Hot press forming device for acrylic plates

Abstract

The invention provides a hot-press forming device for acrylic plates, and belongs to the technical field of acrylic plate processing, the hot-press forming device comprises a base, the upper surface of the base is fixedly connected with a top plate through a supporting column, a lower die moving mechanism is arranged in the base, and the lower die moving mechanism comprises a bidirectional lead screw; the two-way lead screw is rotationally installed in the base, the surface of the two-way lead screw is movably connected with a moving seat through a sliding block, and the upper end of the moving seat penetrates through the upper portion of the base and is provided with a moving plate; by means of the arranged lower die moving mechanism, after a set of acrylic plates are subjected to hot press forming, the lower die moving mechanism can drive two sets of lower forming dies to move, the formed lower forming dies are moved to the side edge, and the lower forming dies waiting for hot press forming are moved to the position under the hot press mechanism, so that the hot press forming work can be continued; and the previous plate can be cooled, shaped and taken out, so that the overall working efficiency is improved.

Description

Technical Field

[0001] The invention belongs to the technical field of acrylic sheet processing, and in particular relates to a hot pressing forming device for acrylic sheet. Background Art

[0002] Acrylic sheet belongs to the class of polyacrylates, commonly known as specially treated organic glass. In the application industry, the raw materials of acrylic generally appear in the form of particles, plates, pipes, etc. Acrylic is also known as specially treated organic glass, which is a replacement product of organic glass. Acrylic sheet can be perfectly combined with aluminum-plastic plate profiles, advanced screen printing, etc. to meet the needs of merchants. Acrylic blister is the best outdoor advertising form to improve the grade of business stores and unify the corporate image. In addition, acrylic is also used to make light boxes, etc. As a new type of sheet, acrylic sheet gradually plays an important role in people's daily life. With the development and progress of acrylic sheet production technology, acrylic sheet has gradually developed from general flat panels to various structures in shape, structure, and appearance.

[0003] Acrylic sheets are formed by hot pressing molds. However, in the process of hot pressing the acrylic sheets by existing hot pressing molding equipment, after the sheets are hot pressed and formed, it is necessary to wait for the sheets to cool and set. The existing cooling method is generally natural cooling, and the cooling efficiency is low. At the same time, during the cooling process, the hot pressing molding device cannot perform hot pressing molding on the next acrylic sheet, and the work efficiency is low. In addition, the cooled sheets are generally attached to the surface of the lower mold, which makes it inconvenient for the staff to perform operations such as clamping the sheets, which affects the removal work.

[0004] Therefore, we propose a hot pressing forming device for acrylic sheets to solve the above problems. Summary of the invention

[0005] The purpose of the present invention is to solve the problem that in the process of hot press forming of acrylic sheets by existing hot press forming equipment, after the sheet is hot press formed, it is necessary to wait for the sheet to cool and shape, and the existing cooling method is generally natural cooling, and the cooling efficiency is low. At the same time, during the cooling process, the hot press forming device cannot perform hot press forming on the next acrylic sheet, and the work efficiency is low. Moreover, the cooled sheet is generally attached to the surface of the lower mold, which makes it inconvenient for the staff to perform operations such as clamping the sheet, affecting the removal work. A hot press forming device for acrylic sheets is proposed.

[0006] The objective of the present invention can be achieved through the following technical scheme: it comprises a base, the upper surface of the base is fixedly connected with a top plate through a supporting column, a lower mold moving mechanism is arranged inside the base, the lower mold moving mechanism comprises a two-way screw, and the two-way screw is rotatably installed inside the base, the surface of the two-way screw is movably connected with a moving seat through a slider, the upper end of the moving seat passes through the top of the base and is provided with a moving plate, lower forming molds are arranged on the left and right sides of the upper surface of the moving plate, side through grooves are opened on the front and rear sides of the two lower forming molds, a movable limiting plate is inserted in the upper end of the side through grooves, a connecting rod is arranged on the end of the lower surface of the movable limiting plate away from the lower forming mold, fixed plates are arranged at the front and rear ends of the upper surface of the base, and a movable track is opened inside the upper end of the fixed plate, and the lower end of the connecting rod is slidably installed in the inside of the movable track.

[0007] As a preferred embodiment of the present invention, telescopic rods are provided on the front and rear outer walls of the lower molding mold, and the other ends of the four telescopic rods are respectively connected to the side walls of the four connecting rods. The movable track is arc-shaped, and the middle part of the movable track is close to the lower molding mold, and the two ends are far away from the lower molding mold.

[0008] As a preferred embodiment of the present invention, a driving mechanism is arranged inside the base, and the driving mechanism includes a stepping motor, and the power output end of the stepping motor is transmission-connected with a rotating shaft, and an intermittent gear 1 is arranged on the circumferential surface on the right side of the rotating shaft, and the upper and lower sides of the intermittent gear 1 are respectively meshed and connected with a driven gear 2 and a driven gear 1, and the driven gear 2 is arranged on the circumferential surface of the right end of the bidirectional lead screw, and a rotating rod 1 is arranged in the middle of the driven gear 1, and the left end of the rotating rod 1 is transmission-connected with a worm 1 through a belt transmission device, the rear side of the worm 1 is meshed and connected with a worm wheel 1, a worm 2 is arranged in the middle of the worm wheel 1, and the front of the upper end of the worm 2 is meshed and connected with a worm wheel 2.

[0009] As a preferred embodiment of the present invention, a material ejection mechanism is provided on the left side of the worm gear 2, and the material ejection mechanism includes a rotating rod 2, and the rotating rod 2 is rotatably installed inside the base, the worm gear 2 is arranged on the circumferential surface of the right end of the rotating rod 2, and the circumferential surfaces on the left and right sides of the rotating rod 2 are provided with intermittent gears 2, and the two intermittent gears 2 are meshed and connected with hollow tooth plates, and the lower ends of the hollow tooth plates are fixedly connected with hollow lifting plates through connecting plates, and the upper ends of the two hollow tooth plates and the upper ends of the two hollow lifting plates are provided with lifting push plates, and the inner bottom of the base is provided with fixing rods, and four fixing rods are provided, the two rear fixing rods both penetrate the connecting plate and are respectively inserted into the inside of the two hollow tooth plates, and the two front fixing rods both penetrate the connecting plate and are respectively inserted into the inside of the two hollow lifting plates.

[0010] As a preferred embodiment of the present invention, ejector plates are provided inside the front and rear sides of the two lower molding dies, and the ejector plates are slidably installed inside the side through grooves, the lower ends of the ejector plates respectively penetrate the upper ends of the movable plate and the base and extend to the inside of the base, an insert block is provided on the lower surface of the ejector plate, and a groove matching the insert block is provided in the middle of the upper end of the lifting push plate, and the two left-side insert blocks are respectively inserted into the inside of the two left-side grooves.

[0011] As a preferred embodiment of the present invention, a movable groove is opened inside the upper end of the base, the lower end of the ejection plate is movably installed inside the movable groove, and clamping blocks are provided on the front and rear sides of the lower end of the ejection plate, and the lower surface of the clamping block is movably installed inside the movable groove through a ball bearing.

[0012] As a preferred embodiment of the present invention, a hot pressing mechanism is arranged inside the top plate, and the hot pressing mechanism includes a lifting cylinder, and the lifting cylinder is arranged in the middle of the upper surface of the top plate, the lower end of the lifting cylinder passes through the top plate and is connected to an upper hot pressing mold, and positioning rods are arranged at the four corners of the upper surface of the upper hot pressing mold, and the upper end of the positioning rods passes through the top plate.

[0013] As a preferred embodiment of the present invention, a rapid cooling mechanism is provided on the left and right sides of the base, the rapid cooling mechanism includes an air pump, and the air pump is arranged inside the base, an exhaust pipe is provided on the right side of the air pump, and two plug-in tubes of the exhaust pipe are provided, which are respectively located at the left and right ends of the upper surface of the base, and are fixed above the base by fixing blocks, and sealing rings are provided on the circumferential outer surfaces of the exhaust ports of the two exhaust pipes, an exhaust pipe is provided on the left side of the air pump, and the left end of the exhaust pipe passes through the left side of the base.

[0014] As a preferred embodiment of the present invention, cooling channels are provided inside the two lower molding dies, an air inlet is provided at the upper end of the side where the two groups of cooling channels are close to each other, an air outlet is provided at the side where the two groups of cooling channels are away from each other, and the air outlet matches the air outlet of the exhaust pipe, and the air outlet of the exhaust pipe on the right side is inserted into the inside of the air outlet on the right side.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] (1) By setting up a lower mold moving mechanism, after a group of acrylic sheets are hot-pressed, the lower mold moving mechanism can drive the two groups of lower forming molds to move, move the formed lower forming molds to the side, and move the lower forming molds waiting for hot-pressing to the bottom of the hot-pressing mechanism, so that the previous sheet can be cooled, shaped and taken out while the hot-pressing work continues, thereby improving the overall work efficiency;

[0017] (2) Through the material ejection mechanism and the side through grooves on the side wall of the lower mold, after the plate is cooled and shaped and needs to be taken out, the lifting and pushing plate moves upward to push the ejection plate upward, thereby ejecting the formed plate inside the lower forming mold out of the lower forming mold, avoiding the formed plate and the mold from being too closely attached to affect the material removal, making the plate removal more convenient and quick;

[0018] (3) By setting up a rapid cooling mechanism, the temperature inside the lower forming mold can be quickly cooled, thereby making the cooling and shaping efficiency of the plate higher, further improving work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to facilitate understanding by those skilled in the art, the present invention is further described below with reference to the accompanying drawings.

[0020] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention;

[0021] Figure 2 It is a front cutaway perspective view of the present invention;

[0022] Figure 3 It is a left cutaway perspective view of the present invention;

[0023] Figure 4 It is a right cutaway perspective view of the present invention;

[0024] Figure 5 For the present invention Figure 4 A magnified view of the structure at center A;

[0025] Figure 6 It is a schematic diagram of the local structure of the present invention.

[0026] In the figure: 1, base; 2, top plate; 3, support column; 4, hot pressing mechanism; 401, lifting cylinder; 402, upper hot pressing mold; 403, positioning rod; 5, driving mechanism; 501, stepping motor; 502, rotating shaft; 503, intermittent gear 1; 504, driven gear 1; 505, rotating rod 1; 506, belt transmission device; 507, worm 1; 508, worm wheel 1; 509, worm 2; 510, worm wheel 2; 511, driven gear 2; 6, lower mold moving mechanism; 601, two-way screw; 602, moving seat; 603, moving plate; 604, lower molding mold; 605, side through groove; 606, movable Movable limit plate; 607, connecting rod; 608, fixed plate; 609, moving track; 7, material ejection mechanism; 701, rotating rod 2; 702, intermittent gear 2; 703, hollow tooth plate; 704, connecting plate; 705, hollow lifting plate; 706, lifting push plate; 707, fixed rod; 8, rapid cooling mechanism; 801, air pump; 802, exhaust pipe; 803, sealing ring; 804, exhaust pipe; 805, fixed block; 9, ejection plate; 10, moving groove; 11, block; 12, ball; 13, plug-in block; 14, groove; 15, telescopic rod; 16, cooling channel; 17, air inlet; 18, air outlet. DETAILED DESCRIPTION

[0027] The technical solution of the present invention will be clearly and completely described below in conjunction with the embodiments. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than 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.

[0028] Example:

[0029] See also Figure 1 - Figure 6 As shown, a hot pressing forming device for acrylic sheet material comprises a base 1, the upper surface of the base 1 is fixedly connected to a top plate 2 through a support column 3, a hot pressing mechanism 4 is arranged inside the top plate 2, the hot pressing mechanism 4 comprises a lifting cylinder 401, and the lifting cylinder 401 is arranged in the middle of the upper surface of the top plate 2, the lower end of the lifting cylinder 401 passes through the top plate 2 and is connected to an upper hot pressing mold 402, and positioning rods 403 are arranged at the four corners of the upper surface of the upper hot pressing mold 402, and the upper ends of the positioning rods 403 pass through the top plate 2, and the arrangement of the positioning rods 403 can limit the upper hot pressing mold 402, so that the lifting cylinder 401 drives the upper hot pressing mold 402 to rise and fall more stably, and avoids the upper hot pressing mold 402 from deflecting and affecting the hot pressing forming quality;

[0030] The base 1 is provided with a driving mechanism 5, which includes a stepping motor 501, which is arranged inside the base 1 through a motor seat, and a power output end of the stepping motor 501 is connected to a rotating shaft 502 through a coupling transmission, and the other end of the rotating shaft 502 is rotatably mounted on the inner wall of the base 1, and an intermittent gear 1 503 is provided on the circumferential surface of the right side of the rotating shaft 502, and the upper and lower sides of the intermittent gear 1 503 are respectively meshed and connected with a driven gear 2 511 and A driven gear 504 is provided with a rotating rod 505 in the middle of the driven gear 504, a worm 507 is connected to the left end of the rotating rod 505 through a belt transmission device 506, a worm wheel 508 is meshedly connected to the rear side of the worm 507, a worm 509 is provided in the middle of the worm wheel 508, the rotating rod 505, the worm 507 and the worm 509 are all rotatably mounted inside the base 1, and a worm wheel 510 is meshedly connected to the front of the upper end of the worm 509;

[0031] It should be noted that when the gear teeth of the intermittent gear 1 503 mesh with the driven gear 1 504, it will not mesh with the driven gear 2 511; when the gear teeth of the intermittent gear 1 503 mesh with the driven gear 2 511, it will not mesh with the driven gear 1 504, and the belt transmission device 506 includes.

[0032] A lower mold moving mechanism 6 is arranged inside the base 1, and the lower mold moving mechanism 6 includes a bidirectional lead screw 601, and the bidirectional lead screw 601 is rotatably installed inside the base 1, and a driven gear 511 is arranged on the circumferential surface of the right end of the bidirectional lead screw 601, and the surface of the bidirectional lead screw 601 is movably connected with a moving seat 602 through a slider, and the upper end of the moving seat 602 passes through the top of the base 1 and is provided with a moving plate 603, and lower molding molds 604 are arranged on the left and right sides of the upper surface of the moving plate 603, and side through grooves 605 are opened on the front and rear sides of the two lower molding molds 604, and a movable limiting plate 606 is inserted inside the upper end of the side through groove 605, and a connecting rod 607 is arranged on the end of the lower surface of the movable limiting plate 606 away from the lower molding mold 604, and a fixed plate 608 is arranged on the front and rear ends of the upper surface of the base 1, and the upper end of the fixed plate 608 is provided with a connecting rod 607. A movable track 609 is provided, and the lower end of the connecting rod 607 is slidably installed inside the movable track 609. Telescopic rods 15 are provided on the outer walls of the front and rear sides of the lower molding mold 604, and the other ends of the four telescopic rods 15 are respectively connected to the side walls of the four connecting rods 607. The setting of the telescopic rods 15 enables the connecting rod 607 to be connected to the lower molding mold 604 through the telescopic rods 15 without affecting the horizontal movement of the connecting rod 607. The movable track 609 is an arc-shaped design, and the middle part of the movable track 609 is close to the lower molding mold 604, and the two ends are far away from the lower molding mold 604. Ejector plates 9 are provided inside the front and rear sides of the two lower molding molds 604, and the ejector plates 9 are slidably installed inside the side through grooves 605. The lower ends of the ejector plates 9 respectively penetrate the upper ends of the movable plate 603 and the base 1 and extend to the inside of the base 1.

[0033] The arc-shaped design of the movable track 609 enables the connecting rod 607 to drive the movable limiting plate 606 to move out of the side slot 605 and away from the lower forming mold 604 when the connecting rod 607 moves to the end of the movable track 609, so that the ejection plate 9 can move upward smoothly, and eject the plate that has been cooled and formed inside the lower forming mold 604 out of the lower forming mold 604, which is convenient for removing the plate. When the connecting rod 607 moves to the middle of the movable track 609, the connecting rod 607 drives the movable limiting plate 606 to insert into the side slot 605 to close the side slot 605, thereby preventing the plate from being partially pressed into the side slot 605 during hot pressing and affecting the subsequent discharging work.

[0034] It should be noted that a movable groove is provided on the upper surface of the base 1, so that when the two-way screw 601 rotates, it can drive the moving seat 602 to move horizontally left and right smoothly. When the intermittent gear 1 503 rotates one circle, it can drive the driven gear 2 511 and the two-way screw 601 to rotate. When the moving seat 602 is at the right end of the two-way screw 601, the moving seat 602 can move to the left end of the two-way screw 601. Similarly, when the moving seat 602 is at the left end of the two-way screw 601, the moving seat 602 can move to the right end of the two-way screw 601, thereby realizing the alternating operation of the two lower molding molds 604, reducing the interruption time when the plate is continuously working, and improving the overall work efficiency.

[0035] A material ejection mechanism 7 is arranged on the left side of the worm gear 2 510, and the material ejection mechanism 7 includes a rotating rod 2 701, and the rotating rod 2 701 is rotatably installed inside the base 1, the worm gear 2 510 is arranged on the circumferential surface of the right end of the rotating rod 2 701, and the circumferential surfaces on both sides of the rotating rod 2 701 are arranged with intermittent gears 2 702, and the two intermittent gears 2 702 are meshed and connected with hollow tooth plates 703, and the lower end of the hollow tooth plate 703 is fixedly connected with a hollow lifting plate 705 through a connecting plate 704, and the upper ends of the two hollow tooth plates 703 and the upper ends of the two hollow lifting plates 705 are connected to each other. The ends are provided with lifting push plates 706, the inner bottom of the base 1 is provided with fixing rods 707, and there are four fixing rods 707. The two rear fixing rods 707 penetrate the connecting plate 704 and are respectively plugged into the inside of the two hollow tooth plates 703. The two front fixing rods 707 penetrate the connecting plate 704 and are respectively plugged into the inside of the two hollow lifting plates 705. The lower surface of the ejection plate 9 is provided with an insert block 13. The middle of the upper end of the lifting push plate 706 is provided with a groove 14 matching the insert block 13. The two left insert blocks 13 are respectively plugged into the inside of the two left grooves 14.

[0036] Among them, when the intermittent gear 1 503 is meshed with the driven gear 1 504 once until it disengages, it drives the intermittent gear 2 702 to rotate one circle through the worm gear transmission, so that the hollow tooth plate 703 drives the lifting push plate 706 to reciprocate up and down once, thereby smoothly ejecting the plate inside the lower molding mold 604 after cooling and molding is completed, which is convenient for material removal and can also be reset to wait for the next work.

[0037] It should be noted that the arrangement of the plug block 13 at the bottom of the ejector plate 9 and the groove 14 at the top of the lifting push plate 706 enables the plug block 13 at the bottom of the ejector plate 9 to be smoothly inserted into the interior of the groove 14 when the lower molding mold 604 drives the ejector plate 9 to move horizontally left and right, and connects the lifting push plate 706 with the ejector plate 9, so that the lifting push plate 706 can push the ejector plate 9 upward, and then the ejector plate 9 can eject the molded sheet inside the lower molding mold 604, thereby facilitating the removal of the sheet. It should also be noted that the ejector plate 9 is a counterweight plate. When the ejector plate 9 is not subjected to the upward thrust of the lifting push plate 706, the ejector plate 9 will move downward under its own weight and fall back into the interior of the lower molding mold 604, so as to avoid the upper end of the ejector plate 9 protruding from the lower molding mold 604, resulting in the inability of the movable limiting plate 606 to be inserted into the upper end of the side through groove 605.

[0038] A movable groove 10 is provided inside the upper end of the base 1, and the lower end of the ejector plate 9 is movably installed inside the movable groove 10. Blocks 11 are provided on both the front and rear sides of the lower end of the ejector plate 9, and the lower surface of the block 11 is movably installed inside the movable groove 10 through a ball 12. The setting of the movable groove 10 provides movable space for the ejector plate 9 and the block 11, so that the ejector plate 9 and the block 11 can smoothly move horizontally left and right or vertically up and down inside the movable groove 10. The setting of the block 11 can limit the ejector plate 9 to prevent the ejector plate 9 from moving upward too much and affecting the downward reset effect. The setting of the ball 12 reduces the friction between the ejector plate 9 and the block 11 and the base 1 when the movable seat 602 drives the lower molding mold 604 to move horizontally left and right, so that the ejector plate 9 and the block 11 can stably move horizontally left and right.

[0039] The left and right sides of the base 1 are provided with a rapid cooling mechanism 8, the rapid cooling mechanism 8 includes an air pump 801, and the air pump 801 is arranged inside the base 1, an air extraction pipe 802 is arranged on the right side of the air pump 801, and two plug-in pipes of the air extraction pipe 802 are arranged, which are respectively located at the left and right ends of the upper surface of the base 1, and are fixed above the base 1 through a fixing block 805, and the circumferential outer surfaces of the air extraction ports of the two air extraction pipes 802 are provided with sealing rings 803, an exhaust pipe 804 is arranged on the left side of the air pump 801, and the left end of the exhaust pipe 804 passes through the left side of the base 1, and the interiors of the two lower molding molds 604 are provided with cooling channels 16, and the two sets of cooling channels 16 are provided. An air inlet 17 is provided at the upper end of the side where the two cooling channels 16 are close to each other, and an air outlet 18 is provided at the side where the two groups of cooling channels 16 are away from each other, and the air outlet 18 matches the air outlet of the exhaust pipe 802, and the air outlet of the right exhaust pipe 802 is inserted into the inside of the right air outlet 18; the setting of the sealing ring 803, when the air outlet of the exhaust pipe 802 is inserted into the air outlet 18 of the lower molding mold 604, the sealing ring 803 can improve the sealing effect of the connection, so that when the air pump 801 is working, the exhaust pipe 802 can more smoothly draw the air inside the lower molding mold 604, so that the inside of the lower molding mold 604 is cooled quickly, thereby improving the cooling and molding speed.

[0040] When the present invention is used, firstly, the acrylic sheet to be hot-pressed is placed on the lower molding die 604 on the left side, at which time the lower molding die 604 on the left side is directly below the upper hot-pressing die 402, and then the lifting cylinder 401 is started, and the lifting cylinder 401 drives the upper hot-pressing die 402 to move downward and cooperate with the lower molding die 604 to perform hot-pressing. At the same time, during hot-pressing, another sheet to be hot-pressed is placed on the lower molding die 604 on the right side. After the hot-pressing is completed, the lifting cylinder 401 drives the upper hot-pressing die 402 to reset upward;

[0041] When the bottom of the upper hot pressing mold 402 moves to the top of the lower molding mold 604, the stepper motor 501 is started, and the stepper motor 501 drives the rotating shaft 502 and the intermittent gear 1 503 to rotate. The rotation of the intermittent gear 1 503 will first mesh with the driven gear 2 511, thereby driving the driven gear 2 511 and the bidirectional lead screw 601 to rotate, and then the moving seat 602, the moving plate 603 and the two lower molding molds 604 move horizontally to the left. When the moving seat 602 moves to the left end, the intermittent gear 1 503 is no longer meshed with the driven gear 2 511, and at this time, the gear teeth of the intermittent gear 1 503 have not yet meshed with the driven gear 1 504. At this time, the lower molding mold 604 on the right side moves with the unhot pressed plate. To the right below the upper hot pressing mold 402, the left lower molding mold 604 moves to the left end with the hot-pressed plate, and after the left lower molding mold 604 moves to the left end, the left exhaust pipe 802 is just plugged into the inside of the air outlet 18 on the left side of the lower molding mold 604, and at the same time, the movable limit plates 606 on the front and rear sides of the left lower molding mold 604 move in the front and rear directions respectively, move out from the inside of the side through groove 605, and move away from the lower molding mold 604, and then start the lifting cylinder 401 and the air pump 801, the lifting cylinder 401 works to drive the upper hot pressing mold 402 to perform hot pressing on the right lower molding mold 604, and the air pump 801 works to make the inside of the left lower molding mold 604 quickly cool and shape;

[0042] After the left lower molding die 604 is cooled and finalized, the stepper motor 501 is started again, and the stepper motor 501 drives the rotating shaft 502 and the intermittent gear 1 503 to continue to rotate, so that the intermittent gear 1 503 drives the driven gear 1 504, the rotating rod 1 505, the belt transmission device 506, the worm 1 507, the worm wheel 1 508, the worm 2 509, the worm wheel 2 510 and the rotating rod 2 701 to rotate, and the rotating rod 2 701 rotates to drive the intermittent gear 2 702 on its surface to rotate. During the period from engagement to disengagement between the intermittent gear 1 503 and the driven gear 1 504, the driven gear 1 504 can be driven to rotate one circle, and then the intermittent gear 2 702 will rotate one circle. When the intermittent gear 2 702 rotates, it will first drive the hollow tooth plate 703 to move vertically upward, and then rotate one circle. Continuing to rotate after 180 degrees will drive the hollow tooth plate 703 to move vertically downward. After the intermittent gear 2 702 rotates one circle, the hollow tooth plate 703 will perform a vertical reciprocating movement. When the hollow tooth plate 703 moves vertically upward, the hollow tooth plate 703 will drive the lifting push plate 706 to move upward, thereby pushing the ejection plate 9 to move upward, and then ejecting the plate cooled and formed inside the left lower molding mold 604 out of the lower molding mold 604, so as to facilitate the material removal of the plate. At the same time, the hot pressing molding of the lower molding mold 604 on the right is completed. At this time, the intermittent gear 1 503 continues to rotate, and it will first disengage from the meshing state with the driven gear 1 504, and then mesh with the driven gear 2 511, thereby driving the moving seat 602 to move horizontally to the right, realizing the alternating operation of the two lower molding molds 604.

[0043] The preferred embodiments of the present invention disclosed above are only used to help explain the present invention. The preferred embodiments do not describe all the details in detail, nor do they limit the invention to only specific implementation methods. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the present invention, so that those skilled in the art can understand and use the present invention well. The present invention is limited only by the claims and their full scope and equivalents.

Claims

1. A hot pressing forming device for acrylic sheet material, comprising a base (1), the upper surface of the base (1) being fixedly connected to a top plate (2) via a support column (3), characterized in that: A lower mold moving mechanism (6) is arranged inside the base (1), and the lower mold moving mechanism (6) includes a bidirectional lead screw (601), and the bidirectional lead screw (601) is rotatably mounted inside the base (1), and the surface of the bidirectional lead screw (601) is movably connected to a moving seat (602) via a slider, and the upper end of the moving seat (602) passes through the top of the base (1) and is provided with a moving plate (603), and lower molding dies (604) are arranged on both left and right sides of the upper surface of the moving plate (603), and the two lower molding dies Side through grooves (605) are provided on both the front and rear sides of (604), and a movable limiting plate (606) is inserted into the upper end of the side through groove (605). A connecting rod (607) is provided at one end of the lower surface of the movable limiting plate (606) away from the lower molding mold (604). Fixed plates (608) are provided at both the front and rear ends of the upper surface of the base (1), and a movable track (609) is provided inside the upper end of the fixed plate (608), and the lower end of the connecting rod (607) is slidably installed inside the movable track (609).

2. A hot pressing forming device for acrylic sheet material according to claim 1, characterized in that: Telescopic rods (15) are provided on the outer walls on both the front and rear sides of the lower molding mold (604), and the other ends of the four telescopic rods (15) are respectively connected to the side walls of the four connecting rods (607). The movable track (609) is designed to be arc-shaped, and the middle part of the movable track (609) is close to the lower molding mold (604), and the two ends are far away from the lower molding mold (604).

3. The hot pressing forming device for acrylic sheet material according to claim 1, characterized in that: A driving mechanism (5) is arranged inside the base (1), and the driving mechanism (5) comprises a stepping motor (501), the power output end of the stepping motor (501) is drivingly connected to a rotating shaft (502), an intermittent gear 1 (503) is arranged on the circumferential surface of the right side of the rotating shaft (502), and the upper and lower sides of the intermittent gear 1 (503) are respectively meshedly connected to a driven gear 2 (511) and a driven gear 1 (504), and the driven gear 2 (511) is arranged on The circumferential surface of the right end of the bidirectional lead screw (601) is provided with a rotating rod 1 (505) in the middle of the driven gear 1 (504), the left end of the rotating rod 1 (505) is connected to a worm 1 (507) through a belt transmission device (506), the rear side of the worm 1 (507) is meshedly connected to a worm wheel 1 (508), the middle of the worm wheel 1 (508) is provided with a worm 2 (509), and the front of the upper end of the worm 2 (509) is meshedly connected to a worm wheel 2 (510).

4. A hot pressing forming device for acrylic sheet material according to claim 3, characterized in that: A material ejection mechanism (7) is arranged on the left side of the worm gear 2 (510), and the material ejection mechanism (7) includes a rotating rod 2 (701), and the rotating rod 2 (701) is rotatably mounted inside the base (1), the worm gear 2 (510) is arranged on the circumferential surface of the right end of the rotating rod 2 (701), and the circumferential surfaces on both sides of the rotating rod 2 (701) are both provided with intermittent gears 2 (702), and the two intermittent gears 2 (702) are both meshedly connected with a hollow tooth plate (703), and the lower end of the hollow tooth plate (703) is fixedly connected via a connecting plate (704). A hollow lifting plate (705) is provided, and the upper ends of the two hollow tooth plates (703) and the upper ends of the two hollow lifting plates (705) are both provided with lifting push plates (706). The inner bottom of the base (1) is provided with a fixing rod (707), and four fixing rods (707) are provided. The two rear fixing rods (707) both penetrate the connecting plate (704) and are respectively plugged into the inside of the two hollow tooth plates (703), and the two front fixing rods (707) both penetrate the connecting plate (704) and are respectively plugged into the inside of the two hollow lifting plates (705).

5. A hot pressing forming device for acrylic sheet material according to claim 4, characterized in that: Ejector plates (9) are provided inside the front and rear sides of the two lower molding dies (604), and the ejector plates (9) are slidably installed inside the side through grooves (605). The lower ends of the ejector plates (9) respectively penetrate the upper ends of the movable plate (603) and the base (1) and extend to the inside of the base (1). The lower surface of the ejector plates (9) is provided with an insert block (13). A groove (14) matching the insert block (13) is provided in the middle of the upper end of the lifting push plate (706), and the two left insert blocks (13) are respectively inserted into the inside of the two left grooves (14).

6. A hot pressing forming device for acrylic sheet material according to claim 5, characterized in that: A movable groove (10) is provided inside the upper end of the base (1), and the lower end of the ejection plate (9) is movably mounted inside the movable groove (10). Blocks (11) are provided on both the front and rear sides of the lower end of the ejection plate (9), and the lower surface of the block (11) is movably mounted inside the movable groove (10) via a ball bearing (12).

7. The hot pressing forming device for acrylic sheet material according to claim 1, characterized in that: A hot pressing mechanism (4) is arranged inside the top plate (2), and the hot pressing mechanism (4) comprises a lifting cylinder (401), and the lifting cylinder (401) is arranged in the middle of the upper surface of the top plate (2), the lower end of the lifting cylinder (401) passes through the top plate (2) and is connected to an upper hot pressing mold (402), and positioning rods (403) are arranged at the four corners of the upper surface of the upper hot pressing mold (402), and the upper ends of the positioning rods (403) pass through the top plate (2).

8. The hot pressing forming device for acrylic sheet according to claim 1, characterized in that: A rapid cooling mechanism (8) is arranged on the left and right sides of the base (1), and the rapid cooling mechanism (8) includes an air pump (801), and the air pump (801) is arranged inside the base (1). An exhaust pipe (802) is arranged on the right side of the air pump (801), and two plug-in pipes of the exhaust pipe (802) are arranged, which are respectively located at the left and right ends of the upper surface of the base (1) and are fixed above the base (1) through a fixing block (805). The circumferential outer surfaces of the exhaust ports of the two exhaust pipes (802) are both provided with sealing rings (803). An exhaust pipe (804) is arranged on the left side of the air pump (801), and the left end of the exhaust pipe (804) passes through the left side of the base (1).

9. A hot pressing forming device for acrylic sheet material according to claim 8, characterized in that: The two lower molding dies (604) are each provided with a cooling channel (16) inside, an air inlet (17) is provided at the upper end of the side where the two groups of cooling channels (16) are close to each other, and an air outlet (18) is provided at the side where the two groups of cooling channels (16) are away from each other, and the air outlet (18) matches the air outlet of the air exhaust pipe (802), and the air outlet of the right air exhaust pipe (802) is plugged into the inside of the right air outlet (18).

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