Sealing device

Abstract

The utility model relates to a sealing device which is arranged outside a material taking opening of vacuum drying equipment and comprises a sealing door, a sealing cover and a sealing cover, the sliding door assembly is connected with the sealing door, the sliding door assembly can drive the sealing door to move at a fixed point, the sliding door assembly drives the sealing door to move to a closed position, the sealing door can block the material taking opening, and the sliding door assembly drives the sealing door to move to an open position. The sealing door can completely avoid the material taking opening. The utility model provides a sealing device which improves the dustproof performance of VCD equipment, ensures the cleanliness in a vacuum chamber and improves the use safety of the equipment.

Description

Technical Field

[0001] The utility model relates to the technical field of vacuum drying equipment, in particular to a sealing device. Background Art

[0002] VCD (Vacuum Concentration Drying), that is, vacuum drying equipment, has a vacuum chamber that can provide a negative pressure environment. The air pressure in the vacuum chamber is reduced by evacuating the air. In recent years, vacuum drying equipment has been used in many fields to dry and solidify products.

[0003] In order to achieve the entry and exit of products in the vacuum chamber, generally, a material taking port connected to the vacuum chamber is opened on the vacuum drying equipment, and a transportation channel for the products is provided through the material taking port; however, the material taking port of the existing vacuum drying equipment is generally open, which, on the one hand, is easy to enter dust and affect the molding quality of the product; on the other hand, when the vacuum chamber is closed, it is easy to pinch the operator's arm, which poses certain safety hazards. Utility Model Content

[0004] To this end, the technical problem to be solved by the utility model is to overcome the problem in the prior art that the open material taking port easily causes vacuum chamber pollution and poses a safety hazard, and to provide a sealing device to improve the dustproof performance of the VCD equipment, ensure the cleanliness of the vacuum chamber, and improve the safety of the equipment.

[0005] In order to solve the above technical problems, the utility model provides a sealing device, which is arranged outside the material taking port of the vacuum drying equipment, and comprises:

[0006] Sealed doors;

[0007] A sliding door assembly is connected to the sealing door, and the sliding door assembly can drive the sealing door to move to a fixed point. The sliding door assembly drives the sealing door to move to a closed position, and the sealing door can block the material collection port. The sliding door assembly drives the sealing door to move to an open position, and the sealing door can completely avoid the material collection port.

[0008] In one embodiment of the utility model, a sealing strip is provided on the sealing door. The sealing strip is arranged around the outer circumference of the sealing door and protrudes toward the direction of the material taking port.

[0009] In one embodiment of the present invention, a protruding buffer block is provided on the outer side of the sealing door along the moving direction of the sealing door driven by the sliding door assembly.

[0010] In one embodiment of the present invention, the sliding door assembly comprises:

[0011] Sliding door drive source;

[0012] A floating joint, used to connect the sliding door driving source and the sealing door;

[0013] A speed regulating valve is connected to the sliding door driving source and is used to control the output power of the sliding door driving source.

[0014] In one embodiment of the present invention, a guide assembly is further included, wherein the guide assembly is used to support the sealing door, and the guide assembly limits the sealing door to move only between the closed position and the open position.

[0015] In one embodiment of the utility model, the sliding door assembly is arranged below the material taking port, and the sliding door assembly is a lifting drive mechanism, and the sliding door assembly drives the sealing door to move up and down.

[0016] In one embodiment of the present invention, the guide assembly comprises:

[0017] A guide shaft is arranged on both sides of the sealing door, and the guide shaft is extended along the moving direction of the sealing door;

[0018] A linear bearing is arranged on the guide shaft and can slide on the guide shaft. The linear bearing is connected to the sealing door.

[0019] In one embodiment of the utility model, the sliding door assembly is arranged on the side of the material taking port, and the sliding door assembly is a horizontal driving mechanism, and the sliding door assembly drives the sealing door to move horizontally.

[0020] In one embodiment of the present invention, the guide assembly comprises:

[0021] A slide rail is arranged below the sealing door, and the slide rail is extended along the moving direction of the sealing door;

[0022] A slide groove is provided on the sealing door, and the slide groove can support the slide rail and provide a sliding space for the slide rail.

[0023] In one embodiment of the utility model, the sliding door assembly is controlled by a PLC and cooperates with the pick-and-place assembly to complete automatic opening and closing actions.

[0024] The above technical solution of the utility model has the following advantages compared with the prior art:

[0025] The sealing device of the utility model is arranged outside the material taking port of the vacuum drying equipment, and adopts a sliding door assembly to drive the sealing door to move, so that the position of the sealing door can be switched according to different needs;

[0026] When the material is loaded or unloaded from the feeding port, the sealing door is driven to move to the open position through the sliding door assembly, so that the sealing door can completely avoid the feeding port and does not affect the loading and unloading of the material;

[0027] After the material is loaded and unloaded or the vacuum drying equipment is not working, the sealing door is driven to move to the closed position through the sliding door assembly, so that the sealing door can block the material taking port. On the one hand, it can prevent dust from entering the vacuum chamber when the vacuum chamber is closed, improve the dustproof performance of the VCD equipment, and ensure the cleanliness of the vacuum chamber. On the other hand, when the vacuum chamber is closed, it can prevent the operator from accidentally extending his arm into the closing path of the vacuum chamber, avoid personal and equipment damage, and improve the safety of equipment use. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] In order to make the content of the utility model easier to understand, the utility model is further described in detail according to the specific embodiments of the utility model in combination with the accompanying drawings, wherein:

[0029] Figure 1 It is a structural schematic diagram of a vacuum drying device in the prior art;

[0030] Figure 2 It is a structural schematic diagram of the sealing device of the utility model used on the vacuum drying equipment;

[0031] Figure 3 It is a structural schematic diagram of an embodiment of a sealing device of the utility model.

[0032] Description of the reference numerals in the specification: 1. Sealing door; 2. Sliding door assembly; 21. Sliding door driving source; 22. Floating joint; 23. Speed ​​regulating valve; 3. Guide assembly; 31. Guide shaft; 32. Linear bearing; 4. Buffer block. 100. Vacuum drying equipment; 110. Material taking port. DETAILED DESCRIPTION

[0033] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments so that those skilled in the art can better understand the present invention and implement it, but the embodiments are not intended to limit the present invention.

[0034] In the existing vacuum drying equipment, there is a vacuum chamber in a pressed form, that is, the vacuum chamber is formed by buckling the upper and lower pressing plates. For example, the Japanese patent with publication number: JP2006261379A, invention name: vacuum dryer, vacuum pump and vacuum drying method discloses such a pressed vacuum drying equipment; when using the equipment to process the product, the product is first placed on the carrier, and the surrounding of the product is exposed to the air. Then, during the mold closing process, dust can easily enter the vacuum chamber from the surrounding under the action of air pressure, thus causing product contamination. At the same time, during the mold closing process, once an operator accidentally extends his arm between the upper and lower pressing plates, the operator's arm is easily pinched, which poses certain safety hazards.

[0035] Reference Figure 1 As shown, the vacuum drying equipment 100 of the prior art, when actually used, not only has a vacuum chamber, but also has a shell covering its exterior, through which dust can be blocked to a certain extent when the upper and lower pressure plates are buckled. However, in order to realize the loading and unloading actions of the product in the vacuum chamber, a feeding port 110 connected to the vacuum chamber must be provided on the shell, and the feeding port 110 is the necessary passage for the product to enter and exit the vacuum chamber. As shown above, the feeding port 110 of the existing vacuum drying equipment 100 is generally open, so even if the shell can block the entry of dust to a certain extent, dust is still easy to enter at the feeding port 110, affecting the molding quality of the product. On the other hand, when the vacuum chamber is closed, the operator still has the risk of extending his arm from the feeding port 110 to between the upper and lower pressure plates, and this problem has not been solved.

[0036] Reference Figure 2 As shown, in the present embodiment, in order to solve the above-mentioned problem, a sealing device is provided, which is arranged outside the feeding port 110 of the vacuum drying equipment 100, and comprises: a sealing door 1 and a sliding door assembly 2, wherein: the sliding door assembly 2 is connected to the sealing door 1, and can drive the sealing door 1 to move at a fixed point, and can realize the switching of the closed door position according to different needs. When the material is loaded and unloaded from the feeding port 110, the sliding door assembly 2 drives the sealing door 1 to move to the open position, and the sealing door 1 can completely avoid the feeding port 110 without affecting the loading and unloading action of the material. When the material completes the loading and unloading action and enters the working state or the vacuum drying equipment 100 is not working, the sliding door assembly 2 drives the sealing door 1 to move to the closed position, and the sealing door 1 can block the feeding port 110;

[0037] In this embodiment, the vacuum chamber is arranged in a shell, and there is only one material taking port 110 connected to the outside. When the sealing door 1 blocks the material taking port 110, when the vacuum chamber is closed, the outer periphery of the vacuum chamber is in a relatively sealed state, which can prevent dust from entering the vacuum chamber, improve the dustproof performance of the VCD equipment, and ensure the cleanliness of the vacuum chamber; and when the vacuum chamber is closed, it can also prevent the operator from accidentally extending his arm into the closing path of the vacuum chamber, avoid personal and equipment damage, and improve the safety of equipment use.

[0038] Specifically, in order to ensure the sealing effect of the sealing door 1, in the present embodiment, a sealing strip is arranged on the sealing door 1, and the sealing strip is arranged around the outer periphery of the sealing door 1, and the sealing strip is protruded toward the direction of the feeding port 110. When the sealing door 1 blocks the feeding port 110, the sealing strip surrounds the outer periphery of the feeding port 110. On the one hand, the sealing strip can seal the gap between the feeding port 110 and the sealing door 1. On the other hand, the sealing strip is made of elastic material, for example: a rubber ring, and the sealing strip is in flexible contact with the feeding port 110 to avoid damage to the feeding port 110 or the equipment due to long-term contact.

[0039] Example 1

[0040] During the actual assembly, the position and movement mode of the sliding door assembly 2 and the sealing door 1 can be determined according to the structure of the vacuum drying equipment 100, referring to Figure 3 As shown, in the present embodiment, a vertically movable sealing door 1 structure is disclosed, namely: the sliding door assembly 2 is arranged below the feeding port 110, and the sliding door assembly 2 is arranged as a lifting drive mechanism, so that the sliding door assembly 2 drives the sealing door 1 to move up and down. Specifically, the sliding door assembly 2 includes: a sliding door drive source 21 and a floating joint 22. The sliding door drive source 21 is a cylinder drive source. The sliding door drive source 21 can output a linear driving force. The floating joint 22 is used to connect the output end of the sliding door drive source 21 and the sealing door 1. Power is transmitted through the floating joint 22, so that the sliding door drive source 21 drives the sealing door 1 to move up and down. The cylinder drive source has two states of extension and retraction, corresponding to the two fixed-point moving positions of the sealing door 1, and can realize the switching of the opening and closing states of the sealing door 1.

[0041] Specifically, in actual use, considering the safety factor, it is also necessary to control the moving speed of the sliding door driven by the sliding door drive source 21. As we all know, the extension and contraction of the cylinder is generally instantaneous. Since the sliding door drive source 21 in this embodiment is a cylinder drive source, the moving speed of the sealed door 1 is too fast under the drive of the cylinder, which can easily cause a safety accident. In order to control the moving speed of the sealed door 1, in this embodiment, the sliding door assembly 2 is also provided with a speed regulating valve 23, and the speed regulating valve 23 is connected to the sliding door drive source 21. The speed regulating valve 23 is arranged on the air supply pipeline of the sliding door drive source 21. By controlling the gas flow in the air supply pipeline, the output power of the sliding door drive source 21 is controlled, so that the lifting speed of the sealing door 1 can be controlled, and the lifting speed can be controlled within a safe range.

[0042] During the actual assembly, since the weight of the sealed door 1 is large and only one driving fulcrum is provided to support it, the sealed door 1 is prone to deflection during long-term use. In order to solve this problem, refer to Figure 3 As shown, in this embodiment, a guide assembly 3 is further provided, and the guide assembly 3 is used to support the sealing door 1, and the guide assembly 3 limits the sealing door 1 to move only between the closed position and the open position;

[0043] Specifically, the guide assembly 3 includes: a guide shaft 31 and a linear bearing 32. The guide shaft 31 is arranged on both sides of the sealing door 1, and the guide shaft 31 extends along the moving direction of the sealing door 1. The length of the guide shaft 31 is at least twice the height of the feeding port 110, and the height of the highest point of the guide shaft 31 is higher than the upper end of the feeding port 110. Only in this way can it be ensured that the sealing door 1 has sufficient moving space, so that the sealing door 1 can not only block the feeding port 110, but also completely avoid the feeding port 110. The linear bearing 32 is arranged on the guide shaft 31, and the linear bearing 32 can slide on the guide shaft 31. The linear bearing 32 is connected to the sealing door 1, and the power transmission is realized through the linear bearing 32.

[0044] Specifically, when the sealing door 1 moves, in order to prevent the sealing door 1 from directly contacting other components in the vacuum drying equipment 100 after it moves into place, thereby preventing the components or the sealing door 1 from being damaged by collision, a protruding buffer block 4 is provided on the outer side of the sealing door 1 along the moving direction of the sealing door 1 driven by the sliding door assembly 2. In the present embodiment, since the sealing door 1 moves up and down, the buffer block 4 is provided on the upper and lower sides of the sealing door 1. The buffer block 4 is an elastic structure. After the sealing door 1 moves into place, the buffer block 4 elastically contacts other components, thereby avoiding collision damage caused by rigid contact.

[0045] Example 2

[0046] As mentioned above, during the actual assembly, the position and movement mode of the sliding door assembly 2 and the sealing door 1 can be determined according to the structure of the vacuum drying equipment 100. In other embodiments, the sliding door assembly 2 can also be set on the side of the material taking port 110, and the sliding door assembly 2 can be set as a horizontal driving mechanism so that the sliding door assembly 2 drives the sealing door 1 to move horizontally. Similarly, the sliding door assembly 2 can also include: a sliding door driving source 21, a floating joint 22 and a speed regulating valve 23. The specific setting method is the same as above and will not be repeated here.

[0047] When the sliding door assembly 2 is a horizontal driving mechanism, a corresponding guide assembly 3 can also be set. Specifically, the guide assembly 3 includes: a slide rail and a slide groove. The slide rail is arranged below the sealing door 1, and the slide rail is extended along the moving direction of the sealing door 1. Similarly, the length of the slide rail is greater than twice the width of the feeding port 110, and the single-side edge of the slide rail protrudes from the edge position of the feeding port 110 to ensure that the sealing door 1 has sufficient moving space, so that the sealing door 1 can not only block the feeding port 110, but also completely avoid the feeding port 110. The slide groove is opened on the sealing door 1, and the slide groove can support the slide rail and provide sliding space for the slide rail. The limited support of the sealing door 1 is achieved through the cooperation of the slide groove and the slide groove.

[0048] Specifically, on an automated production line, the picking and placing of materials is completed by automated picking and placing components. For example, a multi-axis robotic arm with a suction cup can cooperate with the vacuum drying equipment 100 to complete the automatic loading and unloading of materials. Therefore, in order to cooperate with the automated production line, the closing device described in the utility model also adopts automated control, that is, the sliding door component 2 is controlled by a PLC, and cooperates with the picking and placing component to complete automatic opening and closing actions, that is, when the picking and placing component loads and unloads materials, the PLC controls the sliding door component 2 to drive the sealing door 1 to open. After the loading and unloading of the picking and placing component is completed, when the picking and placing component is moved out from the material taking port 110, the PLC controls the sliding door component 2 to drive the sealing door 1 to close, thereby realizing the automated coordination of the closing device described in the utility model with other equipment.

[0049] Obviously, the above embodiments are merely examples for the purpose of clear explanation and are not intended to limit the implementation methods. For those skilled in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the implementation methods here. The obvious changes or modifications derived therefrom are still within the scope of protection of the invention of the utility model.

Claims

1. A closure device, characterized in that: It is arranged outside the feeding port of the vacuum drying equipment, and includes: Sealed doors; A sliding door assembly is connected to the sealing door, and the sliding door assembly can drive the sealing door to move to a fixed point. The sliding door assembly drives the sealing door to move to a closed position, and the sealing door can block the material collection port. The sliding door assembly drives the sealing door to move to an open position, and the sealing door can completely avoid the material collection port.

2. The closure device according to claim 1, characterized in that: The sealing door is provided with a sealing strip, which is arranged around the outer circumference of the sealing door and protrudes toward the direction of the material taking port.

3. The closure device according to claim 1, characterized in that: Along the moving direction of the sealing door driven by the sliding door assembly, a protruding buffer block is arranged on the outer side of the sealing door.

4. The closure device according to claim 1, characterized in that: The sliding door assembly comprises: Sliding door drive source; A floating joint, used to connect the sliding door driving source and the sealing door; A speed regulating valve is connected to the sliding door driving source and is used to control the output power of the sliding door driving source.

5. The closure device according to claim 1, characterized in that: The invention also comprises a guide assembly, wherein the guide assembly is used for supporting the sealing door, and the guide assembly limits the sealing door to move only between the closed position and the open position.

6. The closure device according to claim 5, characterized in that: The sliding door assembly is arranged below the material taking port, and the sliding door assembly is a lifting drive mechanism, and the sliding door assembly drives the sealing door to move up and down.

7. The closure device according to claim 6, characterized in that: The guide assembly comprises: A guide shaft is arranged on both sides of the sealing door, and the guide shaft is extended along the moving direction of the sealing door; A linear bearing is arranged on the guide shaft and can slide on the guide shaft. The linear bearing is connected to the sealing door.

8. The closure device according to claim 5, characterized in that: The sliding door assembly is arranged on the side of the material taking port, and the sliding door assembly is a horizontal driving mechanism, and the sliding door assembly drives the sealing door to move horizontally.

9. The closure device according to claim 8, characterized in that: The guide assembly comprises: A slide rail is arranged below the sealing door, and the slide rail is extended along the moving direction of the sealing door; A slide groove is provided on the sealing door, and the slide groove can support the slide rail and provide a sliding space for the slide rail.

10. The closure device according to claim 1, characterized in that: The sliding door assembly is controlled by a PLC and cooperates with the pick-and-place assembly to complete automatic opening and closing actions.

Images