A high-speed stacker and method

Abstract

The present invention relates to the field of diaper packaging equipment, in particular to a high-speed stacker and method. The high-speed stacker includes a feeding device, a material aligning device, a slider group, and a track. The slider group includes a plurality of sliders, a front baffle and a rear baffle respectively arranged on different sliders. Each slider can move independently on the track. A stacking space for accommodating materials is formed between the front baffle and the rear baffle. The feeding device and the material aligning device are respectively arranged on both sides of the track. The feeding device includes a feeding port, and the feeding port faces the stacking space. The material aligning device includes a plurality of flexible blades and a conveyor belt. The flexible blades are evenly spaced on the conveyor belt. Materials enter the stacking space from the feeding port, and the flexible blades push the materials to stack towards the rear baffle. At the same time, the slider carrying the rear baffle moves backward a certain distance, so that a gap for the next material to enter is formed between the flexible blade and the front baffle. The present invention has high efficiency and low cost, and realizes automatic operation.

Description

Technical Field

[0001] The present invention relates to the field of diaper packaging equipment, in particular to a high-speed stacker and method. Background Art

[0002] In the production process of diapers, generally, manual labor is used to put stacks of diapers into packaging bags. Since many diapers need to be put into one packaging bag, it takes a lot of time, thus reducing the production efficiency of diapers. To solve the above problems, a Chinese patent with the authorization announcement number CN 110217433 U discloses a bladeless stacker and its process, including a main frame. Adjustable-height support legs are provided below the main frame. A control system for controlling each driving device is provided on the main frame. A stacking device, a piling device, and a receiving device are provided on the main frame. The stacking device includes a number of conveying components that can operate at different speeds in cooperation with each other, and is arranged on one side of the discharge end of the sanitary product equipment. Each conveying component is arranged parallel and in contact with each other, and a number of retaining pieces are provided on the conveying component. A twisting device is provided on one side of the stacking device. The twisting device and the discharge end of the sanitary product are respectively arranged on both sides of the stacking device. The twisting device is provided with a vertically arranged twisting belt, and a number of twisting blades are provided on the twisting belt. The angle between the twisting blade and the twisting belt is an acute angle. The twisting belt is driven by a driving device to drive the twisting blades to rotate in a cycle. The twisting direction of the twisting blades is the same as the conveying direction of the stacking device. A retaining rod assembly is provided on one side of the twisting device. A circular sliding rail is provided on one side of the stacking device. A number of third retaining pieces are provided on each conveying component. One side of the third retaining piece is slidably connected to the circular sliding rail. The twisting wheel is provided with a number of twisting blades with arc structures. The end part of the twisting blade near the end is located above the conveying component. In the existing device, sanitary products fall into the gaps between adjacent twisting blades and are driven to be stacked. The twisting is performed using the twisting blades. And because the differential operation of the belt is not accurate enough, it is easy to make the stacking of sanitary products uneven. Summary of the Invention

[0003] The main object of the present invention is to overcome the shortcomings of the prior art and provide a high-speed stacker with automation, high efficiency, and low cost.

[0004] To achieve the above object, the technical solution adopted by the present invention is as follows:

[0005] A high-speed stacker, comprising a feeding device, a material arranging device, a slider group, and a track. The slider group includes a plurality of sliders, a front baffle and a rear baffle respectively arranged on different sliders. Each slider can move independently on the track. A stacking space for accommodating materials is formed between the front baffle and the rear baffle. The feeding device and the material arranging device are respectively arranged on both sides of the track. The feeding device includes a feeding port which faces the stacking space. The material arranging device includes a plurality of flexible blades and a conveyor belt. The flexible blades are evenly spaced on the conveyor belt. Materials enter the stacking space from the feeding port. The flexible blades push the materials to stack towards the rear baffle. At the same time, the slider carrying the rear baffle moves backward a certain distance, so that a gap for the next material to enter is formed between the flexible blade and the front baffle.

[0006] Further, the track includes an annular support rail, a magnetic levitation drive assembly, and a belt drive assembly. The belt drive assembly and the magnetic levitation drive assembly are connected end to end and form an annular structure adapted to the annular support rail. The slider can slide on the annular support rail and move around the annular support rail through the magnetic levitation drive assembly and the belt drive assembly. The annular support rail includes an output section and a return section. The slider is driven by the magnetic levitation drive assembly in the output section, and the slider is driven by the belt drive assembly in the return section.

[0007] Further, the magnetic levitation drive assembly includes a stator part extending in the length direction and a plurality of rotor parts respectively arranged on each slider. The magnetic levitation drive assembly can drive each slider to move independently on the annular support rail.

[0008] Further, the stator part includes a plurality of output sections, and the output sections are densely arranged along the length direction.

[0009] Further, the belt drive assembly includes a driving wheel, a toothed belt arranged around the driving wheel, and convex teeth arranged on the slider. The annular support rail includes an upper straight part, a lower straight part, and two arc parts. The two arc parts are respectively arranged between the upper straight part and the lower straight part and connect the upper straight part and the lower straight part. The upper straight part forms the output section, and the lower straight part and the two arc parts form the return section. The driving wheel is correspondingly arranged at the positions of the two arc parts.

[0010] Further, convex parts are arranged on both sides below the slider, and a concave part is arranged between the two convex parts. Convex teeth are respectively arranged at the convex part and the concave part. At the lower straight part, the convex teeth of the convex part are engaged with the toothed belt, and at the arc part, the convex teeth of the convex part and the concave part are jointly engaged with the toothed belt.

[0011] Furthermore, the slider group also includes a plurality of supporting cross bars, which are arranged on the slider at intervals. The supporting cross bars on different sliders are not connected to each other, and the supporting cross bars between two adjacent sliders are staggered so that the supporting cross bars on the slider can penetrate into the intervals between the two supporting cross bars on the adjacent sliders. The sliders move relative to each other so that each supporting cross bar forms a support platform that can be extended and retracted along the conveying direction.

[0012] Furthermore, a middle slider is provided between the slider with the front baffle and the slider with the rear baffle, and the supporting cross bars on the middle slider extend toward the front and rear sides respectively. The supporting cross bars on the slider with the front baffle and the slider with the rear baffle extend toward the middle slider respectively and can be inserted between the two supporting cross bars of the middle slider.

[0013] Furthermore, the conveyor belt is provided with a number of mounting positions, which are arranged in a circular array along the conveyor belt. The mounting positions include a convex block body and a concave block body. The convex surface of the convex block body cooperates with the concave surface of the concave block body. The flexible blade is vertically clamped between the convex surface and the concave surface, so that the flexible blade is arc-shaped, and the flexible blade has an arched support structure. When the flexible blade rotates to between the front baffle and the rear baffle, the arc-shaped concave surface of the flexible blade faces the direction of the rear baffle.

[0014] A method for a high-speed stacker, the method steps are as follows:

[0015] Step 1: The front baffle and the rear baffle are driven by the slider to move on the track to the working range of the feeding device and the material handling device. At this time, there is a stacking space for accommodating materials between the front baffle and the rear baffle, and the feeding port of the feeding device faces the stacking space. Then the feeding device drives the materials into the stacking space;

[0016] In step 2, the flexible blade of the material-forming device is driven by the conveyor belt into the stacking space, and the flexible blade pushes the material toward the rear baffle so that the material is clamped between the flexible blade and the rear baffle. At the same time, the slider carrying the rear baffle moves backward for a distance, so that a gap is formed between the flexible blade and the front baffle to accommodate the next material to enter. Since the flexible blade is deformable, the material that has entered the stacking space is always clamped between the flexible blade and the rear baffle during the movement of the slider carrying the rear baffle.

[0017] In step three, the feeding device drives the next material into the stacking space through the gap formed in step two. Then, the conveyor belt drives the next flexible blade into the stacking space and moves the material toward the rear baffle, so that the material is stacked with the previous material. The previous flexible blade is pulled out from between the materials under the drive of the conveyor belt. At the same time, the slider carrying the rear baffle moves backward again for a distance, so that a gap is formed between the flexible blade and the front baffle to accommodate the next material.

[0018] Step 4: Repeat Step 3 until a sufficient number of materials are stacked in the stacking space. The feeding device stops feeding, the front baffle moves backward, and the stacked materials are clamped between the front baffle and the rear baffle. The slider drives the front baffle and the rear baffle to move, and the stacked materials are sent out along the track.

[0019] As can be seen from the above description of the present invention, compared with the prior art, the beneficial effects of the present invention are as follows:

[0020] The present invention adopts a magnetic levitation drive assembly, which can freely and separately control the independent movement of the slider, improving the accuracy and precision of the slider movement, and enabling independent control of each slider group without interference; the setting of the material aligning device can quickly align the stacked materials and prevent the materials from tilting during the stacking process; the slider group forms a support platform that can expand and contract along the conveying direction to control the stacking space for materials that can be accommodated between the front baffle and the rear baffle; the setting of the track saves the floor area of the equipment; the present invention has high efficiency, low cost, and realizes automated operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 is a schematic diagram of the overall structure of the high-speed stacker in the specific embodiment of the present invention.

[0022] Figure 2 is the Figure 1 enlarged view at A in

[0023] Figure 3 is a schematic diagram of the structure of the slider group in the specific embodiment of the present invention.

[0024] Figure 4 is a top view of the high-speed stacker in the specific embodiment of the present invention.

[0025] Figure 5 is the Figure 4 enlarged view at B in

[0026] Figure 6 is another perspective view of the high-speed stacker in the specific embodiment of the present invention.

[0027] Figure 7 is the Figure 6 enlarged view at C in

[0028] Figure 8 is a front view of the high-speed stacker in the specific embodiment of the present invention.

[0029] Figure 9 is the Figure 8 enlarged view at D in

[0030] Figure 10is a specific embodiment of the present invention Figure 8 partial enlarged view.

[0031] Figure 11 is a side view of the high-speed stacker of the specific embodiment of the present invention.

[0032] Figure 12 is a specific embodiment of the present invention Figure 11 enlarged view at position E in

[0033] Figure 13 is a specific embodiment of the present invention Figure 11 enlarged view at position F in

[0034] In the figure: 11. Ring support rail, 111. Upper straight part, 112. Lower straight part, 113. Arc part, 121. Stator part, 122. Rotor part, 131. Driving wheel, 132. Gear belt, 2. Slide block group, 21. Slide block, 211. Front baffle, 212. Rear baffle, 22. Support cross bar, 23. Gap, 3. Stocking device, 31. Flexible blade, 32. Conveyor belt, 321. Installation position, 322. Convex block body, 323. Concave block body, 33. Motor, 4. Feeding device, 41. Feeding port, 5. Packaging device, 6. Diaper. Specific embodiment

[0035] The present invention will be further described below through specific embodiments.

[0036] Refer to Figures 1 to 13 , a high-speed stacker of the present invention includes a track, a slide block group 2, a stocking device 3, a feeding device 4, a packaging device 5, and a diaper 6.

[0037] The track includes a circular support rail 11, a maglev drive assembly, and a belt drive assembly. The belt drive assembly is connected end to end with the maglev drive assembly and forms an annular structure adapted to the circular support rail 11. Each slider 21 is slidably disposed on the circular support rail 11 and moves around the circular support rail 11 through the maglev drive assembly and the belt drive assembly. The circular support rail 11 includes an output section and a return section. The slider 21 is driven by the maglev drive assembly in the output section and is driven by the belt drive assembly in the return section. The maglev drive assembly includes a stator portion 121 extending in the length direction and a plurality of rotor portions 122 respectively disposed on each slider 21. The maglev drive assembly can drive each slider 21 to move independently on the circular support rail 11. The stator portion 121 includes a plurality of output sections, and each output section is arranged densely in the length direction. The belt drive assembly includes a drive wheel 131, a toothed belt 132 arranged around the drive wheel 131, and a convex tooth disposed on the slider 21. The circular support rail 11 includes an upper straight portion 111, a lower straight portion 112, and two arc portions 113. The two arc portions 113 are respectively disposed between the upper straight portion 111 and the lower straight portion 112 and are respectively connected to the upper straight portion 111 and the lower straight portion 112. The upper straight portion 111 forms the above-mentioned output section, and the lower straight portion 112 and the two arc portions 113 form the above-mentioned return section. The drive wheel 131 is correspondingly disposed at the positions of the two arc portions 113.

[0038] A plurality of slider groups 2 are arranged on the track. Each slider group 2 includes a plurality of sliders 21, a front baffle 211 and a rear baffle 212 respectively arranged on different sliders 21. The front baffle 211 and the rear baffle 212 are both provided with notches for accommodating the flexible blade 31 to pass through. The notches are in a "U" shape and are arranged facing the blanking device 3. Each slider 21 can move independently on the track. A stacking space for accommodating materials is formed between the front baffle 211 and the rear baffle 212. The slider group 2 further includes a plurality of support crossbars 22. The support crossbars 22 are arranged on the sliders 21 at intervals. There is no connection between the support crossbars 22 on different sliders 21. The support crossbars 22 between adjacent two sliders 21 are arranged in a staggered manner, so that the support crossbars 22 on the sliders 21 can penetrate into the intervals between two support crossbars 22 on the adjacent sliders 21. By the mutual movement of the sliders 21, each support crossbar 22 forms a support platform that can expand and contract along the conveying direction. There is also a middle slider 21 between the slider 21 provided with the front baffle 211 and the slider 21 provided with the rear baffle 212. The support crossbars 22 of the middle slider 21 extend towards the front and rear sides respectively. The support crossbars 22 on the slider 21 provided with the front baffle 211 and the slider 21 provided with the rear baffle 212 extend towards the middle slider 21 respectively and can penetrate between two support crossbars 22 of the middle slider 21. The setting of the middle slider 21 increases the elongation range of the slider group 2, so that the stacking space for accommodating materials between the front baffle 211 and the rear baffle 212 is increased. Since there is no connection between the support crossbars 22 on different sliders 21, when each slider group 2 passes through the arc portion 113 of the annular support rail 11, the support crossbars 22 on different sliders 21 can be actively tilted upwards to pass through the arc portion 113 and enter the straight portion.

[0039] On both sides below each slider 21, there are protruding portions 213. There is a recessed portion 214 between the two protruding portions 213. Convex teeth are respectively provided on the protruding portions 213 and the recessed portion 214. At the lower straight portion 112, the convex teeth of the protruding portion 213 are engaged with the gear belt 132. At the arc portion 113, the convex teeth of the protruding portion 213 and the recessed portion 214 are jointly engaged with the gear belt 132.

[0040] The material-forming device 3 includes a plurality of flexible blades 31, a conveyor belt 32, and a motor 33. The flexible blades 31 are evenly spaced on the conveyor belt 32. The motor 33 drives the conveyor belt 32 to rotate, thereby driving the flexible blades 31 to rotate in a circular manner around the conveyor belt 32. The conveyor belt 32 is provided with a plurality of mounting positions 321. The mounting positions 321 are arranged in a circular array along the conveyor belt 32. The mounting positions 321 include convex blocks 322 and concave blocks 323. The convex surface of the convex block 322 cooperates with the concave surface of the concave block 323. The flexible blades 31 are vertically clamped between the convex and concave surfaces, giving the flexible blades 31 an arc shape. The flexible blades 31 also have an arched support structure. When the flexible blades 31 are under stress, the arched support structure fails and the flexible blades 31 are in a bent state. When the flexible blades 31 are not under stress, the arched support structure recovers, causing the flexible blades 31 to return to their original state. When the flexible blade 31 rotates to between the front baffle 211 and the rear baffle 212 , the arc-shaped concave surface of the flexible blade 31 faces the rear baffle 212 .

[0041] The feeding device 4 and the material handling device 3 are respectively arranged on both sides of the track. The feeding device 4 is used to transport the material to the front baffle 211 and the rear baffle 212 of the slider group 2 to form a stacking space for accommodating the material. The feeding device 4 includes a feed port 41, and the feed port 41 is facing the stacking space. The material enters the stacking space from the feed port 41. When the flexible blade 31 moves the material to stack in the direction of the rear baffle 212, the arched support structure of the flexible blade 31 fails. At the same time, the slider carrying the rear baffle 212 moves backward a distance, so that a gap 23 is formed between the flexible blade 31 and the front baffle 211 to accommodate the next material to enter.

[0042] The working steps of this high-speed stacker are as follows:

[0043] In step 1, the magnetic suspension drive assembly drives the slider group 2 to move in the output section, thereby driving the front baffle 211 and the rear baffle 212 to move into the working range of the feeding device 4 and the material sorting device 3. At this time, there is a stacking space for accommodating diapers 6 between the front baffle 211 and the rear baffle 212. The feeding port 41 of the feeding device 4 faces the stacking space, and then the feeding device 4 drives the diapers 6 into the stacking space;

[0044] Step 2: The flexible blade 31 of the blanking device 3 is driven by the conveyor belt 32 into the stacking space. The flexible blade 31 deflects the diaper 6 towards the rear baffle 212, clamping the diaper 6 between the flexible blade 31 and the rear baffle 212. At the same time, the slider carrying the rear baffle 212 moves backward a certain distance, creating a gap 23 between the flexible blade 31 and the front baffle 211 to allow the next diaper 6 to enter. Since the flexible blade 31 is deformable, during the movement of the slider 21 carrying the rear baffle 212, the flexible blade 31 provides a blocking force to the diaper 6, keeping the diaper 6 that has entered the stacking space clamped between the flexible blade 31 and the rear baffle 212. At this time, the flexible blade 31 is subjected to the reaction force of the blocking force, causing the arched support structure of the flexible blade 31 to fail and the flexible blade 31 to be in a bent state;

[0045] Step 3: The feeding device 4 drives the next diaper 6 to enter the stacking space through the gap formed in Step 2. Subsequently, the conveyor belt 32 drives the next flexible blade 31 into the stacking space to deflect the diaper 6 towards the rear baffle 212, stacking the diaper 6 with the previous diaper 6. The previous flexible blade 31 is withdrawn from between the diapers 6 under the drive of the conveyor belt 32. At the same time, the slider carrying the rear baffle 212 moves backward a certain distance again, creating a gap 23 between the flexible blade 31 and the front baffle 211 again to allow the next diaper 6 to enter;

[0046] Step 4: Repeat Step 3. Each slider 21 moves independently, stretching each support crossbar 22 into a support platform with the required stacking space until a sufficient number of diapers 6 are stacked in the stacking space. The feeding device 4 stops feeding, and the front baffle 211 moves backward to clamp the stacked diapers 6 between the front baffle 211 and the rear baffle 212. The slider 21 drives the front baffle 211 and the rear baffle 212 to move, moving the stacked diapers 6 to the packaging device 5;

[0047] Step 5: After the diaper 6 is packaged at the packaging device 5, the empty slider group 2 continues to move forward. The slider group 2 moves from the upper straight portion 111 to the arc portion 113. The convex teeth on the protruding portion 213 and the concave portion 214 below the slider 21 engage with the gear belt 132. Since there is no mutual connection between the support crossbars 22 on the slider group 2, the support crossbars 22 can move upward flexibly, enabling the slider group 2 to smoothly pass through the arc portion 113. The slider group 2 returns to the output section under the drive of the belt drive assembly and repeats the above steps.

[0048] The above is only a specific embodiment of the present invention, but the design concept of the present invention is not limited thereto. Any non-substantive modification made to the present invention using this concept shall fall within the scope of infringement of the protection of the present invention.

Claims

1. A high-speed stacker, characterized in that: The material collecting device comprises a feeding device, a material collecting device, a slider group and a track. The slider group comprises a plurality of sliders, a front baffle and a rear baffle respectively arranged on different sliders. Each slider can move independently on the track. A stacking space for accommodating materials is formed between the front baffle and the rear baffle. The feeding device and the material collecting device are respectively arranged on both sides of the track. The feeding device comprises a feeding port, which faces the stacking space direction. The material collecting device comprises a plurality of flexible blades and a conveyor belt. Each flexible blade is evenly spaced and arranged on the conveyor belt. The material enters the stacking space from the feeding port. The flexible blades move the material to be stacked in the direction of the rear baffle. At the same time, the slider carrying the rear baffle moves backward for a distance, so that a gap for accommodating the entry of the next material is formed between the flexible blade and the front baffle. The track includes an annular support rail, a magnetic levitation drive assembly, and a belt drive assembly. The belt drive assembly and the magnetic levitation drive assembly are connected end to end to form an annular structure that is compatible with the annular support rail. The slider is slidably arranged on the annular support rail and moves around the annular support rail through the magnetic levitation drive assembly and the belt drive assembly. The annular support rail includes an output section and a return section. The slider is driven by the magnetic levitation drive assembly in the output section and by the belt drive assembly in the return section. The magnetic levitation drive assembly includes a stator portion extending in the length direction and a plurality of mover portions respectively located on each slider. The magnetic levitation drive assembly can drive each slider to move independently on the annular support rail. The conveyor belt is provided with a number of mounting positions, which are arranged in a circular array along the conveyor belt. The mounting positions include convex blocks and concave blocks. The convex surface of the convex block matches the concave surface of the concave block. The flexible blade is vertically clamped between the convex surface and the concave surface, so that the flexible blade is arc-shaped, and the flexible blade has an arched support structure. When the flexible blade rotates to between the front baffle and the rear baffle, the arc-shaped concave surface of the flexible blade faces the direction of the rear baffle.

2. The high-speed stacker according to claim 1, characterized in that: The stator portion includes a plurality of output sections, and the output sections are densely arranged along the length direction.

3. A high-speed stacker according to claim 1, characterized in that: The belt drive assembly includes a driving wheel, a gear belt arranged around the driving wheel, and convex teeth provided on the slider. The annular support rail includes an upper straight portion, a lower straight portion, and two arc-shaped portions. The two arc-shaped portions are respectively arranged between the upper straight portion and the lower straight portion and respectively connect the upper straight portion and the lower straight portion. The upper straight portion forms the output section, the lower straight portion and the two arc-shaped portions form the return section, and the driving wheel is correspondingly arranged at the positions of the two arc-shaped portions.

4. A high-speed stacker according to claim 3, characterized in that: Protrusions are provided on both sides of the lower side of the slider, and a recessed portion is provided between the two protruding portions. The protruding portions and the recessed portions are each provided with convex teeth. At the lower straight portion, the convex teeth of the protruding portions are engaged with the gear belt, and at the arc portion, the convex teeth of the protruding portions and the recessed portions are engaged with the gear belt together.

5. A high-speed stacker according to claim 1, characterized in that: The slider group further includes a plurality of support crossbars which are arranged on the sliders at intervals. The support crossbars on different sliders are not connected to each other. The support crossbars between adjacent sliders are arranged in a staggered manner, so that the support crossbars on the sliders can penetrate into the intervals between two adjacent support crossbars on the adjacent sliders. By moving the sliders relative to each other, the support crossbars form a support platform that can expand and contract along the conveying direction.

6. The high-speed stacker according to claim 5, characterized in that: There is also a middle slider between the slider with a front baffle and the slider with a rear baffle. The support crossbars on the middle slider extend towards the front and rear sides respectively. The support crossbars on the slider with a front baffle and the slider with a rear baffle extend towards the middle slider respectively and can penetrate between two adjacent support crossbars on the middle slider.

7. A method of a high-speed stacker, characterized in that: For a high-speed stacker according to any one of claims 1-6, the method steps are as follows: Step 1: The front baffle and the rear baffle are driven by the sliders to move on the track to the working ranges of the feeding device and the material arranging device. At this time, there is a stacking space for accommodating materials between the front baffle and the rear baffle. The feeding port of the feeding device faces the stacking space. Subsequently, the feeding device drives the materials into the stacking space. Step 2: The flexible blades of the material arranging device are driven by the conveyor belt into the stacking space. The flexible blades push the materials towards the rear baffle, so that the materials are clamped between the flexible blades and the rear baffle. At the same time, the slider carrying the rear baffle moves backward a certain distance, so that a gap for the next material to enter is formed between the flexible blades and the front baffle. Since the flexible blades can be deformed, during the movement of the slider carrying the rear baffle, the materials that have entered the stacking space always remain clamped between the flexible blades and the rear baffle. Step 3: The feeding device drives the next material to enter the stacking space from the gap formed in Step 2. Subsequently, the conveyor belt drives the next flexible blade into the stacking space to push the material towards the rear baffle, so that the material is stacked with the previous material. The previous flexible blade is withdrawn from between the materials under the drive of the conveyor belt. At the same time, the slider carrying the rear baffle moves backward a certain distance again, so that a gap for the next material to enter is formed between the flexible blades and the front baffle again. Step 4: Repeat Step 3 until a sufficient number of materials are stacked in the stacking space. The feeding device stops feeding. The front baffle moves backward to clamp the stacked materials between the front baffle and the rear baffle. The sliders drive the front baffle and the rear baffle to move, and send the stacked materials out along the track.

Images