A connecting rod for a tablet press feeder

Abstract

This application provides a connecting rod for a tablet press feeder, relating to the technical field of tablet presses. It includes a linkage rod, a drive shaft, and a first connecting mechanism. The first connecting mechanism comprises a first connecting rod, a second connecting rod, and a first connecting sleeve. Both the first and second connecting rods have mating surfaces on their inner sides. The first connecting sleeve is fitted over the first and second connecting rods, pressing their mating surfaces together. The first connecting rod is mounted on the linkage rod, and the second connecting rod is mounted on the drive shaft. By fitting the mating surfaces of the first and second connecting rods together and fitting the first connecting sleeve over them, the linkage rod and drive shaft can be installed. The first and second connecting rods rotate synchronously. The first connecting sleeve slides out from the connection point of the first and second connecting rods, allowing the first and second connecting rods to separate, thus facilitating disassembly of the linkage rod and drive shaft.

Description

Technical Field

[0001] This application relates to the technical field of tablet presses, and in particular to a connecting rod for a tablet press feeder. Background Technology

[0002] A tablet press is a mechanical device that compresses powdered or granular materials into tablets with a specific shape, size, weight, and hardness. The feeder fills a measured amount of material (usually a mixture of drug powder or granules and excipients) into a mold (die ring). Upper and lower punches apply immense pressure to the material within the die ring, causing it to plastically deform and bind tightly. Tablet presses are widely used in pharmaceuticals, food, chemicals, metallurgy, electronics, ceramics, and many other industries, but their most core and common application is in the pharmaceutical industry for producing tablets.

[0003] The existing tablet press feeders have the following main problems: they use chain, gear, and belt drives, and imbalances, wear, and poor meshing in the transmission system are transmitted to the feeder, affecting the stability of the scraper rotation and preventing the material from being evenly filled into the mold; the installation and disassembly of the transmission mechanism are unchanged, making it inconvenient to operate during feeder maintenance. Summary of the Invention

[0004] To address the deficiencies in the aforementioned background technology, a connecting rod for a tablet press feeder is proposed.

[0005] This application provides a connecting rod for a tablet press feeder, including a linkage rod and a drive shaft; it also includes a first connecting mechanism, which has a first connecting rod, a second connecting rod and a first connecting sleeve. The inner sides of the first connecting rod and the second connecting rod are provided with mating surfaces. The first connecting sleeve is sleeved on the first connecting rod and the second connecting rod and presses the mating surfaces of the first connecting rod and the second connecting rod together. The first connecting rod is located on the linkage rod and the second connecting rod is located on the drive shaft.

[0006] Preferably, the outer surfaces of the first connecting rod and the second connecting rod are smoothly joined in a cylindrical shape; the cross-section of the first connecting sleeve is annular, and the outer surfaces of both the first connecting rod and the second connecting rod are attached to the inner surface of the first connecting sleeve.

[0007] Preferably, both the first connecting rod and the second connecting rod are semi-cylindrical, and the bottom diameters of the first connecting rod and the second connecting rod are the same.

[0008] Preferably, the first connecting mechanism further includes a transition rod, which is cylindrical; the transition rod is located between the linkage rod and the first connecting rod, and the outer surface of the transition rod is smoothly connected to the outer surface of the first connecting rod; the first connecting sleeve is slidably sleeved on the transition rod.

[0009] Preferably, the first connecting mechanism further includes a card sleeve, the side of which has a card interface, and the card sleeve can be fastened to the transition rod through the card interface.

[0010] Preferably, the first connecting mechanism further includes a washer, and a positioning groove is provided on the outer side of the transition rod, with the washer located in the positioning groove and the outer side of the washer extending out of the positioning groove.

[0011] Preferably, the first connecting mechanism further includes a limiting rod, which is disposed between the second connecting rod and the drive shaft; the inner end of the limiting rod is provided with a limiting surface, and the first connecting sleeve can abut against the limiting surface.

[0012] Preferably, it further includes a driven shaft and a second connecting mechanism, with the linkage rod disposed between the driven shaft and the drive shaft, and the second connecting mechanism is used to connect the driven shaft and the linkage rod; the structure of the second connecting mechanism is the same as the structure of the first connecting mechanism.

[0013] The beneficial effects of this utility model are: The linkage rod and the drive shaft are connected by a first connecting mechanism, enabling a detachable connection between them and facilitating easy installation and disassembly. By fitting the mating surfaces of the first and second connecting rods together and then placing the first connecting sleeve over them, the linkage rod and drive shaft can be installed. At this point, the first and second connecting rods rotate synchronously, the motor drives the drive shaft to rotate, and the linkage rod rotates accordingly. Once the first connecting sleeve slides out from the connection point of the first and second connecting rods, the first and second connecting rods can be separated, completing the disassembly of the linkage rod and drive shaft. Attached Figure Description

[0014] To more clearly illustrate the technical solutions in the embodiments of this application, 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 application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0015] Figure 1 A schematic diagram of the connecting rod used in the feeder of a tablet press; Figure 2 This is a schematic diagram of the linkage. Figure 3 This is a schematic diagram of the motor and drive shaft; Figure 4 This is a diagram of a card holder.

[0016] Explanation of symbols in the diagram: 1 is the linkage rod; 2 is the drive shaft; 3 is the first connecting mechanism, 31 is the first connecting rod, 32 is the second connecting rod, 33 is the first connecting sleeve, 34 is the mating surface, 35 is the transition rod, 351 is the positioning groove, 36 is the sleeve, 361 is the snap-fit ​​interface, 37 is the washer, and 38 is the limiting rod. 4 is the driven shaft; 5 is the second connecting mechanism. Detailed Implementation

[0017] To make the technical problems, technical solutions, and beneficial effects to be solved by this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and are not intended to limit the scope of this application.

[0018] Example like Figures 1 to 4 As shown, a connecting rod for a tablet press feeder includes a linkage rod 1 and a drive shaft 2; it also includes a first connecting mechanism 3, which has a first connecting rod 31, a second connecting rod 32 and a first connecting sleeve 33. The inner sides of the first connecting rod 31 and the second connecting rod 32 are provided with mating surfaces 34. The first connecting sleeve 33 is sleeved on the first connecting rod 31 and the second connecting rod 32 and presses the mating surfaces 34 of the first connecting rod 31 and the second connecting rod 32 together; the first connecting rod 31 is provided on the linkage rod 1 and the second connecting rod 32 is provided on the drive shaft 2.

[0019] Linkage rod 1 and drive shaft 2 are connected by first connecting mechanism 3, achieving a detachable connection between linkage rod 1 and drive shaft 2, and facilitating installation and disassembly. By fitting the mating surfaces 34 of the first connecting rod 31 and the second connecting rod 32 together, and then placing the first connecting sleeve 33 over the first connecting rod 31 and the second connecting rod 32, the installation between linkage rod 1 and drive shaft 2 is completed. At this time, the first connecting rod 31 and the second connecting rod 32 rotate synchronously, the motor drives the drive shaft 2 to rotate, and linkage rod 1 will rotate along with it. The first connecting sleeve 33 slides out from the connection point of the first connecting rod 31 and the second connecting rod 32, allowing the first connecting rod 31 and the second connecting rod 32 to separate, completing the disassembly of linkage rod 1 and drive shaft 2, facilitating equipment maintenance and cleaning.

[0020] The outer surfaces of the first connecting rod 31 and the second connecting rod 32 are smoothly joined in a cylindrical shape, which facilitates the processing of the parts; the cross-section of the first connecting sleeve 33 is annular, and the outer surfaces of the first connecting rod 31 and the second connecting rod 32 are both in contact with the inner surface of the first connecting sleeve 33. The outer surfaces of the first connecting rod 31 and the second connecting rod 32 are fully in contact with the inner surface of the first connecting sleeve 33, thereby ensuring that the mating surfaces 34 of the first connecting rod 31 and the second connecting rod 32 are completely fitted together, thereby providing reliable power.

[0021] Both the first connecting rod 31 and the second connecting rod 32 are semi-cylindrical, and the bottom diameters of the first connecting rod 31 and the second connecting rod 32 are the same. The mating surfaces of the first connecting rod 31 and the second connecting rod 32 are rectangular. When rotating, the first connecting rod 31 and the second connecting rod 32 will only generate radial pressure and will not generate axial pressure, thereby avoiding axial swaying between the first connecting rod 31 and the second connecting rod 32.

[0022] The first connecting mechanism 3 also includes a transition rod 35, which is cylindrical. The transition rod 35 is located between the linkage rod 1 and the first connecting rod 31, and the outer side of the transition rod 35 is smoothly connected to the outer side of the first connecting rod 31. The first connecting sleeve 33 is slidably sleeved on the transition rod 35. By pushing the first connecting sleeve 33 from the transition rod 35 to the connection point of the first connecting rod 31 and the second connecting rod 32, the installation between the linkage rod 1 and the drive shaft 2 can be completed. By pushing the first connecting sleeve 33 back from the connection point of the first connecting rod 31 and the second connecting rod 32 to the transition rod 35, the connection between the linkage rod 1 and the drive shaft 2 can be completed, which is convenient to operate.

[0023] The first connecting mechanism 3 also includes a retaining sleeve 36, which has a retaining interface 361 on its side. The retaining sleeve 36 can be fastened to the transition rod 35 through the retaining interface 361. After the first connecting sleeve 33 is pushed from the transition rod 35 to the connection point of the first connecting rod 31 and the second connecting rod 32, the retaining sleeve 36 is fastened to the transition rod 35. This can prevent the first connecting sleeve 33 from sliding to the side of the transition rod 35 when the linkage rod 1 and the drive shaft 2 rotate, thereby ensuring the reliability of the connection between the linkage rod 1 and the drive shaft 2.

[0024] The first connecting mechanism 3 also includes a washer 37. A positioning groove 351 is provided on the outer side of the transition rod 35, and the washer 37 is disposed within the positioning groove 351, with its outer surface extending out of the positioning groove 351. The washer 37 provides radial pressure to the first connecting sleeve 33 and the retaining sleeve 36 fitted onto the transition rod 35, thereby providing axial friction and preventing the first connecting sleeve 33 and the retaining sleeve 36 from sliding freely along the axial direction. In this embodiment, the washer 37 is an O-ring made of rubber, but other materials with good flexibility and wear resistance can also be selected.

[0025] The first connecting mechanism 3 also includes a limiting rod 38, which is located between the second connecting rod 32 and the drive shaft 2. The inner end of the limiting rod 38 is provided with a limiting surface, and the first connecting sleeve 33 can abut against the limiting surface to prevent the first connecting sleeve 33 from continuing to slide from the connection between the first connecting rod 31 and the second connecting rod 32 toward the drive shaft 2, thereby ensuring the reliability of the connection between the first connecting rod 31 and the second connecting rod 32.

[0026] The tablet press feeder connecting rod also includes a driven shaft 4 and a second connecting mechanism 5. A linkage rod 1 is detachably located between the driven shaft 4 and the drive shaft 2. The second connecting mechanism 5 connects the driven shaft 4 and the linkage rod 1. The structure of the second connecting mechanism 5 is the same as that of the first connecting mechanism 3, allowing the linkage rod 1 to be easily removed for maintenance. In this embodiment, the driven shaft 4 drives the feeder, causing the scraper to rotate, so that the drug powder or granules can enter the mold cavity evenly for shaping.

[0027] The above-described embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application 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 do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this application, and should all be included within the protection scope of this application.

Claims

1. A connecting rod for a tablet press feeder comprising a link rod and a drive shaft, characterized in that, It also includes a first connecting mechanism, which has a first connecting rod, a second connecting rod and a first connecting sleeve. The inner sides of the first connecting rod and the second connecting rod are provided with mating surfaces. The first connecting sleeve is fitted over the first connecting rod and the second connecting rod and presses the mating surfaces of the first connecting rod and the second connecting rod together. The first connecting rod is provided on the linkage rod and the second connecting rod is provided on the drive shaft.

2. The connecting rod for a tablet press feeder according to claim 1, characterized in that, The outer surfaces of the first connecting rod and the second connecting rod are smoothly joined in a cylindrical shape; the cross-section of the first connecting sleeve is annular, and the outer surfaces of the first connecting rod and the second connecting rod are both attached to the inner surface of the first connecting sleeve.

3. The connecting rod for a tablet press feeder according to claim 2, wherein Both the first connecting rod and the second connecting rod are semi-cylindrical, and the bottom diameters of the first connecting rod and the second connecting rod are the same.

4. The connecting rod for a tablet press feeder according to any one of claims 2 to 3, characterized in that, The first connecting mechanism further includes a transition rod, which is cylindrical; the transition rod is disposed between the linkage rod and the first connecting rod, and the outer side of the transition rod is smoothly connected to the outer side of the first connecting rod; the first connecting sleeve is slidably sleeved on the transition rod.

5. The connecting rod for a tablet press feeder according to claim 4, wherein The first connecting mechanism also includes a card sleeve, the side of which has a card interface, and the card sleeve can be fastened to the transition rod through the card interface.

6. The connecting rod for a tablet press feeder according to claim 4, wherein The first connecting mechanism also includes a washer, and the outer side of the transition rod is provided with a positioning groove. The washer is disposed in the positioning groove, and the outer side of the washer extends out of the positioning groove.

7. The connecting rod for the feeder of a tablet press according to any one of claims 1 to 3, characterized in that, The first connecting mechanism further includes a limiting rod, which is disposed between the second connecting rod and the drive shaft; the inner end of the limiting rod is provided with a limiting surface, and the first connecting sleeve can abut against the limiting surface.

8. The connecting rod for a tablet press feeder according to any one of claims 1 to 3, characterized by It also includes a driven shaft and a second connecting mechanism. The linkage rod is disposed between the driven shaft and the drive shaft. The second connecting mechanism is used to connect the driven shaft and the linkage rod. The structure of the second connecting mechanism is the same as that of the first connecting mechanism.

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