Automatic conveying device for hot pressing production line of plastic sheets

Abstract

The present invention discloses an automatic conveying device for a hot pressing production line of plastic sheets, which relates to the technical field of conveying devices, including a hot press and a sheet body. Conveyor belts are arranged on both sides of the hot press, the left conveyor belt is the feeding place of the sheet body, and the right conveyor belt is the discharging place of the sheet body. A transfer carriage is arranged on one side of the right conveyor belt, and an automatic lifting component is arranged in the transfer carriage. A cooling component for cooling the sheet body after hot pressing is arranged on the inner wall of the transfer carriage. The automatic conveying device for the hot pressing production line of plastic sheets, the clamping and positioning mechanism ensures that the sheet body is always in the center position during the stacking process, effectively prevents the collapse of the sheet due to position offset, protects the integrity of the sheet and the safety of the production line, realizes the accurate stacking of the sheet body through precise mechanical structure and control logic, ensures the neatness and stability of the stacking, and is beneficial to the subsequent packaging, transportation and other links.

Description

Technical Field

[0001] The invention relates to the technical field of conveying devices, in particular to an automatic conveying device for a hot pressing production line of a plastic plate. Background Art

[0002] In the plastic sheet manufacturing industry, the hot pressing production line is the core link in producing high-quality plastic sheets. The production line usually includes key components such as hot pressing machines, conveying devices, stacking devices and cooling systems, aiming to achieve continuous and automated production of plastic sheets. However, the existing automatic conveying devices of the hot pressing production line for plastic sheets still have some deficiencies and defects in technology and performance, which are specifically manifested in the following aspects:

[0003] At present, the automatic conveying devices of the hot pressing production lines of plastic sheets on the market mostly use traditional mechanical transmission methods, such as chains, belts, etc., to realize the conveying of sheets. These devices usually rely on manual or semi-automatic methods to clamp, position and stack the sheets, which are complicated to operate and inefficient. At the same time, in the cooling process, fixed cooling devices are mostly used to cool the sheets, and the cooling effect is uneven, and it is difficult to adapt to the cooling needs of sheets of different specifications.

[0004] Disadvantages of the prior art

[0005] Low production efficiency: Traditional conveying devices rely on manual operation or simple mechanical transmission, which makes it difficult to achieve fast and accurate sheet material conveying and stacking, resulting in low production efficiency and unable to meet the needs of large-scale production;

[0006] Poor stacking safety: Manual or semi-automatic stacking methods cannot ensure the stability and centering of the plates during the stacking process, and collapse is likely to occur, which not only affects the smooth operation of the production line, but may also cause damage to the plates and safety accidents. Summary of the invention

[0007] In view of the deficiencies in the prior art, the present invention provides an automatic conveying device for a hot pressing production line of plastic plates, which solves the technical problems mentioned in the background technology.

[0008] To achieve the above purpose, the present invention is implemented through the following technical solutions: an automatic conveying device for a hot pressing production line of plastic plates, comprising a hot press and a plate body, conveyor belts are arranged on both sides of the hot press, the left conveyor belt is the feeding place of the plate body, and the right conveyor belt is the discharging place of the plate body, a transfer carriage is arranged on one side of the right conveyor belt, four groups of positioning blocks are arranged at the bottom of the inner wall of the transfer carriage, an automatic lifting component for transferring the hot-pressed plate to the transfer carriage is arranged in the transfer carriage, and a cooling component for cooling the hot-pressed plate body is arranged on the inner wall of the transfer carriage;

[0009] The automatic lifting assembly includes a fixing frame fixedly installed on both sides of the inner wall of the transfer compartment, a threaded rod is arranged on the fixing frame, a driving motor is arranged on the top of the threaded rod, a lifting plate is threadedly connected to the threaded rod, a positioning shaft is fixedly installed on the lifting plate, a receiving rod is rotatably connected on both sides of the positioning shaft, a placing platform is arranged on the inner end of the receiving rod, a first damping spring is arranged between the receiving rod and the lifting plate, a pressure rod is arranged on the inner end of the lifting plate and is located at the top position of the outer side of the receiving rod, and adjusting parts for controlling the position of the pressure rod are arranged on both sides of the lifting plate.

[0010] As a further preferred embodiment of the present technical solution, rectangular grooves are provided on both sides of the lifting plate, rectangular blocks are slidably connected in the rectangular grooves, and the pressure rods are installed on the inner ends of the rectangular blocks, and guide wheels are provided on the outer ends of the rectangular blocks.

[0011] As a further preferred embodiment of the present technical solution, the adjusting member includes an adjusting plate slidably mounted on the outer end of the lifting plate, an inclined surface is provided at the bottom of the adjusting plate, and the outer wall of the guide wheel slides in contact with the inclined surface, and a supporting plate is fixedly connected to the inner end of the adjusting plate, and the supporting plate and the placing table are in the same horizontal position.

[0012] As a further preferred embodiment of the present technical solution, a cylinder is fixedly installed on the outer wall of the lifting plate, an output end of the cylinder is fixedly connected to a connecting plate, and the connecting plate is fixedly connected to the adjusting plate.

[0013] As a further preferred embodiment of the present technical solution, the cooling assembly includes positioning rods fixedly installed on both sides of the inner wall of the transfer compartment, a U-shaped frame is slidably connected to the positioning rods, a second damping spring for pushing the U-shaped frame to move outward is arranged on the positioning rods, and a cooling component for cooling the main body of the sheet after hot pressing is arranged on the top inner side of the U-shaped frame.

[0014] As a further optimization of the present technical solution, a first mounting plate is fixedly installed on the right side of the inner wall of the transfer compartment, a first movable frame is slidably connected to the top of the first mounting plate, a baffle is fixedly connected to the inner side of the first movable frame for blocking and positioning the plate body moved onto the placement table, a positioning plate is fixedly connected to the top of the first movable frame, a first connecting frame is fixedly installed on the positioning plate, and a first sliding groove is provided on the first connecting frame.

[0015] As a further preferred embodiment of the present technical solution, a reciprocating screw rod threadedly connected to the first movable frame is arranged on the first mounting plate, a servo motor fixedly mounted on the outer wall of the transfer compartment is arranged at one end of the reciprocating screw rod, and the two reciprocating screw rods are connected by a synchronous pulley.

[0016] As a further preferred embodiment of the present technical solution, a second mounting plate is fixedly installed on both sides of the inner wall of the transfer compartment, a second mobile frame is slidably connected to the second mounting plate, a second connecting frame and a linkage plate are fixedly connected to the second mobile frame, a second sliding groove is provided on the second connecting frame, and the other end of the linkage plate is fixedly connected to the outer wall of the U-shaped frame;

[0017] A support plate fixedly mounted on the transfer carriage is provided at the outer end of the first mounting plate, a V-shaped rod is rotatably connected to the support plate, and sliding shafts slidably mounted in the first slide groove and the second slide groove are fixedly connected at both ends of the V-shaped rod.

[0018] As a further preferred embodiment of the present technical solution, the cooling component includes a cooling box fixedly mounted on a U-shaped frame, a plurality of ventilation holes are arranged in the left-right direction on the bottom side of the cooling box, a fan is arranged on the top of the cooling box, a telescopic tube is arranged at the input end of the fan, a fixed tube fixedly mounted on the top of the transfer carriage is arranged at the other end of the telescopic tube, and a conveying pipe connected to the cooling box is arranged at the output end of the fan.

[0019] As a further preferred embodiment of the present technical solution, a wind shield is provided on the inner wall of the cooling box. The wind shield extends obliquely to the right from bottom to top, and a plurality of connecting holes are provided on the wind shield. There are multiple wind shields arranged in the left and right directions. Among any two adjacent wind shields on the left and right, the aperture of any connecting hole on the wind shield on the right side is larger than the aperture of any connecting hole on the wind shield on the left side.

[0020] Compared with the prior art, it has the following beneficial effects:

[0021] Ensure smooth production: Through precise mechanical action design, such as threaded rods driving the lifting plate to move, cylinders driving the adjustment plate and the abutment plate for clamping and positioning, etc., the smooth transmission of the plate body during the production process is ensured, avoiding production stagnation or delays caused by improper manual operation.

[0022] Improve stacking safety: The clamping and positioning mechanism ensures that the main body of the sheet is always in the center during the stacking process, effectively preventing the collapse of the sheet due to position deviation, and protecting the integrity of the sheet and the safety of the production line.

[0023] Improve stacking accuracy: Through precise mechanical structure and control logic, accurate stacking of the board body is achieved, ensuring the neatness and stability of the stacking, which is beneficial to subsequent packaging, transportation and other links.

[0024] Improve production efficiency: Automated operation reduces waiting time and manual operation time in the production process, significantly increasing the stacking speed of the board body and thus improving overall production efficiency.

[0025] Guarantee product quality: Through precise control and stable mechanical action, damage to the plates caused by uneven force or collision during the stacking process is avoided, ensuring the quality and consistency of the products.

[0026] Improve cooling efficiency: Through the reciprocating motion and V-shaped rod design, the cooling element can move back and forth above the main body of the plate, ensuring that the cooling air can evenly and fully cover the main surface of the plate, thereby improving the cooling efficiency and shortening the cooling time.

[0027] Optimize cooling effect: The main body of the plate undergoes a process from slow cooling to rapid cooling in the transfer compartment. The gradually increasing amount of cooling can effectively avoid the internal stress of the plate caused by rapid cooling, ensuring the quality stability of the plate. At the same time, the airflow flows on the surface of the plate, which can more fully take away the heat and improve the overall cooling effect.

[0028] Enhanced cooling uniformity: After entering the cooling box, the cooling air is blocked and distributed by the wind shield, making the cooling air more evenly distributed in the front and rear directions, avoiding local overheating or overcooling, and ensuring the overall cooling uniformity of the plate.

[0029] High degree of automation: The entire cooling process is realized through automated mechanical components such as servo motors and reciprocating screws, which reduces manual intervention, improves the degree of automation of the production line, and reduces operational difficulty and labor intensity.

[0030] Improve product quality: Through the precisely controlled cooling process, the residual heat of the plate after hot pressing can be effectively reduced, the risk of plate deformation and cracking can be reduced, and the yield rate and quality stability of the product can be improved. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0032] Figure 2 It is a schematic diagram of the structure inside the transfer compartment of the present invention;

[0033] Figure 3 It is a structural schematic diagram of the automatic lifting component in the present invention;

[0034] Figure 4 It is a schematic diagram of the structure of the fixing frame, the threaded rod, the driving motor and the lifting plate in the present invention;

[0035] Figure 5 It is a structural schematic diagram of the lifting plate, the receiving rod, the placing table, the first damping spring, and the pressing rod in the present invention;

[0036] Figure 6 It is a structural schematic diagram of the adjusting member in the present invention;

[0037] Figure 7 It is a schematic diagram of the structure of the cooling assembly in the present invention;

[0038] Figure 8 It is a schematic diagram of the structure of the cooling element in the present invention.

[0039] In the figure: 1, hot press; 2, conveyor belt; 3, sheet body; 4, transfer carriage; 5, automatic lifting assembly; 6, cooling assembly; 51, fixed frame; 52, threaded rod; 53, driving motor; 54, lifting plate; 55, positioning shaft; 56, receiving rod; 57, placing table; 58, first damping spring; 59, pressure rod; 510, rectangular block; 511, guide wheel; 512, adjustment plate; 513, abutment plate; 514, inclined surface;

[0040] 515, cylinder; 516, connecting plate; 61, positioning rod; 62, U-shaped frame; 63, second damping spring;

[0041] 64. Cooling component; 65. First mounting plate; 66. First movable frame; 67. Baffle; 68. Servo motor; 69. Reciprocating screw; 610. Positioning plate; 611. First connecting frame; 612. Support plate; 613. V-shaped rod; 614. Sliding shaft; 615. Second mounting plate; 616. Second movable frame; 617. Second connecting frame; 618. Linkage plate; 619. Cooling box; 620. Fan; 621. Telescopic tube; 622. Fixed tube; 623. Delivery tube; 624. Wind shield; 625. Connecting hole; 626. Ventilation hole. DETAILED DESCRIPTION

[0042] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the drawings of the specification. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0043] Embodiment 1: Combination Figure 1-Figure 8 As shown, the present invention provides a technical solution: an automatic conveying device for a hot pressing production line of a plastic sheet, comprising a hot press machine 1 and a sheet body 3, the hot press machine 1 is used to hot press the sheet body 3, conveyor belts 2 are arranged on both sides of the hot press machine 1, the left conveyor belt 2 is the feeding place of the sheet body 3, the right conveyor belt 2 is the discharging place of the sheet body 3, a transfer carriage 4 is arranged on one side of the right conveyor belt 2, four groups of positioning blocks are arranged at the bottom of the inner wall of the transfer carriage 4, an automatic lifting component 5 for transferring the hot-pressed sheet to the transfer carriage 4 is arranged in the transfer carriage 4, and a cooling component 6 for cooling the hot-pressed sheet body 3 is arranged on the inner wall of the transfer carriage 4;

[0044] The automatic lifting assembly 5 includes a fixing frame 51 fixedly mounted on both sides of the inner wall of the transfer compartment 4, a threaded rod 52 is arranged on the fixing frame 51, a driving motor 53 is arranged on the top of the threaded rod 52, and the driving motor 53 is fixedly mounted on the top of the transfer compartment 4, a lifting plate 54 is threadedly connected to the threaded rod 52, a positioning shaft 55 is fixedly mounted on the lifting plate 54, a receiving rod 56 is rotatably connected on both sides of the positioning shaft 55, a placing table 57 is arranged on the inner side end of the receiving rod 56, and the receiving rod 56 and the placing table 57 can be provided with multiple groups according to actual conditions to ensure that the plate body 3 can be accurately moved to the placing table 57, a first damping spring 58 is arranged between the outer side end of the receiving rod 56 and the lifting plate 54, a pressure rod 59 located at the outer top position of the receiving rod 56 is arranged on the inner side end of the lifting plate 54, and adjusting members for controlling the position of the pressure rod 59 are arranged on both sides of the lifting plate 54;

[0045] Rectangular grooves are provided on both sides of the lifting plate 54, and rectangular blocks 510 are slidably connected in the rectangular grooves. The pressure rod 59 is installed on the inner side of the rectangular block 510, and the outer side of the rectangular block 510 is provided with a guide wheel 511.

[0046] The adjusting member comprises an adjusting plate 512 slidably mounted on the outer end of the lifting plate 54, an inclined surface 514 is arranged at the bottom of the adjusting plate 512, and the outer wall of the guide wheel 511 slides in contact with the inclined surface 514, a supporting plate 513 is fixedly connected to the inner end of the adjusting plate 512, and the supporting plate 513 and the placing table 57 are at the same horizontal position, so that the supporting plate 513 can clamp and align the plate body 3 located on the placing table 57, when the adjusting plate (512) cooperates with the guide wheel (511) to drive the rectangular block (510) to be located at the bottom end position in the rectangular groove, the rectangular block (510) cooperates with the pressure rod (59) to drive the receiving rod (56) and the placing table (57) to rotate to a horizontal position;

[0047] A cylinder 515 is fixedly mounted on the outer wall of the lifting plate 54 , and a connecting plate 516 is fixedly connected to the output end of the cylinder 515 , and the connecting plate 516 is fixedly connected to the adjusting plate 512 .

[0048] In the embodiment of the present invention, by starting the driving motor 53, the threaded rod 52 is driven to rotate synchronously. The rotational movement of the threaded rod 52 will cause the placement table 57 on the lifting plate 54 to move along the guide rail to the horizontal position of the right conveyor belt 2. The function of the right conveyor belt 2 is to transport the plate body 3 that has been hot-pressed to the placement table 57 in the transfer carriage 4. In this process, both ends of the plate body 3 will be placed on the placement table 57 to ensure its stability. Then, the cylinder 515 is started, and the connecting plate 516 is cooperated to drive the adjustment plate 512 and the abutment plate 513 to move inward, so that the abutment plate 513 can clamp and position the plate body 3 placed on the placement table 57. The purpose of this is to ensure that the plate body 3 is in a centered position, thereby facilitating subsequent stacking processing, avoiding the collapse of the plate body 3 during the stacking process, ensuring the smooth progress of the entire production process, and protecting the plate body 3 from being damaged.

[0049] After completing the clamping and positioning of the plate body 3, the driving motor 53 is started again to drive the lifting plate 54, the receiving rod 56, the placing table 57 and the plate body 3 to move downward together. When the plate body 3 moves to the positioning block or the position above the plate body 3 on the positioning block, the cylinder 515 is started again to cooperate with the connecting plate 516 to drive the adjusting plate 512 and the abutting plate 513 to move outward. When the inclined surface 514 and the guide wheel 511 are fitted and slid, under the elastic force of the first damping spring 58, the receiving rod 56 is pushed to rotate on the positioning shaft 55. During the rotation process, the receiving rod 56 will push the pressing rod 59, the rectangular block 510, and the guide wheel 511 to move upward to ensure that the guide wheel 511 always fits and slides with the outer wall of the inclined surface 514. At the same time, the receiving rod 56 drives the placing table 57 to rotate downward, so that the placing table 57 places the plate body 3 on the positioning block or on the plate body 3 on the positioning block, thereby realizing the sequential stacking of the plate bodies 3.

[0050] After the stacking process is completed, the drive motor 53 is started again to drive the threaded rod 52 to rotate, and the threaded rod 52 then drives the lifting plate 54, the receiving rod 56, and the placement table 57 to move upward and reset. At the same time, the cylinder 515 is started to cooperate with the connecting plate 516 to drive the adjustment plate 512 and the abutment plate 513 to move inward, and the adjustment plate 512 cooperates with the inclined surface 514, the guide wheel 511, the rectangular block 510, and the pressure rod 59 to move downward. The pressure rod 59 drives the receiving rod 56 to rotate and compresses the first damping spring 58, so that the placement table 57 is at the same horizontal position as the conveyor belt 2 on the right, which is convenient for the next stacking and placement of the plate body 3. Through this series of precise mechanical actions, the smooth transmission and safe stacking of the plate body 3 in the production process are ensured, thereby improving production efficiency and product quality.

[0051] Embodiment 2: Combination Figure 7 , Figure 8 As shown, on the basis of the first embodiment, the cooling assembly 6 includes positioning rods 61 fixedly mounted on both sides of the inner wall of the transfer compartment 4, a U-shaped frame 62 is slidably connected to the positioning rods 61, a second damping spring 63 for pushing the U-shaped frame 62 to move outward is arranged on the positioning rods 61, and a cooling member 64 for cooling the plate body 3 after hot pressing is arranged on the top of the inner side of the U-shaped frame 62;

[0052] A first mounting plate 65 is fixedly mounted on the right side of the inner wall of the transfer carriage 4, a first moving frame 66 is slidably connected to the top of the first mounting plate 65, a baffle 67 for blocking and positioning the plate body 3 moved onto the placement table 57 is fixedly connected to the inner side of the first moving frame 66, a positioning plate 610 is fixedly connected to the top of the first moving frame 66, a first connecting frame 611 is fixedly mounted on the positioning plate 610, and a first sliding groove is provided on the first connecting frame 611;

[0053] A reciprocating screw rod 69 threadedly connected to the first moving frame 66 is disposed on the first mounting plate 65, a servo motor 68 fixedly mounted on the outer wall of the transfer carriage 4 is disposed at one end of the reciprocating screw rod 69, and the two reciprocating screw rods 69 are connected by a synchronous pulley for transmission;

[0054] A second mounting plate 615 is fixedly mounted on both sides of the inner wall of the transfer carriage 4, a second mobile frame 616 is slidably connected to the second mounting plate 615, a second connecting frame 617 and a linkage plate 618 are fixedly connected to the second mobile frame 616, a second sliding groove is provided on the second connecting frame 617, and the other end of the linkage plate 618 is fixedly connected to the outer wall of the U-shaped frame 62;

[0055] The outer end of the first mounting plate 65 is provided with a support plate 612 fixedly mounted on the transfer carriage 4, the support plate 612 is rotatably connected with a V-shaped rod 613, and both ends of the V-shaped rod 613 are fixedly connected with a slide shaft 614 slidably mounted in the first slide groove and the second slide groove;

[0056] The cooling element 64 includes a cooling box 619 fixedly mounted on the U-shaped frame 62, a plurality of ventilation holes 626 are arranged in the left-right direction on the bottom side of the cooling box 619, a fan 620 is arranged on the top of the cooling box 619, a telescopic tube 621 is arranged at the input end of the fan 620, and the telescopic tube 621 can be telescoped as the cooling box 619 moves, and a fixed tube 622 fixedly mounted on the top of the transfer carriage 4 is arranged at the other end of the telescopic tube 621, and a conveying pipe 623 connected to the cooling box 619 is arranged at the output end of the fan 620;

[0057] The inner wall of the cooling box 619 is provided with a windshield 624, which extends obliquely to the right from bottom to top, and is provided with a plurality of connecting holes 625. The windshield 624 is arranged in a plurality in the left-right direction, and in any two adjacent windshields 624 on the left and right, the aperture of any connecting hole 625 on the right windshield 624 is larger than the aperture of any connecting hole 625 on the left windshield 624;

[0058] In any two adjacent wind shields 624 on the left and right, all the connecting holes 625 on one wind shield 624 are staggered with each other in the left-right direction. When the cooling air passes through one wind shield 624 and reaches the next wind shield 624, since the connecting holes 625 on the two wind shields 624 are staggered with each other in the left-right direction, the phenomenon of the cooling air directly passing through the two connecting holes 625 is reduced, thereby improving the flow blocking and wind uniformity effect of the wind shield 624 on the cooling air; the larger the aperture of the connecting hole 625, the greater the cooling air passing through, thereby ensuring that the cooling air can be blown to the next wind shield 624.

[0059] In the embodiment of the present invention, when the sheet body 3 is moved to one side of the placement table 57 and contacts the baffle 67, the sheet body 3 has completely entered the transfer carriage 4. At this time, the servo motor 68 is started, which drives the reciprocating screw 69 to rotate synchronously. The reciprocating screw 69 drives another reciprocating screw 69 to rotate synchronously through the synchronous pulley to ensure that the rotation of the two screws is consistent. As the reciprocating screw 69 rotates, the first moving frame 66 reciprocates on the first mounting plate 65. Note that when the first mounting plate 65 reciprocates, it drives the baffle 67 to reciprocate. When the baffle 67 moves to one side of the sheet body 3, the farthest distance the baffle 67 moves is to contact the outer wall of the sheet body 3, but it will not push the sheet body 3 to move. The first moving frame 66 6 drives the positioning plate 610 and the first connecting frame 611 to move back and forth together, so that the first connecting frame 611 cooperates with the sliding shaft 614 to push the V-shaped rod 613 to move back and forth on the support plate 612, and the V-shaped rod 613 cooperates with the sliding shaft 614 at the other end to push the second connecting frame 617 and the second moving frame 616 to move back and forth on the second mounting plate 615, and the second moving frame 616 cooperates with the linkage plate 618 to push the U-shaped frame 62 and the cooling member 64 to move back and forth on the positioning rod 61. At the same time, the elastic force of the second damping spring 63 cooperates with the U-shaped frame 62 to move back and forth on the positioning rod 61, so that the cooling member 64 moves back and forth above the plate body 3, so that the cooling member 64 delivers cooling air to the surface of the plate body 3 after hot pressing, and performs cooling and temperature reduction treatment;

[0060] The conveyor belt 2 on the right conveys the hot-pressed plate body 3 to the right, and the fan 620 cooperates with the telescopic tube 621 and the fixed tube 622 to suck in the external cold air, and supplies air to the inner cavity of the cooling box 619 through the conveying tube 623. The cooling air flows to the left and flows into the surface of the hot-pressed plate body 3 from the ventilation hole 626 during the flow, so as to cool the hot-pressed plate body 3. In this process, the cooling air on the surface of the plate body 3 becomes smaller as it moves to the left. That is to say, as it is conveyed to the right, the cold air gradually increases. The plate body 3 undergoes a process from slow cooling to rapid cooling in the transfer carriage 4, which can realize the gradual cooling of the plate body 3. At the same time, the airflow flows on the plate body 3, which more fully takes away the heat on the surface of the plate body 3, thereby improving both the cooling effect and the cooling efficiency.

[0061] After the cooling air enters the cooling box 619, it first hits the wind shield 624. Part of the cooling air is blown into the ventilation hole 626 along the inclined guide of the cooling air, and the other part of the cooling air passes through the connecting hole 625 and enters the next wind shield 624. In this way, the wind shield 624 can enhance the effect of gradual cooling of the plate body 3, and after blocking the cooling air, the cooling air can be distributed more evenly in the front and rear directions.

[0062] Working principle of automatic conveying device of plastic sheet hot pressing production line:

[0063] Step 1: The left conveyor belt 2 conveys the plastic sheet body 3 to be hot-pressed into the hot press 1, and the hot press 1 performs hot-pressing treatment on the sheet body 3, and then the right conveyor belt 2 conveys the hot-pressed sheet body 3 to the placement table 57 in the transfer carriage 4;

[0064] Step 2: When the plate body 3 on the placement table 57 is moved to one side and contacts the baffle 67, the servo motor 68 is turned on to drive the reciprocating screw 69 to rotate synchronously, so that when the reciprocating screw 69 rotates, it drives the first moving frame 66 located on the first mounting plate 65 to reciprocate, and the first moving frame 66 drives the positioning plate 610 and the first connecting frame 611 to reciprocate, so that the first connecting frame 611 cooperates with the sliding shaft 614 to drive the V-shaped rod 613 located on the support plate 612 to reciprocate, so that the V-shaped rod 613 cooperates with the sliding shaft at the other end. 614 drives the second connecting frame 617 and the second moving frame 616 on the second mounting plate 615 to move back and forth, so that the second moving frame 616 cooperates with the linkage plate 618 to drive the U-shaped frame 62 and the cooling member 64 on the positioning rod 61 to move back and forth, and the elastic force of the second damping spring 63 cooperates with the U-shaped frame 62 on the positioning rod 61 to move back and forth, so that the cooling member 64 is located above the plate body 3 and moves back and forth, so that the cooling member 64 delivers cooling air to the surface of the plate body 3 after hot pressing to cool it down;

[0065] Step 3: Turn on the cylinder 515, and cooperate with the connecting plate 516 to drive the adjusting plate 512 and the abutting plate 513 to move inward, so that the abutting plate 513 clamps and positions the plate body 3 on the placing table 57, so that the plate body 3 is in the middle position.

[0066] Then, the driving motor 53 is turned on to drive the lifting plate 54, the receiving rod 56, the placing table 57 and the plate body 3 to move downward. When the plate body 3 moves to the positioning block or the position above the plate body 3 on the positioning block, the cylinder 515 is turned on to cooperate with the connecting plate 516 to drive the adjusting plate 512 and the abutting plate 513 to move outward. When the inclined surface 514 and the guide wheel 511 are fitted and slid, the receiving rod 56 is pushed to rotate on the positioning shaft 55 under the elastic force of the first damping spring 58, so that the receiving rod 56 pushes the pressure rod 59, the rectangular block 510 and the guide wheel 511 to move upward during rotation, so that the guide wheel 511 always fits and slides with the outer wall of the inclined surface 514. At the same time, the receiving rod 56 drives the placing table 57 to rotate downward, so that the placing table 57 places the plate body 3 on the positioning block or on the plate body 3 on the positioning block, so that the plate bodies 3 are stacked in sequence, and then the transfer carriage 4 is moved to complete the hot pressing and transfer of the plate body 3.

[0067] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An automatic conveying device for a hot pressing production line of plastic sheets, comprising a hot pressing machine (1) and a sheet body (3), characterized in that: Conveyor belts (2) are arranged on both sides of the hot press (1); the left conveyor belt (2) is a feeding place for the plate body (3); the right conveyor belt (2) is a discharging place for the plate body (3); a transfer carriage (4) is arranged on one side of the right conveyor belt (2); four groups of positioning blocks are arranged at the bottom of the inner wall of the transfer carriage (4); an automatic lifting component (5) for transferring the hot-pressed plate into the transfer carriage (4) is arranged in the transfer carriage (4); and a cooling component (6) for cooling the hot-pressed plate body (3) is arranged on the inner wall of the transfer carriage (4); The automatic lifting assembly (5) comprises a fixing frame (51) fixedly mounted on both sides of the inner wall of the transfer carriage (4); a threaded rod (52) is arranged on the fixing frame (51); a driving motor (53) is arranged on the top of the threaded rod (52); a lifting plate (54) is threadedly connected to the threaded rod (52); a positioning shaft (55) is fixedly mounted on the lifting plate (54); receiving rods (56) are rotatably connected to both sides of the positioning shaft (55); a placing platform (57) is arranged at the inner side end of the receiving rod (56); a first damping spring (58) is arranged between the receiving rod (56) and the lifting plate (54); a pressure rod (59) is arranged at the outer top position of the receiving rod (56) at the inner side end of the lifting plate (54); and adjusting members for controlling the position of the pressure rod (59) are arranged on both sides of the lifting plate (54); Rectangular grooves are provided on both sides of the lifting plate (54), a rectangular block (510) is slidably connected in the rectangular groove, a pressure rod (59) is installed at the inner end of the rectangular block (510), and a guide wheel (511) is provided at the outer end of the rectangular block (510); The adjusting member comprises an adjusting plate (512) slidably mounted on the outer end of the lifting plate (54); an inclined surface (514) is provided at the bottom of the adjusting plate (512); an outer wall of the guide wheel (511) slides in contact with the inclined surface (514); an abutting plate (513) is fixedly connected to the inner end of the adjusting plate (512); and the abutting plate (513) and the placing table (57) are at the same horizontal position; A cylinder (515) is fixedly mounted on the outer wall of the lifting plate (54); an output end of the cylinder (515) is fixedly connected to a connecting plate (516), and the connecting plate (516) is fixedly connected to the adjusting plate (512).

2. An automatic conveying device for a hot pressing production line of plastic sheets according to claim 1, characterized in that: The cooling assembly (6) comprises positioning rods (61) fixedly mounted on both sides of the inner wall of the transfer carriage (4); a U-shaped frame (62) is slidably connected to the positioning rods (61); a second damping spring (63) is provided on the positioning rods (61) for pushing the U-shaped frame (62) to move outward; and a cooling member (64) is provided on the top of the inner side of the U-shaped frame (62) for cooling the plate body (3) after hot pressing.

3. An automatic conveying device for a hot pressing production line of plastic sheets according to claim 2, characterized in that: A first mounting plate (65) is fixedly mounted on the right side of the inner wall of the transfer carriage (4); a first moving frame (66) is slidably connected to the top of the first mounting plate (65); a baffle (67) is fixedly connected to the inner side of the first moving frame (66) for blocking and positioning the plate body (3) moved onto the placement table (57); a positioning plate (610) is fixedly connected to the top of the first moving frame (66); a first connecting frame (611) is fixedly mounted on the positioning plate (610); and a first sliding groove is provided on the first connecting frame (611).

4. An automatic conveying device for a hot pressing production line of plastic sheets according to claim 3, characterized in that: A reciprocating screw rod (69) threadably connected to the first moving frame (66) is disposed on the first mounting plate (65); a servo motor (68) fixedly mounted on the outer wall of the transfer carriage (4) is disposed at one end of the reciprocating screw rod (69); and the two reciprocating screw rods (69) are connected in transmission via a synchronous pulley.

5. An automatic conveying device for a hot pressing production line of plastic sheets according to claim 4, characterized in that: A second mounting plate (615) is fixedly mounted on both sides of the inner wall of the transfer carriage (4); a second movable frame (616) is slidably connected to the second mounting plate (615); a second connecting frame (617) and a linkage plate (618) are fixedly connected to the second movable frame (616); a second sliding groove is provided on the second connecting frame (617); and the other end of the linkage plate (618) is fixedly connected to the outer wall of the U-shaped frame (62); A support plate (612) fixedly mounted on the transfer carriage (4) is provided at the outer end of the first mounting plate (65), a V-shaped rod (613) is rotatably connected to the support plate (612), and both ends of the V-shaped rod (613) are fixedly connected to sliding shafts (614) slidably mounted in the first slide groove and the second slide groove.

6. An automatic conveying device for a hot pressing production line of plastic sheets according to claim 5, characterized in that: The cooling element (64) comprises a cooling box (619) fixedly mounted on the U-shaped frame (62); a plurality of ventilation holes (626) are arranged in a left-right direction on the bottom side of the cooling box (619); a fan (620) is arranged on the top of the cooling box (619); a telescopic tube (621) is arranged at the input end of the fan (620); a fixed tube (622) fixedly mounted on the top of the transfer carriage (4) is arranged at the other end of the telescopic tube (621); and a conveying tube (623) connected to the cooling box (619) is arranged at the output end of the fan (620).

7. An automatic conveying device for a hot pressing production line of plastic sheets according to claim 6, characterized in that: The inner wall of the cooling box (619) is provided with a windshield (624), which extends obliquely to the right from bottom to top, and is provided with a plurality of connecting holes (625). The windshield (624) is arranged in a plurality of directions along the left and right directions, and in any two adjacent windshields (624) on the left and right, the aperture of any connecting hole (625) on the right windshield (624) is larger than the aperture of any connecting hole (625) on the left windshield (624).

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