranged below the outside of the table frame plate (1) and can transfer hot air to the molding component through the ventilation plate (7), wherein the softened plastic plate to be blow molded can be placed on the table frame plate (1) and the top surface of the ventilation plate (7), and the longitudinally slidably arranged above the outside of the table frame plate (1) An outer cavity component is provided, the outer cavity component comprises a vertical cylinder (10) slidably sleeved on the outer peripheral side wall of the molding component, an annular cylinder (22) arranged at the bottom end of the vertical cylinder (10), and an inner annular plate (23) arranged at the bottom end of the annular cylinder (22), the inner peripheral side walls of the annular cylinder (22), the vertical cylinder (10) and the inner annular plate (23) are all longitudinally slidably abutted against the outer peripheral side wall of the molding component, a rotating mechanism is provided inside the table frame plate (1) for circular rotation, a first cutter (21) for cutting unmolded softened plastic plates is provided at the top end of the rotating mechanism, and the table frame plate (1) An annular groove (17) is provided at the top surface where the first cutter (21) is adapted. The first cutter (21) extends out of the annular groove (17) and can slide in an annular manner along the first annular groove (17). A driving mechanism capable of driving the rotating mechanism to rotate in an annular manner is installed on the peripheral wall of the table frame plate (1). The outer cavity component also includes an annular disk (27) which is arranged in an annular manner on the peripheral wall of the vertical cylinder (10) and two outer annular plates (24) arranged at the bottom end of the annular disk (27). The two outer annular plates (24) are both located directly above the annular groove (17). The annular disk (27) A square groove (39) is provided inside the square groove (39), and a second cutter (43) which can be longitudinally retracted and used for cutting the hardened plastic plate is transversely slidable inside the square groove (39), and the driving assembly comprises a rotatable fixed gear (34), a synchronous column (36) arranged at the top center of the fixed gear (34), and a movable gear (37) longitudinally slidably sleeved on the synchronous column (36), the fixed gear (34) can drive the rotating mechanism to rotate, and the movable gear (37) can drive the ring disk (27) to rotate, and the outer ring plate (24) is flush with the bottom surface of the inner ring plate (23).

2. A blow molding machine for producing vehicle lampshades according to claim 1, characterized in that: The inner side wall of the table frame plate (1) is detachably mounted with a plurality of first annular slide rails (13); the rotating assembly comprises a plurality of first slide seats (14) that can slide along the first annular slide rails (13); a connecting plate (15) arranged at the bottom side of the other end of each first slide seat (14); and an extension plate (56) arranged at the top side of the other end of one of the first slide seats (14); a first toothed disc (16) is commonly mounted between the other ends of the plurality of connecting plates (15); and the first toothed disc (16) is meshingly connected to the fixed gear (34).

3. A blow molding machine for producing vehicle lampshades according to claim 2, characterized in that: A mounting ring (19) is installed on the top surface of the extension plate (56) at a position below the annular groove (17); the first cutter (21) is detachably installed on the top of the mounting ring (19); an annular slide plate (18) is annularly slidable in the annular groove (17); side abutment strips (20) are clamped at both ends of the circumferential side walls of the mounting ring (19); and the other ends of the two side abutment strips (20) are detachably clamped to the two end portions of the annular slide plate (18) respectively.

4. A blow molding machine for producing vehicle lampshades according to claim 1, characterized in that: A plurality of second annular slide rails (25) are detachably mounted on the peripheral side wall of the vertical cylinder (10), a plurality of second slide seats (26) that can slide in an annular manner along the second annular slide rails (25) are mounted on the peripheral side wall of the annular disk (27), a mounting groove (28) is provided on the top side of the outer peripheral side wall of the annular disk (27), a second toothed disk (29) is detachably mounted in the mounting groove (28), and the bottom end of the second toothed disk (29) abuts against the mounting groove (28), and a pressure plate (30) whose bottom end can abut against the top end of the second toothed disk (29) is mounted on the top end of the annular disk (27), and the second toothed disk (29) is meshingly connected with the movable gear (37).

5. A blow molding machine for producing vehicle lampshades according to claim 2, characterized in that: The peripheral side wall of the table frame plate (1) is provided with a side groove (55) for meshing and connecting the first gear disc (16) and the fixed gear (34); an L-shaped mounting plate (31) is installed on the outer bottom surface of the table frame plate (1); the driving mechanism also includes a side fixing frame (33) detachably mounted on the peripheral side wall of the side groove (55) and a driving member (32) installed in the L-shaped mounting plate (31); the fixed gear (34) is located in the side fixing frame (33); the output end of the driving member (32) rotatably passes through the bottom end of the side fixing frame (33) and is detachably connected to the center of the bottom surface of the fixed gear (34); a synchronous shaft (35) rotatably passes through the top surface of the side fixing frame (33) and extends to the top of the side fixing frame (33) is installed at the center of the top surface of the fixed gear (34); the bottom end of the synchronous column (36) is connected to the top end of the synchronous shaft (35).

6. A blow molding machine for producing vehicle lampshades according to claim 1, characterized in that: The molding assembly comprises a molding block (11) which can slide longitudinally along the inner peripheral side wall of the vertical cylinder (10), and a molding cavity (12) which is opened inside the molding block (11) and matches the shape of the lampshade to be blow-molded.

7. A blow molding machine for producing vehicle lampshades according to claim 5, characterized in that: The four corners of the bottom end of the platform frame plate (1) are all provided with upright posts (2), the bottom ends of the plurality of upright posts (2) are commonly connected with a bottom plate (3), the side walls of the bottom plate (3) are provided with an L-shaped frame (4), the top end of the L-shaped frame (4) is provided with a top frame (5), the bottom end of the top frame (5) is provided with a plurality of longitudinally retractable first telescopic members (8), and the bottom ends of the first telescopic members (8) are all detachably connected with the top end of the vertical tube (10), the bottom end of the top frame (5) is also provided with a longitudinally retractable second telescopic member (9), the telescopic portion of the second telescopic member (9) is longitudinally slidably penetrated in the vertical tube (10) and is detachably connected with the top end of the forming block (11), and the longitudinal retraction of the first telescopic member (8) and the second telescopic member (9) do not interfere with each other, one side of the side fixing frame (33) is detachably connected with the side wall of the L-shaped frame (4), and the side wall of the L-shaped frame (4) is provided with a card plate (38) that can abut against the top end of the synchronous column (36).

8. The blow molding machine for producing vehicle lampshades according to claim 1, characterized in that: Guide rails (40) are provided on both side walls of the square groove (39); a slider (41) is provided between the two guide rails (40) for transverse sliding; a third telescopic member (42) is installed at the top of the slider (41); the telescopic portion of the third telescopic member (42) longitudinally slides through the slider (41) and extends to the bottom of the slider (41); and the second cutter (43) is installed at the bottom of the telescopic portion of the third telescopic member (42).

9. A blow molding machine for producing vehicle lampshades according to claim 7, characterized in that: The blow molding assembly comprises a mounting plate (45) disposed at the center of the top surface of the bottom plate (3), a fourth telescopic member (46) disposed at the center of the top surface of the mounting plate (45) and capable of longitudinal extension and contraction, a bracket (47) disposed at the top end of the fourth telescopic member (46), an air pump (48) clamped in the bracket (47), and an air cylinder (49) mounted at the air outlet end of the air pump (48), and air holes (54) are provided at the matching positions of the air cylinder (49) and the air permeable plate (7). The top side of the peripheral wall of the air cylinder (49) is sleeved with an outer ring clamp (50), the top of the outer ring clamp (50) is installed with a sealing ring strip (51), the bottom surface of the air permeable plate (7) is provided with a sealing groove (52) for the sealing ring strip (51) to be longitudinally inserted, a plurality of limit columns (44) are installed at the bottom end of the platform frame plate (1), and a plurality of guide plates (53) that can slide longitudinally along the limit columns (44) are installed on the peripheral wall of the outer ring clamp (50).

10. A method for using a blow molding machine for producing a vehicle lampshade according to any one of claims 1 to 9, characterized in that: The steps include: S1: placing a softened plastic plate on the top surface of the table frame plate (1) and the air permeable plate (7), ensuring that the plastic plate completely covers the air permeable plate (7); S2: the first telescopic member (8) moves longitudinally downward to the bottom ends of the inner ring abutment plate (23) and the outer ring abutment plate (24) and contacts the plastic plate and presses the plastic plate, and the second telescopic member (9) moves longitudinally downward to the bottom end of the forming block (11) and contacts the plastic plate; S3: Under the clamping limit of the two outer ring abutment plates (24), the fixed gear (34) is driven to rotate, thereby driving the rotating member to rotate, thereby driving the first cutter (21) to rotate along the annular groove (17) to complete the removal of the excess softened plastic plate on the periphery; S4: driving the fourth telescopic member (46) to move longitudinally upward to the top of the air cylinder (49) to abut against the bottom surface of the air permeable plate (7), and the blow molding component blows air into the molding cavity (12) through the air permeable hole (54) to complete the blow molding of the lampshade; S5: After the blow molding is completed, the fourth telescopic member (46) is driven to move longitudinally downward to the air cylinder (49) to separate from the air permeable plate (7), and cold air enters the molding cavity (12) to complete the cooling and shaping of the lampshade. The second telescopic member (9) is moved longitudinally upward, and the hardened and molded lampshade is kept stationary under the limit of the inner ring plate (23); S6: The slider (41) slides along the guide rail (40) to different ring edge diameters of the hardened plastic plate, driving the third telescopic member (42) to move longitudinally downward until the second cutter (43) extends into the hardened plastic plate, and under the clamping limit of the inner ring plate (23), drives the fixed gear (34) to rotate and drives the movable gear (37) to rotate through the synchronization column (36), thereby driving the second cutter (43) to cut the hardened plastic plate, completing the cutting of the molded lampshade with a ring edge and the excess plastic plate, and then the first telescopic member (8) moves upward to take out the molded lampshade with a ring edge and the excess plastic plate.

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