Narrow-band stacking device
By designing a narrowband stacking device including a robot and a lateral action mechanism, the problem of narrowband stacking automation in blister machines is solved, and the automated interval stacking of narrowbands is realized, reducing production costs and improving efficiency.
Patent Information
- Application Number
- CN202422150907.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-02
- Publication Date
- 2025-06-06
- Estimated Expiration
- 2034-09-02
AI Technical Summary
In blister machines, two narrowband raw materials of different specifications need to be stacked in sequence and then blister molded. However, the existing technology lacks relevant stacking equipment, which leads to manual operation and increases production costs.
A narrow band stacking device is designed, including a workbench, a frame, a robot and a transverse action mechanism, through which narrow bands of different specifications are transported from the respective fixtures to the second fixture, and spaced stacking of narrow bands is achieved through the transverse action mechanism.
It is realized that narrow bands of different specifications are automatically stacked in the second fixture, reducing production costs and improving production efficiency.
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Figure CN222946184U_ABST
Abstract
Description
Technical Field
[0001] The utility model generally relates to the field of blister machines, and in particular to a narrow-band stacking device. Background Art
[0002] The blister machine, also known as a thermoplastic forming machine, is a machine that blister-forms heated and plasticized thermoplastic plastic coils such as PVC, PE, PP, PET, HIPS, etc. into packaging boxes, frames, and other products of various shapes. Using the vacuum suction force generated by a vacuum pump, the heated and softened thermoplastic plastic sheets such as PVC and PET are blister-formed into vacuum covers, blister trays, bubble shells, and other shapes through molds.
[0003] When some products are blister-formed, two sizes of raw materials are involved. The two sizes of raw materials need to be stacked in sequence before blister-forming. Currently, there is no relevant stacking equipment. If the materials are stacked and fed manually, the labor cost of production will be increased. Utility Model Content
[0004] In view of the above-mentioned defects or deficiencies in the prior art, it is desired to provide a narrowband stacking device with reduced production costs.
[0005] In a first aspect, the narrowband stacking device of the utility model comprises:
[0006] A workbench, on which a first jig, a second jig and a third jig are placed in sequence, the first jig stores a first narrow band, the third jig stores a second narrow band, and the first narrow band and the second narrow band have different specifications;
[0007] A frame fixedly connected to the workbench;
[0008] The first manipulator comprises a first sliding seat, a first longitudinal action mechanism, a first fixed frame and a plurality of first adsorption rods, wherein the plurality of first adsorption rods are fixedly connected to the first fixed frame, the first longitudinal action mechanism is fixedly connected to the first sliding seat, the first fixed frame is connected to the first longitudinal action mechanism, and the first longitudinal action mechanism drives the first fixed frame to move in a vertical direction;
[0009] The second manipulator comprises a second sliding seat, a second longitudinal action mechanism, a second fixed frame and a plurality of second adsorption rods, wherein the plurality of second adsorption rods are fixedly connected to the second fixed frame, the second longitudinal action mechanism is fixedly connected to the second sliding seat, the second fixed frame is connected to the second longitudinal action mechanism, and the second longitudinal action mechanism drives the second fixed frame to move in a vertical direction;
[0010] The lateral action mechanism includes a first motor, a first driving pulley, a first driven pulley, a first synchronous belt and a first fixed seat. The first synchronous belt passes around the first driving pulley and the first driven pulley respectively. The first motor drives the first driving pulley to rotate. The first fixed seat is fixedly connected to the top of the frame. The first sliding seat and the second sliding seat are respectively slidably connected to the first fixed seat. The first sliding seat is connected to the first synchronous belt through a first connecting block, and the second sliding seat is connected to the first synchronous belt through a second connecting block.
[0011] According to the technical solution provided in the embodiment of the present application, the first manipulator transfers the first narrow band from the first jig to the second jig, and the second manipulator transfers the second narrow band from the third jig to the second jig, so that the first narrow band in the first jig and the first narrow band in the third jig are stacked at intervals on the second jig, thereby reducing production costs. BRIEF DESCRIPTION OF THE DRAWINGS
[0012] Other features, objects and advantages of the present application will become more apparent by reading the detailed description of non-limiting embodiments made with reference to the following drawings:
[0013] Figure 1 It is a schematic structural diagram of a narrowband stacking device according to an embodiment of the utility model;
[0014] Figure 2 It is a schematic structural diagram of a narrowband stacking device according to an embodiment of the utility model;
[0015] Figure 3 It is a schematic structural diagram of a narrowband stacking device according to an embodiment of the utility model. DETAILED DESCRIPTION
[0016] The present application is further described in detail below in conjunction with the accompanying drawings and embodiments. It is to be understood that the specific embodiments described herein are only used to explain the relevant utility model, rather than to limit the utility model. It is also necessary to explain that, for ease of description, only the parts related to the utility model are shown in the accompanying drawings.
[0017] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application can be combined with each other. The present application will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.
[0018] Please refer to Figures 1 to 3The narrow band stacking device of the utility model comprises: a workbench 100, on which a first fixture 110, a second fixture 120 and a third fixture 130 are placed in sequence, the first fixture 110 stores a first narrow band, the third fixture 130 stores a second narrow band, and the first narrow band and the second narrow band have different specifications; a frame 200, which is fixedly connected to the workbench 100; a first manipulator 300, which comprises a first sliding seat 310, a first longitudinal action mechanism, a first fixed frame 330 and a plurality of first adsorption rods 340, the plurality of first adsorption rods 340 are fixedly connected to the first fixed frame 330, the first longitudinal action mechanism is fixedly connected to the first sliding seat 310, the first fixed frame 330 is connected to the first longitudinal action mechanism, and the first longitudinal action mechanism drives the first fixed frame 330 to move in a vertical direction; a second manipulator 400, which comprises a second sliding seat 410, a second longitudinal action mechanism, a second fixed frame 430 and a plurality of second adsorption rods 44 0, multiple second adsorption rods 440 are fixedly connected to the second fixed frame 430, the second longitudinal action mechanism is fixedly connected to the second sliding seat 410, the second fixed frame 430 is connected to the second longitudinal action mechanism, and the second longitudinal action mechanism drives the second fixed frame 430 to move in the vertical direction; the transverse action mechanism includes a first motor 510, a first driving pulley 520, a first driven pulley 530, a first synchronous belt 540 and a first fixed seat 550, the first synchronous belt 540 respectively passes around the first driving pulley 520 and the first driven pulley 530, the first motor 510 drives the first driving pulley 520 to rotate, the first fixed seat 550 is fixedly connected to the top of the frame 200, the first sliding seat 310 and the second sliding seat 410 are respectively slidably connected to the first fixed seat 550, the first sliding seat 310 is connected to the first synchronous belt 540 through the first connecting block, and the second sliding seat 410 is connected to the first synchronous belt 540 through the second connecting block.
[0019] In an embodiment of the utility model, the first jig 110, the second jig 120 and the third jig 130 are placed on the workbench 100 in parts, and positioning blocks can be set on the workbench 100 to position the first jig 110, the second jig 120 and the third jig 130. The first jig 110, the second jig 120 and the third jig 130 are arranged in sequence on the workbench 100, that is, the second jig 120 is located between the first jig 110 and the third jig 130. The first narrow band is stored in the first jig 110, and the second narrow band is stored in the second jig 120. It can be, but not limited to, the width of the first narrow band and the length of the second narrow band are both 20 mm, and the length of the first narrow band and the second narrow band are different.
[0020] The first manipulator 300 moves within the range of the first fixture 110 and the second fixture 120, and the lateral motion mechanism can drive the first manipulator 300 to move from above the first fixture 110 to above the second fixture 120, or from above the second fixture 120 to above the first fixture 110. When the first manipulator 300 is above the first fixture 110, the first longitudinal motion mechanism drives the first adsorption rod 340 to enter or leave the first fixture 110. When the first manipulator 300 is above the second fixture 120, the first longitudinal motion mechanism drives the first adsorption rod 340 to enter or leave the second fixture 120. Specifically, when loading, the first manipulator 300 is located above the first fixture 110, the first longitudinal motion mechanism drives the first adsorption rod 340 to descend, and the first adsorption rod 340 enters the first fixture 110 from above the first fixture 110. After the first adsorption rod 340 adsorbs the first narrow band, the first longitudinal motion mechanism drives the first adsorption rod 340 to rise, and the first adsorption rod 340 drives the first narrow band to leave the first fixture 110. After the transverse action mechanism drives the first manipulator 300 to move from above the first fixture 110 to above the second fixture 120, the first longitudinal action mechanism drives the first adsorption rod 340 to descend, the first adsorption rod 340 enters the second fixture 120 from above the second fixture 120, the first adsorption rod 340 loosens the first narrow band, and the first narrow band enters the second fixture 120. The first longitudinal action mechanism drives the first adsorption rod 340 to rise, and the first adsorption rod 340 is separated from the second fixture 120. The transverse action mechanism drives the first manipulator 300 to move from above the second fixture 120 to above the first fixture 110. Repeating the above steps, the first manipulator 300 continuously puts the first narrow bands in the first fixture 110 into the second fixture 120 one by one.
[0021] The second manipulator 400 moves within the range of the third fixture 130 and the second fixture 120, and the lateral motion mechanism can drive the second manipulator 400 to move from above the third fixture 130 to above the second fixture 120, or from above the second fixture 120 to above the third fixture 130. When the second manipulator 400 is above the third fixture 130, the second longitudinal motion mechanism drives the second adsorption rod 440 to enter or leave the third fixture 130. When the second manipulator 400 is above the second fixture 120, the second longitudinal motion mechanism drives the second adsorption rod 440 to enter or leave the second fixture 120. Specifically, when loading, the second manipulator 400 is located above the third fixture 130, and the second longitudinal motion mechanism drives the second adsorption rod 440 to descend, and the second adsorption rod 440 enters the third fixture 130 from above the third fixture 130. After the second adsorption rod 440 adsorbs the second narrow band, the second longitudinal action mechanism drives the second adsorption rod 440 to rise, and the second adsorption rod 440 drives the second narrow band to detach from the third fixture 130. After the transverse action mechanism drives the second manipulator 400 to move from above the third fixture 130 to above the second fixture 120, the second longitudinal action mechanism drives the second adsorption rod 440 to descend, the second adsorption rod 440 enters the second fixture 120 from above the second fixture 120, the second adsorption rod 440 loosens the second narrow band, and the second narrow band enters the second fixture 120. The second longitudinal action mechanism drives the second adsorption rod 440 to rise, and the second adsorption rod 440 detaches from the second fixture 120. The transverse action mechanism drives the second manipulator 400 to move from above the second fixture 120 to above the third fixture 130. Repeating the above steps, the second manipulator 400 continuously puts the second narrow bands in the third fixture 130 into the second fixture 120 one by one.
[0022] The lateral action mechanism includes a first motor 510, a first active pulley 520, a first driven pulley 530, a first synchronous belt 540 and a first fixed seat 550. The first motor 510 is used to drive the first active pulley 520 to rotate, thereby driving the first synchronous belt 540 to move. The first sliding seat 310 is connected to the first synchronous belt 540 through a first connecting block, and the second sliding seat 410 is connected to the first synchronous belt 540 through a second connecting block. The movement of the first synchronous belt 540 can drive the first sliding seat 310 and the second sliding seat 410 to move synchronously, that is, drive the first manipulator 300 and the second manipulator 400 to move synchronously in the horizontal direction. Specifically, when the first manipulator 300 moves from above the first fixture 110 to above the second fixture 120, the second manipulator 400 moves from above the second fixture 120 to above the third fixture 130. When the first manipulator 300 moves from above the second jig 120 to above the first jig 110, the second manipulator 400 moves from above the third jig 130 to above the second jig 120. Thus, the first narrow strip in the first jig 110 and the first narrow strip in the third jig 130 are stacked in the second jig 120. Then the second jig 120 is sent to the blister forming machine to perform blister forming on the first narrow strip and the second narrow strip stacked in intervals.
[0023] Furthermore, two parallel first guide rails are fixedly connected to the first fixed seat 550, two parallel first sliders are fixedly connected to the first sliding seat 310, and two parallel second sliders are fixedly connected to the second sliding seat 410. A first slider and a second slider slide on each first guide rail respectively, and the first guide rail is arranged in the horizontal direction.
[0024] In the embodiment of the utility model, the first sliding seat 310 is slidably connected with the first fixed seat 550 by the two first sliders and the two first guide rails, thereby ensuring the stability of the sliding connection between the first sliding seat 310 and the first fixed seat 550. The cross section of the first guide rail can be set to an I-shaped, and an I-shaped groove is correspondingly set on the first slider to achieve a stable sliding connection between the first slider and the first guide rail, thereby preventing the first slider from being separated from the first guide rail. The first guide rail is set in the horizontal direction, so that the first sliding seat 310 moves in the horizontal direction relative to the first fixed seat 550.
[0025] The second sliding seat 410 is slidably connected to the first fixed seat 550 by the two second sliders and the two first guide rails, thereby ensuring the stability of the sliding connection between the second sliding seat 410 and the first fixed seat 550. The cross section of the first guide rail can be set to an I-shaped shape, and an I-shaped groove is correspondingly provided on the second slider to achieve a stable sliding connection between the second slider and the first guide rail, thereby preventing the second slider from being separated from the first guide rail. The first guide rail is arranged in the horizontal direction, so that the second sliding seat 410 moves in the horizontal direction relative to the first fixed seat 550.
[0026] Furthermore, the first sliding block and the second sliding block are both located above the first guide rail.
[0027] In the embodiment of the utility model, the first slider is located above the first guide rail, so that the first guide rail can better support the first sliding seat 310, ensuring the reliability and stability of the sliding connection between the first sliding seat 310 and the first fixed seat 550. The second slider is located above the first guide rail, so that the first guide rail can better support the second sliding seat 410, ensuring the reliability and stability of the sliding connection between the second sliding seat 410 and the first fixed seat 550.
[0028] Furthermore, the first synchronous belt 540 is located between the two first guide rails, making the structure of the lateral action mechanism more compact.
[0029] Furthermore, the first longitudinal action mechanism includes a second motor 321, a second driving pulley, a second driven pulley, a second synchronous belt 322, a second fixed seat 323 and a third sliding seat 324. The second synchronous belt 322 passes around the second driving pulley and the second driven pulley respectively. The second motor 321 drives the second driving pulley to rotate. The second fixed seat 323 is fixedly connected to the first sliding seat 310. The third sliding seat 324 is slidably connected to the second fixed seat 323. The third sliding seat 324 is connected to the second synchronous belt 322 through a third connecting block. A second longitudinal action mechanism is connected, which includes a third motor 421, a third driving pulley, a third driven pulley, a third synchronous belt 422, a third fixed seat 423 and a fourth sliding seat 424. The third synchronous belt 422 passes around the third driving pulley and the third driven pulley respectively. The third motor 421 drives the third driving pulley to rotate, the third fixed seat 423 is fixedly connected to the first sliding seat 310, the fourth sliding seat 424 is slidably connected to the third fixed seat 423, and the fourth sliding seat 424 is connected to the third synchronous belt 422 through a fourth connecting block.
[0030] In the embodiment of the utility model, the first longitudinal action mechanism comprises a second motor 321, a second driving pulley, a second driven pulley, a second synchronous belt 322, a second fixed seat 323 and a third sliding seat 324. The second motor 321 drives the second driving pulley to rotate, driving the second synchronous belt 322 to move. The third sliding seat 324 is connected to the second synchronous belt 322 through a third connecting block. The movement of the second synchronous belt 322 drives the third sliding seat 324 to move through the third connecting block. The third sliding seat 324 is slidably connected to the second fixed seat 323, ensuring the stability of the movement of the third sliding seat 324. Of course, the third sliding seat 324 moves in a vertical direction relative to the second fixed seat 323. The second fixed seat 323 is fixedly connected to the first sliding seat 310, and the second fixed seat 323 can move together with the first sliding seat 310, that is, the first longitudinal action mechanism can move together with the first sliding seat 310.
[0031] The third longitudinal action mechanism comprises a third motor 421, a third driving pulley, a third driven pulley, a third synchronous belt 422, a third fixed seat 423 and a fourth sliding seat 424. The third motor 421 drives the third driving pulley to rotate, thereby driving the third synchronous belt 422 to move. The fourth sliding seat 424 is connected to the third synchronous belt 422 through a fourth connecting block. The movement of the third synchronous belt 422 drives the fourth sliding seat 424 to move through the fourth connecting block. The fourth sliding seat 424 is slidably connected to the third fixed seat 423, thereby ensuring the stability of the movement of the fourth sliding seat 424. Of course, the fourth sliding seat 424 moves in a vertical direction relative to the third fixed seat 423. The third fixed seat 423 is fixedly connected to the first sliding seat 310, and the third fixed seat 423 can move together with the first sliding seat 310, that is, the third longitudinal action mechanism can move together with the first sliding seat 310.
[0032] Furthermore, the second motor 321 is fixedly connected to the second fixing seat 323 , and the second motor 321 and the third sliding seat 324 are located on both sides of the second fixing seat 323 , so that the force on the second fixing seat 323 is balanced.
[0033] Furthermore, the third motor 421 is fixedly connected to the third fixing seat 423 , and the third motor 421 and the fourth sliding seat 424 are located on both sides of the third fixing seat 423 , so that the third fixing seat 423 is subjected to balanced force.
[0034] Furthermore, the second motor 321 is located above the first sliding seat 310, and a first reinforcing plate is arranged between the first sliding seat 310 and the second fixed seat 323. The first reinforcing plate is located above the first sliding seat 310. By setting the first reinforcing plate, the connection strength between the first sliding seat 310 and the second fixed seat 323 can be improved.
[0035] Furthermore, the third motor 421 is located above the second sliding seat 410, and a second reinforcing plate is arranged between the second sliding seat 410 and the third fixed seat 423. The second reinforcing plate is located above the second sliding seat 410. By setting the second reinforcing plate, the connection strength between the second sliding seat 410 and the third fixed seat 423 can be improved.
[0036] Furthermore, a plurality of first adsorption rods 340 are arranged in a rectangular array on the first fixing frame 330, and a plurality of first narrow strips can be placed in the first fixture 110, so that the first manipulator 300 can adsorb a plurality of first narrow strips at a time, thereby improving the stacking efficiency. In addition, the use of a plurality of first adsorption rods 340 to adsorb a first narrow strip ensures the reliability of adsorbing the first narrow strip.
[0037] Furthermore, the plurality of second adsorption rods 440 are arranged in a rectangular array on the second fixing frame 430, so that the second manipulator 400 can adsorb multiple pieces of the second narrow tape at a time, thereby improving the stacking efficiency. Furthermore, the plurality of second adsorption rods 440 are used to adsorb a piece of the second narrow tape, thereby ensuring the reliability of adsorbing the second narrow tape.
[0038] Furthermore, the first jig 110 is provided with a plurality of first partitions 111, which divide the first jig 110 into a plurality of first accommodating spaces 112, and the first narrow band is stored in the first accommodating spaces 112; the second jig 120 is provided with a plurality of second partitions 121, which divide the second jig 120 into a plurality of second accommodating spaces 122, and the first narrow band and the second narrow band are stored in the second accommodating spaces 122 at intervals; the third jig 130 is provided with a plurality of third partitions 131, which divide the third jig 130 into a plurality of third accommodating spaces 132, and the second narrow band is stored in the third accommodating spaces 132.
[0039] In the embodiment of the utility model, by providing a plurality of first accommodating spaces 112 on the first fixture 110, the first fixture 110 can accommodate more first narrow bands. By providing a plurality of third accommodating spaces 132 on the third fixture 130, the third fixture 130 can accommodate more second narrow bands. By providing a plurality of second accommodating spaces 122 on the second fixture 120, the second fixture 120 can stack more first narrow bands and second narrow bands. Thus, the stacking efficiency is improved.
[0040] The above description is only a preferred embodiment of the present application and an explanation of the technical principles used. Those skilled in the art should understand that the scope of the utility model involved in the present application is not limited to the technical solution formed by a specific combination of the above technical features, but should also cover other technical solutions formed by any combination of the above technical features or their equivalent features without departing from the concept of the utility model. For example, the above features are replaced with the technical features with similar functions disclosed in the present application (but not limited to) by each other to form a technical solution.
Claims
1. A narrowband stacking device, characterized in that: include: A workbench, on which a first jig, a second jig and a third jig are placed in sequence, the first jig stores a first narrow band, the third jig stores a second narrow band, and the first narrow band and the second narrow band have different specifications; A frame fixedly connected to the workbench; The first manipulator comprises a first sliding seat, a first longitudinal action mechanism, a first fixed frame and a plurality of first adsorption rods, wherein the plurality of first adsorption rods are fixedly connected to the first fixed frame, the first longitudinal action mechanism is fixedly connected to the first sliding seat, the first fixed frame is connected to the first longitudinal action mechanism, and the first longitudinal action mechanism drives the first fixed frame to move in a vertical direction; The second manipulator comprises a second sliding seat, a second longitudinal action mechanism, a second fixed frame and a plurality of second adsorption rods, wherein the plurality of second adsorption rods are fixedly connected to the second fixed frame, the second longitudinal action mechanism is fixedly connected to the second sliding seat, the second fixed frame is connected to the second longitudinal action mechanism, and the second longitudinal action mechanism drives the second fixed frame to move in a vertical direction; The lateral action mechanism includes a first motor, a first driving pulley, a first driven pulley, a first synchronous belt and a first fixed seat. The first synchronous belt passes around the first driving pulley and the first driven pulley respectively. The first motor drives the first driving pulley to rotate. The first fixed seat is fixedly connected to the top of the frame. The first sliding seat and the second sliding seat are respectively slidably connected to the first fixed seat. The first sliding seat is connected to the first synchronous belt through a first connecting block, and the second sliding seat is connected to the first synchronous belt through a second connecting block.
2. The narrowband stacking device according to claim 1, characterized in that: Two parallel first guide rails are fixedly connected to the first fixed seat, two parallel first sliders are fixedly connected to the first sliding seat, and two parallel second sliders are fixedly connected to the second sliding seat. One first slider and one second slider slide on each of the first guide rails respectively, and the first guide rails are arranged in a horizontal direction.
3. The narrowband stacking device according to claim 2, characterized in that: The first sliding block and the second sliding block are both located above the first guide rail.
4. The narrowband stacking device according to claim 2, characterized in that: The first synchronous belt is located between the two first guide rails.
5. The narrowband stacking device according to claim 1, characterized in that: The first longitudinal action mechanism includes a second motor, a second driving pulley, a second driven pulley, a second synchronous belt, a second fixed seat and a third sliding seat, the second synchronous belt passes around the second driving pulley and the second driven pulley respectively, the second motor drives the second driving pulley to rotate, the second fixed seat is fixedly connected to the first sliding seat, the third sliding seat is slidably connected to the second fixed seat, and the third sliding seat is connected to the second synchronous belt through a third connecting block. The second longitudinal action mechanism includes a third motor, a third driving pulley, a third driven pulley, a third synchronous belt, a third fixed seat and a fourth sliding seat. The third synchronous belt passes around the third driving pulley and the third driven pulley respectively. The third motor drives the third driving pulley to rotate. The third fixed seat is fixedly connected to the first sliding seat. The fourth sliding seat is slidably connected to the third fixed seat. The fourth sliding seat is connected to the third synchronous belt through a fourth connecting block.
6. The narrowband stacking device according to claim 5, characterized in that: The second motor is fixedly connected to the second fixing seat, and the second motor and the third sliding seat are located on both sides of the second fixing seat. The third motor is fixedly connected to the third fixing seat, and the third motor and the fourth sliding seat are located on both sides of the third fixing seat.
7. The narrowband stacking device according to claim 6, characterized in that: The second motor is located above the first sliding seat, a first reinforcing plate is provided between the first sliding seat and the second fixed seat, and the first reinforcing plate is located above the first sliding seat. The third motor is located above the second sliding seat, a second reinforcing plate is arranged between the second sliding seat and the third fixed seat, and the second reinforcing plate is located above the second sliding seat.
8. The narrowband stacking device according to claim 1, characterized in that: A plurality of the first adsorption rods are arranged in a rectangular array on the first fixing frame. A plurality of the second adsorption rods are arranged in a rectangular array on the second fixing frame.
9. The narrowband stacking device according to claim 1, characterized in that: The first fixture is provided with a plurality of first partitions, and the first partitions divide the first fixture into a plurality of first accommodating spaces, and the first narrow strips are stored in the first accommodating spaces. The second fixture is provided with a plurality of second partitions, and the second partitions divide the second fixture into a plurality of second accommodating spaces, and the first narrow band and the second narrow band are stored in the second accommodating spaces at intervals. The third fixture is provided with a plurality of third partitions, and the third partitions divide the third fixture into a plurality of third accommodating spaces, and the second narrow bands are stored in the third accommodating spaces.