A satellite vacuum lock continuous feeding and discharging device

Abstract

The present invention relates to a satellite-type vacuum lock continuous feeding and discharging device, which comprises a center roller, a sealing sleeve is coaxially arranged on the center roller, a mechanical sealing structure is arranged between the end faces of the center roller and the sealing sleeve, a chamber for the strip to pass through is formed between the outer surface of the center roller and the sealing sleeve, sealing partition mechanisms are radially spaced on the surface of the sealing sleeve, two adjacent sealing partition mechanisms make the chamber into a closed space, and a vacuum extraction port is arranged on the sealing sleeve between the two adjacent sealing partition mechanisms, and the chamber between the two adjacent sealing partition mechanisms is evacuated into a vacuum state by connecting an external vacuum device. The present invention adopts a continuous feeding and discharging device that solves the arrangement of satellite-type vacuum locks at the same time, so that the volume of the entire device is greatly reduced, the floor space of the equipment is reduced, and maintenance is convenient, and the technical problem of vacuum fluctuation in the vacuum cleaning bin during continuous feeding is solved at the same time.

Description

Technical Field

[0001] The present invention relates to a material feeding and discharging device, in particular to a satellite type vacuum lock continuous material feeding and discharging device, belonging to the technical field of coil material processing and production. Background Art

[0002] Traditional plasma cleaning is done in a closed vacuum chamber. Due to the limitation of the vacuum chamber, the size of the cleaning object is limited, and the object unit can only be cleaned batch by batch, but continuous cleaning cannot be achieved. One of the conditions for continuous cleaning is continuous feeding, and the existence of a continuous feeding channel cannot guarantee the vacuum degree of the cleaning vacuum chamber; in addition, the material is constantly moving during the continuous cleaning process, and the residence time in the vacuum chamber is short, so the cleaning effect cannot be guaranteed. The above two factors limit the application of plasma technology in coil cleaning.

[0003] In order to enable the strip to undergo various continuous processing in a vacuum-sealed chamber, dynamic vacuum sealing of the inlet and outlet is very important. The device used for vacuum sealing of strip inlet and outlet is commonly known as a vacuum lock. The traditional vacuum lock has a complex structure, a long process, and a large volume of equipment, resulting in a large floor space in the production workshop, which increases production costs and makes maintenance difficult. Summary of the invention

[0004] The technical problem to be solved by the present invention is to provide a satellite type vacuum lock continuous feeding and discharging device for the above-mentioned prior art, which simplifies the equipment structure and reduces the floor space of the equipment under the condition of achieving absolute vacuum.

[0005] The technical solution adopted by the present invention to solve the above-mentioned problem is: a satellite-type vacuum lock continuous feeding and discharging device, which includes a center roller that serves as the main power, a sealing sleeve is coaxially arranged on the center roller, a mechanical sealing structure is arranged between the end faces of the center roller and the sealing sleeve, a chamber for the strip to pass through is formed between the outer surface of the center roller and the sealing sleeve, a strip inlet and a strip outlet are respectively opened on the sealing sleeve, and sealing partition mechanisms are radially spaced on the surface of the sealing sleeve, and two adjacent sealing partition mechanisms make the chamber become a closed space, and at the same time, a vacuum extraction port is arranged on the sealing sleeve between the two adjacent sealing partition mechanisms, and the chamber between the two adjacent sealing partition mechanisms is evacuated into a vacuum state by connecting an external vacuum device.

[0006] Preferably, the sealing partition mechanism includes a partition shell and an actuator welded to the surface of a sealing sleeve. The actuator is fixed to the partition shell along the radial direction of the center roller. The actuator is sealed with the partition shell. The output end of the actuator is located inside the partition shell. A partition piece that is pressed against the strip on the surface of the center roller is provided inside the partition shell. The partition piece is connected to the output end of the actuator.

[0007] Preferably, the strip inlet and the strip outlet are respectively arranged on both sides of the center of the center roller, one below and one above, and multiple groups of sealing partition mechanisms are arranged at intervals on both sides of the center roller to form a multi-stage vacuum state.

[0008] Preferably, a discharge channel connected to an adjacent vacuum device is welded at the strip outlet, and a vacuum extraction port is provided on the discharge channel.

[0009] Preferably, the partition member comprises a pressure roller and a pressure roller shell which are coaxially arranged inside and outside the pressure roller, the pressure roller shell is fixedly connected to the actuator, and the pressure roller is pressed against the surface of the strip under the action of the actuator.

[0010] Preferably, the pressure roller is connected to the center roller by synchronous transmission.

[0011] Preferably, the partition member comprises a sliding plate fixedly connected to the actuator, and a sealing pressure plate is fixedly fitted on the front side of the sliding plate, and the sealing pressure plate is pressed tightly against the strip under the action of the actuator.

[0012] Preferably, a sealing gasket is provided on the end surface of the pressure roller shell, and the sealing gasket ensures sealing between the pressure roller shell and the sealing sleeve after the partition piece is pressed down.

[0013] Preferably, a clamping and feeding mechanism is provided at the strip inlet position, and the clamping and feeding mechanism comprises a clamping roller installed at the strip inlet, and clamping cylinders are symmetrically installed at both ends of the clamping roller. The clamping cylinders are used to lift and press down the clamping roller, and a sealing gasket is provided between the clamping roller and the sealing sleeve for sealing.

[0014] Compared with the prior art, the advantages of the present invention are:

[0015] The present invention adopts a continuous feeding and discharging device that solves the problem of satellite vacuum lock arrangement, which greatly reduces the volume of the entire device, reduces the floor space of the equipment, and facilitates maintenance. At the same time, it solves the technical problem of vacuum fluctuation in the vacuum cleaning chamber during continuous feeding. The satellite vacuum lock mode adopted in this application ensures that the strip is in an absolute vacuum state by multi-stage vacuuming, making the processing effect of the strip more ideal. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a cross-sectional view of a satellite type vacuum lock continuous feeding and discharging device according to an embodiment of the present invention;

[0017] Figure 2 It is an axial cross-sectional view of a satellite type vacuum lock continuous feeding and discharging device according to an embodiment of the present invention.

[0018] Figure 3 Schematic diagram of the structure of the rolling sealing partition mechanism in an embodiment of the present invention.

[0019] Figure 4 Schematic diagram of the structure of the sliding sealing partition mechanism in an embodiment of the present invention.

[0020] Figure 5 It is a structural schematic diagram of the transmission connection mode between the pressure roller and the center roller of the rolling sealing partition mechanism in an embodiment of the present invention.

[0021] Figure 6 This is an axial cross-sectional view of a compression feeding mechanism installed at a strip inlet in an embodiment of the present invention.

[0022] Figure 7 for Figure 6 BB cross-sectional view. DETAILED DESCRIPTION

[0023] The present invention is further described in detail below with reference to the accompanying drawings.

[0024] like Figure 1 As shown in Figure 2, a satellite vacuum lock continuous feeding and discharging device in this embodiment includes a center roller 1 that serves as the main power, a sealing sleeve 2 is coaxially arranged on the center roller 1, and a mechanical sealing structure is arranged between the end faces of the center roller 1 and the sealing sleeve 2. The sealing is ensured by means of dynamic and static rings. A chamber for the strip to pass through is formed between the outer surface of the center roller 1 and the sealing sleeve 2. The distance between the two is about 1.5 mm, and the thickness of the strip is about 0.5 mm, so that a 1 mm chamber is formed during the working process of the coil.

[0025] The sealing sleeve 2 is provided with a strip inlet 2.1 and a strip outlet 2.2. At the feeding end, the strip to be processed enters the chamber between the center roller 1 and the sealing sleeve 2 through the guide roller from the strip inlet 2.1, and is then fed into the next process equipment through the strip outlet 2.2; and at the receiving end, the processed strip enters the chamber between the center roller 1 and the sealing sleeve 2 through the strip outlet 2.2, and is wound up after coming out of the strip inlet 2.1. A discharge channel 3 is welded at the strip outlet 2.2, and a vacuum outlet is provided on the discharge channel, which is used as a sealing connection with the next / previous equipment during feeding / receiving, to ensure that the entire processing cycle of the strip is mostly in a vacuum sealed state.

[0026] Due to the existence of the strip inlet 2.1 and the chamber between the center roller 1 and the sealing sleeve 2, the strip will inevitably bring a large amount of air when entering the chamber, which cannot meet the working environment of the ultimate vacuum. In order to solve this problem, a sealing partition mechanism 4 is arranged at intervals along the radial direction on the surface of the sealing sleeve 2. Under the action of two adjacent sealing partition mechanisms 4, the chamber between the two adjacent sealing partition mechanisms 4 is changed to a closed control. At the same time, a vacuum extraction port 6 is arranged on the sealing sleeve 2 between the two adjacent sealing partition mechanisms 4, and the chamber between the two adjacent sealing partition mechanisms 4 is evacuated into a vacuum state by connecting an external vacuum device.

[0027] like Figure 3 As shown, the sealing partition mechanism 4 includes a partition housing 4.1 and an actuator 4.2 which are sealed and arranged on the surface of the sealing sleeve 2. The partition housing 4.1 can be sealed and connected with the sealing sleeve 2 by welding, or by bolting and adding a sealing ring. The actuator 4.2 is fixed on the partition housing 4.1 along the radial direction of the center roller. The actuator 4.2 is sealed with the partition housing 4.1. The output end of the actuator 4.2 is located in the partition housing 4.1. A partition member 4.3 is arranged in the partition housing 4.1. Under the action of the actuator 4.2, the partition member 4.3 is pressed against the surface of the strip. The partition members 4.3 of two adjacent sealing partition mechanisms 4 make the originally existing 1mm chamber in a closed state. The closed chamber is composed of two adjacent partition members 4.3, the sealing sleeve 2 and the strip. At this time, the vacuum extraction port 5 located on this closed chamber starts to evacuate, so that the strip is in a vacuum state. The actuator 4.2 can use a power device such as a cylinder or an oil cylinder.

[0028] In this embodiment, the strip inlet 2.1 and the strip outlet 2.2 are respectively arranged on both sides of the center of the center roller 1, one below and one above. Three groups of spaced-apart sealing partition mechanisms 4 are respectively arranged on both sides of the center roller 1 to form a three-level vacuum state so that the strip can be in an absolute vacuum state.

[0029] Preferably, the partition 4.3 comprises a roller 4.3.1 and a roller shell 4.3.2 coaxially arranged inside and outside, and the roller shell 4.3.2 is fixedly connected to the actuator 4.2. When the actuator 4.2 acts, the roller 4.3.1 is pressed against the surface of the strip, and a rolling friction with relatively small friction force is formed between the roller 4.3.1 and the strip. In order to ensure the seal between the roller 4.3.1 and the roller shell 4.3.2, a sealing gasket 4.4 is provided on the end face of the roller shell 4.3.2, and the sealing gasket 4.4 ensures the seal between the roller shell and the sealing sleeve 2 after the partition 4.3 is pressed down.

[0030] like Figure 5As shown, since the pressure roller 4.3.1 has no power source of its own and is driven by the rolling friction of the center roller 1, it will cause certain damage to the thinner and softer strip when conveying. For this reason, a small gear 4.3.3 is arranged at one end of the pressure roller 4.3.1, and the small gear 4.3.3 is meshed with the large gear 1.1 arranged at the end of the center roller 1. The power provided by the center roller 1 drives the pressure roller 4.3.1 to rotate synchronously, eliminating the rolling friction. At the same time, the synchronous rotation of the center roller and the pressure roller can also be achieved through the transmission connection mode of pulleys and belts.

[0031] like Figure 4 As shown, another embodiment of the partition member 4.3 is that it includes a sliding plate 4.3.3 fixedly connected to the actuator 4.2, and a sealing pressure plate 4.3.4 is fixedly attached to the front side of the sliding plate 4.3.3. The sliding plate 4.3.3, the sealing pressure plate 4.3.4 and the partition shell 4.1 are relatively sealed, and the sealing pressure plate 4.3.4 is pressed against the strip under the action of the actuator 4.2.

[0032] In order to improve the wear resistance and lubrication performance of the pressing roller 4.3.1 and the sealing pressing plate 4.3.4, polytetrafluoroethylene, graphite or ceramic materials are selected.

[0033] like Figure 6 As shown in Figure 7, since the strip inlet 2.1 of the device is an open structure, external air will enter the sealing sleeve 2 along with the strip, resulting in a reduced vacuum effect of the entire device, or an increase in the pressure for vacuuming. For this reason, a pressing and feeding mechanism 5 is provided at the strip inlet 2.1. The pressing and feeding mechanism 5 includes a pressing roller 5.1 installed at the strip inlet 2.1. Pressing cylinders 5.2 are symmetrically installed at both ends of the pressing roller 5.1. The pressing roller 5.1 is lifted and pressed down by the action of the pressing cylinder 5.2. When the strip is initially fed, the pressing cylinder 5.2 is lifted to feed the strip into the chamber between the center roller 1 and the sealing sleeve 2. Then the pressing cylinder presses the strip and drives the strip to move under the action of the pressing force. To ensure the sealing performance, a sealing gasket is provided between the pressing roller 5.1 and the sealing sleeve 2 for sealing.

[0034] In addition to the above embodiments, the present invention also includes other implementation modes. Any technical solutions formed by equivalent transformation or equivalent replacement should fall within the protection scope of the claims of the present invention.

Claims

1. A satellite vacuum lock continuous feeding and discharging device, which includes a central roller that acts as the main power, characterized in that: A sealing sleeve is coaxially arranged on the center roller, a mechanical sealing structure is arranged between the end faces of the center roller and the sealing sleeve, a chamber for the strip to pass through is formed between the outer surface of the center roller and the sealing sleeve, a strip inlet and a strip outlet are respectively opened on the sealing sleeve, and sealing partition mechanisms are radially spaced on the surface of the sealing sleeve, two adjacent sealing partition mechanisms make the chamber become a closed space, and a vacuum outlet is arranged on the sealing sleeve between the two adjacent sealing partition mechanisms, and the chamber between the two adjacent sealing partition mechanisms is evacuated into a vacuum state by connecting an external vacuum device; The sealing partition mechanism comprises a partition shell and an actuator fixed on the surface of the sealing sleeve. The actuator is fixed on the partition shell along the radial direction of the center roller. The actuator is sealed with the partition shell. The output end of the actuator is located in the partition shell. A partition piece pressed against the strip material on the surface of the center roller is arranged in the partition shell. The partition piece is connected to the output end of the actuator. The strip inlet and the strip outlet are respectively arranged on both sides of the center of the center roller, one below and one above, and multiple groups of sealing partition mechanisms arranged at intervals are respectively arranged on both sides of the center roller to form a multi-stage vacuum state; A discharge channel connected with an adjacent vacuum device is welded at the strip outlet position, and a vacuum extraction port is opened on the discharge channel.

2. A satellite vacuum lock continuous feeding and discharging device according to claim 1, characterized in that: The partition member comprises a coaxial pressure roller and a pressure roller shell which are arranged inside and outside the pressure roller. The pressure roller shell is fixedly connected to the actuator. The pressure roller is pressed tightly against the surface of the strip under the action of the actuator.

3. A satellite vacuum lock continuous feeding and discharging device according to claim 1, characterized in that: The partition member comprises a sliding plate fixedly connected to the actuator, a sealing pressing plate is fixedly fitted on the front side of the sliding plate, and the sealing pressing plate is pressed tightly against the strip under the action of the actuator.

4. A satellite vacuum lock continuous feeding and discharging device according to claim 2, characterized in that: The pressing roller is synchronously connected with the center roller.

5. A satellite vacuum lock continuous feeding and discharging device according to claim 2, characterized in that: A sealing gasket is arranged on the end surface of the pressure roller shell, and the sealing gasket ensures that the pressure roller shell and the sealing sleeve are sealed after the partition piece is pressed down.

6. A satellite vacuum lock continuous feeding and discharging device according to claim 1, characterized in that: A clamping and feeding mechanism is provided at the strip inlet position, and the clamping and feeding mechanism includes a clamping roller installed at the strip inlet, and clamping cylinders are symmetrically installed at both ends of the clamping roller. The clamping cylinders are used to lift and press the clamping roller down, and a sealing gasket is provided between the clamping roller and the sealing sleeve for sealing.

Images