A screw laying device

Abstract

The utility model discloses be applied to screw manufacturing field's a screw spreading device, and vibration device is installed on the moving trolley, and the lower end hinge connection trolley of rotary frame, and the upper end fixed push rod, and the middle part hinge connection tilting cylinder. The rear end hinge connection trolley of swing frame, and the front end is supported by push rod. The recess is set up to the upper surface of spreading frame, and the intermediate position of lower surface installs vibration motor, and four corner parts install spring, and spring cooperates with the sleeve pipe of fixed swing frame. The swing lever of chain conveying device is set up at both sides of vibration device, and chain and sprocket are set up on swing lever, and chain moves on the upper surface of swing lever, and chain transmission shaft is set up at the rear end of swing lever, and provides power for chain transmission, and the middle part hinge connection swing lever of jacking cylinder can drive swing lever rotate around this chain transmission shaft. The utility model discloses simple structure, and the action is few, and the production cost is low, and the floor area is small, and the efficiency of spreading is high.

Description

Technical Field

[0001] This utility model is applied to the field of lead screw manufacturing, and relates to the production process before lead screw packaging, which involves laying the lead screw bundles into a single layer, specifically a lead screw laying device. Background Technology

[0002] The production process of lead screws includes material drawing, length cutting, thread machining, heat treatment, galvanizing, and packaging. Production before packaging is mostly mechanized, while final packaging relies heavily on manual labor due to the complexity of counting and movements. During transfer between processes, lead screws are usually transported in bundles. Before packaging, the bundles need to be unfolded, and each screw needs to be counted individually. This non-value-adding process is labor-intensive and frequently results in injuries from bumps and knocks. Especially for thin lead screws, there is the phenomenon of elastic deformation and bending, requiring the cooperation of two people. Therefore, it is necessary to design a device that can unfold the bundles of lead screws and automatically count them.

[0003] The search did not find any patent applications specifically for lead screw laying. Utility Model Content

[0004] The technical problem solved by this utility model is to provide a lead screw spreading device that uses the principle of vibration and sliding to spread the lead screw, and then uses the planar transmission of the chain to realize the spreading and transportation of the lead screw, laying the foundation for automatic counting and packaging.

[0005] The technical solution adopted by this utility model is as follows: The screw-laying device of this utility model includes a moving trolley, a vibration device, and a chain conveying device. The vibration device is installed on the moving trolley and includes a rotating frame, a swing frame, a laying frame, springs, and a vibration motor; the lower end of the rotating frame is hinged to the trolley, the upper end is fixed with a push rod, the middle part is hinged to a tilting cylinder, and the lower end of the tilting cylinder is hinged to the trolley. The rear end of the swing frame is hinged to a fixed support on the trolley via a rotating shaft, and the front end is supported by a push rod. The upper surface of the laying frame is provided with a groove, the middle position of the lower surface is equipped with a vibration motor, and springs are installed at the four corners. The springs cooperate with the sleeves fixed on the swing frame. The chain conveying device includes a swing rod, a chain, a chain drive shaft, and a lifting cylinder; two swing rods are arranged on both sides of the vibration device, and sprockets that cooperate with the chain are installed at the front and rear ends of the swing rods. The chain moves on the upper surface of the swing rod to ensure planar support of the chain; the chain drive shaft is arranged at the rear end of the swing rod to provide power for the chain drive, and the swing rod can rotate around the chain drive shaft. The lifting cylinder is hinged to the middle of the swing rod.

[0006] Furthermore, to achieve stable transmission of the lead screw on the chain, tripods are fixedly installed on the chain. The distance between the tripods corresponds to the distance between the grooves, and is not less than the product of the number of lead screws remaining in the grooves and the diameter of the lead screws.

[0007] Furthermore, elongated through holes are machined at the front of the main beams on both sides of the swing frame, and these elongated through holes mate with the push rod. Alternatively, rollers are installed on the push rod, and the rollers limit and support the swing frame.

[0008] Furthermore, the mobile trolley includes a trolley and a moving cylinder. The small wheels of the trolley cooperate with the track, and one end of the moving cylinder is fixed to the ground, while the other end is fixedly connected to the trolley.

[0009] The beneficial effects of this utility model are: the utility model has a simple structure, fewer actions, and low manufacturing cost. It not only solves the problem of labor intensity, but also occupies a small area and has high deployment efficiency, laying the foundation for automated packaging. Attached Figure Description

[0010] Figure 1 This is a schematic front view of the structure of this utility model; Figure 2 This is a top view of the structure of this utility model; Figure 3 This is a schematic diagram of the working process of this utility model. Attached reference numerals: 1-Trolley, 2-Moving cylinder, 3-Tilting cylinder, 4-Rotating frame, 5-Swing rod, 6-Sprocket, 7-Swinging frame, 8-Spring, 9-Laying frame, 10-Chain, 11-Bumper, 12-Vibration motor, 13-Chain drive shaft, 14-Lifting cylinder, 15-Rotating shaft, 16-Push rod. Detailed Implementation

[0011] The following "upper and lower" refers to the attached Figure 1 The relative relationship between the upper and lower parts, the "before and after" below refers to the attached Figure 1 In the left and right directions, the lead screw is self-adhesive. Figure 1 The device moves from left to right. To keep the diagram as simple as possible, only the structural components of the device are shown; steel plates, reinforcing ribs, etc., are not illustrated.

[0012] The structure of this utility model screw laying device is shown in the attached figure. Figure 1 and attached Figure 2 As shown, it includes a mobile trolley, a vibration device, and a chain conveyor. The vibration device is installed on the mobile trolley and receives vibration after the lead screw is bundled. With the assistance of the chain conveyor, it is gradually vibrated and spread out. The chain conveyor then transports the spread single layer of lead screw to the packaging station.

[0013] The mobile trolley includes a trolley 1 and a moving cylinder 2. The small wheels of the trolley 1 cooperate with the track on the ground. One end of the moving cylinder 2 is fixed to the ground, and the other end is fixedly connected to the trolley 1. The extension and retraction of the cylinder rod can drive the trolley to move back and forth on the track.

[0014] The vibration device includes a rotating frame 4, a swing frame 7, a spreading frame 9, springs 8, and a vibration motor 12. The lower end of the rotating frame 4 is hinged to the trolley 1, the upper end is fixedly connected to a push rod 16, and the middle part is hinged to the cylinder rod of the tilting cylinder 3. The lower end of the tilting cylinder 3 is hinged to the trolley 1. The rear end of the swing frame 7 is hinged to a fixed support on the trolley via a rotating shaft 15. Long strip-shaped through holes are machined on the front part of the main beams on both sides of the swing frame 7. These long strip-shaped through holes cooperate with the push rod 16, allowing the push rod 16 to slide freely within the long strip-shaped through holes. The upper surface of the spreading frame 9 is provided with grooves. The vibration motor 12 is installed in the middle position of the lower surface of the spreading frame 9, and springs 8 are installed at the four corners. The springs 8 are positioned and constrained by sleeves, which are fixedly installed at the four corners of the swing frame 7.

[0015] The chain transmission device includes swing arms 5, a chain 10, a chain drive shaft 13, and a lifting cylinder 14. Two swing arms 5 are positioned on either side of the vibration device. Sprockets 6 are installed at the front and rear ends of the swing arms 5, and the chain 10 engages with the sprockets 6 for transmission. The chain drive shaft 13 is located at the rear end of the swing arms 5, providing power for the chain drive. The chain 10 moves on the upper surface of the swing arms 5 to ensure chain transmission on a single plane. A tripod 11 is fixedly installed on the chain 10. The lifting cylinder 14 is hinged to the middle of the swing arms 5, and the extension and retraction of its cylinder rod allows the swing arms 5 to rotate around the chain drive shaft 13. The front end of the swing arms 5 is lower than the laying frame 9.

[0016] This utility model utilizes the action of spreading the lead screw as shown in the attached figure. Figure 3 As shown, the spread-out frame 9 is attached Figure 1 Under the push of the moving cylinder 2, the trolley moves forward to the receiving station to receive the lead screw bundle, and then moves back to its original position. The cylinder rod of the tilting cylinder 3 extends to push the rotating frame 4 to rotate on the trolley, as shown in the attached diagram. Figure 3 As shown, the push rod 16 at the upper end of the rotating frame 4 slides in the elongated hole of the swing frame 7, causing the swing frame 7 to drive the spreading frame 9 and the lead screws on the spreading frame to rotate around the rotating shaft 15 and tilt upwards. At the same time, the lifting cylinder 14 is activated, causing the swing rod 5 to rotate to support the lead screw bundle below. Then the vibration motor 12 is activated, and the spreading frame 9 vibrates under the action of the spring 8 and the vibration motor 12. At the same time, the swing rod 5 is slowly rotated downwards. The lead screws on the spreading frame 9 gradually fall into the various grooves as the swing rod 5 rotates downwards and vibrates, with several lead screws staying in each groove. After the entire bundle of lead screws is laid out and the lead screws enter the groove, the chain drive shaft 13 is activated to drive the chain drive. At the same time, the lifting cylinder 14 quickly lifts the upper rotating swing rod 5, and the tilting cylinder 3 quickly retracts, causing the laying frame 9 to fall. The lead screws in the groove fall onto the chain on the swing rod. The tripping head 11 on the chain will drive the lead screws to move on the chain. At the same time, the stacked lead screws on the chain gradually roll into a single layer under the action of gravity and elastic deformation force. They enter the packaging transmission track one by one with the chain drive, completing the operation of laying out a bundle of lead screws.

[0017] The distance between the tripods corresponds to the distance between the grooves, and is not less than the product of the number of lead screws remaining in the groove and the diameter of the lead screws.

[0018] To reduce the sliding friction of the push rod 16, rollers can be installed on the push rod to limit and support the swing frame 7, instead of using the push rod and the elongated hole.

[0019] This invention utilizes a swing arm to support the lead screw as it vibrates and slowly descends, overcoming the inertia of the falling lead screw and placing it relatively still within the groove, preparing it for subsequent single-layer arrangement on the chain. The tripod serves to tilt and move the lead screw upwards, preventing it from rolling down due to low friction at point contact, thus achieving stable transmission of the lead screw on the chain. If the tilt angle of the swing arm is small, friction can stably transmit the lead screw, and the tripod may not be necessary.

[0020] This utility model has a simple structure, few movements, and low manufacturing cost. Compared with manual spreading, it not only solves the problem of labor intensity, but also occupies a small area and has high spreading efficiency, laying the foundation for automated packaging and becoming a key piece of equipment connecting upstream and downstream production lines in the packaging workshop.

Claims

1. A lead screw laying device, characterized in that: The device includes a mobile trolley, a vibration device, and a chain conveyor. The vibration device is mounted on the mobile trolley and includes a rotating frame (4), a swing frame (7), a spreading frame (9), a spring (8), and a vibration motor (12). The lower end of the rotating frame (4) is hinged to the trolley, the upper end is fixed with a push rod (16), and the middle part is hinged to a tilting cylinder (3). The lower end of the tilting cylinder (3) is hinged to the trolley. The rear end of the swing frame (7) is hinged to a fixed support on the trolley via a rotating shaft (15), and the front end is supported by the push rod (16). The upper surface of the spreading frame (9) is provided with a groove, the middle position of the lower surface is equipped with a vibration motor (12), and the four corners are equipped with springs (8). The springs (8) cooperate with the sleeves fixed on the swing frame (7). The chain transmission device includes a swing rod (5), a chain (10), a chain drive shaft (13), and a lifting cylinder (14); two swing rods (5) are arranged on both sides of the vibration device, and sprockets that cooperate with the chain (10) are installed at the front and rear ends of the swing rods (5). The chain (10) moves on the upper surface of the swing rods (5). The chain drive shaft (13) is arranged at the rear end of the swing rods (5) to provide power for the chain drive. The swing rods (5) can rotate around the chain drive shaft (13). The lifting cylinder (14) is hinged to the middle part of the swing rods (5).

2. The lead screw spreading device according to claim 1, characterized in that: A tripod (11) is fixedly installed on the chain (10).

3. The lead screw spreading device according to claim 2, characterized in that: The distance between the tripods (11) corresponds to the distance between the grooves, and is not less than the product of the number of lead screws remaining in the grooves and the diameter of the lead screws.

4. The lead screw spreading device according to claim 1, characterized in that: The front of the main beams on both sides of the swing frame (7) is machined with long strip-shaped through holes, which are matched with the push rod (16).

5. The lead screw spreading device according to claim 1, characterized in that: Rollers are installed on the push rod (16), and the rollers limit and support the swing frame (7).

6. The lead screw spreading device according to claim 1, characterized in that: The mobile trolley includes a trolley and a moving cylinder. The small wheels of the trolley cooperate with the track. One end of the moving cylinder is fixed to the ground, and the other end is fixedly connected to the trolley.

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