An intelligent dispensing device for toothpaste

Abstract

The present application relates to the technical field of valve, especially to a kind of intelligent material control device for toothpaste, including valve body, the front surface of the valve body is fixedly connected with valve seat, the front end surface of the valve seat is inserted with valve cover, the inside of the valve body and valve seat is equipped with two flow channels, the inner wall of the flow channel in upper portion is inserted with sliding plate along vertical direction, the outer surface of the sliding plate is equipped with the through hole that shape is adapted to flow channel inner wall, the rear surface of the sliding plate is fixedly connected with the moving plate extending towards rear at lower edge, the moving plate is slidably penetrated through the inside of valve seat, the rear end of the moving plate extends towards one side and is bent plate, the rear surface of valve cover is fixedly connected with plug at one side, the lower surface of the plug is equipped with inclined groove, the present application is automatically formed when disassembling groove, residual paste and cleaning water are collected, avoid sealing ring groove pollution, overall facilitate quick disassembly, simplify diaphragm maintenance, shorten downtime.

Description

Technical Field

[0001] This invention relates to the field of valve technology, and more particularly to an intelligent material control device for toothpaste. Background Technology

[0002] In the large-scale production of toothpaste, core processes such as paste conveying, mixing, homogenization, and filling place stringent requirements on the sealing performance, hygiene standards, wear resistance, and adaptability to high-viscosity media containing particles in fluid control components. To address the intelligent material control needs in toothpaste production, the mainstream integrated intelligent material control devices currently used in toothpaste production employ pneumatic hygiene-grade diaphragm valves as actuators. These valves, working in conjunction with signal commands from the intelligent material control system, receive control signals through a pneumatic actuator, driving the valve stem to precisely engage or disengage the diaphragm against the valve body's sealing surface. This enables intelligent control of paste flow and delivery rate, adapting to the material control rhythm of each stage of toothpaste production and ensuring accurate paste mixing ratios and stable filling metering.

[0003] In response to the high viscosity and particle content of toothpaste, existing diaphragm valves are mostly equipped with special structural optimizations, such as setting transverse reinforcing ribs on the diaphragm surface to improve rigidity and prevent deformation and tearing, using an annular convex strip design on the sealing lip to achieve sealing and pressure enhancement, and using diaphragm pressure blocks to achieve uniform transmission of valve stem thrust and reduce local stress wear on the diaphragm.

[0004] However, during long-term continuous production, the diaphragm is prone to wear, swelling, and cracking due to the abrasive action of hard abrasives in toothpaste, the corrosive effect of functional additives, and the adhesion and drying of high-viscosity paste. This leads to decreased sealing performance, resulting in paste leakage or vacuum depressurization, thus requiring regular maintenance and replacement. When the pipeline is arranged vertically, residual paste and abrasive particles in the flow channel can easily drip near the sealing ring groove during maintenance and disassembly, interfering with the accuracy of diaphragm replacement and further affecting the sealing effect. The disassembly and maintenance process of traditional diaphragm valves is cumbersome, requiring multiple disassemblies of clamps and actuators, resulting in long downtime and affecting production efficiency.

[0005] Therefore, in order to simplify the maintenance and disassembly process and reduce toothpaste residue and secondary pollution during maintenance, an intelligent material control device for toothpaste is proposed. Summary of the Invention

[0006] The purpose of this invention is to address the shortcomings of the prior art by proposing an intelligent material control device for toothpaste.

[0007] To achieve the above objectives, the technical solution adopted by the present invention is as follows: an intelligent material control device for toothpaste, comprising a valve body, a valve seat fixedly connected to the front surface of the valve body, a valve cover inserted into the front end face of the valve seat, two flow channels being opened together on the inner side of the valve body and the valve seat, a sliding plate being slidably inserted into the inner wall of the upper flow channel along the vertical direction, an opening adapted to the shape of the inner wall of the flow channel being opened on the outer surface of the sliding plate, a movable plate extending backward being fixedly connected to the lower side of the rear surface of the sliding plate, the movable plate slidingly penetrating the inner side of the valve seat, a bent plate extending to one side from the rear end of the movable plate, an insert block being fixedly connected to one side of the rear surface of the valve cover, an inclined groove being opened on the lower surface of the insert block, a flat groove extending forward being opened on the inner top surface of the inclined groove, and the bent plate slidingly inserting into the inner side of the flat groove;

[0008] When the valve cover is disassembled, the insert block moves forward, the bending plate moves backward along the inside of the flat groove, and slides out through the inclined groove. The bending plate descends, causing the sliding plate to descend. After moving down, a groove is formed on the inner bottom surface of the upper flow channel.

[0009] Preferably, the valve seat includes a main seat body fixedly connected to the front surface of the valve body. A splicing seat is fixedly embedded in the front surface of the main seat body. A flow port adapted to the shape of the inner wall of the upper flow channel is opened through the front surface of the splicing seat. A sliding groove is opened in the rear surface of the splicing seat. A sliding plate is slidably inserted into the inner side of the sliding groove. The rear surface of the sliding plate is in sliding contact with the front surface of the main seat body. A through-hole is opened on one side of the front surface of the main seat body. An insert block is fixedly connected to one side of the rear surface of the splicing seat. The insert block is slidably inserted into the inner side of the through-hole. A moving plate slides through the inner side of the through-hole, and one side of the moving plate is in sliding contact with the side surface of the insert block.

[0010] Preferably, the main body and the splicing base have a first socket on one side, the plug is slidably inserted into the inside of the first socket, the other side of the main body has a second socket, the rear end face of the valve cover and the side away from the plug is fixedly connected to a locking block, the locking block is slidably inserted into the inside of the second socket, and the upper surfaces of the locking block and the plug are respectively provided with a clamping mechanism.

[0011] Preferably, the locking mechanism includes recessed grooves respectively formed on the upper surfaces of the locking block and the insert block, a rotating shaft is rotatably fitted inside the recessed groove, a rotating plate is fixedly connected to the outer surface of the rotating shaft, and the front edge of the rotating plate abuts against the rear surface of the valve seat.

[0012] Preferably, the front end face of the insert block has an inclined guide surface.

[0013] Preferably, a fixed plate is fixedly connected to the rear side of the lower surface of the movable plate, and a plurality of T-shaped columns slide through the inner side of the fixed plate. The front ends of the plurality of T-shaped columns are fixedly connected to an anti-slip plate. The front surface of the anti-slip plate contacts the rear surface of the valve seat. A compression spring is sleeved on the outer surface of the T-shaped column, and the compression spring is located between the anti-slip plate and the fixed plate.

[0014] Preferably, a valve stem is slidably inserted into the inner side of the valve cover, a piston is fixedly connected to the front end of the valve stem, the piston slides in contact with the inner wall of the valve cover, a first air nozzle is fixedly embedded in the middle of the front end face of the valve cover, a second air nozzle is fixedly embedded in the edge of the front end face of the valve cover, the rear end of the second air nozzle extends to the rear of the piston, a valve head is fixedly connected to the rear end of the valve stem, a retaining sleeve is fixedly embedded in the middle of the inner side of the valve cover, a retaining disc is fixedly sleeved on the outer surface of the valve stem, the retaining disc slides into the inner side of the retaining sleeve, a pressure block is embedded in the rear end of the valve cover, the rear end of the valve head presses against the front surface of the pressure block, a diaphragm is provided on the rear surface of the pressure block, and the diaphragm and the edge of the pressure block are fixedly clamped between the valve seat and the valve cover.

[0015] Preferably, the rear surface of the diaphragm is provided with a reinforcing strip, the front surface of the valve seat is provided with a sealing ring groove, and limit ports are respectively provided on both sides of the front port of the valve seat. The rear surface of the diaphragm is embedded in the inner side of the sealing ring groove, and the two sides of the reinforcing strip are respectively embedded in the inner side of the limit ports.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] This invention automatically forms grooves during disassembly to collect residual paste and cleaning water, avoiding contamination of the sealing ring groove and ensuring the accuracy of diaphragm replacement and sealing effect.

[0018] This invention utilizes the guiding effect of inclined guide surfaces, inclined grooves, and flat grooves to achieve precise repositioning of the sliding plate, avoid manual operation errors, ensure a smooth flow channel, and not affect the delivery of the paste.

[0019] This invention uses a combination of an anti-slip plate and a compression spring to form frictional positioning, preventing the sliding plate and moving plate from falling due to gravity, thus improving the safety and stability of maintenance operations.

[0020] The overall structure of this invention facilitates quick disassembly and assembly, simplifies the diaphragm maintenance process, shortens downtime, and meets the hygienic and efficient production requirements of toothpaste manufacturing. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the structure of an intelligent material control device for toothpaste according to the present invention;

[0022] Figure 2This is a schematic diagram from another perspective of an intelligent material control device for toothpaste according to the present invention;

[0023] Figure 3 This invention relates to an intelligent material control device for toothpaste. Figure 2 Enlarged view of point A in the middle;

[0024] Figure 4 This is a cross-sectional view of the valve cap of an intelligent material control device for toothpaste according to the present invention;

[0025] Figure 5 This invention relates to an intelligent material control device for toothpaste. Figure 4 Enlarged view at point B in the middle;

[0026] Figure 6 This is a cross-sectional view of the valve body of an intelligent material control device for toothpaste according to the present invention.

[0027] Figure 7 This invention relates to an intelligent material control device for toothpaste. Figure 6 Enlarged view at point C;

[0028] Figure 8 This is a schematic diagram of the splicing base of an intelligent material control device for toothpaste according to the present invention;

[0029] Figure 9 This is a schematic diagram of the valve seat of an intelligent material control device for toothpaste according to the present invention;

[0030] Figure 10 This is a schematic diagram of the diaphragm of an intelligent material control device for toothpaste according to the present invention;

[0031] Figure 11 This is a schematic diagram of the sliding plate of an intelligent material control device for toothpaste according to the present invention;

[0032] Figure 12 This is a schematic diagram of the valve seat and valve cover assembly of an intelligent material control device for toothpaste according to the present invention;

[0033] Figure 13 This invention relates to an intelligent material control device for toothpaste. Figure 12 Enlarged view of point D in the middle.

[0034] The components include: 1. Valve body; 2. Valve cover; 3. Valve seat; 301. Splicing seat; 302. Flow port; 303. Embedded block; 304. Sliding groove; 305. Through port; 306. Main seat body; 4. Diaphragm; 5. Pressure block; 6. Reinforcing strip; 7. Limiting port; 8. Sealing ring groove; 9. Flow channel; 10. Sliding plate; 11. Through port; 12. Moving plate; 13. Bending plate; 14. Fixing plate; 15. 16. T-shaped column; 17. Compression spring; 18. Anti-slip plate; 19. Insert block; 20. First insertion port; 21. Second insertion port; 22. Locking block; 23. Recessed groove; 24. Rotating plate; 25. Rotating shaft; 26. Inclined groove; 27. Flat groove; 28. Inclined guide surface; 29. ​​First air nozzle; 20. Second air nozzle; 31. Valve stem; 32. Piston; 33. Holding cylinder; 34. Holding disc; 35. Valve head. Detailed Implementation

[0035] The following description is intended to disclose the invention and enable those skilled in the art to implement it. The preferred embodiments described below are merely examples, and other obvious variations will occur to those skilled in the art.

[0036] like Figures 1-13 The intelligent control device for toothpaste shown includes a valve body 1, a valve seat 3 fixedly connected to the front surface of the valve body 1, a valve cover 2 inserted into the front end face of the valve seat 3, two flow channels 9 are opened on the inner side of the valve body 1 and the valve seat 3, a sliding plate 10 is slidably inserted into the inner wall of the upper flow channel 9 along the vertical direction, an opening 11 adapted to the shape of the inner wall of the flow channel 9 is opened on the outer surface of the sliding plate 10, a moving plate 12 extending backward is fixedly connected to the lower side of the rear surface of the sliding plate 10, the moving plate 12 slides through the inner side of the valve seat 3, a bent plate 13 extends to one side from the rear end of the moving plate 12, an insert block 18 is fixedly connected to one side of the rear surface of the valve cover 2, an inclined groove 25 is opened on the lower surface of the insert block 18, a flat groove 26 extending forward is opened on the inner top surface of the inclined groove 25, and the bent plate 13 slides into the inner side of the flat groove 26.

[0037] When the valve cover 2 is disassembled, the insert block 18 moves forward, the bending plate 13 moves backward along the inner side of the flat groove 26 and slides out through the inclined groove 25. The bending plate 13 descends, causing the sliding plate 10 to descend. After moving down, a groove is formed on the inner bottom surface of the upper flow channel 9.

[0038] like Figures 6-11As shown, due to the special setting position of the sliding plate 10, the following scheme is adopted to realize the assembly and processing of the sliding plate 10 and other components. Specifically: the valve seat 3 includes a main seat body 306 fixedly connected to the front surface of the valve body 1. A splicing seat 301 is fixedly embedded on the front surface of the main seat body 306. A flow port 302 adapted to the shape of the inner wall of the upper flow channel 9 is opened through the front surface of the splicing seat 301. A sliding groove 304 is opened on the rear surface of the splicing seat 301. The sliding plate 10 is slidably inserted into the inner side of the sliding groove 304. The rear surface of the sliding plate 10 is in sliding contact with the front surface of the main seat body 306. A through hole 305 is opened on one side of the front surface of the main seat body 306. An insert block 303 is fixedly connected to one side of the rear surface of the splicing seat 301. The insert block 303 is slidably inserted into the inner side of the through hole 305. The moving plate 12 slides through the inner side of the through hole 305, and one side of the moving plate 12 is in sliding contact with the side surface of the insert block 303. During this assembly process, the sliding plate 10 is first attached to the front surface of the main body 306, the moving plate 12 slides in from the side of the through-hole 305, the bending plate 13 is located at the rear of the main body 306, and then the splicing seat 301 is embedded in the front surface of the main body 306, and the insert block 303 is inserted into the inside of the through-hole 305 to ensure that one side of the moving plate 12 is tightly attached to the side surface of the insert block 303 without gaps, thus limiting the lateral sway of the moving plate 12.

[0039] After the splicing base 301 and the main body 306 are fully fitted, a fixed connection method is adopted, preferably laser welding at the joint. This method is suitable for smooth surfaces, seamless joints, and meets the food-grade hygiene requirements for toothpaste production. After welding, the splicing surface is polished to make it flush and smooth with the overall surface, without any protrusions or depressions, completely eliminating gaps at the joint and preventing toothpaste residue and bacterial growth.

[0040] The main body 306 and the splicing base 301 both have a first socket 19 on one side. The plug 18 slides into the inside of the first socket 19 and then combines... Figure 2 , Figure 3 As shown, a second socket 20 is provided on the other side of the main body 306. A locking block 21 is fixedly connected to the rear end face of the valve cover 2, away from the plug 18. The locking block 21 is slidably inserted into the inner side of the second socket 20. The upper surfaces of the locking block 21 and the plug 18 are respectively provided with locking mechanisms. During the assembly of the valve cover 2, the plug 18 and the locking block 21 are respectively inserted into the inner sides of the first socket 19 and the second socket 20, which can complete the quick assembly.

[0041] The locking mechanism includes recessed grooves 22 respectively formed on the upper surfaces of the locking block 21 and the insert block 18. A rotating shaft 24 is rotatably fitted inside the recessed groove 22, and a rotating plate 23 is fixedly connected to the outer surface of the rotating shaft 24. The front edge of the rotating plate 23 abuts against the rear surface of the valve seat 3. The front edge of the rotating plate 23 abuts against the rear surface of the valve seat 3, and the abutting force forms a reverse limit, thereby achieving a firm lock between the valve cover 2 and the valve seat 3, ensuring the compression and sealing effect of the diaphragm 4, and taking into account both locking reliability and ease of disassembly and assembly.

[0042] like Figure 12 , Figure 13 As shown, the front end face of the insert block 18 is provided with an inclined guide surface 27. By providing the inclined guide surface 27, when the valve cover 2 is closed, it is not necessary to move the bending plate 13 to the bottom, thus optimizing the closing steps of the valve cover 2.

[0043] A fixed plate 14 is fixedly connected to the rear of the lower surface of the movable plate 12. Several T-shaped posts 15 slide through the inner side of the fixed plate 14. The front ends of the T-shaped posts 15 are fixedly connected to an anti-slip plate 17. The front surface of the anti-slip plate 17 contacts the rear surface of the valve seat 3. A compression spring 16 is sleeved on the outer surface of the T-shaped posts 15, and the compression spring 16 is located between the anti-slip plate 17 and the fixed plate 14. Under the elastic force of the compression spring 16, the anti-slip plate 17 can press against the rear surface of the valve seat 3, and play a certain limiting role when the movable plate 12 moves up and down to a certain position, which facilitates the maintenance process of wiping with a wiping cloth.

[0044] like Figure 4 , Figure 5As shown, a valve stem 30 is slidably inserted into the inner side of the valve cover 2. A piston 31 is fixedly connected to the front end of the valve stem 30. The piston 31 slides in contact with the inner wall of the valve cover 2. A first air nozzle 28 is fixedly embedded in the middle of the front end face of the valve cover 2. A second air nozzle 29 is fixedly embedded in the edge of the front end face of the valve cover 2. The rear end of the second air nozzle 29 extends to the rear of the piston 31. A valve head 34 is fixedly connected to the rear end of the valve stem 30. A retaining sleeve 32 is fixedly embedded in the middle of the inner side of the valve cover 2. A retaining disc 33 is fixedly sleeved on the outer surface of the valve stem 30. The retaining disc 33 slides into the inner side of the retaining sleeve 32. A pressure block 5 is embedded in the rear end of the valve cover 2. The rear end of the valve head 34 presses against the front surface of the pressure block 5. A diaphragm 4 is provided on the rear surface of the pressure block 5. The diaphragm 4 and the edge of the pressure block 5 are fixedly clamped between the valve seat 3 and the valve cover 2. When it is necessary to block the flow of paste, compressed gas is introduced into front of piston 31 through first air nozzle 28, while gas is discharged behind piston 31 through second air nozzle 29. Under the action of gas pressure difference, piston 31 slides backward along the inner wall of valve cover 2, driving valve stem 30 to move backward synchronously. Valve stem 30 transmits thrust evenly to pressure block 5 through valve head 34, pushing pressure block 5 to move backward. Pressure block 5 then pushes diaphragm 4 to adhere to the inner wall of valve seat 3, achieving precise sealing, blocking the flow of paste in flow channel 9, and completing the valve closing and material control action. During this process, retaining disc 33 slides synchronously along the inner wall of retaining cylinder 32 to ensure smooth movement of valve stem 30 and prevent diaphragm 4 from shifting due to force, which could lead to sealing failure. Conversely, when first air nozzle 28 discharges gas and second air nozzle 29 introduces compressed gas, diaphragm 4 resets, completing the valve opening and material control action.

[0045] like Figure 4 , Figure 5 , Figure 9 , Figure 10 As shown, a reinforcing strip 6 protrudes from the rear surface of the diaphragm 4, and a sealing ring groove 8 is formed along the edge of the front surface of the valve seat 3. Limiting ports 7 are respectively formed on both sides of the front port of the valve seat 3. The rear surface of the diaphragm 4 is embedded in the inner side of the sealing ring groove 8, and the two sides of the reinforcing strip 6 are respectively embedded in the inner side of the limiting ports 7. The limiting ports 7 and the two sides of the reinforcing strip 6 are precisely matched to achieve circumferential positioning of the diaphragm 4 and prevent the diaphragm 4 from shifting when the valve stem 30 is driven.

[0046] After the homogenizer stops working, stop the paste delivery pump, close the isolation valves upstream and downstream of the diaphragm valve to be replaced and maintained, forming an independent maintenance section; open the vacuum breaker valve of the homogenizer, empty the remaining paste in the maintenance section pipeline and valve body 1, and discharge it into a special paste recovery tank (which can be returned and remixed to avoid loss), that is, the remaining paste flows away through the flow channels 9 at the top and bottom.

[0047] By rotating the rotating plate 23 to the inside of the recessed groove 22, the upper surfaces of the insert block 18 and the locking block 21 are made flush. Then, the valve cover 2 can be disassembled by moving forward. During this process, the bending plate 13 moves backward along the inside of the flat groove 26 and slides out through the inside of the inclined groove 25. The bending plate 13 drives the sliding plate 10 to descend. The sliding plate 10 moves down along the inside of the sliding groove 304. After moving down, a groove is formed on the inner bottom surface of the upper flow channel 9. The groove can collect a small amount of residual paste and prevent the paste in the upper flow channel 9 from flowing to the port and dripping near the sealing ring groove 8, which would affect the rapid replacement of the diaphragm 4 and affect the sealing effect at the edge of the diaphragm 4 later.

[0048] After disassembly, use a sterile wiping cloth soaked in food-grade neutral cleaning solution and sterile deionized water to repeatedly wipe the inner wall of the flow channel 9 and the area around the sealing ring groove 8, focusing on removing residual abrasive particles and thickener deposits. When wiping the inside of the flow channel 9, the water flow in the upper flow channel 9 will still be accumulated in the groove, preventing it from dripping directly through the lower end of the flow channel 9, thus playing a protective role and preventing secondary contamination near the sealing ring groove 8. After wiping, place the wiping cloth in the groove, and move the bending plate 13 at the rear upward to make the sliding plate 10 move upward and reset, forming a smooth curved surface in the upper flow channel 9 without grooves. Then wipe away the paste and cleaning water in the groove in time.

[0049] When the bending plate 13 moves upward, the anti-slip plate 17 generates friction with the rear surface of the valve seat 3. Therefore, after releasing the hand, the sliding plate 10 and the moving plate 12 will not fall naturally due to gravity.

[0050] Diaphragm 4 can be directly removed. After replacing diaphragm 4, align reinforcing strip 6 with limiting port 7, place the edge of diaphragm 4 in position corresponding to sealing ring groove 8, then close valve cover 2, insert block 18 into the inner side of first insertion port 19, and lock block 21 into the inner side of second insertion port 20. During insertion, inclined guide surface 27 pushes bent plate 13 downward, then enters the inner side of inclined groove 25, bent plate 13 slides upward, and then moves relative to the flat groove 26 to reset. Then, by rotating the rotating plates 23 on both sides, the rotating plates 23 on both sides are locked onto the rear surface of valve seat 3, thus completing the assembly. During maintenance, the sliding plate 10 is moved and reset by the guidance of inclined guide surface 27, inclined groove 25, and flat groove 26, avoiding the downward movement error of sliding plate 10 caused by wiping and the error caused by manual upward reset, ensuring that a flat and smooth curved surface is formed in the upper flow channel 9 after reset.

[0051] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed invention. The scope of protection claimed by the appended claims and their equivalents is defined.

Claims

1. A smart control device for toothpaste, comprising a valve body (1), characterized in that: A valve seat (3) is fixedly connected to the front surface of the valve body (1). A valve cover (2) is inserted into the front end face of the valve seat (3). Two flow channels (9) are opened on the inner side of the valve body (1) and the valve seat (3). A sliding plate (10) is slidably inserted into the inner wall of the upper flow channel (9) along the vertical direction. An opening (11) is opened on the outer surface of the sliding plate (10) to match the shape of the inner wall of the flow channel (9). A direction is fixedly connected to the lower side of the rear surface of the sliding plate (10). A movable plate (12) extends to the rear and slides through the inner side of the valve seat (3). A bent plate (13) extends to one side from the rear end of the movable plate (12). A plug (18) is fixedly connected to one side of the rear surface of the valve cover (2). A groove (25) is provided on the lower surface of the plug (18). A flat groove (26) extending forward is provided on the inner top surface of the groove (25). The bent plate (13) slides into the inner side of the flat groove (26). When the valve cover (2) is disassembled, the insert (18) moves forward, the bending plate (13) moves backward along the inside of the flat groove (26) and slides out through the inclined groove (25). The bending plate (13) descends, causing the sliding plate (10) to descend. After moving down, a groove is formed on the inner bottom surface of the upper flow channel (9).

2. The intelligent material control device for toothpaste according to claim 1, characterized in that: The valve seat (3) includes a main seat body (306) fixedly connected to the front surface of the valve body (1). A splicing seat (301) is fixedly embedded on the front surface of the main seat body (306). A flow port (302) adapted to the shape of the inner wall of the upper flow channel (9) is opened through the front surface of the splicing seat (301). A sliding groove (304) is opened on the rear surface of the splicing seat (301). The sliding plate (10) is slidably inserted into the inner side of the sliding groove (304). The rear surface of the 0) slides in contact with the front surface of the main body (306). A through-hole (305) is provided on one side of the front surface of the main body (306). An insert (303) is fixedly connected to one side of the rear surface of the splicing seat (301). The insert (303) slides into the inside of the through-hole (305). The moving plate (12) slides through the inside of the through-hole (305), and one side of the moving plate (12) slides in contact with the side surface of the insert (303).

3. The intelligent material control device for toothpaste according to claim 2, characterized in that: The main body (306) and the splicing base (301) are provided with a first socket (19) on one side. The plug (18) is slidably inserted into the inside of the first socket (19). The other side of the main body (306) is provided with a second socket (20). The rear end face of the valve cover (2) and the side away from the plug (18) are fixedly connected with a locking block (21). The locking block (21) is slidably inserted into the inside of the second socket (20). The upper surfaces of the locking block (21) and the plug (18) are respectively provided with a clamping mechanism.

4. The intelligent material control device for toothpaste according to claim 3, characterized in that: The clamping mechanism includes a recessed groove (22) respectively opened on the upper surface of the locking block (21) and the insert block (18). A rotating shaft (24) is rotatably fitted inside the recessed groove (22). A rotating plate (23) is fixedly connected to the outer surface of the rotating shaft (24). The front edge of the rotating plate (23) abuts against the rear surface of the valve seat (3).

5. The intelligent material control device for toothpaste according to claim 1, characterized in that: The front end face of the insert (18) is provided with a sloping guide surface (27).

6. The intelligent material control device for toothpaste according to claim 1, characterized in that: A fixed plate (14) is fixedly connected to the rear side of the lower surface of the movable plate (12). Several T-shaped columns (15) slide through the inner side of the fixed plate (14). The front ends of the several T-shaped columns (15) are fixedly connected to an anti-slip plate (17). The front surface of the anti-slip plate (17) contacts the rear surface of the valve seat (3). A compression spring (16) is sleeved on the outer surface of the T-shaped column (15). The compression spring (16) is located between the anti-slip plate (17) and the fixed plate (14).

7. The intelligent material control device for toothpaste according to claim 1, characterized in that: A valve stem (30) is slidably inserted into the inner side of the valve cover (2). A piston (31) is fixedly connected to the front end of the valve stem (30). The piston (31) slides in contact with the inner wall of the valve cover (2). A first air nozzle (28) is fixedly embedded in the middle of the front end face of the valve cover (2). A second air nozzle (29) is fixedly embedded along the edge of the front end face of the valve cover (2). The rear end of the second air nozzle (29) extends to the rear of the piston (31). A valve head (34) is fixedly connected to the rear end of the valve stem (30). A retaining sleeve (32) is fixedly embedded in the middle of the inner side of the valve cover (2). A retaining disc (33) is fixedly sleeved on the outer surface of the valve stem (30). The retaining disc (33) slides into the inner side of the retaining sleeve (32). A pressure block (5) is embedded in the rear port of the valve cover (2). The rear end of the valve head (34) is pressed on the front surface of the pressure block (5). A diaphragm (4) is provided on the rear surface of the pressure block (5). The edges of the diaphragm (4) and the pressure block (5) are fixedly clamped between the valve seat (3) and the valve cover (2).

8. The intelligent material control device for toothpaste according to claim 7, characterized in that: The rear surface of the diaphragm (4) is provided with a reinforcing strip (6), the front surface edge of the valve seat (3) is provided with a sealing ring groove (8), and the front port of the valve seat (3) is provided with limit ports (7) on both sides. The rear surface of the diaphragm (4) is embedded in the inner side of the sealing ring groove (8), and the two sides of the reinforcing strip (6) are embedded in the inner side of the limit ports (7).

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