A PVC sheet piler

Abstract

The application relates to a PVC sheet stacking machine, belonging to the PVC sheet processing field, which comprises a conveying mechanism and a stacking mechanism. The stacking mechanism comprises a supporting base, a rotating base, an ion fan arranged on the supporting base, a plurality of stacking racks connected to the rotating base in a lifting sliding mode, and a lifting assembly for driving the stacking racks to lift. The plurality of stacking racks and the rotating base are arranged around the ion fan. A driving motor is arranged on the supporting base. The driving motor drives the rotating base to rotate and drives the plurality of stacking racks to enter the conveying path of the feeding mechanism in sequence. The conveying mechanism conveys the PVC sheets to the stacking racks. The ion fan is arranged on the stacking mechanism, and the surface static electricity of the sheets entering the stacking racks is eliminated in sequence. The ion fan does not need to be covered in a large area, and the manufacturing cost of the ion fan is reduced.

Description

Technical Field

[0001] This utility model belongs to the technical field of PVC sheet processing, and specifically refers to a PVC sheet stacking machine. Background Technology

[0002] Stacker cranes are core equipment in sheet production lines, primarily used for collecting, sorting, stacking, and transferring sheets. During the stacking process, the high-intensity static electricity generated by the friction between the PVC sheets and the conveyor belt, clamps, and between layers causes the stacked sheets to adhere tightly due to electrostatic attraction, increasing the difficulty of subsequent separation.

[0003] To reduce the impact of static electricity on sheet materials during processing, most production lines use ion fans to neutralize the charge. However, in high-speed production lines, the sheet materials are transported at high speeds, and the effective range of the ion fans is limited. This requires covering a large area of ​​the sheet material transport path with ion fans to eliminate static electricity, which increases production costs and needs to be improved. Summary of the Invention

[0004] The purpose of this invention is to provide a PVC sheet stacking machine to solve the technical problems mentioned in the background section.

[0005] This utility model is implemented as follows:

[0006] A PVC sheet stacker includes a conveying mechanism and a stacking mechanism. The stacking mechanism includes a support base, a rotating chassis, an ion fan mounted on the support base, a plurality of stacking frames that are lifted and slidably connected to the rotating chassis, and a lifting assembly for driving the stacking frames to rise and fall. The plurality of stacking frames and the rotating chassis are arranged around the ion fan. A drive motor is provided on the support base. The drive motor drives the rotating chassis to rotate, causing the plurality of stacking frames to sequentially enter the conveying path of the feeding mechanism. The conveying mechanism conveys PVC sheets to the stacking frames.

[0007] By adopting the above technical solution, the transmission mechanism conveys the sheet material to the stacking rack, and the ion fan eliminates static electricity on the sheet material on the stacking rack. By installing the ion fan on the stacking mechanism, static electricity is eliminated sequentially on the surface of the sheet material entering the stacking rack, eliminating the need for a large area to cover the ion fan, which helps to reduce the manufacturing cost of the ion fan.

[0008] Preferably, the conveying mechanism includes a loading platform, a conveyor belt disposed on the loading platform, and a clamping assembly slidably connected to the loading platform. The loading platform has a loading area in the middle, and the conveyor belt and the clamping assembly are respectively located on opposite sides of the loading area. The loading platform is provided with an electric push rod, which drives the clamping assembly to move horizontally to the loading area to clamp the sheet. The conveyor belt drives the clamping assembly and the clamped sheet to move to the stacking rack. The clamping assembly is used to separate the clamped sheet from the other sheets.

[0009] By adopting the above technical solution, the sheets are clamped together on the stacking rack by the clamping assembly, which is beneficial for the spacing of the sheets on the stacker and for the full neutralization of the surface charge of the sheets.

[0010] Preferably, the lifting assembly drives the stacking frame to descend by the position of one clamping assembly. The clamping assembly has a clamping opening for inserting the sheet material. The upper end face of the clamping assembly has a positioning groove. The lower part of the clamping assembly has a guide post. The positioning groove is for the guide post of another clamping assembly to be inserted and positioned. The stacking frame has a positioning groove for the guide post of the lowest clamping assembly to be inserted. There is a gap between adjacent clamping assemblies stacked together. The vertical projection of the clamping opening is located within the gap.

[0011] By adopting the above technical solution, during the stacking process of the conveyor belt-driven clamping assembly and the clamped sheets on the stacking rack, for each sheet stacked, the lifting assembly drives the stacking rack to descend one clamping assembly, so that the positioning slots of the uppermost clamping assembly are positioned on the moving path of the guide posts of the clamping assemblies on the conveyor belt. After stacking is completed, the weight of the clamping assemblies and the sheets acts on the lower clamping assemblies, which helps to reduce the pressure on the lower sheets.

[0012] Preferably, the clamping assembly includes a sliding part slidably connected to the loading platform and a clamping part slidably connected to the sliding part. The clamping opening is opened on the sliding part. The positioning groove and the guide post are both provided on the sliding part. The clamping part extends into the clamping opening and abuts against the sheet to fix it. The lower end of the clamping part extends out of the sliding part to abut against the conveyor belt. An elastic pad is provided on the sliding part. The elastic pad supports the clamping part so that the clamping part abuts against the upper inner wall of the clamping opening. The distance between the lower end of the clamping part and the conveyor belt is consistent with the sheet thickness.

[0013] By adopting the above technical solution, during the stacking process, the electric push rod drives the sliding part to move closer to the sheet, so that the sheet is inserted between the clamping part and the upper inner wall of the clamping opening. During the insertion of the sheet, the clamping part moves downward to abut against the conveyor belt. The friction between the clamping part and the conveyor belt drives the clamping assembly to move closer to the stacking frame, eliminating the need for frequent control of the conveyor belt to start and stop.

[0014] Preferably, both the clamping part and the sliding part are provided with insulating buffer pads, and the sliding part and the clamping part abut against the sheet through the insulating buffer pads.

[0015] By adopting the above technical solution, the insulating buffer pad is used to press the sheet tightly, making it less likely to leave marks on the surface of the sheet during the clamping process.

[0016] Preferably, the clamping part includes a clamping head that is vertically and slidably connected to the sliding part and an adjusting rod that is threadedly connected to the clamping head. The adjusting rod is used to abut against the conveyor belt, and the rotation axis of the adjusting rod is vertically arranged.

[0017] By adopting the above technical solution, when the thickness of the stacked sheets changes, the adjusting rod is rotated, and the adjusting rod slides into or out of the clamping head through the threaded engagement between the adjusting rod and the clamping head, thereby adjusting the distance between the end of the adjusting rod and the conveyor belt.

[0018] Preferably, the sliding part is provided with a weight reduction cavity.

[0019] By adopting the above technical solution, the weight of the clamping components is reduced by opening a weight-reducing cavity, which helps to reduce the pressure on the stacking rack after stacking is completed.

[0020] Preferably, the stacking includes a support platform that is lifted and slidably connected to the rotating chassis, and a base frame one and a base frame two that are slidably connected to the support platform. The base frame one and the base frame two move closer to or further away from each other. The base frame one and the base frame two are each provided with a positioning groove two. The base frame one and the base frame two respectively support the clamping assemblies located on both sides of the feeding area. The base frame one and the base frame two are each provided with a limiting post. The clamping assembly has a limiting port at the end near the ion fan. The limiting post is engaged with the limiting port. The support platform is provided with a drive motor, and the drive motor drives the base frame one and the base frame two to move.

[0021] By adopting the above technical solution, when the sheets are stacked on one of the stacking racks, the rotating base rotates and drives the stacking rack to rotate away from the conveying path of the conveying mechanism, so that the other stacking rack enters the conveying path of the conveying mechanism. The drive motor drives the base frame one and base frame two on the stacking rack to move away from each other. Through the cooperation between base frame one, base frame two, limit post and clamp assembly, the clamp assembly is driven to move and detach from the sheets, so that the sheets are stacked together under the action of gravity, which is convenient for binding and transporting the sheets and for recycling the clamp assembly.

[0022] The outstanding advantages of this utility model compared to the prior art are:

[0023] 1. This utility model eliminates static electricity on the surface of sheets entering the stacking rack by installing an ion fan on the stacking mechanism, without the need for a large area to cover the ion fan, which helps to reduce the manufacturing cost of the ion fan.

[0024] 2. This utility model uses a clamping assembly to hold the sheets together and stack them on the stacking rack, which is beneficial for the spacing of the sheets on the stacker and for the full neutralization of the surface charge of the sheets;

[0025] 3. In the stacking process, the electric push rod drives the sliding part to move closer to the sheet, so that the sheet is inserted between the clamping part and the upper inner wall of the clamping opening. During the insertion of the sheet, the clamping part moves downward and abuts against the conveyor belt. The friction between the clamping part and the conveyor belt drives the clamping assembly to move closer to the stacking frame, without the need to frequently control the start and stop of the conveyor belt. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0027] Figure 2 This is a partial structural diagram of the present invention, mainly showing the structure of the stacking mechanism;

[0028] Figure 3 This is a partial structural diagram of the present invention, mainly showing the structure of the conveying mechanism;

[0029] Figure 4 This is a partial structural diagram of the present invention, mainly showing the connection between the clamp assembly and the conveyor belt;

[0030] Figure 5 This is a partial sectional view of the present invention, mainly showing the internal structure of the fixture assembly.

[0031] Reference numerals in the accompanying drawings: 1. Conveying mechanism; 11. Loading platform; 111. Loading area; 112. Electric push rod; 12. Conveyor belt; 13. Clamp assembly; 131. Sliding part; 1311. Clamping port; 1312. Guide post; 1313. Positioning groove one; 1314. Weight reduction cavity; 1315. Limiting port; 132. Clamping part; 1321. Clamping head; 1322. Adjusting rod; 1323. Inclined surface; 133. Insulating buffer pad 1. 134. Adjustment hole; 135. Elastic pad; 2. Stacking mechanism; 21. Support base; 211. First servo motor; 22. Rotating chassis; 23. Ion fan; 24. Stacking rack; 241. Support platform; 242. Base frame one; 243. Base frame two; 244. Drive motor; 245. Positioning groove two; 246. Limiting post; 25. Lifting assembly; 251. Second servo motor; 252. Reciprocating screw; 3. Sheet; 4. Gap. Detailed Implementation

[0032] The present invention will be further described below with reference to specific embodiments:

[0033] This application discloses a PVC sheet stacking machine, see [link to relevant documentation]. Figure 1 and Figure 2The system includes a conveying mechanism 1 and a stacking mechanism 2. The conveying mechanism 1 is used to clamp the sheet 3 and convey the sheet 3 to the stacking mechanism 2. The stacking mechanism 2 includes a support base 21, a rotating chassis 22, an ion fan 23, a stacking frame 24, and a lifting assembly 25. The support base 21 has an inverted T-shaped cross-section in the vertical direction. The ion fan 23 is fixed on the support base 21 and is located above the rotating chassis 22, facing the conveying mechanism 1. The rotating chassis 22 is rotatably connected to the support base 21, and the rotation axis of the rotating chassis 22 is vertically set. A first servo motor 211 is installed on the support base 21, and the first servo motor 211 drives the rotating chassis 22 to rotate. There are several stacking racks 24. The position and number of lifting components 25 correspond one-to-one with the position and number of stacking racks 24. In this embodiment, there are 3 stacking racks 24. The stacking racks 24 are located on the upper end of the rotating chassis 22. The stacking racks 24 and the rotating chassis 22 are arranged around the support base 21 and the ion fan 23. The sheets 3 are stacked on the stacking racks 24. The ion fan 23 eliminates static electricity on the sheets 3 located on the stacking racks 24 between the conveying mechanism 1 and the support base 21. The lifting components 25 drive the corresponding stacking racks 24 to rise and fall.

[0034] See Figure 1 and Figure 3 The conveying mechanism 1 includes a loading platform 11, a conveyor belt 12, and a clamping assembly 13. The loading platform 11 is divided into loading areas 111, and the sheet 3 is transported to the loading area 111. The conveyor belt 12 is located on both sides of the loading area 111, and the conveying direction of the conveyor belt 12 is parallel to the distribution direction of the conveying mechanism 1 and the stacking mechanism 2. There are several clamping assemblies 13, with two clamping assemblies 13 forming a group. The clamping assemblies 13 in the same group are located on opposite sides of the loading mechanism. Two electric push rods 112 are fixed on the loading platform 11. The electric push rods 112 are located on opposite sides of the loading area 111, and the distribution direction of the electric push rods 112 is parallel to the sliding direction of the same group of clamping assemblies 13. The electric push rods 112 are used to push the clamping assembly 13 to move closer to the clamping sheet. The conveyor belt 12 is used to move the clamping assembly 13 and the clamped sheet 3 to the stacking rack 24 after the clamping assembly 13 clamps the sheet 3.

[0035] See Figure 4 and Figure 5The clamping assembly 13 includes a sliding part 131 and a clamping part 132. The clamping part 132 is connected to the sliding part 131 in a lifting and sliding manner. The sliding part 131 has a clamping port 1311 at one end near the feeding area 111, and the clamping port 1311 is used to insert the sheet 3. The clamping part 132 includes a clamping head 1321 and several adjusting rods 1322. The upper end of the clamping head 1321 is located inside the clamping opening 1311. An insulating buffer pad 133 is fixed on the sliding part 131. The insulating buffer pad 133 is located inside the clamping opening 1311 and is arranged around the outer periphery of the clamping head 1321. The insulating buffer pad 133 supports the clamping head 1321, causing the clamping head 1321 to tend to abut against the upper inner wall of the clamping opening 1311. The insulating buffer pad 133 shrinks after being squeezed and returns to its shape after being relieved of force. The upper end surface of the clamping head 1321 is machined with a slope 1323, which slopes downward in the direction close to the feeding area 111. When the sheet 3 is inserted between the clamping head 1321 and the upper inner wall of the clamping opening 1311, the sheet 3 abuts against the slope 1323, causing the clamping head 1321 to move downward. The lower end of the clamping head 1321 extends through the sliding part 131. Several adjustment holes 134 are provided on the lower end face of the clamping head 1321. The position and number of adjustment holes 134 correspond one-to-one with the position and number of adjustment rods 1322. The adjustment rods 1322 are threadedly connected to the inner walls of the corresponding adjustment holes 134. The axis of the adjustment rods 1322 is vertically oriented. The adjustment rods 1322 slide into or out of the corresponding adjustment holes 134 through the threaded engagement with the sliding part 131, thereby adjusting the length of the adjustment rods 1322 extending out of the sliding part 131. In this embodiment, the insulating buffer pad 133 is a rubber pad.

[0036] See Figure 4 and Figure 5 Elastic pads 135 are fixed at the ends of the clamping opening 1311 and the clamping part that are close to each other. The elastic pads 135 are rubber pads or silicone pads. The insulating buffer pad 133 supports the clamping head 1321, so that the elastic pads 135 between the clamping head 1321 and the upper inner wall of the clamping opening 1311 are pressed against each other. When the sheet 3 is clamped and positioned, the elastic pads 135 press against both ends of the sheet 3, making it less likely to damage the surface of the sheet 3.

[0037] When the clamping assembly 13 is not clamping the sheet 3, the distance between the lower end of the adjusting rod 1322 and the conveyor belt 12 is the same as the thickness of the sheet 3. When the clamping assembly clamps the sheet 3, the lower end of the adjusting rod 1322 abuts against the conveyor belt 12, and the operation of the conveyor belt 12 drives the clamping assembly 13 and the clamped sheet 3 to move to the stacking rack 24.

[0038] See Figure 2 and Figure 5The stacking rack 24 includes a support platform 241, a base frame 1 242, and a base frame 243. The lifting assembly 25 drives the support platform 241 to rise and fall. The base frame 1 242 and the base frame 243 are located above the support platform 241 and are horizontally slidably connected to the support platform 241. When the stacking rack 24 is located between the support base 21 and the conveying mechanism 1, the distribution direction of the base frame 1 242 and the base frame 243 is parallel to the distribution direction of the same set of clamping assemblies 13. The base frame 1 242 and the base frame 243 slide closer to or further away from each other. A drive motor 244 is fixed on the support platform 241 and is located between the base frame 1 242 and the base frame 243. The drive motor 244 drives the base frame 1 242 and the base frame 243 to move closer to or further away from each other. The upper surfaces of the base frame 1 242 and the base frame 243 are provided with positioning grooves 245. Positioning groove 245 passes through base frame 1 242 and base frame 2 243 near the end of the feeding mechanism. Base frame 1 242 and base frame 2 243 are used to receive the sliding part 131 of the clamping sheet 3.

[0039] See Figure 2 and Figure 5 A guide post 1312 is formed on the lower end face of the sliding part 131, and the guide post 1312 protrudes from the lower end face of the sliding part 131. After the sliding part 131 and the clamped sheet 3 are stacked, the guide post 1312 of the lowermost sliding part 131 is inserted into the positioning groove 245.

[0040] See Figure 2 and Figure 5 The upper end face of the sliding part 131 is provided with a positioning groove 1313. The cross-sectional shape of the positioning groove 1313 is the same as that of the guide post 1312. When the sliding parts 131 are stacked on the base frame 242 or the base frame 243, the positioning groove 1313 allows the guide post 1312 of the next sliding part 131 to be engaged and positioned. This allows the sheets 3 on the stacking frame 24 to be spaced apart, facilitating the ion fan 23 to perform static electricity elimination treatment on the surface of the sheets 3.

[0041] See Figure 5 The sliding part 131 has a weight reduction cavity 1314, which reduces the weight of the clamp assembly 13 and helps to reduce the pressure of the clamp assembly 13 on the stacking rack 24.

[0042] See Figure 2 and Figure 5The lifting assembly 25 includes a second servo motor 251 and a reciprocating lead screw 252. The reciprocating lead screw 252 is rotatably connected to the rotating chassis 22. The second servo motor 251 drives the reciprocating lead screw 252 to rotate. The sliding joint on the reciprocating lead screw 252 is fixed to the support platform 241, causing the support platform 241 to rise and fall, so that the uppermost positioning groove 1313 and positioning groove 245 are located in the moving path of the guide column 1312. The second servo motor 251 drives the reciprocating lead screw 252 to control the support platform 241 to descend by one sliding part 131 position each time.

[0043] See Figure 2 and Figure 5 Both base frame 1 242 and base frame 243 are fixed with limiting posts 246. The axis of the limiting post 246 is vertical. The limiting post 246 is located above the base frame 1 242 and base frame 243. The limiting post 246 is located on the side of the positioning groove 245 near the ion fan 23. The sliding part 131 has a limiting port 1315 at the end near the ion fan 23. The limiting port 1315 passes through the sliding part 131 in a vertical direction and allows the limiting post 246 to be engaged. When one of the stacking racks 24 is completed, the limiting post 246 on the stacking rack 24 engages with the limiting port 1315 to limit several sliding parts 131. The first servo motor 211 drives the rotating base to rotate, causing the stacking rack 24 to move away from the loading platform 11, so that the next stacking rack 24 can enter between the loading platform 11 and the support base 21. The drive motor 244 on the stacking rack 24 drives the base frame 1 242 and the base frame 243 to move away from each other, so that the sheet 3 is separated from the sliding part 131 and stacked together.

[0044] See Figure 2 and Figure 5 When the sliding parts are stacked on the stacking rack 24, there is a gap 4 between adjacent sliding parts 131, and the projection of the clamping opening 1311 in the vertical direction is located within the gap 4.

[0045] The implementation principle of this application embodiment is as follows: the ion fan 23 is installed on the stacking mechanism 2, and the sheet 3 is stacked on the stacking mechanism 2 at intervals by the clamp assembly 13. The ion fan 23 can fully eliminate static electricity on the surface of the stacked sheet 3, and reduce the stickiness between adjacent sheet 3 after the sheet 3 is separated from the sliding part 131 and stacked together.

[0046] The above embodiments are only one of the preferred embodiments of this utility model and are not intended to limit the scope of implementation of this utility model. Therefore, all equivalent changes made in accordance with the shape, structure and principle of this utility model should be covered within the protection scope of this utility model.

Claims

1. A PVC sheet stacker, comprising a conveying mechanism (1) and a stacking mechanism (2), characterized in that: The stacking mechanism (2) includes a support base (21), a rotating chassis (22), an ion fan (23) mounted on the support base (21), a plurality of stacking racks (24) connected to the rotating chassis (22) by lifting and sliding, and a lifting assembly (25) for driving the stacking racks (24) to rise and fall. The plurality of stacking racks (24) and the rotating chassis (22) are arranged around the ion fan (23). The support base (21) is provided with a drive motor (244). The drive motor (244) drives the rotating chassis (22) to rotate and drive the plurality of stacking racks (24) to enter the conveying path of the conveying mechanism (1) in sequence. The conveying mechanism (1) conveys the sheet (3) to the stacking racks (24).

2. The PVC sheet stacker according to claim 1, characterized in that: The conveying mechanism (1) includes a loading platform (11), a conveyor belt (12) disposed on the loading platform (11), and a clamping assembly (13) slidably connected to the loading platform (11). The loading platform (11) has a loading area (111) in the middle. The conveyor belt (12) and the clamping assembly (13) are located on opposite sides of the loading area (111). The loading platform (11) is provided with an electric push rod (112). The electric push rod (112) drives the clamping assembly (13) to move horizontally to the loading area (111) to clamp the sheet (3). The conveyor belt (12) drives the clamping assembly (13) and the clamped sheet (3) to move to the stacking rack (24). The clamping assembly (13) is used to separate the clamped sheet (3) from the other sheets (3).

3. A PVC sheet stacker according to claim 2, characterized in that: The lifting component (25) drives the stacking frame (24) to descend by one clamping component (13). The clamping component (13) has a clamping opening (1311) for inserting the sheet (3). The upper end face of the clamping component (13) has a positioning groove (1313). The clamping component (13) has a guide post (1312) below it. The positioning groove (1313) is used for the guide post (1312) on another clamping component (13) to be inserted and positioned. The stacking frame (24) has a positioning groove (1313). The positioning groove (1313) is used for the guide post (1312) of the lowest clamping component (13) to be inserted. There is a gap (4) between adjacent clamping components (13) stacked together. The vertical projection of the clamping opening (1311) is located in the gap (4).

4. A PVC sheet stacker according to claim 3, characterized in that: The clamping assembly (13) includes a sliding part (131) slidably connected to the loading table (11) and a clamping part (132) slidably connected to the sliding part (131). The clamping opening (1311) is opened on the sliding part (131). The positioning groove (1313) and the guide post (1312) are both provided on the sliding part (131). The clamping part (132) extends into the clamping opening (1311) to abut against the plate. The material (3) is fixed, and the lower end of the clamping part (132) extends out of the sliding part (131) to abut against the conveyor belt (12). The sliding part (131) is provided with an elastic pad (135). The elastic pad (135) supports the clamping part (132) so that the clamping part (132) abuts against the upper inner wall of the clamping port (1311). The distance between the lower end of the clamping part (132) and the conveyor belt (12) is consistent with the thickness of the sheet (3).

5. A PVC sheet stacker according to claim 4, characterized in that: Both the clamping part (132) and the sliding part (131) are provided with insulating buffer pads (133), and the sliding part (131) and the clamping part (132) are pressed together by the insulating buffer pads (133).

6. A PVC sheet stacker according to claim 4, characterized in that: The clamping part (132) includes a clamping head (1321) that is vertically and slidably connected to the sliding part (131) and an adjusting rod (1322) that is threadedly connected to the clamping head (1321). The elastic pad (135) supports the clamping head (1321). The adjusting rod (1322) is used to abut against the conveyor belt (12). The axis of the adjusting rod (1322) is vertically arranged.

7. A PVC sheet stacker according to claim 4, characterized in that: The sliding part (131) is provided with a weight reduction cavity (1314).

8. A PVC sheet stacker according to claim 3, characterized in that: The stacking rack (24) includes a support platform (241) that is slidably connected to the rotating chassis (22), a base frame one (242) and a base frame two (243) that are slidably connected to the support platform (241). The base frame one (242) and the base frame two (243) can move closer to or further away from each other. The base frame one (242) and the base frame two (243) are each provided with a positioning groove two (245). The base frame one (242) and the base frame two (243) respectively support the material loading area. (111) The clamping assemblies (13) on both sides, the first base frame (242) and the second base frame (243) are provided with limiting posts (246), the clamping assembly (13) has a limiting port (1315) at one end near the ion fan (23), the limiting post (246) is inserted into the limiting port (1315), the support platform (241) is provided with a drive motor (244), the drive motor (244) drives the first base frame (242) and the second base frame (243) to move.

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