A device for loading and unloading a plate before and after forming the plate

Abstract

The application relates to the technical field of plate processing, and particularly discloses a plate loading and unloading device before and after plate forming, which comprises a bracket trolley, a traction device and a blank tray, the bracket trolley is used for bearing and conveying the blank tray, the traction device is used for transferring the blank tray and the plate after forming, and the blank tray is used for bearing the blank before forming and transferring the plate after forming. The patent aims to solve the problems that there is no applicable plate transferring device in the existing plate forming process, and there is no cooperation among the processes of plate forming, plate storage before forming and plate storage after forming. The device is mainly used for blank transferring before plate forming and plate transferring after forming.

Description

Technical Field

[0001] This utility model relates to the field of sheet metal processing technology, and in particular to a sheet metal loading and unloading device before and after sheet metal forming. Background Technology

[0002] In the field of sheet metal processing technology, sheet metal production typically involves multiple stages, including forming, curing, storage, and transfer. In traditional production processes, formed sheets need to be transferred from the production line to curing racks for solidification. However, the loading and unloading of blanks and the transfer of finished products largely rely on manual operation or scattered mechanical equipment. For example, existing technologies often use lifting sheet metal racks or multi-layer placement racks to achieve vertical stacking and storage of sheets. However, the loading of blanks, the unloading of formed sheets, and their transfer still involve process fragmentation, resulting in insufficient continuity of the production process and limiting overall efficiency.

[0003] Currently, some technical solutions attempt to optimize the sheet material transfer process through automated equipment. For example, the lifting sheet material rack disclosed in patent CN212892595U achieves vertical lifting and horizontal pushing of the sheet material through a drive mechanism and a pusher mechanism. This eliminates the need for manual unloading of the sheet material from the production line and placing it on a multi-layer curing rack for curing, saving time and manpower spent on sheet material removal, transfer, and placement, and reducing production costs. Patent CN206842991U uses a sheet material movable support combining suction cups and sensors, which can reduce damage from manual handling, but it does not solve the problem of integrated loading and unloading of raw materials and finished sheets. Patent CN222134941U's multi-layer placement rack achieves automated placement of carrying pallets through a pallet lifting mechanism, but its design is mainly aimed at the curing stage and does not cover the loading, unloading, and transfer needs before and after molding. Although existing technologies have achieved automation improvements in some aspects, the equipment in each stage has single functions and lacks coordination, resulting in breakpoints in the production process.

[0004] Therefore, in response to the process requirements before and after sheet forming, there is an urgent need for an automated design of a sheet transfer device to achieve automated coordination between sheet storage, pre-forming processes, and post-forming processes, thereby improving production line efficiency. Utility Model Content

[0005] To address the shortcomings of existing technologies, the present invention provides a loading and unloading device for sheet metal before and after sheet metal forming, thereby solving the problem of the lack of suitable sheet metal transfer devices in the existing sheet metal forming process and the lack of coordination between the processes of sheet metal forming, forming, and storing sheet metal.

[0006] To solve the above problems, the technical solution adopted by this utility model is: a loading and unloading device for sheet metal before and after forming, including a bracket trolley, a traction device, and a blank pallet. The bracket trolley includes a trailer frame, bracket wheels for moving and fixing the bracket trolley, and a first lifting device for controlling the lifting and lowering of the support plate; the trailer frame includes a box body, support columns, and a top plate, with the box body located at the lower part of the trailer frame; the support columns are fixedly connected to the four corners of the upper surface of the box body, and the uppermost ends of the four support columns are fixedly connected as a whole by a top plate. The traction device includes a traction frame and traction wheels for moving and fixing the traction frame; the traction frame is rectangular, and a second lifting device for raising and lowering the traction telescopic rod is fixed inside the traction frame; the traction telescopic rod includes a telescopic device and a detachable traction head; the telescopic device uses an electric push rod, hydraulic cylinder telescopic, or pneumatic cylinder telescopic to achieve the extension and retraction of the rod; the detachable traction head uses magnetic adsorption, vacuum adsorption, or mechanical grippers to move the blank tray and the formed sheet; the second lifting device uses a hydraulic lift, screw jack, or scissor lift to raise and lower the traction telescopic rod; The blank material tray includes a handle, a disc, and a barrier; the handles are symmetrically arranged on both sides of the blank material tray, and the discs are symmetrically arranged on the other two sides of the blank material tray; the barrier is arranged around the perimeter of the blank material tray, the long side of the barrier is hinged to the blank material tray, and the four corners of the barrier are fixed by connecting devices.

[0007] Compared with existing technologies, the beneficial effects of this solution are: 1. This technical solution uses a trolley to transfer the sheet metal and a traction device to achieve mechanized loading and unloading of the sheet metal. The synergistic effect of the trolley and the traction device solves the problem of coordination between sheet metal transfer and loading / unloading, improving the production line's efficiency; 2. It reduces the number of manual steps involved in sheet metal loading and unloading, reducing reliance on manpower; 3. The combination of the second lifting device and the telescopic device enables multi-dimensional precise adjustment of the traction telescopic rod, adapting to traction needs of different heights and distances. The detachable traction head supports three modes, allowing flexible switching between adsorption or clamping modes for sheet metal of different materials and shapes, reducing equipment specialization limitations.

[0008] Furthermore, the connecting device includes a fixing plate and a fixing corner block. The fixing plate consists of two pieces, which are fixed perpendicularly to each other at the corner of the enclosure. The fixing plate has concave teeth, and the fixing corner block has convex teeth that match the concave teeth of the fixing plate. The fixing block and the fixing corner block are connected by a pin through the cooperation of the concave and convex teeth.

[0009] The fixing plate and the fixing corner block are connected by a pin-type interlocking mechanism with concave and convex teeth, forming a tight mechanical interlocking structure. This significantly improves the connection strength of the four corners of the fence and prevents the fence from loosening or deforming during handling or vibration. Furthermore, the standardized design of the concave and convex teeth allows the fixing block and corner block to be quickly aligned and inserted. Assembly or disassembly can be completed without additional tools, which facilitates the cleaning, maintenance, or replacement of parts on the blank pallet.

[0010] Furthermore, the first lifting device includes a ball screw and a motor that provides power to the ball screw. The ball screw includes a screw and a nut. The screw is embedded in a support column, and the upper and lower ends of the screw are fixedly connected to the support column. The nut can be raised and lowered along the screw by rotating the screw. Each ball screw is controlled by a separate motor.

[0011] Furthermore, the motor is a servo motor. The use of a ball screw combined with a servo motor drive ensures precise and controllable lifting and lowering of the support plate due to its high precision. Compared to traditional hydraulic or ordinary screw mechanisms, ball screws have low friction and no backlash, preventing misalignment or jamming of the plate due to height errors during use, thus improving the positioning reliability of loading, unloading, and transfer processes.

[0012] Furthermore, the support plate consists of four plates, located between the box body and the top plate, arranged in parallel. Each support plate is connected to the support column through four sliding connection points. One sliding connection point is fixedly connected to a nut, and the other three sliding connection points are on the other three support columns. The rotation of the rolling resistance screw drives the nut to rise and fall, allowing the support plate to rise and fall along the support column. The support plates are connected to nuts on different support columns, and the first lifting device on the same support column controls the rise and fall of only one support plate.

[0013] The support plate features an independently controlled design, making operation simpler and faster. When not in use, the support plate can be lowered to its lowest position to save space; when needed, it can be quickly adjusted to a suitable height via the first lifting device to meet different work requirements.

[0014] Furthermore, the height of the enclosure is greater than the height of the formed sheet material. This height effectively prevents the sheet material from slipping, shifting, or being bumped during transportation or processing, ensuring the quality of the finished product.

[0015] Furthermore, the disc is made of an adsorbable metal material. The use of a disc-shaped metal material facilitates the connection between the blank tray and the batching tray when the traction device uses magnetic or vacuum adsorption.

[0016] Furthermore, the bracket wheels are fixedly installed at the four corners of the bottom of the box and are swivel wheels with brakes. The swivel wheel design with brakes enables the bracket trolley to move freely in multiple directions, while the wheels can be fixed in place by the brakes.

[0017] Furthermore, the traction wheels are fixedly mounted at the four corners of the bottom of the traction device and are swivel wheels with brakes. The swivel wheel design with brakes enables the traction device to move freely in multiple directions, while the wheels can be fixed in place by the brakes. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the bracket trolley structure of this application.

[0019] Figure 2 This is a schematic diagram showing the relative positions of the ball screw, support column, and support plate in this application.

[0020] Figure 3 This is a schematic diagram of the traction device structure of this application.

[0021] Figure 4 This is a schematic diagram of the blank tray structure of this application.

[0022] Figure 5 This is a schematic diagram of the connection device structure of this application.

[0023] The reference numerals in the accompanying drawings of the instruction manual include: 1. Carrier trolley; 11. Carrier wheel; 12. Trailer frame; 121. Box body; 122. Support column; 123. Top plate; 13. Ball screw; 131. Screw; 132. Nut; 14. Motor; 15. Support plate; 2. Traction device; 21. Traction wheel; 22. Traction frame; 23. Traction telescopic rod; 231. Telescopic device; 232. Detachable traction head; 24. Second lifting device; 3. Raw material pallet; 31. Enclosure; 32. Handle; 33. Disc; 34. Connecting device; 341. Fixing plate; 342. Fixing corner block. Detailed Implementation

[0024] This utility model relates to a loading and unloading device for sheet metal before and after forming. The technical solution of this utility model will be described in detail below with reference to the accompanying drawings and embodiments, so that those skilled in the art can fully understand and implement the solution.

[0025] As attached Figure 1-5 As shown, a loading and unloading device for sheet metal before and after forming includes a bracket trolley 1, a traction device 2, and a blank pallet 3. The bracket trolley 1 is used to carry and transport the blank pallet 3, the traction device 2 is used to transfer the blank pallet 3 and the formed sheet metal, and the blank pallet 3 is used to hold the blank before forming and transfer the formed sheet metal.

[0026] The bracket trolley 1 includes a trailer frame 12 for connecting and supporting other components, bracket wheels 11 for moving and fixing the bracket trolley 1, and a first lifting device for controlling the lifting and lowering of the support plate 15.

[0027] The trailer frame 12 includes a box 121, support columns 122, and a top plate 123. The box 121 is located at the lower part of the trailer frame 12 and has sufficient strength and stability to bear the weight of the blanks and plates. The support columns 122 are fixedly connected to the four corners of the upper surface of the box 121, and the uppermost ends of the four support columns 122 are fixedly connected to each other as a whole by a top plate 123.

[0028] The bracket wheels 11 are fixedly installed at the four corners of the bottom of the box 121. They are universal wheels with brakes, which can realize forward, backward, left and right and turning movements, and also have brakes to fix them.

[0029] The first lifting device includes a ball screw 13 and a motor 14 that provides power to the ball screw 13. The ball screw 13 includes a screw 131 and a nut 132. The screw 131 is embedded in a support column 122, and the upper and lower ends of the screw 131 are fixedly connected to the support column 122. The nut 132 can be raised and lowered along the screw 131 by rotating the screw 131. Each ball screw 13 is controlled by a separate motor 14; the motor 14 is a servo motor.

[0030] The support plate 15 consists of four plates, located between the housing 121 and the top plate 123, arranged in parallel. Each support plate 15 is connected to the support column 122 through four sliding connection points. One sliding connection point is fixedly connected to the nut 132, and the other three sliding connection points are on the other three support columns 122. The rotation of the rolling resistance screw drives the nut 132 to rise and fall, allowing the support plate 15 to rise and fall along the support column 122. The support plate 15 is connected to the nut 132 on different support columns 122 respectively, and the first lifting device on the same support column 122 only controls the rise and fall of one support plate 15.

[0031] The traction device 2 includes a traction frame 22 for fixing and supporting the traction telescopic rod 23 and the second lifting device 24, and traction wheels 21 for moving and fixing the traction frame 22.

[0032] The tractor frame 22 is rectangular, and a second lifting device 24 for raising and lowering the tractor telescopic rod 23 is fixed inside the tractor frame 22.

[0033] The second lifting device 24 can be any one of a hydraulic lift, screw jack, or scissor lift to lift the traction telescopic rod 23.

[0034] The traction telescopic rod 23 includes a telescopic device 231 and a detachable traction head 232; the telescopic device 231 uses an electric push rod, hydraulic cylinder telescopic, or pneumatic cylinder telescopic to achieve the extension and retraction of the rod, and the detachable traction head 232 uses magnetic adsorption, vacuum adsorption, or mechanical grippers to move the blank tray 3 and the formed plate.

[0035] The traction wheels are fixedly installed at the four corners of the bottom of the traction device and are swivel wheels with brakes.

[0036] The blank tray 3 includes handles 32, discs 33, and barriers 31. The handles 32 are symmetrically arranged on both sides of the blank tray 3, and the discs 33 are symmetrically arranged on the other two sides of the blank tray 3. The discs 33 are made of metal material that can be adsorbed. The barriers 31 are arranged around the blank tray 3. The long side of the barriers 31 is hinged to the blank tray 3. The height of the barriers 31 is greater than the height of the molded sheet. The four corners of the barriers 31 are fixed by connecting devices 34.

[0037] The connecting device 34 includes a fixing plate 341 and a fixing corner block 342. The fixing plate 341 consists of two pieces, which are fixed perpendicularly to each other at the corner of the enclosure 31. The fixing plate 341 has concave teeth, and the fixing corner block 342 has convex teeth that match the concave teeth of the fixing plate 341. The fixing block and the fixing corner block 342 are connected by a pin through the cooperation of the concave and convex teeth.

[0038] Example 1 Step 1: The operator places the blank on the blank tray 3, closes the enclosure 31 and locks it with the fixed corner block 342.

[0039] Step 2: The trolley 1 moves to the loading station. The first lifting device adjusts the bottom surface of the top support plate 15 to be flush with the bottom surface of the blank pallet 3. The traction device 2 moves to a straight line formed by the blank pallet 3 and the trolley 1. From left to right, the blank pallet 3, the trolley 1, and the traction device 2 are arranged in that order. At this time, the disc 33 of the blank pallet 3 is also on the straight line. The traction device 2 uses the telescopic device 231 to pull the blank pallet 3 onto the top support plate 15 of the trolley 1 by magnetic attraction. The first lifting device moves the top support plate upward to make room for the second support plate 15 from the top. The bottom surface of the second support plate 15 is adjusted to be flush with the ground of the blank pallet 3. The traction device 3 then pulls the second blank pallet 3 onto the second support plate 15 of the trolley 1. The above operation is repeated to transfer four blank pallets 3 onto four support plates 15. A maximum of four blank pallets 3 can be transferred at one time.

[0040] Step 3: The bracket trolley 1 moves to the plate press station, and the traction device 2 moves to a straight line formed by the bracket trolley 1 and the plate press. From left to right, the traction device 2, the bracket trolley 1, and the plate press are arranged in sequence. The traction device 2 pushes the blank tray 3 into the press mold for pressing by means of magnetic adsorption through the telescopic device 231.

[0041] Step 4: After pressing is completed, the traction device 2 transfers the blank tray 3 to the bracket trolley 1, and then transfers the blank tray 3 to the sheet forming area through the bracket trolley 1. At this time, the blank tray 3 contains the formed sheet.

[0042] Step 5: Pull out the fixed corner block 342 to open the enclosure 31, and use vacuum adsorption to grab and transfer the molded sheet material.

[0043] Step 6: The operator places the new blank on the blank tray 3, closes the enclosure 31 and locks it with the fixed corner block 342, and repeats the above process to achieve cyclic operation.

[0044] The above descriptions are merely embodiments of this utility model, and common knowledge regarding specific structures and characteristics is not elaborated upon here. It should be noted that those skilled in the art can make various modifications and improvements without departing from the structure of this utility model, and these should also be considered within the scope of protection of this utility model. These modifications will not affect the effectiveness of the implementation of this utility model or the practicality of the patent. The scope of protection claimed in this application shall be determined by the content of its claims, and the specific embodiments described in the specification can be used to interpret the content of the claims.

Claims

1. A loading and unloading device for sheet metal before and after forming, characterized in that: A loading and unloading device for sheet metal before and after forming includes a bracket trolley, a traction device, and a blank pallet; The bracket trolley includes a trailer frame, bracket wheels for moving and fixing the bracket trolley, and a first lifting device for controlling the lifting and lowering of the support plate; the trailer frame includes a box body, support columns, and a top plate, with the box body located at the lower part of the trailer frame; the support columns are fixedly connected to the four corners of the upper surface of the box body, and the uppermost ends of the four support columns are fixedly connected as a whole by a top plate. The traction device includes a traction frame and traction wheels for moving and fixing the traction frame; the traction frame is rectangular, and a second lifting device for raising and lowering the traction telescopic rod is fixed inside the traction frame; the traction telescopic rod includes a telescopic device and a detachable traction head; the telescopic device uses an electric push rod, hydraulic cylinder telescopic, or pneumatic cylinder telescopic to achieve the extension and retraction of the rod; the detachable traction head uses magnetic adsorption, vacuum adsorption, or mechanical grippers to move the blank tray and the formed sheet; the second lifting device uses a hydraulic lift, screw jack, or scissor lift to raise and lower the traction telescopic rod; The blank material tray includes a handle, a disc, and a barrier; the handles are symmetrically arranged on both sides of the blank material tray, and the discs are symmetrically arranged on the other two sides of the blank material tray; the barrier is arranged around the perimeter of the blank material tray, the long side of the barrier is hinged to the blank material tray, and the four corners of the barrier are fixed by connecting devices.

2. The loading and unloading device for sheet metal before and after forming according to claim 1, characterized in that: The connecting device includes a fixing plate and a fixing corner block. The fixing plate consists of two pieces, which are fixed perpendicularly to each other at the corner of the enclosure. The fixing plate has concave teeth, and the fixing corner block has convex teeth that match the concave teeth of the fixing plate. The fixing block and the fixing corner block are connected by a pin through the cooperation of the concave and convex teeth.

3. The loading and unloading device for sheet metal before and after forming according to claim 1, characterized in that: The first lifting device includes a ball screw and a motor that provides power to the ball screw. The ball screw includes a screw and a nut. The screw is embedded in a support column, and the upper and lower ends of the screw are fixedly connected to the support column. The nut can be raised and lowered along the screw by rotating the screw. Each ball screw is controlled by a separate motor.

4. The loading and unloading device for sheet metal before and after forming according to claim 3, characterized in that: The motor is a servo motor.

5. The loading and unloading device for sheet metal before and after forming according to claim 1, characterized in that: The support plate consists of four plates, located between the box body and the top plate, arranged in parallel. Each support plate is connected to a support column through four sliding connection points. One sliding connection point is fixedly connected to a nut, and the other three sliding connection points are on the other three support columns. The rotation of the rolling resistance screw drives the nut to rise and fall, allowing the support plate to rise and fall along the support column. The support plates are connected to nuts on different support columns, and the first lifting device on the same support column controls the rise and fall of only one support plate.

6. The loading and unloading device for sheet metal before and after forming according to claim 1, characterized in that: The height of the enclosure is greater than the height of the molded sheet material.

7. The loading and unloading device for sheet metal before and after forming according to claim 1, characterized in that: The disk is made of a metal material that can be adsorbed.

8. The loading and unloading device for sheet metal before and after forming according to claim 1, characterized in that: The bracket wheels are fixedly installed at the four corners of the bottom of the box and are swivel wheels with brakes.

9. The loading and unloading device for sheet metal before and after forming according to claim 1, characterized in that: The traction wheels are fixedly installed at the four corners of the bottom of the traction device and are swivel wheels with brakes.

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