Cover opening and film taking device
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-30
- Publication Date
- 2026-03-20
AI Technical Summary
In existing contact lens removal equipment, the pin mechanism is prone to damaging the lens, and manual removal is inefficient, resulting in high cost and low efficiency.
Design a lens opening and removal device, including a rotary clamping mechanism, a pressing mechanism and a collecting mechanism. The device achieves flexible clamping by rotating the material tray and the rotary clamping assembly, providing appropriate clamping force for lens opening and removal operations, and avoiding lens damage.
It improved the pass rate of finished contact lens inspection, reduced costs, increased production efficiency, and avoided damage to materials during the lens opening and removal process.
Smart Images

Figure CN224015287U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to contact lens production equipment technical field, specifically related to a device for opening cover and taking piece before contact lens finished product defect detection. BACKGROUND
[0002] It is known that in the production process of contact lenses, when the contact lens finished product production is completed, the finished product needs to be detected for defects, and the opening cover and taking piece link is needed before detection, if the manual taking piece mode is used, the manpower will be consumed, and the efficiency of manual taking piece is also lower, therefore, the equipment specially used for taking piece of contact lens finished product needs to be taken, in the existing contact lens finished product taking equipment, the thimble mechanism is usually arranged in the structure of the lower cover, when the tray reaches the "take upper cover station", the lower cover cylinder works, the lower cover plate presses the tray lower cover, the thimble is lifted from the bottom to a distance, until the upper cover (the upper and lower covers are both plastic materials) is ejected, when the thimble contacts the lower cover and lifts upward, the lower cover will be deformed because the body is a plastic material, there is a risk of damaging the lens, therefore, a rotary clamp device capable of flexibly clamping the upper cover on the tray is needed, the opening cover and taking piece sequence operation of the material on the tray is provided with suitable clamping force, the damage of the material in the opening cover and taking piece link is avoided, the passing rate of the lens in the detection link is improved, the cost expenditure is reduced, and the production efficiency is improved. SUMMARY
[0003] Therefore, the utility model aims at providing an opening cover and taking piece device capable of flexibly performing opening cover and taking piece operation and avoiding damage of the material in the opening cover and taking piece link.
[0004] In order to realize the purpose of the utility model, the utility model provides an opening cover and taking piece device, which comprises a rotary clamping mechanism, a lower pressing mechanism, a collecting mechanism and a mounting seat body, the rotary clamping mechanism and the lower pressing mechanism are installed on the mounting seat body, the collecting mechanism is arranged on a connecting platform body in a spaced mode with the mounting seat body, the collecting mechanism comprises a rotary driving piece and a rotary tray, the rotary clamping mechanism comprises a rotary clamping assembly and a rotary clamping driving piece, part of the tray body of the rotary tray is arranged below the lower pressing mechanism, the rotary driving piece is used for driving the rotary tray below the lower pressing mechanism to rotate in a first direction, the lower pressing mechanism is used for forming a spaced pressing force on the rotary tray, and the rotary clamping driving piece is used for driving the rotary clamping assembly to reciprocatingly clamp and recover the material towards the rotary tray.
[0005] Preferably, the rotary clamping assembly comprises a rotary clamping jaw and a jaw connecting seat body, one end of the jaw connecting seat body is connected with the rotary clamping driving piece, and the rotary clamping driving piece comprises a rotary clamping jaw descending cylinder and a rotary cylinder.
[0006] Preferably, one end of the clamping jaw connecting seat body is connected with the rotary clamping jaw descending air cylinder, the other end of the clamping jaw connecting seat body is connected with the rotary clamping jaw, and a clamping driving element is arranged on the clamping jaw connecting seat body, which is used for controlling the clamping force of the rotary clamping jaw.
[0007] Preferably, the rotary clamping jaw is provided with a clamping jaw piece body, the clamping jaw piece body is provided with a connecting column body and a chuck body, the connecting column body is a rectangular connecting column body, the chuck body is an inverted trapezoidal chuck body, the connecting column body and the chuck body are integrally connected, and the clamping jaw piece body is connected to the other end of the clamping jaw connecting seat body through a clamping jaw connecting piece.
[0008] Preferably, the clamping jaw piece body is provided with a first clamping jaw piece body and a second clamping jaw piece body, and the first clamping jaw piece body and the second clamping jaw piece body are connected to the clamping jaw connecting seat body to form a clamping space with a circular lower end.
[0009] Preferably, the rotary clamping jaw descending air cylinder and the rotary air cylinder are both installed on the mounting seat body, the mounting seat body is provided with a top mounting surface and a front mounting surface, the rotary air cylinder is installed on the top mounting surface of the mounting seat body through a connecting plate, and the rotary clamping jaw descending air cylinder is connected to the rotary air cylinder through a T-shaped connecting plate seat.
[0010] Preferably, the downward pressing mechanism comprises a pressing cover air cylinder and a pressing cover plate, the pressing cover air cylinder is installed on the front mounting surface of the mounting seat body through a connecting plate, a power output end of the pressing cover air cylinder is connected with the pressing cover plate, a material taking hole is arranged on the edge of the pressing cover plate, the material taking hole is a circular hole in the middle, a cross-shaped communication hole is arranged around the circular hole, the cross-shaped communication hole is in communication with the circular hole and is integrally formed into a special-shaped material taking hole, a notch is arranged near the edge of the cross-shaped communication hole of the material taking hole, and the size of the material taking hole is set according to the size of the circular clamping space formed by the clamping jaw piece body.
[0011] Preferably, a plurality of material taking holes are arranged, each of the material taking holes is arranged at intervals, and a plurality of rotary clamping jaws are arranged, the clamping direction of each rotary clamping jaw corresponds to each material taking hole.
[0012] Preferably, the rotary material disc is provided with a material placing station, a lower cover taking station, a piece taking station and an upper cover taking station, each station is arranged in a square matrix on the rotary material disc, a rotary driving element is arranged below the rotary material disc, the rotary material disc is rotationally connected with the rotary driving element, and a segmentation mechanism is further arranged below the rotary material disc, the segmentation mechanism is arranged adjacent to the rotary material disc, and the segmentation mechanism is used for stabilizing the movement structure of the rotary material disc during rotation.
[0013] Preferably, the mounting seat body is a trapezoidal mounting seat body, which is mounted on a connecting platform body through a mounting bottom plate, the connecting platform body is a movable cabinet body, and the connecting platform bottom is connected with movable rollers and support columns.
[0014] The open-cover and sheet-taking device has the advantages that the rotary clamping assembly can flexibly clamp the upper cover on the tray, appropriate clamping force is provided to sequentially operate the open-cover and sheet-taking of the material on the tray, damage of the material in the open-cover and sheet-taking link is avoided, and the pass rate of the lens in the detection link is improved. BRIEF DESCRIPTION OF DRAWINGS
[0015] The above and other objects, features and advantages of the present application will become more apparent from the following detailed description when taken in conjunction with the accompanying drawings. In the drawings like reference numerals refer to like elements throughout. The embodiments disclosed in the drawings are intended to illustrate but not to limit the present application; the drawings are not necessarily drawn to scale; emphasis is instead placed upon illustrating the principles of the present application.
[0016] Figure 1 FIG. 1 is a plan view of the open-cover and sheet-taking device of the present application;
[0017] Figure 2 FIG. 2 is a schematic view of a preferred embodiment of the open-cover and sheet-taking device of the present application;
[0018] Figure 3 FIG. 3 is a schematic view of another angle of the open-cover and sheet-taking device of the present application;
[0019] Figure 4 FIG. 4 is an enlarged view of part A in FIG. 2. Figure 3
[0020] In the figure: 1, rotating clamp mechanism; 2, pressing mechanism; 21, pressing cover cylinder; 22, pressing cover plate; 3, collecting mechanism; 31, rotating driving part; 32, rotating material disc; 33, material discharging station; 34, cover removing station; 35, sheet taking station; 4, mounting seat body; 5, connecting platform body; 6, clamping jaw connecting piece; 7, clamping space; 8, T-shaped connecting plate seat; 9, material taking hole; 11, rotating clamp assembly; 12, rotating clamp driving part; 13, rotating clamp jaw; 131, jaw piece body; 1311, first jaw piece body; 1312, second jaw piece body; 132, connecting column body; 133, chuck body; 14, jaw connecting seat body; 15, rotating clamp jaw descending cylinder; 16, rotating cylinder; 17, dividing mechanism; 18, moving roller; 19, supporting column body. DETAILED DESCRIPTION
[0021] In order to facilitate the understanding of the present application, the following will be described more fully with reference to the relevant drawings.
[0022] It should be noted that when an element is considered to be "connected" to another element, it can be directly connected to the other element and integrated as a whole, or a middle element can exist at the same time. The terms "mounting", "one end", "the other end" and similar expressions used herein are only for the purpose of illustration.
[0023] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terms used in the specification herein are only for the purpose of describing specific embodiments and are not intended to limit the present application. The term "and / or" used herein includes any and all combinations of one or more related listed items.
[0024] As Figures 1-4The utility model discloses a preferred embodiment provides a kind of uncovering and taking device, including rotary clamp mechanism 1, lower pressure mechanism 2, collection mechanism 3 and mounting seat body 4, rotary clamp mechanism 1 and lower pressure mechanism 2 are installed on mounting seat body 4, collection mechanism 3 is spaced apart and is arranged on connecting platform body 5 with mounting seat body 4, collection mechanism 3 includes rotary drive part 31 and rotary tray 32, rotary clamp mechanism 1 includes rotary clamp assembly 11 and rotary clamp drive part 12, the part tray body of rotary tray 32 is arranged below lower pressure mechanism, rotary tray 32 is used to place the material to be carried out uncovering and taking, automatically independent feeding is carried out by additional feeding mechanism, and the material is mainly contact lens finished product to be carried out finished product defect detection, rotary drive part 31 is used to drive rotary tray 32 to be located below lower pressure mechanism 2 and carry out first direction rotation, when operating, clockwise direction or counterclockwise direction is 90 ° as a rotation base point, and continuous rotation is carried out, and it is convenient to carry out uncovering, taking and other procedures on rotary tray, lower pressure mechanism 2 is used to form interval pressure on rotary tray, when taking operation, lower pressure mechanism is used to press the lower cover of material, and it is convenient for rotary clamp assembly to take upper cover, rotary clamp drive part 12 is used to drive rotary clamp assembly 11 and carry out reciprocating clamping recovery operation towards the material of rotary tray 32, and rotary clamp assembly 11 provides suitable clamping force and carries out uncovering and taking sequence operation on the material on tray, reduces the damage of lens, specifically, the position of connecting platform body is close to rotary clamp mechanism It is also provided with recovery barrel (not shown) for recycling upper cover body, and the upper cover of contact lens box is recycled into recovery barrel.
[0025] Reference Figures 1-4 As shown in the preferred embodiment, rotary clamp assembly 11 includes rotary clamp jaw 13 and jaw connecting seat body 14, one end of jaw connecting seat body 14 is connected with rotary clamp drive part 12, rotary clamp drive part 12 includes rotary clamp jaw lowering cylinder 15 and rotary cylinder 16, and the driving force of rotary clamp jaw lowering cylinder 15 drives jaw connecting seat body to move up and down towards rotary tray 32.
[0026] Reference Figures 1-4 As shown in the preferred embodiment, one end of jaw connecting seat body 14 is connected with rotary clamp jaw lowering cylinder 15, the other end of jaw connecting seat body 14 is connected with rotary clamp jaw 13, and a clamping drive part is arranged on jaw connecting seat body 14 (whether the description here is correct, whether there is a cylinder structure to control the clamping force of the jaw), and the clamping drive part is used to control the clamping force of rotary clamp jaw. When operating, the jaw is opened to clamp the upper cover.
[0027] Reference Figures 1-4As shown, in the preferred embodiment, the rotary clamp clamping jaw 13 is provided with multiple sets, and the clamping jaw connecting seat body 14 is also provided with multiple sets of corresponding clamping jaw connecting seat bodies. In this embodiment, the rotary clamp clamping jaw 13 is provided with five sets or more, and each set of rotary clamp clamping jaw 13 is provided with a clamping jaw piece body 131, which is provided with a connecting column body 132 and a chuck body 133. The connecting column body 132 is a rectangular connecting column body, and the chuck body 133 is an inverted trapezoidal chuck body. The connecting column body 132 and the chuck body 133 are integrally connected, and are arranged as a clamping jaw piece body with an upper part body being a rectangular connecting column body and a lower part body being an inverted trapezoidal chuck body. The purpose is to adapt to the cover of the contact lens to be clamped and to provide stable clamping force. The clamping jaw piece body 131 is connected to the other end of the clamping jaw connecting seat body through the clamping jaw connecting piece 6. One end of the clamping jaw connecting piece 6 is connected to two clamping jaw piece bodies, and the other end is connected to a clamping driving element (not shown). The structure principle of the clamping driving element is a standard cylinder, such as a swing air claw structure principle. The clamping driving element drives the two clamping jaw piece bodies 131 to stretch and clamp.
[0028] Reference Figures 1-4 As shown, in a further preferred embodiment, the clamping jaw piece body 131 is provided with a first clamping jaw piece body 1311 and a second clamping jaw piece body 1312. The first clamping jaw piece body 1311 and the second clamping jaw piece body 1312 are connected to the clamping jaw connecting seat body to form a clamping space 7 with a circular lower end. The circular clamping space 7 is arranged according to the common shape of the upper cover of the contact lens product box, facilitating the rotary clamp clamping jaw 13 to quickly clamp and take the upper cover, and then perform the piece taking operation.
[0029] Reference Figures 1-4 As shown, in a further preferred embodiment, the rotary clamp clamping jaw descending air cylinder 15 and the rotary air cylinder 16 are both installed on the mounting seat body 4. The mounting seat body 4 is provided with a top mounting surface and a front mounting surface. The rotary air cylinder is installed on the top mounting surface of the mounting seat body through a connecting plate. The rotary air cylinder is installed on different mounting surfaces and works cooperatively. The rotary clamp clamping jaw descending air cylinder 15 is connected to the rotary air cylinder 16 through a T-shaped connecting plate seat 8. The T-shaped connecting plate seat 8 is rotationally connected to the rotary air cylinder 16. After the rotary air cylinder 16 is started, it drives the T-shaped connecting plate seat to rotate, which synchronously drives the rotary clamp mechanism to rotate by 180 degrees or more, facilitating the clamping operation of the rotary clamp mechanism. After the rotary clamp clamping jaw clamps the upper cover, the rotary air cylinder drives the rotary clamp mechanism to rotate by 180 degrees, recycling the upper cover into the recycling barrel on the connecting platform body. The T-shaped connecting plate seat 8 is stably arranged to ensure the structural stability of the rotary clamp clamping jaw descending air cylinder 15 during operation.
[0030] Reference Figures 1-4As shown, in further preferred embodiments, the pressing mechanism 2 comprises a pressing cover cylinder 21 and a pressing cover plate 22, the pressing cover cylinder 21 is installed on the front mounting surface of the mounting seat body through a connecting plate, the power output end of the pressing cover cylinder 21 is connected to the pressing cover plate 22, a material taking hole 9 is formed on the edge of the pressing cover plate 22, the material taking hole 9 is a circular hole in the middle, and a cross-shaped communication hole is formed around the circular hole, the cross-shaped communication hole is in communication with the circular hole and is integrally formed as a special-shaped material taking hole, a notch is arranged at the position close to the edge of the material taking hole 9, the size of the material taking hole 9 is set corresponding to the circular clamping space formed by the jaw piece body, the material taking hole corresponding to the shape of the contact lens cover body and the shape of the jaw is set, and the purpose is to facilitate the extension of the rotating jaw 13 into the material taking hole 9 for opening and taking the lens piece after the pressing cover plate presses the lower cover, so as to achieve the effect of easy opening.
[0031] Reference Figures 1-4 As shown, in further preferred embodiments, the material taking hole 9 is provided with a plurality of material taking holes 9, each of which is arranged at intervals, and the rotating jaw 13 is also provided with a plurality of rotating jaws 13, the clamping direction of each rotating jaw corresponds to each material taking hole, and a plurality of sets of material taking holes 9 and rotating jaws 13 are correspondingly arranged, so as to improve the efficiency of opening and taking the lens piece and further improve the efficiency of finished product detection.
[0032] Reference Figures 1-4 As shown, in further preferred embodiments, the rotating disc 32 is provided with a material placing station 33, a lower cover taking station 34, a lens piece taking station 35 and an upper cover taking station 36, each station is distributed in a square matrix on the rotating disc, and each station is also arranged adjacent to each other, the rotating driving member 31 is arranged below the rotating disc 32, and the rotating disc 32 is rotationally connected with the rotating driving member 31, in operation, the rotating disc 32 rotates by 90°, which is equivalent to moving one station for operation, the pressing cover cylinder drives the pressing cover plate to descend from the upper cover taking station, until the pressing cover plate is pressed against the lower cover of the lens disc, at this time, the rotating jaw cylinder 15 descends to the working position, and the upper cover is clamped for the first time with appropriate clamping force for a certain period of time, then the rotating disc rotates by 90°, and then the upper cover is released, the rotating disc rotates by 90° again, and the upper cover is clamped for the second time with appropriate clamping force for a certain period of time, and finally the upper cover is clamped and recycled, the rotating jaw 13 places the upper cover in the recycling barrel on the connecting platform body, and the upper cover is clamped out through three clamping actions, the first and second times are in a loose state, and the third time clamps the upper cover and recycles it, the rotating disc 32 is further provided with a segmentation mechanism 17, the segmentation mechanism 17 is arranged adjacent to the rotating disc, and the segmentation mechanism is used to stabilize the structure of the rotating disc during rotation, so as to ensure that the structure of the rotating disc is more stable during rotation, facilitate the clamping operation of the rotating jaw, and the technical operation principle of the segmentation mechanism is prior art, which is not described in the embodiments.
[0033] Reference Figures 1-4As shown, in further preferred embodiments, the mounting seat body 4 is a trapezoidal mounting seat body, which is mounted on the connecting platform body 5 through a mounting bottom plate, the connecting platform body 5 is a movable cabinet body, the cabinet body is provided with a controller and connecting elements of each driving mechanism, the controller includes PLC whole machine control, and other components and elements for ensuring the smooth operation of the cover opening and film taking operation are also provided, the connecting platform body 5 is connected with movable rollers 18 and support columns 19 at the bottom, and the movable rollers facilitate the movement of the whole device in the production workshop and facilitate the detection work of contact lenses.
[0034] The beneficial effects of the utility model are: the utility model provides a cover opening and film taking device, which is provided with a rotating and clamping mechanism, a pressing mechanism and a collecting mechanism, the rotating and clamping mechanism and the pressing mechanism are mounted on a mounting seat body, the collecting mechanism comprises a rotating driving part, the rotating and clamping mechanism comprises a rotating and clamping assembly and a rotating and clamping driving part, the rotating driving part is used for driving a rotating tray to rotate in a first direction below the pressing mechanism, the pressing mechanism is used for forming interval pressing force on the rotating tray, and the rotating and clamping driving part is used for driving the rotating and clamping assembly to reciprocatingly clamp and recover materials towards the rotating tray, the cover opening and film taking device provided by the utility model can flexibly clamp the cover on the tray through the rotating and clamping assembly, can provide appropriate clamping force to sequentially operate the cover opening and film taking of the materials on the tray, can avoid damage of the materials in the cover opening and film taking link, and can improve the passing rate of the lenses in the detection link.
[0035] In the present application, unless specifically defined and limited otherwise, a first feature "on" or "under" a second feature can be directly in contact with the second feature, or indirectly in contact with the second feature through an intermediate medium. Moreover, the first feature "over", "above", and "on" the second feature can be directly above or obliquely above the second feature, or only means that the first feature is higher than the second feature in horizontal height. The first feature "under", "below", and "under" the second feature can be directly below or obliquely below the second feature, or only means that the first feature is lower than the second feature in horizontal height.
[0036] In the description of the present application, the description of the terms "preferred embodiment", "further embodiment", "other embodiment", or "specific example" means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are contained in at least one embodiment or example of the present application. In the present application, the illustrative description of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner. In addition, the skilled in the art can combine and combine the different embodiments or examples described in the present application and the features of the different embodiments or examples without contradiction.
[0037] The above examples only express several implementation manners of the utility model, the description is more specific and detailed, but can not therefore be understood as the limitation of the utility model patent scope. It should be pointed out that for ordinary skilled person in the art, without departing from the concept of the utility model, several modifications and improvements can be made, which belong to the protection scope of the utility model. Therefore, the protection scope of the utility model patent should be subject to the appended claims.
Claims
1. A device for opening and removing tablets, characterized in that: The device includes a clamping mechanism, a pressing mechanism, a collecting mechanism, and a mounting base. The clamping mechanism and the pressing mechanism are mounted on the mounting base. The collecting mechanism is spaced apart from the mounting base on a connecting platform. The collecting mechanism includes a rotary drive and a rotating material tray. The clamping mechanism includes a clamping assembly and a clamping drive. A portion of the rotating material tray is positioned below the pressing mechanism. The rotary drive drives the rotating material tray to rotate in a first direction below the pressing mechanism. The pressing mechanism applies intermittent downward pressure to the rotating material tray. The clamping drive drives the clamping assembly to perform a reciprocating clamping and recycling operation on the rotating material tray.
2. The device for opening and removing the sheet according to claim 1, characterized in that, The rotary clamp assembly includes a rotary clamping jaw and a jaw connecting seat. One end of the jaw connecting seat is connected to the rotary clamping drive component. The rotary clamping drive component includes a rotary clamping jaw lowering cylinder and a rotating cylinder.
3. The device for opening and removing the sheet according to claim 2, characterized in that, One end of the gripper connecting seat is connected to the rotary gripper lowering cylinder, and the other end of the gripper connecting seat is connected to the rotary gripper. The gripper connecting seat is provided with a clamping drive component, which is used to control the clamping force of the rotary gripper.
4. The device for opening and removing the sheet according to claim 2, characterized in that, The rotary clamp has a clamping jaw body, on which a connecting column and a clamping head are provided. The connecting column is a rectangular connecting column, and the clamping head is an inverted trapezoidal clamping head. The connecting column and the clamping head are integrally formed and connected. The clamping jaw body is connected to the other end of the clamping jaw connecting seat through a clamping jaw connecting piece.
5. The device for opening and removing the sheet according to claim 4, characterized in that, The gripper plate is provided with a first gripper plate and a second gripper plate. After the first gripper plate and the second gripper plate are connected to the gripper connecting seat, a gripping space with a circular lower end is formed.
6. The device for opening and removing the sheet according to claim 2, characterized in that, The rotary clamp lowering cylinder and the rotary cylinder are both mounted on the mounting base. The mounting base has a top mounting surface and a front mounting surface. The rotary cylinder is mounted on the top mounting surface of the mounting base through a connecting plate. The rotary clamp lowering cylinder is connected to the rotary cylinder through a T-shaped connecting plate seat.
7. The device for opening and removing the sheet according to claim 1, characterized in that, The pressing mechanism includes a pressing cover cylinder and a pressing cover plate. The pressing cover cylinder is mounted on the front mounting surface of the mounting base via a connecting plate. The power output end of the pressing cover cylinder is connected to the pressing cover plate. A material picking hole is provided on the side of the pressing cover plate. The material picking hole is a circular hole in the center, and a cross-shaped connecting hole is provided around the circular hole. The cross-shaped connecting hole is connected to the circular hole and is integrally formed into an irregularly shaped material picking hole. A notch is provided near the edge of the plate in the cross-shaped connecting hole of the material picking hole. The size of the material picking hole is set to correspond to the size of the circular clamping space formed by the gripper plate.
8. The device for opening and removing the sheet according to claim 7, characterized in that, The material picking holes are provided in multiple ways, with each material picking hole spaced apart. There are also multiple rotary clamping claws, with each rotary clamping claw facing the material picking hole in a corresponding gripping direction.
9. The device for opening and removing the sheet according to claim 1, characterized in that, The rotating material tray is equipped with a feeding station, a cap removal station, a sheet removal station, and a cap removal station. Each station is arranged in a square matrix on the rotating material tray. A rotation drive is located below the rotating material tray. The rotating material tray is rotatably connected to the rotation drive. A dividing mechanism is also provided below the rotating material tray. The dividing mechanism is arranged adjacent to the rotating material tray and is used to stabilize the motion structure when the rotating material tray rotates.
10. The device for opening and removing the sheet according to claim 1, characterized in that, The mounting base is trapezoidal and is mounted on the connecting platform via a mounting base plate. The connecting platform is a movable cabinet, with casters and support columns connected to the bottom of the platform.