An automatic feeding device for PVDF pipe production and processing

Abstract

The present invention relates to the field of feeding technology, and specifically to an automatic feeding device for PVDF tube production and processing, comprising: a base; a conveying mechanism, wherein the conveying mechanism is used for conveying raw materials for PVDF tube production, and the top of the conveying mechanism is fixedly connected to the top of the base through a bracket; a mixing mechanism, wherein the mixing mechanism is used for mixing raw materials for PVDF tube production, and the bottom of the mixing mechanism is fixedly connected to the top of the base. The present invention sets a conveying mechanism, and since the rotation speed of the driving shaft is proportional to the rotation speed of the driven shaft, the faster the driving shaft rotation speed is, the faster the feeding speed is. Therefore, when the feeding speed becomes faster, the speed at which the driven shaft drives the cam to rotate increases. At this time, the operating frequency of the feeding component becomes faster along with the rotation of the cam, so the amount of auxiliary material added per unit time increases, thereby achieving the purpose of adding raw materials and auxiliary materials in equal proportions, without the need for manual regulation by staff, the operation process is simple and easy to use.

Description

Technical Field

[0001] The invention relates to the technical field of feeding, and in particular to an automatic feeding device for producing and processing PVDF pipes. Background Art

[0002] PVDF tube production and processing is to make PVDF (polyvinylidene fluoride) materials into tubes with specific shapes and sizes through extrusion, injection molding and other molding methods. During the production process, it is necessary to pay attention to the large difference between the melting point and decomposition temperature of PVDF, which has good molding and processing conditions. At the same time, in order to improve the performance of PVDF tubes, they can also be modified, such as blending with other materials.

[0003] In the prior art, raw materials need to be transported during the production and processing of PVDF pipes. The existing feeding device has some shortcomings when feeding. For example, if two raw materials need to be transported and mixed, the two raw materials can usually only be transported separately and then mixed and stirred. The operation process is cumbersome, time-consuming and labor-intensive, affecting production efficiency. In addition, the structure of the feeding device is relatively complex and inconvenient to operate. Summary of the invention

[0004] In view of the deficiencies of the prior art, the technical solution adopted by the present invention to solve the technical problems is: an automatic feeding device for PVDF pipe production and processing, comprising: a base; a conveying mechanism, the conveying mechanism is used to convey the raw materials for PVDF pipe production, the top of the conveying mechanism is fixedly connected to the top of the base through a bracket; a mixing mechanism, the mixing mechanism is used to mix the raw materials for PVDF pipe production, the bottom of the mixing mechanism is fixedly connected to the top of the base, the outer side of the mixing mechanism is fixedly connected to the outer side of the conveying mechanism, the raw materials for PVDF pipe production and processing are conveyed by the conveying mechanism, and then the conveyed raw materials are mixed by the mixing mechanism;

[0005] The conveying mechanism includes a conveying pipe, a feed hopper is fixedly connected to the outer side of the conveying pipe, a feeding assembly is fixedly connected to the top of the conveying pipe, a driving motor is arranged on the outer side of the feeding assembly, the output end of the driving motor is rotatably connected to a driving shaft, the outer wall of the driving shaft is fixedly connected to a spiral conveying paddle, the top of the conveying pipe is rotatably connected to a driven shaft through a bearing, the outer wall of the driven shaft is fixedly connected to a cam, the outer wall of the driving shaft is fixedly connected to a material guide plate, the output end of the driving motor drives the driving shaft to rotate, and at this time the driving shaft drives the spiral conveying paddle to rotate, so as to convey the raw materials entering the conveying pipe.

[0006] Preferably, the bottom of the feed pipe is fixedly connected to the top of the base through a bracket, the top of the base is fixedly connected to the outside of the drive motor through a frame, the outer wall of the drive shaft is rotatably connected to the outer wall of the driven shaft through a pulley set, and the outer wall of the drive shaft is rotatably connected to the inner wall of the feed hopper through a bearing. Because the interval between the guide plates is smaller than the pitch of the screw conveyor paddle, the speed of the raw material when passing through the screw conveyor paddle is smaller than the speed when passing through the guide plates.

[0007] Preferably, the top of the feeding assembly is slidably connected to the outer wall of the cam, the outer walls of the screw conveying paddle and the guide plate are slidably connected to the inner wall of the feed pipe, the outer wall of the feed pipe away from the driving motor is fixedly connected to the outside of the mixing mechanism, and a drop hole is opened in the wall of the guide plate. Part of the raw materials and auxiliary materials can pass through the drop hole during the rotation of the guide plate, so that the mixing is more uniform.

[0008] Preferably, the feeding assembly includes a dropping tube, the outer wall of the dropping tube is fixedly connected to the feeding tube, the inner wall of the dropping tube is fixedly connected to a compression spring, the top of the compression spring is fixedly connected to a sliding plate, the center of the sliding plate is fixedly connected to a sliding rod, the top of the sliding rod is fixedly connected to an arc-shaped top block, and the bottom end of the sliding rod is fixedly connected to a sleeve, and the cam can push the arc-shaped top block downward during the downward rotation process, so that the arc-shaped top block drives the sleeve to move downward through the sliding rod.

[0009] Preferably, the bottom of the drop tube is fixedly connected to the top of the feed pipe, the inner wall of the drop tube is slidably connected to the outer wall of the sliding plate, the top of the arc-shaped top block is slidably connected to the outer wall of the cam, the inner wall of the drop tube is slidably connected to the outer wall of the sleeve, and a rectangular hole is opened in the wall of the sleeve. When the cam deflects upward, the compression spring drives the sleeve to reset through the sliding plate and the sliding rod.

[0010] Preferably, the mixing mechanism includes a protective shell, the inner wall of the protective shell is fixedly connected with a heat-conducting cylinder, the inner wall of the heat-conducting cylinder is rotatably connected with a stirring assembly, the bottom of the inner wall of the protective shell is fixedly connected with a heater, the top of the heater is fixedly connected with a heating wire, the outer wall of the heat-conducting cylinder is fixedly connected with a discharge pipe, the outer wall of the protective shell is fixedly connected with a hydraulic telescopic rod, the output end of the hydraulic telescopic rod is fixedly connected with a connecting plate, the top of the connecting plate is fixedly connected with a material guide pipe, the heating wire is heated by the heater, and the heat is transferred to the stirring assembly through the heat-conducting cylinder, which can prevent the raw materials from cooling and solidifying during stirring.

[0011] Preferably, the bottom of the protective shell is fixedly connected to the top of the base, the outer side of the protective shell is fixedly connected to the outer side of the feed pipe, the outer wall of the connecting plate is slidably connected to the bottom of the discharge pipe through a sliding hole, the inner wall of the discharge pipe is slidably connected to the outer wall of the guide pipe, the inner wall of the guide pipe is in contact with the inner side of the stirring assembly, and the hydraulic telescopic rod can drive the guide pipe to retract into the discharge pipe through the connecting plate.

[0012] Preferably, the stirring assembly includes a rotating sleeve, an inner side of which is fixedly connected to an arc plate, and the arc plates are arranged in a circular array along the central axis of the rotating sleeve, an outer wall of the arc plate is fixedly connected to a material baffle plate, a rotating rod is fixedly connected to the center of the rotating sleeve, and an outer wall of the rotating rod is fixedly connected to a spiral stirring blade, and the rotating sleeve drives the spiral stirring blade to rotate through the rotating rod, so that the mixed raw materials can be transported outward through the material guide pipe.

[0013] Preferably, the outer wall of the rotating sleeve is rotatably connected to the inner wall of the heat-conducting tube, the center of the rotating sleeve is fixedly connected to the end of the driving shaft away from the driving motor, the outer wall of the material baffle is fixedly connected to the inner side of the rotating sleeve, the outer side of the spiral stirring blade is in contact with the inner wall of the material guide tube, and heat dissipation holes are opened in the wall of the rotating sleeve. The opening of the heat dissipation holes allows the mixed material to directly contact the heat-conducting tube when being stirred, so as to heat the mixed material.

[0014] The beneficial effects of the present invention are as follows:

[0015] 1. The present invention sets a conveying mechanism, and the output end of the driving motor drives the driving shaft and the driven shaft to rotate through the pulley group at the same time. The driving shaft drives the spiral conveying paddle to rotate, so that the raw materials entering the conveying pipe can be conveyed. The driven shaft can drive the feeding component to operate through the cam, and the auxiliary materials can be conveyed into the conveying pipe and mixed with the raw materials in the conveying pipe, thereby completing the process of raw material mixing during the conveying process;

[0016] 2. The present invention sets a conveying mechanism. Since the rotation speed of the driving shaft is proportional to the rotation speed of the driven shaft, the faster the driving shaft rotates, the faster the feeding speed. Therefore, when the feeding speed becomes faster, the speed at which the driven shaft drives the cam to rotate increases. At this time, the operating frequency of the feeding component becomes faster along with the rotation of the cam. Therefore, the amount of auxiliary material added per unit time increases, thereby achieving the purpose of adding raw materials and auxiliary materials in equal proportions. There is no need for manual adjustment by the staff, the operation process is simple, easy to use, and waste of resources is eliminated.

[0017] 3. The present invention sets a conveying mechanism, and the spiral conveying paddles and the guide plates are arranged alternately. Since the interval between the guide plates is smaller than the pitch of the spiral conveying paddles, the speed of the raw materials passing through the spiral conveying paddles is lower than the speed passing through the guide plates. Therefore, the conveying speed slows down when the raw materials pass through the guide plates. At the same time, the auxiliary materials in the feeding assembly enter the conveying pipe and are mixed with the raw materials passing through the guide plates. In this process, part of the raw materials and auxiliary materials can pass through the drop holes during the rotation of the guide plates, so that the mixing is more uniform.

[0018] 4. The present invention sets a material adding assembly, and the driven shaft drives the cam to rotate. The cam can push the arc top block downward during the downward rotation, so that the arc top block drives the sleeve to move downward through the sliding rod, and then the auxiliary material can fall into the feed pipe through the rectangular hole. When the cam deflects upward, the compression spring drives the sleeve to reset through the sliding plate and the sliding rod, which can prevent the material in the feed pipe from blocking the rectangular hole.

[0019] 5. The present invention provides a mixing mechanism, and the mixed materials enter the heat-conducting cylinder after passing through the feeding pipe. At this time, the driving shaft drives the stirring assembly to rotate, and the mixed materials in the heat-conducting cylinder continue to be stirred to make the mixture more evenly mixed. At the same time, the heating wire is heated by the heater, so that the heat is transferred to the stirring assembly through the heat-conducting cylinder, which can prevent the raw materials from cooling and solidifying when being stirred. The protective shell can block the hot air flow to prevent the hot air flow from being lost too quickly.

[0020] 6. The present invention sets a stirring assembly. When the stirring assembly is running, the driving shaft drives the rotating sleeve to rotate. At this time, the arc plate and the baffle plate can drive part of the mixed material to move upward together when rotating. Then, when the arc plate is about to run to the upper dead point, the material between the baffle plate and the arc plate can fall downward under the action of gravity, so that the mixed raw materials and the mixed material are mixed more evenly. The opening of the heat dissipation holes can make the mixed material directly contact with the heat-conducting cylinder when being stirred, so as to heat the mixed material.

[0021] 7. The present invention sets a mixing mechanism and a stirring assembly to cooperate with each other. When discharging is required, the hydraulic telescopic rod contracts to allow the discharging pipe to enter the rotating sleeve. At this time, the mixed material will fall into the discharging pipe as the rotating sleeve rotates. At the same time, the rotating sleeve drives the spiral stirring blade to rotate through the rotating rod, so that the mixed raw materials can be transported outward through the guide pipe, and the mixed material is finally discharged from the discharging pipe, thereby completing the discharging process. The operation process is simple and easy to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a front view of the present invention;

[0023] Figure 2 is a cross-sectional view of the present invention;

[0024] Figure 3 It is a structural schematic diagram of the conveying mechanism of the present invention;

[0025] Figure 4 The present invention Figure 3 A schematic diagram of the structure at A;

[0026] Figure 5 It is a structural schematic diagram of the material adding assembly of the present invention;

[0027] Figure 6 It is a schematic structural diagram of the mixing mechanism of the present invention;

[0028] Figure 7 is a side view of the mixing mechanism of the present invention;

[0029] Figure 8 It is a structural schematic diagram of the stirring assembly of the present invention.

[0030] In the figure: 1. base; 2. conveying mechanism; 3. mixing mechanism; 21. conveying pipe; 22. feeding hopper; 23. driving motor; 24. driving shaft; 25. driven shaft; 26. feeding assembly; 27. cam; 28. spiral conveying paddle; 29. ​​material guide plate; 20. material drop hole; 261. material drop pipe; 262. feeding pipe; 263. sliding rod; 264. sleeve; 265. rectangular hole; 266. arc top block; 267. sliding plate; 268. compression spring; 31. protective shell; 32. heat-conducting tube; 33. stirring assembly; 34. heater; 35. heating wire; 36. material discharge pipe; 37. material guide pipe; 38. connecting plate; 39. hydraulic telescopic rod; 331. rotating sleeve; 332. heat dissipation hole; 333. arc plate; 334. material blocking plate; 335. rotating rod; 336. spiral stirring blade. DETAILED DESCRIPTION

[0031] The present invention is further described in detail below in conjunction with the accompanying drawings and specific embodiments. The embodiments of the present invention are provided for the purpose of illustration and description, and are not intended to be exhaustive or to limit the present invention to the disclosed forms. Many modifications and variations will be apparent to those of ordinary skill in the art. The embodiments are selected and described in order to better illustrate the principles and practical applications of the present invention, and to enable those of ordinary skill in the art to understand the present invention and thereby design various embodiments with various modifications suitable for specific uses.

[0032] Example: See Figure 1 - Figure 8 The present invention provides a technical solution: an automatic feeding device for PVDF pipe production and processing, comprising:

[0033] Base 1; conveying mechanism 2, conveying mechanism 2 is used for conveying raw materials for PVDF tube production, and the top of conveying mechanism 2 is fixedly connected to the top of base 1 through a bracket; mixing mechanism 3, mixing mechanism 3 is used for mixing raw materials for PVDF tube production, the bottom of mixing mechanism 3 is fixedly connected to the top of base 1, and the outer side of mixing mechanism 3 is fixedly connected to the outer side of conveying mechanism 2, the device is placed at a designated position through base 1, and then the raw materials for PVDF tube production and processing are conveyed by conveying mechanism 2, and then the conveyed raw materials are mixed by mixing mechanism 3, and after being evenly mixed, the materials can be discharged from mixing mechanism 3, thereby completing the material conveying process;

[0034] The conveying mechanism 2 includes a conveying pipe 21, the outer side of the conveying pipe 21 is fixedly connected to a feed hopper 22, the top of the conveying pipe 21 is fixedly connected to a feeding assembly 26, a driving motor 23 is arranged on the outer side of the feeding assembly 26, the output end of the driving motor 23 is rotatably connected to a driving shaft 24, the outer wall of the driving shaft 24 is fixedly connected to a screw conveying paddle 28, the top of the conveying pipe 21 is rotatably connected to a driven shaft 25 through a bearing, the outer wall of the driven shaft 25 is fixedly connected to a cam 27, the outer wall of the driving shaft 24 is fixedly connected to a guide plate 29, the bottom of the conveying pipe 21 is fixedly connected to the top of the base 1 through a bracket, the top of the base 1 is fixedly connected to the outer side of the driving motor 23 through a frame, the outer wall of the driving shaft 24 is rotatably connected to the outer wall of the driven shaft 25 through a pulley group, the outer wall of the driving shaft 24 is rotatably connected to the inner wall of the feed hopper 22 through a bearing, and the top of the feeding assembly 26 is rotatably connected to the outer wall of the cam 27. Sliding connection, the outer walls of the screw conveying paddle 28 and the guide plate 29 are slidably connected to the inner wall of the conveying pipe 21, the outer wall of the conveying pipe 21 away from the driving motor 23 is fixedly connected to the outer side of the mixing mechanism 3, and a drop hole 20 is opened in the wall of the guide plate 29. During the conveying process of the raw materials, the raw materials are added to the conveying pipe 21 through the feed hopper 22, and then the driving motor 23 is started. The output end of the driving motor 23 drives the driving shaft 24 to rotate. At this time, the driving shaft 24 drives the screw conveying paddle 28 to rotate, and the raw materials entering the conveying pipe 21 are conveyed. At the same time, auxiliary materials are added to the adding component 26. At this time, the driving shaft 24 drives the driven shaft 25 to rotate through the pulley group, and the driven shaft 25 can drive the adding component 26 to run through the cam 27, and the auxiliary materials are conveyed to the conveying pipe 21 and mixed with the raw materials in the conveying pipe 21, thereby completing the raw material mixing process during the conveying process;

[0035] Since the rotation speed of the driving shaft 24 is proportional to the rotation speed of the driven shaft 25, the faster the rotation speed of the driving shaft 24, the faster the feeding speed. Therefore, when the feeding speed becomes faster, the driven shaft 25 drives the cam 27 to rotate faster. At this time, the operating frequency of the feeding component 26 becomes faster along with the rotation of the cam 27. Therefore, the amount of auxiliary material added per unit time increases, thereby achieving the purpose of adding raw materials and auxiliary materials in equal proportions. There is no need for manual adjustment by the staff, the operation process is simple, easy to use, and waste of resources is eliminated;

[0036] In the process of conveying raw materials, the screw conveying paddles 28 and the guide plates 29 are arranged alternately, so when the raw materials pass through the screw conveying paddles 28, they can enter between the guide plates 29. At this time, because the interval between the guide plates 29 is smaller than the pitch of the screw conveying paddles 28, the speed of the raw materials when passing through the screw conveying paddles 28 is lower than the speed when passing through the guide plates 29. Therefore, the conveying speed slows down when the raw materials pass through the guide plates 29. At the same time, the auxiliary materials in the feeding assembly 26 enter the conveying pipe 21 and mix with the raw materials passing through the guide plates 29. In this process, part of the raw materials and auxiliary materials can pass through the drop hole 20 during the rotation of the guide plates 29, so that the mixing is more uniform.

[0037] The feeding assembly 26 includes a feeding tube 261, the outer wall of the feeding tube 261 is fixedly connected to the feeding tube 262, the inner wall of the feeding tube 261 is fixedly connected to the compression spring 268, the top of the compression spring 268 is fixedly connected to the sliding plate 267, the center of the sliding plate 267 is fixedly connected to the sliding rod 263, the top of the sliding rod 263 is fixedly connected to the arc-shaped top block 266, the bottom of the sliding rod 263 is fixedly connected to the top of the feeding pipe 21, the inner wall of the feeding tube 261 is slidably connected to the outer wall of the sliding plate 267, the top of the arc-shaped top block 266 is slidably connected to the outer wall of the cam 27, the inner wall of the feeding tube 261 is slidably connected to the outer wall of the sleeve 264, and the wall of the sleeve 264 is provided with a There is a rectangular hole 265. When adding auxiliary materials, the auxiliary materials are put into the opening of the feeding tube 262 so that they enter the sleeve 264 through the drop tube 261. At the same time, the driven shaft 25 drives the cam 27 to rotate. The cam 27 can push the arc-shaped top block 266 downward during the downward rotation, so that the arc-shaped top block 266 drives the sleeve 264 to move downward through the sliding rod 263. At this time, the sliding plate 267 moves downward with the sliding rod 263 and forces the compression spring 268 to be compressed. Then the auxiliary materials can fall into the feeding pipe 21 through the rectangular hole 265. When the cam 27 deflects upward, the compression spring 268 drives the sleeve 264 to reset through the sliding plate 267 and the sliding rod 263, thereby preventing the materials in the feeding pipe 21 from blocking the rectangular hole 265.

[0038] The mixing mechanism 3 includes a protective shell 31, the inner wall of the protective shell 31 is fixedly connected to a heat-conducting cylinder 32, the inner wall of the heat-conducting cylinder 32 is rotatably connected to a stirring assembly 33, the bottom of the inner wall of the protective shell 31 is fixedly connected to a heater 34, the top of the heater 34 is fixedly connected to a heating wire 35, the outer wall of the heating wire 35 and the heat-conducting cylinder 32 is fixedly connected to a discharge pipe 36, the outer wall of the protective shell 31 is fixedly connected to a hydraulic telescopic rod 39, the output end of the hydraulic telescopic rod 39 is fixedly connected to a connecting plate 38, the top of the connecting plate 38 is fixedly connected to a material guide pipe 37, the bottom of the protective shell 31 is fixedly connected to the top of the base 1, and the outer side of the protective shell 31 is fixedly connected to the outer side of the feed pipe 21 The outer wall of the connecting plate 38 is slidably connected to the bottom of the discharge pipe 36 through a sliding hole, the inner wall of the discharge pipe 36 is slidably connected to the outer wall of the guide pipe 37, and the inner wall of the guide pipe 37 contacts the inner side of the stirring assembly 33. Then, the mixed material enters the heat-conducting cylinder 32 after passing through the feeding pipe 21. At this time, the driving shaft 24 drives the stirring assembly 33 to rotate, and the mixed material in the heat-conducting cylinder 32 continues to be stirred to make it more evenly mixed. At the same time, the heating wire 35 is heated by the heater 34, so that the heat is transferred to the stirring assembly 33 through the heat-conducting cylinder 32, which can prevent the raw materials from cooling and solidifying when being stirred. The protective shell 31 can block the hot air flow to prevent the hot air flow from being lost too quickly.

[0039] The stirring assembly 33 includes a rotating sleeve 331, the inner side of the rotating sleeve 331 is fixedly connected to an arc plate 333, and the arc plate 333 is arranged in a circular array along the central axis of the rotating sleeve 331, the outer wall of the arc plate 333 is fixedly connected to a material blocking plate 334, the center of the rotating sleeve 331 is fixedly connected to a rotating rod 335, the outer wall of the rotating rod 335 is fixedly connected to a spiral stirring blade 336, the outer wall of the rotating sleeve 331 is rotatably connected to the inner wall of the heat conducting cylinder 32, the center of the rotating sleeve 331 is fixedly connected to an end of the driving shaft 24 away from the driving motor 23, the outer wall of the material blocking plate 334 is fixedly connected to the inner side of the rotating sleeve 331, and the spiral stirring blade 336 is fixedly connected to the outer wall of the rotating rod 335. The outer side of 6 contacts with the inner wall of the guide tube 37, and a heat dissipation hole 332 is opened in the wall of the rotating sleeve 331. When the stirring assembly 33 is running, the driving shaft 24 drives the rotating sleeve 331 to rotate. At this time, the arc plate 333 and the baffle plate 334 can drive part of the mixed material to move upward together during rotation. Then, when the arc plate 333 is about to run to the top dead center, the material between the baffle plate 334 and the arc plate 333 can fall downward under the action of gravity, so that the mixed raw materials and the mixed materials are mixed more evenly. The opening of the heat dissipation hole 332 allows the mixed materials to directly contact with the heat-conducting cylinder 32 when being stirred, so as to heat the mixed materials.

[0040] When discharging is required, the hydraulic telescopic rod 39 drives the guide pipe 37 to retract into the discharge pipe 36 through the connecting plate 38, so that the discharge pipe 36 enters the rotating sleeve 331 and contacts the spiral stirring blade 336. At this time, the mixed material will fall into the discharge pipe 36 as the rotating sleeve 331 rotates. At the same time, the rotating sleeve 331 drives the spiral stirring blade 336 to rotate through the rotating rod 335, so that the mixed raw materials can be transported outward through the guide pipe 37, and the mixed material is finally discharged from the discharge pipe 36, thereby completing the discharging process. The operation process is simple and easy to use.

[0041] Working principle:

[0042] When in use, the device is placed at a designated position through the base 1, and then the raw materials for the production and processing of PVDF pipes are transported by the conveying mechanism 2, and then the transported raw materials are mixed by the mixing mechanism 3. After being evenly mixed, the materials can be discharged from the mixing mechanism 3, thereby completing the material transport process;

[0043] During the conveying process of the raw materials, the raw materials are added into the conveying pipe 21 through the feed hopper 22, and then the driving motor 23 is started. The output end of the driving motor 23 drives the driving shaft 24 to rotate, and at this time, the driving shaft 24 drives the screw conveying paddle 28 to rotate to convey the raw materials entering the conveying pipe 21. At the same time, the auxiliary materials are added into the adding component 26. At this time, the driving shaft 24 drives the driven shaft 25 to rotate through the pulley group, and the driven shaft 25 can drive the adding component 26 to operate through the cam 27, and the auxiliary materials are conveyed into the conveying pipe 21 and mixed with the raw materials in the conveying pipe 21, thereby completing the raw material mixing process during the conveying process;

[0044] Since the rotation speed of the driving shaft 24 is proportional to the rotation speed of the driven shaft 25, the faster the rotation speed of the driving shaft 24, the faster the feeding speed. Therefore, when the feeding speed becomes faster, the driven shaft 25 drives the cam 27 to rotate faster. At this time, the operating frequency of the feeding component 26 becomes faster along with the rotation of the cam 27. Therefore, the amount of auxiliary material added per unit time increases, thereby achieving the purpose of adding raw materials and auxiliary materials in equal proportions. There is no need for manual adjustment by the staff, the operation process is simple, easy to use, and waste of resources is eliminated;

[0045] In the process of conveying raw materials, the screw conveying paddles 28 and the guide plates 29 are arranged alternately, so that after the raw materials pass through the screw conveying paddles 28, they can enter between the guide plates 29. At this time, because the interval between the guide plates 29 is smaller than the pitch of the screw conveying paddles 28, the speed of the raw materials passing through the screw conveying paddles 28 is smaller than the speed of passing through between the guide plates 29. Therefore, the conveying speed of the raw materials slows down when passing through the guide plates 29. At the same time, the auxiliary materials in the feeding assembly 26 enter the conveying pipe 21 and mix with the raw materials passing through between the guide plates 29. In this process, part of the raw materials and auxiliary materials can pass through the drop holes 20 during the rotation of the guide plates 29, so that the mixing is more uniform.

[0046] When adding auxiliary materials, the auxiliary materials are put into the opening of the feeding tube 262, so that the auxiliary materials enter the sleeve 264 through the drop tube 261, and the driven shaft 25 drives the cam 27 to rotate. The cam 27 can push the arc top block 266 downward during the downward rotation, so that the arc top block 266 drives the sleeve 264 to move downward through the sliding rod 263. At this time, the sliding plate 267 moves downward together with the sliding rod 263, and forces the compression spring 268 to be compressed. Then, the auxiliary materials can fall into the feeding pipe 21 through the rectangular hole 265. When the cam 27 deflects upward, the compression spring 268 drives the sleeve 264 to reset through the sliding plate 267 and the sliding rod 263, so as to prevent the materials in the feeding pipe 21 from blocking the rectangular hole 265.

[0047] Then, the mixed materials enter the heat-conducting cylinder 32 after passing through the feeding pipe 21. At this time, the driving shaft 24 drives the stirring assembly 33 to rotate, and continues to stir the mixed materials in the heat-conducting cylinder 32 to make the mixture more uniform. At the same time, the heating wire 35 is heated by the heater 34, so that the heat is transferred to the stirring assembly 33 through the heat-conducting cylinder 32, which can prevent the raw materials from cooling and solidifying when being stirred. The protective shell 31 can block the hot air flow to prevent the hot air flow from being lost too quickly.

[0048] When the stirring assembly 33 is running, the driving shaft 24 drives the rotating sleeve 331 to rotate. At this time, the arc plate 333 and the material baffle plate 334 can drive part of the mixed material to move upward together during the rotation. Then, when the arc plate 333 is about to run to the top dead center, the material between the material baffle plate 334 and the arc plate 333 can fall downward under the action of gravity, so that the mixed raw materials and the mixed material are mixed more evenly. The heat dissipation holes 332 are opened so that the mixed material can directly contact the heat-conducting cylinder 32 when being stirred, so as to heat the mixed material.

[0049] When discharging is required, the hydraulic telescopic rod 39 drives the guide pipe 37 to retract into the discharge pipe 36 through the connecting plate 38, so that the discharge pipe 36 enters the rotating sleeve 331 and contacts the spiral stirring blade 336. At this time, the mixed material will fall into the discharge pipe 36 as the rotating sleeve 331 rotates. At the same time, the rotating sleeve 331 drives the spiral stirring blade 336 to rotate through the rotating rod 335, so that the mixed raw materials can be transported outward through the guide pipe 37, and the mixed material is finally discharged from the discharge pipe 36, thereby completing the discharging process. The operation process is simple and easy to use.

[0050] Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field and related fields without creative work should fall within the scope of protection of the present invention. The structures, devices and operating methods not specifically described and explained in the present invention are implemented according to the conventional means in the field unless otherwise specified and limited.

Claims

1. An automatic feeding device for PVDF pipe production and processing, characterized in that: include: Base (1); A conveying mechanism (2), the conveying mechanism (2) being used for conveying raw materials for producing PVDF pipes, the top of the conveying mechanism (2) being fixedly connected to the top of the base (1) via a bracket; A mixing mechanism (3), the mixing mechanism (3) being used for mixing raw materials for producing PVDF tubes, the bottom of the mixing mechanism (3) being fixedly connected to the top of the base (1), and the outer side of the mixing mechanism (3) being fixedly connected to the outer side of the conveying mechanism (2); The conveying mechanism (2) comprises a conveying pipe (21), the outer side of the conveying pipe (21) is fixedly connected to a feed hopper (22), the top of the conveying pipe (21) is fixedly connected to a feeding assembly (26), a driving motor (23) is arranged on the outer side of the feeding assembly (26), the output end of the driving motor (23) is rotatably connected to a driving shaft (24), the outer wall of the driving shaft (24) is fixedly connected to a screw conveying paddle (28), the top of the conveying pipe (21) is rotatably connected to a driven shaft (25) via a bearing, the outer wall of the driven shaft (25) is fixedly connected to a cam (27), and the outer wall of the driving shaft (24) is fixedly connected to a material guide plate (29); The feeding assembly (26) comprises a feeding tube (261), the outer wall of the feeding tube (261) is fixedly connected to a feeding tube (262), the inner wall of the feeding tube (261) is fixedly connected to a compression spring (268), the top of the compression spring (268) is fixedly connected to a sliding plate (267), the center of the sliding plate (267) is fixedly connected to a sliding rod (263), the top of the sliding rod (263) is fixedly connected to an arc-shaped top block (266), and the bottom of the sliding rod (263) is fixedly connected to a sleeve (264); The bottom of the drop tube (261) is fixedly connected to the top of the feed pipe (21), the inner wall of the drop tube (261) is slidably connected to the outer wall of the sliding plate (267), the top of the arc-shaped top block (266) is slidably connected to the outer wall of the cam (27), the inner wall of the drop tube (261) is slidably connected to the outer wall of the sleeve (264), and a rectangular hole (265) is provided in the wall of the sleeve (264).

2. The automatic feeding device for producing and processing PVDF pipes according to claim 1 is characterized in that: The bottom of the conveying pipe (21) is fixedly connected to the top of the base (1) via a bracket, the top of the base (1) is fixedly connected to the outer side of the driving motor (23) via a frame, the outer wall of the driving shaft (24) is rotatably connected to the outer wall of the driven shaft (25) via a pulley set, and the outer wall of the driving shaft (24) is rotatably connected to the inner wall of the feed hopper (22) via a bearing.

3. The automatic feeding device for PVDF pipe production and processing according to claim 1 is characterized by: The top of the material adding assembly (26) is slidably connected to the outer wall of the cam (27), the outer walls of the screw conveying paddle (28) and the material guide plate (29) are both slidably connected to the inner wall of the material conveying pipe (21), the outer wall of the material conveying pipe (21) away from the driving motor (23) is fixedly connected to the outer side of the mixing mechanism (3), and a material drop hole (20) is opened in the wall of the material guide plate (29).

4. The automatic feeding device for PVDF pipe production and processing according to claim 1 is characterized in that: The mixing mechanism (3) comprises a protective shell (31), the inner wall of the protective shell (31) is fixedly connected to a heat-conducting tube (32), the inner wall of the heat-conducting tube (32) is rotatably connected to a stirring assembly (33), the bottom of the inner wall of the protective shell (31) is fixedly connected to a heater (34), the top of the heater (34) is fixedly connected to a heating wire (35), the outer wall of the heat-conducting tube (32) is fixedly connected to a discharge pipe (36), the outer wall of the protective shell (31) is fixedly connected to a hydraulic telescopic rod (39), the output end of the hydraulic telescopic rod (39) is fixedly connected to a connecting plate (38), and the top of the connecting plate (38) is fixedly connected to a material guide pipe (37).

5. The automatic feeding device for PVDF pipe production and processing according to claim 4 is characterized in that: The bottom of the protective shell (31) is fixedly connected to the top of the base (1), the outer side of the protective shell (31) is fixedly connected to the outer side of the feed pipe (21), the outer wall of the connecting plate (38) is slidably connected to the bottom of the discharge pipe (36) through a sliding hole, the inner wall of the discharge pipe (36) is slidably connected to the outer wall of the guide pipe (37), and the inner wall of the guide pipe (37) is in contact with the inner side of the stirring assembly (33).

6. The automatic feeding device for producing and processing PVDF pipes according to claim 4 is characterized by: The stirring assembly (33) comprises a rotating sleeve (331), an arc-shaped plate (333) is fixedly connected to the inner side of the rotating sleeve (331), and the arc-shaped plates (333) are arranged in a ring array along the central axis of the rotating sleeve (331), a material blocking plate (334) is fixedly connected to the outer wall of the arc-shaped plate (333), a rotating rod (335) is fixedly connected at the center of the rotating sleeve (331), and a spiral stirring blade (336) is fixedly connected to the outer wall of the rotating rod (335).

7. The automatic feeding device for producing and processing PVDF pipes according to claim 6 is characterized by: The outer wall of the rotating sleeve (331) is rotatably connected to the inner wall of the heat-conducting tube (32); the center of the rotating sleeve (331) is fixedly connected to an end of the driving shaft (24) away from the driving motor (23); the outer wall of the material baffle plate (334) is fixedly connected to the inner side of the rotating sleeve (331); the outer side of the spiral stirring blade (336) is in contact with the inner wall of the material guide tube (37); and a heat dissipation hole (332) is provided in the wall of the rotating sleeve (331).

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