Feeding device for plastic plate welding equipment

Abstract

The utility model discloses a feeding device for plastic plate welding equipment. The feeding device comprises a workbench, a first lifting assembly and a moving assembly, wherein the workbench is used for containing plates, the first lifting assembly drives the workbench to ascend / descend, and the moving assembly drives the workbench to transversely move in the side direction. The pushing block is arranged on one side of the plate, and the pushing assembly drives the pushing block to move transversely. The fixing table is arranged on one side of the workbench, a through hole is formed in the side face of the fixing table, a protruding strip is arranged on the lower portion of the interior of the through hole, and a groove corresponding to the protruding strip is formed in the lower portion of the workbench; the groove formed below the workbench is matched with the protruding strip in the through hole in the side face of the fixed table, when the control module instructs the first lifting assembly and the moving assembly to work cooperatively, the workbench is accurately inserted into the through hole, and it is ensured that the groove is aligned with the protruding strip, and the locking block abuts against the upper surface of the workbench between two plates; the plate can be prevented from deviating and moving in the horizontal direction, and the plate pushing device can be used for guiding the pushing block to ensure that the position of the plate is accurate and errorless in the pushing process.

Description

TECHNICAL FIELD

[0001] The utility model relates to a plastic plate welding equipment loading device belongs to plastic plate loading technical field. BACKGROUND

[0002] The plastic plate welding equipment loading device is an auxiliary device for automatically or semi-automatically conveying plastic plates into the welding equipment, improving work efficiency and operation accuracy.

[0003] The existing plate is difficult to realize automatic calibration during loading due to the weight of the plate and the limitations of equipment design, and manual intervention is required during the calibration process, which not only consumes a lot of time, but also increases the labor intensity of the operator.

[0004] In addition, it is difficult to ensure complete accuracy during manual calibration, and positioning errors are easily caused by personnel operation errors, thereby affecting the quality of subsequent processes and overall production efficiency. This situation especially in batch production and high-precision scenarios further amplifies the negative impact of calibration problems on the production process.

[0005] Therefore, a plastic plate welding equipment loading device is designed, which is easy to use and can realize automatic calibration and reduce alignment errors. SUMMARY

[0006] In view of the deficiencies of the prior art, the utility model aims to provide a plastic plate welding equipment loading device to solve the problems of the prior art.

[0007] In order to achieve the above-mentioned purpose, the utility model is realized through the following technical scheme:

[0008] A plastic plate welding equipment loading device comprises:

[0009] A workbench for placing plates, a first lifting assembly for driving the workbench to rise / fall, and a moving assembly for driving the workbench to translate laterally;

[0010] A pushing block arranged on one side of the plate, and a pushing assembly for driving the pushing block to move laterally;

[0011] A fixed table arranged on one side of the workbench, the fixed table is provided with a through hole on the side surface, a convex strip is arranged inside the through hole below, and a recess corresponding to the convex strip is arranged below the workbench;

[0012] A locking block is arranged inside the through hole above, and a second lifting assembly for driving the locking block to rise / fall is installed on the fixed table;

[0013] A control module is electrically connected with the first lifting assembly, the moving assembly, the pushing assembly, and the second lifting assembly;

[0014] The control module controls the moving assembly to drive the workbench to insert into the through hole, and the groove is located directly above the convex strip;

[0015] The control module cooperates with the first lifting assembly to drive the workbench to descend, and the groove cooperates with the convex strip to be inserted;

[0016] The control module controls the second lifting assembly to drive the lock block to descend and abut against the upper surface of the workbench between the two plates;

[0017] The control module controls the pushing assembly to drive the pushing block to horizontally push the plate to the working area in cooperation with the lock block.

[0018] As a further improvement, the moving assembly comprises a moving table located below the workbench, and the first lifting assembly is arranged between the moving table and the workbench;

[0019] Further comprising a guide rail laid on the ground, a roller rotatably arranged below the moving table, and a driving motor for driving the roller to rotate forward or reverse, wherein the control module is electrically connected with the driving motor.

[0020] As a further improvement, the first lifting assembly comprises a telescopic hydraulic cylinder vertically arranged below the workbench, and a hydraulic pump arranged below the telescopic hydraulic cylinder for driving the telescopic hydraulic cylinder to extend or contract, wherein the hydraulic pump is arranged inside the moving table, and the hydraulic pump is electrically connected with the driving motor.

[0021] As a further improvement, the through hole has a height greater than the total thickness of the workbench, the plate, and the convex strip, and the workbench extends to the side of the fixed table with a width greater than the width of the through hole.

[0022] As a further improvement, the second lifting assembly comprises a first telescopic air cylinder vertically welded above the lock block, and a first air pump for driving the first telescopic air cylinder to extend or contract, wherein the first air pump is fixedly arranged above the fixed table, and the first air pump is electrically connected with the control module.

[0023] As a further improvement, the pushing assembly comprises a second telescopic air cylinder vertically welded on the side of the pushing block, and a second air pump for driving the second telescopic air cylinder to extend or contract, wherein the second air pump is fixedly arranged above the workbench, and the second air pump is electrically connected with the control module.

[0024] As a further improvement, a plurality of groups of balls are arranged above the workbench, and the plate is attached to the balls.

[0025] As a further improvement, the protrusions are elongated.

[0026] Advantages:

[0027] The utility model discloses a groove set below the workbench and the convex strip in the lateral through -hole of fixed platform are mutually matched, when the control module instructs the first lifting assembly and mobile assembly to work in coordination, make the workbench accurate insertion through -hole to, and ensure the groove and the convex strip alignment, can realize the primary positioning of workbench.

[0028] When the lock block is driven to descend by the second lifting assembly and abuts on the workbench upper surface between two plates, not only can prevent the plate from moving in the horizontal direction, but also can be as the guide of push block, ensure the plate position accurate during pushing.

[0029] Through the combination of groove-convex strip cooperation and the guidance of lock block, the multi-point positioning of the placed plate is realized, compared with the traditional single-point positioning mode, the deformation or sliding caused by the large weight of the plate can be more effectively reduced, so as to improve the positioning accuracy. Through the integration of automatic calibration function, the accuracy and efficiency of plate conveying are significantly improved, and the problem that it is difficult to ensure complete accuracy in the manual calibration process in the existing feeding process and the problem that the positioning is inaccurate due to personnel operation error are solved. BRIEF DESCRIPTION OF DRAWINGS

[0030] In order to more clearly illustrate the technical scheme of the embodiments of the utility model, the following will be briefly introduced the drawings needed to be used in the embodiments, it should be understood, the following drawings only show some embodiments of the utility model, therefore should not be regarded as the limitation to the scope, for ordinary skilled person in the art, under the premise of not paying the creative labor, still can obtain other related drawings according to these drawings.

[0031] Figure 1 It is a kind of plastic plate welding equipment for feeding device three-dimensional structure schematic view of the utility model.

[0032] Figure 2 It is a kind of plastic plate welding equipment for feeding device side view structure schematic view of the utility model.

[0033] Figure 3 It is Figure 2 sectional structure schematic view in A of it.

[0034] Figure 4 It is Figure 3 partial enlarged sectional schematic view.

[0035] Figure 5 It is a kind of plastic plate welding equipment for feeding device control module view structure schematic view of the utility model.

[0036] 1, workbench; 11, push block; 12, groove; 13, second telescopic air cylinder; 14, second air pump; 15, ball; 2, fixed table; 21, through hole; 22, convex strip; 23, lock block; 3, control module; 4, moving table; 41, guide rail; 42, roller; 43, telescopic hydraulic cylinder; 44, hydraulic pump; 45, first telescopic air cylinder; 46, first air pump; 47, drive motor; 5, plate. DETAILED DESCRIPTION

[0037] In order to make the purpose, technical scheme and advantages of the embodiments of the present application clearer, the technical scheme in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are some embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all the other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application. Therefore, the following detailed description of the embodiments of the present application provided in the drawings is not intended to limit the scope of the claimed present application, but only to represent selected embodiments of the present application. Based on the embodiments in the present application, all the other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0038] In the description of the present application, the terms "first", "second" are only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined with "first", "second" can explicitly or implicitly include one or more of the features. In the description of the present application, the meaning of "multiple" is two or more, unless otherwise specifically limited.

[0039] Referring to Figures 1-5 As shown in the figure, a plastic plate welding equipment feeding device, comprising:

[0040] A workbench 1 for placing a plate 5, a first lifting assembly for driving the workbench 1 to rise / fall, and a moving assembly for driving the workbench 1 to translate laterally;

[0041] A push block 11 is arranged on one side of the plate 5, and a push assembly is arranged for driving the push block 11 to move laterally;

[0042] A fixed table 2 is arranged on one side of the workbench 1, the fixed table 2 is provided with a through hole 21 on the side, a convex strip 22 is arranged inside and below the through hole 21, and a groove 12 corresponding to the convex strip 22 is arranged below the workbench 1;

[0043] The inside upper part of the through hole 21 is provided with a lock block 23, and the fixed table 2 is provided with a second lifting assembly for driving the lock block 23 to ascend / descend;

[0044] A control module 3 is electrically connected with the first lifting assembly, the moving assembly, the pushing assembly and the second lifting assembly;

[0045] The moving assembly is driven by the control module 3 to insert the workbench 1 into the through hole 21, and the groove 12 is located directly above the convex strip 22;

[0046] The workbench 1 is driven to descend by the control module 3 cooperating with the first lifting assembly, and the groove 12 is inserted into the convex strip 22 in cooperation;

[0047] The second lifting assembly is controlled by the control module 3 to drive the lock block 23 to descend and abut against the upper surface of the workbench 1 between the two plates 5;

[0048] The control module 3 controls the pushing assembly to drive the pushing block 11 to cooperate with the lock block 23 to horizontally push the plate 5 to the working area.

[0049] By integrating the automatic calibration function, the accuracy and efficiency of the plate 5 conveying are significantly improved. Specifically, the present scheme mainly solves the problem that it is difficult to ensure complete accuracy in the manual calibration process in the current feeding process, and the positioning is prone to inaccuracy due to personnel operation errors.

[0050] Firstly, the groove 12 arranged below the workbench 1 cooperates with the convex strip 22 in the through hole 21 of the side surface of the fixed table 2, when the control module 3 instructs the first lifting assembly and the moving assembly to work cooperatively, the workbench 1 is accurately inserted into the through hole 21, and the groove 12 is aligned with the convex strip 22, so that the preliminary positioning of the workbench 1 can be realized.

[0051] When the lock block 23 is driven to descend by the second lifting assembly and abuts against the upper surface of the workbench 1 between the two plates 5, not only can the plates 5 be prevented from moving in the horizontal direction, but also the lock block 23 can guide the pushing block 11 to ensure the accurate position of the plate 5 during the pushing process.

[0052] The above-mentioned calibration mechanism is automatically controlled by the control module 3, without the need for additional calibration operation by manual, which greatly reduces the labor intensity and improves the production efficiency and safety.

[0053] The user only needs to complete the complex feeding process through simple operation instructions, which reduces the operation difficulty, and even the workers with less experience can quickly get started.

[0054] At the same time, further improve the conveying accuracy, through the combination of groove 12-convex strip 22 cooperation and lock block 23 guide, realize the multi-point positioning of the placement plate 5, compared with the traditional single-point positioning mode, can more effectively reduce the deformation or sliding caused by the heavy weight of the plate 5, so as to improve the positioning accuracy.

[0055] By adjusting the working parameters of the first lifting assembly, moving assembly, pushing assembly and the like, different thickness and width of plastic plate 5 can be easily adapted, and the versatility and flexibility of the equipment are enhanced.

[0056] Due to the reduction of labor cost and improvement of production efficiency, the overall production cost is reduced. Among them, the automatic calibration function reduces the human operation error, so that the positioning of the plate 5 is more accurate, thereby improving the welding quality and reducing the defective rate. And reduce the opportunity of operators directly contact heavy objects, reduce the possibility of industrial accidents, improve the safety of the working environment.

[0057] The design of the present scheme is particularly suitable for batch production environment, which can quickly and continuously feed and calibrate the plate 5, meeting the needs of large-scale production.

[0058] The plastic plate 5 welding equipment feeding device designed in the present scheme is suitable for various plastic plate 5 welding occasions, especially in batch production and high welding precision requirements.

[0059] In the production line that needs to continuously process a large number of plastic plates 5, the automatic feeding device can significantly improve the production efficiency. Medical equipment, precision instruments and other occasions with high welding precision requirements, the automatic calibration function can ensure that each plate 5 is welded in the correct position, reducing the defective rate. For heavier plastic plates 5, manual handling and calibration not only laborious, but also prone to positioning errors, and the automatic feeding device can effectively solve these problems.

[0060] Specific operation steps:

[0061] The operator places the plate 5 to be welded on the workbench 1, ensuring that the plate 5 is flat.

[0062] Input the specification parameters (such as thickness, width, etc.) of the plate 5 through the user interface of the control module 3, and start the feeding device.

[0063] The feeding device automatically performs the following actions:

[0064] The workbench 1 moves horizontally to the side of the fixed table 2 and is inserted into the through hole 21. The workbench 1 is lowered, the groove 12 is aligned with the convex strip 22 and is inserted. The lock block 23 is lowered and abuts on the upper surface of the workbench 1 between the plates 5. The push block 11 pushes the plates 5 horizontally to the working area of the welding equipment under the guidance of the lock block 23, and the welding equipment is automatically started to complete the welding operation.

[0065] Further to the control of the moving function of the workbench 1, the moving assembly includes a moving table 4 located below the workbench 1, and the first lifting assembly is arranged between the moving table 4 and the workbench 1.

[0066] It also includes a guide rail 41 laid on the ground, a roller 42 rotatably installed below the moving table 4, and a driving motor 47 driving the roller 42 to rotate forward / reverse, and the control module 3 is electrically connected with the driving motor 47.

[0067] Through the separated design of the workbench 1 and the moving table 4, the first lifting assembly is arranged between the moving table 4 and the workbench 1, which can keep a more stable structure when the workbench 1 is raised / lowered, avoiding shaking or tilting due to the heavy weight of the plates 5.

[0068] The guide rail 41 is laid on the ground to provide a stable track for the moving table 4, ensuring the linearity and accuracy of the moving process.

[0069] By using the roller 42 instead of a sliding block or a sliding surface, the friction during the moving process can be significantly reduced, making the moving more smooth, reducing energy consumption and wear, and improving accuracy.

[0070] The driving motor 47 directly controls the forward and reverse rotation of the roller 42, with fast response speed, which can realize accurate positioning and fast moving.

[0071] It is emphasized that since the travel of each movement can be pre-encoded and set, the sensor can be omitted.

[0072] In a large plastic plate 5 welding production line:

[0073] Continuous production is carried out, and the guide rail 41 and the roller 42 system ensure the fast and accurate movement of the workbench 1, so that the production line can work continuously and efficiently.

[0074] It can reduce downtime, and automatic feeding reduces manual intervention, reduces downtime caused by human operation errors, and improves overall production efficiency.

[0075] Further introduce the function of controlling the lifting of the workbench 1, the first lifting assembly includes a telescopic hydraulic cylinder 43 vertically installed below the workbench 1, and a hydraulic pump 44 arranged below the telescopic hydraulic cylinder 43 to drive the telescopic hydraulic cylinder 43 to extend / contract, the hydraulic pump 44 is installed inside the moving table 4, and the hydraulic pump 44 is electrically connected with the driving motor 47.

[0076] In this embodiment, the first telescopic rod is provided with four groups, which are arranged at the four corners below the workbench 1, and the hydraulic pump 44 can also adopt an external pump.

[0077] By arranging four telescopic hydraulic cylinders 43 at the four corners of the workbench 1, the stress of the workbench 1 during lifting and lowering can be ensured to be uniform, and the deflection or inclination caused by single-point stress can be reduced.

[0078] The hydraulic cylinder is extended and contracted by the hydraulic power provided by the hydraulic pump 44, which is suitable for heavy load conditions and can provide stable lifting power.

[0079] Each telescopic hydraulic cylinder 43 can be independently controlled by the control module 3, and fine adjustment can be made according to the specific conditions of the plate 5 (such as the position of the center of gravity, the inclination angle, etc.), so as to improve the positioning accuracy.

[0080] The hydraulic pump 44 is electrically connected with the driving motor 47, and the driving motor 47 directly controls the hydraulic pump 44, so that rapid response and accurate control can be realized, and the action of the hydraulic cylinder is more accurate and reliable.

[0081] The hydraulic pump 44 can be installed inside the moving table 4 or an external pump can be used. Such design can be selected according to the actual production environment and space limitation, increasing the adaptability of the equipment. The hydraulic system can provide greater force and more stable movement, especially suitable for handling heavy plates 5.

[0082] The height of the through hole 21 is greater than the superimposed thickness of the workbench 1, the plate 5 and the convex strip 22, and the extension width of the workbench 1 towards the fixed table 2 side is greater than the width of the through hole 21.

[0083] By such arrangement, the workbench 1 can be inserted into the through hole 21 when carrying the plate 5, and can be matched with the convex strip 22 position downward, and the plate 5 can be completely extended to the work area.

[0084] Further introduce the function of controlling the lifting of the workbench 1, the first lifting assembly includes a telescopic hydraulic cylinder 43 vertically installed below the workbench 1, and a hydraulic pump 44 arranged below the telescopic hydraulic cylinder 43 to drive the telescopic hydraulic cylinder 43 to extend / contract, the hydraulic pump 44 is installed inside the moving table 4, and the hydraulic pump 44 is electrically connected with the driving motor 47.

[0085] Further introduce the precise pushing of the control plate 5, the pushing assembly includes a second telescopic cylinder 13 vertically welded on the side of the pushing block 11, and a second air pump 14 driving the second telescopic cylinder 13 to extend / contract, the second air pump 14 is fixedly installed above the workbench 1, and the second air pump 14 is electrically connected with the control module 3.

[0086] Because the pneumatic system has faster response speed than the hydraulic system, it is suitable for occasions requiring fast action, such as the rapid descent of the locking block 23 and the horizontal movement of the pushing block 11.

[0087] Through the electrical connection of the control module 3 and the air pump, accurate control can be realized to ensure the accurate position and time of the action of the locking block 23 and the pushing block 11.

[0088] The pneumatic system has low energy consumption while providing sufficient power, especially suitable for frequent action occasions, which can effectively reduce the operating cost of the equipment. The extension and contraction action of the cylinder can be quickly completed by the air pump without the need for a long time to maintain high pressure, further reducing energy consumption.

[0089] Among them, the pneumatic system has good overload protection capability, when the load exceeds the design range, the cylinder will automatically stop action to prevent equipment damage and safety accidents.

[0090] Through the fine control of the control module 3, the accurate position of the locking block 23 and the pushing block 11 is ensured, which avoids the mispositioning of the plate 5 and the welding error caused by the position deviation.

[0091] The control module 3 instructs the first air pump 46 to drive the first telescopic cylinder 45 to extend, so that the locking block 23 abuts against the upper surface of the workbench 1 between the two plates 5, further fixing the position of the plate 5.

[0092] The control module 3 instructs the second air pump 14 to drive the second telescopic cylinder 13 to extend, so that the pushing block 11 moves horizontally to completely push the plate 5 to the working area of the welding equipment.

[0093] A plurality of groups of ball bearings 15 are also arranged above the workbench 1, the lower surface of the plate 5 is attached to the upper surface of the ball bearings 15, the ball bearings 15 are embedded on the upper surface of the workbench 1, and 50% of the ball bearings 15 are exposed outside.

[0094] Because the ball bearings 15 have very low friction coefficient, they can significantly reduce the friction between the plate 5 and the workbench 1, making the plate 5 move more smoothly and reducing wear.

[0095] Low-friction design can reduce scratches and damage on the surface of the plate 5, especially when handling plates 5 with high surface quality requirements.

[0096] The rolling characteristics of the balls 15 make the pushing block 11 more stable and accurate when moving the plate 5 horizontally, reducing positional deviations caused by friction.

[0097] Therefore, the balls 15 are evenly distributed on the workbench 1, ensuring that the plate 5 is evenly stressed during the entire movement, improving the reliability of positioning.

[0098] Moreover, the low-friction characteristics of the balls 15 reduce the wear of the workbench 1 surface, prolonging the service life of the equipment.

[0099] The size of the balls 15 needs to be determined according to the specific specifications of the plate 5 and the load capacity of the equipment. Here are some common ball 15 size examples:

[0100] 1. Small plate 5 (thickness 1-5mm):

[0101] Ball 15 diameter: 3-5mm

[0102] Ball 15 spacing: 10-15mm

[0103] Suitable scenarios: Suitable for fast movement and positioning of light and thin plates 5, such as plastic film, thin metal plates, etc.

[0104] 2. Medium plate 5 (thickness 5-10mm):

[0105] Ball 15 diameter: 5-8mm

[0106] Ball 15 spacing: 15-20mm

[0107] Suitable scenarios: Suitable for medium-thickness plates 5, such as plastic plates, composite material plates, etc.

[0108] 3. Large plate 5 (thickness 10-30mm):

[0109] Ball 15 diameter: 8-12mm

[0110] Ball 15 spacing: 20-30mm

[0111] Suitable scenarios: Suitable for thicker plates 5, such as large-size plastic plates, metal plates, etc.

[0112] 4. Super large plate 5 (thickness 30mm or more):

[0113] Ball 15 diameter: 12-15mm

[0114] Ball 15 spacing: 30-40mm

[0115] Suitable scenarios: Suitable for super-thick or super-large plates 5, such as industrial-grade metal plates, composite material plates, etc.

[0116] The convex strip 22 is a long strip-shaped convex structure, which is a cuboid structure in this embodiment, and can also be a regular geometric figure structure such as a semi-cylindrical or triangular prism in other embodiments, and the groove 12 and the convex strip 22 are corresponding in structure.

[0117] It should be noted that the device structure and the drawings of the utility model mainly describe the principle of the utility model, and the setting of the power mechanism, the power supply system and the control system of the device is not completely described in the technical principle of the design, and the specific of the power mechanism, the power supply system and the control system can be clearly known by the technical personnel in the field under the premise of understanding the principle of the above-mentioned utility model, and the control mode of the application file is automatically controlled through the controller, and the control circuit of the controller can be realized through simple programming of the technical personnel in the field;

[0118] The standard parts used can be purchased from the market, and can be ordered according to the description and the drawings, the specific connection mode of each part adopts the conventional means such as bolts, rivets and welding in the prior art, the mechanical parts and equipment adopt conventional models in the prior art, and the components known by the technical personnel in the field are known by the technical personnel in the field through technical manuals or conventional experimental methods.

[0119] The above only describes preferred embodiments of the utility model, and is not used to limit the utility model, and the utility model can be changed and varied for the technical personnel in the field. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model should be included in the protection scope of the utility model.

Claims

1. A feeding device for a plastic sheet welding equipment, characterized in that, Including: The workbench (1) for placing the board (5), the first lifting assembly driving the workbench (1) to rise / fall, the moving assembly driving the workbench (1) to translate laterally; The push block (11) is arranged on one side of the board (5), and the push assembly driving the push block (11) to move laterally; The fixed table (2) is arranged on one side of the workbench (1), the fixed table (2) is provided with a through hole (21) on the side, the through hole (21) is provided with a convex strip (22) inside and below, and the workbench (1) is provided with a recess (12) corresponding to the convex strip (22) below; The through hole (21) is provided with a lock block (23) inside and above, and the fixed table (2) is provided with a second lifting assembly driving the lock block (23) to rise / fall; The control module (3) is electrically connected with the first lifting assembly, the moving assembly, the push assembly and the second lifting assembly; The moving assembly is controlled by the control module (3) to drive the workbench (1) to insert into the through hole (21), and the recess (12) is located directly above the convex strip (22); The workbench (1) is driven to fall by the control module (3) cooperating with the first lifting assembly, and the recess (12) is inserted and connected with the convex strip (22); The second lifting assembly is controlled by the control module (3) to drive the lock block (23) to fall and abut against the upper surface of the workbench (1) between the two boards (5); The control module (3) controls the push assembly to drive the push block (11) to cooperate with the lock block (23) to horizontally push the board (5) to the working area.

2. The feeding device for plastic plate welding equipment according to claim 1, characterized in that: The moving assembly includes a moving table (4) below the workbench (1), and the first lifting assembly is arranged between the moving table (4) and the workbench (1); It also includes a guide rail (41) laid on the ground, a roller (42) rotatably installed below the moving table (4), and a driving motor (47) driving the roller (42) to rotate forward / reverse, and the control module (3) is electrically connected with the driving motor (47).

3. The feeding device for plastic plate welding equipment according to claim 1, characterized in that: The first lifting assembly includes a telescopic hydraulic cylinder (43) vertically installed below the workbench (1), and a hydraulic pump (44) arranged below the telescopic hydraulic cylinder (43) and driving the telescopic hydraulic cylinder (43) to extend / contract, the hydraulic pump (44) is installed inside the moving table (4), and the hydraulic pump (44) is electrically connected with the driving motor (47).

4. The feeding device for plastic plate welding equipment according to claim 3, characterized in that: The height of the through hole (21) is greater than the superposition thickness of the workbench (1), the board (5) and the convex strip (22), and the width of the workbench (1) extending towards one side of the fixed table (2) is greater than the width of the through hole (21).

5. The feeding device for plastic plate welding equipment according to claim 4, characterized in that: The second lifting assembly includes a first telescopic air cylinder (45) welded vertically above the lock block (23), and a first air pump (46) driving the first telescopic air cylinder (45) to extend / contract, the first air pump (46) is fixedly installed above the fixed table (2), and the first air pump (46) is electrically connected with the control module (3).

6. The feeding device for plastic plate welding equipment according to claim 1, characterized in that: The push assembly comprises a second telescopic air cylinder (13) welded vertically on the side of the push block (11), and a second air pump (14) driving the second telescopic air cylinder (13) to extend / contract, which is fixedly installed above the workbench (1) and electrically connected with the control module (3).

7. The feeding device for plastic plate welding equipment according to claim 6, characterized in that: A plurality of groups of ball bearings (15) are arranged above the workbench (1), and the plate (5) is attached to the upper part of the ball bearings (15).

8. The feeding device for a plastic sheet welding apparatus according to claim 1, characterized in that: The convex strip (22) is a long strip-shaped convex structure.

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