Enclosed automatic dispensing system

Abstract

The application discloses a closed automatic dispensing system, which is provided with a door hole on a sealing bin, a sealing ring is arranged at the periphery of the door hole, a movable door body is arranged in front of the door hole, a door frame is arranged on the left and right sides of the door body, a linear guide rail is arranged on the sealing bin on the left and right sides of the door hole, the door frame is connected with the corresponding linear guide rail through a sliding block, a guide strip is arranged between the linear guide rail and the door frame, a groove corresponding to the guide bearing is formed in the front surface of the guide strip, the sliding block and the door frame are connected through a connecting block and a pin shaft, one end of the connecting block is connected with the sliding block, an obliquely arranged strip-shaped groove is formed in the side end surface of the other end of the connecting block, and the included angle between the oblique direction of the strip-shaped groove and the movement direction of the door body is 30 degrees. When the door body is opened, the application can avoid the damage of instantaneous pressure relief to the sealing ring, so that the stability of the sealing performance of the bin body in the long-term use process is ensured.

Description

Technical Field

[0001] The present invention relates to the technical field of glue dispensing, and in particular to a closed automatic glue dispensing system. Background Art

[0002] Glue dispensers, also known as glue applicators, glue dispensers, glue dispensers, and glue filling machines, are automated machines that control and apply fluids to or within product surfaces. In non-vacuum environments, air can enter the glue before and after it drips onto the product, directly impacting product quality. Therefore, developing a dispensing mechanism capable of operating under vacuum conditions is crucial. However, dispensing in vacuum environments presents more challenges than dispensing in normal pressure environments: achieving a good seal and measuring the waste generated during the dispensing process—issues for which currently lack effective solutions. Summary of the Invention

[0003] The purpose of the present invention is to provide a closed automatic dispensing system, which can not only ensure the sealing inside the warehouse when the door is closed, but also avoid damage to the sealing ring caused by instantaneous pressure release when the door is opened, thereby ensuring the stability of the sealing performance of the warehouse during long-term use.

[0004] To achieve the above object, the technical solution adopted by the present invention is: a closed automatic dispensing system, comprising a sealed chamber, a frame, a dispensing valve and a workbench, wherein the sealed chamber is mounted on the frame, the dispensing valve and the workbench are both located in the sealed chamber, and the dispensing valve is located directly above the workbench;

[0005] The sealed bin is provided with a door opening, a sealing ring is provided at the edges of the door opening, a movable door body is provided at the front side of the door opening, a door frame is provided on the left and right sides of the door body, and a linear guide rail is provided on the sealed bins on the left and right sides of the door opening, respectively. The two door frames are each connected to the corresponding linear guide rail through a sliding block, so that the door body can move up and down in the vertical direction;

[0006] A guide bar is installed between the linear guide rail and the door frame, and at least one rotatable guide bearing is installed on the side end surface of the door frame. When the door body moves up and down in the vertical direction, the guide bearing that moves up and down with the door frame rolls on the front surface of the guide bar;

[0007] At least two rotatable rollers are provided between the side end surface of the guide bar close to the door frame and the corresponding door frame. The rollers are arranged at intervals along the movement direction of the door body. When the door frame moves up and down with the door body, the side end surface of the guide bar and the corresponding door frame are rollingly connected through the rollers. The two rollers are installed in the installation grooves on the door frame at intervals.

[0008] A groove corresponding to the guide bearing is provided on the front surface of the guide strip, and the sliding block is connected to the door frame through a connecting block and a pin shaft, one end of the connecting block is connected to the sliding block, and an inclined strip groove is provided on the side end surface of the other end of the connecting block, and the angle formed between the inclination direction of the strip groove and the movement direction of the door body is 30°, one end of the pin shaft is fixedly connected to the door frame, and the other end of the pin shaft can be movably embedded in the strip groove, and the groove includes a planar recessed portion and arc-shaped connecting portions respectively connected to both ends of the planar recessed portion, and an end of the arc-shaped connecting portion away from the planar recessed portion is located in the same plane as the front surface of the guide strip;

[0009] When the door body is in a closed state, the guide bearing is embedded in the corresponding groove and forms a gap with the bottom surface of the groove. There is a gap between the pin shaft located in the strip groove and the end of the strip groove close to the sealing ring, and the door body is in extrusion contact with the sealing ring.

[0010] When the door body is in an open state, the guide bearing rolls out of the corresponding groove, and the pin located in the strip groove moves toward the end of the strip groove away from the sealing ring, and the door body and the sealing ring are spaced apart;

[0011] The workbench is provided with a weighing structure, which includes a base mounted on the workbench, a movable carrier mounted on the upper part of the base, and a material cup placed on the upper surface of the movable carrier. The two ends of the movable carrier correspond to the two end surfaces of the base one by one, and are connected by a guide part and a movable part, so that the movable carrier can move up and down relative to the base.

[0012] The lower surface of the movable carrier is connected to the bottom plate of the base through at least two elastic members, and the elastic members are respectively arranged at both ends of the movable carrier. A sensing ridge is provided on the lower surface of at least one end of the movable carrier, and a first sensor for sensing the sensing ridge is installed on the base.

[0013] The further improved scheme in the above technical scheme is as follows:

[0014] 1. In the above solution, a cylinder is installed on the sealing chamber and below the sliding block.

[0015] 2. In the above solution, the circumferential surface of the roller extends out from the mounting groove and contacts and connects with the side end surface of the guide bar.

[0016] 3. In the above solution, the number of the elastic members is 4, all of which are springs.

[0017] 4. In the above solution, the movable part is a protruding part respectively arranged at both ends of the movable carrier plate, and the guide part is a groove part respectively arranged on the two end surfaces of the base. The protruding parts are each embedded in the corresponding groove part and can move up and down in the groove part.

[0018] Due to the application of the above technical solution, the present invention has the following advantages compared with the prior art:

[0019] 1. The closed automatic dispensing system of the present invention saves space and facilitates opening and closing. Through the matching arrangement of the guide bearing and the groove, the pin shaft and the strip groove, during the closing process of the door body, the pin shaft provides a tangential force, so that the guide bearing is embedded in the groove, and the door body squeezes the sealing ring. On the basis of saving space and facilitating opening and closing, the sealing inside the warehouse is ensured when the door body is in the closed state, and the wear of the sealing ring during the opening and closing process of the door body can be avoided. When the door body is opened, the damage to the sealing ring caused by instantaneous pressure relief can be avoided, thereby ensuring the stability of the sealing performance of the warehouse body during long-term use.

[0020] 2. The closed automatic dispensing system of the present invention has at least two rotatable rollers arranged between the side end face of the guide strip close to the door frame and the corresponding door frame, and the rollers are arranged at intervals along the movement direction of the door body. When the door frame moves up and down with the door body, the side end face of the guide strip and the corresponding door frame are rollingly connected through the rollers. The laterally arranged rollers cooperate with the guide bearings to provide three-dimensional guidance for the up and down movement of the door body, thereby avoiding the door body from shaking left and right during movement, which causes positional offset between the door body and the sealing ring, and further ensures the stability of the sealing performance in the warehouse when the dispensing mechanism is in working state.

[0021] 3. In the enclosed automatic dispensing system of the present invention, when the door body is in a closed state, the guide bearing is embedded in the corresponding groove and forms a gap with the bottom surface of the groove. There is a gap between the pin shaft located in the strip groove and the end of the strip groove close to the sealing ring. The door body is in squeeze contact with the sealing ring. The gap setting between the guide bearing and the groove, and between the pin shaft and the strip groove provides a retractable space. When the warehouse body is vacuumed, it can not only avoid the negative pressure from being transferred to the pin shaft and damaging the pin shaft, but also make the door body more tightly press the sealing ring under the action of negative pressure, thereby improving the sealing performance of the dispensing mechanism.

[0022] 4. The closed automatic dispensing system of the present invention utilizes the structure of the elastic part located between the lower surface of the movable carrier and the bottom plate of the base to assist the sensor in effectively monitoring the distance, thereby realizing the weight measurement of the liquid in a vacuum environment, solving the problem that electronic weighing equipment is difficult to use in a vacuum environment, and has strong stability, can save time and labor costs, strengthen automatic linkage, and can also replace container specifications according to actual needs, with strong adaptability. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Attachment Figure 1 Schematic diagram of the structure of the closed automatic dispensing system of the present invention;

[0024] Attachment Figure 2 This is a schematic diagram of the door opening and sealing ring structure of the enclosed automatic dispensing system of the present invention;

[0025] Attachment Figure 3 This is a schematic diagram of the door module structure of the enclosed automatic dispensing system of the present invention;

[0026] Attachment Figure 4 It is a partial structural diagram of the closed automatic dispensing system of the present invention;

[0027] Attachment Figure 5 Schematic diagram of the roller structure of the closed automatic dispensing system of the present invention;

[0028] Attachment Figure 6 This is a schematic diagram of the internal structure of the sealed chamber of the closed automatic dispensing system of the present invention;

[0029] Attachment Figure 7 This is a structural schematic diagram of the movable carrier module of the closed automatic dispensing system of the present invention;

[0030] Attachment Figure 8 This is a schematic diagram of the structure of the groove part and the convex part of the closed automatic dispensing system of the present invention;

[0031] Attachment Figure 9 The sensor convex strip and the second sensor structure of the closed automatic dispensing system of the present invention;

[0032] Attachment Figure 10 This is a schematic diagram of the weighing mechanism structure of the closed automatic dispensing system of the present invention.

[0033] In the above drawings: 1. Sealing chamber; 2. Door opening; 3. Sealing ring; 4. Door body; 5. Door frame; 6. Linear guide rail; 7. Sliding block; 8. Cylinder; 9. Guide strip; 10. Guide bearing; 11. Groove; 111. Plane recessed portion; 112. Arc-shaped connecting portion; 12. Connecting block; 13. Pin; 14. Strip groove; 15. Roller; 16. Frame; 17. Dispensing valve; 18. Workbench; 21. Base; 211. Second bending strip; 212. Groove portion; 22. Movable carrier plate; 221. First bending strip; 222. Outer convex portion; 23. Material cup; 24. Elastic member; 25. Sensing convex strip; 26. First sensor; 27. Limit column; 28. Second sensor; 29. ​​Guide portion; 30. Movable portion. Implementation Method

[0034] In the description of this patent, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," "outer," and the like, indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings and are intended only to facilitate the description of the present invention and simplify the description. They do not indicate or imply that the devices or components referred to must have a specific orientation, be constructed, or operate in a specific orientation, and therefore should not be construed as limiting the present invention. The terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. In addition, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense, for example, to mean a fixed connection, a detachable connection, or an integral connection; a mechanical connection or an electrical connection; a direct connection, an indirect connection through an intermediate medium, or internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in this patent in specific circumstances.

[0035] Example 1: A closed automatic dispensing system, characterized by comprising a sealed chamber 1, a frame 16, a dispensing valve 17, and a workbench 18, wherein the sealed chamber 1 is mounted on the frame 16, the dispensing valve 17 and the workbench 18 are both located in the sealed chamber 1, and the dispensing valve 17 is located directly above the workbench 18;

[0036] The sealed chamber 1 has a door opening 2, and a sealing ring 3 is provided on the edges of the door opening 2. A movable door body 4 is provided on the front side of the door opening 2, and a door frame 5 is provided on the left and right sides of the door body 4. A linear guide rail 6 is provided on the sealed chamber 1 on the left and right sides of the door opening 2. The two door frames 5 are each connected to the corresponding linear guide rail 6 through a sliding block 7, so that the door body 4 can move up and down in the vertical direction;

[0037] A guide bar 9 is installed between the linear guide rail 6 and the door frame 5. A rotatable guide bearing 10 is installed on the side end surface of the door frame 5. When the door body 4 moves up and down in the vertical direction, the guide bearing 10 moves up and down with the door frame 5 and rolls on the front surface of the guide bar 9.

[0038] Two rotatable rollers 15 are provided between the side end surface of the guide strip 9 close to the door frame 5 and the corresponding door frame 5. The rollers 15 are arranged at intervals along the movement direction of the door body 4. When the door frame 5 moves up and down with the door body 4, the side end surface of the guide strip 9 and the corresponding door frame 5 are rollingly connected through the rollers 15.

[0039] A groove 11 corresponding to the guide bearing 10 is formed on the front surface of the guide bar 9. The sliding block 7 is connected to the door frame 5 via a connecting block 12 and a pin 13. One end of the connecting block 12 is connected to the sliding block 7, and an oblique strip groove 14 is formed on the side surface of the other end of the connecting block 12. One end of the pin 13 is fixedly connected to the door frame 5, and the other end of the pin 13 is movably embedded in the strip groove 14.

[0040] When the door body 4 is in a closed state, the guide bearing 10 is embedded in the corresponding groove 11 and forms a gap with the bottom surface of the groove 11. There is a gap between the pin 13 located in the strip groove 14 and the end of the strip groove 14 close to the sealing ring 3. The door body 4 is in squeeze contact with the sealing ring 3.

[0041] When the door body 4 is in the open state, the guide bearing 10 rolls out from the corresponding groove 11, and the pin 13 located in the strip groove 14 moves toward the end of the strip groove 14 away from the sealing ring 3, and the door body 4 and the sealing ring 3 are spaced apart.

[0042] The workbench 18 is provided with a weighing structure, which includes a base 21 mounted on the workbench, a movable carrier plate 22 mounted on the upper portion of the base 21, and a material cup 23 placed on the upper surface of the movable carrier plate 22. The two ends of the movable carrier plate 22 correspond to the two end surfaces of the base 21 one by one, and are connected by a guide portion 29 and a movable portion 30, so that the movable carrier plate 22 can move up and down relative to the base 21.

[0043] The lower surface of the movable carrier 22 is connected to the bottom plate of the base 21 via two elastic members 24 , and the elastic members 24 are respectively arranged at both ends of the movable carrier 22 . A sensing ridge 25 is provided on the lower surface of one end of the movable carrier 22 , and a first sensor 26 for sensing the sensing ridge 25 is installed on the base 21 .

[0044] A cylinder 8 is installed on the sealing chamber 1 and below the sliding block 7.

[0045] The groove 11 includes a planar recessed portion 111 and arcuate connecting portions 112 connected to both ends of the planar recessed portion 111 . One end of the arcuate connecting portion 112 away from the planar recessed portion 111 is located in the same plane as the front surface of the guide bar 9 .

[0046] The two rollers 15 are installed in the installation grooves on the door frame 5 at intervals. The circumferential surfaces of the rollers 15 extend from the installation grooves and are in contact with and connected to the side end surfaces of the guide strips 9 .

[0047] Example 2: A closed automatic dispensing system, characterized in that it includes a sealed chamber 1, a frame 16, a dispensing valve 17 and a workbench 18, wherein the sealed chamber 1 is mounted on the frame 16, the dispensing valve 17 and the workbench 18 are both located in the sealed chamber 1, and the dispensing valve 17 is located directly above the workbench 18;

[0048] The sealed chamber 1 has a door opening 2, and a sealing ring 3 is provided on the edges of the door opening 2. A movable door body 4 is provided on the front side of the door opening 2, and a door frame 5 is provided on the left and right sides of the door body 4. A linear guide rail 6 is provided on the sealed chamber 1 on the left and right sides of the door opening 2. The two door frames 5 are each connected to the corresponding linear guide rail 6 through a sliding block 7, so that the door body 4 can move up and down in the vertical direction;

[0049] A guide bar 9 is installed between the linear guide rail 6 and the door frame 5. A rotatable guide bearing 10 is installed on the side end surface of the door frame 5. When the door body 4 moves up and down in the vertical direction, the guide bearing 10 moves up and down with the door frame 5 and rolls on the front surface of the guide bar 9.

[0050] Three rotatable rollers 15 are provided between the side end surface of the guide bar 9 close to the door frame 5 and the corresponding door frame 5. The rollers 15 are arranged at intervals along the movement direction of the door body 4. When the door frame 5 moves up and down with the door body 4, the side end surface of the guide bar 9 and the corresponding door frame 5 are rollingly connected through the rollers 15.

[0051] A groove 11 corresponding to the guide bearing 10 is formed on the front surface of the guide bar 9. The sliding block 7 is connected to the door frame 5 via a connecting block 12 and a pin 13. One end of the connecting block 12 is connected to the sliding block 7, and an oblique strip groove 14 is formed on the side surface of the other end of the connecting block 12. One end of the pin 13 is fixedly connected to the door frame 5, and the other end of the pin 13 is movably embedded in the strip groove 14.

[0052] When the door body 4 is in a closed state, the guide bearing 10 is embedded in the corresponding groove 11 and forms a gap with the bottom surface of the groove 11. There is a gap between the pin 13 located in the strip groove 14 and the end of the strip groove 14 close to the sealing ring 3. The door body 4 is in squeeze contact with the sealing ring 3.

[0053] When the door body 4 is in the open state, the guide bearing 10 rolls out from the corresponding groove 11, and the pin 13 located in the strip groove 14 moves toward the end of the strip groove 14 away from the sealing ring 3, and the door body 4 and the sealing ring 3 are spaced apart.

[0054] The workbench 18 is provided with a weighing structure, which includes a base 21 mounted on the workbench, a movable carrier plate 22 mounted on the upper portion of the base 21, and a material cup 23 placed on the upper surface of the movable carrier plate 22. The two ends of the movable carrier plate 22 correspond to the two end surfaces of the base 21 one by one, and are connected by a guide portion 29 and a movable portion 30, so that the movable carrier plate 22 can move up and down relative to the base 21.

[0055] The lower surface of the movable carrier 22 is connected to the bottom plate of the base 21 via four elastic members 24 , and the elastic members 24 are respectively arranged at both ends of the movable carrier 22 . A sensing ridge 25 is provided on the lower surface of both ends of the movable carrier 22 , and a first sensor 26 for sensing the sensing ridge 25 is installed on the base 21 .

[0056] There are four elastic members 24 , all of which are springs.

[0057] The lower surface of the movable carrier plate 22 has a first bending strip 221 extending downward, and the bottom plate of the base 21 has a second bending strip 211 extending upward. The first bending strip 221 and the second bending strip 211 overlap to form a limiting column 27 for fitting the elastic member 24.

[0058] A second sensor 28 is mounted on one end of the movable carrier plate 22 that can move up and down. The second sensor 28 is located outside the material cup 23 .

[0059] When the dispensing mechanism is operating, the sealed chamber must be in a vacuum state, the door must be closed, and the sealing ring must be compressed. The cylinder's output power drives the piston upward, which in turn drives the connecting block and sliding block upward along the linear guide rail. The connecting block's internal pin then drives the door and door frame upward. The sealed door, along with the connected guide bearing, moves upward along the contoured guide strip until it reaches the desired position, where it fits tightly against the chamber. When the dispensing mechanism is finished, the sealed chamber must be in a vacuum state and the door must be opened. The door module operates in a similar manner.

[0060] The closed automatic dispensing system of the present invention saves space and facilitates opening and closing. By coordinating the guide bearing with the groove, the pin shaft with the strip groove, during the closing process of the door body, the pin shaft provides a tangential force, so that the guide bearing is embedded in the groove, and at the same time the door body squeezes the sealing ring. On the basis of saving space and facilitating opening and closing, the sealing performance of the warehouse is ensured when the door body is in the closed state, and the wear of the sealing ring during the opening and closing process of the door body can be avoided. When the door body is opened, the damage to the sealing ring caused by instantaneous pressure relief can be avoided, thereby ensuring the stability of the sealing performance of the warehouse body during long-term use.

[0061] In addition, the side rollers cooperate with the guide bearings to provide three-dimensional guidance for the up and down movement of the door body, preventing the door body from shaking left and right during movement, which may cause positional deviation between the door body and the sealing ring, and further ensure the stability of the sealing performance in the chamber when the dispensing mechanism is in working state;

[0062] Furthermore, the gaps between the guide bearing and the groove, and between the pin and the strip groove, provide a retractable space. When the chamber is vacuumed, this can prevent the negative pressure from being transferred to the pin and damaging it, and can also allow the door to be more tightly pressed against the sealing ring under the action of negative pressure, thereby improving the sealing performance of the dispensing mechanism.

[0063] In addition, it utilizes the structure of the elastic part located between the lower surface of the movable carrier and the bottom plate of the base to assist the sensor in effectively monitoring the distance, thereby realizing the weight measurement of the liquid in a vacuum environment, solving the problem that electronic weighing equipment is difficult to use in a vacuum environment, and has strong stability, which can save time and labor costs, enhance automation linkage, and can also replace container specifications according to actual needs, with strong adaptability.

[0064] The above embodiments are intended only to illustrate the technical concepts and features of the present invention. Their purpose is to enable those skilled in the art to understand the contents of the present invention and implement them accordingly. They are not intended to limit the scope of protection of the present invention. Any equivalent changes or modifications made in accordance with the spirit of the present invention are intended to be covered by the scope of protection of the present invention.

Claims

1. A closed automatic dispensing system, characterized by: It comprises a sealing chamber (1), a frame (16), a dispensing valve (17) and a workbench (18), wherein the sealing chamber (1) is mounted on the frame (16), the dispensing valve (17) and the workbench (18) are both located in the sealing chamber (1), and the dispensing valve (17) is located directly above the workbench (18); The sealed bin (1) is provided with a door opening (2), and a sealing ring (3) is provided at the edges of the door opening (2). A movable door body (4) is provided at the front side of the door opening (2), and a door frame (5) is provided on the left and right sides of the door body (4). A linear guide rail (6) is provided on each of the sealed bins (1) located on the left and right sides of the door opening (2). The two door frames (5) are each connected to the corresponding linear guide rail (6) through a sliding block (7), so that the door body (4) can move up and down in the vertical direction. A guide bar (9) is installed between the linear guide rail (6) and the door frame (5), and at least one rotatable guide bearing (10) is installed on the side end surface of the door frame (5). When the door body (4) moves up and down in the vertical direction, the guide bearing (10) moves up and down with the door frame (5) and rolls on the front surface of the guide bar (9); At least two rotatable rollers (15) are provided between the side end surface of the guide strip (9) close to the door frame (5) and the corresponding door frame (5), and the rollers (15) are arranged at intervals along the movement direction of the door body (4). When the door frame (5) moves up and down with the door body (4), the side end surface of the guide strip (9) and the corresponding door frame (5) are rollingly connected via the rollers (15). Two of the rollers (15) are installed at intervals in the installation grooves on the door frame (5); A groove (11) corresponding to the guide bearing (10) is provided on the front surface of the guide bar (9), and the sliding block (7) is connected to the door frame (5) through a connecting block (12) and a pin shaft (13). One end of the connecting block (12) is connected to the sliding block (7), and an inclined strip groove (14) is provided on the side end surface of the other end of the connecting block (12). The angle formed between the inclined direction of the strip groove (14) and the movement direction of the door body (4) is 30°. One end of the pin shaft (13) is fixedly connected to the door frame (5), and the other end of the pin shaft (13) is movably embedded in the strip groove (14). The groove (11) includes a planar recessed portion (111) and arc-shaped connecting portions (112) respectively connected to both ends of the planar recessed portion (111), and the end of the arc-shaped connecting portion (112) away from the planar recessed portion (111) is located in the same plane as the front surface of the guide bar (9); When the door body (4) is in a closed state, the guide bearing (10) is embedded in the corresponding groove (11) and forms a gap with the bottom surface of the groove (11), and there is a gap between the pin shaft (13) located in the strip groove (14) and the end of the strip groove (14) close to the sealing ring (3), and the door body (4) is in extrusion contact with the sealing ring (3); When the door body (4) is in an open state, the guide bearing (10) rolls out of the corresponding groove (11), and the pin (13) located in the strip groove (14) moves toward the end of the strip groove (14) away from the sealing ring (3), and the door body (4) and the sealing ring (3) are spaced apart. A weighing structure is provided on the workbench (18), and the weighing structure includes a base (21) mounted on the workbench, a movable carrier (22) mounted on the upper part of the base (21), and a material cup (23) placed on the upper surface of the movable carrier (22), the two ends of the movable carrier (22) corresponding to the two end surfaces of the base (21) one by one, and are connected by a guide portion (29) and a movable portion (30), so that the movable carrier (22) can move up and down relative to the base (21); The lower surface of the movable carrier (22) is connected to the bottom plate of the base (21) via at least two elastic members (24), and the elastic members (24) are respectively arranged at both ends of the movable carrier (22). A sensing ridge (25) is provided on the lower surface of at least one end of the movable carrier (22), and a first sensor (26) for sensing the sensing ridge (25) is installed on the base (21).

2. The closed automatic dispensing system according to claim 1, characterized in that: A cylinder (8) is installed on the sealing chamber (1) and below the sliding block (7).

3. The closed automatic dispensing system according to claim 1, characterized in that: The circumferential surface of the roller (15) extends from the mounting groove and is in contact with the side end surface of the guide strip (9).

4. The closed automatic dispensing system according to claim 1, characterized in that: The number of the elastic members (24) is 4, all of which are springs.

5. The closed automatic dispensing system according to claim 1, characterized in that: The movable portion (30) is a protruding portion (222) respectively provided at both ends of the movable carrier plate (22), and the guide portion (29) is a groove portion (212) respectively provided on the two end surfaces of the base (21). The protruding portions (222) are respectively embedded in the corresponding groove portion (212) and can move up and down in the groove portion (212).

Images