Double-punching rotary tablet press

Abstract

The utility model belongs to the technical field of tablet presses, and particularly relates to a double-punch rotary tablet press which comprises an equipment body, a driving motor is fixed in the equipment body, a rotating piece rod is vertically and downwards fixed to the output end of the driving motor, and driven rods are vertically and rotatably connected to the positions, located on the left side and the right side of the rotating piece rod, in the equipment body. A first transmission shaft is fixed to the outer side of the driven rod, the first transmission shaft and the rotating piece rod are in transmission through a first transmission belt and used for driving the driven rod to rotate, a tabletting mechanism is installed at the bottom of the driven rod, and a locking mechanism is further installed in the equipment body and used for locking the two first transmission belts. And the locking mechanism comprises two rotating frames which are rotationally connected to the interior of the equipment body. According to the utility model, the consistency of tablet production and the stability of equipment can be improved, and the accurate synchronization of two tabletting systems is further ensured, so that the tablet quality is improved, the maintenance cost is reduced, and the operation safety is enhanced.

Description

Technical Field

[0001] The utility model belongs to the technical field of tablet presses, and in particular relates to a double-punch rotary tablet press. Background Art

[0002] In the pharmaceutical industry, tablet presses are key equipment for tablet production. To improve production efficiency and ensure consistent tablet quality, dual-punch rotary tablet presses are popular because they can compress two tablets simultaneously. Existing dual-punch rotary tablet presses typically use a common drive source to drive two independent rotary tablet pressing systems. This design aims to ensure that the two tablet pressing systems can simultaneously and evenly apply pressure to the material through synchronized motion, thereby producing tablets of consistent quality.

[0003] However, despite the existing technology striving for synchronization in design, some problems still exist in actual operation. For example, due to factors such as mechanical wear, material inhomogeneity, temperature changes, and differences in lubrication conditions, the two rotary tablet pressing systems may slip during operation. This slippage can cause the two tablet pressing systems to become out of sync, thereby affecting the consistency of key quality parameters such as tablet weight, hardness, and thickness. In addition, synchronization issues may lead to unstable equipment operation, increase maintenance costs, reduce production efficiency, and pose a threat to operator safety.

[0004] In view of this, the present application provides an improved double-punch rotary tablet press to solve the above-mentioned problems. Utility Model Content

[0005] The purpose of the utility model is to provide a double-punch rotary tablet press that can improve the consistency of tablet production and the stability of the equipment, thereby ensuring the precise synchronization of the two tablet pressing systems, thereby improving tablet quality, reducing maintenance costs, and enhancing operational safety.

[0006] The technical solutions adopted by this utility model are as follows:

[0007] A double-punch rotary tablet press comprises an equipment body, a driving motor is fixed inside the equipment body, a rotating rod is fixed vertically downward to the output end of the driving motor, and driven rods are vertically rotatably connected to the left and right sides of the rotating rod inside the equipment body, and a first transmission shaft is fixed to the outside of the driven rod. The first transmission shaft and the rotating rod are driven by a first transmission belt for driving the driven rod to rotate;

[0008] A pressing mechanism is installed at the bottom of the driven rod;

[0009] A locking mechanism is also installed inside the equipment body, and the locking mechanism is used to lock the two first transmission belts.

[0010] The locking mechanism includes two rotating frames rotatably connected to the inside of the device body, a rotating gear column is installed at the bottom of the rotating frame, and a clamping groove corresponding to the two rotating gear columns is provided on the outer side of the first transmission belt, and the two rotating gear columns are respectively engaged with the clamping grooves on the two first transmission belts;

[0011] A synchronous rotation mechanism is also installed on the outer side of the rotating frame, and the synchronous rotation mechanism is used to control the synchronous rotation of the two rotating frames.

[0012] The synchronous rotation mechanism includes a second transmission shaft fixed at the same height of the two rotating frames, and the two second transmission shafts are driven by a second transmission belt.

[0013] A first push rod motor is also installed inside the rotating frame. The travel rod of the first push rod motor is fixed vertically downward to the rotating gear column. The upper and lower lengths of the rotating gear column are greater than the upper and lower widths of the first transmission belt.

[0014] Two second push rod motors are also fixed inside the equipment body, and the two second push rod motors are arranged horizontally and located on the upper part of the first transmission belt. The travel rod of the second push rod motor is fixed with a tensioning roller, and the tensioning roller extends vertically into the inner side of the first transmission belt.

[0015] The technical effects achieved by this utility model are:

[0016] The utility model can solve the slipping problem of the existing double-punch rotary tablet press during synchronous movement, improve the consistency of tablet production and the stability of the equipment, and further ensure the precise synchronization of the two tablet pressing systems, thereby improving tablet quality, reducing maintenance costs, and enhancing operational safety. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a structural diagram of the utility model;

[0018] Figure 2 It is a structural diagram of the second transmission belt, the first transmission belt and the sheet pressing mechanism in the present utility model;

[0019] Figure 3 This is a schematic diagram of the structure between the first transmission belt, the rotating frame and the clamping slot in the present invention;

[0020] Figure 4 This is a schematic diagram of the structure between the rotating frame, the card slot and the rotating gear column in the utility model;

[0021] Figure 5 It is a cross-sectional view of the rotating frame in the utility model;

[0022] Figure 6 It is a structural diagram of the second push rod motor, the rotating wheel and the clamping slot in the utility model.

[0023] In the accompanying drawings, the components represented by the reference numerals are as follows:

[0024] 1. Equipment body; 2. Rotating rod; 3. Driving motor; 4. Driven rod; 5. First transmission shaft; 6. First transmission belt; 7. Pressing mechanism; 8. Rotating frame; 9. Rotating gear column; 10. Second transmission shaft; 11. Second transmission belt; 12. First push rod motor; 13. Card slot; 14. Second push rod motor; 15. Tensioning roller; 16. Rotating wheel. DETAILED DESCRIPTION

[0025] In order to make the purpose and advantages of the present invention more clearly understood, the present invention is described in detail below with reference to the following embodiments. It should be understood that the following text is only used to describe one or several specific embodiments of the present invention and does not strictly limit the scope of protection of the present invention.

[0026] like Figure 1-6 As shown, a double-punch rotary tablet press includes an equipment body 1, a driving motor 3 is fixed inside the equipment body 1, and the driving motor 3 is fixed to the equipment body 1 through a horizontal plate. A rotating rod 2 is fixed vertically downward at the output end of the driving motor 3. A driven rod 4 is vertically rotatably connected to the left and right sides of the rotating rod 2 inside the equipment body 1, and a first transmission shaft 5 is fixed to the outside of the driven rod 4. The first transmission shaft 5 and the rotating rod 2 are driven by a first transmission belt 6 for driving the driven rod 4 to rotate;

[0027] A sheet pressing mechanism 7 is installed at the bottom of the driven rod 4;

[0028] When it is necessary to press materials such as medicinal powder into tablets, the tablet pressing mechanism 7 can be started so that the tablet pressing mechanism 7 can press downward and press the medicinal powder into tablets. The output end of the driving motor 3 drives the rotating rod 2 to rotate, and then drives the two driven rods 4 to rotate through the transmission of the first transmission belt 6, so that the tablet pressing mechanism 7 can rotate during pressing, so that the mold at the bottom of the tablet pressing mechanism 7 can continuously go through multiple processes such as feeding, tableting and tableting, thereby realizing efficient continuous production;

[0029] The above principle is an existing technology with relatively mature applications in the fields of tablet presses, so I will not elaborate on it here.

[0030] A locking mechanism is also installed inside the device body 1 , and the locking mechanism is used to lock the two first transmission belts 6 .

[0031] Refer to the attached Figure 3-4The locking mechanism includes two rotating frames 8 rotatably connected to the inside of the device body 1, a rotating gear column 9 is installed at the bottom of the rotating frame 8, and a card slot 13 corresponding to the two rotating gear columns 9 is provided on the outer side of the first transmission belt 6, and the two rotating gear columns 9 are respectively engaged with the card slots 13 on the two first transmission belts 6;

[0032] When the rotating gear column 9 and the card slot 13 are engaged with each other, the first transmission belt 6 can be pressed inward, thereby making the engagement effect of the rotating gear column 9 and the card slot 13 better;

[0033] The outer side of the rotating frame 8 is also equipped with a synchronous rotating mechanism, which is used to control the synchronous rotation of the two rotating frames 8. Figure 4 The synchronous rotation mechanism includes a second transmission shaft 10 fixed at the same height of the two rotating frames 8, and the two second transmission shafts 10 are driven by a second transmission belt 11;

[0034] When the device is running, the slot 13 on the first transmission belt 6 engages with the rotating gear column 9, so that when the first transmission belt 6 rotates, the two rotating frames 8 and the rotating gear column 9 are driven to rotate synchronously. When the rotating rod 2 stops, one of the rotating gear columns 9 that is engaged with the first transmission belt 6 stops rotating due to the first transmission belt 6 stopping, thereby driving the other rotating gear column 9 to stop. This rotating gear column 9 is engaged with the first transmission belt 6 on it, so that the two first transmission belts 6 stop synchronously, thereby ensuring the accuracy of the device's stoppage and ensuring the consistency of the quality of the tablets.

[0035] Refer to the attached Figure 5 A first push rod motor 12 is also installed inside the rotating frame 8. The stroke rod of the first push rod motor 12 is vertically fixed downward to the rotating gear column 9. The upper and lower lengths of the rotating gear column 9 are greater than the upper and lower widths of the first transmission belt 6.

[0036] When the rotating gear column 9 is engaged with the slot 13, in order to prevent severe wear, the first push rod motor 12 can be driven so that the first push rod motor 12 controls the height of the rotating gear column 9, thereby ensuring that positions of the rotating gear column 9 at different heights are engaged with the slot 13, delaying the degree of wear of the rotating gear column 9 and ensuring the life of the device.

[0037] Refer to the attached Figure 6 Two second push rod motors 14 are also fixed inside the equipment body 1, and the two second push rod motors 14 are arranged horizontally and located on the upper part of the first transmission belt 6. The travel rod of the second push rod motor 14 is fixed with a tensioning roller 15, and the tensioning roller 15 vertically extends into the inner side of the first transmission belt 6;

[0038] When the first transmission belt 6 is running, the second push rod motor 14 can be driven, so that the second push rod motor 14 drives the tensioning roller 15 to move back and forth, and contact the first transmission belt 6, and stretch the first transmission belt 6 so that the first transmission belt 6 can be tensioned, thereby ensuring the transmission effect of the first transmission belt 6 on the rotating member rod 2 and the driven rod 4. The outer side of the tensioning roller 15 is rotatably connected to the rotating wheel 16. Through the setting of the rotating wheel 16, the rotating wheel 16 and the first transmission belt 6 are in contact with each other, and the rotation effect between the rotating wheel 16 and the tensioning roller 15 can reduce the friction between the rotating wheel 16 and the first transmission belt 6.

[0039] The above description is merely a preferred embodiment of the present invention. It should be noted that those skilled in the art may make various improvements and modifications without departing from the principles of the present invention, and such improvements and modifications should be considered within the scope of protection of the present invention. Structures, devices, and operating methods not specifically described or explained in this invention shall, unless otherwise specified or limited, be implemented in accordance with conventional means in the art.

Claims

1. A double-punch rotary tablet press, comprising a device body (1), characterized in that: A driving motor (3) is fixed inside the device body (1), a rotating rod (2) is fixed vertically downward at the output end of the driving motor (3), a driven rod (4) is vertically rotatably connected inside the device body (1) and on both the left and right sides of the rotating rod (2), and a first transmission shaft (5) is fixed outside the driven rod (4), and a first transmission belt (6) is used to transmit power between the first transmission shaft (5) and the rotating rod (2) for driving the driven rod (4) to rotate; A sheet pressing mechanism (7) is installed at the bottom of the driven rod (4); A locking mechanism is also installed inside the equipment body (1), and the locking mechanism is used to lock the two first transmission belts (6).

2. A double punch rotary tablet press according to claim 1, characterized in that: The locking mechanism comprises two rotating frames (8) rotatably connected to the inside of the device body (1), a rotating gear column (9) is installed at the bottom of the rotating frame (8), and a clamping groove (13) corresponding to the two rotating gear columns (9) is provided on the outer side of the first transmission belt (6), and the two rotating gear columns (9) are respectively engaged with the clamping grooves (13) on the two first transmission belts (6); A synchronous rotation mechanism is also installed on the outer side of the rotating frame (8), and the synchronous rotation mechanism is used to control the synchronous rotation of the two rotating frames (8).

3. A double punch rotary tablet press according to claim 2, characterized in that: The synchronous rotation mechanism comprises a second transmission shaft (10) fixed at the same height of the two rotating frames (8), and the two second transmission shafts (10) are driven by a second transmission belt (11).

4. A double punch rotary tablet press according to claim 2, characterized in that: A first push rod motor (12) is also installed inside the rotating frame (8), and a travel rod of the first push rod motor (12) is fixed vertically downward to the rotating gear column (9), and the upper and lower lengths of the rotating gear column (9) are greater than the upper and lower widths of the first transmission belt (6).

5. The double punch rotary tablet press according to claim 1, characterized in that: Two second push rod motors (14) are also fixed inside the equipment body (1), and the two second push rod motors (14) are arranged horizontally and located on the upper part of the first transmission belt (6). The travel rod of the second push rod motor (14) is fixed with a tensioning roller (15), and the tensioning roller (15) vertically extends into the inner side of the first transmission belt (6).

6. A double punch rotary tablet press according to claim 5, characterized in that: The outer side of the tensioning roller (15) is rotatably connected to a rotating wheel (16).

Images