Automatic yarn feeding mechanism of automatic yarn feeding continuous online chopping machine

Abstract

The utility model relates to the technical field of glass fiber chopping equipment, in particular to an automatic yarn feeding mechanism of an automatic yarn feeding continuous online chopping machine. An automatic yarn feeding mechanism of an automatic yarn feeding continuous online chopping machine comprises a yarn feeding wheel, a yarn feeding wheel motor, a yarn feeding hook and a yarn feeding hook driving device. The upper yarn wheel and the upper yarn wheel motor are in transmission connection, and the upper yarn hook is arranged on the upper yarn wheel and can stretch and retract front and back in the axial direction of the upper yarn wheel under the action of the upper yarn hook driving device. According to the yarn feeding mechanism, the yarn feeding hook and the yarn feeding hook driving device are arranged on the yarn feeding mechanism, automatic control over the telescopic state of the yarn feeding hook can be achieved through switching of the air source conduction state, the yarn feeding efficiency of the chopping machine can be improved, and the automatic yarn feeding requirement of the continuous chopping machine is met.

Description

Technical Field

[0001] The present application relates to the technical field of glass fiber chopped short-cut equipment, and in particular to an automatic yarn feeding mechanism of an automatic yarn feeding continuous online short-cutting machine. Background Art

[0002] Glass fiber is an inorganic non-metallic material with excellent performance and comes in many varieties. It is characterized by heat resistance, corrosion resistance, good insulation properties and high mechanical strength. It is usually used as a reinforcing material in composite materials and is widely used in national economic fields such as aerospace, transportation, mechanical electronics, and building materials.

[0003] One of the purposes of chopping glass fiber is to cut the glass fiber yarn into suitable sizes for use so as to process it into the required products. For example, the chopped glass fiber yarn segments are added to cloth or sheet materials and then made into glass fiber cloth or glass fiber sheet materials through other raw materials such as adhesives.

[0004] A chopper is a specialized machine used to chop glass fibers. It is typically equipped with a rubber roller and a knife roller, which work together to achieve continuous chopping of the glass fibers. The automatic yarn feeding mechanism is one of the actuators on the chopper, used to load the yarn into the chopper.

[0005] Existing choppers typically use a starting wheel and a starting motor to pull the glass fiber yarn up. Because the yarn-loading wheel or starting wheel only has a rotary pulling function, yarn loading efficiency is low. Furthermore, in continuous choppers, the existing pulling and starting mechanisms, due to their relatively simple functions, cannot meet the requirements for automatic fiberglass yarn loading. Utility Model Content

[0006] In view of this, the present application provides an automatic yarn feeding mechanism for an automatic yarn feeding continuous online short cutting machine to solve all or part of the technical problems described in the background technology part of the present application.

[0007] The innovative idea of ​​the present application is to improve the yarn feeding efficiency of the short-cutting machine by adopting a yarn feeding hook capable of automatic telescopic control, thereby meeting the automatic yarn feeding needs of the continuous short-cutting machine.

[0008] This application provides solutions to solve the technical problems:

[0009] An automatic yarn feeding mechanism of an automatic yarn feeding continuous online short cutting machine includes an upper yarn wheel, an upper yarn wheel motor, an upper yarn hook, and an upper yarn hook driving device; the upper yarn wheel and the upper yarn wheel motor are transmission-connected, and the upper yarn hook is arranged on the upper yarn wheel and can be extended and retracted forward and backward along the axial direction of the upper yarn wheel under the action of the upper yarn hook driving device.

[0010] When the upper yarn hook extends, the yarn hooking work is performed, and when the upper yarn hook retracts, the upper yarn wheel performs the yarn pulling work.

[0011] Preferably, the upper yarn hook driving device includes a cylinder shaft, a cylinder head, a piston shaft, and a return spring; a cylinder cavity and an air hole are provided on the cylinder shaft; the cylinder cavity, the cylinder head, and the piston shaft constitute a cylinder structure, and the return spring is provided between the piston of the piston shaft and the cylinder head; the upper yarn hook is fixed to the shaft of the piston shaft, and the upper yarn wheel and the cylinder shaft are fixedly connected.

[0012] When compressed air is supplied, the piston shaft drives the upper yarn hook forward, and when the compressed air is cut off, the piston shaft drives the upper yarn hook backward under the action of the return spring. In this way, the extension and retraction state of the upper yarn hook can be automatically controlled by controlling the conduction state of the air source.

[0013] Preferably, a cylinder shaft hole is provided on the upper yarn wheel, and the cylinder shaft is arranged in the cylinder shaft hole; the upper yarn wheel motor and the cylinder shaft are transmission-connected.

[0014] Preferably, the upper yarn wheel is provided with an upper yarn groove and an upper yarn hook accommodating position; the upper yarn hook is located in the upper yarn hook accommodating position.

[0015] The upper yarn groove is an annular groove structure extending along the circumference of the upper yarn wheel and is located at the front end of the upper yarn wheel. The upper yarn hook accommodating position is an oblique groove structure extending along the radial direction of the upper yarn wheel.

[0016] When compressed air is supplied, the upper yarn hook extends from the upper yarn hook accommodating position; when the compressed air is cut off, the upper yarn hook retracts into the upper yarn hook accommodating position.

[0017] Preferably, the upper yarn hook driving device further comprises an upper yarn disc, and the upper yarn wheel is further provided with an upper yarn disc accommodating position; the upper yarn disc is disposed within the upper yarn disc accommodating position and is connected to the shaft portion of the piston shaft, and the upper yarn hook is disposed on the upper yarn disc. Further preferably, the number of upper yarn hooks 30 is three, and the three upper yarn hooks 30 are evenly distributed on the upper yarn disc 4.

[0018] The number of the upper yarn hooks can be one or more, and the plurality of upper yarn hooks are evenly arranged around the upper yarn disc along the circumference of the upper yarn disc and are positioned corresponding to the upper yarn hook accommodating positions on the upper yarn wheel. The plurality of upper yarn hooks extending the yarn together helps to improve the efficiency of the upper yarn.

[0019] Preferably, the automatic yarn feeding mechanism of the automatic yarn feeding continuous online short cutting machine further includes a bearing seat; the cylinder shaft is rotatably arranged in the bearing seat.

[0020] Preferably, the automatic yarn feeding mechanism of the automatic yarn feeding continuous online short cutting machine also includes a driving wheel, a driven wheel, and a transmission belt; the driving wheel and the driven wheel establish a transmission connection through the transmission belt; the driven wheel and the cylinder shaft are fixedly connected, and the driving wheel is transmission-connected to the yarn feeding wheel motor.

[0021] After the upper yarn wheel motor is started, it can drive the upper yarn wheel and the cylinder shaft to rotate through the cooperation of the driving wheel, the driven wheel and the transmission belt.

[0022] Preferably, the automatic yarn feeding mechanism of the automatic yarn feeding continuous online short cutting machine further comprises a mounting base plate, which is used to assemble the automatic yarn feeding mechanism to the short cutting machine; and the yarn feeding wheel motor is arranged on the mounting base plate.

[0023] Beneficial technical effects:

[0024] The present application arranges an upper yarn hook and an upper yarn hook driving device on the yarn feeding mechanism, which can realize automatic control of the extension and retraction state of the upper yarn hook by switching the air source conduction state, which helps to improve the yarn feeding efficiency of the short cutting machine and meet the automatic feeding needs of the continuous short cutting machine.

[0025] The technical solutions and technical effects of this application are described in detail below in conjunction with the accompanying drawings and specific implementation methods. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 : Front view of the automatic head-loading continuous online short cutting machine;

[0027] Figure 2 : Exploded diagram of the automatic yarn feeding mechanism structure;

[0028] Figure 3 : Three-dimensional structural diagram of automatic yarn feeding mechanism.

[0029] Icon Description:

[0030] 10-upper yarn wheel, 20-upper yarn wheel motor, 30-upper yarn hook, 40-upper yarn hook driving device, 50-bearing seat, 60-driving wheel, 70-driven wheel, 80-mounting base plate;

[0031] 110-cylinder shaft hole, 120-upper yarn groove, 130-upper yarn hook accommodating position, 140-upper yarn disc accommodating position;

[0032] 410-cylinder shaft, 420-cylinder head, 430-piston shaft, 440-return spring, 450-upper yarn disc;

[0033] 4110-cylinder chamber, 4120-air hole. DETAILED DESCRIPTION

[0034] Direction description: The front, back, left, and right directions are the ones facing the machine.

[0035] See also Figures 1 to 3 The automatic yarn feeding mechanism of the automatic yarn feeding continuous online short cutting machine disclosed in this application includes:

[0036] The upper yarn wheel 10 is provided with a cylinder shaft hole 110, an upper yarn groove 120, an upper yarn hook accommodating position 130, and an upper yarn disc accommodating position 140. The upper yarn groove 120 is an annular groove structure extending along the circumference of the upper yarn wheel 10 and is located at the front end of the upper yarn wheel 10. The upper yarn hook accommodating position 130 is an oblique groove structure extending along the radial direction of the upper yarn wheel 10.

[0037] The upper yarn wheel motor 20 is used to drive the upper yarn wheel 10 to rotate.

[0038] The three upper yarn hooks 30 are all fixedly arranged on the upper yarn disc 450 and are evenly distributed along the circumference of the upper yarn disc 450.

[0039] The upper yarn hook driving device 40 includes a cylinder shaft 410 , a cylinder cover 420 , a piston shaft 430 , a return spring 440 , and an upper yarn disc 450 .

[0040] A cylinder cavity 4110 and an air hole 4120 are provided on the cylinder shaft 410 , and the air hole 4120 is connected to the cylinder cavity 4110 .

[0041] The piston shaft 430 includes a piston and a shaft portion.

[0042] Cylinder chamber 4110, cylinder head 420, and piston shaft 430 constitute a cylinder structure. Cylinder head 420 is disposed at the opening of cylinder chamber 4110 and is sealed therewith. Piston shaft 430 is disposed within cylinder chamber 4110, with its shaft portion extending out of cylinder head 420. Return spring 440 is disposed within cylinder chamber 4110 and positioned between the piston of piston shaft 430 and cylinder head 420.

[0043] The upper yarn disc 450 is fixedly assembled on the extended shaft portion of the piston shaft 430 and is located in the upper yarn disc accommodating position 140. The upper yarn hook 30 is arranged in the upper yarn hook accommodating position 130. The upper yarn wheel 10 and the cylinder shaft 410 are fixedly connected.

[0044] The bearing seat 50 is used to connect the frame of the short cutting machine and support the upper yarn wheel 10 and the cylinder shaft 410. The cylinder shaft 410 is arranged in the bearing seat 50 and is transmission-connected to the upper yarn wheel motor 20.

[0045] The upper yarn wheel motor 20 is connected to the cylinder shaft 410 through the driving wheel 60, the driven wheel 70 and the conveyor belt.

[0046] Fixed connection between driven wheel 70 and the cylinder shaft 410, driving wheel 60 transmission connection is connected to upper yarn wheel motor 20. Driving wheel 60, driven wheel 70 set up transmission connection by transmission belt. Upper yarn wheel motor 20 is fixedly arranged on the mounting base plate 80.

[0047] Principle of Operation: After the upper yarn wheel motor 20 is started, it drives the cylinder shaft 410 and the upper yarn wheel 10 to rotate together. When compressed air is connected to hook the yarn, the piston shaft 430 drives the upper yarn disc 450 to move forward along the axial direction of the upper yarn wheel 10, and the upper yarn hook 30 extends from the upper yarn hook receiving position 130 to hook the yarn. After hooking the yarn, the compressed air is disconnected, and the piston shaft 430, under the action of the return spring 440, drives the upper yarn disc 450 to move backward along the axis of the upper yarn wheel 10, and the upper yarn hook 30 retracts into the upper yarn hook receiving position 130.

[0048] Therefore, by arranging the upper yarn hook 30 and the upper yarn hook driving device 40 on the yarn feeding mechanism, the present application can realize automatic control of the telescopic state of the upper yarn hook 30 by switching the air source conduction state, which helps to improve the yarn feeding efficiency of the short cutting machine and meet the automatic feeding needs of the continuous short cutting machine.

[0049] In a modified embodiment of the present application, the upper yarn wheel motor 20 can also establish a transmission connection with the cylinder shaft 410 via a transmission shaft.

[0050] The above describes the technical solution and technical effects of the present application in detail in combination with the drawings and specific embodiments of the specification. It should be noted that technicians in this field can also develop other embodiments on this basis; any simple deformation and equivalent substitution that does not deviate from the innovative concept of the present application are covered by the present application and fall within the scope of protection of this patent.

Claims

1. An automatic yarn feeding mechanism for an automatic yarn feeding continuous online short cutting machine, characterized by: It comprises an upper yarn wheel (10), an upper yarn wheel motor (20), an upper yarn hook (30), and an upper yarn hook driving device (40); The upper yarn wheel (10) and the upper yarn wheel motor (20) are transmission-connected, and the upper yarn hook (30) is arranged on the upper yarn wheel (10) and can be extended and retracted forward and backward along the axial direction of the upper yarn wheel (10) under the action of the upper yarn hook driving device (40).

2. The automatic yarn feeding mechanism of the automatic yarn feeding continuous online short cutting machine according to claim 1 is characterized in that: The upper yarn hook driving device (40) comprises a cylinder shaft (410), a cylinder cover (420), a piston shaft (430), and a return spring (440); The cylinder shaft (410) is provided with a cylinder cavity (4110) and an air hole (4120); the cylinder cavity (4110), the cylinder head (420), and the piston shaft (430) form a cylinder structure; the return spring (440) is provided between the piston of the piston shaft (430) and the cylinder head (420); The upper yarn hook (30) is fixed to the shaft portion of the piston shaft (430), and the upper yarn wheel (10) and the cylinder shaft (410) are fixedly connected.

3. The automatic yarn feeding mechanism of the automatic yarn feeding continuous online short cutting machine according to claim 2 is characterized in that: A cylinder shaft hole (110) is provided on the upper yarn wheel (10), and the cylinder shaft (410) is arranged in the cylinder shaft hole (110); The upper yarn wheel motor (20) and the cylinder shaft (410) are transmission-connected.

4. The automatic yarn feeding mechanism of the automatic yarn feeding continuous online short cutting machine according to claim 2 is characterized in that: The upper yarn wheel (10) is provided with an upper yarn groove (120) and an upper yarn hook accommodating position (130); The upper yarn hook (30) is located in the upper yarn hook accommodating position (130).

5. The automatic yarn feeding mechanism of the automatic yarn feeding continuous online short cutting machine according to claim 4 is characterized in that: The upper yarn hook driving device (40) further includes an upper yarn disc (450), and the upper yarn wheel (10) is further provided with an upper yarn disc accommodating position (140); The upper yarn disc (450) is arranged in the upper yarn disc accommodating position (140) and is connected to the shaft portion of the piston shaft (430), and the upper yarn hook (30) is arranged on the upper yarn disc (450).

6. The automatic yarn feeding mechanism of the automatic yarn feeding continuous online short cutting machine according to claim 5, characterized in that: The number of the upper yarn hooks (30) is three, and the three upper yarn hooks (30) are evenly arranged on the upper yarn disk (450).

7. The automatic yarn feeding mechanism of the automatic yarn feeding continuous online short cutting machine according to claim 2, characterized in that: The automatic yarn feeding mechanism of the automatic yarn feeding continuous online short cutting machine further comprises a bearing seat (50); the cylinder shaft (410) is rotatably arranged in the bearing seat (50).

8. The automatic yarn feeding mechanism of the automatic yarn feeding continuous online short cutting machine according to claim 2 is characterized in that: The automatic yarn feeding mechanism of the automatic yarn feeding continuous online short cutting machine further includes a driving wheel (60), a driven wheel (70), and a transmission belt; The driving wheel (60) and the driven wheel (70) are connected in transmission via the transmission belt; The driven wheel (70) and the cylinder shaft (410) are fixedly connected, and the driving wheel (60) is transmission-connected to the upper yarn wheel motor (20).

9. The automatic yarn feeding mechanism of the automatic yarn feeding continuous online short cutting machine according to claim 1, characterized in that: The automatic yarn feeding mechanism of the automatic head-loading continuous online short-cutting machine further comprises a mounting base plate (80), and the mounting base plate (80) is used to assemble the automatic yarn feeding mechanism to the short-cutting machine; The upper yarn wheel motor (20) is arranged on the mounting seat plate (80).

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