Single-core nose bridge strip fixed-length cutting device

Abstract

The utility model relates to the technical field of nose bridge strip cutting, and discloses a single-core nose bridge strip fixed-length cutting device which comprises a base, a first positioner, a material pushing assembly, a second positioner and a cutter used for cutting are sequentially arranged on the base, the first positioner is provided with an auxiliary roller and a limiting roller, the material pushing assembly is provided with a fixing plate, and the second positioner is provided with a limiting roller. The fixing plate is provided with a first power assembly, the first power assembly is provided with a rolling belt a, a lifting plate is arranged above the fixing plate, the lifting plate is provided with a second power assembly, the second power assembly is provided with a rolling belt b, and the rolling belt a and the rolling belt b mutually clamp and push the nose bridge strip; the single-core nose bridge strip cutting device has the advantages that a single-core nose bridge strip is straightened and positioned through the first positioner and the second positioner, then fixed-length material pushing is carried out through the material pushing assembly for cutting, and the material pushing and fixed-length cutting precision is high; and 2, the distance between the rolling belt a and the rolling belt b is controlled through the regulator, so that the pushing assembly can stably clamp the semicircular or full-circle single-core nose bridge strip, and the use is convenient.

Description

Technical Field

[0001] The utility model relates to the technical field of nose bridge strip cutting, in particular to a single-core nose bridge strip fixed-length cutting device. Background Art

[0002] The nose bridge strip, also known as the nose bridge wire, is a component installed in the mask piece, mainly used to support the nose bridge to shape the mask. There are various types of masks, and the types and specifications of nose bridge strips are also diverse, including but not limited to dual-core nose bridge strips, all-plastic nose bridge strips, single-core nose bridge strips, etc. Among them, the single-core nose bridge strip has different thicknesses according to the different cross-sections of the inner core.

[0003] The nose bridge strip needs to be cut before being assembled to the mask. Existing nose bridge strip cutting equipment is usually universal, such as the nose bridge strip cutting equipment disclosed in Chinese patent CN218832065U. Although this type of cutting equipment can be used for various types of nose bridge strips, when transporting a single-core nose bridge strip, due to the raised part in the middle of the single-core nose bridge strip, it is easy to be misaligned when pushing the single-core nose bridge strip for cutting, and the nose bridge strip cannot be accurately pushed to the specified length for cutting, which is inconvenient to use. In view of this, the inventor has made a new invention. Utility Model Content

[0004] The utility model aims to provide a single-core nose bridge strip fixed-length cutting device to address the deficiencies of the prior art, which has the advantages of double-positioning nose bridge strips and precise length determination.

[0005] To achieve the above-mentioned purpose, the utility model provides a single-core nose bridge strip fixed-length cutting device, including a base, on which a first positioner, a pushing assembly, a second positioner, and a cutter for cutting are sequentially arranged, the first positioner is provided with an auxiliary roller and a limiting roller, a limiting groove is provided in the middle of the limiting roller, the second positioner is provided with a positioning channel consistent with the horizontal position of the limiting groove, the pushing assembly is provided with a fixed plate, the fixed plate is provided with a first power assembly, the first power assembly is provided with a roller a, a lifting plate is provided above the fixed plate, the lifting plate is provided with a second power assembly, the second power assembly is provided with a roller b, the roller a and the roller b clamp each other and push the nose bridge strip; an adjuster that can adjust the position of the lifting plate is provided above the lifting plate, and a scale plate that can scale the distance between the fixed plate and the lifting plate is provided on the base.

[0006] Furthermore, a support platform is provided below the second positioner, and the surface of the support platform is in the same horizontal position as the top of the roller a.

[0007] Furthermore, the cutter is provided with a cylinder.

[0008] Furthermore, the first power assembly is provided with a first power wheel, a first synchronous wheel, and a first adjusting wheel for supporting roller a, and the second power assembly is provided with a second power wheel, a second synchronous wheel, and a second adjusting wheel for supporting roller b.

[0009] Furthermore, a first transmission wheel fixedly connected to the first power wheel is provided on the other side of the fixed plate, a second transmission wheel fixedly connected to the second power wheel is provided on the other side of the lifting plate, and a first transmission belt is provided between the first transmission wheel and the second transmission wheel.

[0010] Furthermore, the lifting plate is provided with a third adjusting wheel and a fourth adjusting wheel with adjustable positions, the inner end of the first transmission belt is sleeved on the first transmission wheel, the third adjusting wheel and the fourth adjusting wheel, and the outer end of the first transmission belt abuts against the second transmission wheel, so that the first transmission wheel and the second transmission wheel rotate in opposite directions.

[0011] Furthermore, the first transmission wheel is provided with a first connecting shaft, a driving motor is provided on the fixed plate, the driving motor is provided with a second connecting shaft, and a second transmission belt is provided between the first connecting shaft and the second connecting shaft.

[0012] Furthermore, the fixing plate is provided with a guide column passing through the lifting plate, the adjuster is provided on the top of the guide column, and the adjuster is provided with a screw threadedly connected to the lifting plate.

[0013] Beneficial effects: Compared with the prior art, the utility model provides a fixed-length cutting device for a single-core nose bridge strip, comprising a base, on which a first positioner, a pushing assembly, a second positioner, and a cutting knife for cutting are sequentially arranged, the first positioner is provided with an auxiliary roller and a limiting roller, the pushing assembly is provided with a fixed plate, the fixed plate is provided with a first power assembly, the first power assembly is provided with a roller a, a lifting plate is provided above the fixed plate, the lifting plate is provided with a second power assembly, the second power assembly is provided with a roller b, and the roller a and the roller b clamp and push the nose bridge strip mutually; the utility model has the following advantages: 1. The single-core nose bridge strip is straightened and positioned by the first positioner and the second positioner, and then the pushing assembly is used to push the strip to a fixed length for cutting, and the pushing and fixed-length cutting has high precision; 2. The spacing between the roller a and the roller b is controlled by the regulator, so that the pushing assembly can stably clamp a semicircular or full-circular single-core nose bridge strip, which is easy to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a front structural schematic diagram of the utility model.

[0015] Figure 2 It is a front three-dimensional structural schematic diagram of the utility model.

[0016] Figure 3 It is a schematic diagram of the back three-dimensional structure of the utility model.

[0017] Reference numerals include:

[0018] Base--1, first positioner--2, auxiliary roller--21, limiting roller--22, limiting groove--23, pushing assembly--3, fixing plate--31, first power assembly--311, first power wheel--3111, first synchronous wheel--3112, first adjusting wheel--3113, first transmission wheel--3114, first connecting shaft--3115, driving motor--3116, second connecting shaft--3117, rolling belt a--32, lifting plate--33, second power assembly --331, second power wheel--3311, second synchronous wheel--3312, second adjusting wheel--3313, second transmission wheel--3314, guide column--3315, roller b--34, first transmission belt--35, third adjusting wheel--36, fourth adjusting wheel--37, second transmission belt--38, second positioner--4, positioning channel--41, support table--42, cutter--5, cylinder--51, adjuster--6, screw--61, scale plate--7. DETAILED DESCRIPTION

[0019] The following is combined with Figures 1 to 3 The utility model is described in detail.

[0020] The utility model discloses a fixed-length cutting device for a single-core nose bridge strip, comprising a base 1, on which a first positioner 2, a material pushing assembly 3, a second positioner 4, and a cutter 5 for cutting are sequentially arranged. When in use, the single-core nose bridge strip is unwound from a material roll, passes through the first positioner 2, the material pushing assembly 3, and the second positioner 4 in sequence, and is finally pushed out from the outlet end of the second positioner 4 to be cut into sections by the cutter 5. The first positioner 2 is provided with an auxiliary roller 21 and a limiting roller 22, a limiting groove 23 is provided in the middle of the limiting roller 22, the second positioner 4 is provided with a positioning channel 41 which is in the same horizontal position as the limiting groove 23, the raised part in the middle of the single-core nose bridge strip is clamped with the limiting groove 23 and the positioning channel 41, the material pushing assembly 3 is provided with a fixed plate 31, the fixed plate 31 is provided with a first power assembly 311, the first power assembly 311 is provided with a rolling belt a32, a lifting plate 33 is provided above the fixed plate 31, the lifting plate 33 is provided with a second power assembly 331, and the second power assembly 331 is provided with a roller b34, and the roller a32 and the roller b34 clamp each other to push the nose bridge strip. Specifically, the positioning channel 41 has a certain length, the first locator 2 and the second locator 4 locate the moving position of the single-core nose bridge strip, and the pusher assembly 3 pushes the nose bridge strip from the first locator 2 to the second locator 4, and finally pushes it out from the outlet at the other end of the second locator 4. The cutter 5 is set above the outlet end of the second locator 4. The pusher assembly 3 stops after pushing the single-core nose bridge strip a certain distance, and the cutter 5 cuts immediately. The fixed-length cutting scheme of the utility model has high precision. The regulator 6 that can adjust the position of the lifting plate 33 is set above the lifting plate 33, and the scale plate 7 that can scale the distance between the fixed plate 31 and the lifting plate 33 is set on the base 1. The thickness of the single-core nose bridge strip with a semicircular cross-section and the single-core nose bridge strip with a full circle cross-section are different. The staff controls the spacing between the roller a32 and the roller b34 by observing the scale plate 7 and adjusting the regulator 6, so that the pushing component 3 can stably clamp the single-core nose bridge strips of different thicknesses, avoiding the slipping of the single-core nose bridge strip with a small thickness when being pushed by the pushing component 3, or the damage of the single-core nose bridge strip with a large thickness due to excessive squeezing by the roller a32 and the roller b. The pushing is stable and easy to use.

[0021] A support platform 42 is provided below the second positioner 4, and the surface of the support platform 42 is in the same horizontal position as the top of the roller a32. The support platform 42 can cooperate with the second positioner 4 to position and support the single-core nose bridge strip, which is convenient for the cutter 5 to cut. One end of the support platform 42 extends to the pusher assembly 3 and is close to the roller a32, which reduces the suspended distance of the single-core nose bridge strip during movement, and has high precision in fixed-length cutting.

[0022] The cutter 5 is provided with a cylinder 51. The cylinder 51 drives the cutter 5 to move upward and downward, so as to cut the single-core nose bridge strip. Compared with the motor drive mode that can increase the cutting force, the cylinder 51 drive has the characteristics of high speed, and can perform a cutting operation within 0.1 seconds, with high cutting efficiency.

[0023] The first power assembly 311 is provided with a first power wheel 3111, a first synchronous wheel 3112, and a first adjusting wheel 3113 for supporting roller a32, and the second power assembly 331 is provided with a second power wheel 3311, a second synchronous wheel 3312, and a second adjusting wheel 3313 for supporting roller b34, wherein the first power assembly 311 supports roller a32 so that roller a32 is an inverted triangle, the second power assembly 331 is mirror-symmetrical to the first power assembly 311, and the contact area between roller a32 and roller b34 for clamping the single-core nose bridge strip is large, so the single-core nose bridge strip can be pushed steadily; the first adjusting wheel 3113 and the second adjusting wheel 3313 can adjust the position, so as to facilitate the adjustment of the tightness of roller a32 and roller b34.

[0024] The other side of the fixed plate 31 is provided with a first transmission wheel 3114 fixedly connected to the first power wheel 3111, and the other side of the lifting plate 33 is provided with a second transmission wheel 3314 fixedly connected to the second power wheel 3311, and a first transmission belt 35 is provided between the first transmission wheel 3114 and the second transmission wheel 3314. Through the connection of the first transmission belt 35, the first power assembly 311 and the second power assembly 331 operate synchronously, and the pushing structure is stable.

[0025] More specifically, the lifting plate 33 is provided with a third adjusting wheel 36 and a fourth adjusting wheel 37 whose positions can be adjusted. The inner end of the first transmission belt 35 is sleeved with the first transmission wheel 3114, the third adjusting wheel 36 and the fourth adjusting wheel 37. The outer end of the first transmission belt 35 is in contact with the second transmission wheel 3314, so that the first transmission wheel 3114 and the second transmission wheel 3314 rotate in opposite directions. After the lifting plate 33 is adjusted by the adjuster 6, the tightness of the first transmission belt 35 will also change accordingly. The position of the third adjusting wheel 36 or the fourth adjusting wheel 37 can be adjusted to tighten the first transmission belt 35 and stabilize the transmission structure.

[0026] The first transmission wheel 3114 is provided with a first connecting shaft 3115, a driving motor 3116 is provided on the fixing plate 31, the driving motor 3116 is provided with a second connecting shaft 3117, and a second transmission belt 38 is provided between the first connecting shaft 3115 and the second connecting shaft 3117. In this solution, the pushing assembly 3 can be driven to operate by the driving motor 3116, without other additional power, and the driving structure is simple and stable.

[0027] The fixed plate 31 is provided with a guide column 3315 passing through the lifting plate 33, the adjuster 6 is provided at the top of the guide column 3315, and the adjuster 6 is provided with a screw 61 threadedly connected with the lifting plate 33. In this solution, the staff can manually or electrically drive the screw 61 to rotate, so as to drive the lifting plate 33 to move up and down along the guide column 3315, thereby adjusting the distance between the lifting plate 33 and the fixed plate 31, which is convenient to use.

[0028] The above contents are only preferred embodiments of the present invention. For ordinary technicians in this field, according to the concept of the present invention, there will be changes in the specific implementation methods and application scopes. The contents of this specification should not be understood as limiting the present invention.

Claims

1. A single-core nose bridge strip fixed-length cutting device, comprising a base (1), characterized in that: The base (1) is provided with a first positioner (2), a material pushing assembly (3), a second positioner (4), and a cutter (5) for cutting in sequence. The first positioner (2) is provided with an auxiliary roller (21) and a limiting roller (22). A limiting groove (23) is provided in the middle of the limiting roller (22). The second positioner (4) is provided with a positioning channel (41) whose horizontal position is consistent with the limiting groove (23). The material pushing assembly (3) is provided with a fixing plate (31). The fixing plate (31) is provided with a first power assembly (311). The power assembly (311) is provided with a roller a (32), a lifting plate (33) is provided above the fixed plate (31), the lifting plate (33) is provided with a second power assembly (331), the second power assembly (331) is provided with a roller b (34), the roller a (32) and the roller b (34) mutually clamp and push the nose bridge bar; an adjuster (6) capable of adjusting the position of the lifting plate (33) is provided above the lifting plate (33), and a scale plate (7) capable of calibrating the distance between the fixed plate (31) and the lifting plate (33) is provided on the base (1).

2. A single-core nose bridge strip fixed-length cutting device according to claim 1, characterized in that: A support platform (42) is provided below the second positioner (4), and the surface of the support platform (42) is in the same horizontal position as the top of the roller a (32).

3. A single-core nose bridge strip fixed-length cutting device according to claim 1, characterized in that: The cutter (5) is provided with a cylinder (51).

4. A single-core nose bridge strip fixed-length cutting device according to claim 1, characterized in that: The first power assembly (311) is provided with a first power wheel (3111) supporting roller a (32), a first synchronous wheel (3112), and a first adjusting wheel (3113), and the second power assembly (331) is provided with a second power wheel (3311) supporting roller b (34), a second synchronous wheel (3312), and a second adjusting wheel (3313).

5. A single-core nose bridge strip fixed-length cutting device according to claim 4, characterized in that: A first transmission wheel (3114) fixedly connected to the first power wheel (3111) is disposed on the other side of the fixed plate (31), a second transmission wheel (3314) fixedly connected to the second power wheel (3311) is disposed on the other side of the lifting plate (33), and a first transmission belt (35) is disposed between the first transmission wheel (3114) and the second transmission wheel (3314).

6. A single-core nose bridge strip fixed-length cutting device according to claim 5, characterized in that: The lifting plate (33) is provided with a third adjusting wheel (36) and a fourth adjusting wheel (37) whose positions can be adjusted; the inner end of the first transmission belt (35) is sleeved with the first transmission wheel (3114), the third adjusting wheel (36) and the fourth adjusting wheel (37); the outer end of the first transmission belt (35) is in contact with the second transmission wheel (3314), so that the first transmission wheel (3114) and the second transmission wheel (3314) rotate in opposite directions.

7. A single-core nose bridge strip fixed-length cutting device according to claim 5, characterized in that: The first transmission wheel (3114) is provided with a first connecting shaft (3115), a driving motor (3116) is provided on the fixed plate (31), the driving motor (3116) is provided with a second connecting shaft (3117), and a second transmission belt (38) is provided between the first connecting shaft (3115) and the second connecting shaft (3117).

8. A single-core nose bridge strip fixed-length cutting device according to any one of claims 1 to 7, characterized in that: The fixing plate (31) is provided with a guide column (3315) passing through the lifting plate (33), the adjuster (6) is provided at the top of the guide column (3315), and the adjuster (6) is provided with a screw (61) threadedly connected to the lifting plate (33).

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