Electromagnetic pressure control device and tea rolling machine

Abstract

The application discloses an electromagnetic pressure control device and a tea leaf rolling machine, and the electromagnetic drive module is electrified to form a magnetic field, the coil and the magnet of the outer frame rail interact to generate a vertical force, the electromagnetic drive module slides in the outer frame rail, thereby driving the pressure component to slide in the outer frame rail; the control module is electrically connected with the pressure sensor and the electromagnetic drive module, the control module controls the sliding direction of the electromagnetic drive module according to the pressure signal collected by the pressure sensor, thereby adjusting the sliding direction of the pressure component, the pressure cover can accurately control the pressure acting on the tea leaves, the rolling pressure control precision is high, and the tea leaf rolling effect is improved. The positioning sliding groove of the outer frame rail and the positioning pulley of the electromagnetic drive module are used to position the movement direction of the electromagnetic drive module, the electromagnetic drive module stably slides along the direction in which the positioning sliding groove extends, and the pressure exerted by the pressure component is uniform.

Description

Technical Field

[0001] This invention relates to the field of tea rolling machine technology, and in particular to an electromagnetic pressure control device and a tea rolling machine. Background Technology

[0002] Rolling is a shaping process in the initial processing of tea leaves. Rolling forms a tightly rolled and curved shape and also affects the improvement of its internal quality. Rolling can tighten the tea strips, reduce their volume, lay a good foundation for drying into strips, and appropriately break down the leaf tissue and facilitate the transformation of substances.

[0003] In traditional tea processing, during the rolling stage, fresh leaves that have been withered or dried and softened are rolled by hand or with rough machines into shapes such as strips, needles, granules, and flakes. The control systems of rolling equipment in traditional tea processing plants typically use mechanical transmission devices (such as screws, pneumatics, belts, etc.). During the movement process, nonlinear factors such as mechanical gear backlash, friction, and elastic deformation are often introduced, resulting in inertia and dynamic response delays, which affect the stability of the system.

[0004] Due to the inconsistent quality of tea leaves during harvesting, and the rudimentary technology, demanding conditions, and complex operation of the production line control systems in tea processing plants, precise control over rolling force and time becomes impossible, resulting in tea breakage and uneven rolling. In other words, existing tea rolling equipment suffers from low precision in rolling force control and poor rolling results. Summary of the Invention

[0005] In order to overcome the above-mentioned shortcomings of the prior art, the present invention provides an electromagnetic pressure control device and a tea rolling machine, which aims to solve the problem of low rolling force control accuracy in existing tea rolling equipment.

[0006] The technical solution adopted by this invention to solve its technical problem is as follows: an electromagnetic pressure control device, comprising: an outer frame rail for mounting an electromagnetic drive module, a magnet fixedly mounted on the outer frame rail, positioning grooves on both sides of the outer frame rail, the positioning grooves being arranged along the extension direction of the outer frame rail, the positioning grooves being used to limit the sliding direction of the electromagnetic drive module; an electromagnetic drive module, installed inside the outer frame rail and sliding along the extension direction of the outer frame rail, a plurality of electromagnetic drive modules being arranged inside the outer frame rail, a plurality of positioning pulleys on both sides of the electromagnetic drive module, the positioning pulleys being engaged in the positioning grooves, the positioning pulleys sliding along the extension direction of the positioning grooves; a pressurizing component connected to the bottom of the electromagnetic drive module, a pressure sensor being provided between the pressurizing component and the electromagnetic drive module; a control module for controlling the sliding direction of the electromagnetic drive module, the control module being electrically connected to the pressure sensor and the electromagnetic drive module; the electromagnetic drive module being energized to form a magnetic field, which interacts with the magnet of the outer frame rail to generate a vertical thrust, the electromagnetic drive module sliding within the outer frame rail.

[0007] As a further improvement of the present invention: a circuit board is mounted on the top of the electromagnetic driving module, and the circuit board is connected to the control module; a coil is mounted on the top of the electromagnetic driving module, and the coil is magnetically connected to the magnet in the magnet mounting portion.

[0008] As a further improvement of the present invention: the cross-section of the outer frame rail is in a "冂" shape, the inner top of the outer frame rail is provided with a magnet mounting portion, the magnet mounting portion is arranged along the extending direction of the outer frame rail, the magnet mounting portion is used for mounting magnets, adjacent magnets are attached to each other, and the positive pole of one magnet is attached and connected to the negative pole of an adjacent magnet.

[0009] As a further improvement of the present invention: conductive rails are mounted on both inner sides of the outer frame rail, the conductive rails are arranged at the bottom of the outer frame rail, the conductive rails are arranged along the extending direction of the outer frame rail, and the conductive rails are electrically connected to the electromagnetic driving module.

[0010] As a further improvement of the present invention: a plurality of conductive wheels are mounted at the bottom of the electromagnetic driving module, and the conductive wheels are arranged on the left and right sides of the electromagnetic driving module and connected to the conductive rails on both sides of the outer frame rail.

[0011] As a further improvement of the present invention: a plurality of sliding pulleys are mounted on the electromagnetic driving module, and the plurality of sliding pulleys are in sliding connection with the inner wall of the outer frame rail.

[0012] The present invention provides a tea rolling machine with an electromagnetic pressure control device, comprising an electromagnetic pressure control device.

[0013] As a further improvement of the present invention: the pressing component comprises a pressing rod and a pressing cover, the top of the pressing rod is connected to the electromagnetic driving module, and the bottom of the pressing rod is fixedly connected to the pressing cover; the electromagnetic pressure control device is mounted on a guide rail platform, the guide rail platform is provided with a through hole, and the lower end of the pressing rod passes through the through hole to connect with the pressing cover.

[0014] As a further improvement of the present invention: the tea rolling machine further comprises a rolling component and a discharging component, and the rolling component and the discharging component are electrically connected to the control module; the rolling component comprises a rolling cylinder, a rotating arm, a support and a rolling plate, the rolling plate is mounted on supporting feet, the rotating arm is mounted on the supporting feet, the support is connected to the rotating arm, the support is used for fixing the rolling cylinder, and the rotating arm is connected to a rotating motor; the discharging component comprises a discharging plate and a discharging motor, a circular discharging hole is provided in the middle of the rolling plate, the discharging hole is movably connected with the discharging plate, and the bottom of the discharging plate is connected to the discharging motor.

[0015] As a further improvement of the present invention: the guide rail platform is connected to a lead screw via a connecting arm, the lead screw is mounted on a bracket, and a transmission gear is mounted at the bottom of the lead screw. The transmission gear meshes with a drive gear, and the drive gear is connected to a rotary handle. By rotating the rotary handle, the rotation direction of the guide rail platform can be controlled.

[0016] Compared with the prior art, the beneficial effects of the present invention are:

[0017] 1. This invention uses an electromagnetic drive module to generate a magnetic field when energized. The interaction between the coil and the magnet of the outer frame rail produces a vertical force, causing the electromagnetic drive module to slide within the outer frame rail, thereby driving the pressurizing component to slide within the outer frame rail. The control module is electrically connected to the pressure sensor and the electromagnetic drive module. Based on the pressure signal collected by the pressure sensor, the control module controls the sliding direction of the electromagnetic drive module, thereby adjusting the sliding direction of the pressurizing component, thus enabling precise control of the pressure applied by the pressurizing component.

[0018] 2. The present invention uses the positioning groove of the outer frame rail and the positioning pulley of the electromagnetic drive module to position the movement direction of the electromagnetic drive module, so that the electromagnetic drive module slides stably along the direction of the positioning groove, and the pressure applied by the pressurizing component is uniform.

[0019] 3. The tea kneading machine of this invention is equipped with an electromagnetic pressure control device. An electromagnetic drive module, when energized, generates a magnetic field. The interaction between the coil and the magnet of the outer frame rail produces a vertical force, causing the electromagnetic drive module to slide within the outer frame rail, thereby driving the pressure component to slide within the outer frame rail. The control module is electrically connected to the pressure sensor and the electromagnetic drive module. Based on the pressure signal collected by the pressure sensor, the control module controls the sliding direction of the electromagnetic drive module, thereby adjusting the sliding direction of the pressure component. This allows the pressure cap to precisely control the pressure applied to the tea leaves, resulting in high kneading pressure control accuracy and improved tea kneading effect. The total kneading pressure includes the electromagnetic force and the weight of the pressure cap and pressure rod (the weight of the pressure cap and pressure rod is fixed after design). The peak electromagnetic push (pull) force can be adjusted by modifying the circuit, increasing the number of coil groups, and extending the length of the linear guide rail. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the structure of the present invention.

[0021] Figure 2 This is a structural schematic diagram of the present invention from another angle.

[0022] Figure 3 This is a schematic diagram of the internal structure of the present invention.

[0023] Figure 4 This is a schematic diagram of the assembly structure of the electromagnetic drive module and the pressurizing component of the present invention.

[0024] Figure 5 This is a schematic diagram of the assembly structure of the electromagnetic drive module and the pressurizing component of the present invention from another angle.

[0025] Figure 6 This is a structural diagram showing the assembled state of the electromagnetic drive module and the outer frame rail.

[0026] Figure 7 This is a structural diagram of the electromagnetic drive module and the outer frame rail.

[0027] Figure 8 This is a structural schematic diagram of the electromagnetic drive module and the outer frame rail from another angle.

[0028] Figure 9 This is a schematic diagram of the internal structure of the electromagnetic drive module.

[0029] Reference numerals: 1. Outer frame rail; 2. Positioning slide groove; 3. Positioning pulley; 4. Electromagnetic drive module; 5. Conductive track; 6. Coil; 7. Conductive wheel; 8. Sliding pulley; 9. Circuit board; 10. Pressure rod; 11. Pressure cover; 12. Guide rail platform; 13. Kneading cylinder; 14. Support; 15. Kneading disc; 16. Rotating arm; 17. Rotary motor; 18. Kneading strip; 19. Discharge disc; 20. Discharge motor; 21. Connecting arm; 22. Pressure sensor; 23. Magnet; 24. Magnet mounting part; 25. Pressure component; 26. Lead screw; 27. Transmission gear; 28. Drive gear; 29. ​​Rotating handle. Detailed Implementation

[0030] In this document, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, without necessarily requiring or implying any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. The invention is now further described in conjunction with the accompanying drawings and embodiments:

[0031] Please see Figure 1-9 An electromagnetic pressure control device, comprising:

[0032] The outer frame rail 1 is used to install the electromagnetic drive module 4. The outer frame rail 1 is fixedly installed with a magnet 23. The outer frame rail 1 has positioning grooves 2 on both sides. The positioning grooves 2 are arranged along the extension direction of the outer frame rail 1. The positioning grooves 2 are used to limit the sliding direction of the electromagnetic drive module 4.

[0033] An electromagnetic driving module 4 is installed inside an outer frame rail 1 and slides along the extending direction of the outer frame rail 1. A plurality of electromagnetic driving modules 4 are arranged inside the outer frame rail 1, a plurality of positioning pulleys 3 are arranged on both sides of the electromagnetic driving module 4, the positioning pulleys 3 are clamped in positioning chutes 2, and the positioning pulleys 3 slide along the extending direction of the positioning chutes 2; a pressure applying component 25 is connected to the bottom of the electromagnetic driving module 4, and a pressure sensor 22 is arranged between the pressure applying component 25 and the electromagnetic driving module 4;

[0034] a control module, configured to control the sliding direction of the electromagnetic driving module 4, wherein the control module is electrically connected with the pressure sensor 22 and the electromagnetic driving module 4; the electromagnetic driving module 4 is energized to form a magnetic field, which interacts with a magnet 23 of the outer frame rail 1 to generate vertical thrust, so that the electromagnetic driving module 4 slides inside the outer frame rail 1.

[0035] The present invention positions the movement direction of the electromagnetic driving module 4 through the positioning chutes 2 of the outer frame rail 1 and the positioning pulleys 3 of the electromagnetic driving module 4, so that the electromagnetic driving module 4 can stably slide along the extending direction of the positioning chutes 2.

[0036] According to the present invention, the electromagnetic driving module 4 is energized to form a magnetic field, and a coil 6 interacts with the magnet 23 of the outer frame rail 1 to generate a vertical acting force, so that the electromagnetic driving module 4 slides inside the outer frame rail 1, thereby driving the pressure applying component 25 to slide inside the outer frame rail 1; through the control module electrically connected with the pressure sensor 22 and the electromagnetic driving module 4, the control module controls the sliding direction of the electromagnetic driving module 4 according to a pressure signal collected by the pressure sensor 22, thereby adjusting the sliding direction of the pressure applying component 25, so that the application pressure of the pressure applying component 25 can be accurately controlled.

[0037] Preferably, there are 4 positioning pulleys 3, wherein 2 positioning pulleys 3 are located on the left side of the electromagnetic driving module 4, and 2 positioning pulleys 3 are located on the right side of the electromagnetic driving module 4.

[0038] The cross section of the outer frame rail 1 is in an inverted "冂" shape, a magnet mounting part 24 is arranged at the top of the inner side of the outer frame rail 1, the magnet mounting part 24 is arranged along the extending direction of the outer frame rail 1, a plurality of magnets 23 are installed in the magnet mounting part 24, adjacent magnets 23 are attached to each other, and the positive pole of one magnet 23 is attached and connected to the negative pole of the adjacent magnet 23.

[0039] Conductive rails 5 are installed on both sides of the inner part of the outer frame rail 1, the conductive rails 5 are arranged at the bottom of the outer frame rail 1, the conductive rails 5 are arranged along the extending direction of the outer frame rail 1, and the conductive rails 5 are electrically connected with the electromagnetic driving module 4.

[0040] Preferably, the conductive rail 5 is made of copper bar.

[0041] A coil 6 is installed on the top of the electromagnetic drive module 4. The coil 6 is magnetically connected to the magnet 23 in the magnet mounting part 24. Several conductive wheels 7 are installed on the bottom of the electromagnetic drive module 4. The conductive wheels 7 are located on the left and right sides of the electromagnetic drive module 4 and are connected to the conductive tracks 5 on both sides of the outer frame rail 1.

[0042] The electromagnetic drive module 4 is equipped with several sliding pulleys 8, which are slidably connected to the inner wall of the outer frame rail 1.

[0043] The conductive wheel 7 is a metal pulley, preferably made of copper.

[0044] A circuit board 9 is mounted on the top of the electromagnetic drive module 4, and the circuit board 9 is connected to the control module. The control module is used to control the circuit board 9 of the electromagnetic drive module 4.

[0045] A tea kneading machine with an electromagnetic pressure control device includes the aforementioned electromagnetic pressure control device; the pressure-applying component 25 consists of a pressure rod 10 and a pressure cover 11, the top of the pressure rod 10 is connected to an electromagnetic drive module 4, and the bottom of the pressure rod 10 is fixedly connected to the pressure cover 11; the electromagnetic pressure control device is mounted on a guide rail platform 12, the guide rail platform 12 has a through hole, and the lower end of the pressure rod 10 passes through the through hole and connects to the pressure cover 11.

[0046] Preferably, the pressure rod 10 and the pressure cover 11 are integrally formed.

[0047] The tea rolling machine also includes a rolling component and a discharge component, which are electrically connected to the control module.

[0048] The kneading component includes a kneading cylinder 13, a rotating arm 16, a support 14, and a kneading disc 15. The kneading disc 15 is mounted on a support foot, the rotating arm 16 is mounted on a support foot, the support 14 is connected to the rotating arm 16, the support 14 is used to fix the kneading cylinder 13, the rotating arm 16 is connected to a rotary motor 17, and the upper surface of the kneading disc 15 is evenly provided with a plurality of convex arc-shaped kneading strips 18 along its circumference.

[0049] The discharge component includes a discharge disc 19 and a discharge motor 20. The center of the kneading disc 15 is provided with a circular discharge hole, and the discharge hole is movably connected to the discharge disc 19. The bottom of the discharge disc 19 is connected to the discharge motor 20, and the discharge motor 20 is used to control the opening or closing of the discharge disc 19.

[0050] The guide rail platform 12 is connected to the lead screw 26 via a connecting arm 21. The lead screw 26 is mounted on the bracket 14, and a transmission gear 27 is mounted on the bottom of the lead screw 26. The transmission gear 27 meshes with a drive gear 28, and the drive gear 28 is connected to a rotating handle 29. By rotating the rotating handle 29, the rotation direction of the guide rail platform 12 can be controlled.

[0051] The control module is installed inside the main control box, which is connected to a power cord, the other end of which is connected to a power source.

[0052] The electromagnetic drive module 4 is energized to form a magnetic field. The coil 6 interacts with the magnet 23 of the outer frame rail 1 to generate a vertical force, causing the electromagnetic drive module 4 to slide within the outer frame rail 1, thereby driving the pressure component 25 to slide within the outer frame rail 1. The control module is electrically connected to the pressure sensor 22 and the electromagnetic drive module 4. Based on the pressure signal collected by the pressure sensor 22, the control module controls the sliding direction of the electromagnetic drive module 4, thereby adjusting the sliding direction of the pressure component 25. This allows the pressure cover 11 to precisely control the pressure applied to the tea leaves, resulting in high precision in the kneading pressure control and improved tea kneading effect.

[0053] Implementation Case 1:

[0054] An electromagnetic pressure control device, comprising: an outer frame rail 1, configured for mounting an electromagnetic drive module 4, wherein a magnet 23 is fixedly mounted on the outer frame rail 1, positioning chutes 2 are provided on both sides of the outer frame rail 1, the positioning chutes 2 are arranged along the extension direction of the outer frame rail 1, and the positioning chutes 2 are configured to limit the sliding direction of the electromagnetic drive module 4; the electromagnetic drive module 4, mounted inside the outer frame rail 1 and sliding along the extension direction of the outer frame rail 1, wherein a plurality of electromagnetic drive modules 4 are arranged inside the outer frame rail 1, a plurality of positioning pulleys 3 are provided on both sides of the electromagnetic drive module 4, the positioning pulleys 3 are clamped in the positioning chutes 2, and the positioning pulleys 3 slide along the extension direction of the positioning chutes 2; a pressure applying component 25 is connected to the bottom of the electromagnetic drive module 4, and a pressure sensor 22 is provided between the pressure applying component 25 and the electromagnetic drive module 4; a control module, configured to control the sliding direction of the electromagnetic drive module 4, wherein the control module is electrically connected to the pressure sensor 22 and the electromagnetic drive module 4; the electromagnetic drive module 4 is energized to form a magnetic field, which interacts with the magnet 23 of the outer frame rail 1 to generate a vertical thrust, so that the electromagnetic drive module 4 slides in the outer frame rail 1. According to the present invention, the movement direction of the electromagnetic drive module 4 is positioned through the positioning chutes 2 of the outer frame rail 1 and the positioning pulleys 3 of the electromagnetic drive module 4, so that the electromagnetic drive module 4 can stably slide along the extension direction of the positioning chutes 2. According to the present invention, the electromagnetic drive module 4 is energized to form a magnetic field, and the coil 6 interacts with the magnet 23 of the outer frame rail 1 to generate a vertical acting force, so that the electromagnetic drive module 4 slides in the outer frame rail 1, thereby driving the pressure applying component 25 to slide in the outer frame rail 1; through the electrical connection between the control module, the pressure sensor 22 and the electromagnetic drive module 4, the control module controls the sliding direction of the electromagnetic drive module 4 according to the pressure signal collected by the pressure sensor 22, so as to adjust the sliding direction of the pressure applying component 25, thereby accurately controlling the pressure applied by the pressure applying component 25.

[0055] The cross section of the outer frame rail 1 is in a shape of "冂", a magnet mounting portion 24 is provided at the top of the inner side of the outer frame rail 1, the magnet mounting portion 24 is arranged along the extension direction of the outer frame rail 1, a plurality of magnets 23 are mounted in the magnet mounting portion 24, adjacent magnets 23 are attached to each other, and the positive pole of one magnet 23 is attached to and connected with the negative pole of an adjacent magnet 23.

[0056] Conductive rails 5 are mounted on both sides of the inner part of the outer frame rail 1, the conductive rails 5 are arranged at the bottom of the outer frame rail 1, the conductive rails 5 are arranged along the extension direction of the outer frame rail 1, and the conductive rails 5 are electrically connected to the electromagnetic drive module 4.

[0057] A coil 6 is installed on the top of the electromagnetic drive module 4. The coil 6 is magnetically connected to the magnet 23 in the magnet mounting part 24. Two conductive wheels 7 are installed on the bottom of the electromagnetic drive module 4. The two conductive wheels 7 are respectively located on the left and right sides of the electromagnetic drive module 4 and connected to the conductive tracks 5 on both sides of the outer frame rail 1.

[0058] The electromagnetic drive module 4 is equipped with four sliding pulleys 8, which are slidably connected to the inner wall of the outer frame rail 1; two of the sliding pulleys 8 are located on the left side of the electromagnetic drive module 4, and two of the sliding pulleys 8 are located on the right side of the electromagnetic drive module 4.

[0059] A circuit board 9 is mounted on the top of the electromagnetic drive module 4, and the circuit board 9 is connected to the control module. The control module is used to control the circuit board 9 of the electromagnetic drive module 4.

[0060] Implementation Case 2:

[0061] The difference from Implementation Case 1 is that: there are 4 positioning pulleys 3, with 2 positioning pulleys 3 located on the left side of the electromagnetic drive module 4 and 2 positioning pulleys 3 located on the right side of the electromagnetic drive module 4. The conductive track 5 is made of copper strips, and the conductive wheel 7 is made of copper material.

[0062] The other structures are the same as in Implementation Case 1, and will not be described again in this implementation case.

[0063] Implementation Case 3:

[0064] A tea kneading machine with an electromagnetic pressure control device includes the aforementioned electromagnetic pressure control device; the electromagnetic pressure control device includes: an outer frame rail 1, on which a magnet 23 is fixedly mounted, and positioning grooves 2 are provided on both sides of the outer frame rail 1, the positioning grooves 2 being arranged along the extending direction of the outer frame rail 1, the positioning grooves 2 being used to limit the sliding direction of an electromagnetic drive module 4; an electromagnetic drive module 4, installed inside the outer frame rail 1 and sliding along the extending direction of the outer frame rail 1, wherein a plurality of electromagnetic drive modules 4 are provided inside the outer frame rail 1, and a plurality of electromagnetic drive modules 4 are provided on both sides of the electromagnetic drive module 4. A positioning pulley 3 is engaged in a positioning groove 2 and slides along the direction of the positioning groove 2. A pressure-applying component 25 is connected to the bottom of the electromagnetic drive module 4, and a pressure sensor 22 is provided between the pressure-applying component 25 and the electromagnetic drive module 4. A control module is used to control the sliding direction of the electromagnetic drive module 4, and the control module is electrically connected to the pressure sensor 22 and the electromagnetic drive module 4. When the electromagnetic drive module 4 is energized, it forms a magnetic field, which interacts with the magnet 23 of the outer frame rail 1 to generate a vertical thrust, and the electromagnetic drive module 4 slides within the outer frame rail 1.

[0065] The pressurizing component 25 consists of a pressurizing rod 10 and a pressurizing cover 11. The top of the pressurizing rod 10 is connected to the electromagnetic drive module 4, and the bottom of the pressurizing rod 10 is fixedly connected to the pressurizing cover 11. The electromagnetic pressure control device is installed on the guide rail platform 12, which has a through hole. The lower end of the pressurizing rod 10 passes through the through hole and connects to the pressurizing cover 11.

[0066] The tea rolling machine also includes a rolling component and a discharge component, which are electrically connected to the control module.

[0067] The kneading component includes a kneading cylinder 13, a rotating arm 16, a support 14, and a kneading disc 15. The kneading disc 15 is mounted on a support foot, the rotating arm 16 is mounted on a support foot, the support 14 is connected to the rotating arm 16, the support 14 is used to fix the kneading cylinder 13, the rotating arm 16 is connected to a rotary motor 17, and the upper surface of the kneading disc 15 is evenly provided with a plurality of convex arc-shaped kneading strips 18 along its circumference.

[0068] The discharge component includes a discharge disc 19 and a discharge motor 20. The center of the kneading disc 15 is provided with a circular discharge hole, and the discharge hole is movably connected to the discharge disc 19. The bottom of the discharge disc 19 is connected to the discharge motor 20, and the discharge motor 20 is used to control the opening or closing of the discharge disc 19.

[0069] The guide rail platform 12 is connected to the lead screw 26 via a connecting arm 21. The lead screw 26 is mounted on the bracket 14, and a transmission gear 27 is mounted on the bottom of the lead screw 26. The transmission gear 27 meshes with a drive gear 28, and the drive gear 28 is connected to a rotating handle 29. By rotating the rotating handle 29, the rotation direction of the guide rail platform 12 can be controlled.

[0070] The control module is installed inside the main control box, which is connected to a power cord, the other end of which is connected to a power source.

[0071] The electromagnetic drive module 4 is energized to form a magnetic field. The coil 6 interacts with the magnet 23 of the outer frame rail 1 to generate a vertical force, causing the electromagnetic drive module 4 to slide within the outer frame rail 1, thereby driving the pressure component 25 to slide within the outer frame rail 1. The control module is electrically connected to the pressure sensor 22 and the electromagnetic drive module 4. Based on the pressure signal collected by the pressure sensor 22, the control module controls the sliding direction of the electromagnetic drive module 4, thereby adjusting the sliding direction of the pressure component 25. This allows the pressure cover 11 to precisely control the pressure applied to the tea leaves, resulting in high precision in the kneading pressure control and improved tea kneading effect.

[0072] Application effect evaluation:

[0073] This invention discloses an electromagnetic pressure control device and a tea rolling machine. The control module uses pressure signals collected by a pressure sensor to control the sliding direction of the electromagnetic drive module, thereby adjusting the sliding direction of the pressure-applying component. This allows the pressure cap to precisely control the pressure applied to the tea leaves, resulting in high precision in rolling pressure control and improved rolling effect. The positioning grooves on the outer frame rail and the positioning pulleys of the electromagnetic drive module position the movement direction of the electromagnetic drive module, ensuring stable sliding along the direction of the positioning grooves. This results in uniform pressure application from the pressure-applying component, further enhancing the rolling effect of the tea leaves. To verify the practical application effect, the applicant conducted experiments on green tea and black tea.

[0074] I. Types of tea: green tea and black tea.

[0075] II. Kneading methods: manual, gear transmission (gear transmission refers to a tea kneading machine controlled by traditional gear transmission), and electromagnetic pressure (electromagnetic pressure refers to a tea kneading machine using the electromagnetic pressure control device of this invention).

[0076] III. Experimental Design: The tea leaves were divided into 6 experimental groups based on their type and rolling method.

[0077] 1) Experimental Group 1: The experimental material was green tea, and the kneading method was manual kneading.

[0078] 2) Experimental Group 2: The experimental material was green tea, and the kneading method was gear transmission.

[0079] 3) Experimental Group 3: The experimental material was green tea, and the kneading method was electromagnetic pressure.

[0080] 4) Experimental Group 4: The experimental material was black tea, and the kneading method was manual kneading.

[0081] 5) Experimental Group 5: The experimental material was black tea, and the kneading method was gear transmission.

[0082] 6) Experimental Group Six: The experimental material was black tea, and the kneading method was electromagnetic pressure.

[0083] The effects of the rolling process on randomly selected processed tea leaves were measured. The experimental results are shown in the table below:

[0084]

[0085] Table 1 Comparison of the effects of kneading process

[0086] As shown in the table above, regardless of whether green tea or black tea is used, compared with manual and gear-driven kneading methods, the electromagnetic pressure kneading method of this invention has a higher strip formation rate, semi-strip formation rate, and total strip formation rate, while the broken tea rate and broken powder rate are lower.

[0087] Therefore, the electromagnetic pressure control device of the tea rolling machine of the present invention can more accurately control the movement of the system and reduce the possibility of oscillation and instability, so that the pressure cover can accurately control the pressure applied to the tea leaves, and has the advantages of high rolling pressure control accuracy and good rolling effect. At the same time, the movement direction of the electromagnetic drive module is positioned by the positioning groove of the outer frame rail and the positioning pulley of the electromagnetic drive module, so that the electromagnetic drive module slides stably along the direction of the positioning groove, making the pressure applied by the pressure component uniform, and further improving the rolling effect of the tea leaves.

[0088] The main functions of this invention are:

[0089] This invention uses a positioning groove on the outer frame rail and a positioning pulley on the electromagnetic drive module to position the movement direction of the electromagnetic drive module, allowing it to slide stably along the direction of the positioning groove. An electromagnetic pressure control device is included; when the electromagnetic drive module is energized, a magnetic field is generated. The interaction between the coil and the magnet on the outer frame rail produces a vertical force, causing the electromagnetic drive module to slide within the outer frame rail, thereby driving the pressure-applying component to slide within the outer frame rail. A control module is electrically connected to the pressure sensor and the electromagnetic drive module. Based on the pressure signal collected by the pressure sensor, the control module controls the sliding direction of the electromagnetic drive module, thereby adjusting the sliding direction of the pressure-applying component. This allows the pressure cap to precisely control the pressure applied to the tea leaves, resulting in high precision in kneading pressure control and improved tea kneading effect.

[0090] In the description of this invention, it should be understood that the terms "upper end face", "lower end face", "top", "bottom", "left", "right", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this invention. Therefore, they should not be construed as limiting the actual direction of use of this invention.

[0091] The above embodiments are only used to illustrate the technical solutions of the present invention, and are not intended to limit it. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention, and they should all be covered within the scope of the claims and specification of the present invention.

Claims

1. An electromagnetic pressure control device, characterized in that: Comprising: an outer frame rail for mounting an electromagnetic drive module, wherein a magnet is fixedly mounted on the outer frame rail; electromagnetic drive modules mounted inside the outer frame rail and sliding along the extending direction of the outer frame rail, wherein a plurality of electromagnetic drive modules are arranged inside the outer frame rail; a pressing member is connected to the bottom of the electromagnetic drive module, and a pressure sensor is arranged between the pressing member and the electromagnetic drive module; a control module for controlling the sliding direction of the electromagnetic drive modules, wherein the control module is electrically connected with the pressure sensor and the electromagnetic drive modules; the electromagnetic drive module is energized to form a magnetic field, which interacts with the magnet on the outer frame rail to generate vertical thrust, so that the electromagnetic drive module slides in the outer frame rail; positioning chutes are provided on both sides of the outer frame rail, the positioning chutes are arranged along the extending direction of the outer frame rail, and the positioning chutes are configured to limit the sliding direction of the electromagnetic drive module; a plurality of positioning pulleys are provided on both sides of the electromagnetic drive module, the positioning pulleys are clamped in the positioning chutes, and the positioning pulleys slide along the extending direction of the positioning chutes; the cross-section of the outer frame rail is in a "冂" shape, a magnet mounting portion is provided on the inner top of the outer frame rail, the magnet mounting portion is arranged along the extending direction of the outer frame rail, the magnet mounting portion is configured for mounting magnets, adjacent magnets are attached to each other, and the positive pole of one magnet is attached and connected to the negative pole of the adjacent magnet; conductive rails are mounted on both inner sides of the outer frame rail, the conductive rails are arranged at the bottom of the outer frame rail, the conductive rails are arranged along the extending direction of the outer frame rail, and the conductive rails are electrically connected with the electromagnetic drive module; a plurality of conductive wheels are mounted at the bottom of the electromagnetic drive module, and the conductive wheels are arranged on the left and right sides of the electromagnetic drive module and connected with the conductive rails on both sides of the outer frame rail.

2. The electromagnetic pressure control device according to claim 1, characterized in that: a circuit board is mounted on the top of the electromagnetic drive module, and the circuit board is connected with the control module; a coil is mounted on the top of the electromagnetic drive module, and the coil is magnetically connected with the magnet in the magnet mounting portion.

3. The electromagnetic pressure control device according to claim 1, characterized in that: a plurality of sliding pulleys are mounted on the electromagnetic drive module, and the plurality of sliding pulleys are in sliding connection with the inner wall of the outer frame rail.

4. A tea kneading machine with an electromagnetic pressure control device, characterized in that: comprising the electromagnetic pressure control device according to any one of claims 1 to 3.

5. A tea kneading machine with an electromagnetic pressure control device according to claim 4, characterized in that: the pressing member is a pressing rod and a pressing cover, the top of the pressing rod is connected with the electromagnetic drive module, and the bottom of the pressing rod is fixedly connected with the pressing cover; the electromagnetic pressure control device is mounted on a guide rail platform, a through hole is provided on the guide rail platform, and the lower end of the pressing rod passes through the through hole to be connected with the pressing cover.

6. A tea kneading machine with an electromagnetic pressure control device according to claim 5, characterized in that: the tea rolling machine further comprises a rolling component and a discharging component, the rolling component and the discharging component are electrically connected with the control module; the rolling component comprises a rolling cylinder, a rotating arm, a support and a rolling disc, the rolling disc is mounted on support feet, the rotating arm is mounted on the support feet, the support is connected with the rotating arm, the support is configured to fix the rolling cylinder, and the rotating arm is connected with a rotating motor; the discharging component comprises a discharging disc and a discharging motor, a circular discharging hole is provided in the middle of the rolling disc, the discharging hole is movably connected with the discharging disc, and the bottom of the discharging disc is connected with the discharging motor.

7. A tea rolling machine with an electromagnetic pressure control device according to claim 6, characterized in that: The guide rail platform is connected to the lead screw via a connecting arm. The lead screw is mounted on a bracket, and a transmission gear is installed at the bottom of the lead screw. The transmission gear meshes with the drive gear, and the drive gear is connected to the rotating handle.

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