Working head of lead sealing device and lead sealing device using the working head

Abstract

The present invention relates to a working head of a lead sealing device and a lead sealing device using the working head. The working head of the lead sealing device includes a working head body and a suction nozzle, and also includes a pressing sleeve coaxially sleeved on the suction nozzle, the pressing sleeve is fixedly connected to the working head body and has a pressing end for pressing the lead seal at the front end, and the front end of the suction nozzle is flush with the end face of the pressing end or extends out of the end face of the pressing end by a set length. In this way, the lead seal is still fixed by suction by the suction nozzle, and the pressing force when pressing the lead seal can be completely borne by the pressing end of the pressing sleeve or borne by the pressing end of the pressing sleeve and the suction nozzle, thereby avoiding or reducing the force on the suction nozzle, which can effectively increase the service life of the suction nozzle, the suction nozzle is not easy to be damaged, and the maintenance frequency is greatly reduced, which is conducive to improving production efficiency and reducing production costs.

Description

Technical Field

[0001] The invention relates to a working head of a lead sealing device and a lead sealing device using the working head. Background Art

[0002] In order to prevent users from dismantling and modifying the energy meter without permission, the energy meter needs to be sealed during production. At present, PC seals are increasingly used. PC seals are carbonate seals, such as Figure 1 , Figure 2 As shown, it is generally a rotating body structure, the rear end is a closed end 91, and the front part is a hollow structure. When in use, it is directly pressed into the lead seal position on the electric energy meter, and has an interference fit with the reserved hole at the lead seal position. It is easy to install and environmentally friendly.

[0003] At present, PC lead seals are generally pressed and installed using an automated production line. The automated production line includes a feeding part and a pressing part. The feeding part includes a vibration plate, a movable block mounting seat with a guide rail, a movable block assembled on the guide rail, and a feeding drive device for driving the movable block to move in a guided manner; the pressing part includes a frame, a transverse guide rail, a vertical guide rail, and a working head. The working head can achieve transverse and vertical movement by relying on the transverse guide rail and the vertical guide rail. The conventional design of the lead sealing operation is: the vibration plate vibrates the lead seal to the lead seal bearing position on the movable block, and the movable block moves left and right along the guide rail under the drive of the cylinder. After moving to a fixed position, the working head of the lead sealing device absorbs the lead seal under the movement of the cylinder, and the lead screw drives the working head and the lead seal to move to the top of the meter lead seal position, and then the cylinder moves to drive the working head downward to press the lead seal downward to complete a lead sealing action. The working head includes a working head body and a suction nozzle arranged on the working head body. The suction nozzle is used to absorb the lead seal during operation. In order to ensure the adsorption effect, the suction nozzle is made of flexible material to better cooperate with the closed end of the lead seal. However, the action of pressing the lead seal into the lead sealing position is also completed by the suction nozzle, so the suction nozzle needs to assume the function of transmitting the force. It is easy to deform and break after working for a long time, and needs to be replaced frequently, affecting production efficiency. When damage occurs, it is also easy to cause unreliable adsorption, affecting product quality and increasing production costs. Summary of the invention

[0004] The purpose of the present invention is to provide a working head of a lead sealing device to solve the problem that the suction nozzle of the working head is easily damaged in the prior art. At the same time, the present invention also provides a lead sealing device using the working head.

[0005] The technical solution adopted by the working head of the pressure lead sealing device in the present invention is: the working head of the pressure lead sealing device includes a working head body and a suction nozzle, and also includes a pressing sleeve coaxially sleeved on the suction nozzle, the pressing sleeve is fixedly connected to the working head body and has a pressing end at the front end for pressing the lead seal, the front end of the suction nozzle is flush with the end surface of the pressing end so that the pressing force is borne by the pressing end of the pressing sleeve, or the front end of the suction nozzle extends out of the end surface of the pressing end so as to bear the pressing force together with the pressing end of the pressing sleeve.

[0006] The outer peripheral surface of the pressing sleeve is a stepped structure with an outer diameter gradually increasing from front to back.

[0007] The front end of the suction nozzle is a frustum-shaped structure with a larger front portion and a smaller rear portion, and the inner wall surface of the front end opening is a conical surface with a larger front portion and a smaller rear portion.

[0008] The pressing sleeve is a steel sleeve.

[0009] The technical solution adopted by the pressure lead sealing device in the present invention is: the pressure lead sealing device includes a moving block for carrying the lead seal and a working head for adsorbing and pressing the lead seal, the working head includes a working head body and a suction nozzle, the working head also includes a pressing sleeve mounted on the suction nozzle, the pressing sleeve is fixedly connected to the working head body and has a pressing end for pressing the lead seal at the front end, the front end of the suction nozzle is flush with the end surface of the pressing end so that the pressing end of the pressing sleeve can bear the pressing force, or the front end of the suction nozzle extends out of the end surface of the pressing end so as to bear the pressing force together with the pressing end of the pressing sleeve.

[0010] The outer peripheral surface of the pressing sleeve is a stepped structure with an outer diameter gradually increasing from front to back.

[0011] The pressing sleeve is a steel sleeve.

[0012] The front end of the suction nozzle is a frustum-shaped structure with a larger front portion and a smaller rear portion, and the inner wall surface of the front end opening is a conical surface with a larger front portion and a smaller rear portion.

[0013] The movable block is provided with a lead seal bearing position for bearing the lead seal, and the lead seal bearing position is provided with a vacuum adsorption hole for adsorbing and fixing the lead seal.

[0014] The present invention adopts the above-mentioned technical scheme, and the working head also includes a pressing sleeve coaxially sleeved on the suction nozzle, the pressing sleeve is fixedly connected to the working head body and has a pressing end at the front end for pressing the lead seal, the front end of the suction nozzle is flush with the end surface of the pressing end so that the pressing force is borne by the pressing end of the pressing sleeve, or the front end of the suction nozzle extends out of the end surface of the pressing end by a certain length so as to bear the pressing force together with the pressing end of the pressing sleeve. In this way, the lead seal is still adsorbed and fixed by the suction nozzle, and correspondingly, the pressing force when pressing the lead seal can be completely borne by the pressing end of the pressing sleeve or borne jointly by the pressing end of the pressing sleeve and the suction nozzle, thereby avoiding or reducing the force on the suction nozzle, which can effectively improve the service life of the suction nozzle, the suction nozzle is not easy to be damaged, and the maintenance frequency is greatly reduced, which is beneficial to improving production efficiency and reducing production costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is the main view of the seal;

[0016] Figure 2 yes Figure 1 Side view of

[0017] Figure 3 It is a structural schematic diagram of a feeding part in one embodiment of a medium-pressure lead sealing device of the present invention;

[0018] Figure 4 It is a structural schematic diagram of a press-fitting part in one embodiment of a medium-pressure lead sealing device of the present invention;

[0019] Figure 5 yes Figure 4 The structural diagram of the working head in FIG.

[0020] Figure 6 yes Figure 2 Schematic diagram of the structure of the moving block in;

[0021] Figure 7 This is a schematic diagram of the installation position of the photosensitive sensor;

[0022] Figure 8 yes Figure 7 Top view of the .

[0023] The names corresponding to the figure marks in the figure are: 1-vibration plate, 2-moving block, 3-working head, 4-suction nozzle, 5-pressing sleeve, 6-lead seal bearing position, 7-vacuum adsorption hole, 8-vacuum joint mounting hole, 9-vacuum channel, 10-moving block mounting seat, 11-sensor bracket, 111-fixed part, 112-connecting part, 113-insertion part, 12-photosensitive sensor, 13-lead seal, 14-fixing nut, 91-closed end. DETAILED DESCRIPTION

[0024] An embodiment of the medium pressure lead sealing device of the present invention is as follows Figure 3~Figure 8 As shown, it includes a feeding part and a pressing part. The feeding part includes a vibrating plate 1, a moving block mounting seat 10, a moving block 2 guided and assembled on the moving block mounting seat 10, and a feeding driving device for driving the moving block 2 to move. The pressing part includes a frame, a transverse guide rail, a vertical guide rail and a working head 3, and the working head 3 can realize transverse movement and vertical movement by means of the transverse guide rail and the vertical guide rail.

[0025] The working head 3 includes a working head body, a suction nozzle 4 and a pressing sleeve 5 coaxially sleeved on the suction nozzle 4. The pressing sleeve 5 is a stepped steel sleeve, and the outer diameter gradually increases in two steps from front to back, and the rear end is fixed on the working head body. The pressing sleeve 5 adopts a stepped structure to reduce the space required for movement, avoid interference, and ensure overall rigidity. The front end of the suction nozzle 4 extends out of the end face of the top pressing end of the pressing sleeve 5, and the extended length is determined according to the deformation of the suction nozzle 4 during adsorption. Preferably, the length is equal to the shortening of the suction nozzle 4 during adsorption, so as to minimize the force on the suction nozzle 4 while ensuring firm adsorption. The front end of the suction nozzle 4 is a conical structure with a larger front and a smaller back. The inner wall surface of the front end opening is a conical surface with a larger front and a smaller back. This structure is conducive to the deformation of the suction nozzle 4 during adsorption so as to better fit the lead seal and ensure the firmness of adsorption.

[0026] The moving block 2 is provided with a lead seal bearing position 6, which is formed by a notch groove set at the edge of the moving block 2, and the notch groove includes a notch set toward the vibration plate and a side positioning wall for positioning the lead seal in the horizontal direction. In order to prevent the lead seal from shifting when the moving block 2 moves, so that the lead seal sucked by the suction nozzle 4 cannot be accurately pressed on the lead seal position, a vacuum adsorption hole 7 for adsorbing the lead seal is provided on the side positioning wall, and a vacuum joint mounting hole 8 and a vacuum channel 9 connected between the vacuum joint mounting hole 8 and the vacuum adsorption hole 7 are provided on the moving block 2. The vacuum air source is connected to the vacuum joint mounting hole 8 through an air pipe and a joint.

[0027] A sensor bracket 11 is fixed on the moving block mounting seat 10. The sensor bracket 11 includes a fixed portion 111 fixedly connected to the moving block mounting seat, an inserting portion 113 provided with a sensor inserting hole, and a connecting portion 112 connected between the fixed portion 111 and the inserting portion 113. The fixed portion 113 and the connecting portion 112 are arranged on the side of the lead seal bearing position 6. The inserting portion 113 is cantilevered above the lead seal bearing position to avoid the gap on the lead seal bearing position 6 for the lead seal to enter from the side, thereby ensuring that the lead seal enters the lead seal bearing position from the vibration disk 1 normally. The corresponding photosensitive sensor 12 is inserted into the sensor inserting hole. The outer periphery of the photosensitive sensor 12 is provided with an external thread and can be fixed to the sensor bracket 11 by a fixing nut 14, so as to facilitate the adjustment of the distance between the probe of the photosensitive sensor 12 and the lead seal. Figure 7As shown, the photosensitive sensor 12 is tilted above the moving block 2, and its probe faces the seal bearing position 6. The tilted setting can avoid blocking of light and improve detection accuracy.

[0028] When working, there will be a difference in brightness of the reflected light at the lead seal bearing position when the lead seal is in place and when it is not in place. The photosensitive sensor 12 can detect the difference in brightness and output a corresponding electrical signal to sense whether the lead seal is in place. If it is detected that the lead seal is not in place, the pressing part will not move, effectively avoiding the failure to press the lead seal correctly due to the lead seal not being in place. The hardware cost of the device is only a few dozen yuan, which is low in cost. Compared with the prior art method of using CCD detection after the lead seal is pressed, the cost can be greatly reduced.

[0029] When in use, the lead seal is placed on the moving block 2 by the vibration plate 1 and fixed by the vacuum adsorption hole 7 to ensure the positioning of the lead seal; if the photosensitive sensor 12 detects that the lead seal is in place, the moving block 2 moves, driving the lead seal to move from the bottom of the photosensitive sensor 12 to the set position so that the working head 3 can absorb the lead seal; after the moving block 2 moves into place, the working head 3 descends to absorb the lead seal and move it to the lead sealing position. During the pressing process, the top pressing end of the pressing sleeve 5 can apply pressure to the lead seal, thereby effectively reducing or avoiding the force on the suction nozzle 4 and increasing the service life of the suction nozzle 4.

[0030] Embodiment 2 of the medium pressure lead sealing device of the present invention: Different from embodiment 1, a distance sensor is fixed on the sensor bracket in this embodiment. The distance between the lead seal and the lead seal bearing position and the probe is different when the lead seal is in place and when it is not in place. By detecting the distance between the probe and the object in front through the distance sensor, it is possible to detect whether the lead seal is in place before pressing.

[0031] An embodiment of a working head of a medium-pressure lead sealing device of the present invention is the working head 3 in the above embodiment, and its specific structure will not be described in detail here.

[0032] In the above embodiment, the front end of the suction nozzle 4 extends out of the end surface of the pressing end, and the pressing sleeve 5 is a stepped structure. In other embodiments of the present invention, the front end of the suction nozzle 4 can also be flush with the end surface of the pressing end, which can also ensure that the lead seal can be adsorbed and the pressing sleeve 5 can transmit the force during the press-fitting. The pressing sleeve 5 can also be in other forms, such as a sleeve structure with a uniform outer diameter.

Claims

1. The lead sealing device includes a feeding part and a pressing part. The feeding part includes a vibration plate, a moving block mounting seat, a moving block mounted on the moving block mounting seat for guiding movement, and a feeding driving device for driving the moving block to guide movement. The pressing part includes a frame, a transverse guide rail, a vertical guide rail and a working head. The working head can realize transverse movement and vertical movement by means of the transverse guide rail and the vertical guide rail. The working head includes a working head body and a suction nozzle. The suction nozzle is made of a flexible material and is characterized in that: It also includes a pressing sleeve coaxially sleeved on the suction nozzle, the pressing sleeve is fixedly connected to the working head body and has a pressing end for pressing a lead seal at the front end, the front end of the suction nozzle is flush with the end surface of the pressing end so that the pressing end of the pressing sleeve can fully bear the pressing force, or the front end of the suction nozzle extends out of the end surface of the pressing end so as to bear the pressing force together with the pressing end of the pressing sleeve; a lead seal bearing position is provided on the moving block, and the lead seal bearing position is formed by a notch groove arranged at the edge of the moving block, and the notch groove includes a notch arranged toward the vibration disk and a notch for pressing the lead seal along the horizontal direction A side positioning wall for positioning is provided on the side positioning wall, and a vacuum adsorption hole for adsorbing lead seals is provided on the moving block, a vacuum joint mounting hole and a vacuum channel connected between the vacuum joint mounting hole and the vacuum adsorption hole are provided on the moving block, and a vacuum air source is connected to the vacuum joint mounting hole through an air pipe and a joint; a sensor bracket is fixed on the moving block mounting seat, and the sensor bracket includes a fixed part fixedly connected to the moving block mounting seat, an inserting part provided with a sensor inserting hole, and a connecting part connected between the fixed part and the inserting part, and a photosensor is inserted in the sensor inserting hole.

2. The lead sealing device according to claim 1, characterized in that: The outer peripheral surface of the pressing sleeve is a stepped structure with an outer diameter gradually increasing from front to back.

3. The lead sealing device according to claim 1 or 2, characterized in that: The front end of the suction nozzle is a frustum-shaped structure with a larger front portion and a smaller rear portion, and the inner wall surface of the front end opening is a conical surface with a larger front portion and a smaller rear portion.

4. The lead sealing device according to claim 1 or 2, characterized in that: The pressing sleeve is a steel sleeve.

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