Drying setting machine for knitted sock processing

By introducing structures such as motors, threaded rods, hydraulic rods and dual-axis motors into knitted sock drying and shaping equipment, the problem that traditional equipment cannot adapt to knitted socks with different sizes and shapes is solved, efficient shaping and convenient removal are achieved, and production is improved Efficiency and product quality.

CN119102052AInactive Publication Date: 2024-12-10JIANGSU SOUTHWEST INTELLIGENT TEXTILE CO LTD

Patent Information

Application Number
CN202411430974.3
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2024-10-14
Publication Date
2024-12-10
Estimated Expiration
Not applicable · inactive patent

AI Technical Summary

Technical Problem

Traditional knitted sock drying and styling equipment cannot be flexibly adjusted and optimized for knitted socks of different sizes and shapes, resulting in low productivity and inconsistent product quality.

Method used

A drying setting machine including a drying box, motor, threaded rod, shaping rod, hydraulic rod and dual-axis motor is designed. Through the cooperation of these components, it can be shaped and dried according to different sizes and shapes of knitted socks, and The sliding rod and the special-shaped rod are driven by a dual-axis motor to send the platform out, making it easier to remove the dried knitted socks.

Benefits of technology

It realizes precise shaping and drying of knitted socks of different sizes and shapes, improves production efficiency and product quality, and facilitates the removal of dried knitted socks, avoiding the difficulty of taking out in high temperature environments.

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Abstract

The invention belongs to the technical field of knitted sock drying and shaping devices, and discloses a drying and shaping machine for knitted sock processing, which comprises a drying box, a platform is slidably connected in the drying box, a motor is arranged in the platform, and the output shaft end of the motor is rotatably connected with a threaded rod. Through cooperation of an extension rod, a barrel sleeve, a connecting rod, a shaping plate and other structures, knitted socks of different sizes and shapes can be conveniently shaped and dried, and a motor drives a threaded column to rotate so that the extension rod in a shaping rod in threaded connection with the threaded column can be extended and lengthened; after the barrel sleeve is lengthened, the hydraulic rod pushes the barrel sleeve to enable the connecting rod on one side of the barrel sleeve to drive the shaping plate to expand or contract, knitted socks of different sizes or shapes can be shaped and dried, compared with traditional single shaping and drying, the use range is wide, and therefore the effect of shaping and drying the knitted socks of different sizes and shapes is achieved.
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Description

Technical Field

[0001] The invention belongs to the technical field of drying and shaping devices for knitted socks, in particular to a drying and shaping machine for knitted socks processing. Background Art

[0002] In the manufacturing field of knitted socks, the drying and shaping process has an important impact on the quality and appearance of the products. However, traditional knitted socks drying and shaping methods and equipment have many limitations. In the early days, the drying of knitted socks mainly relied on natural drying. This method is not only limited by weather conditions, but also extremely inefficient and cannot meet the needs of large-scale production. Some simple drying equipment that appeared later often lacked precise shaping molds and control methods, making it difficult to ensure the consistency of the size and shape of the knitted socks, resulting in low product productivity. In view of the above background, in order to improve the drying and shaping of knitted socks of different sizes and shapes, the development of a new type of drying and shaping machine for knitted socks processing has become an inevitable demand for the development of the industry.

[0003] The existing knitted socks drying and shaping machines cannot adjust the bracket according to the required size and shape of the knitted socks, so that the effect of drying and shaping the knitted socks usually follows a fixed and relatively traditional method, and lacks the ability to flexibly adjust and optimize knitted socks of different styles and sizes. Therefore, a drying and shaping machine for knitted socks processing is proposed for the above-mentioned device. Summary of the invention

[0004] In order to solve the problem in the above background technology that knitted socks of different sizes and shapes cannot be dried and shaped, the present invention provides a drying and shaping machine for knitted socks processing.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical scheme: a drying and shaping machine for knitted socks processing, comprising a drying box, a platform is slidably connected to the interior of the drying box, a motor is arranged inside the platform, a threaded rod is rotatably connected to the output shaft end of the motor, a threaded column is threadedly connected to the upper surface of the threaded rod, a shaping rod is threadedly connected to one side of the threaded column, an extension rod is rotatably connected to the interior of the shaping rod, a barrel sleeve is slidably connected to one side of the shaping rod, a hydraulic rod is fixedly connected to the top of the barrel sleeve, a connecting rod is rotatably connected to one side of the barrel sleeve, a connecting rod is rotatably connected to a connecting plate at a side away from the barrel sleeve, a shaping plate is fixedly connected to one side of the connecting plate, a slider is fixedly connected to the bottom of the platform, a rotating connecting plate is rotatably connected to the bottom of the slider, a special-shaped rod is rotatably connected to one side of the rotating connecting plate, a sliding rod is slidably connected to one side of the special-shaped rod, and a double-axis motor is arranged on the side of the sliding rod away from the special-shaped rod.

[0006] Preferably, a circular plate is slidably connected to the bottom of the connecting plate, and a sliding groove matching the connecting plate is formed on the upper surface of the circular plate.

[0007] Preferably, a stabilizing block is fixedly connected to one side of the special-shaped rod close to the sliding rod, and connecting columns connected to the special-shaped rod are provided on both sides of the stabilizing block.

[0008] Preferably, the bottom of the stabilizing block is fixedly connected to a bottom box, and one side of the drying box is rotatably connected to a movable door.

[0009] Preferably, a slide groove adapted to the slider is provided at the bottom of the drying box, and an arc connecting plate is fixedly connected to the bottom of the slider.

[0010] Preferably, a special-shaped sliding groove is provided on the surface of the special-shaped rod, and the outer diameter of the sliding rod is matched with the inner diameter of the special-shaped sliding groove.

[0011] Preferably, the shaping plate is in the shape of a quarter of a semi-arc, and the shaping plate is composed of four parts, and the semi-arcs of the four shaping plates form a circle.

[0012] Preferably, a sliding block is fixedly connected to one side of the extension rod, and a notch matched with the sliding block is formed on one side inside the shaping rod.

[0013] Preferably, a cover is fixedly connected to the top of the hydraulic rod, and a sliding sleeve is fixedly connected to the top of the extension rod.

[0014] Preferably, the inner diameter of the sliding sleeve is matched with the outer diameter of the hydraulic rod, and the sleeve cover is fixedly connected to the barrel sleeve.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] The present invention facilitates the shaping and drying of knitted socks of different sizes and shapes by cooperating with structures such as an extension rod, a barrel sleeve, a connecting rod, and a shaping plate. The threaded column is driven by a motor to rotate so that the extension rod inside the shaping rod threadedly connected to the threaded column is extended and lengthened. After lengthening, the barrel sleeve is pushed by a hydraulic rod so that the connecting rod on one side of the barrel sleeve drives the shaping plate to expand or contract. Knitted socks of different sizes or shapes can be shaped and dried. Compared with traditional single shaping and drying, the present invention is more widely used, thereby achieving the effect of shaping and drying knitted socks of different sizes and shapes.

[0017] The present invention facilitates the delivery of the platform through the cooperation of structures such as a slider, a special-shaped rod, a sliding rod, and a double-axis motor setting. The rotation of the double-axis motor drives the sliding rods on both sides to rotate, so that the sliding rods rotate through the special-shaped grooves on the special-shaped rods, driving the special-shaped rods to move forward and backward. The special-shaped rods move forward to drive the sliding rods to slide, and the sliding of the sliding rods facilitates the delivery of the platform, so that the knitted socks can be better taken out after drying and shaping, avoiding the effect that the temperature of the drying box is high and the knitted socks are difficult to take out, thereby achieving the effect of sending the platform to facilitate the removal of the dried knitted socks. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the structure of the present invention;

[0019] Figure 2 It is a schematic diagram of the front cross-section structure of the present invention;

[0020] Figure 3 It is a schematic diagram of the platform structure of the present invention;

[0021] Figure 4 This is an exploded view of the slider of the present invention;

[0022] Figure 5 It is a schematic cross-sectional view of the shaping rod of the present invention;

[0023] Figure 6 It is an exploded view of the shaping rod of the present invention.

[0024] In the figure: 1. drying box; 2. bottom box; 3. movable door; 4. platform; 5. slider; 6. rotating connecting plate; 7. special-shaped rod; 8. sliding rod; 9. double-axis motor; 10. motor; 11. threaded rod; 12. shaping rod; 13. extension rod; 14. threaded column; 15. barrel sleeve; 16. hydraulic rod; 17. connecting rod; 18. shaping plate; 19. round plate; 20. connecting plate; 21. sliding block; 22. stabilizing block. DETAILED DESCRIPTION

[0025] 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.

[0026] like Figures 1 to 6As shown, the present invention provides a drying and shaping machine for knitted socks processing, comprising a drying box 1, a platform 4 is slidably connected inside the drying box 1, a motor 10 is arranged inside the platform 4, a threaded rod 11 is rotatably connected to the output shaft end of the motor 10, a threaded column 14 is threadedly connected to the upper surface of the threaded rod 11, a shaping rod 12 is threadedly connected to one side of the threaded column 14, an extension rod 13 is rotatably connected to the shaping rod 12, a barrel sleeve 15 is slidably connected to one side of the shaping rod 12, a hydraulic rod 16 is fixedly connected to the top of the barrel sleeve 15, a connecting rod 17 is rotatably connected to one side of the barrel sleeve 15, a connecting plate 20 is rotatably connected to the side of the connecting rod 17 away from the barrel sleeve 15, a shaping plate 18 is fixedly connected to one side of the connecting plate 20, a slider 5 is fixedly connected to the bottom of the platform 4, a rotating connecting plate 6 is rotatably connected to the bottom of the slider 5, a special-shaped rod 7 is rotatably connected to one side of the rotating connecting plate 6, a sliding rod 8 is slidably connected to one side of the special-shaped rod 7, and a double-axis motor 9 is arranged on the side of the sliding rod 8 away from the special-shaped rod 7.

[0027] By putting the knitted socks on the shaping plate 18, the motor 10 can be turned on to drive the threaded rod 11 to rotate for knitted socks of different sizes and shapes. While the threaded rod 11 rotates, the threaded column 14 threadedly connected to the threaded rod 11 drives the extension rod 13 in the shaping rod 12 to extend and lift upward, which can facilitate the shaping and drying of some extended knitted socks after being covered. The hydraulic rod 16 can be extended and retracted to drive the barrel sleeve 15, so that the connecting rod 17 connected to the barrel sleeve 15 on one side rotates, so that the connecting plate 20 on one side of the connecting rod 17 slides on the circular plate 19, so that one side of the connecting plate 20 is fixed. The connected shaping plate 18 expands outward or contracts inward, so that some larger-sized knitted socks can be covered and dried and shaped. The shaping plate 18 is in the shape of a quarter arc, so that after the shaping plate 18 expands, the knitted socks are covered, and the sock opening of the knitted socks is also cylindrical. The cylindrical design can transfer heat more evenly to various parts of the knitted socks, ensuring the consistency of the shaping effect and the adequacy of the drying. Traditional shaping equipment often lacks means for adjusting and controlling the shaping mold, and it is difficult to ensure the drying and shaping of knitted socks of different sizes and shapes. The productivity of the product is low. By customizing the sizes and shapes of the knitted socks in a diversified manner, the knitted socks can maintain accurate shapes and sizes during the drying process, thereby improving product quality. After the knitted socks are shaped and dried, the temperature inside the drying box 1 is too high, and the knitted socks need to be removed after cooling. However, the temperature inside some drying boxes 1 with good sealing performance is still high after a long time. At this time, the dual-axis motor 9 can be turned on to drive the sliding rod 8 to rotate. The sliding rod 8 slides in the special-shaped slide groove on the special-shaped rod 7, so that the special-shaped rod 7 is presented forward or backward through the sliding rod 8. The double-axis motor 9 is designed to synchronously drive the slide bars 8 on both sides to rotate, so that the special-shaped rods 7 on both sides synchronously drive the slide bars 5 to be sent outward.

[0028] like Figure 1 , Figure 6 As shown, the bottom of the connecting plate 20 is slidably connected to the circular plate 19, the upper surface of the circular plate 19 is provided with a sliding groove adapted to the connecting plate 20, a stabilizing block 22 is fixedly connected to the side of the special-shaped rod 7 close to the sliding rod 8, both sides of the stabilizing block 22 are provided with connecting columns connected to the special-shaped rod 7, the bottom of the stabilizing block 22 is fixedly connected to the bottom box 2, and a movable door 3 is rotatably connected to one side of the drying box 1.

[0029] The bottom of the connecting plate 20 is slidably connected with a circular plate 19, so that when the connecting plate 20 expands or contracts the shaping plate 18, the bottom of the connecting plate 20 can slide on the circular plate 19 to play a limiting effect, thereby preventing the connecting rod 17 from driving the connecting plate 20 to expand or contract to a large extent or to a small extent. The upper surface of the circular plate 19 is provided with a sliding groove adapted to the connecting plate 20, so that the connecting plate 20 is stuck in the sliding groove on the circular plate 19. A stabilizing block 22 is fixedly connected to the side of the special-shaped rod 7 close to the sliding rod 8. The stabilizing block 22 has the effect of fixing the special-shaped rod 7 through the connecting columns on both sides, so that the special-shaped rod 7 can be Under the effect of the sliding of the rod 8, the special-shaped rod 7 will not fall off, and will only ensure the phenomenon of being sent out or retracted through the sliding rod 8. The bottom of the stabilizing block 22 is fixedly connected to the bottom box 2, which can protect the bottom sending device and avoid mechanical damage or wear caused by being outside for a long time. The bottom box 2 can both protect and stably place the drying box 1. The movable door 3 rotatably connected to one side of the drying box 1 is convenient for taking out the knitted socks after drying. A glass window is also provided on one side of the movable door 3, so that the inside can be observed when the knitted socks are dried and shaped, so as to find problems in time.

[0030] like Figure 2 , Figure 6 As shown, a slide groove matched with the slider 5 is provided at the bottom of the drying box 1, an arc connecting plate is fixedly connected to the bottom of the slider 5, a special-shaped slide groove is provided on the surface of the special-shaped rod 7, the outer diameter of the slide rod 8 is matched with the inner diameter of the special-shaped slide groove, the shape of the forming plate 18 is a quarter of a semi-arc, and the forming plate 18 is composed of four parts, and the semi-arcs of the four forming plates 18 form a circle.

[0031] The bottom of the drying box 1 is provided with a slide groove matched with the slider 5, so that the slider 5 can be sent out and retracted through the slide groove, making it more convenient to take the knitted socks out later. The bottom of the slider 5 is fixedly connected with an arc connecting plate, so that the rotating connecting plate 6 at the bottom of the slider 5 can be rotatably connected with the arc connecting plate, so that the slider 5 and the rotating connecting plate 6 can move forward or retract synchronously. The surface of the special-shaped rod 7 is provided with a special-shaped slide groove, so that the slide rod 8 can move back and forth on the special-shaped rod 7 through the phenomenon of the special-shaped slide groove, thereby driving the special-shaped rod 7 to push forward or retract backward. The outer diameter of the slide rod 8 is matched with the inner diameter of the special-shaped slide groove, so that it will not fall off or get stuck during movement, avoiding the cause of failure The platform 4 is sent out by the method, and the shape of the shaping plate 18 is a quarter of a half arc, so that after the shaping plate 18 is expanded, the knitted socks are covered, and the sock opening of the knitted socks is also cylindrical. The shaping plate 18 is composed of four parts, and the four-part shaping plate 18 is circular after being combined, so that when the knitted socks are shaped and dried, the cylindrical shape design can make the heat more evenly transferred to various parts of the knitted socks, ensuring the consistency of the shaping effect and the adequacy of the drying, thereby improving production efficiency. Secondly, compared with equipment of other shapes, the cylindrical structure is compact and occupies a small area, and can more effectively utilize space in the factory layout. Due to the circular characteristics of the cylinder, the hot air can form a relatively uniform circulation around it, so that the socks are heated evenly, avoiding local overheating or insufficient drying.

[0032] like Figure 5 , Figure 6 As shown, a sliding block 21 is fixedly connected to one side of the extension rod 13, a groove matched with the sliding block 21 is opened on one side inside the shaping rod 12, a sleeve cover is fixedly connected to the top of the hydraulic rod 16, a sliding sleeve is fixedly connected to the top of the extension rod 13, the inner diameter of the sliding sleeve is matched with the outer diameter of the hydraulic rod 16, and the sleeve cover is fixedly connected to the barrel sleeve 15.

[0033] A sliding block 21 is fixedly connected to one side of the extension rod 13, so that the extension rod 13 can slide better inside the shaping rod 12 through the setting of the sliding block 21 during the extension process. The notch matched with the sliding block 21 is opened on one side of the shaping rod 12, which is convenient for the extension rod 13 to extend upward through the sliding of the sliding block 21. A cover is fixedly connected to the top of the hydraulic rod 16. The setting of the cover can not only protect the hydraulic rod 16, but also facilitate the subsequent shaping and drying of the knitted socks column through the cylindrical shape of the cover, so that the hydraulic rod 16 can drive the barrel sleeve 15 while extending and retracting, so that the connecting rod 17 on one side of the barrel sleeve 15 can operate. A sliding sleeve is fixedly connected to the top of the extension rod 13, so that when the hydraulic rod 16 is extended and retracted, the barrel sleeve 15 can be extended by sliding the sliding sleeve. The inner diameter of the sliding sleeve is matched with the outer diameter of the hydraulic rod 16, so that the hydraulic rod 16 can slide better when it is extended and retracted. The cover is fixedly connected to the barrel sleeve 15, so that when the hydraulic rod 16 is extended and retracted, the cover can synchronously drive the barrel sleeve 15 to move.

[0034] The working principle and use process of the present invention:

[0035] First, put the knitted socks on the shaping plate 18. For knitted socks of different sizes and shapes, the motor 10 can be turned on to make the motor 10 drive the threaded rod 11 to rotate. While the threaded rod 11 rotates, the threaded column 14 threadedly connected to the threaded rod 11 drives the extension rod 13 in the shaping rod 12 to extend and lift upward, which can facilitate the shaping and drying of some extended knitted socks after being put on. The hydraulic rod 16 can be extended and retracted to drive the barrel sleeve 15, so that the connecting rod 17 connected to the barrel sleeve 15 on one side rotates, so that the connecting plate 20 on one side of the connecting rod 17 slides on the circular plate 19. The shaping plate 18 fixedly connected to one side of the connecting plate 20 is expanded outward or contracted inward, so that some larger-sized knitted socks can be covered and dried and shaped. After the knitted socks are shaped and dried, the internal temperature of the entire drying box 1 is too high, and the knitted socks need to be removed after cooling. However, the internal temperature of some drying boxes 1 with good sealing performance is still high after a long time. At this time, the double-axis motor 9 can be turned on to drive the sliding rod 8 to rotate, and the sliding rod 8 slides in the special-shaped slide groove on the special-shaped rod 7 to make the special-shaped rod 7 The sliding bar 8 can present the effect of forward or backward movement, and the shaped rod 7 can drive the slider 5 on one side of the rotating connecting plate 6 to be sent forward synchronously. The slider 5 is sent forward so that the platform 4 fixedly connected to the slider 5 can be sent out synchronously, so that the whole knitted sock shaping device is outside the drying box 1, which is convenient for the staff to take off the knitted socks after drying and shaping on the shaping plate 18, avoiding the need for the staff to reach into the drying box 1 to take off the knitted socks. The bottom of the stabilizing block 22 is fixedly connected to the bottom box 2, which can send out the bottom The device has a protective effect to prevent mechanical damage or wear caused by being outside for a long time. The bottom box 2 can not only provide protection but also stably place the drying box 1. A movable door 3 is rotatably connected to one side of the drying box 1, which is convenient for taking out the knitted socks after drying. A glass window is also provided on one side of the movable door 3, so that the inside can be observed when the knitted socks are being dried and shaped, so as to find problems in time. The dual-axis motor 9 is designed to synchronously drive the slide bars 8 on both sides to rotate, so that the special-shaped rods 7 on both sides synchronously drive the slide bars 5 to be sent out.

[0036] 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.

[0037] 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. A drying and shaping machine for knitted socks processing, comprising a drying box (1), characterized in that: The drying box (1) is slidably connected to a platform (4) inside, a motor (10) is arranged inside the platform (4), an output shaft end of the motor (10) is rotatably connected to a threaded rod (11), an upper surface of the threaded rod (11) is threadedly connected to a threaded column (14), one side of the threaded column (14) is threadedly connected to a shaping rod (12), the shaping rod (12) is rotatably connected to an extension rod (13), one side of the shaping rod (12) is slidably connected to a barrel sleeve (15), the top of the barrel sleeve (15) is fixedly connected to a hydraulic rod (16), the barrel sleeve (15) is One side of the sleeve (15) is rotatably connected to a connecting rod (17), and the side of the connecting rod (17) away from the barrel sleeve (15) is rotatably connected to a connecting plate (20), and one side of the connecting plate (20) is fixedly connected to a shaping plate (18). The bottom of the platform (4) is fixedly connected to a sliding block (5), and the bottom of the sliding block (5) is rotatably connected to a rotating connecting plate (6), and one side of the rotating connecting plate (6) is rotatably connected to a special-shaped rod (7), and one side of the special-shaped rod (7) is slidably connected to a sliding rod (8), and a double-axis motor (9) is provided on the side of the sliding rod (8) away from the special-shaped rod (7).

2. The drying and setting machine for knitted socks processing according to claim 1, characterized in that: The bottom of the connecting plate (20) is slidably connected to a circular plate (19), and the upper surface of the circular plate (19) is provided with a sliding groove that matches the connecting plate (20).

3. The drying and setting machine for knitted socks processing according to claim 1, characterized in that: A stabilizing block (22) is fixedly connected to one side of the special-shaped rod (7) close to the slide rod (8), and both sides of the stabilizing block (22) are provided with connecting columns connected to the special-shaped rod (7).

4. The drying and setting machine for knitted socks processing according to claim 3, characterized in that: The bottom of the stabilizing block (22) is fixedly connected to a bottom box (2), and one side of the drying box (1) is rotatably connected to a movable door (3).

5. The drying and setting machine for knitted socks processing according to claim 1, characterized in that: The bottom of the drying box (1) is provided with a slide groove matched with the slider (5), and the bottom of the slider (5) is fixedly connected with an arc connecting plate.

6. The drying and setting machine for knitted socks processing according to claim 1, characterized in that: A special-shaped sliding groove is provided on the surface of the special-shaped rod (7), and the outer diameter of the sliding rod (8) is matched with the inner diameter of the special-shaped sliding groove.

7. The drying and setting machine for knitted socks processing according to claim 1, characterized in that: The shape of the shaping plate (18) is a quarter of a semi-arc shape. The shaping plate (18) is composed of four parts, and the semi-arc shapes of the four shaping plates (18) form a circle.

8. The drying and setting machine for knitted socks processing according to claim 1, characterized in that: A sliding block (21) is fixedly connected to one side of the extension rod (13), and a notch matching the sliding block (21) is provided on one side inside the shaping rod (12).

9. The drying and setting machine for knitted socks processing according to claim 1, characterized in that: The top of the hydraulic rod (16) is fixedly connected with a sleeve cover, and the top of the extension rod (13) is fixedly connected with a sliding sleeve.

10. The drying and setting machine for knitted socks processing according to claim 9, characterized in that: The inner diameter of the sliding sleeve is matched to the outer diameter of the hydraulic rod (16), and the sleeve cover is fixedly connected to the barrel sleeve (15).

Citation Information

Patent Citations

  • Clothes shaping device

    CN104921557A

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    CN212640952U

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    CN212714121U

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    CN217654221U

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