A batching device

Abstract

The present application discloses a batching device, which relates to the field of batching technology, and includes a cylinder body and a weighing module. A baffle is provided in the cylinder body, an impeller is rotatably provided in the baffle, a plurality of first flow ports and second flow ports are provided on the baffle, a rotating plate is provided in the first flow port, a slide is slidably provided at the baffle at the second flow port, a transmission assembly for connecting the rotating plate and the slide is provided in the baffle, a valve is provided on the discharge pipe, a reflux pipe is provided on the valve, and the reflux pipe is connected to the baffle. The present application utilizes a reflux pipe, and during the forward rotation of the impeller, part of the liquid material in the valve body is sucked back into the baffle through the reflux pipe, thereby reducing the resistance of the valve stem to the liquid material when the valve stem rises, and improving the quantitative delivery accuracy of the batching device. When the impeller rotates in the reverse direction, the reflux pipe injects the liquid material in the cylinder body into the valve body, thereby improving the discharge speed of the liquid material.

Description

Technical Field

[0001] The present application relates to the technical field of batching, and in particular to a batching device. Background Art

[0002] Batching device is a device used to accurately measure and mix various materials, and is widely used in food, chemical, pharmaceutical and other industries. Batching device can automatically complete the storage, measurement, transportation and mixing of raw materials according to the preset formula to ensure stable product quality.

[0003] At present, the batching device includes a cylinder body, a feed pipe is installed on the top of the cylinder body, a stirring rod is installed in the cylinder body, the liquid material enters the cylinder body from the feed pipe, and the motor drives the stirring rod to rotate and mix the material. A discharge pipe is installed at the bottom of the cylinder body, and a valve is installed on the discharge pipe. The valve controls the valve stem to move downward to open the discharge pipe, and the liquid material is discharged from the discharge pipe. A weighing module is installed at the bottom of the cylinder body. The weighing module measures the weight of the cylinder body to obtain the discharge amount of the liquid material. When the liquid material discharges a specified amount, the weighing module controls the operation of the valve through the controller, and the valve controls the valve stem to move upward to close the discharge pipe, thereby quantitatively conveying the liquid material.

[0004] When the valve stem moves upward to close the discharge pipe, the liquid material stored in the cylinder will exert downward pressure on the valve stem, causing a certain resistance to the rise of the valve stem, causing the valve stem to rise slowly. During this process, a portion of the liquid material will be discharged from the discharge pipe, resulting in poor quantitative delivery accuracy of the batching device. Summary of the invention

[0005] In order to improve the accuracy of quantitative delivery of a batching device, the present application provides a batching device.

[0006] The present application provides a batching device that adopts the following technical solution:

[0007] A batching device comprises a cylinder body and a weighing module, the weighing module is located at the bottom of the cylinder body, a feed pipe is arranged on the top wall of the cylinder body, a discharge pipe is arranged on the bottom wall of the cylinder body, a baffle cover is fixedly arranged in the cylinder body, an impeller is rotatably arranged in the baffle cover, a driving assembly for driving the impeller to rotate is arranged on the cylinder body, a plurality of first flow ports are opened on the peripheral side of the baffle cover above the impeller, the baffle cover is opened below the impeller, a valve is arranged on the discharge pipe, the valve comprises a valve body, a valve stem and a first driving member, the valve body is arranged on the discharge pipe, the valve stem is slidably arranged in the valve body, the first driving member is arranged on the valve body and is used to drive the valve stem to slide to open and close the valve body, a reflux pipe is arranged on the valve body, an end of the reflux pipe away from the valve body passes through the cylinder body and is connected with a side of the baffle cover close to the first flow port.

[0008] By adopting the above technical scheme, liquid material enters the cylinder body from the feed pipe, and the driving component drives the impeller to rotate. During the rotation of the impeller, the liquid material in the cylinder body is sucked into the baffle cover from the first flow port of the baffle cover, and then the liquid material in the baffle cover is discharged from the opening end at the bottom of the baffle cover, so that the liquid material in the cylinder body can be mixed, and the first driving member drives the valve stem to move downward to open the valve, and the liquid material in the cylinder body is discharged from the valve body through the discharge pipe. When the liquid material is discharged in a specified amount, the weighing module controls the operation of the first driving member through the controller, and the first driving member drives the valve stem to rise and close the valve. In this process, the impeller sucks part of the liquid material in the valve body back into the baffle cover through the reflux pipe, thereby reducing the resistance of the valve stem to the liquid material when it rises, thereby improving the quantitative conveying accuracy of the batching device.

[0009] Preferably, the driving assembly includes a second driving member, a first mounting seat and a driving shaft, the first mounting seat is fixedly arranged on the top wall of the cylinder body, the second driving member is arranged on the first mounting seat, the driving shaft is arranged at the driving end of the second driving member, the driving shaft is rotatably arranged in the cylinder body, and the bottom end of the driving shaft extends into the baffle cover and is fixedly connected to the impeller.

[0010] By adopting the above technical solution, the second driving member drives the impeller to rotate through the driving shaft, so that the impeller mixes the liquid material in the cylinder body. The second driving member is installed on the cylinder body through the first mounting seat, so that the second driving member is more stable during operation.

[0011] Preferably, a plurality of mounting posts are fixedly provided at the bottom of the first mounting seat, a mounting plate is fixedly provided at the bottom of the plurality of mounting posts, the baffle is fixedly provided on the bottom wall of the mounting plate, and the drive shaft passes through the mounting plate and extends into the baffle.

[0012] By adopting the above technical solution, the baffle cover is fixedly installed in the cylinder body through the mounting plate and the mounting column, so that the baffle cover is installed more stably in the cylinder body. At the same time, the mounting plate limits the drive shaft, reducing the deflection of the drive shaft, thereby making the impeller rotation more stable.

[0013] Preferably, a rotating plate is rotatably arranged in each first flow opening on the baffle cover, a plurality of second flow openings are provided on the baffle cover below the first flow opening and above the impeller, a plurality of first slide grooves connected to the second flow openings are provided in the baffle cover, a slide plate is slidably arranged in the first slide grooves of the baffle cover, a plurality of transmission components are arranged in the baffle cover, the transmission components are transmission-connected to the rotating plate and the slide plate, and the rotation angle of the rotating plate is proportional to the moving stroke of the slide plate.

[0014] By adopting the above technical solution, during the rotation of the impeller, the liquid material in the cylinder body is sucked into the shield from the first flow port and the second flow port. When the liquid material passes through the first flow port, it will push the rotating plate to rotate. The rotating plate drives the slide plate to slide toward the second flow port through the transmission assembly. When the impeller rotation speed increases, the suction rate of the liquid material in the first flow port increases, the angle at which the liquid material pushes the rotating plate to rotate increases, and the rotating plate drives the slide plate to move a larger stroke through the transmission assembly, so that the diameter of the second flow port is reduced. In this way, the diameter at the second flow port is reduced, so that the amount of liquid material in the valve body sucked into the reflux pipe is larger, thereby further reducing the resistance of the valve stem to the liquid material when it rises, and improving the quantitative delivery accuracy of the batching device.

[0015] Preferably, the transmission assembly includes a first synchronous wheel, a synchronous belt, a second synchronous wheel, a first tension spring, a driving gear, a first rack, a second rack and a switching assembly. The first synchronous wheel is fixedly set on the rotating shaft of the rotating plate, and the second synchronous wheel is rotatably set in the baffle cover. The synchronous belt is sleeved on the first synchronous wheel and the second synchronous wheel. The first rack and the second rack are both slidably set on the top wall of the skateboard along the thickness direction of the skateboard. The driving gear is coaxially set on the second synchronous wheel. The first rack and the second rack are located on both sides of the driving gear. The switching assembly is set in the skateboard and is used to switch the first rack or the second rack to engage with the driving gear.

[0016] By adopting the above technical scheme, when the impeller rotates forward, the switching assembly drives the first rack and the second rack to move, so that the first rack engages with the driving gear and the second rack does not engage with the driving gear, and the impeller sucks the liquid material in the cylinder body from the first flow port and the second flow port into the baffle cover, and the liquid material pushes the turn plate to rotate inside the baffle cover, and the turn plate drives the driving gear to rotate through the first synchronous wheel, the synchronous belt and the second synchronous wheel, and the driving gear drives the slide plate to move through the first rack, thereby reducing the diameter of the second flow port; when the impeller rotates forward and reverse, the switching assembly drives the first rack and the second rack to move, so that the first rack does not engage with the driving gear, and the second rack engages with the driving gear, and the impeller sucks the liquid material in the cylinder body from the bottom opening of the baffle cover into the baffle cover, and then discharges the baffle cover from the first flow port and the second flow port, and the liquid material pushes the turn plate to rotate outside the baffle cover. Similarly, the driving gear drives the slide plate to move through the second gear, thereby reducing the diameter of the second flow port. With such arrangement, the forward and reverse rotation of the impeller can adjust the moving stroke of the slide plate by the rotation angle of the turn plate. During the discharge of liquid material, the impeller rotates in the reverse direction, and the impeller sucks the liquid material in the cylinder into the baffle from the bottom opening of the baffle, and then injects it into the valve body from the reflux pipe, thereby accelerating the discharge speed of the liquid material. When the discharge amount of the liquid material is close to the specified amount, the impeller rotates forward again.

[0017] Preferably, the switching assembly includes a first lifting member, a second lifting member and an elastic member, the first lifting member and the second lifting member are both arranged in the slide, the first lifting member is located below the first rack, the top end of the lifting end of the first lifting member and the bottom end of the first rack are both arranged in a wedge shape, when the lifting end of the first lifting member rises, it drives the first rack to move and engage the driving gear, the second lifting member is located below the second rack, the top end of the lifting end of the second lifting member and the bottom end of the second rack are both arranged in a wedge shape, when the lifting end of the second lifting member rises, it drives the second rack to move and engage the driving gear, the two ends of the elastic member are connected to the first rack and the second rack, and the elastic member is used to push the first rack and the second rack to move away from each other.

[0018] By adopting the above technical solution, when the impeller rotates forward, the lifting end of the first lifting member moves upward, and the lifting end of the first lifting member pushes the first rack to move toward the driving gear through the wedge-shaped end, so that the first rack is meshed with the driving gear. At this time, the lifting end of the second lifting member moves downward, and the elastic member pushes the second rack to move and separates the second rack from the driving gear, so that the driving gear drives the slide plate to move through the first rack. Similarly, when the impeller rotates reversely, the lifting end of the second lifting member moves upward, and the lifting end of the first lifting member moves downward, so that the driving gear drives the slide plate to move through the second rack.

[0019] Preferably, a plurality of second sliding grooves are provided on the top wall of the slide plate along its thickness direction, the first rack and the second rack are both slidably arranged in the second sliding grooves, guide blocks are fixedly arranged on the opposite side walls of the first rack and the second rack along the direction of their own movement, guide grooves are provided on the opposite inner side walls of the second sliding groove on the slide plate, and the guide blocks are slidably arranged in the guide grooves.

[0020] By adopting the above technical solution, the first rack and the second rack slide in the second sliding groove of the slide plate, and the first rack and the second rack drive the guide block to slide in the guide groove during the sliding process, and the guide block and the guide groove cooperate to guide the movement of the first rack and the second rack, thereby making the movement of the first rack and the second rack more stable.

[0021] The cam is provided with a first end fixedly connected to the bottom end of the valve body, and a second end fixedly connected to the bottom end of the valve body by the second spring, the second end of the valve body being connected to the valve body and the second end of the valve body being connected to the valve body.

[0022] By adopting the above technical scheme, when the impeller reverses, the liquid material in the baffle is injected into the valve body through the reflux pipe, and part of the liquid material in the reflux pipe enters the pressure chamber from the shunt pipe, and the liquid material pushes the multiple push plates to move and extend out of the lower rod body. At this time, the liquid material flowing in the valve body pushes the lower rod body to move downward through the multiple push plates, and the lower rod body pulls the second tension spring to extend through the auxiliary rod body, and the auxiliary rod body moves to the discharge port of the valve body, thereby increasing the discharge area at the valve body discharge port and further improving the discharge speed of the liquid material; when the impeller rotates forward, the liquid material in the pressure chamber is sucked into the reflux pipe through the shunt pipe, and the pressure chamber sucks the multiple push plates back into the lower rod body, and the second tension spring drives the lower rod body to rise and reset through the auxiliary rod body, thereby facilitating the closing of the valve.

[0023] In summary, the present application includes at least one of the following beneficial technical effects:

[0024] 1. By using the reflux pipe, the liquid material enters the cylinder from the feed pipe, and the driving assembly drives the impeller to rotate. During the rotation of the impeller, the liquid material in the cylinder is sucked into the baffle from the first flow port of the baffle, and then the liquid material in the baffle is discharged from the opening end at the bottom of the baffle. In this process, the impeller sucks part of the liquid material in the valve body back into the baffle through the reflux pipe, thereby reducing the resistance of the valve stem to the liquid material when it rises, and improving the quantitative conveying accuracy of the batching device;

[0025] 2. With the help of the rotating plate and the sliding plate, the moving stroke of the sliding plate can be adjusted by the rotating angle of the rotating plate when the impeller rotates forward and backward. During the discharge of liquid materials, the impeller rotates in the opposite direction, and the impeller sucks the liquid materials in the cylinder into the baffle cover from the bottom opening of the baffle cover, and then injects them into the valve body from the reflux pipe, thereby accelerating the discharge speed of the liquid materials;

[0026] 3. Through the shunt pipe and the push plate, when the impeller reverses, the liquid material in the baffle is injected into the valve body through the reflux pipe, and part of the liquid material in the reflux pipe enters the pressure chamber from the shunt pipe, and the liquid material pushes the multiple push plates to move and extend out of the lower rod body. At this time, the liquid material flowing in the valve body pushes the lower rod body to move downward through the multiple push plates, and the lower rod body pulls the second tension spring to extend through the sub-rod body, and the sub-rod body moves to the discharge port of the valve body, thereby increasing the discharge area at the valve body discharge port and further improving the discharge speed of the liquid material. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 This is a schematic diagram of the overall structure of the batching device in Example 1 of the present application;

[0028] Figure 2 This is a schematic diagram of the overall structure of the batching device in Example 2 of the present application;

[0029] Figure 3 This is a schematic diagram of a portion of the structure of the batching device in Example 2 of the present application, highlighting the shield;

[0030] Figure 4 This is a partial structural cross-sectional view of the batching device in Example 2 of the present application to highlight the shield;

[0031] Figure 5 This application Figure 4 The enlarged schematic diagram at A in the middle;

[0032] Figure 6 This is a cross-sectional view of a portion of the structure of the batching device in Example 2 of the present application, highlighting the first tension spring;

[0033] Figure 7 This application Figure 6 The enlarged schematic diagram of point B in the middle;

[0034] Figure 8 This is a partial structural cross-sectional view of the batching device in Example 2 of the present application to highlight the switching component;

[0035] Fig. 9 This is a schematic diagram of a portion of the structure of the batching device in Example 2 of the present application, highlighting the valve;

[0036] Fig.10 This is a cross-sectional view of a portion of the structure of the batching device in Example 2 of the present application, highlighting the valve stem;

[0037] Fig.11 This application Fig.10 The enlarged schematic diagram at C in the middle;

[0038] Fig.12 This is a partial structural cross-sectional view of the batching device in Example 2 of the present application to highlight the pressure chamber.

[0039] 1. Cylinder; 2. Weighing module; 3. Feed pipe; 4. Discharge pipe; 5. Shield; 6. Impeller; 7. Drive assembly; 71. Second drive member; 72. First mounting seat; 73. Drive shaft; 8. First flow port; 9. Valve; 91. Valve body; 92. Valve stem; 921. Upper rod body; 922. Lower rod body; 923. Auxiliary rod body; 924. Valve head; 925. Second tension spring; 93. First drive member; 10. Return pipe; 11. Mounting column; 12. Mounting plate; 13. Turning plate; 14. Second flow port; 15. First slide groove; 16. Slide plate; 17. Transmission assembly; 171. First synchronous wheel; 172. Synchronous belt; 173. Second synchronous Wheel; 174, first tension spring; 175, driving gear; 176, first rack; 177, second rack; 178, switching assembly; 1781, first lifting member; 1782, second lifting member; 1783, elastic member; 18, second slide groove; 19, guide block; 20, guide groove; 21, third slide groove; 22, shunt pipe; 221, first tube body; 222, second tube body; 23, pressure chamber; 24, push plate; 25, pneumatic angle seat valve; 26, abutment block; 27, second mounting seat; 28, discharge port; 29, first piston; 30, second piston; 31, connecting shaft; 32, accommodating groove; 33, first wedge-shaped push block; 34, second wedge-shaped push block. DETAILED DESCRIPTION

[0040] The following is combined with Figure 1-Figure 12 This application is described in further detail.

[0041] Embodiment 1:

[0042] The embodiment of the present application discloses a batching device.

[0043] Reference Figure 1 A batching device includes a cylinder 1 and a weighing module 2. A feed pipe 3 is fixedly mounted on the top wall of the cylinder 1, and a pneumatic angle seat valve 25 is mounted on the feed pipe 3. A discharge pipe 4 is fixedly mounted on one side of the bottom wall of the cylinder 1, and a valve 9 is mounted on the end of the discharge pipe 4 away from the cylinder 1. After the pneumatic angle seat valve 25 is opened, liquid material can enter the cylinder 1 through the feed pipe 3, and after the valve 9 is opened, the liquid material in the cylinder 1 can be discharged through the discharge pipe 4.

[0044] The bottom wall of the cylinder body 1 is tilted, and the depth of the cylinder body 1 on the side close to the discharge pipe 4 is greater than the depth of the side away from the discharge pipe 4, so that when the liquid material is discharged from the discharge pipe 4, it is not easy for the material to precipitate on the bottom wall of the cylinder body 1. An abutment block 26 is fixedly installed in the middle of the bottom wall of the cylinder body 1, and the bottom wall of the abutment block 26 is horizontally arranged. The weighing module 2 is located at the bottom wall of the cylinder body 1, and the top wall of the weighing module 2 abuts the bottom wall of the abutment block 26, and the weighing module 2 is electrically connected to the valve 9 through the controller. The weighing module 2 weighs the cylinder body 1. When the liquid material is discharged in a specified amount, the weighing module 2 controls the valve 9 to close through the controller, so that the specified amount of liquid material can be accurately discharged.

[0045] A driving assembly 7 is installed on the cylinder body 1, and the driving assembly 7 includes a second driving member 71, a first mounting seat 72 and a driving shaft 73. The first mounting seat 72 is fixedly mounted on the top wall of the cylinder body 1, and the second driving member 71 is fixedly mounted on the top of the first mounting seat 72. The driving shaft 73 is rotatably mounted in the first mounting seat 72 through a bearing, and the bottom end of the driving shaft 73 extends into the cylinder body 1. The top end of the driving shaft 73 is fixedly connected to the driving end of the second driving member 71 through a coupling. In the present application, the second driving member 71 can be selected as a servo motor.

[0046] Four mounting posts 11 are fixedly mounted at equal intervals along the circumference of the drive shaft 73 at the bottom of the first mounting seat 72. The mounting posts 11 are located in the cylinder body 1. A mounting plate 12 is fixedly mounted at the bottom ends of the four mounting posts 11. A cylindrical baffle 5 is fixedly mounted on the bottom wall of the mounting plate 12. The bottom end of the drive shaft 73 passes through the mounting plate 12 and extends into the baffle 5. An impeller 6 is fixedly mounted at the bottom end of the drive shaft 73. The baffle 5 is located above the impeller 6 and has multiple first flow openings 8 at equal intervals along its own circumference. The end of the baffle 5 located below the impeller 6 is open.

[0047] The second driving member 71 drives the impeller 6 to rotate in the forward direction via the driving shaft 73. During the forward rotation of the impeller 6, the liquid material in the cylinder body 1 is sucked into the baffle 5 from the first flow port 8. The impeller 6 then discharges the liquid material in the baffle 5 from the opening at its bottom end, so that the impeller 6 can mix the liquid material in the cylinder body 1 to prevent the liquid material from settling in the cylinder body 1.

[0048] The valve 9 includes a valve body 91, a valve stem 92 and a first driving member 93. The valve body 91 is fixedly mounted on the end of the discharge pipe 4 away from the cylinder body 1. The second mounting seat 27 is fixedly mounted on the top of the valve body 91. The first driving member 93 is fixedly mounted on the top and bottom walls of the second mounting seat 27. The valve stem 92 is fixedly mounted on the driving end of the first driving member 93, and the valve stem 92 is slidably mounted in the valve body 91. In the present application, the first driving member 93 can be selected as a cylinder, and the first driving member 93 is electrically connected to the weighing module 2 through a controller.

[0049] When the first driving member 93 drives the valve stem 92 to move downward, the valve stem 92 releases the blockage on the valve body 91, and the liquid material can be discharged through the discharge port 28 of the valve body 91. When the first driving member 93 drives the valve stem 92 to move upward, the valve stem 92 blocks the discharge port 28 of the valve body 91, thereby preventing the discharge of the liquid material.

[0050] A return pipe 10 is installed on the valve body 91. One end of the return pipe 10 away from the valve body 91 passes through the cylinder 1 and enters the baffle 5 from the first flow port 8, and the end of the return pipe 10 is located above the impeller 6. When the first driving member 93 drives the valve stem 92 to rise and close the valve 9, the impeller 6 sucks part of the liquid material in the valve body 91 back into the baffle 5 through the return pipe 10, thereby reducing the resistance of the valve stem 92 to the liquid material when it rises, thereby improving the quantitative delivery accuracy of the batching device.

[0051] The implementation principle of a dosing device in an embodiment of the present application is as follows: liquid material enters the cylinder body 1 from the feed pipe 3, and the second driving member 71 drives the impeller 6 to rotate forwardly through the driving shaft 73. During the forward rotation of the impeller 6, the liquid material in the cylinder body 1 is sucked into the baffle 5 from the first flow port 8 of the baffle 5, and then the liquid material in the baffle 5 is discharged from the opening end at the bottom of the baffle 5, so that the liquid material in the cylinder body 1 can be mixed, and the first driving member 93 drives the valve stem 92 to move downward to open the valve 9, and the liquid material in the cylinder body 1 is discharged from the valve body 91 through the discharge pipe 4. When the liquid material is discharged in a specified amount, the weighing module 2 controls the operation of the first driving member 93 through the controller, and the first driving member 93 drives the valve stem 92 to rise and close the valve 9. In this process, the impeller 6 sucks part of the liquid material in the valve body 91 back into the baffle 5 through the reflux pipe 10, thereby reducing the resistance of the valve stem 92 to the liquid material when it rises, thereby improving the quantitative conveying accuracy of the dosing device.

[0052] Embodiment 2:

[0053] Reference Figure 2 , Figure 3 and Figure 4 The difference between the embodiment of the present application and the embodiment 1 is that the shield 5 is rectangular, and has four first flow openings 8, which are respectively opened on the four walls of the shield 5. Second flow openings 14 are opened on the four walls of the shield 5 below the four first flow openings 8, and the four second flow openings 14 are all located above the impeller 6.

[0054] Reference Figure 4 and Figure 5The shield 5 is provided with a rotating plate 13 rotatably mounted on the top wall of each first flow opening 8, and the shield 5 is provided with a first slide groove 15 on the top wall of each of the four second flow openings 14. The shield 5 is provided with a slide plate 16 slidably mounted in the vertical direction in the first slide groove 15. When the slide plate 16 moves downward, the bottom end of the slide plate 16 can enter the second flow opening 14 and reduce the diameter of the second flow opening 14.

[0055] A transmission assembly 17 is installed in each side wall of the shield 5, and the transmission assembly 17 is connected to the rotating plate 13 and the slide plate 16. When the rotating plate 13 rotates, the rotating plate 13 can drive the slide plate 16 to slide through the transmission assembly 17, and the rotation angle of the rotating plate 13 is proportional to the moving stroke of the slide plate 16.

[0056] Reference Figure 5 , Figure 6 , Figure 7 and Figure 8 Specifically, the transmission assembly 17 includes two first synchronous wheels 171, a synchronous belt 172, a second synchronous wheel 173, a first tension spring 174, a driving gear 175, a first rack 176, a second rack 177 and a switching assembly 178. The two first synchronous wheels 171 are fixedly mounted on both ends of the rotating shaft of the rotating plate 13 and are rotatably mounted in the blocking cover 5, the two second synchronous wheels 173 are rotatably mounted in the blocking cover 5 and are located above both sides of the length direction of the slide plate 16, and the synchronous belt 172 is rotatably sleeved on the first synchronous wheels 171 and the second synchronous wheels 173.

[0057] The retaining cover 5 is provided with receiving grooves 32 on both sides of the length direction of each rotating plate 13, and the first synchronous wheel 171, the synchronous belt 172 and the second synchronous wheel 173 are all located in the receiving grooves 32. The diameter of the first synchronous wheel 171 is larger than the diameter of the second synchronous wheel 173, and the two driving gears 175 are coaxially fixedly installed on the side walls of the two second synchronous wheels 173 close to each other through two connecting shafts 31. When the rotating plate 13 rotates, the rotating plate 13 drives the driving gear 175 to rotate through the first synchronous wheel 171, the synchronous belt 172 and the second synchronous wheel 173.

[0058] Two first tension springs 174 are installed in the first slide groove 15 of the shield 5. The top end of the first tension spring 174 is fixedly connected to the top wall of the first slide groove 15, and the bottom end is fixedly connected to the top wall of the slide plate 16. Two second slide grooves 18 are provided at intervals along the thickness direction of the slide plate 16 at both ends along its length direction. The first rack 176 and the second rack 177 are slidably installed in the two second slide grooves 18 along the thickness direction of the slide plate 16, and the driving gear 175 is located between the first rack 176 and the second rack 177. Two switching components 178 are installed in both ends of the top wall of the slide plate 16 along the length direction of the slide plate 16, and one switching component 178 connects a group of the first rack 176 and the second rack 177.

[0059] When the second driving member 71 drives the impeller 6 to rotate forward, the switching assembly 178 drives the first rack 176 to move toward the driving gear 175 and meshes the first rack 176 with the driving gear 175, and the switching assembly 178 drives the second rack 177 to move away from the driving gear 175 and disengages the second rack 177 from the driving gear 175. The impeller 6 sucks the liquid material in the cylinder body 1 into the baffle 5 from the first flow port 8 and the second flow port 14, and the liquid material pushes the rotating plate 13 to rotate into the baffle 5. The rotating plate 13 drives the driving gear 175 to rotate through the first synchronous wheel 171, the synchronous belt 172 and the second synchronous wheel 173, and the driving gear 175 drives the slide plate 16 to move through the first rack 176, so that the diameter of the second flow port 14 can be reduced.

[0060] When the rotation speed of the impeller 6 increases, the suction rate of the liquid material in the first flow port 8 increases, the liquid material pushes the rotating plate 13 to rotate at an increased angle, and the rotating plate 13 drives the slide plate 16 to move a larger stroke through the transmission assembly 17, so that the diameter of the second flow port 14 is reduced, so that the reflux pipe 10 sucks a larger amount of liquid material into the valve body 91, thereby further reducing the resistance of the valve stem 92 to the liquid material when it rises, thereby improving the quantitative delivery accuracy of the batching device.

[0061] When the second driving member 71 drives the impeller 6 to rotate in the opposite direction, the switching assembly 178 drives the first rack 176 to move away from the driving gear 175 and disengage the first rack 176 from the driving gear 175, and the switching assembly 178 drives the second rack 177 to move toward the driving gear 175 and engages the second rack 177 with the driving gear 175. The impeller 6 sucks the liquid material in the cylinder body 1 into the baffle 5 from the bottom opening of the baffle 5, and then discharges the baffle 5 from the first flow port 8 and the second flow port 14. The liquid material pushes the rotating plate 13 to rotate outside the baffle 5. The rotating plate 13 drives the driving gear 175 to rotate through the first synchronous wheel 171, the synchronous belt 172 and the second synchronous wheel 173. The driving gear 175 drives the slide plate 16 to move through the second rack 177, so that the diameter of the second flow port 14 can be reduced.

[0062] During the discharge of liquid materials, the impeller 6 rotates in the reverse direction, and the impeller 6 sucks the liquid materials in the cylinder body 1 into the baffle 5 from the bottom opening of the baffle 5, and then injects it into the valve body 91 from the return pipe 10, so as to accelerate the discharge speed of the liquid materials. When the discharge amount of the liquid materials is close to the specified amount, the impeller 6 rotates forward again. The forward and reverse rotation of the impeller 6 can adjust the movement stroke of the slide plate 16 by the rotation angle of the rotating plate 13. During the discharge of liquid materials, the discharge speed of the liquid materials can be accurately controlled by using the forward or reverse rotation of the impeller 6 and adjusting the rotation speed of the impeller 6.

[0063] Reference Figure 8 The switching assembly 178 includes a first lifting member 1781, a second lifting member 1782 and an elastic member 1783. The first lifting member 1781 is installed in the slide plate 16 and is located below the first rack 176. The lifting end of the first lifting member 1781 is fixedly installed with a first wedge-shaped push block 33. The top end of the first wedge-shaped push block 33 abuts against the bottom end of the first rack 176. When the lifting end of the first lifting member 1781 rises, the first lifting member 1781 can drive the first rack 176 to move toward the driving gear 175 through the first wedge-shaped push block 33.

[0064] The second lifting member 1782 is installed in the slide plate 16 and is located below the second rack 177. The lifting end of the second lifting member 1782 is fixedly installed with a second wedge-shaped push block 34. The top end of the second wedge-shaped push block 34 abuts against the bottom end of the second rack 177. When the lifting end of the second lifting member 1782 rises, the second lifting member 1782 can drive the second rack 177 to move toward the driving gear 175 through the second wedge-shaped push block 34. In the present application, both the first lifting member 1781 and the second lifting member 1782 can be selected as micro cylinders.

[0065] The first rack 176 and the second rack 177 are fixedly mounted with guide blocks 19 on the opposite side walls perpendicular to their own moving directions. The slide plate 16 is provided with guide grooves 20 on the side walls in the width direction of the second slide groove 18. The guide blocks 19 are slidably mounted in the guide grooves 20 along the sliding direction of the first rack 176. During the movement of the first rack 176 and the second rack 177, the guide blocks 19 move in the guide grooves 20, so as to guide and limit the movement of the first rack 176 and the second rack 177, so that the movement of the first rack 176 and the second rack 177 is more stable. The elastic member 1783 is installed in the slide plate 16, and the two ends of the elastic member 1783 are respectively fixedly connected to the first rack 176 and the second rack 177. In the present application, the elastic member 1783 can be selected as a spring, and the elastic member 1783 is in an elastically compressed state.

[0066] When the second driving member 71 drives the impeller 6 to rotate in the forward direction, the lifting end of the first lifting member 1781 moves upward and causes the first rack 176 to move to engage the driving gear 175, and the lifting end of the second lifting member 1782 moves downward. At this time, the elastic member 1783 pushes the second rack 177 to move away from the driving gear 175, thereby allowing the second rack 177 to move away from the driving gear 175.

[0067] When the second driving member 71 drives the impeller 6 to rotate in the opposite direction, the lifting end of the second lifting member 1782 moves upward and causes the second rack 177 to move to engage the driving gear 175, and the lifting end of the first lifting member 1781 moves downward. At this time, the elastic member 1783 pushes the first rack 176 to move away from the driving gear 175, thereby allowing the first rack 176 to move away from the driving gear 175.

[0068] Reference Fig. 9 and Fig.10 The valve stem 92 includes an upper rod body 921, a lower rod body 922, a secondary rod body 923, a valve head 924 and a second tension spring 925. The top end of the upper rod body 921 is fixedly connected to the driving end of the first driving member 93, and a third slide groove 21 is provided in the middle of the bottom end of the upper rod body 921 along its own axial direction. The secondary rod body 923 is coaxially fixedly installed in the middle of the top wall of the lower rod body 922, the diameter of the secondary rod body 923 is smaller than the diameter of the lower rod body 922, and the valve head 924 is fixedly installed at the bottom end of the lower rod body 922.

[0069] The second tension spring 925 is installed in the third slide groove 21 of the upper rod body 921, and the auxiliary rod body 923 is slidably installed in the third slide groove 21 of the upper rod body 921. The top end of the second tension spring 925 is fixedly connected to the top wall of the third slide groove 21, and the bottom end is fixedly connected to the top end of the auxiliary rod body 923. The lower rod body 922 is slidably installed on the bottom end of the upper rod body 921 through the auxiliary rod body 923.

[0070] The shunt pipe 22 is connected to the return pipe 10, and the end of the shunt pipe 22 away from the return pipe 10 is connected to the valve stem 92. The shunt pipe 22 includes a first tube body 221 and a second tube body 222. The first tube body 221 is connected to the return pipe 10, and the second tube body 222 is connected to the end of the first tube body 221 away from the return pipe 10. The end of the second tube body 222 away from the first tube body 221 passes through the upper rod body 921, the third slide groove 21, and the auxiliary rod body 923 and extends into the lower rod body 922. In the present application, the first tube body 221 can be selected as a hard tube, and the second tube body 222 can be selected as a soft telescopic tube.

[0071] Reference Fig.10 , Fig.11 and Fig.12 A pressure chamber 23 is provided in the top of the lower rod 922, and one end of the second tube 222 away from the first tube 221 is connected to the pressure chamber 23. Four push plates 24 are installed in the lower rod 922 at equal intervals along its circumference, and each push plate 24 is slidably installed along the diameter direction of the lower rod 922. A first piston 29 is fixedly installed on one side of the push plate 24 close to the pressure chamber 23, and the first piston 29 is located in the pressure chamber 23. A second piston 30 is slidably installed in the first tube 221 along its own axial direction, and a medium solution is stored in the first tube 221 and the second tube 222.

[0072] When the impeller 6 is reversed, the liquid material in the shield 5 is injected into the valve body 91 through the reflux pipe 10, and part of the liquid material in the reflux pipe 10 enters the first tube 221 and pushes the second piston 30 to move toward the second tube 222. The second piston 30 squeezes the medium solution into the pressure chamber 23, and the medium solution pushes the four push plates 24 to move out of the lower rod 922 through the four first pistons 29. At this time, the liquid material flowing out of the valve body 91 pushes the lower rod 922 to move downward through the four push plates 24, and the lower rod 922 moves to the outside of the discharge port 28 of the valve body 91, and the lower rod 922 drives the auxiliary rod 923 to move, and the auxiliary rod 923 pulls the second tension spring 925 to extend. The auxiliary rod 923 moves to the discharge port 28 of the valve body 91, thereby increasing the area that can be discharged at the discharge port 28 of the valve body 91, and further improving the discharge speed of the liquid material.

[0073] When the impeller 6 rotates forward, the liquid material in the first tube body 221 is sucked into the return pipe 10 and drives the second piston 30 to move away from the second tube body 222. The second piston 30 sucks the medium solution in the pressure chamber 23 into the second tube body 222 and drives the four push plates 24 to move into the lower rod body 922 through the first piston 29. At this time, the second tension spring 925 pulls the auxiliary rod body 923 to move into the third chute 21, and the auxiliary rod body 923 drives the lower rod body 922 to move into the discharge port 28 of the valve body 91, thereby facilitating the closing of the valve 9.

[0074] The implementation principle of the second embodiment of the present application is as follows: when the second driving member 71 drives the impeller 6 to rotate in the forward direction, the lifting end of the first lifting member 1781 moves upward and causes the first rack 176 to move and engage the driving gear 175, the lifting end of the second lifting member 1782 moves downward, and the elastic member 1783 pushes the second rack 177 to move away from the driving gear 175, so that the second rack 177 can move away from the driving gear 175. The impeller 6 sucks the liquid material in the cylinder body 1 into the baffle 5 from the first flow port 8 and the second flow port 14, and the liquid material pushes the rotating plate 13 to rotate into the baffle 5. The rotating plate 13 drives the driving gear 175 to rotate through the first synchronous wheel 171, the synchronous belt 172 and the second synchronous wheel 173, and the driving gear 175 drives the slide plate 16 to move through the first rack 176, so that the diameter of the second flow port 14 can be reduced.

[0075] When the rotation speed of the impeller 6 increases, the suction rate of the liquid material in the first flow port 8 increases, the angle at which the liquid material drives the rotating plate 13 to rotate increases, and the rotating plate 13 drives the sliding plate 16 to move a larger stroke through the transmission assembly 17, so that the diameter of the second flow port 14 decreases. In this way, the amount of liquid material sucked into the valve body 91 by the reflux pipe 10 per unit time is larger, thereby further reducing the resistance of the valve stem 92 to the liquid material when it rises, and improving the quantitative conveying accuracy of the batching device.

[0076] When the second driving member 71 drives the impeller 6 to rotate in the opposite direction, the lifting end of the second lifting member 1782 moves upward and causes the second rack 177 to move and engage the driving gear 175, and the lifting end of the first lifting member 1781 moves downward. At this time, the elastic member 1783 pushes the first rack 176 to move away from the driving gear 175, so that the first rack 176 can move away from the driving gear 175. The impeller 6 sucks the liquid material in the cylinder body 1 into the shield 5 from the bottom opening of the shield 5, and then discharges the shield 5 from the first flow port 8 and the second flow port 14. The liquid material pushes the rotating plate 13 to rotate outside the shield 5. The rotating plate 13 drives the driving gear 175 to rotate through the first synchronous wheel 171, the synchronous belt 172 and the second synchronous wheel 173. The driving gear 175 drives the slide plate 16 to move through the second rack 177, so that the diameter of the second flow port 14 can be reduced.

[0077] During the discharge of liquid material, the impeller 6 rotates in the reverse direction, and the impeller 6 sucks the liquid material in the cylinder body 1 into the baffle 5 from the bottom opening of the baffle 5, and then injects it into the valve body 91 from the reflux pipe 10, thereby accelerating the discharge speed of the liquid material. When the discharge amount of the liquid material is close to the specified amount, the impeller 6 rotates forward again and reduces the resistance of the valve stem 92 to the liquid material when it rises.

[0078] The forward and reverse rotation of the impeller 6 can adjust the movement stroke of the slide plate 16 by the rotation angle of the rotating plate 13. During the discharge process of the liquid material, the discharge speed of the liquid material can be accurately controlled by using the forward or reverse rotation of the impeller 6 and adjusting the rotation speed of the impeller 6.

[0079] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A batching device, characterized in that: The invention comprises a cylinder body (1) and a weighing module (2), wherein the weighing module (2) is located at the bottom of the cylinder body (1), a feed pipe (3) is arranged on the top wall of the cylinder body (1), a discharge pipe (4) is arranged on the bottom wall of the cylinder body (1), a baffle (5) is fixedly arranged in the cylinder body (1), an impeller (6) is rotatably arranged in the baffle (5), a drive assembly (7) for driving the impeller (6) to rotate is arranged on the cylinder body (1), a plurality of first flow openings (8) are opened on the peripheral side of the baffle (5) located above the impeller (6), the baffle (5) is opened below the impeller (6), a valve (9) is arranged on the discharge pipe (4), and the valve (9) comprises a valve body (91), a valve stem (92) and a first drive assembly (7). The valve body (91) is provided on the discharge pipe (4), the valve stem (92) is slidably provided in the valve body (91), the first driving member (93) is provided on the valve body (91) and is used to drive the valve stem (92) to slide and open and close the valve body (91), the valve body (91) is provided with a return pipe (10), the end of the return pipe (10) away from the valve body (91) passes through the cylinder body (1) and is connected to the side of the baffle cover (5) close to the first flow port (8); a rotating plate (13) is rotatably provided in each first flow port (8) on the baffle cover (5), a plurality of second flow ports (14) are provided on the baffle cover (5) below the first flow port (8) and above the impeller (6), the baffle cover (5) ) is provided with a plurality of first slide grooves (15) connected with the second flow port (14); the blocking cover (5) is located in the first slide grooves (15) and a slide plate (16) is slidably provided; a plurality of transmission components (17) are provided in the blocking cover (5); the transmission components (17) are transmission-connected to the rotating plate (13) and the slide plate (16); the rotation angle of the rotating plate (13) is proportional to the movement stroke of the slide plate (16); the transmission component (17) comprises a first synchronous wheel (171), a synchronous belt (172), a second synchronous wheel (173), a first tension spring (174), a driving gear (175), a first rack (176), a second rack (177) and a switching component (178); the first synchronous wheel (171) is fixed The rotating shaft of the rotating plate (13) is arranged, the second synchronous wheel (173) is rotatably arranged in the blocking cover (5), the synchronous belt (172) is sleeved on the first synchronous wheel (171) and the second synchronous wheel (173), the first rack (176) and the second rack (177) are both slidably arranged on the top wall of the slide plate (16) along the thickness direction of the slide plate (16), the driving gear (175) is coaxially arranged on the second synchronous wheel (173), the first rack (176) and the second rack (177) are located on both sides of the driving gear (175), and the switching component (178) is arranged in the slide plate (16) and is used to switch the first rack (176) or the second rack (177) to mesh with the driving gear (175);The switching assembly (178) comprises a first lifting member (1781), a second lifting member (1782) and an elastic member (1783). The first lifting member (1781) and the second lifting member (1782) are both arranged in the slide plate (16). The first lifting member (1781) is located below the first rack (176). The top end of the lifting end of the first lifting member (1781) and the bottom end of the first rack (176) are both arranged in a wedge shape. When the lifting end of the first lifting member (1781) rises, it drives the first rack (176) to move and engage the driving gear (175). The second lifting member (1782) is located between the second rack (177) and the first rack (176). At the bottom, the top end of the lifting end of the second lifting member (1782) and the bottom end of the second rack (177) are both wedge-shaped. When the lifting end of the second lifting member (1782) rises, it drives the second rack (177) to move and engage the driving gear (175). The two ends of the elastic member (1783) are connected to the first rack (176) and the second rack (177). The elastic member (1783) is used to push the first rack (176) and the second rack (177) to move away from each other. The valve stem (92) includes an upper rod body (921), a lower rod body (922), a secondary rod body (923), a valve head (924) and a second tension spring (925). ), the top end of the upper rod body (921) is fixedly connected to the driving end of the first driving member (93), the valve head (924) is fixedly arranged at the bottom end of the lower rod body (922), the auxiliary rod body (923) is fixedly arranged at the top end of the lower rod body (922), the diameter of the auxiliary rod body (923) is smaller than the diameter of the lower rod body (922), a third slide groove (21) is opened on the bottom wall of the upper rod body (921) along its own axial direction, the auxiliary rod body (923) is slidably arranged in the third slide groove (21), the second tension spring (925) is arranged in the third slide groove (21), the top end of the second tension spring (925) is fixedly arranged at the inner wall of the upper rod body (921), and the valve head (924) is fixedly arranged at the bottom end of the lower rod body (922). The lower end of the lower rod (923) is fixedly connected to the top wall of the auxiliary rod body (923), the return pipe (10) is connected to a shunt pipe (22), one end of the shunt pipe (22) away from the return pipe (10) passes through the upper rod body (921) and the auxiliary rod body (923) and extends into the lower rod body (922), the lower rod body (922) is provided with a pressure chamber (23) connected to the shunt pipe (22), the lower rod body (922) is provided with a plurality of push plates (24) at intervals along its circumference, the push plates (24) are slidably arranged along the diameter direction of the lower rod body (922) and penetrate the lower rod body (922), and one end of the push plates (24) is located in the pressure chamber (23). ; 2. A batching device according to claim 1, characterized in that: The driving assembly (7) comprises a second driving member (71), a first mounting seat (72) and a driving shaft (73); the first mounting seat (72) is fixedly arranged on the top wall of the cylinder body (1); the second driving member (71) is arranged on the first mounting seat (72); the driving shaft (73) is arranged at the driving end of the second driving member (71); the driving shaft (73) is rotatably arranged in the cylinder body (1); the bottom end of the driving shaft (73) extends into the baffle (5) and is fixedly connected to the impeller (6).

3. A batching device according to claim 2, characterized in that: A plurality of mounting posts (11) are fixedly arranged at the bottom of the first mounting seat (72), a mounting plate (12) is fixedly arranged at the bottom of the plurality of mounting posts (11), the baffle (5) is fixedly arranged on the bottom wall of the mounting plate (12), and the drive shaft (73) passes through the mounting plate (12) and extends into the baffle (5).

4. A batching device according to claim 1, characterized in that: A plurality of second slide grooves (18) are provided on the top wall of the slide plate (16) along the thickness direction thereof; the first rack (176) and the second rack (177) are both slidably arranged in the second slide grooves (18); guide blocks (19) are fixedly arranged on the opposite side walls of the first rack (176) and the second rack (177) along the direction of their own movement; guide grooves (20) are provided on the opposite inner side walls of the slide plate (16) located at the second slide groove (18); and the guide blocks (19) are slidably arranged in the guide grooves (20).

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