Automatic feeding and discharging device for plywood hot pressing

Abstract

The utility model discloses a plywood hot-pressing automatic feeding and discharging device which comprises a plywood hot press, a feeding and discharging mechanism, a feeding mechanism and a discharging mechanism, the feeding and discharging mechanism comprises a feeding end conveying mechanism, a discharging end conveying mechanism, a discharging end conveying mechanism and a discharging end conveying mechanism, and the feeding end conveying mechanism is arranged beside the feeding end of the plywood hot press and used for bearing plates transferred by the feeding mechanism; the pushing mechanism is arranged beside the feeding end conveying mechanism and used for pushing the plates on the feeding end conveying mechanism into the plywood hot press and pushing the plates in the plywood hot press out; the discharging end conveying mechanism is arranged beside the discharging end of the plywood hot press and used for receiving the plates pushed out of the plywood hot press and conveying the plates to the discharging mechanism. Automatic feeding and discharging of the plywood are achieved, automatic overturning of the plywood is achieved so that hot pressing of the two sides can be achieved, the automation degree is high, the labor intensity is low, the production efficiency is high, and the plywood is not prone to being damaged.

Description

Technical Field

[0001] The utility model relates to the technical field of plate processing, in particular to an automatic loading and unloading device for hot pressing of plywood. Background Art

[0002] Plywood plays a very important role in industrial production. Its wide range of applications and superior performance make it an indispensable building material and manufacturing raw material in many fields. Plywood is prepared by hot pressing with a plywood hot press. The existing plywood hot pressing process still uses manual loading and unloading, which has many disadvantages, mainly including high labor intensity and low production efficiency. In addition, plywood is made of layers of thin boards. During the hot pressing process, due to the structure of the plywood itself, manual loading and unloading is easy to damage the plywood, which is time-consuming and labor-intensive, greatly increasing the operating costs and risks of the enterprise. Utility Model Content

[0003] In view of the above shortcomings, the utility model provides an automatic loading and unloading device for hot pressing of plywood, which can solve the problems of high labor intensity, low production efficiency and easy damage to plywood caused by manual loading and unloading during hot pressing of plywood.

[0004] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0005] A plywood hot press automatic loading and unloading device includes a plywood hot press, and also includes a feeding and unloading mechanism for feeding and unloading plates in and out of the plywood hot press, a feeding mechanism for transferring plates to the feeding and unloading mechanism, and a unloading mechanism for transferring plates from the feeding and unloading mechanism; wherein the feeding and unloading mechanism includes:

[0006] A feeding end conveying mechanism, which is arranged beside the feeding end of the plywood hot press and is used to receive the boards transferred by the feeding mechanism;

[0007] A pushing mechanism, which is arranged beside the feed end conveying mechanism and is used to push the sheet material on the feed end conveying mechanism into the plywood hot press and push out the sheet material in the plywood hot press;

[0008] The material discharging end conveying mechanism is arranged beside the material handling end of the plywood hot press and is used for receiving the plates pushed out from the plywood hot press and conveying the plates to the material discharging mechanism.

[0009] Furthermore, the feeding mechanism comprises:

[0010] A receiving frame, which is arranged beside the conveying mechanism at the discharge end and is used to receive the plates delivered by the conveying mechanism at the discharge end, and a plurality of receiving rods arranged side by side in a transverse direction are fixedly arranged on the top of the receiving frame;

[0011] The unloading belt machine includes a conveying belt, and the conveying belt is evenly provided with a plurality of transverse plates along its extension direction. The transverse plates are provided with a plurality of transversely arranged unloading rods. When the unloading rods are driven by the conveying belt, they can pass through the plurality of receiving rods from bottom to top, and the unloading rods and the receiving rods are staggered.

[0012] Furthermore, a slow-drop frame is arranged between the material rack and the unloading belt conveyor, and multiple rows of first rollers are inclined on the top of the slow-drop frame, and the multiple rows of first rollers are gradually inclined downward toward the material rack. The unloading rod can pass through the multiple rows of first rollers of the slow-drop frame from top to bottom when it is driven by the conveyor belt, and the unloading rod is staggered with the multiple rows of first rollers.

[0013] Furthermore, a second roller is provided on the top of the receiving frame at a position close to the discharging end conveying mechanism, and an upwardly tilted limiting portion is provided at the end of the receiving rod away from the discharging end conveying mechanism.

[0014] Furthermore, a limiting piece is provided on the material discharge rod, and when the material discharge rod is erected upward, the limiting piece is located on the side of the material discharge rod facing the conveying mechanism at the discharge end.

[0015] Further, the feed end conveying mechanism comprises at least one row of third rollers extending toward the feed end of the plywood hot press;

[0016] The pushing mechanism includes a pushing frame and a first linear driving mechanism for driving the pushing frame to move closer to or away from the plywood hot press, wherein the pushing frame is higher than the third roller so that when passing through the third roller, the sheet material on the third roller can be pushed into the plywood hot press or the sheet material in the plywood hot press can be pushed to the discharge end conveying mechanism;

[0017] The discharging end conveying mechanism includes a discharging end frame, a rotating rod, a first motor and a rotating disk. There are two first motors, which are arranged up and down on the discharging end frame. There are two rotating rods, one end of the two rotating rods are respectively fixedly arranged on the output shaft of the first motor in a one-to-one correspondence, and the other end is rotatably arranged on the discharging end frame. The two rotating rods are horizontally and arranged up and down. There are multiple rotating disks, which are respectively fixedly arranged on the two rotating rods.

[0018] Furthermore, screws are rotatably provided on both sides of the discharging end frame, and two third sliders are provided on each of the screws. The two third sliders on the same screw are provided with internal threads with opposite rotation directions and are installed on the screw through threads. Connecting arms are rotatably provided on the upper and lower parts of each of the third sliders, and the upper rotating rod is rotatably connected to the ends of the upper connecting arms of the two third sliders on the same screw, and the lower rotating rod is rotatably connected to the ends of the lower connecting arms of the two sliders on the same screw, and the two first motors are respectively fixedly provided on a connecting arm located at the lower part and a connecting arm located at the lower part.

[0019] Furthermore, the loading mechanism includes a loading rack, a vacuum suction cup arranged on the loading rack, and a second linear drive mechanism for driving the loading rack to move closer to or away from the feed end conveying mechanism, and the vacuum suction cup is higher than the second linear drive mechanism.

[0020] Furthermore, the loading mechanism and the unloading mechanism are both equipped with a material rack for placing plates, the material rack includes a lifting platform and a placing table, the placing table is placed on the top of the lifting platform for placing plates, a vertically arranged top plate is arranged on one side of the top of the placing table, and when the material rack is located on one side of the unloading mechanism, the top plate is located on the side away from the unloading mechanism.

[0021] Furthermore, the lifting platform includes a bottom support, a top support, a cylinder, a scissor mechanism and a connecting piece; the bottom support is located directly below the top support, and longitudinal slide rails are respectively arranged on the sides of the bottom support and the top support facing each other. The scissor mechanism is a double X-shaped scissor unit structure, with a support leg at one end of the bottom being rotatably connected to one end of the bottom support, and a support leg at the other end of the bottom being slidably arranged on the longitudinal slide rail of the bottom support, a support leg at one end of the top being rotatably connected to one end of the top support, and a support leg at the other end of the bottom being slidably arranged on the longitudinal slide rail of the top support, and the upper end of the scissor mechanism The scissor unit of the upper part of the scissor mechanism is provided with a locking portion at a support foot located on one side of the longitudinal slide rail, one end of the cylinder is rotatably connected to one end of the base, and the other end is rotatably connected to one end of the connecting piece, the middle part of the connecting piece is rotatably mounted on the support foot of the scissor unit at the upper part of the scissor mechanism on one side of the longitudinal slide rail, and when the cylinder is extended to a certain length, the connecting piece abuts against one end of the locking portion close to the cylinder, and when the cylinder is retracted to a certain length, the connecting piece abuts against one end of the locking portion away from the cylinder.

[0022] Compared with the prior art, the beneficial effects of the utility model are as follows: in view of the problems of high labor intensity, low production efficiency and easy damage to plywood in manual loading and unloading during hot pressing of plywood, the utility model provides an automatic loading and unloading device for hot pressing of plywood, which realizes automatic loading and unloading of plywood and automatic flipping of the plate to facilitate hot pressing on both sides, has a high degree of automation, low labor intensity, high production efficiency and is not easy to damage the plywood. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings required for describing the embodiments are briefly introduced below.

[0024] Figure 1 It is a structural schematic diagram of the automatic loading and unloading device for hot pressing of plywood of the utility model;

[0025] Figure 2 It is an assembly diagram of the middle material rack, loading mechanism, feeding end conveying mechanism and pushing mechanism of the utility model;

[0026] Figure 3 It is a schematic diagram of the assembly of the discharging end conveying mechanism, the unloading mechanism and the material rack in the utility model;

[0027] Figure 4 It is a structural schematic diagram of the conveying mechanism at the discharge end of the utility model;

[0028] Figure 5 This is a schematic diagram of the structure of the unloading belt conveyor in the utility model;

[0029] Figure 6 It is a schematic diagram of the implementation of the discharging end conveying mechanism, the unloading mechanism and the material rack in the utility model;

[0030] Figure 7 This is a structural schematic diagram of the middle material rack of the utility model from one viewing angle;

[0031] Figure 8 This is a structural schematic diagram of the middle material rack of the utility model from another perspective;

[0032] Fig. 9 It is a schematic diagram of the implementation of the automatic loading and unloading device for hot pressing of plywood in the utility model.

[0033] Among them, the method shown in the figure is:

[0034] 10-Plywood hot press;

[0035] 20-feeding and discharging mechanism; 21-feeding end transmission mechanism; 211-third roller; 212-electric push rod; 213-push plate; 22-pushing mechanism; 221-pushing frame; 222-first linear drive mechanism; 223-second motor; 224-first screw rod; 225-first slider; 23-discharging end transmission mechanism; 231-discharging end frame; 232-rotating rod; 233-first motor; 234-rotating disk; 235-screw rod; 236-third slider; 237-connecting arm;

[0036] 30-feeding mechanism; 31-feeding rack; 32-vacuum suction cup; 33-second linear drive mechanism; 331-third motor; 332-second screw rod; 333-second slider; 334-proximity sensor;

[0037] 40-feeding mechanism; 41-receiving frame; 42-receiving rod; 43-feeding belt conveyor; 44-conveying belt; 45-cross plate; 46-feeding rod; 47-limiting member; 48-slow-down frame; 49-second roller; 410-limiting part; 411-slow-down frame;

[0038] 50-material rack; 51-lifting platform; 511-bottom support; 512-top support; 513-cylinder; 514-scissor mechanism; 515-connecting piece; 516-longitudinal slide rail; 517-stopper; 52-placing table; 521-slot; 522-top plate;

[0039] 60-plate;

[0040] 70-Forklift. DETAILED DESCRIPTION

[0041] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0042] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0043] In the description of the present utility model, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected" and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal connection of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances. In addition, the technical features involved in the different embodiments of the present utility model described below can be combined with each other as long as they do not conflict with each other.

[0044] Please refer to Figures 1 to 9 The preferred embodiment of the utility model provides an automatic loading and unloading device for hot pressing of plywood, including a plywood hot press 10, a feeding and unloading mechanism 20 for feeding and unloading plates in and out of the plywood hot press 10, a loading mechanism 30 for transferring plates to the feeding and unloading mechanism, and a unloading mechanism 40 for transferring plates from the feeding and unloading mechanism 20.

[0045] The plywood hot press machine 10 uses an existing commonly used plywood hot press machine. When a plate is placed in the plywood hot press machine 10, plywood is formed by hot pressing.

[0046] Both the loading mechanism 30 and the unloading mechanism 40 are equipped with a rack 50 for placing the plates, wherein the rack 50 located on one side of the loading mechanism 30 is loaded with plates to be placed in the plywood hot press 10 for hot pressing through the feeding and unloading mechanism 20, and the plates are loaded from the rack 50 through the loading mechanism 30, while the rack 50 located on one side of the unloading mechanism 40 is used to receive the plates after hot pressing from the plywood hot press 10, and the plates are unloaded to the rack 50 through the unloading mechanism 40.

[0047] The material rack 50 includes a lifting platform 51 and a placing platform 52. The placing platform 52 is placed on the top of the lifting platform 51 for placing plates. The placing platform 52 is lifted and lowered by lifting the lifting platform 51 to better accommodate loading or unloading of materials. The lifting platform 51 includes a bottom support 511, a top support 512, a cylinder 513, a scissor mechanism 514 and a connecting piece 515; the bottom support 511 is located directly below the top support 512, and longitudinal slide rails 516 are respectively provided on the sides facing each other of the bottom support 511 and the top support 512, that is, the top of the bottom support 511 and the bottom of the top support 512 are respectively provided with longitudinal slide rails 516, and the scissor mechanism 514 is a double X-shaped scissor unit structure, a support leg at one end of the bottom is rotatably connected to one end of the bottom support 511, and a support leg at the other end of the bottom is slidably arranged on the longitudinal slide rail 516 of the bottom support 511, a support leg at one end of the top is rotatably connected to one end of the top support 512, and a support leg at the other end of the bottom is slidably arranged on the longitudinal slide rail 516 of the top support 512, and the scissor unit at the upper part of the scissor mechanism 514 A stopper 517 is fixedly arranged at the foot located on one side of the longitudinal slide rail 516, one end of the cylinder 513 is rotatably connected to one end of the bottom bracket 511, and the other end is rotatably connected to one end of the connecting member 515, and the middle part of the connecting member 515 is rotatably mounted on the scissor unit of the upper part of the scissor mechanism 514 at the foot located on one side of the longitudinal slide rail 516, and when the cylinder 513 is extended to a certain length, the connecting member 515 abuts against one end of the stopper 517 close to the cylinder 513, at this time, the cylinder 513 cannot be extended any more and the lifting platform 51 rises to the maximum height, and when the cylinder 513 is retracted to a certain length, the connecting member 515 abuts against one end of the stopper 517 away from the cylinder 513, at this time, the cylinder 513 cannot be retracted any more and the lifting platform 51 descends to the maximum height. Through the above structure, the lifting and lowering of the lifting platform 51 can be realized, and the arrangement of the connecting member 515, the stopper 517 and other structures can realize the lifting and lowering of a larger range.

[0048] A slot 521 is provided at the bottom of the placement table 52, so that the fork of the forklift can be placed in the slot 521 to transfer the placement table 52. For example, in some embodiments, the placement table 52 located on one side of the unloading mechanism 40 can be transferred to the lifting platform 51 located on one side of the loading mechanism 30 by a forklift, or the placement table 52 located on one side of the loading mechanism 30 can be transferred to the lifting platform 51 located on one side of the unloading mechanism 40 by a forklift. A vertically arranged top plate 522 is provided on one side of the top of the placement table 52, and when the material rack 50 is located on one side of the unloading mechanism 40, the top plate 522 is located on the side away from the unloading mechanism 40. The top plate 522 plays a role of limiting. On the one hand, it can prevent the material from falling off the placement table 52 when it is transferred from the unloading mechanism 40 to the placement table 52, and on the other hand, it can be tidied by the top plate 522, so as to better realize that the plate is in a relatively tidied state at one side.

[0049] The feeding and discharging mechanism 20 includes a feeding end conveying mechanism 21 , a pushing mechanism 22 and a discharging end conveying mechanism 23 .

[0050] The feed end conveying mechanism 21 is arranged beside the feed end of the plywood hot press 10 to receive the plates transferred by the loading mechanism 30. The pushing mechanism 22 is arranged beside the feed end conveying mechanism 21 to push the plates on the feed end conveying mechanism 21 into the plywood hot press 10 and push out the plates in the plywood hot press 10. The discharge end conveying mechanism 23 is arranged beside the discharge end of the plywood hot press 10 to receive the plates pushed out from the plywood hot press 10 and send the plates to the discharge mechanism 40.

[0051] The feeding end conveying mechanism 21 includes two rows of third rollers 211 extending toward the feeding end of the plywood hot press 10. The plates are placed on the two rows of third rollers 211. The rolling feeding of the plates is realized by the rolling action of the third rollers 211. Electric push rods 212 are fixedly arranged on both sides of the third roller 211. The electric push rods 212 on both sides are arranged opposite to each other and push plates 213 are arranged at the ends of the electric push rods 212. The push plates 213 are driven to move inward by the electric push rods 212 to push the plates on the third roller 211. The plates are not necessarily placed in the middle when placed on the third roller 211. At this time, the plates can be pushed into the plywood hot press 10 from the middle by driving the push plates 213 to move inward by the electric push rods 212 on both sides.

[0052] The pushing mechanism 22 includes a pushing frame 221 and a first linear driving mechanism 222 for driving the pushing frame 221 to move closer to or away from the plywood hot press 10. The pushing frame 221 is higher than the third roller 211 so that when passing through the third roller 211, the plate on the third roller 211 can be pushed into the plywood hot press 10 or the plate in the plywood hot press 10 can be pushed to the discharge end conveying mechanism 23. Since the plate and the third roller 211 are in a rolling relationship, the plate is easily fed into or out of the plywood hot press 10. The first linear driving mechanism 222 can be an electric push rod, a cylinder, an oil cylinder, a linear module, a screw substructure, etc., which can realize linear reciprocating drive. In this preferred embodiment, the first linear drive mechanism 222 adopts a screw pair structure driving method, including a second motor 223, a first screw rod 224 and a first slider 225. The second motor 223, the first screw rod 224 and the first slider 225 are all two sets. The two second motors 223 are fixedly installed on the brackets on both sides. The two first screw rods 224 are rotatably set on the brackets on both sides and are located on the outer sides of the third roller 211. The second motors 223 are respectively connected to the two first screw rods 224 one by one and drive the two first screw rods 224 to rotate. The first slider 225 is respectively provided with a screw thread. The two first sliders 225 are respectively threadedly connected to the two first screw rods 224 one by one, and the two first sliders 225 are respectively slidably set on the slide rails on both sides. The two sides of the push frame 221 are respectively fixedly connected to the two first sliders 225. During implementation, the two second motors 223 are started to drive the two first The screw rod 224 rotates to drive the two first sliders 225 to move towards or away from the plywood hot press 10. At this time, the pushing frame 221 moves towards or away from the plywood hot press 10. When the pushing frame 221 moves towards the plywood hot press 10, the plate placed on the third roller 211 can be pushed into the plywood hot press 10 or the plate in the plywood hot press 10 can be pushed to the discharge end conveying mechanism 23. For example, when the second motor 223 drives the first slider 225 to move forward to the middle position of the first screw rod 224, the pushing frame 221 moves forward to just push the plate into the plywood hot press 10 for hot pressing. When the second motor 223 drives the first slider 225 to continue to move forward, the plate can be pushed out of the plywood hot press 10 and pushed into the discharge end conveying mechanism 23. When the second motor 223 drives the first slider 225 to reset backward, it waits for the next plate to be pushed in and out.

[0053] The discharging end conveying mechanism 23 includes a discharging end frame 231, a rotating rod 232, a first motor 233 and a rotating disk 234. There are two first motors 233, which are arranged up and down on the discharging end frame 231. There are two rotating rods 232. One ends of the two rotating rods 232 are respectively fixedly arranged on the output shaft of the first motor 233 in a one-to-one correspondence, and the other ends are rotatably arranged on the discharging end frame 231. The two rotating rods 232 are horizontally and arranged up and down. There are multiple rotating disks 234, which are respectively fixedly arranged on the two rotating rods 232. The rotating disks 234 are circular disks. The circular disks of the two rotating rods 232 are opposite to each other and form a gap, which is equal to the thickness of the plate. During implementation, the sheet pushed out from the plywood hot press 10 is pushed into the discharge end conveying mechanism 23, and the sheet enters between the turntables 234 of the two rotating rods 232. The two first motors 233 respectively drive the two rotating rods 232 to rotate, thereby driving the turntables 234 to rotate, and the upper turntable 234 rotates counterclockwise and the lower turntable 234 rotates clockwise. Therefore, when the turntable 234 contacts the sheet and the turntable 234 rotates, the sheet can be driven to move away from the plywood hot press 10 to achieve discharge.

[0054] Screws 235 are rotatably provided on both sides of the discharging end frame 231, and two sliders 236 are provided on each screw 235. The two third sliders 236 located on the same screw 235 are provided with internal threads with opposite rotation directions and are installed on the screw 235 through threads. Connecting arms 237 are rotatably provided on the upper and lower parts of each third slider 236, and the upper rotating rod 232 is rotatably connected to the ends of the upper connecting arms 237 of the two third sliders 236 located on the same screw 235, and the lower rotating rod 232 is rotatably connected to the ends of the lower connecting arms 237 of the two third sliders 236 located on the same screw 235. The two first motors 233 are respectively fixedly provided on a connecting arm 237 located at the lower part and fixedly provided on a connecting arm 237 located at the lower part. During implementation, by rotating the screw 235, the two third sliders 236 on the same screw 235 can be driven to move in directions closer to or farther away from each other. When the two third sliders 236 move closer to each other, the distance between the two first motors 233 becomes larger, thereby the distance between the two rotating rods 232 becomes larger, and the distance between the turntables 234 of the two rotating rods 232 becomes larger. On the contrary, when the two third sliders 236 move away from each other, the distance between the two first motors 233 becomes smaller, thereby the distance between the two rotating rods 232 becomes larger, and the distance between the turntables 234 of the two rotating rods 232 becomes smaller. Therefore, by adjusting the distance between the turntables 234 of the two rotating rods 232, the discharge of plates of different thicknesses can be accommodated.

[0055] The feeding mechanism 30 includes a feeding rack 31, a vacuum suction cup 32 disposed on the feeding rack 31, and a second linear drive mechanism 33 for driving the feeding rack 31 to approach or move away from the feeding end conveying mechanism 21, and the vacuum suction cup 32 is higher than the second linear drive mechanism 33. In this exemplary embodiment, a material rack 50 for placing a plate is arranged at the position of the feeding mechanism 30, and the material rack 50 is arranged with a lifting platform 51 that can be raised and lowered, and the lifting platform 51 can be used to lift and lower the plate. At this time, the height of the feeding rack 31 can remain unchanged, and the height of the plate can be adjusted by the rise of the lifting platform 51 to achieve the plate contact with the vacuum suction cup 32 and adsorption by the vacuum suction cup 32. In other embodiments, if the lifting platform 51 and other devices are not configured to achieve the lifting and lowering of the plate, a lifting feeding rack 31 that can be raised and lowered can be arranged to achieve the height adjustment of the vacuum suction cup 32. The vacuum suction cup 32 is equipped with a vacuum generator, a solenoid valve, a hose, etc. to generate negative pressure to achieve the adsorption of the plate. When the vacuum suction cup 32 contacts the plate, the vacuum suction cup 32 achieves the adsorption of the plate through the negative pressure. When the vacuum suction cup 32 contacts the negative pressure, the plate falls off the vacuum suction cup 32. The second linear drive mechanism 33 can be an electric push rod, a cylinder, an oil cylinder, a linear module, a screw pair structure, etc., which can achieve linear reciprocating drive. In this preferred embodiment, the second linear drive mechanism 33 adopts a screw pair structure driving method, including a third motor 331, a second screw rod 332 and a second slider 333. The third motor 331, the second screw rod 332 and the second slider 333 are all two sets. The two third motors 331 are fixedly installed on the brackets on both sides. The two second screw rods 332 are rotatably set on the brackets on both sides and are located on the outer sides of the third roller 211. The third motors 331 are respectively connected to the two second screw rods 332 in a one-to-one correspondence and drive the two second screw rods 332 to rotate. The second sliders 333 are respectively provided with screw threads. The two second sliders 333 are respectively threadedly connected to the two second screw rods 332 in a one-to-one correspondence, and the two second sliders 333 are respectively slidably set On the slide rails on both sides, the two sides of the loading rack 31 are fixedly connected with the two second sliders 333 respectively. When implemented, the two third motors 331 are started to drive the two second screw rods 332 to rotate so as to drive the two second sliders 333 to move closer to or away from the plywood hot press 10, and the loading rack 31 moves closer to or away from the plywood hot press 10. When the loading rack 31 is located above the material rack 50 on one side of the feeding mechanism 30, the vacuum suction cup 32 contacts the plate and absorbs the plate through negative pressure. Then the third motor 331 is started to drive the loading rack 31 to move closer to the plywood hot press 10 and move to the top of the third roller 211. The vacuum suction cup 32 of the loading rack 31 releases the negative pressure, and the plate falls onto the third roller 211 to achieve loading. Proximity sensors 334 can be set on the brackets on both sides to detect whether the plate at the highest position of the material rack 50 is raised to a certain height with the lifting platform 51 and contacts the vacuum suction cup 32 so that it can be absorbed by the vacuum suction cup 32.

[0056] The unloading mechanism 40 includes a receiving frame 41 and an unloading belt conveyor 43. The receiving frame 41 is arranged beside the discharge end conveying mechanism 23 to receive the plates sent by the discharge end conveying mechanism 23. A plurality of receiving rods 42 arranged side by side in a transverse direction are fixedly arranged on the top of the receiving frame 41. The plates pushed out from the plywood hot press 10 are pushed into the discharge end conveying mechanism 23. The plates sent out by the discharge end conveying mechanism 23 enter the receiving frame 41, specifically, enter the plurality of receiving rods 42 arranged side by side in a transverse direction on the receiving frame 41. In order to facilitate the plates to reach the end of the receiving rods 42, the receiving rods 42 can be arranged at an angle. A second roller 49 is arranged on the top of the receiving frame 41 near the discharge end conveying mechanism 23. The second roller 49 can facilitate the rolling of the plates and the discharge end conveying mechanism 23 to facilitate the movement of the plates. The receiving rod 42 is provided with an upwardly tilted limiting portion 410 at the end away from the discharging end conveying mechanism 23. The setting of the limiting portion 410 plays a limiting role. Under the limiting action of the limiting portion 410, the plate entering the receiving rod 42 cannot exceed the end of the receiving rod 42 away from the discharging end conveying mechanism 23, thereby preventing the plate from falling from this end and the plate can be regulated at this location through the limiting portion 410.

[0057] The unloading belt conveyor 43 includes a conveyor belt 44, and the conveyor belt 44 is evenly provided with a plurality of transverse plates 45 along its extension direction. The transverse plates 45 are densely arranged on the conveyor belt 44, and a plurality of transversely arranged unloading rods 46 are arranged on the transverse plates 45. The unloading rods 46 can pass through the plurality of receiving rods 42 from bottom to top when the conveyor belt 44 is driven, and the unloading rods 46 and the receiving rods 42 are staggered. During implementation, the conveyor belt 44 of the unloading belt conveyor 43 is operated, driving the plurality of unloading rods 46 of the transverse plates 45 thereon to pass through the plurality of receiving rods 42 from bottom to top, so that the plates on the plurality of receiving rods 42 can be lifted. When the plates are lifted by the unloading rods 46, they gradually move toward the direction of the transverse plates 45 until the bottom abuts against the transverse plates 45. At this time, the plates are erected and located between the unloading rods 46 of the two transverse plates 45, and then conveyed backward and sent to the material rack 50 located on one side of the unloading mechanism 40, so as to realize unloading. When the sheet is transported backward to the unloading end by the conveyor belt 44, as the unloading rod 46 moves downward, the sheet is turned over to realize unloading. Existing plywood is usually hot-pressed on both sides, so it needs to be turned over after one side is hot-pressed. The unloading mechanism 40 of the utility model can realize unloading by turning over through the cooperation of the receiving frame 41 and the unloading belt conveyor 43. After the sheet is hot-pressed once, it is turned over and placed, so as to realize hot pressing on the other side during the next hot pressing. A limiting member 47 is provided on the unloading rod 46, and when the unloading rod 46 is upright, the limiting member 47 is located on the side of the unloading rod 46 facing the conveying mechanism 23 at the unloading end. By providing the limiting member 47, when the sheet is located between the unloading rods 46 of the two horizontal plates 45, the sheet can be kept in an upright state as much as possible to avoid the sheet shaking to both sides and damaging the sheet.

[0058] A slow-drop frame 411 is arranged between the material rack 50 and the unloading belt conveyor 43. Multiple rows of first rollers 48 are arranged obliquely on the top of the slow-drop frame 411. The multiple rows of first rollers 48 gradually tilt downward toward the material rack 50. The unloading rod 46 can pass through the multiple rows of first rollers 48 of the slow-drop frame 411 from top to bottom when driving with the conveyor belt 44, and the unloading rod 46 and the multiple rows of first rollers 48 are staggered. When the plate passes through the multiple rows of first rollers 48 of the slow-drop frame 411 from top to bottom with the unloading rod 46, it will fall onto the first rollers 48. Since the multiple rows of first rollers 48 gradually tilt downward toward the material rack 50, the plate will slide along with the first rollers 48 toward the material rack 50 and fall onto the placing table 52 of the material rack 50. The placing table 52 gradually moves downward with the lifting platform 51 to keep the uppermost plate on the placing table 52 lower than the first roller 48 so as to be able to receive the plate.

[0059] The following is an exemplary implementation process of the utility model, which can be referred to Fig. 9The sheet 60 to be hot-pressed is placed on the placing table 52 of the material rack 50 located on one side of the feeding mechanism 30. The vacuum suction cup 32 of the feeding mechanism 30 absorbs the uppermost sheet 60. Then the second linear drive mechanism 33 drives the feeding rack 31 and the vacuum suction cup 32 thereon and the sheet 60 to move toward the feeding end conveying mechanism 21 and are located above the third roller 211. The vacuum suction cup 32 releases the negative pressure and the sheet 60 falls onto the third roller 211 and resets to load the next sheet 60. The electric push rods 212 on both sides of the third roller 211 push the sheet 60 to the middle, and the first linear drive mechanism 33 of the pushing mechanism 22 The mechanism 222 starts to push the push frame 221 to move toward the plywood hot press 10 and push the plate 60 into the plywood hot press 10. If the plywood hot press 10 hot presses one plate 60 at a time, the first linear drive mechanism 222 continues to drive the push frame 221 to push the hot pressed plate 60 out of the plywood hot press 10 and send it to the discharge end conveying mechanism 23 after waiting for the plywood hot press 10 to hot press the plate. If the plywood hot press 10 hot presses multiple plates 60 at a time, the first linear drive mechanism 222 drives the push frame 221 to reset and push the next plate 60 into the plywood hot press 10 until the plywood hot press 10 is hot pressed. After the hot pressing of the plywood hot press 10 is completed, the first linear drive mechanism 222 drives the push frame 221 to push the hot pressed sheet 60 out of the plywood hot press 10 and send it to the discharge end conveying mechanism 23. After being pushed out of the plywood hot press 10, the sheet 60 enters the discharge end conveying mechanism 23 and is located between the turntables 234 of the two rotating rods 232. The first motor 233 drives the rotating rod 232 to rotate, thereby driving the turntable 234 to rotate and drive the sheet to move away from the plywood hot press 10 to achieve discharge. The discharged sheet 60 first enters the receiving frame 41 of the unloading mechanism 40, and then enters the receiving rod 41 of the receiving frame 41. 2. Then, the unloading rod 46 of the unloading belt conveyor 43 lifts the plate 60 on the receiving rod 42 when passing through the receiving rod 42. When the plate 60 is lifted by the unloading rod 46, it gradually moves toward the horizontal plate 45 until the bottom abuts against the horizontal plate 45. At this time, the plate is erected and located between the unloading rods 46 of the two horizontal plates 45, and is transported backward and sent to the material rack 50 located on one side of the unloading mechanism 40, so as to realize unloading, and the unloaded plate 60 will be turned over. After turning over, the plate 60 slides through the slow-drop frame 411 to the placement table 52 of the material rack 50 located on one side of the unloading mechanism 40 and is stacked layer by layer. At this time, hot pressing is realized on one side of the plate 60;When the other side needs to be hot-pressed, the stacked plates 60 are transferred to the rack 50 located on one side of the loading mechanism 30 by the forklift 70, specifically, the forklift 70 is inserted into the slot 521 of the placement table 52 to realize the transfer of the placement table 52. At this time, the plates 60 that have been hot-pressed on one side and transferred to the rack 50 located on the side of the loading mechanism 30 can be sent to the feeding and discharging mechanism 20 through the loading mechanism 30 to enter the plywood hot press 10 to enter the hot pressing on the other side. The hot-pressed plates 60 are pushed out and discharged through the feeding and discharging mechanism 20 and the unloading mechanism 40 to realize the hot pressing of both sides of the plates, and then become plywood. ;

[0060] In view of the problems of high labor intensity, low production efficiency and easy damage to plywood during manual loading and unloading during hot pressing of plywood, the utility model provides an automatic loading and unloading device for hot pressing of plywood, which can realize automatic loading and unloading of plywood and automatic flipping of the plate to facilitate hot pressing on both sides, has a high degree of automation, low labor intensity, high production efficiency and is not easy to damage the plywood.

[0061] The utility model of the automatic loading and unloading device for hot pressing of plywood can significantly improve the production efficiency of the machine, reduce the idle time of the machine, and speed up the functions of loading and unloading, thereby realizing the speed-up of the whole production process. In addition, the automatic loading and unloading method can more effectively utilize the production efficiency of the equipment, shorten the production cycle, and increase the output. At the same time, the research on the automatic loading and unloading device is helpful to optimize the structure of the whole production process, thereby improving the production efficiency and product quality. Through the automatic loading and unloading process, the supply of raw materials and the processing process of products can be accurately controlled, and the consistency and stability of production can be ensured. The automatic loading and unloading device can accurately control the position and movement trajectory of the material, thereby ensuring the precision and quality of product processing. The automation system can reduce the demand for human resources, reduce labor costs, and reduce the waste and defective rate introduced by manual operation, thereby reducing production costs. At the same time, it reduces the labor intensity of workers, improves the safety of the working environment and reduces the possibility of occupational injuries. In terms of improving product quality, the automatic loading and unloading device can more accurately position and transport the sheet material, reduce manual errors, and ensure the consistency and repeatability of processing quality, so as to improve the quality of the product. The automatic loading and unloading device of the gluing hot press not only helps to optimize the existing production process, but also promotes the development of related technologies, promotes technological progress of the entire industry and improves the level of industrial automation.

[0062] The above is only a specific implementation of the utility model, but the protection scope of the utility model is not limited thereto. Any changes or substitutions that can be easily thought of by a person skilled in the art within the technical scope disclosed by the utility model should be included in the protection scope of the utility model. Therefore, the protection scope of the utility model should be based on the protection scope of the claims.

Claims

1. A plywood hot press automatic loading and unloading device, comprising a plywood hot press (10), characterized in that: It also includes an in-and-out material mechanism (20) for transferring a sheet material into and out of the plywood hot press (10), a loading mechanism (30) for transferring a sheet material onto the in-and-out material mechanism, and a unloading mechanism (40) for transferring a sheet material off the in-and-out material mechanism (20); wherein the in-and-out material mechanism (20) includes: A feed end conveying mechanism (21), which is arranged beside the feed end of the plywood hot press (10) and is used to receive the boards transferred by the loading mechanism (30); a pushing mechanism (22), which is arranged beside the feed end conveying mechanism (21) and is used to push the sheet material on the feed end conveying mechanism (21) into the plywood hot press (10) and to push the sheet material out of the plywood hot press (10); The material discharge end conveying mechanism (23) is arranged beside the material handling end of the plywood hot press (10) and is used to receive the board pushed out from the plywood hot press (10) and convey the board to the material discharge mechanism (40).

2. The automatic loading and unloading device for hot pressing of plywood according to claim 1 is characterized in that: The unloading mechanism (40) comprises: A receiving frame (41) is arranged beside the discharge end conveying mechanism (23) and is used to receive the plates delivered by the discharge end conveying mechanism (23). A plurality of receiving rods (42) arranged in parallel in a transverse direction are fixedly arranged on the top of the receiving frame (41); A material unloading belt conveyor (43) comprises a conveying belt (44), wherein the conveying belt (44) is evenly provided with a plurality of transverse plates (45) along its extension direction, and a plurality of transversely arranged unloading rods (46) are arranged on the transverse plates (45). When the unloading rods (46) are driven by the conveying belt (44), they can pass through the plurality of receiving rods (42) from bottom to top, and the unloading rods (46) and the receiving rods (42) are staggered.

3. The automatic loading and unloading device for hot pressing of plywood according to claim 2 is characterized in that: The unloading mechanism (40) is provided with a material rack (50) for placing plates, a slow-drop frame (411) is arranged between the material rack (50) and the unloading belt conveyor (43), a plurality of rows of first rollers (48) are arranged obliquely on the top of the slow-drop frame (411), the plurality of rows of first rollers (48) gradually tilt downward toward the material rack (50), the unloading rod (46) can pass through the plurality of rows of first rollers (48) of the slow-drop frame (411) from top to bottom when driven by the conveyor belt (44), and the unloading rod (46) and the plurality of rows of first rollers (48) are arranged in a staggered manner.

4. The automatic loading and unloading device for hot pressing of plywood according to claim 2 is characterized in that: A second roller (49) is provided on the top of the receiving frame (41) at a position close to the material discharging end conveying mechanism (23), and an upwardly tilted limiting portion (410) is provided on the end of the receiving rod (42) away from the material discharging end conveying mechanism (23).

5. The automatic loading and unloading device for hot pressing of plywood according to claim 2 is characterized in that: A limiting member (47) is provided on the material discharge rod (46), and when the material discharge rod (46) is erected upward, the limiting member (47) is located on a side of the material discharge rod (46) facing the material discharge end conveying mechanism (23).

6. The automatic loading and unloading device for hot pressing of plywood according to claim 1 is characterized in that: The feed end conveying mechanism (21) comprises at least one row of third rollers (211) extending toward the feed end of the plywood hot press (10); The pushing mechanism (22) comprises a pushing frame (221) and a first linear driving mechanism (222) for driving the pushing frame (221) to move closer to or farther from the plywood hot press (10); the pushing frame (221) is higher than the third roller (211) so that when passing through the third roller (211), the pushing frame (221) can push the sheet material on the third roller (211) into the plywood hot press (10) or push the sheet material in the plywood hot press (10) to the discharge end conveying mechanism (23); The discharging end conveying mechanism (23) comprises a discharging end frame (231), a rotating rod (232), a first motor (233) and a rotating disk (234); the first motor (233) is two and is arranged on the discharging end frame (231) up and down; the rotating rod (232) is two, one end of the two rotating rods (232) is respectively fixedly arranged on the output shaft of the first motor (233) in a one-to-one correspondence, and the other end is rotatably arranged on the discharging end frame (231); the two rotating rods (232) are arranged horizontally and up and down; the rotating disk (234) is multiple and is respectively fixedly arranged on the two rotating rods (232).

7. The automatic loading and unloading device for hot pressing of plywood according to claim 6 is characterized in that: Screws (235) are rotatably provided on both sides of the discharging end frame (231), and two third sliders (236) are provided on each screw (235). The two third sliders (236) on the same screw (235) are provided with internal threads with opposite rotation directions and are installed on the screw (235) through threads. Connecting arms (237) are rotatably provided on the upper and lower parts of each third slider (236). The rotating rod (232) located at the top is rotatably connected to the ends of the connecting arms (237) at the upper parts of the two third sliders (236) located on the same screw (235), and the rotating rod (232) located at the bottom is rotatably connected to the ends of the connecting arms (237) at the lower parts of the two sliders (236) located on the same screw (235). The two first motors (233) are respectively fixedly provided on a connecting arm (237) located at the lower part and fixedly provided on a connecting arm (237) located at the lower part.

8. The automatic loading and unloading device for hot pressing of plywood according to claim 1 is characterized in that: The loading mechanism (30) comprises a loading rack (31), a vacuum suction cup (32) arranged on the loading rack (31), and a second linear drive mechanism (33) for driving the loading rack (31) to move closer to or away from the feed end conveying mechanism (21), wherein the vacuum suction cup (32) is higher than the second linear drive mechanism (33).

9. The automatic loading and unloading device for hot pressing of plywood according to claim 1, characterized in that: The loading mechanism (30) and the unloading mechanism (40) are both provided with a material rack (50) for placing plates, the material rack (50) comprising a lifting platform (51) and a placing platform (52), the placing platform (52) being placed on the top of the lifting platform (51) for placing plates, a vertically arranged top plate (522) being arranged on one side of the top of the placing platform (52), and when the material rack (50) is located on one side of the unloading mechanism (40), the top plate (522) is located on a side away from the unloading mechanism (40).

10. The automatic loading and unloading device for hot pressing of plywood according to claim 9, characterized in that: The lifting platform (51) comprises a bottom support (511), a top support (512), a cylinder (513), a scissor mechanism (514) and a connecting piece (515); the bottom support (511) is located directly below the top support (512); longitudinal slide rails (516) are respectively arranged on the sides of the bottom support (511) and the top support (512) facing each other; the scissor mechanism (514) is a double X-shaped scissor unit structure; a support leg at one end of the bottom is rotatably connected to one end of the bottom support (511); a support leg at the other end of the bottom is slidably arranged on the longitudinal slide rail (516) of the bottom support (511); a support leg at one end of the top is rotatably connected to one end of the top support (512); a support leg at the other end of the bottom is slidably arranged on the longitudinal slide rail (516) of the top support (512); the scissor mechanism (514) is a double X-shaped scissor unit structure; 4) is provided with a locking portion (517) at a support foot located on one side of the longitudinal slide rail (516), one end of the cylinder (513) is rotatably connected to one end of the base (511), and the other end is rotatably connected to one end of the connecting member (515), and the middle part of the connecting member (515) is rotatably mounted on the support foot of the scissor unit at the top of the scissor mechanism (514) at one side of the longitudinal slide rail (516), and when the cylinder (513) is extended to a certain length, the connecting member (515) abuts against one end of the locking portion (517) close to the cylinder (513), and when the cylinder (513) is retracted to a certain length, the connecting member (515) abuts against one end of the locking portion (517) away from the cylinder (513).

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