Edge trimming device for knitted hat production

Abstract

The utility model relates to the technical field of trimming technologies, in particular to an edge trimming device for knitted cap production, which comprises a hollow cylinder, a guide ring fixedly mounted on the outer side of the hollow cylinder, and a slider slidably sleeved on the outer side of the guide ring; a plurality of evenly-distributed air suction holes are formed in the front face of the protective cover, a knife rest driven by a driving motor to rotate is rotationally installed in an inner cavity of the protective cover, the driving motor is fixedly installed on the installation plate, and a fan blade plate is fixed to the knife rest and obliquely arranged; the knitting cap trimming device has the beneficial effects that the outer side of the guide ring is slidably sleeved with the sliding block, the trimmer is arranged above the sliding block and comprises the mounting plate and the protective cover, the driving motor is fixed to the surface of the mounting plate, and air drives thread residues on a knitting cap to penetrate through the air suction hole to enter an inner cavity of the protective cover, so that a blade conducts trimming conveniently; according to the device, the protective cover can be attached to the surface of the knitted hat through counter-acting force generated on the trimmer when air flows, and therefore the trimming effect is improved.

Description

Technical Field

[0001] This utility model relates to the field of trimming technology, specifically to a trimming device for the production of knitted hats. Background Technology

[0002] Knitted hats are a type of hat commonly used in cold weather and suitable for people of all ages. They are made of wool knitted together, hence the name. When wearing knitted hats, people often turn the brim outwards. To avoid the loose threads at the brim affecting the appearance, the loose threads at the brim need to be trimmed during the production of knitted hats.

[0003] In the prior art, Chinese invention with announcement number CN114990833B discloses a thread trimming device for knitted garments. It mainly uses a fan and an air suction bucket to create negative pressure, flattening the garment on the top of a mesh plate, and then uses a motor to drive blades to trim the threads on the garment.

[0004] However, currently, the edge of knitted hats has a circular structure, making it difficult to fit smoothly onto the mesh plate of traditional trimming devices, resulting in poor trimming effects. Therefore, this invention proposes an edge trimming device for knitted hat production to solve the above problems. Utility Model Content

[0005] The purpose of this invention is to provide an edge trimming device for the production of knitted hats, in order to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a brim trimming device for knitted hat production, comprising:

[0007] A hollow cylinder, wherein a guide ring is fixedly installed on the outer side of the hollow cylinder, a slider is slidably sleeved on the outer side of the guide ring, and a trimmer is installed above the slider via a connecting frame;

[0008] The trimmer includes a mounting plate and a protective cover, which are snapped together. The front of the protective cover has multiple evenly distributed air intake holes. The inner cavity of the protective cover is rotatably mounted with a blade holder driven by a drive motor. The drive motor is fixedly mounted on the mounting plate. A fan blade is fixed on the blade holder and is inclined. A blade is fixed on the fan blade and the cutting edge of the blade is in contact with the inner wall of the front of the protective cover.

[0009] Preferably, the middle part of the mounting plate is recessed inward to form a motor compartment for mounting the drive motor, and the middle part of the tool holder is fixedly provided with a bushing for the output shaft of the drive motor to be inserted and fixed.

[0010] Preferably, the fan blades are provided in a plurality of arrangements in a circular array, and the blades on the fan blades are coplanar with the fan blades.

[0011] Preferably, the tool holder includes two hard rings concentric with the bushing, and a stiffening plate is fixed between the hard ring near the bushing and the surface of the bushing, and the stiffening plate is inclined.

[0012] Preferably, an annular partition is fixed to the inner side of the mounting plate, and a gap is left between the annular partition and the inner wall of the protective cover. A slag discharge port is opened on the side wall of the annular partition, and an exhaust port is opened on the side wall of the protective cover.

[0013] Preferably, a baffle and a filter plate are provided in the gap between the mounting plate and the protective cover, and both the baffle and the filter plate are fixed to the annular partition. The baffle, the slag discharge port, the filter plate and the exhaust port are all provided in a ring array of multiple locations, and the four are distributed at intervals in sequence.

[0014] Preferably, the upper and lower ends of the sidewall of the hollow cylinder are respectively provided with through hole one and through hole two, and an annular plate is fixedly connected between the guide ring and the hollow cylinder.

[0015] Preferably, an annular pad is fixed to the surface of the annular plate, and a motor-driven roller is installed on the outside of the slider, with the roller surface in contact with the annular pad.

[0016] Preferably, the outer side wall of the slider is provided with a slot, the lower end of the connecting frame is fixed with an elastic plate and the elastic plate is movably engaged in the inner cavity of the slot, and the upper end of the connecting frame is fixedly connected to the mounting plate on the trimmer.

[0017] Compared with the prior art, the beneficial effects of this utility model are:

[0018] This invention features a slider slidably mounted on the outside of a guide ring, with a trimmer positioned above the slider. The trimmer includes a mounting plate and a protective cover. A drive motor is fixed to the surface of the mounting plate, and a blade holder driven by the drive motor is rotatably mounted inside the protective cover. A fan blade is fixed to the blade holder and is inclined, with a blade fixed to the fan blade and adhering to the inner wall of the front of the protective cover. When the blade holder rotates, both the fan blade and the blade drive airflow. On one hand, the reaction force of the air on the trimmer allows the front of the protective cover to adhere to the surface of the knitted hat's edge. On the other hand, the air carries the loose threads from the knitted hat through the air intake hole into the inner cavity of the protective cover, facilitating trimming by the blade. Then, by sliding the slider outside the guide ring, the trimmer can trim a circumference of the knitted hat's edge. This device improves the trimming effect by using the reaction force of the airflow on the trimmer to adhere the protective cover to the surface of the knitted hat. Attached Figure Description

[0019] Figure 1 This is a three-dimensional schematic diagram of the overall structure of this utility model;

[0020] Figure 2This is a three-dimensional schematic diagram of the hollow cylinder structure of this utility model;

[0021] Figure 3 This is a schematic diagram showing the separation of the slider and connecting frame structure of this utility model;

[0022] Figure 4 This is an exploded view of the structure of the trimmer of this utility model;

[0023] Figure 5 This is a three-dimensional schematic diagram of the tool holder structure of this utility model;

[0024] Figure 6 This is a cross-sectional view of the mounting plate and protective cover structure of this utility model.

[0025] In the diagram: 1. Hollow cylinder; 11. Through hole one; 12. Through hole two; 2. Guide ring; 21. Annular plate; 22. Annular pad; 3. Slider; 31. Slot; 32. Roller; 4. Connecting frame; 41. Elastic clamping plate; 5. Trimmer; 6. Mounting plate; 61. Annular partition; 611. Slag discharge port; 612. Baffle; 613. Filter plate; 62. Motor compartment; 7. Protective cover; 71. Air intake port; 72. Exhaust port; 8. Knife holder; 81. Fan blade plate; 811. Blade; 82. Bushing; 9. Drive motor. Detailed Implementation

[0026] To make the objectives, technical solutions, and advantages of this utility model clear and complete, the embodiments of this utility model will be further described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are only some, not all, embodiments of this utility model, and are merely used to explain the embodiments of this utility model. They are not intended to limit the embodiments of this utility model. All other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0027] Example 1, please refer to Figures 1-6 This utility model provides a technical solution: a trimming device for the edge of knitted hats, comprising: a hollow cylinder 1, such as... Figure 1 As shown, the knitted cap is placed on the outer side of the upper end of the hollow cylinder 1 from top to bottom, and the edge of the knitted cap is turned outward.

[0028] Specifically, a guide ring 2 is fixedly installed on the outside of the hollow cylinder 1, and a slider 3 is slidably sleeved on the outside of the guide ring 2. The slider 3 can only slide along the length direction of the guide ring 2. The slider 3 itself is cylindrical and has an arc-shaped through hole inside that matches the guide ring 2. A trimmer 5 is installed above the slider 3 through a connecting frame 4. When the slider 3 slides, it can drive the trimmer 5 to move accordingly.

[0029] Furthermore, the trimmer 5 includes a mounting plate 6 and a protective cover 7, which are snapped together. The protective cover 7 is a cylindrical structure with an opening at one end. Multiple evenly distributed air intake holes 71 are provided on the front of the protective cover 7, allowing airflow. This airflow then carries the loose threads from the knitted cap into the inner cavity of the protective cover 7. A blade holder 8, driven by a drive motor 9, is rotatably mounted inside the protective cover 7. The drive motor 9 is fixedly mounted on the mounting plate 6. A fan blade 81 is fixed to the blade holder 8, and the fan blade 81 is inclined. A blade 811 is fixed to the fan blade 81, and the cutting edge of the blade 811 is in contact with the inner wall of the front of the protective cover 7. When the drive motor 9 operates, it drives the blade holder 8, the fan blade 81, and the blade 811 to rotate together. Figure 5 As shown, both the fan blade 81 and the blade 811 are inclined, so when they rotate, they can drive the air to flow along the axial direction of the protective cover 7, thereby drawing the air outside the protective cover 7 into the inner cavity of the protective cover 7 through the air intake hole 71. The reaction force generated by the air flow on the trimmer 5 can press the trimmer 5 onto the surface of the knitted cap. At this time, the air flow can drive the thread ends on the surface of the knitted cap through the air intake hole 71 into the inner cavity of the protective cover 7, and then the blade 811 rotates to cut and trim the thread ends that have entered the inner cavity of the protective cover 7.

[0030] To drive the tool holder 8 to rotate, this application also includes a motor compartment 62 formed by an inward recess in the middle of the mounting plate 6 for mounting the drive motor 9, and a bushing 82 for inserting and fixing the output shaft of the drive motor 9 is fixedly provided in the middle of the tool holder 8. Figure 5 As shown, the inner cavity of the bushing 82 is a non-circular irregular slot structure, and the output shaft of the drive motor 9 is adapted to it.

[0031] To improve trimming efficiency, the fan blades 81 of this application are provided in a plurality of circular arrays, and the blades 811 on the fan blades 81 are coplanar with them, such as... Figure 5 As shown, multiple fan blades 81 can be fitted with multiple blades 811 to improve the efficiency of trimming wire ends and at the same time increase the flow rate of the driving airflow.

[0032] To secure the bushing 82, the tool holder 8 of this application includes two hard rings concentric with the bushing 82. A stiffening plate is fixed between the hard ring near the bushing 82 and the surface of the bushing 82, and the stiffening plate is inclined. The two hard rings can improve the stability of the fan blade plate 81 installation. The stiffening plate is inclined in the same direction as the fan blade plate 81. On the one hand, it is used to connect the hard ring and the bushing 82, and on the other hand, it can assist in driving airflow.

[0033] To expel air from the inner cavity of the protective cover 7, this application further includes an annular partition 61 fixed to the inner side of the mounting plate 6, with a gap between the annular partition 61 and the inner wall of the protective cover 7. The annular partition 61 has a slag discharge port 611 on its side wall, and the protective cover 7 has an exhaust port 72 on its side wall. Figure 6 and Figure 4 As shown, after the air outside the protective cover 7 enters the inner cavity of the protective cover 7, the air flow path is as follows: from the inside of the annular partition 61, it passes through the slag discharge port 611 and enters the gap between the annular partition 61 and the protective cover 7, and then passes through the exhaust port 72 to be discharged to the outside of the protective cover 7.

[0034] To prevent waste residue from scattering, this application further includes a baffle 612 and a filter plate 613 installed in the gap between the mounting plate 6 and the protective cover 7. Both the baffle 612 and the filter plate 613 are fixed to the annular partition 61. Multiple baffles 612, discharge ports 611, filter plates 613, and exhaust ports 72 are arranged in a circular array, with each array spaced apart sequentially. Figure 6 As shown, after air enters the gap between the annular partition 61 and the protective cover 7 through the slag discharge port 611, it will be blocked by the baffle 612. The air can only pass through the filter plate 613 and then be discharged from the exhaust port 72. The filter plate 613 is designed to filter the wire waste carried in the air, thereby preventing the wire waste generated after trimming from being discharged into the surrounding air and scattered. In other words, the trimmed wire waste will remain in the gap between the annular partition 61 and the protective cover 7. After using this device for a long time, the protective cover 7 can be removed from the mounting plate 6 to dispose of the wire waste.

[0035] To facilitate smoother airflow around the trimmer 5, this application further includes through holes 11 and 12 at the upper and lower ends of the side wall of the hollow cylinder 1, respectively. Figure 2 As shown, when air flows around the trimmer 5, due to the large gap between the needles in the knitted cap, the air inside the hollow cylinder 1 can flow through the knitted cap. This ensures smooth airflow and prevents the trimmer 5 from fitting too tightly with the knitted cap, thus blocking airflow. It also blows out some loose threads hidden inside the knitted cap. Furthermore, an annular plate 21 is fixedly connected between the guide ring 2 and the hollow cylinder 1. Figure 2 As shown, the thickness of the annular plate 21 is less than the cross-sectional diameter of the guide ring 2. The annular plate 21 is used to position the guide ring 2 and ensure that the guide ring 2 is concentric with the hollow cylinder 1.

[0036] In order to drive the slider 3 to slide, this application also has an annular pad 22 fixed on the surface of the annular plate 21, and a roller 32 driven by a motor installed on the outside of the slider 3, with the surface of the roller 32 in contact with the annular pad 22. The motor drives the roller 32 to roll on the surface of the annular pad 22, thereby enabling the slider 3 to slide along the length direction of the guide ring 2.

[0037] For the installation of the trimmer 5, this application also includes a slot 31 formed on the outer wall of the slider 3, an elastic plate 41 fixed to the lower end of the connecting frame 4, and the elastic plate 41 movably engaging with the inner cavity of the slot 31. The upper end of the connecting frame 4 is fixedly connected to the mounting plate 6 on the trimmer 5. Figure 3 As shown, the connecting frame 4 can rotate around the slider 3 at a certain angle outside the slider 3, thereby ensuring that the trimmer 5 can approach or move away from the knitted cap fitted on the outside of the hollow cylinder 1.

[0038] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A brim trimming device for knit cap production, characterized by: Include: The hollow cylinder (1), the outer side of the hollow cylinder (1) is fixedly installed with a guide ring (2), the outer side of the guide ring (2) is slidably sleeved with a sliding block (3), the upper side of the sliding block (3) is installed with a trimmer (5) through a connecting frame (4); The trimmer (5) includes a mounting plate (6) and a protective cover (7), and both are clamped and fixed, a plurality of evenly distributed air inlet holes (71) are formed in the front surface of the protective cover (7), a knife holder (8) driven to rotate by a driving motor (9) is rotatably installed in the inner cavity of the protective cover (7), the driving motor (9) is fixedly installed on the mounting plate (6), the knife holder (8) is fixed with a fan blade (81), and the fan blade (81) is inclinedly arranged, the fan blade (81) is fixed with a blade (811), and the blade (811) is attached to the front inner wall of the protective cover (7).

2. A brim trimming device for the production of knit hats according to claim 1, characterized in that: The middle part of the mounting plate (6) is recessed inward to form a motor compartment (62) for installing the driving motor (9), and the middle part of the knife holder (8) is fixedly provided with a shaft sleeve (82) for inserting and fixing the output shaft of the driving motor (9).

3. A brim trimming device for the production of knit hats according to claim 1, characterized in that: The fan blade (81) is provided with a plurality of and arranged in an annular array, and the blade (811) on the fan blade (81) is coplanar.

4. A brim trimming device for hat production according to claim 1, characterized in that: The knife holder (8) includes two hard rings concentric with the shaft sleeve (82), and a stiffened plate is fixed between the hard ring close to the shaft sleeve (82) and the surface of the shaft sleeve (82), and the stiffened plate is inclinedly arranged.

5. A brim trimming device for hat production according to claim 1, characterized in that: The inner side of the mounting plate (6) is fixedly provided with an annular partition plate (61), and a gap is left between the annular partition plate (61) and the inner wall of the protective cover (7), the side wall of the annular partition plate (61) is provided with a residue discharge port (611), and the side wall of the protective cover (7) is provided with an exhaust port (72).

6. A brim trimming device for the production of knit hats according to claim 5, characterized in that: The gap between the mounting plate (6) and the protective cover (7) is provided with a baffle (612) and a filter plate (613), and both are fixed with the annular partition plate (61), the baffle (612), the residue discharge port (611), the filter plate (613) and the exhaust port (72) are all provided with a plurality of annular array distribution, and the four are sequentially and spacedly distributed.

7. A brim trimming device for hat production according to claim 1, characterized in that: The upper and lower ends of the side wall of the hollow cylinder (1) are respectively provided with a through hole one (11) and a through hole two (12), and the annular plate (21) is fixedly connected between the guide ring (2) and the hollow cylinder (1).

8. A brim-trimming device for the production of knit hats according to claim 7, characterized in that: The surface of the annular plate (21) is fixedly provided with an annular pad (22), and the outer side of the sliding block (3) is provided with a roller (32) driven by a motor, and the surface of the roller (32) is attached to the annular pad (22).

9. A brim trimming device for hat production according to claim 1, characterized in that: The outer side wall of the sliding block (3) is provided with a clamping groove (31), the lower end of the connecting frame (4) is fixedly provided with an elastic clamping plate (41), and the elastic clamping plate (41) is movably clamped in the inner cavity of the clamping groove (31), and the upper end of the connecting frame (4) is fixedly connected with the mounting plate (6) on the trimmer (5).

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