Chemical fiber disc transfer device and application method thereof

Abstract

The application provides a chemical fiber disc transfer device, which comprises a moving base plate, a base plate supported by a lifting mechanism on the moving base plate, a main screw rod fixedly extended upward at the center of the base plate, a cylindrical mounting rack through which the main screw rod passes and which is threadedly connected with the shaft hole of the mounting rack, a supporting spring connected between the bottom of the mounting rack and the base plate, and one or more mounting rods uniformly distributed on the mounting rack. The chemical fiber disc transfer device can automatically displace the chemical fiber discs to positions close to the worker's body during the process of the worker picking up the chemical fiber discs, so as to improve the efficiency and safety of the chemical fiber disc unloading process.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of workshop transportation equipment, in particular, to a chemical fiber disc transfer device for transferring chemical fiber discs to a shelf area. BACKGROUND

[0002] In the production process of chemical fiber, it is usually necessary to transfer the chemical fiber disc prepared on the machine tool to the shelf area, and the chemical fiber disc hung on the transfer device is placed on the shelf one by one by manual picking. In this process, since the height of the upper part of the shelf is high, the warehouse personnel need to use the ladder to place the chemical fiber disc on the upper part of the shelf. The conventional chemical fiber disc transfer device can only realize the lifting of the chemical fiber disc hanging frame in the vertical direction, and the horizontal position of each chemical fiber disc hung at the same height is fixed and cannot be automatically displaced to the side close to the worker during picking. Therefore, for the worker standing on the ladder and having difficulty in moving, it is very inconvenient and even unsafe to pick the chemical fiber disc hung on the hanging frame far away from the body. There is no technical solution to solve this problem in the prior art. Referring to CN2021233783328, the inventor previously disclosed a chemical fiber disc loading and unloading device, which comprises an electric forklift, a box body arranged on the electric forklift for loading, and a conveying device installed in the box body. The electric forklift comprises a vehicle body, a hand push handle rotatably arranged on the vehicle body, a forklift motor, a fork jaw, and a motor for controlling the lifting of the fork jaw. The box body comprises a box body shell arranged on the vehicle body, a load-bearing rod arranged inside the box body for carrying the chemical fiber disc, and a control device arranged outside the box body for controlling the conveying. However, the device uses a driving mechanism, and a large space is required after the marking disc is pushed out, which is not conducive to the use in the production workshop. SUMMARY

[0003] The purpose of the present application is to provide a chemical fiber disc transfer device which can automatically displace each chemical fiber disc to a position close to the worker's body during the process of picking the chemical fiber disc by the worker, so as to improve the efficiency and safety of the chemical fiber disc unloading process.

[0004] The technical solution adopted by the present application to solve the technical problem is that the chemical fiber disc transfer device comprises a moving base plate, a lifting mechanism is arranged on the moving base plate to support a base plate; a main screw rod is fixedly extended upward at the center of the base plate; the main screw rod passes through a cylindrical hanging frame, and the main screw rod is threadedly connected with the shaft hole of the hanging frame; the bottom of the hanging frame is connected with the base plate by a supporting spring; and one or more than one layer of hanging rods is uniformly distributed on the circumference of the hanging frame.

[0005] As preferred, the lifting mechanism comprises lifting cylinders vertically supporting the base plate, and a gas source comprising a gas pump and a gas pump controller. Further, the lifting cylinders are four, each of which is distributed symmetrically around the main screw in the circumferential direction, and each of which is internally connected to each other.

[0006] As preferred, the bottom of the moving chassis is equipped with four universal wheels to adapt to various winding paths in the workshop.

[0007] As preferred, one side of the moving chassis is provided with a push-pull handrail so that the operator can hold the handrail and directly push the whole transfer device on the ground.

[0008] As preferred, the moving chassis is further provided with a mechanical arm, which comprises a large arm horizontally rotating driven by a first servo motor, and a small arm longitudinally rotating driven by a second servo motor; the first and second servo motors are controlled by a PLC controller; the free end of the small arm is hung with a taking hook capable of passing through the holes of the chemical fiber disc.

[0009] As preferred, the Hook coefficient k of the supporting spring, and the pitch d of the main screw, and the number n of the hanging rods on the upper layer of the hanging rack satisfy the following relationship: assuming the weight of a single chemical fiber disc is g, then g / k=d / n; further, the height difference h of each layer of the hanging rods on the hanging rack satisfies the following relationship: h=d, so that after the chemical fiber disc on the upper layer of the hanging rod is taken, the lower layer of the hanging rod rises to the height previously occupied by the upper layer of the hanging rod.

[0010] The beneficial effects of the present application are that during the unloading process, the unloading worker on the escalator takes one chemical fiber disc from the upper layer of the hanging rod, the overall weight of the hanging rack decreases by a fixed amount, the supporting spring pushes the hanging rack to pop up a distance, so that the hanging rack rotates an angle under the constraint of the main screw, so that the chemical fiber disc far away from the worker is automatically transferred to the vicinity of the worker, which is convenient for the worker to pick up. BRIEF DESCRIPTION OF DRAWINGS

[0011] Figure 1 is a lateral view of the first embodiment of the chemical fiber disc transfer device (the chemical fiber disc is not shown).

[0012] Figure 2 is a top view of the first embodiment of the chemical fiber disc transfer device (the mechanical arm is not shown).

[0013] The components include: chassis-1, base plate-2, lifting cylinder-3, main screw-4, hanger-5, support spring-6, PLC controller-7, chemical fiber tray-8, caster wheel-10, chassis side wall-11, handrail-12, base-13, air pump-30, connecting air duct-31, limit block-41, hanger rod-51, upper arm-141, lower arm-142, and lifting hook-143. Detailed Implementation

[0014] The present invention will be further described below with reference to the accompanying drawings and embodiments:

[0015] Example 1:

[0016] exist Figure 1 , Figure 2 In the illustrated embodiment, the fiber tray transfer device includes a movable chassis 1, on which a base plate 2 is supported by a lifting mechanism. The lifting mechanism includes four lifting cylinders 3 interconnected at their bottoms via connecting air passages 31. Each lifting cylinder 3 is charged and depressed by a common air pump 30 to control its lifting and lowering, thus raising the base plate 2 to the height required for the specific working condition. The controller for the air pump 30 can be of various conventional forms, such as button control or a shift lever control. Button one controls the air pump 30 to rotate forward, pushing the lifting cylinder 3 upward; button two controls the air pump 30 to rotate in reverse, lowering the lifting cylinder 3; or the shift lever can be pushed to the up position to raise the lifting cylinder, and pushed to the down position to lower the lifting cylinder. The specific method of cooperating the air pump and the lifting cylinder, and their installation method, are existing conventional technologies, as long as the above functions are achieved. The specific buttons or shift levers, being existing conventional components and not part of the inventive point of this invention, are not illustrated further.

[0017] A main screw 4 extends upward from the center of the substrate 2, and a limiting block 41 is provided at its upper end; the main screw 4 passes through a cylindrical mounting frame 5, and the main screw 4 is threadedly engaged with the shaft hole 50 of the mounting frame 5; the bottom of the mounting frame 5 is connected to the substrate 2 by a support spring 6; the mounting frame 5 has three layers of mounting rods 51 evenly distributed in the circumferential direction.

[0018] The bottom of the mobile chassis 1 is equipped with four casters 10 to adapt to various winding paths in the workshop. One side of the mobile chassis 1 forms a chassis side wall 11, and a push-pull handrail 12 is provided on the chassis side wall 11 so that the operator can hold the handrail 12 and directly push the entire transfer device to move on the ground.

[0019] In the unloading process, the unloading worker on the escalator takes off one fiber disc 8 from the upper hanging rod 51, the overall weight of the hanging rack 5 decreases by a fixed value, the supporting spring 6 pushes the hanging rack 5 to pop up by a distance, so that the hanging rack 5 rotates by an angle under the constraint of the main screw 4, and the fiber disc far away from the worker is automatically rotated to the worker's vicinity, which is convenient for the worker to pick up.

[0020] In order to make the next fiber disc rotate to the position right in front of the worker after the worker takes off one fiber disc, the parameters of the components should be accurately defined, as follows: the supporting spring with proper Hook coefficient k, the main screw 4 with proper pitch d, and the hanging rod 51 with proper number n. In order to make the next fiber disc rotate to the position of the previous fiber disc after the previous fiber disc is taken off, the hanging rack 5 rotates by 1 / n of a circle after one fiber disc is taken off, so that the hanging rack 5 rises by d / n along the main screw 4. Therefore, when the values of k, d and n are selected, g / k=d / n can meet the requirements. In addition, the fiber disc on the lower hanging rod 51 rises to the height of the previous upper hanging rod 51 after the fiber disc on the upper hanging rod 51 is taken off, which further makes the height difference h of each layer of the hanging rod meet the following relationship: h=d.

[0021] In the first embodiment, the base side wall 11 of the moving base 1 is further fixed with a base 13, and the base 13 is provided with a mechanical arm, which includes a large arm 141 driven by a first servo motor to rotate horizontally, and a small arm 142 driven by a second servo motor to rotate longitudinally. The first servo motor is arranged in the pivot joint between the base 13 and the large arm 141, and the second servo motor is arranged in the pivot joint between the large arm 141 and the small arm 142. The first and second servo motors are controlled by a PLC controller 7 fixed on the base side wall 11. The free end of the small arm 142 is hung with a material hook 143 which can pass through the disc hole of the fiber disc, thereby assisting in carrying the fiber disc with large weight. The specific structure of the mechanical arm is a product of the prior art, and its control method also belongs to the prior art, so it will not be expanded.

[0022] The specific use process of the chemical fiber disc transfer device is that the chemical fiber disc is hung on each hanging rod by the mechanical arm, and then the transfer device is moved to the side of the shelf by the operator holding the push-pull handrail; then, according to the height of the actual shelf, the lifting mechanism is started to lift the hanging rack to a position convenient for the unloading personnel; during the unloading process, when the unloading worker on the escalator takes down a chemical fiber disc from the upper layer of the hanging rod, the overall weight of the hanging rack decreases by a fixed value, so that the supporting spring pushes the hanging rack to pop up a distance, so that the hanging rack turns an angle under the constraint of the main screw rod, so that the chemical fiber disc far away from the worker is automatically transferred to the vicinity of the worker, and thus the chemical fiber disc on the hanging rack can be easily placed on the shelf.

[0023] The above description is only the preferred embodiment of the present application, and is not intended to limit the present application. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A chemical fiber tray transfer device, characterized in that, The system includes a mobile chassis on which a base plate is supported by a lifting mechanism; a main screw extends upward from the center of the base plate; the main screw passes through a cylindrical mounting frame and is threaded into the shaft hole of the mounting frame; the bottom of the mounting frame is connected to the base plate by a support spring; and the mounting frame has one or more mounting rods evenly distributed circumferentially. The Hooke coefficient k of the supporting spring, the pitch d of the main screw, and the number n of each layer of hanging rods on the hanging frame satisfy the following relationship: Let the weight of a single chemical fiber disc be g, then g / k=d / n; The height difference h of each layer of hanging rods on the hanging frame satisfies the following relationship: h=d; When the unloading worker takes a fiber tray from the upper mounting rod and places it on the shelf, the overall weight of the mounting frame decreases by a fixed amount, causing the support spring to push the mounting frame upward a certain distance. This allows the mounting frame to rotate at an angle under the constraint of the main screw, so that fiber trays that are far away from the worker automatically rotate to the worker's vicinity.

2. The chemical fiber tray transfer device according to claim 1, characterized in that, The lifting mechanism includes a lifting cylinder and an air source; the lifting cylinder vertically supports the base plate; the air source includes an air pump and an air pump controller.

3. The chemical fiber tray transfer device according to claim 2, characterized in that, There are four lifting cylinders, each symmetrically distributed circumferentially relative to the main screw, and the interiors of each lifting cylinder are interconnected.

4. The chemical fiber tray transfer device according to claim 1, characterized in that, The bottom of the mobile chassis is equipped with four omnidirectional wheels.

5. The chemical fiber tray transfer device according to claim 1, characterized in that, The mobile chassis is equipped with a push-pull handle on one side.

6. The chemical fiber tray transfer device according to claim 1, characterized in that, The mobile chassis is also equipped with a robotic arm, which includes a large arm that rotates horizontally driven by a first servo motor and a small arm that rotates longitudinally driven by a second servo motor; the first and second servo motors are controlled by a PLC controller; the free end of the small arm is equipped with a hook that can pass through the hole of the chemical fiber tray via a rope.

7. The chemical fiber tray transfer device according to claim 1, characterized in that, The mounting frame has three layers of mounting rods evenly distributed around its circumference.

8. A method for transferring a chemical fiber tray using the chemical fiber tray transfer device according to claim 1, characterized in that, Step 1: The operator uses the push-pull handle to move the fiber tray transfer device according to claim 1, carrying the fiber tray, to the side of the shelf; Step 2: Based on the actual height of the shelf, the lifting mechanism is activated to raise the hanging frame to a position convenient for unloading personnel; Step 3: The unloading worker on the escalator takes a fiber tray from the upper hanging rod and places it on the shelf. The overall weight of the hanging frame decreases by a fixed amount, causing the support spring to push the hanging frame upward a certain distance. This allows the hanging frame to rotate an angle under the constraint of the main screw, so that fiber trays farther away from the worker automatically rotate to the worker's vicinity; Step 4: Repeat Step 3 until all fiber trays on the hanging frame are placed on the shelf, and the entire transfer process is completed.

9. The application of the chemical fiber tray transfer device according to claim 1 in the transfer of chemical fiber trays.

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