A method and device for crushing raw materials for the production of metformin hydrochloride sustained-release tablets

Abstract

The application discloses a raw material smashing device for metformin hydrochloride sustained-release tablet production and relates to the technical field of smashing processing. The raw material smashing device comprises a smashing assembly which is used for smashing raw materials, and a fixing assembly and a pre-installation assembly are arranged in the smashing assembly. When the raw material smashing device is used, the smashing hammer is pre-installed through the pre-installation assembly, a hydraulic rod is started, a moving rod is pulled to move to the left side, the fixed plate and the fixed rod are driven to move together, the L-shaped rod is in contact with the fixed plate on the right side, the L-shaped rod is driven to be inserted into the clamping hole, the fixed plate on the right side limits the L-shaped rod, the L-shaped rod limits the connecting rod, the smashing hammer is limited, and multiple hammer heads are quickly installed and fixed under the cooperation of the fixing assembly and the pre-installation assembly, so that the bolts are not required to be installed one by one, the bolts are prevented from being loosened and falling off due to impact force, and the hammer heads are prevented from being loosened.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of crushing processing, in particular to a raw material crushing method and device for metformin hydrochloride sustained-release tablets production. BACKGROUND

[0002] Metformin hydrochloride sustained-release tablets are a commonly used oral hypoglycemic drug, mainly used for the treatment of type 2 diabetes. It effectively regulates blood glucose levels by reducing glucose production in the liver and improving insulin sensitivity in the body. In the production process of metformin hydrochloride sustained-release tablets, the raw materials usually need to be crushed. The purpose of crushing is to adjust the size of the raw material particles to a suitable range to ensure uniform mixing, smooth tabletting and effective drug release. Hammer crusher has high crushing efficiency and can crush the raw materials to the required particle size range; it can adapt to raw materials of different hardness; and the operation is relatively simple and the cost is relatively economical.

[0003] In the prior art, the raw material crushing device for metformin hydrochloride sustained-release tablet production generally installs the hammer head on the outer surface of the rotor through bolts during use, and rotates the hammer head by the rotor to crush the raw materials. During long-term operation, the hammer head is repeatedly impacted by the materials and vibrates. This continuous impact force can gradually loosen the bolts, further causing the hammer head to loosen, increasing the probability of collision between the hammer head and other components, affecting the service life of the equipment, and increasing the probability of dust entering the bolt connection, affecting the fastening effect of the bolts and exacerbating the loosening degree of the hammer head.

[0004] Therefore, we propose a raw material crushing device for metformin hydrochloride sustained-release tablet production to solve the problems raised in the background art. SUMMARY

[0005] The purpose of the present application is to provide a raw material crushing device for metformin hydrochloride sustained-release tablet production to solve the problems raised in the background art that the hammer head is repeatedly impacted by the materials and vibrates during use of the raw material crushing device for metformin hydrochloride sustained-release tablet production. This continuous impact force can gradually loosen the bolts, further causing the hammer head to loosen, increasing the probability of collision between the hammer head and other components, affecting the service life of the equipment, and increasing the probability of dust entering the bolt connection, affecting the fastening effect of the bolts and exacerbating the loosening degree of the hammer head.

[0006] To achieve the above-mentioned purpose, the present application provides the following technical scheme: a raw material crushing device for metformin hydrochloride sustained-release tablet production, comprising a crushing assembly, the crushing assembly is used for crushing raw materials, the inside of the crushing assembly is provided with a fixing assembly and a pre-installation assembly, the pre-installation assembly is used for pre-installing a hammer head, and the fixing assembly is used for fixing the hammer head.

[0007] The pulverizing assembly comprises a rack, a pulverizing box is arranged at the top of the rack near one side, and a driving system is arranged at the top of the rack near the other side;

[0008] The fixing assembly comprises a box cover, an installation plate is fixedly arranged on the outer surface of the box cover, a hydraulic rod is fixedly arranged in the installation plate, a moving rod is fixedly arranged at the output end of the hydraulic rod, a rotating drum is movably arranged on the outer surface of the moving rod, a plurality of insertion holes are arranged on the outer surface of the rotating drum, a plurality of fixing plates are fixedly arranged on the outer surface of the moving rod, an annular groove is arranged on one side of each of the plurality of fixing plates, two fixing rods are movably arranged in each group of adjacent two annular grooves, an L-shaped rod is movably arranged on the outer surface of each of the plurality of fixing rods, and a supporting rod is fixedly arranged on the inner wall of the rotating drum near the plurality of insertion holes.

[0009] Preferably, one end of each of the plurality of supporting rods is movably arranged in the plurality of L-shaped rods, a plurality of positioning holes are equidistantly arranged on one side of the outer surface of the box cover, the box cover is arranged on one side of the outer surface of the pulverizing box through bolts, one end of the rotating drum is movably arranged on the outer surface of the box cover, two supporting plates are fixedly arranged on the outer surface of one end of the rotating drum, a limiting ring is movably arranged in each of the two supporting plates, and the limiting rings are fixedly arranged on the outer surfaces of the two sides of the box cover.

[0010] Preferably, four limiting grooves are arranged on one side of the supporting plate, a limiting plate is fixedly arranged on the outer surface of the moving rod near the hydraulic rod, four limiting rods are fixedly arranged on one side of the limiting plate, the four limiting rods are movably arranged in the four limiting grooves, a supporting ring is movably arranged on the outer surface of the moving rod away from the hydraulic rod, and the supporting ring is fixedly arranged in the rotating drum.

[0011] Preferably, the pre-installation assembly comprises a rotor body, two positioning grooves are arranged on the outer surface of the rotor body, a plurality of sealing holes are arranged on the inner walls of the two positioning grooves, a sealing ring is fixedly connected to the inner wall of each of the plurality of sealing holes, a plurality of mark grooves are equidistantly arranged on the outer surface of the rotor body, and seven pulverizing hammers are movably arranged on the outer surface of the rotor body.

[0012] Preferably, the outer surfaces of the two sets of positioning columns are respectively movably embedded in the interior of the two positioning grooves. Each of the seven crushing hammers has an adjustment groove inside. Each of the seven crushing hammers has four movable holes on its inner wall. Each of the seven adjustment grooves has an annular plate movably embedded inside. Each of the seven annular plates has two arc-shaped blocks fixedly installed on its inner wall. Each of the seven annular plates has two connecting strips 314 fixedly installed on one side of its outer surface. Each of the seven crushing hammers has two connecting grooves near its edge on one side of its outer surface. Each of the multiple connecting grooves has sealing gaskets fixedly connected to both sides on each side. Each of the multiple sealing gaskets has two adjacent sealing gaskets forming a group.

[0013] Preferably, the outer surface and inner wall of the plurality of connecting strips are in contact with each group of sealing gaskets. Two connecting strips distributed around the circumference of the plurality of connecting strips form a group. A rotating block is fixedly installed on one side of the outer surface of each group of connecting strips. Two arc-shaped plates are fixedly installed inside the seven adjusting grooves. Two moving holes are opened on one side of the outer surface of the plurality of arc-shaped plates. Connecting rods are movably embedded inside the plurality of moving holes. Connecting blocks are fixedly installed on the outer surface of the plurality of connecting rods near one end. Springs are movably sleeved on the outer surface of the plurality of connecting rods. Locking holes are opened on the outer surface of the plurality of connecting rods near the other end.

[0014] Preferably, one end of each of the multiple springs is fixedly installed on the outer surface of one side of the multiple connecting blocks. Two springs in each horizontal direction form a group. The other end of each group of springs is fixedly installed on the outer surface of the multiple arc-shaped plates. A slider is fixedly installed on the outer surface of each of the multiple connecting blocks. Two sliding grooves are opened on both sides inside the seven adjustment grooves. The outer surfaces of the multiple sliders are movably embedded in the interior of the multiple sliding grooves. Two connecting rods in each horizontal direction form a group. One end of each group of connecting rods contacts the inner wall of the multiple arc-shaped blocks.

[0015] Preferably, one end of the rotor body extends movably through to the outer surface of the other side of the crushing chamber, one end of the rotor body is fixedly connected to the output end of the drive system, the other end of the rotor body is in contact with the outer surface of another support plate, the outer surface of the rotating drum is movably embedded inside the rotor body, and the other end of the rotating drum is movably embedded on one side inside the rotor body.

[0016] Preferably, a feed pipe is fixedly connected to the top of the crushing box near the rear surface. An installation hole is provided on the top of the crushing box, and a sealing plate is installed inside the installation hole. The width of the outer surface of the sealing plate matches the width of the inner surface of the installation hole. A sealing cover is fixedly installed on the top of the sealing plate, and the sealing cover is connected to the crushing box by bolts. Multiple positioning rods are fixedly installed on one outer surface of the crushing box, and the outer surfaces of the multiple positioning rods are movably embedded in multiple positioning holes. A screen is installed inside the crushing box, and a control system is installed inside the frame. A hopper is fixedly installed on the top surface of the frame near one side, and the interior of the hopper is connected to the interior of the crushing box.

[0017] A method of using a raw material pulverizing device for the production of metformin hydrochloride sustained-release tablets includes the following steps:

[0018] S1. Align the positioning pin with the positioning groove, then push the crushing hammer to slide on the outer surface of the rotor body, align the positioning hole with the positioning rod, align the rotating drum with one end of the rotor body, and then push the box cover to allow the rotating drum to enter the rotor body.

[0019] S2. Move the crushing hammer to the marking groove through the mounting hole, then rotate the rotating block. The connecting strip drives the annular plate and two arc blocks to rotate, thereby pushing the four connecting rods through the sealing ring and the insertion hole into the rotating drum for pre-installation of the crushing hammer.

[0020] S3. Activate the hydraulic rod and pull the moving rod to the left, which will move the fixed plate and the fixed rod together, so that the L-shaped rod contacts the fixed plate on the right and inserts the L-shaped rod into the locking hole to fix the crusher.

[0021] S4. The raw material is conveyed into the crushing box through the feed pipe. The rotor body is started to rotate by the drive system, which drives multiple crushing hammers to rotate. The raw material enters the crushing box and is crushed by the impact of the high-speed rotating crushing hammers. The crushed raw material gains kinetic energy from the crushing hammers and rushes at high speed towards the inner lining baffle and screen of the crushing box. At the same time, the materials collide with each other and are crushed multiple times. The crushed raw material falls into the feed hopper for feeding.

[0022] Compared with the prior art, the beneficial effects of the present invention are:

[0023] 1. In use, the present invention pre-installs the crushing hammer using the pre-installation assembly. Activating the hydraulic rod pulls the moving rod to the left, causing the fixing plate and fixing rod to move together. This brings the L-shaped rod into contact with the right-side fixing plate, causing it to insert into the locking hole. The right-side fixing plate limits the L-shaped rod, and the L-shaped rod limits the connecting rod, thus limiting the crushing hammer. With the cooperation of the fixing assembly and the pre-installation assembly, multiple hammerheads can be quickly installed and fixed without the need for individual bolt installation, avoiding the possibility of subsequent bolts loosening or falling off due to impact forces, which could lead to the hammerheads becoming loose.

[0024] 2. When using this invention, align the positioning pin with the positioning groove, then push the crushing hammer to slide on the outer surface of the rotor body, align the positioning hole with the positioning rod, align the rotating drum with one end of the rotor body, then push the box cover to allow the rotating drum to enter the rotor body, move the crushing hammer to the marking groove through the mounting hole, then rotate the rotating block, and drive the annular plate and two arc blocks to rotate through the connecting strip, thereby pushing the four connecting rods through the sealing ring and the insertion hole into the rotating drum for pre-installation of the crushing hammer.

[0025] 3. In use, the raw materials are fed into the crushing chamber through the feed pipe. The drive system starts the rotor body to rotate, driving multiple crushing hammers to crush the raw materials. The crushed materials pass through a screen and fall into the discharge hopper for feeding. Larger materials are further crushed by the impact of the crushing hammers on the screen, thus obtaining a product with the desired particle size. Before use, the fixing assembly uses a limiting plate and a limiting rod to limit the support plate, thereby limiting the rotating drum and preventing it from rotating automatically, which could cause the insertion hole to rotate and affect the fixed installation of the crushing hammers. Attached Figure Description

[0026] Figure 1 This is a front perspective view of a raw material pulverizing device for the production of metformin hydrochloride sustained-release tablets according to the present invention;

[0027] Figure 2 This is a side perspective view of a raw material pulverizing device for the production of metformin hydrochloride sustained-release tablets according to the present invention;

[0028] Figure 3 This is a cross-sectional view of the raw material pulverizing device for the production of metformin hydrochloride sustained-release tablets according to the present invention.

[0029] Figure 4 This is a cross-sectional view of the pulverizing component in a raw material pulverizing device for the production of metformin hydrochloride sustained-release tablets according to the present invention.

[0030] Figure 5 This is a cross-sectional view of the pulverizing box in a raw material pulverizing device for the production of metformin hydrochloride sustained-release tablets according to the present invention.

[0031] Figure 6 This is a cross-sectional view of the fixed component in a raw material pulverizing device for the production of metformin hydrochloride sustained-release tablets according to the present invention.

[0032] Figure 7 This is a cross-sectional view of a pre-installed component in a raw material pulverizing device for the production of metformin hydrochloride sustained-release tablets according to the present invention.

[0033] Figure 8 This is a cross-sectional view of the rotor body in a raw material pulverizing device for the production of metformin hydrochloride sustained-release tablets according to the present invention.

[0034] Figure 9 This is a cross-sectional view of the crushing hammer in a raw material crushing device for the production of metformin hydrochloride sustained-release tablets according to the present invention.

[0035] Figure 10 This is a cross-sectional view of the rotating drum in a raw material pulverizing device for the production of metformin hydrochloride sustained-release tablets according to the present invention.

[0036] Figure 11 This is a schematic diagram showing the structure of the connecting rod in a raw material pulverizing device for the production of metformin hydrochloride sustained-release tablets according to the present invention.

[0037] Figure 12 This is a cross-sectional view of the annular plate in a raw material pulverizing device for the production of metformin hydrochloride sustained-release tablets according to the present invention.

[0038] Figure 13 This is a cross-sectional view of the adjusting tank in a raw material pulverizing device for the production of metformin hydrochloride sustained-release tablets according to the present invention.

[0039] In the picture:

[0040] 1. Crushing assembly; 101. Frame; 102. Control system; 103. Drive system; 104. Crushing box; 105. Feed pipe; 106. Sealing cover; 107. Discharge hopper; 108. Positioning rod; 109. Sealing plate; 110. Screen; 111. Mounting hole; 2. Fixing assembly; 201. Box cover; 202. Mounting plate; 203. Positioning hole; 204. Hydraulic rod; 205. Moving rod; 206. Limiting plate; 207. Rotary drum; 208. Support ring; 209. Support plate; 210. Limiting ring; 211. Limiting rod; 212. Limiting groove; 213. Fixing plate; 214. Insertion hole; 215. L 216. Fixed rod; 217. Support rod; 218. Annular groove; 3. Pre-installation assembly; 301. Rotor body; 302. Crusher; 303. Positioning groove; 304. Marking groove; 305. Sealing hole; 306. Sealing ring; 307. Annular plate; 308. Sealing gasket; 309. Arc block; 310. Arc plate; 311. Positioning column; 312. Movable hole; 313. Rotating block; 314. Connecting strip; 315. Connecting groove; 316. Connecting block; 317. Connecting rod; 318. Spring; 319. Slide groove; 320. Sliding block; 321. Locking hole; 322. Moving hole; 323. Adjustment groove. Detailed Implementation

[0041] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0042] Example 1: Please refer to Figures 1-13As shown, the present invention provides a technical solution: a raw material pulverizing device for the production of metformin hydrochloride sustained-release tablets, comprising a pulverizing component 1 for pulverizing raw materials, a fixing component 2 and a pre-installation component 3 internally arranged, the pre-installation component 3 for pre-installing hammers, and the fixing component 2 for fixing the hammers; the pulverizing component 1 includes a frame 101, a pulverizing box 104 is arranged on the top of the frame 101 near one side, and a drive system 103 is arranged on the top of the frame 101 near the other side; the fixing component 2 includes a box cover 201, an mounting plate 202 is fixedly installed on the outer surface of the box cover 201, a hydraulic rod 204 is fixedly installed inside the mounting plate 202, and a moving rod 205 is fixedly installed at the output end of the hydraulic rod 204. A rotating cylinder 207 is movably fitted onto the outer surface of the movable rod 205. Multiple insertion holes 214 are formed on the outer surface of the rotating cylinder 207. Multiple fixing plates 213 are fixedly installed on the outer surface of the movable rod 205. Annular grooves 218 are formed on one side of each of the fixing plates 213. Each pair of adjacent annular grooves 218 forms a group. Two fixing rods 216 are movably embedded inside each group of annular grooves 218. L-shaped rods 215 are movably fitted onto the outer surface of each fixing rod 216. Support rods 217 are fixedly installed on the inner wall of the rotating cylinder 207 near the insertion holes 214. One end of each support rod 217 is movably embedded inside the L-shaped rods 215. Multiple fixed... The cover 201 is bolted to one side of the outer surface of the crushing chamber 104 via a hole 203. One end of the rotating drum 207 extends movably through to the outer surface of the cover 201. Two support plates 209 are fixedly installed on one end of the outer surface of the rotating drum 207. Limiting rings 210 are movably fitted inside each of the two support plates 209. One side of the outer surface of the two limiting rings 210 is fixedly installed on both sides of the outer surface of the cover 201. Four limiting grooves 212 are formed on one side of the outer surface of one support plate 209. A limiting plate 206 is fixedly installed on the outer surface of the moving rod 205 near the hydraulic rod 204. Four limiting rods 211 are fixedly installed on one side of the outer surface of the limiting plate 206. The outer surfaces of the four limiting rods 211 are movably embedded in the four limiting grooves 212. Inside component 12, a support ring 208 is movably fitted onto the outer surface of the moving rod 205 away from the hydraulic rod 204. The outer surface of the support ring 208 is fixedly installed inside the rotating drum 207. The pre-installed assembly 3 includes a rotor body 301. Two positioning grooves 303 are formed on the outer surface of the rotor body 301. Multiple sealing holes 305 are formed on the inner wall of each of the two positioning grooves 303. Sealing rings 306 are fixedly connected to the inner wall of each of the multiple sealing holes 305. Multiple marking grooves 304 are equidistantly formed on the outer surface of the rotor body 301. Seven crushing hammers 302 are movably fitted onto the outer surface of the rotor body 301. Two positioning posts 311 are fixedly installed on the inner wall of each of the seven crushing hammers 302. The multiple positioning posts 311 are arranged in groups of seven laterally distributed positioning posts 311.The outer surfaces of the two sets of positioning posts 311 are respectively movably embedded in the interiors of the two positioning slots 303. Each of the seven crushing hammers 302 has an adjustment slot 323 inside. Each of the seven crushing hammers 302 has four movable holes 312 on its inner wall. Each of the seven adjustment slots 323 has a ring plate 307 movably embedded inside. Each of the seven ring plates 307 has two arc-shaped blocks 309 fixedly installed on its inner wall. Each of the seven ring plates 307 has two connecting strips 314 fixedly installed on one outer surface. Each of the seven crushing hammers 302 has two connecting slots 315 near the edge on one outer surface. The two sides of each of the multiple connecting slots 315 are fixedly connected. There are sealing gaskets 308, with each pair of adjacent sealing gaskets 308 forming a group. The outer surface and inner wall of multiple connecting strips 314 are in contact with each group of sealing gaskets 308. Two connecting strips 314 distributed circumferentially form a group. A rotating block 313 is fixedly installed on one side of the outer surface of each group of connecting strips 314. Two arc-shaped plates 310 are fixedly installed inside each of the seven adjusting grooves 323. Two moving holes 322 are formed on one side of the outer surface of each of the arc-shaped plates 310. Connecting rods 317 are movably embedded inside each of the moving holes 322. The outer surface of each connecting rod 317 is close to a... Each end is fixedly installed with a connecting block 316. Springs 318 are movably fitted onto the outer surfaces of multiple connecting rods 317. A locking hole 321 is provided near the other end of each connecting rod 317. One end of each spring 318 is fixedly installed on one side of the outer surface of each connecting block 316. Two springs 318 are grouped together horizontally. The other end of each group of springs 318 is fixedly installed on the outer surface of multiple arc-shaped plates 310. A slider 320 is fixedly installed on the outer surface of each connecting block 316. Two sliding grooves 319 are provided on both sides inside the seven adjusting grooves 323. Multiple sliders 320... The outer surface of the rotor 301 is movably embedded inside multiple sliding grooves 319. Multiple connecting rods 317 are grouped in pairs laterally. One end of each group of connecting rods 317 contacts the inner wall of multiple arc-shaped blocks 309. One end of the rotor body 301 movably extends to the other outer surface of the crushing chamber 104. One end of the rotor body 301 is fixedly connected to the output end of the drive system 103. The other end of the rotor body 301 contacts the outer surface of another support plate 209. The outer surface of the rotating drum 207 is movably embedded inside the rotor body 301, and the other end of the rotating drum 207 is movably embedded on one side inside the rotor body 301.

[0043] In this embodiment, during use, the drive system 103, the hydraulic rod 204, and the control system 102 are electrically connected, such as... Figure 8As shown, two marking grooves 304 that can form a ring are grouped together, totaling seven groups. Four sealing holes 305 near one group of marking grooves 304 form another group, also totaling seven groups. Four vertical insertion holes 214 form another group, totaling seven groups. The seven groups of insertion holes 214 are aligned with the seven groups of sealing holes 305. Vertical L-shaped rods 215 form another group, totaling seven groups. Four horizontal fixing plates 213 form another group, totaling seven groups. Four connecting rods 317 inside each adjusting groove 323 form another group, totaling seven groups. Two connecting grooves 315 are opened on one side of the outer surface of each of the seven crushing hammers 302 near the edge, totaling fourteen connecting grooves 315. Each connecting groove 315 has sealing gaskets 308 connected to the inner walls on both sides. Two sealing gaskets 308 in the same connecting groove 315 are in contact with each other. A connecting strip 314 is movably embedded between the two sealing gaskets 308. The position of the connecting strip 314 will separate the two sealing gaskets 308, while the parts of the two sealing gaskets 308 that are not in contact with the connecting strip 314 will contact each other. The sealing gaskets 308 have a certain degree of elasticity, facilitating the rotation of the connecting strip 314 between the two sealing gaskets 308. An arrow indicating rotation adjustment is provided on one outer surface of each crushing hammer 302, and an indicator arrow is provided on each rotating block 313, such as... Figure 8 As shown, to facilitate the adjustment of the position of the rotating block 313 by the staff, two fixing plates 213 are provided on the outer surface of each L-shaped rod 215. The L-shaped rod 215 contacts the fixing plate 213 on the left side, as shown. Figure 10As shown. First, slide the two positioning pins 311 inside the crusher 302 into the two positioning slots 303, so that the crusher 302 slides onto the outer surface of the rotor body 301, with the side marked with the arrow facing left. Place all seven crushers 302 onto the outer surface of the rotor body 301 in sequence. Then, keep the cover 201 vertical and align the positioning hole 203 with the positioning rod 108. At this point, the rotating drum 207 will be aligned with one end of the rotor body 301. Next, move the cover 201 to install it on the outer surface of the crushing box 104 and tighten it with bolts. Simultaneously, the rotating drum 207 is pushed into the rotor body 301. Then, adjust the position of the seven crushers 302 through the mounting hole 111, according to the position of the seven sets of marking slots 304. Slide the seven crushing hammers 302 to move them to the seven sets of marking grooves 304. These seven sets of connecting rods 317 are aligned with the positions of the seven sets of sealing holes 305 and the seven sets of insertion holes 214. Then, rotate the seven rotating blocks 313 sequentially according to the direction indicated by the arrows on the side of the crushing hammers 302. The rotation of the rotating blocks 313 causes the two connecting strips 314 to rotate inside the corresponding sealing gaskets 308, thus separating the two contacting sealing gaskets 308. The two sealing gaskets 308 not in contact with the connecting strips 314 then re-adhere to each other due to their own elasticity (the contact between the connecting strips 314 and the sealing gaskets 308 is relatively tight, requiring external rotational force to rotate the connecting strips 314). This then drives the annular plate 307 to adjust... The rotation inside groove 323 further drives the two arc-shaped blocks 309 to rotate simultaneously at one end of the four connecting rods 317, causing the connecting rods 317 to move from the deep part inside the arc-shaped blocks 309 to the shallow part. This pushes the four connecting rods 317 through the moving hole 322, the sealing ring 306, and the insertion hole 214 towards the moving rod 205, and drives the connecting block 316 to move together. At the same time, the spring 318 is compressed and contracted together. When the rotating block 313 can no longer rotate, the connecting rod 317 contacts the shallowest part of the arc-shaped block 309, and one end of the connecting rod 317 moves into the inside of the rotating drum 207. The locking hole 321 moves to the L-shaped rod 215, and the spring 318 is compressed and fully contracted together, thereby pre-installing the crushing hammer 302 on the rotating drum 207. Repeat the above operation on the outer surface of the sub-body 301 to pre-install other crushing hammers 302. Then, install the sealing cover 106 at the mounting hole 111 and seal the mounting hole 111 with the sealing plate 109 to avoid affecting subsequent crushing processing. Finally, start the hydraulic rod 204 to pull the moving rod 205 to move to the left inside the rotating drum 207 and support ring 208, and drive the fixing plate 213 and fixing rod 216 to move together, so that the L-shaped rod 215 separates from the left fixing plate 213 and gradually contacts the right fixing plate 213. Thus, under the movement of the fixing plate 213, the L-shaped rod 215 moves on the outer surface of the support rod 217. When the hydraulic rod 204 automatically closes, the L-shaped rod 215 is just inserted into the locking hole 321.The right-side fixing plate 213 limits the L-shaped rod 215, which in turn limits the connecting rod 317, thus limiting the pulverizing hammer 302. With the cooperation of the fixing component 2 and the pre-installation component 3, multiple hammers can be quickly installed and fixed without the need for individual bolt installation. This avoids the possibility of bolts loosening or falling off due to impact forces, which would otherwise cause the hammers to loosen. This solves the problem in the raw material pulverizing device used in the production of metformin hydrochloride sustained-release tablets, where repeated impacts from materials cause vibrations in the hammers, gradually loosening the bolts and further loosening the hammers. This increases the likelihood of the hammers colliding with other components, affecting the equipment's lifespan, and also increases the probability of dust entering the bolt connections, affecting the bolt tightening effect and exacerbating the loosening of the hammers.

[0044] Example 2: Figures 1-6 As shown, the device includes a crushing assembly 1 for crushing raw materials. The crushing assembly 1 contains a fixing assembly 2 and a pre-installation assembly 3. The pre-installation assembly 3 is used for pre-installing hammers, and the fixing assembly 2 is used to fix the hammers. The crushing assembly 1 includes a frame 101. A crushing box 104 is located near one side of the top of the frame 101, and a drive system 103 is located near the other side of the top of the frame 101. A feed pipe 105 is fixedly connected to the top of the crushing box 104 near its rear surface. A mounting hole 111 is provided on the top of the crushing box 104. A sealing plate 109 is installed inside the mounting hole 111. The width of the outer surface of the sealing plate 109 matches the width of the inner surface of the mounting hole 111. A sealing cover 106 is fixedly installed on the top of the sealing plate 109 and is bolted to the crushing box 104. Multiple [unclear - possibly related to a specific component or component] are fixedly installed on one side of the outer surface of the crushing box 104. Positioning rods 108, the outer surfaces of multiple positioning rods 108 are movably embedded in the interior of multiple positioning holes 203. A screen 110 is installed inside the crushing box 104. A control system 102 is installed inside the frame 101. A feeding hopper 107 is fixedly installed on one side of the top surface inside the frame 101. The interior of the feeding hopper 107 is connected to the interior of the crushing box 104. Four limiting grooves 212 are opened on one side of the outer surface of one of the support plates 209. A limiting plate 206 is fixedly installed on the outer surface of the moving rod 205 near the hydraulic rod 204. Four limiting rods 211 are fixedly installed on one side of the outer surface of the limiting plate 206. The outer surfaces of the four limiting rods 211 are movably embedded in the interior of the four limiting grooves 212. A support ring 208 is movably sleeved on the outer surface of the moving rod 205 away from the hydraulic rod 204. The outer surface of the support ring 208 is fixedly installed inside the rotating drum 207.

[0045] In this embodiment, during use, after the crushing hammer 302 is fixed by the fixing component 2 and the pre-installation component 3, the raw material of metformin hydrochloride sustained-release tablets is transported to the crushing box 104 through the feed pipe 105. The rotor body 301 is started to rotate by the drive system 103, which further drives the multiple crushing hammers 302 to rotate. The raw material enters the crushing box 104 and is crushed by the impact of the high-speed rotating crushing hammers 302. The crushed raw material gains kinetic energy from the crushing hammers 302 and rushes at high speed towards the inner baffle and screen 110 of the crushing box 104. At the same time, the materials collide with each other and are crushed multiple times. The materials smaller than the gap of the screen 110 are discharged from the gap and fall into the feed hopper 107. Some larger materials are crushed again by the impact of the crushing hammers 302 on the screen 110, thereby obtaining the product with the required particle size and completing the crushing process of the raw material. When the rotor body 301 rotates, it drives the crushing hammer 302 to rotate, and drives the arc plate 310 inside the adjusting groove 323 to rotate, which in turn drives the connecting rod 317 to rotate. The connecting rod 317 drives the rotating drum 207 to rotate, and at the same time drives the support rod 217 and the L-shaped rod 215 to rotate, thereby driving the fixed rod 216 to rotate inside the annular groove 218 without affecting the crushing and processing of the raw materials. Before use, the fixed component 2 limits the support plate 209 by the limiting plate 206 and the limiting rod 211, thereby limiting the rotating drum 207. This prevents the rotating drum 207 from rotating automatically during the installation of the box cover 201, which would cause the insertion hole 214 to rotate and not be aligned with the sealing hole 305. This would prevent the connecting rod 317 from entering the rotating drum 207 and affect the fixed installation of the crusher 302. When the hydraulic rod 204 pulls the moving rod 205 to the left, it will drive the limiting plate 206 to move together, pulling the limiting rod 211 out of the limiting groove 212 without affecting the subsequent rotation of the rotating drum 207.

[0046] The method of use and working principle of this invention are as follows: First, slide the two positioning pins 311 inside the crusher 302 into the two positioning slots 303, so that the crusher 302 slides onto the outer surface of the rotor body 301. Then, place the seven crushers 302 onto the outer surface of the rotor body 301 in sequence. Next, keep the cover 201 vertical and align the positioning hole 203 with the positioning rod 108. At this time, the rotating drum 207 will be aligned with one end of the rotor body 301. Then, move the cover 201 to install it on the outer surface of the crushing box 104 and tighten it with bolts. At the same time, the rotating drum 207 is pushed into the rotor body 301. Then, adjust the position of the seven crushers 302 through the mounting hole 111. According to the position of the seven sets of marking slots 304, slide the seven crushers 302 respectively. The crusher 302 is moved to the seven sets of marking grooves 304, where the seven sets of connecting rods 317 are aligned with the seven sets of sealing holes 305 and the seven sets of insertion holes 214. Then, the seven rotating blocks 313 are rotated sequentially in the direction indicated by the arrows on the side of the crusher 302. The rotation of the rotating blocks 313 causes the two connecting strips 314 to rotate inside the corresponding sealing gaskets 308, thereby separating the two sealing gaskets 308 that are in contact. The two sealing gaskets 308 that are not in contact with the connecting strips 314 then come together again due to their own elasticity. This causes the annular plate 307 to rotate inside the adjusting groove 323, which in turn causes the two arc-shaped blocks 309 to rotate simultaneously at one end of the four connecting rods 317, so that the connecting rods 317 rotate from the arc shape. The inner depth of block 309 moves to the shallower part, thereby pushing the four connecting rods 317 through the moving hole 322, sealing ring 306, and insertion hole 214 towards the moving rod 205, and driving the connecting block 316 to move together. At the same time, the spring 318 is compressed and contracted together. When the rotating block 313 can no longer rotate, the connecting rod 317 contacts the shallowest part of the arc-shaped block 309, one end of the connecting rod 317 moves into the inside of the rotating drum 207, the locking hole 321 moves to the L-shaped rod 215, the spring 318 is compressed and fully contracted together, thereby pre-installing the crushing hammer 302 on the outer surface of the rotor body 301. The above operation is repeated to pre-install the other crushing hammers 302, and then the sealing cover 106 is installed in the mounting hole 111. The sealing plate 109 seals the mounting hole 111. Finally, the hydraulic rod 204 is activated, pulling the moving rod 205 to the left, which in turn moves the fixing plate 213 and the fixing rod 216 together. This causes the L-shaped rod 215 to separate from the left fixing plate 213 and gradually contact the right fixing plate 213. As the fixing plate 213 moves, the L-shaped rod 215 moves on the outer surface of the support rod 217. When the hydraulic rod 204 automatically closes, the L-shaped rod 215 is inserted into the locking hole 321. The right fixing plate 213 limits the L-shaped rod 215, and the L-shaped rod 215 limits the connecting rod 317, thus limiting the crushing hammer 302. With the cooperation of the fixing component 2 and the pre-installation component 3, multiple hammers are quickly installed and fixed.The installation process eliminates the need for individual bolt installation, preventing bolts from loosening or falling off due to impact forces, which could lead to loose hammers. The raw material for metformin hydrochloride sustained-release tablets is fed into the crushing chamber 104 via the feed pipe 105. The rotor body 301 is started to rotate via the drive system 103, further driving multiple crushing hammers 302 to rotate. The raw material enters the crushing chamber 104 and is crushed by the impact of the high-speed rotating crushing hammers 302. The crushed raw material gains kinetic energy from the crushing hammers 302 and rushes at high speed towards the inner lining baffle and screen 110 of the crushing chamber 104. At the same time, the materials collide with each other and are crushed multiple times. Materials smaller than the gaps in the screen 110 are discharged from the gaps and fall into the feed hopper 107. Some larger materials are crushed again by the impact of the crushing hammers 302 on the screen 110, thereby obtaining a product of the required particle size and completing the crushing process of the raw material. When the rotor body 301 rotates, it drives the crushing hammer 302 to rotate, and drives the arc plate 310 inside the adjusting groove 323 to rotate, which in turn drives the connecting rod 317 to rotate. The connecting rod 317 drives the rotating drum 207 to rotate, and at the same time drives the support rod 217 and the L-shaped rod 215 to rotate, thereby driving the fixed rod 216 to rotate inside the annular groove 218 without affecting the crushing and processing of the raw materials. Before use, the fixing component 2 limits the support plate 209 via the limiting plate 206 and the limiting rod 211, thereby limiting the rotating drum 207. This prevents the rotating drum 207 from rotating automatically during the installation of the cover 201, which would cause the insertion hole 214 to rotate and fail to align with the sealing hole 305, preventing the connecting rod 317 from entering the rotating drum 207 and affecting the fixed installation of the crusher 302. When the hydraulic rod 204 pulls the moving rod 205 to the left, it will move the limiting plate 206 together, pulling the limiting rod 211 out of the limiting groove 212, without affecting the subsequent rotation of the rotating drum 207.

[0047] Among them, the control system 102, the drive system 103 and the hydraulic rod 204 are all existing technologies, and their components and operating principles are all publicly available technologies, so they will not be explained in detail here.

[0048] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A raw material pulverizing device for the production of metformin hydrochloride sustained-release tablets, comprising a pulverizing component (1), wherein the pulverizing component (1) is used to pulverize the raw material, characterized in that: The crushing component (1) is internally provided with a fixing component (2) and a pre-installation component (3). The pre-installation component (3) is used to pre-install the hammer head, and the fixing component (2) is used to fix the hammer head. The crushing assembly (1) includes a frame (101), a crushing box (104) is provided on the top of the frame (101) near one side, and a drive system (103) is provided on the top of the frame (101) near the other side. The fixing component (2) includes a box cover (201), on the outer surface of which a mounting plate (202) is fixedly installed. A hydraulic rod (204) is fixedly installed inside the mounting plate (202). A moving rod (205) is fixedly installed at the output end of the hydraulic rod (204). A rotating cylinder (207) is movably sleeved on the outer surface of the moving rod (205). Multiple insertion holes (214) are provided on the outer surface of the rotating cylinder (207). Multiple... Each of the fixed plates (213) has an annular groove (218) on one side of its outer surface. Each pair of annular grooves (218) forms a group. Each group of annular grooves (218) has two fixed rods (216) movably embedded inside. Each of the fixed rods (216) has an L-shaped rod (215) movably sleeved on its outer surface. Each of the rotating cylinders (207) has a support rod (217) fixedly installed on its inner wall near the multiple insertion holes (214). One end of each of the multiple support rods (217) is movably embedded inside the multiple L-shaped rods (215). The outer surface of one side of the box cover (201) is provided with multiple positioning holes (203) at equal intervals near the edge. The box cover (201) is installed on the outer surface of one side of the crushing box (104) by bolts. One end of the rotating drum (207) movably extends through to the outer surface of the box cover (201). Two support plates (209) are fixedly installed on the outer surface of the rotating drum (207) near one end. The two support plates (209) are each movably fitted with a limiting ring (210). The outer surface of one side of the two limiting rings (210) is fixedly installed on the outer surfaces of the two sides of the box cover (201). One of the support plates (209) has four limiting grooves (212) on one side of its outer surface. A limiting plate (206) is fixedly installed on the outer surface of the moving rod (205) near the hydraulic rod (204). Four limiting rods (211) are fixedly installed on one side of the outer surface of the limiting plate (206). The outer surfaces of the four limiting rods (211) are respectively movably embedded in the four limiting grooves (212). A support ring (208) is movably sleeved on the outer surface of the moving rod (205) away from the hydraulic rod (204). The outer surface of the support ring (208) is fixedly installed inside the rotating drum (207). The pre-installed assembly (3) includes a rotor body (301). Two positioning grooves (303) are opened on the outer surface of the rotor body (301). Multiple sealing holes (305) are opened on the inner walls of the two positioning grooves (303). Sealing rings (306) are fixedly connected to the inner walls of the multiple sealing holes (305). Multiple marking grooves (304) are equidistantly opened on the outer surface of the rotor body (301). Seven crushing hammers (302) are movably sleeved on the outer surface of the rotor body (301). Two positioning posts (311) are fixedly installed on the inner walls of the seven crushing hammers (302). The multiple positioning posts (311) are arranged in groups of seven horizontally distributed positioning posts (311). The outer surfaces of the two sets of positioning columns (311) are respectively movably embedded in the interior of the two positioning grooves (303). The interior of each of the seven crushing hammers (302) is provided with an adjustment groove (323). The inner wall of each of the seven crushing hammers (302) is provided with four movable holes (312). The interior of each of the seven adjustment grooves (323) is movably embedded with an annular plate (307). The inner wall of each of the seven annular plates (307) is fixedly installed with two arc-shaped blocks (309). The outer surface of one side of each of the seven annular plates (307) is fixedly installed with two connecting strips (314). The outer surface of one side of each of the seven crushing hammers (302) is provided with two connecting grooves (315) near the edge. The two sides of the interior of each of the multiple connecting grooves (315) are fixedly connected with sealing gaskets (308). Each pair of adjacent sealing gaskets (308) forms a group. The outer surface and inner wall of the multiple connecting strips (314) are in contact with each group of sealing gaskets (308). Two connecting strips (314) are distributed around each circumference of the multiple connecting strips (314) as a group. A rotating block (313) is fixedly installed on one side of the outer surface of each group of connecting strips (314). Two arc plates (310) are fixedly installed inside the seven adjustment grooves (323). Two moving holes (322) are opened on one side of the outer surface of the multiple arc plates (310). A connecting rod (317) is movably embedded inside the multiple moving holes (322). A connecting block (316) is fixedly installed on one end of the outer surface of the multiple connecting rods (317). A spring (318) is movably sleeved on the outer surface of the multiple connecting rods (317). A locking hole (321) is opened on the other end of the outer surface of the multiple connecting rods (317).

2. The raw material pulverizing device for the production of metformin hydrochloride sustained-release tablets according to claim 1, characterized in that: One end of each of the multiple springs (318) is fixedly installed on the outer surface of one side of each of the multiple connecting blocks (316). Two springs (318) in each horizontal direction form a group. The other end of each group of springs (318) is fixedly installed on the outer surface of each of the multiple arc plates (310). A slider (320) is fixedly installed on the outer surface of each of the multiple connecting blocks (316). Two sliding grooves (319) are opened on both sides inside the seven adjustment grooves (323). The outer surfaces of the multiple sliders (320) are movably embedded in the interior of the multiple sliding grooves (319). Two connecting rods (317) in each horizontal direction form a group. One end of each group of connecting rods (317) is in contact with the inner wall of each of the multiple arc blocks (309).

3. The raw material pulverizing device for the production of metformin hydrochloride sustained-release tablets according to claim 2, characterized in that: One end of the rotor body (301) extends movably through to the outer surface of the other side of the crushing box (104). One end of the rotor body (301) is fixedly connected to the output end of the drive system (103). The other end of the rotor body (301) is in contact with the outer surface of another support plate (209). The outer surface of the rotating drum (207) is movably embedded inside the rotor body (301). The other end of the rotating drum (207) is movably embedded on one side inside the rotor body (301).

4. The raw material pulverizing device for the production of metformin hydrochloride sustained-release tablets according to claim 3, characterized in that: A feed pipe (105) is fixedly connected to the top of the crushing box (104) near the rear surface. An installation hole (111) is provided on the top of the crushing box (104). A sealing plate (109) is installed inside the installation hole (111). The width of the outer surface of the sealing plate (109) matches the width inside the installation hole (111). A sealing cover (106) is fixedly installed on the top of the sealing plate (109). The sealing cover (106) is connected to the crushing box (104) by bolts. Multiple positioning rods (108) are fixedly installed on one side of the outer surface of the crushing box (104). The outer surfaces of the multiple positioning rods (108) are respectively movably embedded in the interior of multiple positioning holes (203). A screen (110) is installed inside the crushing box (104). A control system (102) is installed inside the frame (101). A feeding hopper (107) is fixedly installed on one side of the top surface inside the frame (101). The interior of the feeding hopper (107) is connected to the interior of the crushing box (104).

5. A method of using a raw material pulverizing device for the production of metformin hydrochloride sustained-release tablets, characterized in that, The raw material pulverizing apparatus for the production of metformin hydrochloride sustained-release tablets as described in claim 4 includes the following steps: S1. Align the positioning pin (311) with the positioning groove (303), then push the crushing hammer (302) to slide on the outer surface of the rotor body (301), align the positioning hole (203) with the positioning rod (108), align the rotating drum (207) with one end of the rotor body (301), and then push the box cover (201) to make the rotating drum (207) enter the rotor body (301); S2. Move the crushing hammer (302) to the marking groove (304) through the mounting hole (111), and then rotate the rotating block (313). The connecting strip (314) drives the ring plate (307) and the two arc blocks (309) to rotate, thereby pushing the four connecting rods (317) through the sealing ring (306) and the insertion hole (214) into the rotating drum (207) to pre-install the crushing hammer (302); S3. Start the hydraulic rod (204), pull the moving rod (205) to move to the left, drive the fixed plate (213) and the fixed rod (216) to move together, so that the L-shaped rod (215) contacts the fixed plate (213) on the right, and drive the L-shaped rod (215) to insert into the card hole (321) to fix the crusher (302); S4. The raw material is transported to the crushing box (104) through the feed pipe (105). The rotor body (301) is started to rotate by the drive system (103), which drives multiple crushing hammers (302) to rotate. The raw material enters the crushing box (104) and is crushed by the impact of the high-speed rotating crushing hammers (302). The crushed raw material gains kinetic energy from the crushing hammers (302) and rushes at high speed towards the inner baffle and screen (110) of the crushing box (104). At the same time, the materials collide with each other and are crushed multiple times. The crushed raw material falls into the feed hopper (107) for feeding.

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