Traditional Chinese medicine drum screening machine with replaceable screening drum

Abstract

The utility model relates to the technical field of traditional Chinese medicine processing equipment, in particular to a traditional Chinese medicine drum screening machine with a replaceable screening drum, which comprises a screening box body, and a support frame is fixedly connected to the lower position of the outer wall of the screening box body; a plurality of screen holes are formed in the circumferential side wall of the screen drum, and connecting shafts are fixedly connected to the two axial side walls of the screen drum; and the quick dismounting and mounting assembly comprises two rotating shafts rotationally connected to the side wall of the screening box body through bearings, and butt joint grooves are formed in the ends, located in the screening box body, of the two rotating shafts correspondingly. According to the roller screen, the screen drum can be rapidly connected, fixed or locked, meanwhile, the screen drum can be fixed in a multi-point mode, the stability of the screen drum can be improved when the roller screen is rotated, the screening effect of traditional Chinese medicine raw materials is guaranteed, the installation operation of the screen drum can be simplified, the automation degree of replacement and installation operation of the screen drum is effectively improved, and the production efficiency is improved. And the replacement efficiency of the screen drum is improved.

Description

Technical Field

[0001] This utility model relates to the technical field of traditional Chinese medicine processing equipment, specifically to a traditional Chinese medicine drum sieve machine with replaceable sieve cylinders. Background Technology

[0002] Traditional Chinese medicine (TCM) refers to medicinal materials or preparations formed by processing natural raw materials such as plants, animals, and minerals. TCM sieving and processing is an important part of the TCM processing and processing process. It refers to separating medicinal materials from impurities by using tools such as sieves according to the differences in particle size, shape, and impurities, so as to grade medicinal materials of different particle sizes.

[0003] A search revealed Chinese Patent Publication No. CN212120712U, which discloses a drum-type traditional Chinese medicine sieving device. The device includes a housing with an integrally formed discharge port at the bottom. The discharge port is conical. Symmetrically arranged vertical plates are positioned inside the housing, above the discharge port. Rotary shafts are symmetrically arranged on the inner walls of the two vertical plates, and a drum screen is installed between the two shafts. This structure allows for automatic opening and closing of the gate, facilitating the discharge of sieved traditional Chinese medicine residue from the housing. It also allows for easy removal of the drum screen from the housing; simply opening the cover allows the traditional Chinese medicine to be removed from the drum screen.

[0004] Existing technologies often have the following problems when used:

[0005] Currently used Chinese medicine drum screening machines typically employ bolted connections for disassembly and replacement of the sieve cylinders. However, these bolted connections often require multiple steps, making the disassembly and assembly of the sieve cylinders cumbersome and resulting in low replacement efficiency. Furthermore, the sieve cylinders have only a single fixing point, making it difficult to achieve multi-point fixation. This can cause the sieve cylinders to tilt during rotation, which in turn affects the screening effect of the Chinese medicine. Utility Model Content

[0006] In view of the above-mentioned shortcomings of the existing technology, the present invention provides a Chinese medicine drum sieve machine with replaceable sieve cylinder, which can effectively solve the problems of the cumbersome disassembly and assembly of the sieve cylinder in the existing technology, resulting in low replacement efficiency of the sieve cylinder, and the single fixing point of the sieve cylinder, which makes the sieve cylinder prone to tilting when rotating and screening, thus affecting the screening effect of Chinese medicine.

[0007] To achieve the above objectives, this utility model provides the following technical solution:

[0008] This utility model provides a Chinese herbal medicine drum sieve machine with replaceable sieve cylinders, including:

[0009] A screening box, wherein a support frame is fixedly connected to the lower part of the outer wall of the screening box;

[0010] A sieve cylinder, wherein a plurality of sieve holes are provided on the circumferential sidewalls of the sieve cylinder, and a connecting shaft is fixedly connected to both of the two axial sidewalls of the sieve cylinder;

[0011] The quick-assembly assembly includes two rotating shafts rotatably connected to the side wall of the screening box via bearings. Each of the two rotating shafts has a mating groove at its end inside the screening box. Each end of the two rotating shafts is fixedly connected to a locking block, which matches the mating groove. Several small electric push rods and several support rings are fixedly connected to the outer peripheral walls of each of the two rotating shafts. A locking shaft is slidably connected to the inner side of each of the support rings. The small electric push rods are respectively fixedly connected to the ends of the locking shafts. Several fixed cylinders are fixedly connected to the two axial side walls of the screening cylinder, and the locking shafts are respectively engaged with the fixed cylinders.

[0012] Furthermore, a fixed bracket is fixedly connected to the outer wall of the screening box, and a servo motor is fixedly connected to the upper end face of the fixed bracket. The output end of the servo motor is fixedly connected to the end of one of the rotating shafts.

[0013] Furthermore, the quick-assembly assembly also includes a displacement sensor fixedly connected to the inner wall of the screening box. The displacement sensor is used to monitor the height position of the screening cylinder in real time. A PLC controller is fixedly connected to the outer wall of the screening box. The PLC controller, several small electric push rods, the displacement sensor and the external power supply form a closed control circuit.

[0014] Furthermore, the top of the screening box is hinged with two doors, and each of the two doors is fixedly connected with a handle. The circumferential side wall of the screening cylinder is provided with a feeding port, and the feeding port is hinged with an arc-shaped sealing plate by a torsion spring.

[0015] Furthermore, traction rods are fixedly connected to both axial side walls of the screen cylinder.

[0016] Furthermore, the bottom of the screening box is tapered, and a discharge port is provided on the lower end face of the screening box.

[0017] The technical solution provided by this utility model has the following advantages compared with the known prior art:

[0018] This utility model is equipped with a quick-assembly and disassembly assembly. Several small electric push rods are used to drive several snap-fit ​​shafts to move horizontally, so that the snap-fit ​​shafts can slide relative to several support rings and be connected into or away from several fixed cylinders, so as to quickly complete the connection, fixation or locking of the sieve cylinder. The snap-fit ​​cooperation between the snap-fit ​​shafts and the fixed cylinders can realize multi-point fixation of the sieve cylinder, which is beneficial to improve the stability of the sieve cylinder when rotating the sieve and ensure the screening effect of Chinese medicine raw materials.

[0019] This invention incorporates a displacement sensor. During the screen cylinder replacement and installation process, when the displacement sensor detects that the bottom of the screen cylinder has reached a predetermined height, it transmits a signal to the PLC controller. This allows the PLC controller to automatically activate several small electric push rods, whose telescopic ends automatically drive several locking shafts to move and connect into several fixed cylinders. This simplifies the screen cylinder installation operation, effectively improves the automation level of the screen cylinder replacement and installation work, and further enhances the screen cylinder replacement efficiency. Attached Figure Description

[0020] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0021] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0022] Figure 2 This is a cross-sectional view of the screening box structure in this utility model;

[0023] Figure 3 This is an exploded view of the quick-assembly and disassembly component structure in this utility model;

[0024] Reference numerals in the attached diagram: 1. Screening box; 2. Screen cylinder; 3. Connecting shaft; 4. Rotating shaft; 5. Docking groove; 6. Clamping block; 7. Small electric push rod; 8. Support ring; 9. Clamping shaft; 10. Fixed cylinder; 11. Servo motor; 12. Displacement sensor; 13. PLC controller; 14. Box door; 15. Feeding / discharging port; 16. Arc-shaped enclosed plate; 17. Traction rod; 18. Discharge port; 19. Support frame. Detailed Implementation

[0025] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.

[0026] The present invention will be further described below with reference to the embodiments.

[0027] Example: Refer to Figures 1 to 3A Chinese herbal medicine drum sieve with replaceable sieve cylinder includes: a sieve box 1, a sieve cylinder 2, and a quick disassembly assembly. A support frame 19 is fixedly connected to the lower part of the outer wall of the sieve box 1. The bottom of the sieve box 1 is tapered, and a discharge port 18 is opened on the lower end face of the sieve box 1. Several sieve holes are opened on the circumferential side wall of the sieve cylinder 2. A connecting shaft 3 is fixedly connected to both axial side walls of the sieve cylinder 2. Two doors 14 are hinged to the top of the sieve box 1. A handle is fixedly connected to the upper end face of both doors 14. A feeding port 15 is opened on the circumferential side wall of the sieve cylinder 2. An arc-shaped sealing plate 16 is hinged to the feeding port 15 by a torsion spring. A traction rod 17 is fixedly connected to both axial side walls of the sieve cylinder 2.

[0028] The quick-assembly assembly includes two rotating shafts 4 rotatably connected to the side wall of the screening box 1 via bearings. A fixed bracket is fixedly connected to the outer wall of the screening box 1. A servo motor 11 is fixedly connected to the upper end of the fixed bracket. The output end of the servo motor 11 is fixedly connected to the end of one of the rotating shafts 4. The ends of the two rotating shafts 4 located inside the screening box 1 are provided with docking grooves 5. The ends of the two connecting shafts 3 are fixedly connected with locking blocks 6, which match the docking grooves 5. Several small electric push rods 7 and several support rings 8 are fixedly connected to the outer peripheral walls of the two rotating shafts 4. The inner sides of the several support rings 8 are slidably connected with locking shafts 9. The several small electric push rods 7 are fixedly connected to the ends of the several locking shafts 9 respectively. Several fixed cylinders 10 are fixedly connected to the two axial side walls of the screen cylinder 2. The several locking shafts 9 are locked and engaged with the several fixed cylinders 10 respectively.

[0029] When using the screening of Chinese herbal raw materials, the raw materials to be screened are first put into the screen cylinder 2, and the two connecting shafts 3 and the two rotating shafts 4 are connected and fixed to complete the fixation of the screen cylinder 2. Then, the servo motor 11 is started, and the servo motor 11 drives the two rotating shafts 4, the two connecting shafts 3 and the screen cylinder 2 to rotate, so as to use the screen cylinder 2 to screen the raw materials of Chinese herbal medicine.

[0030] Specifically, the arc-shaped sealing plate 16 is hinged to the feeding port 15 by a torsion spring, and the torsion spring is pre-tightened, that is, the arc-shaped sealing plate 16 has a tendency to rotate close to the feeding port 15 at the beginning. During the process of driving the screen cylinder 2 to rotate to screen the Chinese medicine raw materials, the arc-shaped sealing plate 16 can always fit the feeding port 15 under the elastic force of the torsion spring, so as to ensure the sealing of the screen cylinder 2 during the screening process.

[0031] The telescopic ends of several small electric push rods 7 drive several locking shafts 9 to move horizontally, so that the locking shafts 9 can slide relative to several support rings 8 respectively, and be connected into or away from several fixed cylinders 10 respectively, so as to quickly complete the connection, fixation or locking of the sieve cylinder 2. The locking cooperation between the locking shafts 9 and the fixed cylinders 10 can realize multi-point fixation of the sieve cylinder 2, which is beneficial to improve the stability of the sieve cylinder 2 when rotating the sieve and ensure the screening effect of Chinese medicine raw materials.

[0032] Specifically, the closed control circuit consisting of PLC controller 13, several small electric push rods 7, displacement sensor 12 and external power supply is equipped with relay control, so that PLC controller 13 can control several small electric push rods 7 to start synchronously, that is, the telescopic ends of several small electric push rods 7 can extend and retract synchronously and drive several snap-fit ​​shafts 9 to move synchronously.

[0033] The quick-assembly assembly also includes a displacement sensor 12 fixedly connected to the inner wall of the screening box 1. The displacement sensor 12 is used to monitor the height position of the screen cylinder 2 in real time. A PLC controller 13 is fixedly connected to the outer wall of the screening box 1. The PLC controller 13, several small electric push rods 7, the displacement sensor 12 and the external power supply form a closed control circuit.

[0034] During the installation phase of screen cylinder 2 replacement, screen cylinder 2 is placed into screening box 1, so that the locking block 6 at the end of connecting shaft 3 engages with the docking groove 5 at the end of rotating shaft 4. When the locking block 6 is fully engaged with the docking groove 5, displacement sensor 12 detects that the bottom of screen cylinder 2 has reached the predetermined height position and transmits a signal to PLC controller 13, so that PLC controller 13 can automatically control several small electric push rods 7 to start, so that the extension and retraction ends of several small electric push rods 7 can automatically drive several locking shafts 9 to move into several fixed cylinders 10, thereby simplifying the installation operation of screen cylinder 2, effectively improving the automation level of screen cylinder 2 replacement and installation operation, and further improving the replacement efficiency of screen cylinder 2.

[0035] The working principle of this utility model is as follows:

[0036] When using the screening of Chinese herbal raw materials, the raw materials to be screened are first put into the screen cylinder 2, and the two connecting shafts 3 and the two rotating shafts 4 are connected and fixed to complete the fixation of the screen cylinder 2. Then, the servo motor 11 is started, and the servo motor 11 drives the two rotating shafts 4, the two connecting shafts 3 and the screen cylinder 2 to rotate, so as to use the screen cylinder 2 to screen the raw materials of Chinese herbal medicine.

[0037] When the screen cylinder 2 needs to be replaced, the PLC controller 13 can control several small electric push rods 7 to start running. The telescopic ends of the several small electric push rods 7 drive several snap-fit ​​shafts 9 to move horizontally, so that the snap-fit ​​shafts 9 can slide relative to several support rings 8 respectively, and be connected into or away from several fixed cylinders 10 respectively, so as to quickly complete the connection, fixation or locking of the screen cylinder 2. The snap-fit ​​cooperation between several snap-fit ​​shafts 9 and several fixed cylinders 10 can realize multi-point fixation of the screen cylinder 2.

[0038] During the installation phase of replacing the screen cylinder 2, the screen cylinder 2 is placed into the screening box 1, so that the locking block 6 at the end of the connecting shaft 3 is engaged with the docking groove 5 at the end of the rotating shaft 4. When the locking block 6 is fully engaged with the docking groove 5, the displacement sensor 12 detects that the bottom of the screen cylinder 2 has reached the predetermined height position and transmits a signal to the PLC controller 13, so that the PLC controller 13 can automatically control several small electric push rods 7 to start, so that the extension and retraction ends of several small electric push rods 7 can automatically drive several locking shafts 9 to move into several fixed cylinders 10, so as to automatically complete the installation and fixing of the screen cylinder 2.

[0039] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model 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 of the technical features. Such modifications or substitutions will not cause the essence of the corresponding technical solutions to deviate from the protection scope of the technical solutions of the embodiments of this utility model.

Claims

1. A Chinese herbal medicine drum sieve with replaceable sieve cylinder, characterized in that, include: The screening box (1) has a support frame (19) fixedly connected to the lower part of the outer wall of the screening box (1). The sieve cylinder (2) has several sieve holes on its circumferential sidewalls, and the two axial sidewalls of the sieve cylinder (2) are fixedly connected to a connecting shaft (3). The quick-assembly assembly includes two rotating shafts (4) rotatably connected to the side wall of the screening box (1) via bearings. The ends of the two rotating shafts (4) located inside the screening box (1) are provided with docking grooves (5). The ends of the two connecting shafts (3) are fixedly connected with locking blocks (6). The locking blocks (6) match the docking grooves (5). The outer peripheral walls of the two rotating shafts (4) are fixedly connected with several small electric push rods (7) and several support rings (8). The inner sides of the several support rings (8) are slidably connected with locking shafts (9). The several small electric push rods (7) are fixedly connected to the ends of the several locking shafts (9). The two axial side walls of the screen cylinder (2) are fixedly connected with several fixing cylinders (10). The several locking shafts (9) are locked and engaged with the several fixing cylinders (10).

2. The Chinese herbal medicine drum sieve with replaceable sieve cylinder according to claim 1, characterized in that, The outer wall of the screening box (1) is fixedly connected to a fixed bracket, and a servo motor (11) is fixedly connected to the upper end of the fixed bracket. The output end of the servo motor (11) is fixedly connected to the end of one of the rotating shafts (4).

3. A Chinese herbal medicine drum sieve with replaceable sieve cylinders according to claim 1, characterized in that, The quick assembly and disassembly assembly also includes a displacement sensor (12) fixedly connected to the inner wall of the screening box (1). The displacement sensor (12) is used to monitor the height position of the screen cylinder (2) in real time. A PLC controller (13) is fixedly connected to the outer wall of the screening box (1). The PLC controller (13), several small electric push rods (7), the displacement sensor (12) and the external power supply form a closed control circuit.

4. A Chinese herbal medicine drum sieve with replaceable sieve cylinders according to claim 1, characterized in that, The top of the screening box (1) is hinged with two doors (14), and the upper surfaces of the two doors (14) are fixedly connected with handles. The screen cylinder (2) has a feeding port (15) on its circumferential side wall, and an arc-shaped sealing plate (16) is hinged to the feeding port (15) by a torsion spring.

5. A Chinese herbal medicine drum sieve with replaceable sieve cylinders according to claim 1, characterized in that, Both axial sidewalls of the screen cylinder (2) are fixedly connected with traction rods (17).

6. A Chinese herbal medicine drum sieve with replaceable sieve cylinders according to claim 1, characterized in that, The bottom of the screening box (1) is set in a conical structure, and the lower end face of the screening box (1) is provided with a discharge port (18).

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