A doffing device for a spinning frame

Abstract

This utility model discloses a doffing device for a spinning machine, belonging to the technical field of doffing devices. It includes a base plate with casters mounted at its four corners. A collection box is placed on top of the base plate, and a sand-removing mechanism is located above the collection box. An auxiliary mechanism is located on one side of the sand-removing mechanism, including an extension plate. A second hydraulic cylinder is fixedly connected to the bottom of the extension plate, and a horizontal plate is fixedly connected to the bottom of the second hydraulic cylinder. Several equally spaced levers are fixedly connected to the bottom of the horizontal plate. The beneficial effect is that the levers are extended into the collection box by the second hydraulic cylinder, and the movement of the levers flattens the yarn bobbins inside the collection box, improving the space utilization rate within the collection box.

Description

Technical Field

[0001] This utility model relates to the technical field of doffing devices, and in particular to a doffing device for a spinning frame. Background Technology

[0002] The spinning frame is an important piece of equipment in the textile industry, mainly used to spin roving or sliver into fine yarn. Through processes such as drafting and twisting, it tightly binds the fibers to form yarn with a certain strength and fineness. The spinning frame needs to doff the yarn because during the spinning process, the yarn on the bobbin will gradually become more and more entangled. When the bobbin is full, it needs to be removed by a doffing device to facilitate timely replacement of the bobbin and ensure continuous production.

[0003] A search of Chinese Patent Publication No. CN222961653U reveals a doffing device for a spinning machine, comprising a doffing box. Two first slide rails are fixedly mounted on the top of the doffing box. First sliders are movably fitted onto the outer walls of both first slide rails. A movable frame is fixedly connected between the tops of the two first sliders. Two first sliding grooves are formed on the inner wall of the movable frame. A lifting plate is slidably embedded between the inner walls of the two first sliding grooves. A cylinder is fixedly connected to the top of the lifting plate, and the telescopic end of the cylinder movably penetrates the interior of the movable frame. One side of the outer wall of the lifting plate is fixedly... A first electric push rod is fixedly connected to the lifting plate. A mounting frame is fixedly connected to one side of the outer wall of the lifting plate. Two second sliding grooves are opened on the outer wall of the mounting frame. A second slider is slidably embedded in the inner wall of each of the two second sliding grooves. A moving plate is fixedly connected to the outer wall of each of the two second sliders. A set of clamping plates is fixedly installed on the outer wall of each of the two moving plates. A collection box is placed inside the doffing box. A set of yarn bobbins is precisely clamped by the two sets of clamping plates. Then, under the combined action of the first electric push rod and the cylinder, the clamped yarn bobbins are further and smoothly lifted to a predetermined height and automatically released into the collection box.

[0004] After the yarn spools fall into the collection box from a certain height, they become quite messy inside the box, which may result in some space not being fully utilized and affect the utilization rate of the collection box. Utility Model Content

[0005] The purpose of this invention is to provide a doffing device for a spinning machine in order to solve the above-mentioned problems.

[0006] This utility model achieves the above objectives through the following technical solutions:

[0007] A doffing device for a spinning machine includes a base plate with four casters at the bottom corners. A collection box is placed on top of the base plate, and a sand-dropping mechanism is located above the collection box. An auxiliary mechanism is located on one side of the sand-dropping mechanism. The auxiliary mechanism includes an extension plate, a second hydraulic cylinder is fixedly connected to the bottom of the extension plate, a horizontal plate is fixedly connected to the bottom of the second hydraulic cylinder, and several equally spaced levers are fixedly connected to the bottom of the horizontal plate.

[0008] Preferably, the sand removal mechanism includes a frame fixedly connected to the top of the base plate, an electric slide rail installed between the inner walls of the frame, a movable plate slidably connected on the electric slide rail, an extension plate fixedly connected to the side wall of the movable plate, a first hydraulic cylinder fixedly connected to the bottom of the movable plate, a mounting box fixedly connected to the bottom of the first hydraulic cylinder, and a clamping assembly provided on the side wall of the mounting box.

[0009] Preferably, a connecting pipe is fixedly connected between the second hydraulic cylinder and the first hydraulic cylinder.

[0010] Preferably, the clamping assembly includes several fixed clamping plates fixedly connected to the side wall of the mounting box. The fixed clamping plates are located on the side of the mounting box away from the lever. A stepper motor is fixedly connected to the front side of the mounting box. The output end of the stepper motor is connected to a lead screw through a coupling. The lead screw is rotatably connected between the inner walls of the mounting box. Several sliders are threaded onto the lead screw. Movable clamping plates are fixedly connected to the side walls of the sliders. The movable clamping plates are used in pairs with the fixed clamping plates.

[0011] Preferably, the side wall of the mounting box has a movable cavity, and the movable clamp slides within the movable cavity.

[0012] Preferably, an arc-shaped groove is provided on the side where the fixed clamping plate and the movable clamping plate are close to each other.

[0013] Preferably, limit blocks are provided at both ends of the electric slide rail.

[0014] The beneficial effect is that the lever is extended into the collection box by the second hydraulic cylinder, and the yarn tubes in the collection box are flattened as the lever moves, thus improving the space utilization rate of the collection box.

[0015] The additional technical features and advantages of this utility model will become more apparent from the following description, or may be learned through specific practice of this utility model. Attached Figure Description

[0016] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the following detailed description to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0017] Figure 1 This is a schematic diagram of the overall structure of a doffing device for a spinning frame according to the present invention;

[0018] Figure 2 This is a front view of a doffing device for a spinning machine according to the present invention;

[0019] Figure 3 This is a top view of a doffing device for a spinning machine according to the present invention;

[0020] Figure 4 This is a schematic diagram of the clamping assembly of a doffing device for a spinning machine according to the present invention;

[0021] Figure 5 This is a schematic diagram of the auxiliary mechanism of the doffing device for a spinning machine according to the present invention.

[0022] The reference numerals in the attached drawings are explained as follows: 1. Base plate; 101. Moving wheel; 102. Collection box; 201. Frame; 202. Electric slide rail; 203. Moving plate; 204. First hydraulic cylinder; 205. Mounting box; 206. Fixed clamping plate; 207. Stepper motor; 208. Lead screw; 209. Slider; 210. Movable clamping plate; 301. Extension plate; 302. Second hydraulic cylinder; 303. Horizontal plate; 304. Lever; 305. Connecting pipe. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0024] In the description of this utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", and "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, all electrical components mentioned in this document are electrically connected to an external main controller and 220V AC mains power, and the main controller can be a conventional known device such as a computer that provides control.

[0025] The present invention will be further described below with reference to the accompanying drawings:

[0026] like Figures 1-5 As shown, a doffing device for a spinning machine includes a base plate 1, with movable wheels 101 installed at the four corners of the bottom of the base plate 1, a collection box 102 placed on the top of the base plate 1, and a sand-removing mechanism arranged above the collection box 102. The sand-removing mechanism includes a frame 201 fixedly connected to the top of the base plate 1, an electric slide rail 202 installed between the inner walls of the frame 201, limit blocks provided at both ends of the electric slide rail 202, a movable plate 203 slidably connected to the electric slide rail 202, a first hydraulic cylinder 204 fixedly connected to the bottom of the movable plate 203, and a mounting box 205 fixedly connected to the bottom of the first hydraulic cylinder 204.

[0027] The side wall of the mounting box 205 is provided with a clamping assembly, which includes several fixed clamping plates 206 fixedly connected to the side wall of the mounting box 205. The fixed clamping plates 206 are located on the side of the mounting box 205 away from the lever 304. A stepper motor 207 is bolted to the front side of the mounting box 205. The output end of the stepper motor 207 is connected to a lead screw 208 through a coupling. The lead screw 208 is rotatably connected between the inner walls of the mounting box 205. Several sliders 209 are threaded onto the lead screw 208. A movable clamping plate 210 is fixedly connected to the side wall of the slider 209. The side wall of the mounting box 205 has a movable cavity. The movable clamping plate 210 slides in the movable cavity. The movable clamping plate 210 is used in pairs with the fixed clamping plate 206. In actual use, a suitable length of fixed clamping plate 206 and movable clamping plate 210 is selected as needed. An arc-shaped groove is opened on the side of the fixed clamping plate 206 and movable clamping plate 210 that are close to each other.

[0028] An auxiliary mechanism is provided on one side of the sand removal mechanism. The auxiliary mechanism includes an extension plate 301, which is fixedly connected to the side wall of the movable plate 203. A second hydraulic cylinder 302 is fixedly connected to the bottom of the extension plate 301. A connecting pipe 305 is fixedly connected between the second hydraulic cylinder 302 and the first hydraulic cylinder 204. A horizontal plate 303 is fixedly connected to the bottom of the second hydraulic cylinder 302. Several equally spaced levers 304 are fixedly connected to the bottom of the horizontal plate 303.

[0029] Working principle: First, with the assistance of the moving wheel 101, the base plate 1 is moved to a suitable position. The moving plate 203 drives the fixed clamping plate 206 and the movable clamping plate 210 to move towards the yarn bobbin. After the yarn bobbin is located in the arc-shaped groove between the fixed clamping plate 206 and the movable clamping plate 210, the lever 304 reaches above one end of the collecting box 102, and the stepper motor 207 is started. The stepper motor 207 drives the lead screw 208 to rotate. The lead screw 208 drives several sliders 209 to move the movable clamping plate 210 towards the fixed clamping plate 206. The fixed clamping plate 206 and the movable clamping plate 210 clamp the yarn bobbin. Then, the first hydraulic cylinder 204 drives the mounting box 205 to move upward, removing the yarn bobbin from the spinning machine. While the first hydraulic cylinder 204 drives the mounting box 205 to move upward, it will squeeze the excess hydraulic oil in the first hydraulic cylinder 204 into the second hydraulic cylinder 302 through the connecting pipe 305, thereby... The second hydraulic cylinder 302 drives the horizontal plate 303 to move the lever 304 downward, so that the lever 304 extends into the collection box 102. Then, the movement of the moving plate 203 brings the yarn bobbin to the appropriate position. The stepper motor 207 reverses, causing the movable clamping plate 210 to move away from the fixed clamping plate 206, releasing the yarn bobbin. The released yarn bobbin falls into the collection box 102. While the moving plate 203 moves, it drives the extension plate 301 to move with the lever 304, flattening the yarn bobbin in the collection box 102 and improving the space utilization rate in the collection box 102. Then, the first hydraulic cylinder 204 drives the mounting box 205 to move upward, starting the next sand removal. While the first hydraulic cylinder 204 drives the mounting box 205 to move, it also extracts the hydraulic oil in the second hydraulic cylinder 302, causing the second hydraulic cylinder 302 to drive the horizontal plate 303 and the lever 304 to move upward, so that the lever 304 extends out of the collection box 102.

[0030] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.

Claims

1. A doffing device for a spinning machine, comprising a base plate (1), wherein movable wheels (101) are installed at the four bottom corners of the base plate (1), a collection box (102) is placed on the top of the base plate (1), and a sand-dropping mechanism is provided above the collection box (102), characterized in that: An auxiliary mechanism is provided on one side of the sand-falling mechanism. The auxiliary mechanism includes an extension plate (301). A second hydraulic cylinder (302) is fixedly connected to the bottom of the extension plate (301). A horizontal plate (303) is fixedly connected to the bottom of the second hydraulic cylinder (302). A number of equally spaced levers (304) are fixedly connected to the bottom of the horizontal plate (303).

2. A doffing device for a spinning frame according to claim 1, characterized in that: The sand-falling mechanism includes a frame (201) fixedly connected to the top of the base plate (1), an electric slide rail (202) installed between the inner walls of the frame (201), a movable plate (203) slidably connected on the electric slide rail (202), an extension plate (301) fixedly connected to the side wall of the movable plate (203), a first hydraulic cylinder (204) fixedly connected to the bottom of the movable plate (203), a mounting box (205) fixedly connected to the bottom of the first hydraulic cylinder (204), and a clamping assembly provided on the side wall of the mounting box (205).

3. The doffing device for a spinning frame according to claim 2, characterized in that: A connecting pipe (305) is fixedly connected between the second hydraulic cylinder (302) and the first hydraulic cylinder (204).

4. The doffing device for a spinning frame according to claim 2, characterized in that: The clamping assembly includes several fixed clamping plates (206) fixedly connected to the side wall of the mounting box (205). The fixed clamping plates (206) are located on the side of the mounting box (205) away from the lever (304). A stepper motor (207) is fixedly connected to the front side of the mounting box (205). The output end of the stepper motor (207) is connected to a lead screw (208) through a coupling. The lead screw (208) is rotatably connected between the inner walls of the mounting box (205). Several sliders (209) are threadedly connected to the lead screw (208). Movable clamping plates (210) are fixedly connected to the side walls of the sliders (209). The movable clamping plates (210) are used in pairs with the fixed clamping plates (206).

5. The doffing device for a spinning frame according to claim 4, characterized in that: The side wall of the mounting box (205) is provided with a movable cavity, and the movable clamp (210) slides in the movable cavity.

6. A doffing device for a spinning frame according to claim 4, characterized in that: The fixed clamping plate (206) and the movable clamping plate (210) have arc-shaped grooves on their sides that are close to each other.

7. A doffing device for a spinning frame according to claim 2, characterized in that: Limiting blocks are provided at both ends of the electric slide rail (202).

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