Roll changing device for photovoltaic film production

Abstract

The utility model provides a roll changing device for photovoltaic film production, which comprises a base and a transmission shaft, a vertical plate is fixedly arranged at the top of the base, one end of the transmission shaft is rotatably connected with one side of the vertical plate, one side of the vertical plate is rotatably and slidably connected with a switching plate, and the sliding direction of the switching plate is parallel to that of the transmission shaft. And one side of the switching plate is rotationally connected with two switching shafts which are symmetrically distributed relative to the rotating axis of the vertical plate and the switching plate. The transmission shaft is provided with the receding inserting groove, then the switching shaft is arranged, the supporting rod matched with the receding inserting groove in an inserted mode is arranged on the switching shaft, when the switching shaft is connected with the transmission shaft in an inserted mode, an empty winding drum can be transferred to the transmission shaft, the transmission shaft is started to adjust the empty winding drum to wind a thin film, and the free end of the supporting rod is rotationally connected with the check block. And after the empty roll is wound, when the switching shaft retreats, the winding drum with the thin film can be taken down through the check block, an operator does not need to disassemble the winding drum with the thin film in a load-bearing mode, and the labor intensity of disassembling the winding drum with the thin film is greatly reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of photovoltaic film production, in particular to a roll changing device used in photovoltaic film production. Background Art

[0002] Polyester film is a kind of polymer plastic film, which is increasingly favored by consumers due to its excellent comprehensive performance. It is a colorless, transparent, glossy film with excellent performance, high rigidity, hardness and toughness, puncture resistance, friction resistance, high and low temperature resistance, chemical resistance, oil resistance, good air tightness and freshness preservation. It is one of the commonly used barrier composite film substrates.

[0003] Traditionally, in order to facilitate the storage of the produced photovoltaic polyester film, it is usually rolled into a roll for storage after production. A vertical plate is set on the support frame to support and fix the reel, the reel is put on the reel, and one end of the produced photovoltaic polyester film is fixed on the reel. The reel is then driven by a motor, and the reel drives the reel to wind the photovoltaic polyester film on the reel. After the winding is completed, the personnel first cut off the connection of the polyester film, and then remove the reel from the reel and replace it with a new reel, and re-fix one end of the photovoltaic polyester film to the new reel to start a new round of winding. However, the above-mentioned prior art still has the following shortcomings: it is necessary for personnel to manually replace the reel. During replacement, one end of the reel is removed from the vertical plate, the wound reel is manually pulled out, and then a new unwound reel is inserted into the reel, and its position is adjusted. Then, one end of the reel is reinstalled on the vertical plate. The replacement of the reel is quite time-consuming and laborious for personnel, the overall workload is large, and personnel have to reach into the equipment to replace the reel, which poses certain safety hazards.

[0004] The utility model with publication number CN219525737U proposes a roll-changing device for producing photovoltaic polyester film, but the roll-changing structure involved is relatively complicated and subsequent maintenance is not convenient.

[0005] To this end, the utility model provides a roll-changing device for photovoltaic film production. Utility Model Content

[0006] In view of the shortcomings of the prior art, the purpose of the utility model is to provide a roll changing device for photovoltaic film production to solve the problems raised in the above-mentioned background technology. The utility model has a simpler roll changing structure and a more convenient roll changing operation, which greatly reduces the labor intensity of roll changing and improves the efficiency and safety of roll changing.

[0007] In order to achieve the above-mentioned purpose, the utility model is realized through the following technical scheme: a roll-changing device for photovoltaic film production, comprising a base and a transmission shaft, a vertical plate is fixedly arranged on the top of the base, one end of the transmission shaft is rotatably connected to one side of the vertical plate, one side of the vertical plate is also rotatably and slidably connected to a switching plate and the sliding direction is parallel to the transmission shaft, one side of the switching plate is rotatably connected to two switching shafts symmetrically distributed relative to the vertical plate and the rotation axis of the switching plate, when the switching plate rotates, the switching shaft can be periodically in a coaxial state with the transmission shaft, the outer peripheral wall of the transmission shaft is provided with at least three circumferentially evenly distributed yield slots and one end extends to the free end, one end of the switching shaft is fixedly provided with a support rod which is evenly distributed circumferentially and plug-matched with the yield slot, the free end of the support rod is rotatably connected to a block, and the other end of the switching shaft is provided with a control combination for controlling the rotation of the block.

[0008] Furthermore, the control combination includes a control motor, a driving gear and a passive gear, the other end of the switching shaft is fixedly connected to a transmission box located on the other side of the switching plate, one side of the block is fixedly connected to a connecting shaft that passes through the support rod, the connecting shaft is rotatably connected to the support rod and one end of the connecting shaft is fixedly connected to a passive gear located in the transmission box, the control motor is fixedly arranged on one side of the transmission box and its output shaft is fixedly connected to a driving gear that meshes with the passive gear.

[0009] Furthermore, one side of the vertical plate is rotatably connected to a driving shaft, and one side of the switching plate is fixedly connected to a guide sleeve sleeved on the driving shaft, and the guide sleeve and the driving shaft are slidably matched.

[0010] Furthermore, a control cylinder is fixedly provided on the upper end surface of the base, and an output shaft of the control cylinder is fixedly connected to a connecting plate, one side of the connecting plate is rotatably connected to the other side of the switching plate, and the rotation axis is coaxial with the guide sleeve.

[0011] Furthermore, a fixed sleeve on the switching shaft is provided with a passive pulley located on the other side of the switching plate, and the passive pulleys at both ends of the switching plate are connected to the passive pulley through a transmission belt, and an adjustment motor is fixedly connected to one side of the switching plate, and one end of the adjustment motor is fixedly connected to an active pulley that engages with the passive pulley.

[0012] Furthermore, the outer fixing sleeve of the switching shaft is provided with a clamping disc close to the support rod, and the outer peripheral wall of the transmission shaft is welded with a baffle located between adjacent giving way slots.

[0013] The beneficial effects of the utility model are as follows:

[0014] 1. The utility model provides a clearance slot on the transmission shaft, and then sets a switching shaft. A support rod which is plugged and matched with the clearance slot is set on the switching shaft. When the switching shaft is plugged with the transmission shaft, the empty roll can be transferred to the transmission shaft. When the transmission shaft is started, the empty roll can be mobilized to wind the film. A stopper is rotatably connected to the free end of the support rod. After the empty roll is wound, the roll with the film can be removed through the stopper when the switching shaft is withdrawn. There is no need for operators to carry weight to disassemble, which greatly reduces the labor intensity of disassembling the roll with the film.

[0015] 2. The utility model sets a switching plate which is rotatable, and then sets switching shafts at both ends of the switching plate. The switching plate is sliding. When the switching plate slides, the empty roll and the transmission shaft can be docked, and the roll with the film can be removed. When the switching plate rotates, the empty roll can be transferred to one end of the transmission shaft, and the roll with the film can be transferred to the unloading position, which has the advantage of higher loading and unloading efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the structure of a roll-changing device for photovoltaic film production according to the utility model;

[0017] Figure 2 for Figure 1 Schematic diagram on the back;

[0018] Figure 3 This is a schematic diagram of the cooperation between a transmission shaft and a switching shaft for a photovoltaic film production roll changing device of the utility model;

[0019] Figure 4 This is a schematic diagram of a switching shaft of a roll-changing device for photovoltaic film production according to the utility model;

[0020] Figure 5 The utility model is a cross-sectional view of a control assembly for a photovoltaic film production roll-changing device.

[0021] In the figure: 1. base; 11. vertical plate; 111. drive shaft; 2. transmission shaft; 21. give way slot; 22. baffle; 41. guide sleeve; 4. switching plate; 5. switching shaft; 51. chuck; 52. transmission box; 6. control assembly; 61. control motor; 62. driving gear; 63. passive gear; 7. support rod; 8. block; 81. connecting shaft; 9. control cylinder; 91. connecting plate; 101. passive pulley; 103. transmission belt; 104. adjustment motor; 1041. driving pulley. DETAILED DESCRIPTION

[0022] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below in conjunction with specific implementation methods.

[0023] See also Figures 1 to 5 The utility model provides a technical solution: a roll-changing device for photovoltaic film production, comprising a base 1 and a transmission shaft 2, the transmission shaft 2 is a power shaft with a rotational winding function, a vertical plate 11 is fixedly arranged on the top of the base 1, one end of the transmission shaft 2 is rotatably connected to one side of the vertical plate 11, that is, the other end of the transmission shaft 2 is in a suspended state.

[0024] A switching plate 4 is also rotatably and slidably connected to one side of the vertical plate 11, and the sliding direction is parallel to the transmission shaft 2. When the switching plate 4 slides, it changes to approach and move away from the vertical plate 11. In specific implementation, it is preferred that a driving shaft 111 is rotatably connected to one side of the vertical plate 11, and a guide sleeve 41 sleeved on the driving shaft 111 is fixedly connected to one side of the switching plate 4. When the driving shaft 111 rotates, it can drive the guide sleeve 411 to rotate, and the guide sleeve 41 and the driving shaft 111 are slidably matched. When in use, a switching motor can be fixedly installed on the other side of the vertical plate 11, and the output shaft of the switching motor is connected to the driving shaft 111, and the switching motor provides driving force for the rotation of the driving shaft 111.

[0025] Furthermore, one side of the switching plate 4 is rotatably connected to two switching shafts 5 which are symmetrically distributed about the rotation axis of the two opposing plates 11 and the switching plate 4, that is, the distances between the two switching shafts 5 and the above-mentioned rotation axis are equal. When the switching plate 4 rotates, the switching shaft 5 can be periodically in a coaxial state with the transmission shaft 2. The function of the switching shaft 5 is to be the main component involved in reel changing. The outer wall of the transmission shaft 2 is provided with at least three circumferentially evenly distributed yielding slots 21 and one end of which extends to the free end. In the present embodiment, the number of the yielding slots 21 is three, and one end of the switching shaft 5 is fixedly provided with a support rod 7 which is evenly distributed circumferentially and plugged into the yielding slot 21. After the support rod 7 enters the yielding slot 21, the transmission shaft 2 forms a complete optical axis structure, that is, an empty roll is sleeved on the outside of the three support rods 7, and then the empty roll is driven to a position coaxial with the transmission shaft 2. When the current switching shaft 5 is controlled to move in the direction of the transmission shaft 2, the empty roll will be sleeved on the outside of the transmission shaft 2, and one end of the film can be manually connected to the empty roll, and then the transmission shaft 2 can be controlled to rotate to drive the empty roll to wind the film.

[0026] Furthermore, the free end of the support rod 7 is rotatably connected with a stopper 8, and the function of the stopper 8 is to facilitate the peeling of the roll after winding the film from the transmission shaft 2. When peeling, the switch plate 4 is controlled to be away from the vertical plate 11, and the stopper 8 will hook one end of the roll, so that the roll carrying the film is separated from the transmission shaft 2, and then the switch plate 4 can be controlled to rotate to transfer it to the unloading position. Among them, the purpose of the rotation setting function of the stopper 8 is to facilitate the docking and separation of the roll and the support rod 7. When the stopper 8 is controlled to rotate until it is close to the axis of the switching shaft 5, the diameter of the maximum outer circle where the stopper 8 on the three support rods 7 is smaller than the diameter of the maximum outer circle where the three support rods 7 are located, and the roll can be easily docked and separated with the three support rods 7. It should be noted that when it is necessary to separate the roll carrying the film, the roll is placed on the external unloading table, and then the switching shaft 5 is controlled to make an outward withdrawal action.

[0027] The other end of the switching shaft 5 is provided with a control assembly 6 for controlling the rotation of the stopper 8 .

[0028] Specifically, the control assembly 6 includes a control motor 61, a driving gear 62 and a passive gear 63. The other end of the switching shaft 5 is fixedly connected to a transmission box 52 located on the other side of the switching plate 4. A connecting shaft 81 that penetrates the support rod 7 is fixedly connected to one side of the stopper 8. In specific implementation, a clearance channel that cooperates with the connecting shaft 81 can be opened in the support rod 7. The connecting shaft 81 is rotatably connected to the support rod 7 and one end of the connecting shaft 81 is fixedly connected to the passive gear 63 located in the transmission box 52. The control motor 61 is fixedly arranged on one side of the transmission box 52 and its output shaft is fixedly connected to the driving gear 62 that meshes with the passive gear 63. Therefore, when the driving gear wheel 62 rotates, it can drive the three passive gears 63 to rotate at the same time, and then drive the three stoppers 8 to rotate at the same time. A battery can be installed in the transmission box 52 to supply power to the control motor 61.

[0029] In this embodiment, a control cylinder 9 is fixedly provided on the upper end surface of the base 1, and the output shaft of the control cylinder 9 is fixedly connected to a connecting plate 91. One side of the connecting plate 91 is rotatably connected to the other side of the switching plate 4, and the rotation axis is coaxial with the guide sleeve 41. The function of the control cylinder 9 is to provide driving force for the sliding of the entire switching plate 4.

[0030] In this embodiment, a passive pulley 101 located on the other side of the switching plate 4 is fixedly sleeved on the switching shaft 5. The passive pulleys 101 at both ends of the switching plate 4 are connected to the passive pulley 101 through a transmission belt 103. An adjustment motor 104 is fixedly connected to one side of the switching plate 4. One end of the adjustment motor 104 is fixedly connected to an active pulley 1041 that engages with the passive pulley 101. The function of the adjustment motor 104 is to transmit power to the passive pulley 101 through the transmission belt 103. The transmission belt 103 is a synchronous belt. This arrangement facilitates the control of the docking of the support rod 7 and the give-way slot 21.

[0031] In this embodiment, the external fixed sleeve of the switching shaft 5 is provided with a chuck 51 close to the support rod 7, and the outer peripheral wall of the transmission shaft 2 is welded with a baffle 22 located between adjacent makeshift slots 21. The function of the chuck 51 and the baffle 22 is to clamp the reel between the two to prevent the reel from slipping when the transmission shaft 2 rotates.

[0032] Working principle: Before use, an empty roll turnover groove can be placed on the base 1, and the empty roll can be placed in the turnover groove. Then the switch plate 4 can be controlled to rotate to drive one of the switch shafts 5 close to one end of the empty roll turnover groove. Then the control cylinder 9 can be started to make the switch shaft 5 move axially. The three struts 7 can be inserted into the empty roll. Then the control motor 61 can be started to make the block 8 rotate outward to limit the empty roll. The switch plate 4 can be controlled to reset. Then the switch plate 4 can be controlled to rotate until the switch shaft 5 carrying the empty roll moves to one end of the transmission shaft 2. The switch plate 4 can be controlled to move toward the vertical plate 11. The strut 7 can be inserted into the clearance slot 21. At this time, the empty roll enters the transmission shaft 2. At this time, the empty roll is loaded. The reverse operation can control the unloading of the roll carrying the film.

[0033] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A roll-changing device for photovoltaic film production, comprising a base (1) and a transmission shaft (2), characterized in that: A vertical plate (11) is fixedly arranged on the top of the base (1), one end of the transmission shaft (2) is rotatably connected to one side of the vertical plate (11), one side of the vertical plate (11) is also rotatably and slidably connected to a switching plate (4) and the sliding direction is parallel to the transmission shaft (2), one side of the switching plate (4) is rotatably connected to two switching shafts (5) symmetrically distributed relative to the rotation axes of the vertical plate (11) and the switching plate (4), when the switching plate (4) rotates, the switching shaft (5) can be periodically in a coaxial state with the transmission shaft (2), the outer peripheral wall of the transmission shaft (2) is provided with at least three circumferentially evenly distributed yielding slots (21) and one end of which extends to the free end, one end of the switching shaft (5) is fixedly provided with a support rod (7) evenly distributed in the circumference and plug-matched with the yielding slot (21), the free end of the support rod (7) is rotatably connected to a stopper (8), and the other end of the switching shaft (5) is provided with a control assembly (6) for controlling the rotation of the stopper (8).

2. The roll-changing device for photovoltaic film production according to claim 1, characterized in that: The control assembly (6) comprises a control motor (61), a driving gear (62) and a driven gear (63); the other end of the switching shaft (5) is fixedly connected to a transmission box (52) located on the other side of the switching plate (4); one side of the stopper (8) is fixedly connected to a connecting shaft (81) penetrating the support rod (7); the connecting shaft (81) is rotatably connected to the support rod (7) and one end of the connecting shaft is fixedly connected to a driven gear (63) located in the transmission box (52); the control motor (61) is fixedly arranged on one side of the transmission box (52) and its output shaft is fixedly connected to a driving gear (62) meshing with the driven gear (63).

3. The roll-changing device for photovoltaic film production according to claim 1, characterized in that: One side of the vertical plate (11) is rotatably connected to a driving shaft (111), and one side of the switching plate (4) is fixedly connected to a guide sleeve (41) sleeved on the driving shaft (111), and the guide sleeve (41) and the driving shaft (111) are slidably matched.

4. A roll-changing device for photovoltaic film production according to claim 3, characterized in that: A control cylinder (9) is fixedly arranged on the upper end surface of the base (1), and an output shaft of the control cylinder (9) is fixedly connected to a connecting plate (91), one side of the connecting plate (91) is rotatably connected to the other side of the switching plate (4), and the rotation axis is coaxial with the guide sleeve (41).

5. The roll-changing device for photovoltaic film production according to claim 1, characterized in that: A passive pulley (101) located on the other side of the switching plate (4) is fixedly sleeved on the switching shaft (5); the passive pulleys (101) at both ends of the switching plate (4) are connected via a transmission belt (103); an adjustment motor (104) is fixedly connected to one side of the switching plate (4); and an active pulley (1041) engaged with the transmission belt (103) is fixedly connected to one end of the adjustment motor (104).

6. The roll-changing device for photovoltaic film production according to claim 1, characterized in that: The outer fixing sleeve of the switching shaft (5) is provided with a clamping disc (51) close to the support rod (7), and the outer peripheral wall of the transmission shaft (2) is welded with a baffle (22) located between adjacent clearance slots (21).

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