A spring compression conveying device

Abstract

The present invention discloses a spring compression and conveying device, which includes a clamping and conveying mechanism, a compression plate and a crank. Two compression plates are arranged opposite to each other. More than two cranks are hinged on each compression plate. The cranks perform periodic trajectory movements to drive the compression plates to perform cyclic movements. The included angle between the two compression plates remains unchanged. The cranks on the two compression plates have opposite rotation directions. The two compression plates compress and convey the spring to the clamping and conveying mechanism, and the conveying mechanism clamps and outputs the compressed spring. The present invention adopts a crank-link mechanism, and during the compression and conveying process, the included angle between the two compression plates can remain unchanged, thereby ensuring that the compression angle of the spring remains unchanged and avoiding the spring from slipping out due to the change of the compression angle of the compression plate. Secondly, the crank moves continuously and can be periodically reset after the spring is input into the clamping and conveying mechanism, and the spring can be continuously conveyed without waiting for the compression plate to be fully opened. In this way, the production efficiency can be improved.

Description

Technical Field

[0001] The present invention relates to the technical field of bagged spring production equipment, and particularly to a spring compression and conveying device. Background Art

[0002] A spring bagging machine is a commonly used bagged spring production machine.

[0003] In a common spring bagging machine, before the spring is sent into a cloth bag formed by non-woven fabric, the spring needs to be compressed and then conveyed. At this time, a spring compression and conveying device is required.

[0004] There are two existing spring compression and conveying devices. The first one is to set baffles with gradually decreasing openings at the inlet end of the clamping and conveying mechanism, and a ring-shaped conveying mechanism with suction cups is arranged above the clamping and conveying mechanism and the baffles. The ring-shaped conveying mechanism sends the spring along the baffles into the clamping and conveying mechanism, so as to complete the compression of the spring during the conveying process. However, in this way, it is very easy for the spring to detach from the suction cup in advance during the conveying process, resulting in the situation that the spring cannot be compressed and conveyed. To solve this problem, another compression and conveying device sets a second group of second clamping and conveying mechanisms that can be opened and closed at the inlet end of the clamping and conveying mechanism. When the spring enters the second clamping and conveying mechanism, the second clamping and conveying mechanism closes to compress the spring, and then the second conveying mechanism sends the spring to the clamping and conveying mechanism. However, this structure needs to wait for the second conveying mechanism to reopen after each conveying before the spring can be conveyed continuously, and its efficiency is low and it cannot achieve cyclic reciprocation.

[0005] The existing compression and conveying mechanisms cannot solve these problems. Therefore, the present application proposes a new compression and conveying device. Summary of the Invention

[0006] Aiming at the deficiencies of the prior art, the present invention aims to provide a spring compression and conveying device.

[0007] To achieve the above object, the present invention adopts the following technical solutions:

[0008] A spring compression and conveying device includes a clamping and conveying mechanism, a compression plate, and a crank. The two compression plates are arranged oppositely, and two or more cranks are hinged on each compression plate. The crank makes a periodic trajectory movement to drive the compression plate to make a cyclic movement. The included angle between the two compression plates remains unchanged, and the cranks on the two compression plates rotate in opposite directions. The two compression plates compress and convey the spring into the clamping and conveying mechanism, and then the two compression plates move away from each other to release the spring, and the conveying mechanism clamps and outputs the compressed spring.

[0009] Further, the clamping and conveying mechanism is composed of two relatively arranged conveying chains / conveyor belts, and at least one of the two conveyor belts / conveying chains can displace relative to the other.

[0010] Furthermore, at least one of the two compression plates can move relatively closer to or farther away from the other.

[0011] Furthermore, the minimum distance between the two compression plates is less than or equal to the distance between the two conveyor belts / conveyor chains of the clamping and conveying mechanism.

[0012] Furthermore, the two compression plates are parallel to each other.

[0013] The present invention has the following beneficial effects:

[0014] A spring compression and conveying device of the present invention adopts a crank and connecting rod mechanism. During the compression and conveying process, the two compression plates can keep the included angle unchanged, so as to ensure that the compression angle of the spring remains unchanged, and avoid the spring from coming out due to the change of the compression angle of the compression plate. Secondly, the crank moves continuously and can be periodically reset after the spring is input into the clamping and conveying mechanism, and the spring can be continuously conveyed without waiting for the compression plate to be fully opened. In this way, the production efficiency can be improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 is a schematic diagram of the principle of a spring compression and conveying device of the present invention;

[0016] Figure 2 is a top view of a spring compression and conveying device of the present invention when the compression plate is in the starting position;

[0017] Figure 3 is a top view of a spring compression and conveying device of the present invention after the compression plate sends the spring into the clamping and conveying mechanism;

[0018] Figure 4 is a top view of a spring compression and conveying device of the present invention after the compression plate sends the spring into the clamping and conveying mechanism and the compression plate is reset. DETAILED DESCRIPTION OF THE INVENTION

[0019] The following is a further description of the present invention in conjunction with the drawings and specific embodiments, so as to more clearly understand the technical idea claimed by the present invention.

[0020] As Figures 1 to 4 shown, a spring compression and conveying device of the present invention includes a clamping and conveying mechanism 1, a compression plate 2 and a crank 3. The two compression plates 2 are arranged oppositely. More than two cranks 3 are hinged on each compression plate 2. The crank 3 makes a periodic trajectory movement to drive the compression plate 2 to make a cyclic movement. The two compression plates 2 keep the included angle unchanged. The cranks on the two compression plates have opposite rotation directions. The two compression plates 2 compress and convey the spring 3 into the clamping and conveying mechanism, and the clamping and conveying mechanism 1 clamps and outputs the compressed spring.

[0021] It should be noted that in this embodiment, the number of the cranks 3 is two. The two cranks 3 and the compression plate 2 form a double-crank linkage mechanism. In this way, the crank 3 makes a circular motion (circular periodic motion), and the compression plate 2 makes a cyclic motion (moves along the rotation of the crank 3) when the crank 3 makes a circular motion, and the included angle between the two compression plates 2 remains unchanged.

[0022] When the present invention is in use, first, the two compression plates 2 are at the starting point (as Figure 2 shown), and then the crank 3 rotates, driving the two compression plates 2 to move along an arc, so that the two compression plates 2 clamp the spring and move it into the clamping and conveying mechanism 1 until a part of the spring clamped by the two compression plates 2 extends into the clamping and conveying mechanism 1 (as Figure 3 shown), and then the crank 3 continues to rotate until it rotates one circle, so that the compression plate 2 releases the spring and resets (as Figure 4 shown). At this time, both ends of the spring are stuck in the clamping and conveying mechanism 1 and separated from the compression plate 2, and the clamping and conveying mechanism 1 outputs the spring while keeping it compressed.

[0023] It should be noted that the rotation of the crank 3 causes the compression plate 2 to release the spring and reset, specifically: the crank 3 continues to rotate in the same direction, so that the compression plate 2 moves parallel to the arc of the crank 3 (specifically referring to the double-crank linkage mechanism with equal-length cranks 3). During the continuous movement, the two compression plates will move from clamping to opening (that is, from relatively close to relatively far apart), until after the crank 3 rotates one circle, the compression plates will move from relatively close and move towards the clamping and conveying mechanism 1 to relatively far apart and away from the clamping and conveying mechanism 1, thus completing the reset.

[0024] The advantages of the present invention are as follows: 1. The crank-linkage mechanism is adopted, and during the compression and conveying process, the included angle between the two compression plates 2 can remain unchanged, so as to ensure that the compression angle of the spring remains unchanged, and avoid the spring from coming out due to the change of the compression angle of the compression plate 2; 2. The crank 3 moves continuously, and can be periodically reset after the spring is input into the clamping and conveying mechanism 2, and the spring can be continuously conveyed without waiting for the compression plate 2 to be completely opened, so that the production efficiency can be improved.

[0025] Furthermore, the clamping and conveying mechanism 1 is composed of two relatively arranged conveying chains / conveyor belts, and at least one of the two conveyor belts / conveying chains can displace relative to the other.

[0026] More specifically, the distance between the two conveying chains / conveyor belts of the clamping and conveying mechanism 1 is adjustable, so as to adapt to springs of different sizes.

[0027] Furthermore, at least one of the two compression plates 2 can move relatively closer or farther away from the other.

[0028] Specifically, the minimum distance between the two compression plates 2 is adjustable, which is conducive to adjusting the compression amount of the compression plates 2 on the springs to adapt to springs of different heights.

[0029] Further, the minimum distance between the two compression plates 2 is less than or equal to the distance between the two conveyor belts / conveyor chains of the clamping and conveying mechanism 1.

[0030] More specifically, the minimum distance between the compression plates 2 is less than or equal to the distance between the two conveyor belts / conveyor chains of the clamping and conveying mechanism 1, so as to ensure that the compression plates 2 can send the springs into the clamping and conveying mechanism 1 and avoid being unable to send the springs into the clamping and conveying mechanism 1 due to insufficient compression.

[0031] Further, the two compression plates 2 are parallel to each other.

[0032] More preferably, the compression plates 2 are parallel to each other, which can ensure that the forces on both sides of the spring are parallel during compression and avoid the spring coming out to the greatest extent.

[0033] It should be noted that the compression plates 2 should also be provided with structures for avoiding the clamping and conveying mechanism 1, such as through grooves, aisles, etc., or the clamping and conveying mechanism 1 is provided with structures for avoiding the compression plates 2, such as voids in the middle of a multi-layer structure. This belongs to common avoidance structures and will not be elaborated here. It only needs to ensure that the cyclic movement of the compression plates 2 will not be affected by the clamping and conveying mechanism 1.

[0034] For those skilled in the art, various corresponding changes and deformations can be made according to the above-described technical solution and concept of 888. All these changes and deformations should fall within the protection scope of the claims of the present invention.

Claims

1. A spring compression conveying device, characterized in that: It includes a clamping and conveying mechanism, compression plates and cranks. The two compression plates are arranged oppositely. More than two cranks are hinged on each compression plate. The cranks perform periodic trajectory movements to drive the compression plates to perform cyclic movements. The included angle between the two compression plates remains unchanged. The cranks on the two compression plates rotate in opposite directions. The two compression plates compress and convey the springs into the clamping and conveying mechanism, and then the two compression plates move away from each other to release the springs. The conveying mechanism clamps and outputs the compressed springs.

2. A spring compression conveying device according to claim 1, characterized in that: The clamping and conveying mechanism is composed of two oppositely arranged conveyor chains / conveyor belts, and at least one of the two conveyor belts / conveyor chains can displace relative to the other.

3. A spring compression conveying device according to claim 1, characterized in that: At least one of the two compression plates can move relatively closer to or away from the other.

4. A spring compression conveying device according to claim 2, characterized in that: The minimum distance between the two compression plates is less than or equal to the distance between the two conveyor belts / conveyor chains of the clamping and conveying mechanism.

5. A spring compression conveying device according to claim 1, characterized in that: The two compression plates are parallel to each other.

Images