Equipment and process for preparing stabilizer for preparing medical PVC (polyvinyl chloride) granules

Abstract

The invention discloses a stabilizer manufacturing device and technology for medical PVC granule preparation, and relates to the technical field of medical PVC granules, the stabilizer manufacturing device comprises a workbench, a mixing mechanism is arranged above the workbench, a material extruding mechanism is arranged above the workbench, a curing and smashing mechanism is arranged above the workbench, and the mixing mechanism, the material extruding mechanism and the curing and smashing mechanism are arranged above the workbench. The device further comprises a feeding device, a scattering device and an adjusting device. Wherein the mixing mechanism comprises a material mixing barrel, a servo motor and a stirring rod, the material mixing barrel is fixedly mounted at the output end of the mixing mechanism, and the servo motor is fixedly mounted above the material mixing barrel; the stabilizer manufacturing equipment can ensure that each raw material is accurately added in proportion, so that the mixing uniformity is improved, meanwhile, discharge of the raw materials can be stopped in time when the servo motor stops working, adaptive adjustment and mixing process optimization can be conveniently carried out according to the real-time condition of reaction, and the optimal reaction effect is ensured to be achieved.

Description

Technical Field

[0001] The invention relates to the technical field of medical PVC granules, in particular to a stabilizer manufacturing device and a process for preparing medical PVC granules. Background Art

[0002] The production of PVC stabilizers involves multiple steps and equipment. These stabilizers are mainly used to improve the thermal and light stability of PVC during processing and application to avoid degradation of the material under high temperature conditions.

[0003] The patent with patent announcement number CN110423423B relates to an automated production device for PVC modified stabilizer, including a feeding mechanism, a hot air pipe, a depolymerization mechanism, a secondary crushing mechanism, a coating machine injection mechanism and a discharging mechanism, the secondary crushing mechanism including a crushing component a and a crushing component b; the feeding mechanism inputs the material to be depolymerized to the depolymerization mechanism for depolymerization, and the powder and part of the particles produced by the depolymerization pass upward from between the crushing component a and the crushing component b to the coating cavity under the action of high-speed hot air, the coating machine injection mechanism sprays the coating agent on the material in the coating cavity, and the material after the coating cavity moves up to the discharging mechanism for output; the crushing component a and the crushing component b receive the fallen particles and crush them, which solves the technical problems of low material drying and depolymerization efficiency in the prior art, inability to realize integrated continuous production, low product output rate and low quality during the production process, and easy waste of materials.

[0004] The above patent solves the technical problems of low material drying and depolymerization efficiency in the prior art, inability to achieve integrated continuous production, low product output rate and low quality during the production process, and easy waste of materials. However, in the process of raw material mixing, the continuous addition of raw materials may lead to uneven mixing between the raw materials. At the same time, the difference in the accuracy of raw material addition may affect the quality of the finished stabilizer. For this reason, a stabilizer production equipment for the preparation of medical PVC pellets with better feeding effect is designed. Summary of the invention

[0005] In view of the deficiencies in the prior art, the present invention provides a stabilizer production device and process for preparing medical PVC granules, which solves the problems raised in the above background technology.

[0006] To achieve the above objectives, the present invention is implemented through the following technical solutions: a stabilizer production device for preparing medical PVC granules, comprising a workbench, a mixing mechanism is arranged above the workbench, an extrusion mechanism is arranged above the workbench, a curing and crushing mechanism is arranged above the workbench, and also includes a feeding device, a spreading device and an adjusting device; wherein the mixing mechanism includes a mixing barrel, a servo motor and a stirring rod, the mixing barrel is fixedly installed at the output end of the mixing mechanism, the servo motor is fixedly installed above the mixing barrel, the stirring rod rotates and penetrates the inner and outer walls of the mixing barrel, and the stirring rod is fixedly connected to the output end of the servo motor; wherein the feeding device is arranged on the surface of the mixing barrel and is used to control the amount of raw materials put in, the feeding device includes a raw material barrel, a driven shaft, a feeding pipe, a guide plate, a receiving rod, a baffle, a connecting rod, a sleeve and a spreading plate, the raw materials required for preparing the PVC granule stabilizer are mixed through the mixing mechanism, then heated and fused under the action of the extrusion mechanism and extruded, and finally cooled and crushed into the required materials under the action of the curing and crushing mechanism. The particle size of the raw material barrel is fixedly penetrated through the top of the mixing barrel, the driven shaft rotates and penetrates through the top of the raw material barrel, the feeding pipe is fixedly penetrated through the top of the raw material barrel, the guide plate is slidably mounted on the inner wall of the raw material barrel, the receiving rod slides through the top of the raw material barrel, the baffle is fixedly mounted below the receiving rod, the connecting rod is slidably mounted on the inner wall of the raw material barrel, the sleeve is fixedly mounted on the end of the connecting rod away from the inner wall of the raw material barrel, the spreading disc is rotatably mounted on the circumferential surface of the sleeve, the stirring rod and the driven shaft are connected by a transmission belt transmission, the circumferential surface of the driven shaft is provided with a reciprocating thread groove, the sleeve and the driven shaft are connected by a thread, the surface of the guide plate is provided with a discharge port, the sleeve moves downward to drive the spreading disc to move downward and release the closure of the bottom of the raw material barrel, so that the raw material is scattered into the interior of the raw material barrel through the spreading disc, thereby realizing quantitative multiple discharge of the raw material; wherein, the spreading device is arranged on the surface of the spreading disc and is used to improve the mixing effect of the raw materials, and the regulating device is arranged on the surface of the raw material barrel and is used to change the ratio between the raw materials.

[0007] According to the above technical solution, a spring is arranged between the receiving rod and the raw material barrel, and the baffle is sleeved with the circumferential surface of the driven shaft. When the receiving rod moves upward, the spring is stretched. When the sleeve moves downward and breaks away from the contact with the baffle, the baffle re-closes the discharge port on the surface of the guide plate under the action of the receiving rod and the spring.

[0008] According to the above technical solution, the surface of the guide plate is set to be inclined plane 1, which facilitates the discharge of raw materials through the guide plate. The shape of the baffle is set to be an inverted cone, which facilitates the baffle to close the discharge port. The shape of the spreading plate is set to be a cone, which facilitates the introduction of raw materials.

[0009] According to the above technical scheme, the spreading device includes a fixed plate, a receiving block, a fixed block and a spreading rod. The spreading plate drives the fixed block to move downward during the downward movement, and the fixed block moves downward and enters the motion trajectory of the receiving block. The fixed plate is fixedly installed on the circumferential surface of the driven shaft, the receiving block is fixedly installed above the fixed plate, the fixed block is fixedly installed below the spreading plate, and the spreading rod is fixedly installed above the spreading plate. The rotation of the fixed block drives the spreading plate to rotate, and the rotation of the spreading plate drives the spreading rod to rotate. The rotation of the spreading rod can spread the raw materials.

[0010] According to the above technical solution, the upper part of the receiving block is set as arc surface one, and the lower part of the fixed block is set as arc surface two. When the receiving block moves downward, the arc surface one and the arc surface two can avoid direct contact and collision, thereby maintaining stability during the material spreading process.

[0011] The lifting plate can be moved upward, and the lifting plate can move upward to drive the U-shaped rod to move upward, and the U-shaped rod can move upward to drive the material guide plate to move upward, and the lifting plate can be slidably installed on the circumferential surface of the raw material barrel, and the U-shaped rod can slide through the top of the raw material barrel, and the L-shaped rod can slide through the surface of the U-shaped rod, and the adjustment plate is fixedly installed above the raw material barrel, and an adjustment groove is provided on the surface of the adjustment plate, and one end of the U-shaped rod located inside the raw material barrel is fixedly connected to the material guide plate, and the end of the U-shaped rod away from the material guide plate is fixedly connected to the lifting plate, and the upward movement of the material guide plate will increase the distance between the material guide plate and the material scattering plate, thereby changing the space reserve between the material guide plate and the material scattering plate.

[0012] According to the above technical solution, a slide groove is opened on the surface of the U-shaped rod, a telescopic elastic rod is fixedly installed on the inner wall of the slide groove, the free end of the telescopic elastic rod is fixedly connected to the L-shaped rod, and the telescopic elastic rod can drive the L-shaped rod to reset.

[0013] According to the above technical solution, the side of the L-shaped rod close to the adjustment plate is set as inclined surface 2, and there are several adjustment grooves. When the L-shaped rod moves upward, it moves away from the adjustment plate under the action of inclined surface 2.

[0014] A manufacturing process of a stabilizer manufacturing device for preparing medical PVC granules, using the above-mentioned stabilizer manufacturing device for preparing medical PVC granules, comprises the following steps: Step 1: The raw materials required for preparing the PVC pellet stabilizer are mixed by a mixing mechanism, then heated and fused by an extrusion mechanism and extruded, and finally cooled and crushed into the required particle size by a curing and crushing mechanism; Step 2: continuously introduce the required raw materials into the raw material barrel through the feed pipe, then start the servo motor and stir and mix the raw materials inside the mixing barrel through the stirring rod; Step 3: The stirring rod rotates through the transmission belt to drive the driven shaft to rotate, and the driven shaft rotates through the reciprocating thread groove to drive the sleeve to move up and down. During the upward movement of the sleeve, it contacts and squeezes the baffle to move upward; Step 4: The baffle moves upward to release the blockage of the discharge port on the surface of the guide plate, and at the same time, the spreading plate moves upward to block the bottom of the raw material barrel; Step 5: The sleeve moves downward, driving the spreading plate to move downward and releasing the seal on the bottom of the raw material barrel, so that the raw materials are scattered into the interior of the raw material barrel through the spreading plate, realizing quantitative multiple discharge of the raw materials.

[0015] The present invention provides a stabilizer manufacturing device and process for preparing medical PVC granules, which has the following beneficial effects: (1) The stabilizer manufacturing equipment and process for preparing medical PVC granules, through the coordinated operation among the driven shaft, the feed pipe, the guide plate, the receiving rod, the baffle, the connecting rod, the sleeve and the spreading plate, the spreading plate moves up and down to spread the raw materials into the interior of the mixing barrel, thereby realizing quantitative multiple discharge of the raw materials. Through quantitative multiple discharge, it can ensure that each raw material is added accurately in proportion, thereby improving the uniformity of mixing. At the same time, when the servo motor stops working, the discharge of the raw materials can be stopped in time, which is convenient for adaptive adjustment according to the real-time situation of the reaction, optimizing the mixing process, and ensuring the best reaction effect.

[0016] (2) The stabilizer production equipment and process for preparing medical PVC granules, through the coordinated operation of a fixed plate, a receiving block, a fixed block and a spreading rod, the spreading plate rotates to drive the spreading rod to rotate, and the spreading rod rotates to spread the raw materials. The spread raw materials contact each other and mix more evenly, while avoiding the direct free fall of the raw materials to cause accumulation in the local raw material barrel, effectively preventing local excess due to aggregation, thereby maintaining a more consistent ratio of raw material mixing, making the raw material mixing more even, and improving the finished product effect of the stabilizer.

[0017] (3) The stabilizer manufacturing equipment and process for preparing medical PVC granules, through the coordinated operation of the lifting plate, U-shaped rod, L-shaped rod, adjustment plate, adjustment groove, slide groove and telescopic elastic rod, the L-shaped rod continues to move upward and re-enters the interior of another adjustment groove under the action of the telescopic elastic rod and is limited, and by changing the distance between the guide plate and the spreading plate, the space storage between the guide plate and the spreading plate will be changed. By changing the feed amount between different raw materials, the ratio between the required raw materials can be changed, so that the applicability of the equipment is improved in the production process of different stabilizers and the production cost is reduced. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the internal structure of the raw material barrel of the present invention; Figure 3 This is a schematic diagram of the position structure of the raw material barrel and the guide plate of the present invention; Figure 4 This is a schematic diagram of the position structure of the driven shaft and the sleeve of the present invention; Figure 5 For the present invention Figure 4 The enlarged structural diagram of part A in the middle; Figure 6 This is a schematic diagram of the position structure of the U-shaped rod and the adjustment plate of the present invention; Figure 7 For the present invention Figure 6 The enlarged structural diagram of part B is shown in the figure.

[0019] In the figure: 1. workbench; 101. servo motor; 2. mixing mechanism; 3. extrusion mechanism; 4. curing and crushing mechanism; 5. mixing barrel; 6. stirring rod; 7. raw material barrel; 8. driven shaft; 9. feed pipe; 10. guide plate; 11. receiving rod; 12. baffle; 13. connecting rod; 14. sleeve; 15. spreading plate; 16. spring; 171. fixed plate; 172. receiving block; 173. fixed block; 174. spreading rod; 181. lifting plate; 182. U-shaped rod; 183. L-shaped rod; 184. adjusting plate; 185. adjusting slot; 186. slide slot; 187. telescopic elastic rod. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0021] See also Figure 1-Figure 7One embodiment of the present invention is: a stabilizer production device for preparing medical PVC granules, comprising a workbench 1, a mixing mechanism 2 is arranged above the workbench 1, a material extrusion mechanism 3 is arranged above the workbench 1, a curing and crushing mechanism 4 is arranged above the workbench 1, and also includes a feeding device, a material spreading device and an adjusting device; wherein the mixing mechanism 2 comprises a mixing barrel 5, a servo motor 101 and a stirring rod 6, the mixing barrel 5 is fixedly installed at the output end of the mixing mechanism 2, the servo motor 101 is fixedly installed above the mixing barrel 5, the stirring rod 6 rotates through the inner and outer walls of the mixing barrel 5, and the stirring The mixing rod 6 is fixedly connected to the output end of the servo motor 101; wherein, the feeding device is arranged on the surface of the mixing barrel 5 and is used to control the amount of raw materials put in. The feeding device includes a raw material barrel 7, a driven shaft 8, a feeding pipe 9, a guide plate 10, a receiving rod 11, a baffle 12, a connecting rod 13, a sleeve 14 and a spreading plate 15. The raw materials required for preparing the PVC granular stabilizer are mixed through the mixing mechanism 2, and then heated and fused under the action of the extrusion mechanism 3 and extruded. Finally, it is cooled and crushed into the required particle size under the action of the curing and crushing mechanism 4. The raw material barrel 7 is fixedly passed through the top of the mixing barrel 5. The driven shaft 8 rotates and penetrates the top of the raw material barrel 7, the feed pipe 9 is fixed and penetrates the top of the raw material barrel 7, the guide plate 10 is slidably installed on the inner wall of the raw material barrel 7, the receiving rod 11 slides and penetrates the top of the raw material barrel 7, the baffle 12 is fixedly installed below the receiving rod 11, the connecting rod 13 is slidably installed on the inner wall of the raw material barrel 7, the sleeve 14 is fixedly installed at the end of the connecting rod 13 away from the inner wall of the raw material barrel 7, the spreading plate 15 is rotatably installed on the circumferential surface of the sleeve 14, the stirring rod 6 and the driven shaft 8 are connected by a transmission belt, the circumferential surface of the driven shaft 8 is provided with a reciprocating thread groove, and the sleeve 14 The guide plate 10 is connected to the driven shaft 8 by a threaded connection, and a discharge port is provided on the surface of the guide plate 10. The sleeve 14 moves downward to drive the spreading disc 15 to move downward and release the closure on the bottom of the raw material barrel 7, so that the raw materials are scattered into the interior of the mixing barrel 5 through the spreading disc 15, thereby realizing quantitative multiple discharge of the raw materials. Through quantitative multiple discharge, it can be ensured that each raw material is added accurately in proportion, thereby improving the uniformity of mixing; wherein, the spreading device is arranged on the surface of the spreading disc 15 and is used to improve the raw material mixing effect, and the adjusting device is arranged on the surface of the raw material barrel 7 and is used to change the ratio between the raw materials.

[0022] A spring 16 is arranged between the receiving rod 11 and the raw material barrel 7, and the baffle 12 is sleeved with the circumferential surface of the driven shaft 8. When the receiving rod 11 moves upward, the spring 16 is stretched. When the sleeve 14 moves downward and breaks away from the contact with the baffle 12, the baffle 12 re-closes the discharge port on the surface of the guide plate 10 under the action of the receiving rod 11 and the spring 16.

[0023] The surface of the guide plate 10 is set to be inclined plane 1, which facilitates the discharge of raw materials through the guide plate 10. The shape of the baffle 12 is set to be an inverted cone, which facilitates the baffle 12 to close the discharge port. The shape of the spreading plate 15 is set to be conical, which facilitates the introduction of raw materials.

[0024] A manufacturing process of a stabilizer manufacturing device for preparing medical PVC granules, using the above-mentioned stabilizer manufacturing device for preparing medical PVC granules, comprises the following steps: Step 1: The raw materials required for preparing the PVC pellet stabilizer are mixed by the mixing mechanism 2, and then heated and fused by the extrusion mechanism 3 and extruded, and finally cooled and crushed into the required particle size by the solidification and crushing mechanism 4; Step 2: continuously introduce the required raw materials into the raw material barrel 7 through the feed pipe 9, then start the servo motor 101 and stir and mix the raw materials inside the mixing barrel 5 through the stirring rod 6; Step 3: The stirring rod 6 rotates to drive the driven shaft 8 to rotate through the transmission belt, and the driven shaft 8 rotates to drive the sleeve 14 to move up and down through the reciprocating thread groove. During the upward movement of the sleeve 14, it contacts and squeezes the baffle 12 to move upward; Step 4: The baffle plate 12 moves upward to release the blockage of the discharge port on the surface of the guide plate 10, and at the same time, the spreading plate 15 moves upward to block the bottom of the raw material cylinder 7; Step 5: The sleeve 14 moves downward, driving the spreading disc 15 to move downward and releasing the seal on the bottom of the raw material barrel 7, so that the raw materials are scattered into the interior of the mixing barrel 5 through the spreading disc 15, thereby achieving quantitative multiple discharge of the raw materials.

[0025] When this embodiment is working: the raw materials required for preparing the PVC granular stabilizer are mixed through the mixing mechanism 2, and then heated, fused and extruded under the action of the extrusion mechanism 3, and finally cooled and crushed into the required particle size under the action of the curing and crushing mechanism 4. During the raw material mixing process, the required raw materials are continuously introduced into the interior of the raw material barrel 7 through the feeding pipe 9, and then the servo motor 101 is started. The output end of the servo motor 101 rotates to drive the stirring rod 6 to stir and mix the raw materials inside the mixing barrel 5. During this process, the stirring rod 6 rotates through the transmission belt to drive the driven shaft 8 to rotate, and the driven shaft 8 rotates through the reciprocating thread groove to drive the sleeve 14 to move up and down. During the upward movement of the sleeve 14, it contacts and squeezes the baffle 12 to move upward. The baffle 12 moves upward to release the closure of the discharge port on the surface of the guide plate 10. The sleeve 14 moves upward and drives the spreading plate 15 to The scattering plate 15 moves upward to close the bottom of the raw material barrel 7, so that the raw material enters the space formed by the guide plate 10 and the scattering plate 15 through the discharge port. The sleeve 14 moves downward to break away from the contact with the baffle 12, and under the action of the receiving rod 11 and the spring 16, the discharge port on the surface of the guide plate 10 is re-closed. The sleeve 14 moves downward to drive the scattering plate 15 to move downward and release the closure of the bottom of the raw material barrel 7, so that the raw material is scattered into the interior of the mixing barrel 5 through the scattering plate 15, realizing quantitative multiple discharge of raw materials. Through quantitative multiple discharge, it can ensure that each raw material is added accurately in proportion, thereby improving the uniformity of mixing. At the same time, when the servo motor 101 stops working, the discharge of raw materials can be stopped in time, which is convenient for adaptive adjustment according to the real-time situation of the reaction, optimizing the mixing process, and ensuring the best reaction effect.

[0026] See also Figure 1-Figure 7 On the basis of the above-mentioned embodiment, in another embodiment of the present invention, the spreading device includes a fixed plate 171, a receiving block 172, a fixed block 173 and a spreading rod 174. The spreading plate 15 drives the fixed block 173 to move downward during the downward movement. The fixed block 173 moves downward and enters the motion trajectory of the receiving block 172. The fixed plate 171 is fixedly installed on the circumferential surface of the driven shaft 8, the receiving block 172 is fixedly installed above the fixed plate 171, the fixed block 173 is fixedly installed below the spreading plate 15, and the spreading rod 174 is fixedly installed above the spreading plate 15. The rotation of the fixed block 173 drives the spreading plate 15 to rotate, and the rotation of the spreading plate 15 drives the spreading rod 174 to rotate. The rotation of the spreading rod 174 can spread the raw materials, and the spread raw materials contact each other and mix more evenly.

[0027] The upper part of the receiving block 172 is set as arc surface 1, and the lower part of the fixing block 173 is set as arc surface 2. When the receiving block 172 moves downward, the arc surface 1 and the arc surface 2 can avoid direct contact and collision, thereby maintaining stability during the material spreading process.

[0028] The adjusting device includes a lifting plate 181, a U-shaped rod 182, an L-shaped rod 183 and an adjusting plate 184. The lifting plate 181 is moved upward, and the lifting plate 181 moves upward to drive the U-shaped rod 182 to move upward. The U-shaped rod 182 moves upward to drive the guide plate 10 to move upward. The lifting plate 181 is slidably installed on the circumferential surface of the raw material barrel 7, the U-shaped rod 182 slides through the top of the raw material barrel 7, the L-shaped rod 183 slides through the surface of the U-shaped rod 182, and the adjusting plate 184 is fixedly installed above the raw material barrel 7. An adjusting groove 185 is provided on the surface of the adjusting plate 184. One end of the U-shaped rod 182 located inside the raw material barrel 7 is fixedly connected to the guide plate 10, and the end of the U-shaped rod 182 away from the guide plate 10 is fixedly connected to the lifting plate 181. The upward movement of the guide plate 10 will increase the distance between it and the scattering plate 15, thereby changing the space storage between the guide plate 10 and the scattering plate 15, thereby increasing the one-time feeding amount of the raw material.

[0029] A slide groove 186 is provided on the surface of the U-shaped rod 182, and a telescopic elastic rod 187 is fixedly installed on the inner wall of the slide groove 186. The free end of the telescopic elastic rod 187 is fixedly connected to the L-shaped rod 183, and the telescopic elastic rod 187 can drive the L-shaped rod 183 to reset.

[0030] A second slope is arranged on one side of the L-shaped rod 183 close to the adjusting plate 184, and a plurality of adjusting grooves 185 are arranged. When the L-shaped rod 183 moves upward, it moves away from the adjusting plate 184 under the action of the second slope. The adjusting grooves 185 can conveniently change different raw material ratios.

[0031] When this embodiment is working: the scattering disc 15 drives the fixed block 173 to move downward during the downward movement, and the fixed block 173 moves downward into the movement trajectory of the receiving block 172. At this time, the driven shaft 8 rotates to drive the fixed disc 171 to rotate, and the fixed disc 171 rotates to drive the receiving block 172 to rotate. The receiving block 172 rotates to contact and squeeze the fixed block 173 to rotate around the driven shaft 8. The fixed block 173 rotates to drive the scattering disc 15 to rotate, and the scattering disc 15 rotates to drive the scattering rod 174 to rotate. The rotation of the scattering rod 174 can scatter the raw materials. The scattered raw materials contact each other and mix more evenly. At the same time, it avoids the direct free fall of the raw materials to cause local accumulation of the raw material barrel 7, and effectively prevents local excess caused by aggregation, thereby keeping the proportion of raw material mixing more consistent, making the raw material mixing more even, and improving the finished product effect of the stabilizer.

[0032] When it is necessary to change the ratio between different raw materials, the lifting plate 181 is moved upward, and the lifting plate 181 moves upward, driving the U-shaped rod 182 to move upward, and the U-shaped rod 182 moves upward, driving the material guide plate 10 to move upward, and the upward movement of the material guide plate 10 will increase the distance between the material guide plate 10 and the material scattering plate 15, thereby changing the space storage between the material guide plate 10 and the material scattering plate 15, thereby increasing the one-time feed amount of the raw materials, and the L-shaped rod 183 moves upward, and the L-shaped rod 183 moves upward to contact the inner wall of the adjustment groove 185 and moves away from the adjustment plate 184 under its action, and when the L-shaped rod 183 moves in the direction away from the adjustment plate 184, it squeezes the telescopic elastic rod 187 to contract, and at this time the L-shaped rod 183 continues to move upward and re-enters the interior of another adjustment groove 185 under the action of the telescopic elastic rod 187 and is limited, and the change in the required ratio between the raw materials is achieved by changing the feed amount between different raw materials, thereby improving the applicability of the equipment and reducing the production cost in the production process of different stabilizers.

[0033] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A stabilizer production device for preparing medical PVC pellets, comprising a workbench (1), a mixing mechanism (2) is arranged above the workbench (1), an extrusion mechanism (3) is arranged above the workbench (1), and a curing and crushing mechanism (4) is arranged above the workbench (1), characterized in that: It also includes a feeding device, a spreading device and an adjusting device; The mixing mechanism (2) comprises a mixing barrel (5), a servo motor (101) and a stirring rod (6); the mixing barrel (5) is fixedly mounted on the output end of the mixing mechanism (2); the servo motor (101) is fixedly mounted above the mixing barrel (5); the stirring rod (6) rotates to penetrate the inner and outer walls of the mixing barrel (5); and the stirring rod (6) is fixedly connected to the output end of the servo motor (101); The feeding device is arranged on the surface of the mixing barrel (5) and is used to control the amount of raw materials added. The feeding device comprises a raw material barrel (7), a driven shaft (8), a feeding pipe (9), a material guide plate (10), a receiving rod (11), a baffle (12), a connecting rod (13), a sleeve (14) and a material spreading plate (15). The raw material barrel (7) is fixedly penetrated through the top of the mixing barrel (5), the driven shaft (8) is rotatably penetrated through the top of the raw material barrel (7), and the feeding pipe (9) is fixedly penetrated through the top of the mixing barrel (5). The guide plate (10) is slidably mounted on the inner wall of the raw material barrel (7), the receiving rod (11) slidably penetrates the top of the raw material barrel (7), the baffle (12) is fixedly mounted below the receiving rod (11), the connecting rod (13) is slidably mounted on the inner wall of the raw material barrel (7), the sleeve (14) is fixedly mounted on one end of the connecting rod (13) away from the inner wall of the raw material barrel (7), and the spreading plate (15) is rotatably mounted on the circumferential surface of the sleeve (14); The material spreading device is arranged on the surface of the material spreading plate (15) and is used to improve the mixing effect of the raw materials, and the regulating device is arranged on the surface of the raw material barrel (7) and is used to change the ratio between the raw materials.

2. The stabilizer production equipment for preparing medical PVC granules according to claim 1, characterized in that: The stirring rod (6) and the driven shaft (8) are connected via a transmission belt, a reciprocating thread groove is provided on the circumferential surface of the driven shaft (8), the sleeve (14) and the driven shaft (8) are connected via a thread, and a discharge port is provided on the surface of the guide plate (10).

3. The stabilizer production equipment for preparing medical PVC granules according to claim 2, characterized in that: A spring (16) is provided between the receiving rod (11) and the raw material barrel (7), and the baffle (12) is sleeved with the circumferential surface of the driven shaft (8).

4. The stabilizer production equipment for preparing medical PVC granules according to claim 3, characterized in that: The surface of the material guide plate (10) is configured as inclined surface 1, the shape of the baffle plate (12) is configured as an inverted cone, and the shape of the material spreading plate (15) is configured as a cone.

5. The stabilizer production equipment for preparing medical PVC granules according to claim 4, characterized in that: The material spreading device comprises a fixed disc (171), a receiving block (172), a fixed block (173) and a material spreading rod (174); the fixed disc (171) is fixedly mounted on the circumferential surface of the driven shaft (8); the receiving block (172) is fixedly mounted above the fixed disc (171); the fixed block (173) is fixedly mounted below the material spreading disc (15); and the material spreading rod (174) is fixedly mounted above the material spreading disc (15).

6. The stabilizer production equipment for preparing medical PVC granules according to claim 5, characterized in that: The upper portion of the receiving block (172) is arranged as arc surface one, and the lower portion of the fixing block (173) is arranged as arc surface two.

7. The stabilizer production equipment for preparing medical PVC granules according to claim 6, characterized in that: The adjustment device comprises a lifting plate (181), a U-shaped rod (182), an L-shaped rod (183) and an adjustment plate (184); the lifting plate (181) is slidably mounted on the circumferential surface of the raw material barrel (7); the U-shaped rod (182) slides through the top of the raw material barrel (7); the L-shaped rod (183) slides through the surface of the U-shaped rod (182); the adjustment plate (184) is fixedly mounted above the raw material barrel (7); an adjustment groove (185) is provided on the surface of the adjustment plate (184); one end of the U-shaped rod (182) located inside the raw material barrel (7) is fixedly connected to the material guide plate (10); and one end of the U-shaped rod (182) away from the material guide plate (10) is fixedly connected to the lifting plate (181).

8. The stabilizer production equipment for preparing medical PVC granules according to claim 7, characterized in that: A sliding groove (186) is provided on the surface of the U-shaped rod (182), a telescopic elastic rod (187) is fixedly mounted on the inner wall of the sliding groove (186), and a free end of the telescopic elastic rod (187) is fixedly connected to the L-shaped rod (183).

9. The stabilizer production equipment for preparing medical PVC granules according to claim 8, characterized in that: A side of the L-shaped rod (183) close to the adjustment plate (184) is provided as a second inclined surface, and a plurality of adjustment slots (185) are provided.

10. A manufacturing process of a stabilizer manufacturing device for preparing medical PVC pellets, using the stabilizer manufacturing device for preparing medical PVC pellets according to claim 9, characterized in that: The following steps are involved: Step 1: The raw materials required for preparing the PVC pellet stabilizer are mixed by a mixing mechanism (2), and then heated, fused and extruded under the action of an extrusion mechanism (3), and finally cooled and crushed into a desired particle size under the action of a solidification and crushing mechanism (4); Step 2: continuously introducing the required raw materials into the interior of the raw material barrel (7) through the feed pipe (9), then starting the servo motor (101) and stirring and mixing the raw materials inside the mixing barrel (5) through the stirring rod (6); Step 3: The stirring rod (6) rotates through the transmission belt to drive the driven shaft (8) to rotate, and the driven shaft (8) rotates through the reciprocating thread groove to drive the sleeve (14) to move up and down, and the sleeve (14) contacts and squeezes the baffle (12) to move upward during the upward movement; Step 4: the baffle plate (12) moves upward to release the blockage of the discharge port on the surface of the guide plate (10), and at the same time, the spreading plate (15) moves upward to block the lower part of the raw material barrel (7); Step 5: The sleeve (14) moves downward, driving the material spreading plate (15) to move downward and releasing the seal on the bottom of the raw material barrel (7), thereby allowing the raw materials to be scattered into the interior of the raw material barrel (7) through the material spreading plate (15), thereby achieving quantitative multiple discharge of the raw materials.

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