Intelligent cable irradiation processing device

Abstract

The invention relates to the technical field of cable irradiation, in particular to an intelligent cable irradiation treatment device which comprises a shell, two rotating plates, an irradiation mechanism, a cleaning mechanism, a guide mechanism and a transmission mechanism I. The rotating plates are rotationally connected to the inner surface of the shell, the irradiation mechanism is slidably connected to the outer surface of one rotating plate, and the cleaning mechanism is arranged on the outer surface of the other rotating plate. The cleaning mechanism is slidably connected to the outer surface of the other rotating plate, the guiding mechanism is rotatably connected to the outer surface of the shell, and the driving mechanism is arranged on the outer surface of the rotating plate. According to the intelligent cable irradiation processing device, normal irradiation processing of a cable can be achieved, meanwhile, the drying efficiency of the cable after irradiation processing and cleaning can be improved, and the drying efficiency of the cable after cleaning can be improved. When irradiation processing is carried out on cables with different diameters, the power of the ultraviolet lamp in the irradiation mechanism does not need to be adjusted, so that the energy consumption of the ultraviolet lamp can be reduced, and the production cost is reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of cable irradiation, and in particular to an intelligent cable irradiation processing device. Background Art

[0002] Intelligent cable irradiation treatment device is a processing equipment used in the cable production process, which usually changes the physical and chemical properties of the material or achieves a specific treatment effect through irradiation to improve the heat resistance, wear resistance or other properties of the cable;

[0003] When some existing cable irradiation processing devices are used, multiple ultraviolet lamps rotating around the cable axis as the center are set on the outside of the cable to irradiate the cable to ensure the uniformity of the cable irradiation processing. When irradiating cables of different diameters, the position of the ultraviolet lamp is fixed, and the distance between the ultraviolet lamp and the cable will change. In order to ensure the processing effect of the cable, the irradiation processing of the cable is generally completed by adjusting the power of the ultraviolet lamp. In this case, the ultraviolet lamp needs to be set at the outermost side of the cable to meet the irradiation processing requirements of cables of different diameters, resulting in high energy consumption of the ultraviolet lamp and increased production costs. For this reason, we propose an intelligent cable irradiation processing device. Summary of the invention

[0004] A technical problem to be solved by the present application is that when irradiating cables of different diameters, since the position of the ultraviolet lamp is fixed, the distance between the ultraviolet lamp and the cable will change. In order to ensure the processing effect of the cable, the irradiation processing of the cable is generally completed by adjusting the power of the ultraviolet lamp. In this case, the ultraviolet lamp needs to be set at the outermost side of the cable to meet the irradiation processing requirements of cables of different diameters, resulting in high energy consumption of the ultraviolet lamp and increased production costs.

[0005] In order to solve the above technical problems, the embodiment of the present application provides an intelligent cable radiation treatment device, including a housing, and also including:

[0006] A rotating plate, wherein the rotating plate is rotatably connected to the inner surface of the shell, and there are two rotating plates;

[0007] An irradiation mechanism, which is slidably connected to the outer surface of one of the rotating plates and is used for irradiation processing of the cable surface;

[0008] A cleaning mechanism, the cleaning mechanism being slidably connected to the outer surface of another rotating plate and used for surface cleaning of the cable after irradiation and washing;

[0009] A guide mechanism, which is rotatably connected to the outer surface of the shell and is used for guiding and conveying the cable during irradiation, cleaning and surface cleaning;

[0010] A driving mechanism, the driving mechanism is arranged on the outer surface of the rotating plate, the driving mechanism is rotatably connected to the housing, and is used to drive the rotating plate;

[0011] Transmission mechanism one, the transmission mechanism one is slidably connected to the inner surface of the shell, the transmission mechanism one is in contact with the guide mechanism, and the transmission mechanism one is fixedly connected to the irradiation mechanism and the cleaning mechanism respectively, and is used for position adjustment of the irradiation mechanism and the cleaning mechanism.

[0012] In some embodiments, the irradiation mechanism includes a plurality of slide plates slidably connected to the outer surface of one of the rotating plates, and the plurality of slide plates are evenly distributed, and an ultraviolet lamp is disposed on the outer surface of the slide plate.

[0013] In some embodiments, the cleaning mechanism includes a plurality of slide plates 2 slidably connected to the outer surface of another rotating plate, and the slide plates 2 are evenly distributed, the inner surface of the slide plates 2 is rotatably connected to a damping shaft, the outer surface of the damping shaft is provided with a connecting block, and the outer surface of the connecting block is provided with cleaning cotton.

[0014] In some embodiments, the guide mechanism includes a rotating ring rotatably connected to the outer surface of the shell, the outer surface of the rotating ring is provided with a support plate, the outer surface of the support plate is provided with a support seat, the inner surface of the support seat is rotatably connected with a rotating shaft, the outer surface of the rotating shaft is provided with a guide wheel, and the outer surface of the support plate is hinged with an adjustment mechanism.

[0015] In some embodiments, the adjustment mechanism includes a connecting rod hinged on the outer surface of the support plate, a slider is hinged between the two connecting rods, the two sliders are both slidably connected to the shell, the inner surfaces of the two sliders are threaded with a bidirectional screw rod, the bidirectional screw rod is rotatably connected to the shell, and a handwheel is provided on the middle outer surface of the bidirectional screw rod.

[0016] In some embodiments, the driving mechanism includes a worm wheel disposed on the outer surface of the rotating plate, the outer surface of the worm wheel is meshingly connected with a worm, the worm is rotatably connected to the housing, and a transmission mechanism 2 is disposed at one end of the worm.

[0017] In some embodiments, the transmission mechanism 2 includes a pulley 1 arranged at one end of the worm, a pulley 2 is arranged on the outer surface of the rotating shaft, and the pulley 2 is connected to the pulley 1 through a belt body transmission.

[0018] In some embodiments, the transmission mechanism 1 includes a transmission plate 1 slidably connected to the inner surface of the shell, a connecting rod is provided on the outer surface of the transmission plate 1, a transmission rod is provided on the outer surface of the connecting rod, the transmission rod is in contact with a groove provided on the support seat, a transmission plate 2 is slidably connected to the outer surface of the transmission plate 1, the transmission plate 2 is slidably connected to the shell, and an adjustment mechanism 2 is movably provided on the outer surface of the transmission plate 2.

[0019] In some embodiments, the second adjustment mechanism includes an adjustment plate movably arranged on the outer surface of the second transmission plate, the outer surface of the adjustment plate is slidably connected with an adjustment rod, the adjustment rod is fixedly connected to the first slide plate, and the adjustment rod is fixedly connected to the second slide plate.

[0020] In some embodiments, the support plate and the support seat are both made of polypropylene plastic.

[0021] The present invention has at least the following beneficial effects:

[0022] 1. By setting the rotating plate, irradiation mechanism, guide mechanism, driving mechanism and transmission mechanism 2, the normal irradiation processing of the cable is realized. By setting the cleaning mechanism, the water droplets on the surface of the cable can be cleaned after the irradiation processing and cleaning of the cable, so as to improve the drying efficiency of the cable after irradiation processing and cleaning. When irradiating cables of different diameters, the spacing of the guide wheels in the guide mechanism can be adjusted by adjusting the first adjustment mechanism. At the same time, by setting the first transmission mechanism and the second adjustment mechanism, the ultraviolet lamp in the irradiation mechanism and the cleaning cotton in the cleaning mechanism can be synchronously adjusted in the process of adjusting the spacing of the guide wheels in the guide mechanism. Different from the method of ensuring the irradiation effect of the cable by adjusting the power when the ultraviolet lamp is fixed and the spacing between the ultraviolet lamp and the cable changes, the spacing adjustment of the guide wheel, the synchronous adjustment of the ultraviolet lamp and the cleaning cotton position can be completed by turning the hand wheel, so that the spacing between the ultraviolet lamp and the cable remains unchanged, and there is no need to adjust the power, thereby reducing the energy consumption of the ultraviolet lamp and reducing the production cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0024] Figure 2 For the present invention Figure 1 Schematic diagram of the shell structure in FIG.

[0025] Figure 3 For the present invention Figure 2 Schematic diagram of the shell cross-sectional structure;

[0026] Figure 4 For the present invention Figure 3 A schematic diagram of a local structure of the transmission mechanism in FIG.

[0027] Figure 5 For the present invention Figure 4 A schematic diagram of the enlarged structure of area A;

[0028] Figure 6 For the present invention Figure 4 Schematic diagram of the enlarged structure of area B;

[0029] Figure 7 For the present invention Figure 3 Schematic diagram of the rotating plate structure in FIG.

[0030] Figure 8 This is a structural diagram of Example 2 of the present invention.

[0031] In the figure: 1. shell; 2. rotating plate; 3. irradiation mechanism; 31. slide plate 1; 32. ultraviolet lamp; 4. cleaning mechanism; 41. slide plate 2; 42. damping shaft; 43. connecting block; 44. cleaning cotton; 5. guiding mechanism; 51. rotating ring; 52. supporting plate; 53. supporting seat; 54. rotating shaft; 55. guide wheel; 56. adjusting mechanism 1; 561. connecting rod; 562. sliding block; 563. two-way screw rod; 564. hand wheel; 6. driving mechanism; 61. worm wheel; 62. worm; 63. transmission mechanism 2; 631. pulley 1; 632. pulley 2; 633. belt body; 7. transmission mechanism 1; 71. transmission plate 1; 72. connecting rod; 73. transmission rod; 74. transmission plate 2; 75. adjusting mechanism 2; 751. adjusting plate; 752. adjusting rod. DETAILED DESCRIPTION

[0032] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0033] Example 1

[0034] See also Figure 1-7 , the present invention provides a technical solution:

[0035] An intelligent cable radiation treatment device includes a housing 1 and further includes:

[0036] A rotating plate 2, the rotating plate 2 is rotatably connected to the inner surface of the shell 1, and there are two rotating plates 2;

[0037] An irradiation mechanism 3, which is slidably connected to the outer surface of one of the rotating plates 2 and is used for irradiation processing of the cable surface;

[0038] A cleaning mechanism 4, the cleaning mechanism 4 is slidably connected to the outer surface of another rotating plate 2, and is used for cleaning the surface of the cable after irradiation and washing;

[0039] A guide mechanism 5, which is rotatably connected to the outer surface of the housing 1 and is used for guiding and conveying the cable during irradiation, cleaning and surface cleaning;

[0040] A driving mechanism 6, which is disposed on the outer surface of the rotating plate 2 and is rotatably connected to the housing 1 and is used to drive the rotating plate 2;

[0041] Transmission mechanism 7, transmission mechanism 7 is slidably connected to the inner surface of the shell 1, transmission mechanism 7 is in contact with the guide mechanism 5, and transmission mechanism 7 is fixedly connected to the irradiation mechanism 3 and the cleaning mechanism 4 respectively, and is used for position adjustment of the irradiation mechanism 3 and the cleaning mechanism 4.

[0042] The interior of the housing 1 is divided into a cable irradiation area, a cable cleaning area, and a cable drying area:

[0043] The cable irradiation area is the area on the cable surface that is irradiated and processed;

[0044] The cable cleaning area is the surface cleaning area of ​​the cable after irradiation processing;

[0045] The cable drying area is a drying area after the cable surface is cleaned, and the cleaning mechanism 4 is located in the cable drying area.

[0046] Specifically, Figure 2 , Figure 3 , Figure 4 , Figure 5 and Figure 7 As shown, the irradiation mechanism 3 includes a plurality of slide plates 31 slidably connected to the outer surface of one of the rotating plates 2, and the plurality of slide plates 31 are evenly distributed, and an ultraviolet lamp 32 is arranged on the outer surface of the slide plate 31.

[0047] Specifically, Figure 2 , Figure 3 , Figure 4 , Figure 6 and Figure 7 As shown, the cleaning mechanism 4 includes a plurality of slide plates 41 slidably connected to the outer surface of another rotating plate 2, and the slide plates 41 are evenly distributed, the inner surface of the slide plates 41 is rotatably connected to a damping shaft 42, the outer surface of the damping shaft 42 is provided with a connecting block 43, and the outer surface of the connecting block 43 is provided with cleaning cotton 44.

[0048] Specifically, Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, the guide mechanism 5 includes a rotating ring 51 rotatably connected to the outer surface of the shell 1, the outer surface of the rotating ring 51 is provided with a support plate 52, the outer surface of the support plate 52 is provided with a support seat 53, the inner surface of the support seat 53 is rotatably connected to a rotating shaft 54, the outer surface of the rotating shaft 54 ​​is provided with a guide wheel 55, and the outer surface of the support plate 52 is hinged with an adjustment mechanism 56.

[0049] Specifically, Figure 1 , Figure 2and Figure 3 As shown, the adjustment mechanism 56 includes a connecting rod 561 hinged on the outer surface of the support plate 52, a slider 562 is hinged between the two connecting rods 561, the two sliders 562 are both slidably connected to the shell 1, the inner surfaces of the two sliders 562 are threadedly connected with a bidirectional screw rod 563, the bidirectional screw rod 563 is rotatably connected to the shell 1, and a hand wheel 564 is provided on the outer surface of the middle part of the bidirectional screw rod 563.

[0050] Specifically, Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 6 and Figure 7 As shown, the driving mechanism 6 includes a worm wheel 61 arranged on the outer surface of the rotating plate 2, the outer surface of the worm wheel 61 is meshedly connected with a worm 62, the worm 62 is rotatably connected to the housing 1, and a transmission mechanism 2 63 is arranged at one end of the worm 62.

[0051] Specifically, Figure 1 , Figure 2 and Figure 3 As shown, the transmission mechanism 2 63 includes a pulley 1 631 arranged at one end of the worm 62 , and a pulley 2 632 is arranged on the outer surface of the rotating shaft 54 ​​, and the pulley 2 632 is connected to the pulley 1 631 through a belt body 633 .

[0052] Specifically, Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 and Figure 7 As shown, the transmission mechanism 7 includes a transmission plate 71 slidably connected to the inner surface of the shell 1, a connecting rod 72 is provided on the outer surface of the transmission plate 71, a transmission rod 73 is provided on the outer surface of the connecting rod 72, the transmission rod 73 is in contact with the groove provided on the support seat 53, the outer surface of the transmission plate 71 is slidably connected to the transmission plate 2 74, the transmission plate 2 74 is slidably connected to the shell 1, and an adjustment mechanism 2 75 is movably provided on the outer surface of the transmission plate 2 74.

[0053] Specifically, Figure 3 , Figure 4 , Figure 5 and Figure 7 As shown, the second adjustment mechanism 75 includes an adjustment plate 751 movably arranged on the outer surface of the transmission plate 74, and an adjustment rod 752 is slidably connected to the outer surface of the adjustment plate 751. The adjustment rod 752 is fixedly connected to the slide plate 1 31, and the adjustment rod 752 is fixedly connected to the slide plate 2 41.

[0054] The transmission plate 2 74 and the adjustment plate 751 are in a state of rotational connection. When the transmission plate 2 74 moves, it can drive the adjustment plate 751 to move. When the adjustment plate 751 rotates, the transmission plate 2 74 can maintain its position.

[0055] When in use, the guide wheel 55 is used to guide and transport the cable. Since the cable contacts the guide wheel 55, the cable will drive the guide wheel 55 to rotate during movement, and then the guide wheel 55 rotates to drive the rotating shaft 54 ​​to rotate, thereby driving the second pulley 632 to rotate, and then the second pulley 632 rotates to drive the first pulley 631 to rotate, thereby driving the worm 62 to rotate, and then the worm wheel 61 rotates through the rotation of the worm 62, thereby driving the rotating plate 2 to rotate, and then the rotating plate 2 rotates to make the adjusting plate 751, the adjusting rod 752, the slide plate 1 31, the ultraviolet lamp 32, the slide plate 2 41, the damping shaft 42, the connecting block 43 and the cleaning cotton 44 rotate. The rotating plate 2 rotates with the center of the rotating plate 2 as the center of the circle, and then the ultraviolet lamp 32 rotating with the center of the rotating plate 2 as the center of the circle irradiates the cable. After the irradiation, the cable enters the cable cleaning area inside the housing 1 for cleaning, and then enters the cable drying area for drying. During the drying process, the cleaning cotton 44 rotating with the center of the rotating plate 2 as the center of the circle cleans the water droplets on the surface of the cable. Since the cleaning cotton 44 is in contact with the cable, the cable will drive the cleaning cotton 44 to rotate slowly during the movement, so that the cleaning cotton 44 part stained with water droplets is separated from the cable for drying, thereby ensuring the cleaning effect of the cleaning cotton 44.

[0056] When irradiating cables of different diameters, the hand wheel 564 is rotated to drive the bidirectional screw rod 563 to rotate through the rotation of the hand wheel 564, and then the slider 562 is moved through the rotation of the bidirectional screw rod 563, thereby driving the connecting rod 561 to move, and then the supporting plate 52 is driven to rotate with the center of the rotating ring 51 as the center through the movement of the connecting rod 561, thereby driving the supporting seat 53, the rotating shaft 54 ​​and the guide wheel 55 to rotate with the center of the rotating ring 51 as the center, so as to complete the adjustment of the spacing between the guide wheels 55. During this process, the second pulley 632 rotates with the rotating shaft 54, which can ensure the transmission effect between the second pulley 632 and the first pulley 631. At the same time, the support seat 53 is rotated with the center of the rotating ring 51 as the center, which can drive the transmission rod 73 to move up or down, and then the connecting rod 72 is driven up or down by the upward or downward movement of the transmission rod 73. The adjusting rod 752 is then driven by the adjusting plate 751 to move in the axial direction of the cable, so that the slide plate 1 31, the ultraviolet lamp 32, the slide plate 2 41, the damping shaft 42, the connecting block 43 and the cleaning cotton 44 are moved to appropriate positions, and the positions of the ultraviolet lamp 32 and the cleaning cotton 44 are adjusted. During this process, the transmission plate 2 74 and the adjusting rod 752 are 45° in the axial direction of the cable, so that the vertical movement distance of the support seat 53 is the same as the movement distance of the ultraviolet lamp 32 and the cleaning cotton 44, so as to ensure the effect of synchronous adjustment.

[0057] Example 2

[0058] See also Figure 8 , the present invention provides a technical solution:

[0059] Different from the first embodiment, the support plate 52 and the support seat 53 are both made of polypropylene plastic.

[0060] Polypropylene plastic material has the characteristics of light weight, corrosion resistance and high hardness. When the support plate 52 and the support seat 53 made of polypropylene plastic material are used, they are light in weight, thereby facilitating the adjustment of the positions of the support plate 52 and the support seat 53.

[0061] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0062] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An intelligent cable irradiation treatment device, comprising a housing (1), characterized in that: Also included are: A rotating plate (2), wherein the rotating plate (2) is rotatably connected to the inner surface of the shell (1), and there are two rotating plates (2); An irradiation mechanism (3), the irradiation mechanism (3) being slidably connected to the outer surface of one of the rotating plates (2) and used for irradiation processing of the cable surface; A cleaning mechanism (4), the cleaning mechanism (4) being slidably connected to the outer surface of another rotating plate (2) and used for cleaning the surface of the cable after irradiation and washing; A guide mechanism (5), the guide mechanism (5) being rotatably connected to the outer surface of the housing (1) and used for guiding and conveying the cable during irradiation, cleaning and surface cleaning; A driving mechanism (6), the driving mechanism (6) being arranged on the outer surface of the rotating plate (2), the driving mechanism (6) being rotatably connected to the housing (1) and being used for driving the rotating plate (2); A transmission mechanism (7) is slidably connected to the inner surface of the housing (1), the transmission mechanism (7) is in contact with the guide mechanism (5), and the transmission mechanism (7) is fixedly connected to the irradiation mechanism (3) and the cleaning mechanism (4) respectively, and is used for adjusting the position of the irradiation mechanism (3) and the cleaning mechanism (4).

2. The intelligent cable irradiation treatment device according to claim 1, characterized in that: The irradiation mechanism (3) comprises a plurality of slide plates (31) slidably connected to the outer surface of one of the rotating plates (2), and the plurality of slide plates (31) are evenly distributed, and an ultraviolet lamp (32) is arranged on the outer surface of the slide plate (31).

3. The intelligent cable irradiation treatment device according to claim 2, characterized in that: The cleaning mechanism (4) comprises a plurality of slide plates (41) slidably connected to the outer surface of another rotating plate (2), and the slide plates (41) are evenly distributed, the inner surface of the slide plates (41) is rotatably connected to a damping shaft (42), the outer surface of the damping shaft (42) is provided with a connecting block (43), and the outer surface of the connecting block (43) is provided with cleaning cotton (44).

4. The intelligent cable irradiation treatment device according to claim 3, characterized in that: The guide mechanism (5) comprises a rotating ring (51) rotatably connected to the outer surface of the shell (1); a support plate (52) is arranged on the outer surface of the rotating ring (51); a support seat (53) is arranged on the outer surface of the support plate (52); a rotating shaft (54) is rotatably connected to the inner surface of the support seat (53); a guide wheel (55) is arranged on the outer surface of the rotating shaft (54); and an adjustment mechanism (56) is hingedly connected to the outer surface of the support plate (52).

5. The intelligent cable irradiation treatment device according to claim 4, characterized in that: The first adjustment mechanism (56) comprises a connecting rod (561) hinged on the outer surface of the support plate (52), a slider (562) is hinged between the two connecting rods (561), the two sliders (562) are both slidably connected to the housing (1), the inner surfaces of the two sliders (562) are threadedly connected with a bidirectional screw rod (563), the bidirectional screw rod (563) is rotatably connected to the housing (1), and a hand wheel (564) is provided on the outer surface of the middle part of the bidirectional screw rod (563).

6. The intelligent cable radiation treatment device according to claim 5, characterized in that: The driving mechanism (6) comprises a worm wheel (61) arranged on the outer surface of the rotating plate (2); the outer surface of the worm wheel (61) is meshingly connected with a worm (62); the worm (62) is rotationally connected to the housing (1); and a transmission mechanism 2 (63) is arranged at one end of the worm (62).

7. The intelligent cable irradiation treatment device according to claim 6, characterized in that: The transmission mechanism 2 (63) comprises a pulley 1 (631) arranged at one end of the worm (62), and a pulley 2 (632) is arranged on the outer surface of the rotating shaft (54), and the pulley 2 (632) is connected to the pulley 1 (631) through a belt body (633).

8. The intelligent cable radiation treatment device according to claim 7, characterized in that: The transmission mechanism 1 (7) comprises a transmission plate 1 (71) slidably connected to the inner surface of the shell (1); a connecting rod (72) is provided on the outer surface of the transmission plate 1 (71); a transmission rod (73) is provided on the outer surface of the connecting rod (72); the transmission rod (73) is in contact with a groove provided on the support seat (53); a transmission plate 2 (74) is slidably connected to the outer surface of the transmission plate 1 (71); the transmission plate 2 (74) is slidably connected to the shell (1); and an adjustment mechanism 2 (75) is movably provided on the outer surface of the transmission plate 2 (74).

9. The intelligent cable radiation treatment device according to claim 8, characterized in that: The second adjustment mechanism (75) comprises an adjustment plate (751) movably arranged on the outer surface of the second transmission plate (74); the outer surface of the adjustment plate (751) is slidably connected with an adjustment rod (752); the adjustment rod (752) is fixedly connected to the first slide plate (31); and the adjustment rod (752) is fixedly connected to the second slide plate (41).

10. The intelligent cable radiation treatment device according to claim 9, characterized in that: The support plate (52) and the support seat (53) are both made of polypropylene plastic.

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