A feeding system

Abstract

This invention relates to a feeding system, comprising a feeding pipe, multiple batching components, a mixer, and a feeding assembly. The feeding pipe includes multiple conveying pipes, and the inlet ends of the multiple batching components are respectively connected to the multiple conveying pipes to dispense a predetermined amount of raw materials. The inlet end of the mixer is connected to the outlet end of the multiple batching components to mix multiple raw materials to obtain a mixture. The inlet end of the feeding assembly is connected to the outlet end of the mixer to dispense a predetermined amount of the mixture. The outlet end of the feeding assembly is connected to the inlet end of an extruder. Multiple raw materials are respectively conveyed to the multiple batching components and dispensed with the corresponding predetermined amounts of raw materials before being introduced into the mixer. The proportions between the multiple raw materials are highly accurate. After the mixer has finished mixing the multiple raw materials to obtain the mixture, the mixture is introduced into the feeding assembly until the weight reaches the predetermined amount, and then introduced into the extruder. This system can achieve precise control of the feeding into the extruder.

Description

Technical Field

[0001] This invention relates to the field of plastics technology, and more particularly to a feeding system. Background Technology

[0002] An extruder is an important plastic manufacturing machine, and most plastic products can be produced and manufactured through extrusion molding. The feeding system is crucial, providing the extruder with raw materials that meet the required quality standards.

[0003] For example, the invention patent with application number CN202110652512.6 proposes an extruder feeding system in which, when the motor starts, the electromagnetic slider slides up and down in the electromagnetic groove, causing the turntable to slide up and down in the powder discharge chamber, cleaning the inner wall of the rotating tube. At the same time, the motor shaft moves up and down, causing the rotating tube to rotate back and forth in the fixed shaft, preventing some of the inner wall of the rotating tube from being missed by the spring plate, resulting in a wider cleaning area and better cleaning effect.

[0004] However, existing feeding systems struggle to ensure the accuracy of the proportions between various raw materials. Summary of the Invention

[0005] In view of this, it is necessary to provide a feeding system to solve the problem that existing feeding systems cannot ensure the accuracy of the proportions between various raw materials.

[0006] This invention provides a feeding system, including a feeding pipe, multiple batching components, a mixer, and a feeding assembly. The feeding pipe includes multiple conveying pipes for conveying various raw materials. The feeding ends of the multiple batching components are respectively connected to the multiple conveying pipes to dispense a predetermined amount of raw materials. The feeding end of the mixer is connected to the discharging ends of the multiple batching components to mix the various raw materials to obtain a mixture. The feeding end of the feeding assembly is connected to the discharging end of the mixer to dispense a predetermined amount of the mixture. The discharging end of the feeding assembly is connected to the feeding end of an extruder.

[0007] Furthermore, the feeding pipeline also includes multiple raw material tanks and multiple vacuum pumps. One end of the conveying pipe is connected to the raw material tanks, and the other end of the conveying pipe is connected to the batching assembly via the vacuum pumps.

[0008] Furthermore, the batching assembly includes a batching tank and a first weighing element, the batching tank being mounted on the first weighing element, and the conveying pipe being connected to the batching tank.

[0009] Furthermore, the feeding assembly includes a feeding tank and a second weighing component, the feeding tank being mounted on the second weighing component, and the discharge end of the mixer being connected to the feeding tank.

[0010] Furthermore, it also includes a workstation, on which the batching component, the mixer, and the feeding component are sequentially installed in a vertically downward direction.

[0011] Furthermore, each of the multiple delivery pipes is equipped with a valve assembly to control the opening and closing of the delivery pipes.

[0012] Furthermore, the valve assembly includes a protective box and two valves;

[0013] The protective box has a protective channel that connects to the delivery pipe, and openings that connect to the protective channel are formed on both sides of the protective box.

[0014] The air valve includes an air pump and a valve body. The air pump is detachably connected to the protective box, and the output end of the air pump is detachably connected to the valve body. The two valve bodies are slidably and sealingly connected to the openings on both sides of the protective box. One valve body can be moved to a position at the opening on the side closer to the other valve body. The sliding path of the valve body passes through the protective channel and can abut against the other valve body to block the protective channel.

[0015] Furthermore, the delivery pipe has an opening and also includes a normally closed valve and a suction assembly;

[0016] The normally closed valve is installed at the unblocking port of the delivery pipe. The normally closed valve has a first state and a second state. When the normally closed valve is in the first state, the normally closed valve closes the unblocking port of the delivery pipe. When the normally closed valve is in the second state, the unblocking port connects the delivery pipe to the outside.

[0017] The suction assembly is installed on the pipeline and has a suction end. When the normally closed valve is in the second state, the suction end can pass through the drain port and extend into the pipeline.

[0018] Furthermore, it also includes three anti-leakage structures, one of which is located at the connection between the conveying pipe and the batching component, another of which is located at the connection between the batching component and the mixer, and the remaining one of which is located at the connection between the mixer and the feeding component.

[0019] Furthermore, the leak-proof structure includes a transfer bag and multiple elastic sheets;

[0020] The transfer bag has openings at both the top and bottom;

[0021] Multiple elastic sheets are evenly arranged along the circumference of the transfer bag and are fixedly connected to the transfer bag.

[0022] Compared with existing technologies, this system uses multiple conveying pipes to transport various raw materials to multiple batching components. These components are equipped with corresponding predetermined quantities of raw materials according to a certain ratio. Finally, the raw materials are introduced into the mixer. The ratio between the various raw materials is highly accurate. After the mixer has mixed the multiple raw materials to obtain a mixture, it is introduced into the feeding component. The feeding component can calculate the weight of the mixture until the weight reaches the predetermined quantity, and then it is introduced into the extruder. This system can achieve precise control of the feeding of the extruder. Attached Figure Description

[0023] Figure 1 This is a front view schematic diagram of the overall feeding system provided in an embodiment of the present invention;

[0024] Figure 2 This is a side view of the overall feeding system provided in an embodiment of the present invention;

[0025] Figure 3 This is a top view of the overall feeding system provided in an embodiment of the present invention;

[0026] Figure 4 This is a schematic diagram of the valve body assembly in the feeding system provided in an embodiment of the present invention;

[0027] Figure 5 A schematic diagram of the air valve switching principle in the feeding system provided in an embodiment of the present invention;

[0028] Figure 6 This is a schematic diagram of the disassembly and assembly structure of the air valve in the feeding system provided in an embodiment of the present invention;

[0029] Figure 7 This is a schematic diagram of the anti-clogging device in the feeding system provided in an embodiment of the present invention;

[0030] Figure 8 The feeding system provided in the embodiments of the present invention Figure 7 Enlarged diagram of section A in the middle;

[0031] Figure 9 This is a schematic diagram of the structure of the cover plate in the feeding system provided in an embodiment of the present invention;

[0032] Figure 10 The feeding system provided in the embodiments of the present invention Figure 7 Sectional view of plane AA;

[0033] Figure 11 This is a schematic diagram of the anti-leakage structure in the feeding system provided in an embodiment of the present invention;

[0034] Figure 12 This is a schematic diagram of the structure of the elastic sheet installed in the transfer bag in the feeding system provided by an embodiment of the present invention;

[0035] Figure 13 This is a schematic diagram of the structure of multiple connecting cloths connected in the feeding system provided in an embodiment of the present invention;

[0036] Figure 14 This is a schematic diagram of the structure of the elastic sheet in the feeding system provided in an embodiment of the present invention. Detailed Implementation

[0037] Preferred embodiments of the present invention will now be described in detail with reference to the accompanying drawings, which form part of this application and are used together with the embodiments of the present invention to illustrate the principles of the present invention, but are not intended to limit the scope of the present invention.

[0038] like Figure 1-3 As shown, the present invention provides a feeding system including a feeding pipe M100, multiple batching components M200, a mixer M300, and a feeding component M400. The feeding pipe M100 includes multiple conveying pipes M110 for conveying multiple raw materials. The feeding ends of the multiple batching components M200 are respectively connected to the multiple conveying pipes M110 to be equipped with a predetermined amount of raw materials. The feeding end of the mixer M300 is connected to the discharge end of the multiple batching components M200 to mix the multiple raw materials to obtain a mixture. The feeding end of the feeding component M400 is connected to the discharge end of the mixer M300 to be equipped with a predetermined amount of mixture. The discharge end of the feeding component M400 is connected to the feeding end of the extruder.

[0039] During implementation, multiple raw materials are conveyed to multiple batching components M200 through multiple conveying pipes M110. The multiple batching components M200 are equipped with corresponding predetermined quantities of raw materials according to a certain ratio. Finally, the raw materials are introduced into the mixer M300. The ratio between the multiple raw materials is highly accurate. After the mixer M300 has completed mixing the multiple raw materials to obtain a mixture, the mixture is introduced into the feeding component M400. The feeding component M400 can calculate the weight of the mixture inside. When the weight reaches the predetermined measurement, it is introduced into the extruder. This system can achieve precise control of the feeding of the extruder.

[0040] In this embodiment, the feed pipe M100 is a structure for conveying multiple raw materials to multiple batching components M200. The feed pipe M100 includes multiple conveying pipes M110 for conveying multiple raw materials.

[0041] In one embodiment, the feed pipe M100 further includes multiple raw material bins M120 and multiple vacuum pumps M130. One end of the conveying pipe M110 is connected to the raw material bins M120, and the other end of the conveying pipe M110 is connected to the batching assembly M200 via the vacuum pumps M130. The raw material bins M120 are used to store raw materials. The negative pressure generated in the conveying pipe M110 by the vacuum pumps M130 draws the raw materials from the raw material bins M120 into the conveying pipe M110 and then into the batching assembly M200.

[0042] In this embodiment, the batching component M200 is used to prepare a predetermined amount of raw materials, wherein the feed ends of multiple batching components M200 are respectively connected to multiple conveying pipes M110.

[0043] In one embodiment, the batching assembly M200 includes a batching tank M210 and a first weighing element M220. The batching tank M210 is mounted on the first weighing element M220, and the conveying pipe M110 is connected to the batching tank M210.

[0044] In this embodiment, the feed end of the mixer M300 is connected to the discharge end of multiple batching components M200 to mix various raw materials to obtain a mixture.

[0045] To introduce various ingredients from multiple ingredient tanks M210 into the mixer M300, a horizontal pipe M310 is also included. The horizontal pipe M310 is closed at both ends, and its top is connected to the discharge end of the multiple ingredient tanks M210. The horizontal pipe M310 is also connected to the feed end provided on the side wall or top of the mixer M300.

[0046] In this embodiment, the feed end of the feeding component M400 is connected to the discharge end of the mixer M300 to provide a predetermined amount of mixed material, and the discharge end of the feeding component M400 is connected to the feed end of the extruder.

[0047] In one embodiment, the feeding assembly M400 includes a feeding tank M410 and a second weighing component M420. The feeding tank M410 is mounted on the second weighing component M420, and the discharge end of the mixer M300 is connected to the feeding tank M410.

[0048] To facilitate the sequential flow of materials between the batching component M200, the mixer M300, and the feeding component M400, this embodiment also includes a workstation M500, on which the batching component M200, the mixer M300, and the feeding component M400 are installed in a vertically downward direction.

[0049] like Figure 4As shown, in this embodiment, multiple delivery pipes M110 are equipped with air valve assemblies to control the opening and closing of the delivery pipes M110. The air valve assembly includes a protective box A100 and two air valves A200. The protective box A100 has a protective channel that connects to the delivery pipe M110. Openings A110 that connect to the protective channel are formed on both sides of the protective box A100. The air valve A200 includes an air pump A210 and a valve body A220. The air pump A210 is detachably connected to the protective box A100. The output end of the air pump A210 is detachably connected to the valve body A220. The two valve bodies A220 are slidably and sealed to the openings A110 on both sides of the protective box A100. One valve body A220 can be moved to the position of the opening A110 near the other valve body A220. The sliding path of the valve body A220 runs through the protective channel and can abut against the other valve body A220 to block the protective channel.

[0050] In implementation, the protective box A100 is installed on the conveying pipe M110 for conveying plastic granules. The granules in the conveying pipe M110 at one end of the protective channel can pass through the protective channel to the conveying pipe M110 at the other end of the protective channel. To open and close the conveying pipe M110, an air valve A200 is provided. An air pump A210 drives the valve body A220 to move to a position that blocks the protective channel, thereby closing the conveying pipe M110. When one side of the air pump A210... After failure, valve body A220 may get stuck in the position of closing conveying pipe M110, which may cause material blockage. To address this, the air pump A210 on the other side drives the valve body A220 connected to it to move the valve body A220 corresponding to the failed air pump A210 to the opening A110 on the corresponding side of the protective box A100. At this time, the air valve A200 on the other side takes over the work of the failed air valve A200, and there is no need for a spare conveying pipe M110. The flow of granules in the conveying pipe M110 is good.

[0051] In this embodiment, the protective box A100 is installed on the conveying pipe M110. A protective channel is formed inside the protective box A100, which is connected to the conveying pipe M110. Openings A110 connected to the protective channel are formed on both sides of the protective box A100.

[0052] In this embodiment, the air valve A200 is designed to open and close the delivery pipe M110. The air valve A200 includes an air pump A210 and a valve body A220. The air pump A210 is detachably connected to the protective box A100, and the output end of the air pump A210 is detachably connected to the valve body A220. The two valve bodies A220 are slidably and sealed to the openings A110 on both sides of the protective box A100. One valve body A220 can be moved to the position of the opening A110 near the other valve body A220. The sliding path of the valve body A220 passes through the protective channel and can abut against the other valve body A220 to block the protective channel.

[0053] In one embodiment, a rectangular protective channel is formed inside the protective box A100, the top and bottom of the valve body A220 can slide against the inner wall of the protective box A100, and a sealing ring is provided on the inner wall of the opening A110 of the protective box A100.

[0054] In order to know the actual position of valve body A220 and to determine whether air valve A200 is in normal condition, this embodiment also includes two detection components A300. The detection components A300 are fixedly connected to the protective box A100. The two detection components A300 correspond one-to-one with the two valve bodies A220 and are used to detect the position information of the corresponding valve body A220.

[0055] In one embodiment, the detection component A300 includes a laser emitter A310 and a laser receiver A320, which are fixedly connected to the protective box A100. The emitting end of the laser emitter A310 is positioned to point towards the laser receiver A320, and the movement path of the valve body A220 passes through the gap between the laser emitter A310 and the laser receiver A320. When valve body A220 moves to the side near another valve body A220 and is positioned at opening A110, the delivery pipe M110 opens, and the light signal emitted by laser emitter A310 is blocked by valve body A220. At this time, laser receiver A320 cannot receive the signal from laser emitter A310, and valve body A220 can be determined to be in the first position. When valve body A220 moves to abut against another valve body A220, the delivery pipe M110 closes, and the light signal emitted by laser emitter A310 can be received by laser receiver A320, and valve body A220 can be determined to be in the second position. The first and second positions mentioned above are the actual positions of valve body A220.

[0056] By comparing the command signal input to air pump A210 with the actual position of valve body A220, it can be determined whether air pump A210 is in normal working condition. Specifically, when the command signal input to air pump A210 is to extend the output end of air pump A210, if valve body A220 is in the first position, air pump A210 is malfunctioning; if valve body A220 is in the second position, air pump A210 is working normally. Similarly, when the command signal input to air pump A210 is to retract the output end of air pump A210, if valve body A220 is in the first position, air pump A210 is working normally; if valve body A220 is in the second position, air pump A210 is malfunctioning.

[0057] like Figure 5As shown, when the air pump A210 fails, in order to make the backup air valve A200 work in place of the failed air valve A200, this embodiment also includes a controller A400. The controller A400 is electrically connected to the detection component A300 to receive the position information of the valve body A220. The controller A400 is also electrically connected to the air pump A210 to drive the air pump A210 to operate according to the position information of the valve body A220.

[0058] It is understandable that the controller A400 can be one or more of a DCS system or a PLC control system, which is a structure that can be conceived by those skilled in the art.

[0059] To position the valve body A220 in the failed valve A200 in the first position and block the opening A110 on the corresponding side, this embodiment also includes two electromagnets A500. The two electromagnets A500 are located on the opposite side of the two valve bodies A220. The electromagnets A500 are fixedly connected to the protective box A100. When the side of the valve body A220 closer to the other valve body A220 is located in the opening A110, the side of the valve body A220 away from the other valve body A220 abuts against the electromagnet A500. The controller A400 is electrically connected to the electromagnet A500. When the electromagnet A500 on the side of the failed valve A200 is energized, the electromagnet A500 generates a magnetic attraction force and magnetically connects with the valve body A220 to lock the valve body A220 in the current position.

[0060] like Figure 6 As shown, in order to achieve a detachable connection between the air pump A210 and the valve body A220, in one embodiment, the output end of the air pump A210 is fixedly connected to an output shaft A211, and the side of the valve body A220 near the air pump A210 is fixedly connected to a slide rod A221. It also includes a U-shaped connecting block A250 and two nuts A251. The two ends of the U-shaped connecting block A250 pass through the through holes opened on the output shaft A211 and the slide rod A221, respectively, and are connected to the two nuts A251 respectively.

[0061] To ensure stable sliding of the slide bar A221, in one embodiment, a connecting frame A230 and a fixing frame A240 are further included. The connecting frame A230 is fixedly connected to the protective box A100, the slide bar A221 is slidably connected to the connecting frame A230, the fixing frame A240 is fixedly connected to the connecting frame A230, and the air pump A210 is detachably connected to the fixing frame A240.

[0062] To achieve a detachable connection between the air pump A210 and the connecting box, in one embodiment, the air pump A210 engages with a slot A241 opened on the top of the mounting bracket A240.

[0063] To facilitate the sealing and protection of the valve body A220, in one embodiment, a V-shaped tip is formed on the opposite side of the two valve bodies A220.

[0064] like Figure 7-8 As shown, due to material blockage in the conveying pipe M110, a clearing port M111 is formed on the conveying pipe M110. This embodiment also includes an anti-blocking device, which includes a normally closed valve B100 and a suction assembly B200. The normally closed valve B100 is installed at the clearing port M111 of the conveying pipe M110. The normally closed valve B100 has a first state and a second state. When the normally closed valve B100 is in the first state, the normally closed valve B100 closes the clearing port M111 of the conveying pipe M110. When the normally closed valve B100 is in the second state, the clearing port M111 connects the conveying pipe M110 to the outside. The suction assembly B200 is installed on the conveying pipe M110 and has a suction end. When the normally closed valve B100 is in the second state, the suction end can pass through the clearing port M111 and extend into the conveying pipe M110.

[0065] During implementation, the normally closed valve B100 is installed at the unblocking port M111 of the conveying pipe M110. When the conveying pipe M110 is operating normally, the normally closed valve B100 is in the first state, and the unblocking port M111 is closed. When the conveying pipe M110 is blocked, the normally closed valve B100 switches to the second state. At the same time, the suction end of the suction component B200 passes through the unblocking port M111 and extends into the conveying pipe M110 to remove the material that has hardened inside the conveying pipe M110. This achieves the function of unblocking the blocked conveying pipe M110, replacing the manual knocking of the conveying pipe M110 and avoiding any impact on the conveying pipe M110 and the various components installed on it.

[0066] In this embodiment, the normally closed valve B100 is installed at the drain port M111 of the delivery pipe M110. The normally closed valve B100 has a first state and a second state. When the normally closed valve B100 is in the first state, the normally closed valve B100 closes the drain port M111 of the delivery pipe M110. When the normally closed valve B100 is in the second state, the drain port M111 connects the delivery pipe M110 with the outside.

[0067] like Figure 8 As shown, in one embodiment, the normally closed valve B100 includes two cover plates B110 and two springs B120 arranged opposite to each other. One end of each spring B120 is fixedly connected to the delivery pipe M110, and the other end of each spring B120 is fixedly connected to the two cover plates B110 respectively. The opposite sides of the two cover plates B110 are rotatably connected to the unblocking port M111 of the delivery pipe M110 and can be rotated to a first position and a second position. When the two cover plates B110 are rotated to the first position, the opposite sides of the two cover plates B110 are spaced apart. When the two cover plates B110 are rotated to the second position, the opposite sides of the two cover plates B110 abut against each other to block the unblocking port M111.

[0068] like Figure 9 As shown, the normally closed valve B100 also includes two rotating shafts B111, two sealing gaskets B112, and a limiting sleeve B130. The opposite sides of the two cover plates B110 are rotatably connected to the delivery pipe M110 via the two rotating shafts B111. The two sealing gaskets B112 are fixedly installed at the edges of the cover plates B110. When the two cover plates B110 rotate to the second position, the two sealing gaskets B112 abut against and abut against the unblocking port M111 of the delivery pipe M110. The limiting sleeve B130 is threadedly connected to the unblocking port M111 of the delivery pipe M110. The stepped groove of the limiting sleeve B130 abuts against the two cover plates B110 rotated to the second position.

[0069] The suction end of the suction assembly B200 can be moved toward the cover plate B110 until the cover plate B110 is rotated from the first position to the second position. The suction end can extend into the delivery pipe M110. When the suction end exits the delivery pipe M110, the cover plate B110 rotates from the second position to the first position under the action of the spring B120.

[0070] Of course, in other embodiments, the normally closed valve B100 may also be replaced by other structural forms.

[0071] In this embodiment, the suction assembly B200 is installed on the delivery pipe M110. The suction assembly B200 has a suction end. When the normally closed valve B100 is in the second state, the suction end can pass through the drainage port M111 and extend into the delivery pipe M110.

[0072] In one embodiment, the suction assembly B200 includes an air source B210, a suction pipe B220, and a storage bin B230. Both the air source B210 and the storage bin B230 are connected to the conveying pipe M110. The air inlet of the air source B210 is connected to the suction pipe B220, which forms the suction end. The air outlet of the air source B210 is connected to the storage bin B230. The air source B210 provides the power source, using the suction pipe B220 to extract material blocked in the conveying pipe M110 and store it in the storage bin B230. The air source B210 can be a centrifugal pump or similar structure.

[0073] Generally, when the valve assembly fails, the valve body portion of the delivery pipe M110 is prone to blockage. Therefore, the normally closed valve B100 is located on the delivery pipe M110 near the valve assembly. However, it's possible that blockages may occur at various points on the delivery pipe M110. Therefore, in one embodiment, multiple normally closed valves B100 are used, each corresponding to a different unblocking port M111 on the delivery pipe M110. The suction assembly B200 also includes a guide assembly B300. The air source B210 and the storage bin B230 are both fixedly mounted on the guide assembly B300, which is slidably connected to the delivery pipe M110 along its length. The guide assembly B300 allows the suction assembly B200 to be moved to different locations on the delivery pipe M110, avoiding the need for multiple suction assemblies and saving costs.

[0074] like Figure 10 As shown, in order to enable the guide component B300 to move along the conveying pipe M110, in one embodiment, the guide component B300 includes a bracket B310 and a plurality of rollers B320. The air source B210 is mounted on the bracket B310. The plurality of rollers B320 are evenly arranged circumferentially along the conveying pipe M110 and are rotatably connected to the bracket B310. The rollers B320 abut against the outer wall of the conveying pipe M110.

[0075] To facilitate the movement of the drive bracket B310, a power system, such as a power supply, motor, and drive rod, can be installed on the roller B320.

[0076] Of course, in other embodiments, the guide component B300 can also adopt other structural forms. For example, the guide component B300 can be implemented by using a bracket B310 and a slide rail. The slide rail is fixed on the conveying pipe M110, and the bracket B310 is slidably connected to the slide rail.

[0077] In order to facilitate control of the suction tube B220 entering and exiting the unblocking port M111 of the delivery tube M110, in one embodiment, the suction tube B220 is slidably connected to the bracket B310 in a direction perpendicular to the delivery tube M110.

[0078] Simultaneously, to facilitate the sliding of the suction tube B220, a pushing assembly B400 is also included. The pushing assembly B400 is fixedly mounted on the bracket B310, and its output end is connected to the suction tube B220 to drive its sliding. The end of the suction tube B220 furthest from the delivery tube M110 is closed and fixedly connected to the output end of the pushing assembly B400. The air inlet of the air source B210 is connected to the side wall of the suction tube B220 via a corrugated pipe B311. The pushing assembly B400 can be implemented using a cylinder or similar structure.

[0079] It should be noted that a power supply can be equipped on bracket B310 to provide power to the aforementioned air source B210 and jacking assembly B400.

[0080] like Figure 11 As shown, this embodiment also includes three anti-leakage structures. One anti-leakage structure is located at the connection between the conveying pipe M110 and the batching component M200, another anti-leakage structure is located at the connection between the batching component M200 and the mixer M300, and the remaining anti-leakage structure is located at the connection between the mixer M300 and the feeding component M400. Each anti-leakage structure includes a transfer bag C100 and multiple elastic sheets C200. The transfer bag C100 has openings at both its top and bottom. The multiple elastic sheets C200 are evenly arranged around the circumference of the transfer bag C100 and are fixedly connected to it.

[0081] like Figure 11 As shown, taking the connection between the conveying pipe M110 and the mixing tank M210 as an example, the top of the transfer bag C100 is provided with an opening that communicates with the end of the conveying pipe M110, and the bottom of the transfer bag C100 is provided with an opening that communicates with the feed pipe of the mixing tank M210. Multiple elastic plates C200 are evenly arranged around the circumference of the transfer bag C100 and are fixedly connected to the transfer bag C100. The elastic plates C200 extend from the end of the conveying pipe M110 toward the feed pipe of the mixing tank M210. The top of the elastic plate C200 is connected to the end of the conveying pipe M110, and the bottom of the elastic plate C200 is connected to the feed pipe of the mixing tank M210.

[0082] In implementation, by connecting the end of the conveying pipe M110 to the feed pipe of the batching tank M210 via the transfer bag C100, the raw material conveyed in the conveying pipe M110 can be introduced into the batching tank M210. Simultaneously, multiple elastic plates C200 are evenly arranged circumferentially around the transfer bag C100 and fixedly connected to it. The elastic plates C200 extend from the end of the conveying pipe M110 towards the feed pipe of the batching tank M210. The top of the elastic plate C200 is connected to the end of the conveying pipe M110, and the bottom of the elastic plate C200 is connected to the feed pipe of the batching tank M210. As the raw material passes through the transfer bag C100, the elastic plates C200 can bear the force exerted by the raw material on the transfer bag C100, preventing the transfer bag C100 from detaching from the end of the conveying pipe M110, ensuring a stable connection between the transfer bag C100 and the conveying pipe M110, and preventing material leakage.

[0083] It should be noted that the feed pipe of the mixing tank M210 is usually set vertically, while the end of the conveying pipe M110 may be set at an angle downwards. In this case, if welding is used, a conversion elbow needs to be set between the two. The machining accuracy of the conversion elbow is extremely high and it is not easy to achieve. The end of the conveying pipe M110 may also be set vertically. However, it is difficult to ensure that the end of the conveying pipe M110 is directly opposite the feed pipe of the mixing tank M210. Therefore, welding is difficult to apply in this case. Hence, a transfer bag C100 needs to be set between the two.

[0084] In this embodiment, the top of the transfer bag C100 is provided with an opening that communicates with the end of the conveying pipe M110, and the bottom of the transfer bag C100 is provided with an opening that communicates with the feed pipe of the mixing tank M210. In order to prevent the transfer bag C100 from detaching from the conveying pipe M110, multiple elastic sheets C200 are also included. The multiple elastic sheets C200 are evenly arranged around the circumference of the transfer bag C100 and fixedly connected to the transfer bag C100. The elastic sheets C200 extend from the end of the conveying pipe M110 toward the feed pipe of the mixing tank M210. The top of the elastic sheet C200 is connected to the end of the conveying pipe M110, and the bottom of the elastic sheet C200 is connected to the feed pipe of the mixing tank M210.

[0085] The elastic deformation of multiple elastic plates C200 ensures that the installation position of the top and bottom openings of the transfer bag C100 is unrestricted, while the multiple elastic plates C200 limit the downward movement of the transfer bag C100.

[0086] like Figure 12 As shown, in the first embodiment, the transfer bag C100 includes a first annular layer C110 and a second annular layer C120. The first annular layer C110 is built into the second annular layer C120 and the first annular layer C110 is connected to the second annular layer C120. The elastic sheet C200 is disposed between the first annular layer C110 and the second annular layer C120.

[0087] In one embodiment, the first annular layer C110 and the second annular layer C120 are connected by a suture C130 to form a plurality of placement cavities corresponding one-to-one with a plurality of elastic sheets C200, and the elastic sheets C200 are built into the corresponding placement cavities.

[0088] In another embodiment, the first annular layer C110, the plurality of elastic sheets C200 and the second annular layer C120 are bonded together by adhesive.

[0089] In the second embodiment, a plurality of elastic sheets C200 are fixedly disposed on the outside of the transfer bag C100.

[0090] In the third embodiment, a plurality of elastic sheets C200 are fixedly disposed inside the transfer bag C100.

[0091] To accommodate different pipe diameters, in one embodiment, the transfer bag C100 includes multiple connecting fabrics connected end-to-end along a circumferential direction.

[0092] The method of connecting multiple connecting fabrics is not limited; for example, multiple connecting fabrics can be sewn together. Another example is... Figure 13 As shown, a male chain C140 and a female chain C150 are fixedly connected to both sides of the connecting fabric, and the male chain C140 on any connecting fabric is connected to the female chain C150 on the adjacent connecting fabric.

[0093] like Figure 14 As shown, in order to fix the elastic sheet C200 relative to the conveying pipe M110 and the mixing tank M210, in one embodiment, the elastic sheet C200 is provided with protrusions C210 at the top and bottom, and also includes two clamps C300. The clamps C300 are located between the two protrusions C210 of the elastic sheet C200 and abut against the protrusions C210. ​​The two clamps C300 are respectively sleeved on the end of the conveying pipe M110 and the feed pipe of the mixing tank M210.

[0094] Compared with existing technologies: Multiple raw materials are conveyed to multiple batching components M200 through multiple conveying pipes M110. The batching components M200 are equipped with corresponding predetermined quantities of raw materials according to a certain ratio. Finally, the raw materials are introduced into the mixer M300. The ratio between the multiple raw materials is highly accurate. After the mixer M300 has finished mixing the multiple raw materials to obtain a mixture, the mixture is introduced into the feeding component M400. The feeding component M400 can calculate the weight of the mixture inside. When the weight reaches the predetermined measurement, it is introduced into the extruder. This system can achieve precise control of the feeding of the extruder.

[0095] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any changes or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in the present invention should be included within the scope of protection of the present invention.

Claims

1. A feeding system, characterized in that, Includes feed pipes, multiple batching components, a mixer, and a feeding assembly; The feed pipeline includes multiple conveying pipes for conveying various raw materials; The feed ends of the multiple batching components are respectively connected to the multiple conveying pipes for dispensing a predetermined amount of raw materials; The feed end of the mixer is connected to the discharge end of the multiple batching components to mix multiple raw materials to obtain a mixture. The feed end of the feeding assembly is connected to the discharge end of the mixer to provide a predetermined amount of mixed material, and the discharge end of the feeding assembly is connected to the feed end of the extruder. Each of the aforementioned delivery pipes is equipped with a pneumatic valve assembly to control the on / off state of the delivery pipes; The valve assembly includes a protective box and two valves; The protective box has a protective channel that connects to the delivery pipe, and openings that connect to the protective channel are formed on both sides of the protective box. The air valve includes an air pump and a valve body. The air pump is detachably connected to the protective box, and the output end of the air pump is detachably connected to the valve body. The two valve bodies are slidably and sealingly connected to the openings on both sides of the protective box. One valve body can be moved to a position at the opening on the side closer to the other valve body. The sliding path of the valve body passes through the protective channel and can abut against the other valve body to block the protective channel. The delivery pipe has an opening and also includes a normally closed valve and a suction assembly. The normally closed valve is installed at the unblocking port of the delivery pipe. The normally closed valve has a first state and a second state. When the normally closed valve is in the first state, the normally closed valve closes the unblocking port of the delivery pipe. When the normally closed valve is in the second state, the unblocking port connects the delivery pipe to the outside. The suction assembly is installed on the delivery pipe and has a suction end. When the normally closed valve is in the second state, the suction end can pass through the unblocking port and extend into the delivery pipe.

2. The feeding system according to claim 1, characterized in that, The feeding pipeline also includes multiple raw material tanks and multiple vacuum pumps. One end of the conveying pipe is connected to the raw material tanks, and the other end of the conveying pipe is connected to the batching assembly via the vacuum pumps.

3. The feeding system according to claim 1, characterized in that, The batching assembly includes a batching tank and a first weighing device. The batching tank is installed on the first weighing device, and the conveying pipe is connected to the batching tank.

4. The feeding system according to claim 1, characterized in that, The feeding assembly includes a feeding tank and a second weighing component. The feeding tank is installed on the second weighing component, and the discharge end of the mixer is connected to the feeding tank.

5. The feeding system according to claim 1, characterized in that, It also includes a workstation, on which the batching component, the mixer and the feeding component are installed in sequence in a vertically downward direction.

6. The feeding system according to claim 1, characterized in that, It also includes three anti-leakage structures, one of which is located at the connection between the conveying pipe and the batching component, another of which is located at the connection between the batching component and the mixer, and the remaining one of which is located at the connection between the mixer and the feeding component.

7. The feeding system according to claim 6, characterized in that, The leak-proof structure includes a transfer bag and multiple elastic sheets; The transfer bag has openings at both the top and bottom; Multiple elastic sheets are evenly arranged along the circumference of the transfer bag and are fixedly connected to the transfer bag.

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