Automatic lifting device for heavy load roll

Abstract

The utility model discloses a kind of heavy load material roll automatic lifting devices, including portal frame, it has on it;A pair of lifting plate, it is symmetrically slidably installed on the inner wall of portal frame, the top of each lifting plate is equipped with a material shaft clamping plate for carrying heavy load material roll, drive assembly, including tensioner group, synchronous belt and power mechanism, tensioner group is installed on the top and bottom of portal frame, two are vertically symmetrically provided in synchronous belt left and right, each synchronous belt is tensioned on tensioner group, each tensioner group is tensioned with the synchronous belt described in one, the power mechanism is installed on portal frame;The side surface of the lifting plate away from heavy load material roll accommodating space is fixedly connected with synchronous belt;The utility model realizes the automatic lifting transfer of heavy load material roll by lifting plate and drive assembly, without personnel assistance, significantly shorten feeding / discharge time, improve the continuity and efficiency of production line, simultaneously, equipment does not need personnel to keep watch, reduce labor consumption.

Description

Technical Field

[0001] This utility model relates to the field of heavy-duty material roll transportation technology, specifically an automatic lifting device for heavy-duty material rolls. Background Technology

[0002] Prepreg, as a core intermediate product in high-performance composite materials, requires the composite winding of release paper, PE film, and adhesive film. With the continuous expansion of the composite materials market, the production scale of prepreg has significantly increased. However, the following key issues arise during the production process:

[0003] (1) The characteristics of raw material rolls are complex: the maximum weight of the finished rolls of release paper, PE film and adhesive film is 400kg, and the diameter of the rolls of different series of products varies significantly (range of about 300-1500mm).

[0004] (2) Multi-level production needs: Some raw materials need to be lifted to the second floor of the workshop for composite processing. The existing transfer methods rely on manual operation of cranes or fixed-path gantry robots, which are inefficient and have insufficient positioning accuracy.

[0005] (3) Defects of existing transfer methods: high labor intensity, time-consuming transfer (10-15 minutes per operation), and risk of falling; fixed gantry robots can only cover fixed workstations, cannot adapt to different diameter rolls, and cannot realize reverse transfer of waste rolls / paper tubes; manual intervention is prone to damage to the surface of the rolls, increasing quality management costs;

[0006] In existing automatic lifting devices:

[0007] For example, an automatic lifting device with national patent number 202420448573.X focuses on improving the problem of operators bending over, but does not solve the vertical transfer needs of heavy-load material rolls (>200kg) and lacks the function of high-altitude waste recycling.

[0008] For example, an automatic lifting device for unwinding and rewinding of printed materials with national patent number 202222877297.2 is applied to the single-arm unwinding and rewinding scenario of printed materials. Its single-arm structure has insufficient load-bearing capacity (<150kg) and cannot adapt to the transfer of material rolls with dynamically changing diameters in the prepreg production line.

[0009] Therefore, we made technological improvements to the existing equipment to meet the usage requirements. Utility Model Content

[0010] The technical problem to be solved by this utility model is to address the shortcomings of the existing technology by providing an automatic lifting device for heavy-duty material rolls, which solves the problems of high labor intensity, large manpower input, low work efficiency, and high safety and quality risks caused by existing manual feeding and transportation.

[0011] The technical problem to be solved by this utility model is achieved through the following technical solution: an automatic lifting device for heavy-duty material rolls, which includes a gantry frame and has;

[0012] A pair of lifting plates are symmetrically slidably installed on the inner wall of the gantry, one on the left and one on the right. Each lifting plate has a material shaft clamping plate at the top for bearing heavy-duty material rolls. The space between the two material shaft clamping plates forms a heavy-duty material roll accommodating space.

[0013] The drive assembly includes a tensioner pulley group, a timing belt, and a power mechanism. The tensioner pulley group is installed at the top and bottom of the gantry. Two timing belts are vertically symmetrically arranged on the left and right sides. Each timing belt is tensioned on the tensioner pulley group. Each tensioner pulley group has one timing belt tensioned on it. The power mechanism is installed on the gantry and is configured to work in conjunction with the tensioner pulley group to provide power to the timing belt.

[0014] The side of the lifting plate away from the heavy-duty material roll receiving space is fixedly connected to the synchronous belt, thereby being driven to lift by the synchronous belt.

[0015] The technical problem to be solved by this utility model can also be achieved through the following technical solution: the above-mentioned heavy-duty material roll automatic lifting device, wherein the lifting plate is vertically arranged, the material shaft clamping plate is located in the middle of the top surface of the lifting plate, and the top of the material shaft clamping plate has a receiving groove for accommodating the material shaft of the heavy-duty material roll.

[0016] The technical problem to be solved by this utility model can also be achieved through the following technical solution: the above-mentioned heavy-duty material coil automatic lifting device, each set of tensioning wheel groups includes four bearings, two tensioning wheels and two adjusting bolt seats. The four bearings are rotatably installed at the top and bottom four corners of the gantry frame. The two tensioning wheels and the two adjusting bolt seats are placed on the top and bottom of the gantry frame. A sliding plate that can slide up and down is embedded on the outer wall of the adjusting bolt seat. The tensioning wheels are rotatably installed on the side wall of the sliding plate. A screw is screwed onto the adjusting bolt seat. One end of the screw is rotatably installed on the side wall of the sliding plate. The rotation of the screw drives the sliding plate and the tensioning wheels on it to move vertically.

[0017] The timing belt is tensioned between the outer circumferential surface of the bearing and the outer circumferential surface of the tensioning pulley.

[0018] The technical problem to be solved by this utility model can also be achieved through the following technical solution: In the above-mentioned heavy-duty material roll automatic lifting device, the side of the lifting plate away from the heavy-duty material roll accommodating space is the outer side of the lifting plate. A synchronous belt pressure plate and a synchronous belt support plate are provided on the outer side of the lifting plate. One side of the synchronous belt pressure plate and the synchronous belt support plate are bolted to the outer side of the lifting plate, and the other side is bolted to each other and clamped on the inner and outer sides of the synchronous belt, so as to keep the lifting plate and the synchronous belt relatively fixed as one.

[0019] The technical problem to be solved by this utility model can also be achieved through the following technical solution: In the above-mentioned heavy-duty material roll automatic lifting device, a slider is fixedly provided on the outer side of the lifting plate, and a slide rail for the slider to move vertically along the side wall of the gantry is fixedly provided.

[0020] The technical problem to be solved by this utility model can also be achieved through the following technical solution: the above-mentioned heavy-duty material roll automatic lifting device, wherein the power mechanism includes a drive motor fixed on the middle side wall of the gantry frame, and the power output end of the drive motor is connected to two drive half shafts. The middle outer circumferential surface of the drive half shaft is mounted on the middle side wall of the gantry frame through a bearing seat. The other end of the drive half shaft is connected to a synchronous belt drive, thereby transmitting the power from the drive motor to the synchronous belt.

[0021] The technical problem to be solved by this utility model can also be achieved through the following technical solution: In the above-mentioned heavy-duty material roll automatic lifting device, a pair of photoelectric switch brackets are provided at the top and bottom of the gantry frame, which are symmetrically arranged on the left and right sides of one of the material shaft clamping plates. A photoelectric beam switch is installed on each photoelectric switch bracket to detect the material coming into the top and bottom of the heavy-duty material roll in the heavy-duty material roll accommodating space.

[0022] The technical problem to be solved by this utility model can also be achieved through the following technical solution: the above-mentioned heavy-duty material roll automatic lifting device has an upper limit block and a lower limit block fixedly installed on the outer side of the lifting plate, one above the other, and mechanical limit switches that cooperate with the upper limit block and the lower limit block are installed on the top side wall and bottom side wall of the gantry.

[0023] The technical problem to be solved by this utility model can also be achieved through the following technical solution: the above-mentioned heavy-duty material roll automatic lifting device has an upper anti-collision limit block and a lower anti-collision limit block fixedly installed on the outer side of the lifting plate, one above the other, facing the side wall of the gantry. The installation height of the upper anti-collision limit block is higher than that of the upper limit stop block, and the installation height of the lower anti-collision limit block is lower than that of the lower limit stop block.

[0024] Compared with the prior art, the beneficial technical effects of this utility model are:

[0025] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0026] (1) This utility model realizes the automatic lifting and transfer of heavy-duty material rolls through the lifting plate and drive assembly, without the need for personnel assistance, which significantly shortens the loading / unloading time, improves the continuity and efficiency of the production line, and at the same time, the equipment does not require personnel to be on duty, reducing labor consumption;

[0027] (2) The current status of the heavy-duty material roll can be detected by the photoelectric photoelectric switch, including whether it has reached the lowest or highest position, to ensure the normal operation of the heavy-duty material roll in the lifting operation.

[0028] (3) By using upper limit stop, lower limit stop and mechanical limit switch, and in conjunction with upper anti-collision limit block and lower anti-collision limit block, it can ensure timely feedback when the lifting plate is raised or lowered to the lowest or highest position, thereby preventing mechanical collision and equipment damage, and greatly improving equipment safety and service life. Attached Figure Description

[0029] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0030] Figure 2 This is a partial structural diagram of the present invention from a left-side view and after the steel mesh has been removed;

[0031] Figure 3 This is a partial structural schematic diagram of the present invention from the main viewpoint after the steel mesh has been removed.

[0032] 1. Gantry frame; 2. Lifting plate; 3. Material shaft clamping plate; 4. Heavy-duty material roll; 5. Tensioner wheel; 6. Adjusting bolt seat; 7. Slide plate; 8. Screw; 9. Synchronous belt; 10. Power mechanism; 11. Synchronous belt pressure plate; 12. Synchronous belt support plate; 13. Slider; 14. Slide rail; 15. Lower anti-collision limit block; 16. Drive half shaft; 17. Photoelectric switch bracket; 18. Upper limit stop block; 19. Lower limit stop block; 20. Mechanical limit switch; 21. Upper anti-collision limit block. Detailed Implementation

[0033] The specific technical solutions of this utility model are further described below with reference to the accompanying drawings, so as to enable those skilled in the art to further understand this utility model, without constituting a limitation on its rights.

[0034] Example 1, referring to Figure 1-3 A heavy-duty material roll automatic lifting device includes a gantry frame 1, which can be a square frame welded and fixed together by several square beams. Its size and specifications can be selected according to the usage requirements. The outer wall of the gantry frame 1 can be fitted with a steel mesh to prevent personnel from accidentally touching the internal components, thereby causing damage or accidents. Square inspection ports can be opened at the top and bottom of the steel mesh, which have...

[0035] A pair of lifting plates 2, which are formed into a roughly square plate structure, may have square subtractive holes. They are symmetrically slidably installed on the inner wall of the gantry frame 1, one on the left and one on the right. Each lifting plate 2 has a material shaft clamping plate 3 at the top for bearing heavy-duty material rolls. The material shaft clamping plate 3 is formed into a roughly square plate structure. The space between the two material shaft clamping plates 3 forms a space for accommodating heavy-duty material rolls 4. The lifting plates 2 are set vertically. The material shaft clamping plate 3 is located in the middle of the top surface of the lifting plate 2. The top of the material shaft clamping plate 3 has a receiving groove for accommodating the material shaft of the heavy-duty material roll 4. The receiving groove may be a V-shaped groove.

[0036] The drive assembly includes a tensioning pulley group, a synchronous belt 9, and a power mechanism 10. The tensioning pulley group is installed at the top and bottom of the gantry frame 1. Two synchronous belts 9 are vertically symmetrically arranged on the left and right sides. Each synchronous belt 9 is tensioned on the tensioning pulley group. Each tensioning pulley group has one synchronous belt 9 tensioned on it. The power mechanism 10 is installed on the gantry frame 1 and is configured to work in conjunction with the tensioning pulley group to provide power to the synchronous belts 9. The side of the lifting plate 2 away from the heavy-duty material roll receiving space is fixedly connected to the synchronous belts 9, thereby being driven to lift by the synchronous belts 9.

[0037] Each tensioning wheel assembly includes four bearings, two tensioning wheels 5, and two adjusting bolt seats 6. The four bearings are rotatably mounted at the top and bottom corners of the gantry frame 1. A synchronous pulley can be fitted onto the outer circumference of the bearing to mesh with the inner circumference of the synchronous belt 9. The two tensioning wheels 5 and the two adjusting bolt seats 6 are placed on the top and bottom of the gantry frame 1. The adjusting bolt seat 6 is formed into a roughly square plate structure. A sliding plate 7 that can slide up and down is embedded in the outer wall of the adjusting bolt seat 6. The sliding plate 7 is formed into a roughly square plate structure. The tensioning wheels 5 are rotatably mounted on the side wall of the sliding plate 7. A screw 8 is screwed onto the adjusting bolt seat 6. One end of the screw 8 is rotatably mounted on the side wall of the sliding plate 7. The rotation of the screw 8 drives the sliding plate 7 and the tensioning wheels 5 on it to move vertically. The synchronous belt 9 is tensioned between the outer circumference of the bearing and the outer circumference of the tensioning wheel 5. The tensioning wheel 5 is driven to move closer to or away from the synchronous belt 9 by manually rotating the screw 8, thereby controlling the tension of the synchronous belt 9.

[0038] The side of the lifting plate 2 away from the heavy-duty material roll accommodating space is the outer side of the lifting plate 2. A synchronous belt pressure plate 11 and a synchronous belt support plate 12 are provided on the outer side of the lifting plate 2. The synchronous belt pressure plate 11 and the synchronous belt support plate 12 form a roughly square plate structure. One side of the synchronous belt pressure plate 11 and the synchronous belt support plate 12 is bolted to the outer side of the lifting plate 2, and the other side is bolted to each other and clamped on the inner and outer sides of the synchronous belt 9, so as to keep the lifting plate 2 and the synchronous belt 9 relatively fixed as one unit. The synchronous belt pressure plate 11 and the synchronous belt support plate 12 form a roughly angle steel structure with two right-angled sides. One right-angled side is fixed to the outer side of the lifting plate 2, and the other right-angled side is pressed against the synchronous belt 9.

[0039] In order to make the lifting plate 2 rise and fall more smoothly, a slider 13 is fixedly provided on the outer side of the lifting plate 2. The slider 13 can be a square slider 13. A slide rail 14 is fixedly provided on the side wall of the gantry frame 1 for the slider 13 to move vertically along it.

[0040] The power mechanism 10 includes a drive motor fixed on the middle side wall of the gantry frame 1. The power output end of the drive motor is connected to two drive half shafts 16. The drive half shafts 16 can be powered by a reduction gearbox and thus transmitted. The transmission connection method is existing technology, so the specific connection method will not be described here. The drive half shafts 16 are horizontally arranged. The middle outer circumferential surface of the drive half shaft 16 is mounted on the middle side wall of the gantry frame 1 through a bearing seat. The other end of the drive half shaft 16 is connected to the synchronous belt 9 to transmit the power given to the synchronous belt 9 by the drive motor. It should be noted that a synchronous pulley is fixed on the outer circumferential surface of the end of the drive half shaft 16 that cooperates with the synchronous belt 9. One end of the drive half shaft 16 is connected to the synchronous belt 9 through the synchronous pulley.

[0041] The gantry frame 1 is provided with a pair of photoelectric switch brackets 17 at the top and bottom. The photoelectric switch brackets 17 are formed into a roughly square frame and are symmetrically arranged on the left and right sides of one of the material shaft clamping plates 3. Each photoelectric switch bracket 17 is equipped with a photoelectric beam switch. The photoelectric beam switch is a photoelectric switch in the prior art. The specifications and models can be selected according to the user's needs. This is used to detect the incoming material from the top and bottom of the heavy-duty material roll 4 in the heavy-duty material roll accommodating space.

[0042] In addition, in order to prevent the power cord or signal cord on the lifting plate 2 from moving, getting tangled or even being damaged due to frequent movement, pulling or friction during the lifting of the lifting plate 2, a drag chain can be installed between the bottom side wall of the gantry frame 1 and the side wall of the lifting plate, and the power cord or signal cord on the lifting plate is installed on the drag chain.

[0043] Upper limit stop 18 and lower limit stop 19 are fixedly installed on the outer side of the lifting plate 2, one above the other. The upper limit stop 18 and lower limit stop 19 are formed into a roughly square block structure. Mechanical limit switches 20 are installed on the top and bottom side walls of the gantry frame 1 to cooperate with the upper limit stop 18 and lower limit stop 19. When the upper limit stop 18 and lower limit stop 19 move up or down to the highest or lowest position, they will trigger the mechanical limit switches 20, thereby completing the triggering of the mechanical limit switches 20. The mechanical limit switches 20 are existing technology and their specifications and models can be selected according to the usage requirements.

[0044] On the outer side of the lifting plate 2, an upper anti-collision limit block 21 and a lower anti-collision limit block 15 are fixedly installed one above the other, facing the side wall of the gantry frame 1. The installation height of the upper anti-collision limit block 21 is higher than that of the upper limit stop block 18, and the installation height of the lower anti-collision limit block 15 is lower than that of the lower limit stop block 19. The specific installation height of the upper anti-collision limit block 21 and the lower anti-collision limit block 15 can be selected according to the usage requirements. They form a roughly square block structure, which can be made of polyurethane.

[0045] The working principle of the heavy-duty material roll automatic lifting device in Example 1 is as follows:

[0046] After the drive motor starts, it drives two horizontally arranged drive half shafts 16 to rotate through the reduction gearbox. The synchronous pulleys at the ends of the drive half shafts 16 mesh with the tooth grooves of the synchronous belts 9, driving the two vertically symmetrically arranged synchronous belts 9 to form a closed-loop transmission under the constraint of the tensioning pulleys 5. The lifting plate 2 rigidly clamps the inner and outer sides of the synchronous belts 9 through the angle steel structure of the synchronous belt pressure plate 11 and the synchronous belt support plate 12, transmitting the linear motion of the synchronous belts 9 to the lifting plate 2. At the same time, the slider 13 on the outer side of the lifting plate 2 moves along the slide rail 14 of the gantry frame 1 to ensure the vertical lifting accuracy under heavy load. When the lifting plate 2 rises, the material shaft clamping plate 3 fixed at the top carries the material roll shaft through the V-shaped receiving groove. The heavy-load material roll receiving space formed by the double lifting plates 2 achieves synchronous lifting.

[0047] During the lifting process, the photoelectric beam switch installed on the photoelectric switch bracket 17 detects the top and bottom positions of the material roll in real time. It can be configured to connect the PLC with the drive motor, the photoelectric beam switch and the mechanical limit switch 20 described below. When the heavy-load material roll 4 reaches the preset height, it sends a signal to the PLC to control the motor to stop. If the control system fails, the upper limit stop 18 or the lower limit stop 19 on the outside of the lifting plate 2 will trigger the mechanical limit switch 20 on the gantry 1 to forcibly cut off the motor power. As a final protection, the upper anti-collision limit block 21 and the lower anti-collision limit block 15 made of polyurethane will contact the side wall of the gantry 1 when the limit position is exceeded. They absorb the impact energy through elastic deformation to prevent it from exceeding the safe travel limit and avoid mechanical collision, equipment damage or safety accidents.

Claims

1. An automatic lifting device for heavy-duty material coils, characterized in that: It includes a gantry frame, which has; A pair of lifting plates are symmetrically slidably installed on the inner wall of the gantry, one on the left and one on the right. Each lifting plate has a material shaft clamping plate at the top for bearing heavy-duty material rolls. The space between the two material shaft clamping plates forms a heavy-duty material roll accommodating space. The drive assembly includes a tensioner pulley group, a timing belt, and a power mechanism. The tensioner pulley group is installed at the top and bottom of the gantry. Two timing belts are vertically symmetrically arranged on the left and right sides. Each timing belt is tensioned on the tensioner pulley group. Each tensioner pulley group has one timing belt tensioned on it. The power mechanism is installed on the gantry and is configured to work in conjunction with the tensioner pulley group to provide power to the timing belt. The side of the lifting plate away from the heavy-duty material roll receiving space is fixedly connected to the synchronous belt, thereby being driven to lift by the synchronous belt.

2. The automatic lifting device for heavy-duty material coils according to claim 1, characterized in that: The lifting plate is vertically arranged, and the material shaft clamping plate is located in the middle of the top surface of the lifting plate. The top of the material shaft clamping plate has a receiving groove for accommodating the material shaft of a heavy-duty material roll.

3. The automatic lifting device for heavy-duty material coils according to claim 1, characterized in that: Each tensioning wheel assembly includes four bearings, two tensioning wheels, and two adjusting bolt seats. The four bearings are rotatably mounted at the top and bottom four corners of the gantry frame. The two tensioning wheels and the two adjusting bolt seats are placed on the top and bottom of the gantry frame. A sliding plate that can slide up and down is embedded in the outer wall of the adjusting bolt seat. The tensioning wheels are rotatably mounted on the side wall of the sliding plate. A screw is screwed onto the adjusting bolt seat. One end of the screw is rotatably mounted on the side wall of the sliding plate. The rotation of the screw drives the sliding plate and the tensioning wheels on it to move vertically. The timing belt is tensioned between the outer circumferential surface of the bearing and the outer circumferential surface of the tensioning pulley.

4. The automatic lifting device for heavy-duty material coils according to claim 1, characterized in that: The side of the lifting plate away from the heavy-duty material roll accommodating space is the outer side of the lifting plate. A timing belt pressure plate and a timing belt support plate are provided on the outer side of the lifting plate. One side of the timing belt pressure plate and the timing belt support plate are bolted to the outer side of the lifting plate, and the other side is bolted to each other and clamped on the inner and outer sides of the timing belt, so as to keep the lifting plate and the timing belt relatively fixed as one.

5. The automatic lifting device for heavy-duty material coils according to claim 1, characterized in that: A slider is fixedly provided on the outer side of the lifting plate, and a slide rail is fixedly provided on the side wall of the gantry frame for the slider to move vertically along it.

6. The automatic lifting device for heavy-duty material coils according to claim 1, characterized in that: The power mechanism includes a drive motor fixed on the middle side wall of the gantry frame. The power output end of the drive motor is connected to two drive half shafts. The middle outer circumferential surface of the drive half shaft is mounted on the middle side wall of the gantry frame through a bearing seat. The other end of the drive half shaft is connected to a synchronous belt drive, thereby transmitting the power from the drive motor to the synchronous belt.

7. The automatic lifting device for heavy-duty material coils according to claim 1, characterized in that: The gantry is equipped with a pair of photoelectric switch brackets at the top and bottom, which are symmetrically arranged on the left and right sides of one of the material shaft clamping plates. Each photoelectric switch bracket is equipped with a photoelectric beam switch to detect the material coming into the top and bottom of the heavy-duty material roll in the heavy-duty material roll accommodating space.

8. The automatic lifting device for heavy-duty material coils according to claim 4, characterized in that: Upper limit blocks and lower limit blocks are fixedly installed on the outer side of the lifting plate, one above the other. Mechanical limit switches that work in conjunction with the upper limit blocks and lower limit blocks are installed on the top and bottom side walls of the gantry frame.

9. The automatic lifting device for heavy-duty material coils according to claim 4, characterized in that: On the outer side of the lifting plate, an upper anti-collision limit block and a lower anti-collision limit block are fixedly installed, one above the other, facing the side wall of the gantry. The installation height of the upper anti-collision limit block is higher than that of the upper limit stop block, and the installation height of the lower anti-collision limit block is lower than that of the lower limit stop block.

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