Extrusion feeding device, extrusion molding system and control method

Abstract

The present application relates to the technical fields of plastic forming of metal materials, and discloses an extrusion feeding device, an extrusion forming system and a control method.The extrusion feeding device comprises a feeding module and a feeding driving module.The feeding module is arranged between an extrusion driving device and an extrusion forming device.The feeding module is provided with a plurality of feeding portions for loading bars.The plurality of feeding portions extend through along a first direction.The feeding module is provided with a heating assembly for heating the bars of the plurality of feeding portions.The feeding driving module is used to drive the feeding module to move in a direction perpendicular to the first direction, so as to control the feeding module to move out of or into a working position between the extrusion driving device and the extrusion forming device.The present application uses the heating assembly and the plurality of feeding portions to complete bar replenishment and temperature stabilization in the extrusion stroke, can accurately control the extrusion temperature of the bars, and ensures the controllability of the extrusion process conditions.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of plastic forming of metal materials, in particular to an extrusion feeding device, an extrusion forming system and a control method. BACKGROUND

[0002] Adopting multiple small-diameter rods to replace a single large-diameter rod for extrusion forming can effectively reduce the extrusion ratio, which is an important method to realize one-time integral extrusion of wide aluminum alloy profiles / plates with low extrusion pressure. However, in the multi-rod extrusion process, multiple rod feeding processes need to be carried out for each extrusion cycle, which is more complex than the traditional single-rod feeding process. At present, the feeding operation of the aluminum alloy extrusion production line is realized by manual or mechanical hand. The manual feeding method has high labor intensity, low efficiency, and it is difficult to ensure that each feeding process is standardized and no accidents occur. The mechanical hand feeding method is limited by the clamp and heating furnace equipment, and only one rod can be clamped at a time, the feeding action is not continuous, and the feeding transfer efficiency is low. At the same time, there are differences in the sequence of each rod transfer, the rods are exposed to the air for a long time and are inconsistent, resulting in large heat loss during the feeding process, making it difficult to ensure the accuracy and consistency of the rod temperature, and affecting the forming quality of the extrusion process. SUMMARY

[0003] The present application aims to provide an extrusion feeding device, an extrusion forming system and a control method to solve one or more technical problems existing in the prior art, at least to provide a beneficial choice or create conditions.

[0004] To solve the above technical problems, the technical scheme adopted by the present application is as follows:

[0005] The present application provides an extrusion feeding device, comprising:

[0006] A charging module is arranged between the extrusion driving device and the extrusion forming device, the charging module is provided with a plurality of charging portions for charging rods, and the plurality of charging portions extend through along a first direction, wherein the first direction is defined as the direction in which the extrusion driving device and the extrusion forming device are arranged at intervals, and the charging module is provided with a heating assembly for heating the rods in the plurality of charging portions;

[0007] A feeding driving module is in transmission connection with the charging module, and the feeding driving module is used to drive the charging module to move in a direction perpendicular to the first direction, so as to control the charging module to move out of or into the working position between the extrusion driving device and the extrusion forming device.

[0008] As a further improvement of the above technical scheme, the charging portion is a charging hole.

[0009] As a further improvement of the above technical solution, the two ends of the charging hole are respectively provided with a sealable sealing mechanism.

[0010] As a further improvement of the above technical solution, the heating assembly comprises a plurality of heating units, and each of the plurality of heating units corresponds to one of the plurality of charging portions and separately heats the bar in the corresponding charging portion.

[0011] As a further improvement of the above technical solution, the plurality of charging portions are arranged in a matrix, and the plurality of charging portions comprises a plurality of layers of charging portions, and each layer of charging portions comprises a predetermined number of charging portions.

[0012] The feeding drive module is further used to control the plurality of layers of charging portions to move to the feeding position in sequence, and when each layer of charging portions is at the feeding position, the two ends of the charging portions in each layer are respectively opposite to the extrusion drive device and the extrusion forming device.

[0013] As a further improvement of the above technical solution, the feeding drive module comprises a first drive mechanism and a second drive mechanism, the first drive mechanism is used to drive the charging module to move out of or into the extrusion drive device and the extrusion forming device, and the second drive mechanism is used to drive the plurality of layers of charging portions to move to the feeding position in sequence.

[0014] As a further improvement of the above technical solution, the first drive mechanism comprises a feeding guide rail, a support seat slidingly installed on the feeding guide rail in a second direction, and a first drive structure used to drive the support seat to move, the second drive mechanism comprises a lifting slider slidingly installed on the support seat in a third direction, and a second drive structure used to drive the lifting slider to move, and the charging module is installed on the lifting slider.

[0015] The application further provides an extrusion forming system comprising the extrusion feeding device, an extrusion drive device and an extrusion forming device, the extrusion drive device and the extrusion forming device are oppositely arranged along a first direction, and the charging module is arranged between the extrusion drive device and the extrusion forming device.

[0016] As a further improvement of the above technical solution, the extrusion drive device comprises a plurality of extrusion rods extending along the first direction, and an extrusion drive structure used to drive the plurality of extrusion rods to move along the first direction.

[0017] The extrusion forming device comprises an extrusion cylinder seat and a plurality of extrusion dies connected in sequence along the first direction, the extrusion cylinder seat is close to the extrusion drive device, and the extrusion cylinder seat is provided with a plurality of extrusion holes corresponding to the plurality of extrusion rods.

[0018] Further, the application also provides a control method of the extrusion forming system, and the control method comprises the following steps:

[0019] controlling the loading of the bar to be extruded into the plurality of loading parts;

[0020] controlling the heating of the bar to a preset temperature and keeping the temperature for a preset time;

[0021] controlling the moving of the loading module into the position between the extrusion driving device and the extrusion forming device;

[0022] controlling the pushing of the bar of the preset loading part into the extrusion forming device by the extrusion driving device;

[0023] controlling the moving of the loading module out of the position between the extrusion driving device and the extrusion forming device;

[0024] controlling the extrusion of the bar in the extrusion forming device by the extrusion driving device;

[0025] controlling the loading of the new bar into the loading part from which the bar has been unloaded and the heating and keeping of the temperature.

[0026] The application has the following beneficial effects:

[0027] In use, the loading module is controlled to move out of the position between the extrusion driving device and the extrusion forming device to the loading position, and then the bar is loaded into the plurality of loading parts, and the bar is heated and kept by the heating assembly. When the extrusion starts, the loading module is controlled to move into the working position between the extrusion driving device and the extrusion forming device to load the bar, and after the loading is completed, the loading module is moved out of the working position to the loading position, which does not interfere with the extrusion operation between the extrusion driving device and the extrusion forming device. The application uses the heating assembly and the plurality of loading parts to complete the replenishment of the bar and the stabilization of the temperature in the extrusion stroke, realizes the continuous supply of the bar, and after the extrusion action is completed, only one moving action is needed to perform the extrusion forming of the next stroke. The extrusion stroke does not need to wait for the bar to be transferred out of the furnace, and the bar is not completely exposed to the air, which greatly limits the heat loss of the bar during the loading process, guarantees the temperature consistency of the plurality of bars, and greatly improves the production efficiency. At the same time, during the loading, the bar on the preset loading part can be controlled to load according to the demand, and other bars are kept in the loading module to be heated and kept, so that the bar has sufficient time to stabilize and homogenize the temperature after entering the loading device. In addition, the bar can be directly heated in the loading device to avoid the transfer of the bar, the extrusion temperature of the bar can be accurately controlled, and the controllability of the extrusion process conditions is guaranteed.

[0028] Other features and advantages of the application will be set forth in the following description, and in part will become apparent to those skilled in the art from the description, or can be learned by practice of the application. BRIEF DESCRIPTION OF DRAWINGS

[0029] The application will be further described below in conjunction with the accompanying drawings and embodiments.

[0030] Figure 1 is a structural schematic diagram of an embodiment of the extrusion forming system provided by the application;

[0031] Figure 2 is a structural schematic diagram of an embodiment of the extrusion feeding device provided by the application;

[0032] Figure 3 is a flow chart of an embodiment of the control method of the extrusion forming provided by the application;

[0033] Reference signs:

[0034] The loading module 100; the loading part 110; the heating unit 120;

[0035] The feeding driving module 200; the first driving mechanism 210; the feeding guide rail 211; the support seat 212; the second driving mechanism 220; the lifting slide 221;

[0036] The extrusion driving device 300; the extrusion rod 310;

[0037] The extrusion forming device 400; the extrusion cylinder seat 410; the extrusion hole 411;

[0038] The extrusion die 420. DETAILED DESCRIPTION

[0039] The embodiments of the application will be described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar notations represent the same or similar elements or elements with the same or similar functions throughout. The embodiments described below by referring to the accompanying drawings are exemplary and are only used to explain the application, and cannot be understood as a limitation of the application.

[0040] In the description of the application, it should be understood that the orientation description, such as the upper, lower, etc. The orientation or positional relationship shown in the drawings is only for the convenience of describing the application and simplifying the description, and does not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation of the application.

[0041] In the description of the application, the plural refers to two or more. If there is a description of the first, second, it is only for the purpose of distinguishing technical features, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of indicated technical features or implicitly indicating the sequence of indicated technical features.

[0042] In the description of the present application, the words such as arrangement, installation, connection and the like should be understood in a broad sense unless otherwise explicitly limited, and the skilled in the art can reasonably determine the specific meaning of the above words in the present application in combination with the specific content of the technical solution.

[0043] The technical solutions of the present application will be described clearly and completely in combination with the accompanying drawings. Obviously, the following described embodiments are part of the embodiments of the present application, not all embodiments.

[0044] With the development of lightweight transportation equipment, aluminum extruded materials have been widely used in the fields of automobiles, rail transportation, aerospace, ships and the like, becoming an important lightweight material to replace traditional steel materials. Taking high-speed rail as an example, about 90% of high-speed rail vehicles use aluminum alloy car bodies, and the aluminum profile usage accounts for more than 90%, and the rest are aluminum plates.

[0045] Using multiple extrusion rods 310 and multiple small-diameter aluminum alloy bars to replace a single large-diameter bar can effectively reduce the extrusion ratio, which is an important method to realize low extrusion pressure one-time overall extrusion of wide aluminum alloy profiles / plates. However, in the multi-bar extrusion process, multiple bar feeding processes are required for each extrusion cycle, which is more complex than the traditional single-bar feeding process. At present, the feeding operation of the aluminum alloy extrusion production line is realized by manual or mechanical hand.

[0046] Whether it is manual feeding or mechanical feeding, the bar is inevitably exposed to the air during the interval between tapping and extrusion. At the same time, the transfer of each bar has a difference in sequence, the bar is exposed to the air for a long time and is inconsistent, resulting in a large heat loss during the feeding process, making it difficult to ensure the accuracy and consistency of the bar temperature, and the full contact with the air also accelerates the formation of aluminum bar surface oxides, which all affect the forming quality of the subsequent extrusion process.

[0047] Therefore, the present application provides an extrusion feeding device, which realizes short-time automatic feeding, greatly shortens the time of bar tapping and transfer and feeding during extrusion travel, and reduces the heat loss and oxidation of the bar in the air.

[0048] As shown in Figure 1 The extrusion feeding device of the present application includes a feeding module 100 and a feeding drive module 200.

[0049] As shown in Figure 2 The feeding module 100 is arranged between the extrusion drive device 300 and the extrusion forming device 400, and the extrusion drive device 300 and the extrusion forming device 400 are arranged in a first direction. In this embodiment, the first direction is defined as the front-back direction. In other embodiments, the first direction can be set as left-right or up-down direction, etc. This embodiment takes the first direction as the front-back direction as an example.

[0050] As shown in Figure 1 and 2 The charging module 100 of the embodiment is distributed with a plurality of charging portions 110 for charging the bars, the plurality of charging portions 110 extend through in the front-rear direction, the bars can be fixedly placed on the charging portions 110, and can move in the front-rear direction under the action of an external force.

[0051] The charging module 100 of the embodiment is provided with a heating assembly for heating the bars on the plurality of charging portions 110.

[0052] The feeding driving module 200 of the application is in transmission connection with the charging module 100, and is used to drive the charging module 100 to move in a direction perpendicular to the first direction, so as to control the charging module 100 to move out of or into the working position between the extrusion driving device 300 and the extrusion forming device 400.

[0053] In use, the charging module 100 is controlled to move out of the working position between the extrusion driving device 300 and the extrusion forming device 400 to a charging position, then the bars are charged in the plurality of charging portions 110, the bars are heated and kept warm by the heating assembly, then the charging module 100 is controlled to move into the working position between the extrusion driving device 300 and the extrusion forming device 400 for feeding, and in the feeding, the extrusion driving device 300 pushes the bars into the extrusion forming device 400.

[0054] After the feeding, the charging module 100 is moved out of the working position between the extrusion driving device 300 and the extrusion forming device 400, and does not interfere with the extrusion operation between the extrusion driving device 300 and the extrusion forming device 400, and at this time, the extrusion driving device 300 extrudes and forms the bars in the extrusion forming device 400.

[0055] The application adopts the heating assembly and the plurality of charging portions 110, completes the replenishment and temperature stabilization of the bars in the extrusion stroke, realizes the continuous supply of the bars, and after the extrusion action is completed and exits, only one moving-in action is needed to perform the extrusion forming of the next stroke, and there is no need to wait for the bars to be transferred out of the furnace between the extrusion strokes, which greatly improves the production efficiency, and the efficiency improvement is more significant when multiple bars are extruded at the same time, and is suitable for the extrusion forming of wide aluminum alloy profiles / plates.

[0056] And in the feeding, the bars on the preset charging portions 110 can be controlled to feed according to the needs, and other bars are retained in the charging module 100 for heating and keeping warm, so that the bars have sufficient time to stabilize the temperature and homogenize after entering the feeding device, and in other embodiments, the bars can also be heated directly in the feeding device, avoiding the transfer of high-temperature bars, greatly limiting the heat loss of the bars in the feeding process, and being able to accurately control the extrusion temperature of the bars, and ensuring the controllability of the extrusion process conditions.

[0057] The charging part 110 of the embodiment is a charging hole, and the bar is filled in the charging hole, and the movement of the bar is guided. The diameter of each charging hole can be the same or different.

[0058] In other embodiments, the charging part 110 can be a groove structure.

[0059] Further, the two ends of the charging hole are respectively provided with openable and closable sealing mechanisms (not shown in the figure), when the bar is filled or pushed, the corresponding sealing mechanism is opened, and when heated and transferred, the two ends of the charging hole are closed, reducing the contact area and contact time between the bar and the air during the feeding process, thereby further reducing the heat loss, and also inhibiting the oxidation process of the surface of the aluminum bar during the feeding process, reducing the generation of oxides, which is beneficial to improve the quality of the extruded product and improve the performance of the heating and insulation.

[0060] Specifically, the sealing mechanism of the embodiment includes a sealing plate and a sealing driving structure, the sealing plate is used to block the charging hole, and the sealing driving structure is used to drive the sealing plate to overturn around one side edge of the charging hole to realize the opening and closing of the sealing plate, wherein the sealing driving structure can adopt a servo motor, and the edge of the sealing plate is hinged with the edge of the charging hole through a hinge shaft, and the servo motor is in transmission connection with the hinge shaft. In other embodiments, the sealing driving structure can drive the sealing plate to move along the circumference of the charging hole to realize the opening and closing of the sealing plate.

[0061] The heating assembly of the application includes a plurality of heating units 120, which correspondingly heat the bars in the plurality of charging parts 110, and the heating unit 120 of the embodiment is a sleeve structure which is sleeved in the charging hole.

[0062] The heating temperature of the plurality of heating units 120 can be the same or different to meet different extrusion process requirements.

[0063] Further, the plurality of charging parts 110 of the embodiment are arranged in a matrix, and the plurality of charging parts 110 include a plurality of layers of charging parts 110, and each layer of charging parts 110 includes a predetermined number of charging parts 110.

[0064] The feeding driving module 200 of the embodiment is also used to control the multilayer loading parts 110 to move to the feeding position in sequence, and when each layer of the loading parts 110 is at the feeding position, the two ends of the loading parts 110 in each layer are respectively opposite to the extrusion driving device 300 and the extrusion forming device 400. It can be understood that the bars in one layer of the loading parts 110 can be simultaneously pushed into the extrusion forming device 400, which is suitable for the extrusion forming of wide aluminum alloy profiles / plates, and in each extrusion, the bars on one layer of the loading parts 110 can be pushed into the extrusion forming device 400, while the bars of the loading parts 110 of other layers continue to be pressurized and kept warm for use in the next extrusion, and in each filling operation, only new bars are filled into the just emptied loading parts 110, and the loading parts 110 of another layer are controlled to move to the feeding position, so that the bars have sufficient time to stabilize and homogenize in temperature after entering the feeding device.

[0065] The feeding driving module 200 of the embodiment includes a first driving mechanism 210 and a second driving mechanism 220, the first driving mechanism 210 is used to drive the loading module 100 to move out of or into the working position between the extrusion driving device 300 and the extrusion forming device 400, and the second driving mechanism 220 is used to drive the multilayer loading parts 110 to move to the feeding position in sequence.

[0066] The first driving mechanism 210 of the embodiment is used to drive the loading module 100 to move out of and into the working position, and the second driving mechanism 220 is used to drive the loading module 100 to move to control the multilayer loading parts 110 to move to the feeding position in sequence.

[0067] Specifically, the first driving mechanism 210 of the embodiment includes a feeding guide rail 211, a support seat 212 slidingly installed on the feeding guide rail 211 in a second direction, and a first driving structure (not shown in the figure) used to drive the support seat 212 to move, and the second driving mechanism 220 includes a lifting slider 221 slidingly installed on the support seat 212 in a third direction, and a second driving structure (not shown in the figure) used to drive the lifting slider 221 to move, and the loading module 100 is installed on the lifting slider 221.

[0068] The second direction of the embodiment is set as the left-right direction, the third direction is set as the up-down direction, the multilayer loading parts 110 are arranged in the up-down direction in intervals, and the loading parts 110 in each layer are arranged in the left-right direction in intervals. In other embodiments, the arrangement mode of the loading parts 110 can be determined according to the shape of the profile / plate, and is not limited to the arrangement mode of the embodiment.

[0069] The first driving structure and the second driving structure can adopt a linear driving structure such as a pneumatic cylinder, an electric rod, etc.

[0070] In some other embodiments, the feeding module 100 can be moved out of and into the working position by a driving mechanism, and the multi-layer feeding part 110 can be sequentially moved to the feeding position by the second driving mechanism 220. Specifically, the feeding module 100 is moved out of the feeding position by moving the feeding module 100 from bottom to top by the second driving mechanism 220, the feeding module 100 is moved into the working position by moving the feeding module 100 from top to bottom by the second driving mechanism 220, and then the feeding module 100 is moved up and down between the extrusion driving device 300 and the extrusion forming device 400 by the second driving mechanism 220 to control the corresponding layer of the feeding part 110 to move to the feeding position.

[0071] As shown in Figure 1 , the present application further provides an extrusion forming system, which comprises the extrusion feeding device, the extrusion driving device 300 and the extrusion forming device 400. The extrusion driving device 300 and the extrusion forming device 400 are arranged opposite to each other along the front-back direction, and the feeding module 100 is arranged between the extrusion driving device 300 and the extrusion forming device 400.

[0072] The extrusion driving device 300 comprises a plurality of extrusion rods 310 extending along the front-back direction and an extrusion driving structure (not shown in the figure) for driving the plurality of extrusion rods 310 to move along the front-back direction. The extrusion driving structure of the present embodiment comprises a linear driving structure and a driving seat. The plurality of extrusion rods 310 are installed on the driving seat, and the linear driving structure drives the driving seat to reciprocate along the front-back direction to drive the plurality of extrusion rods 310 to move along the front-back direction.

[0073] The extrusion forming device 400 of the present embodiment comprises an extrusion barrel seat 410 and a plurality of extrusion dies 420 connected in sequence along the front-back direction. The extrusion barrel seat 410 is close to the extrusion driving device 300. The extrusion barrel seat 410 is provided with a plurality of extrusion holes 411 arranged opposite to the plurality of extrusion rods 310 one by one. During feeding, the bar stock on the feeding module 100 is pushed into the plurality of extrusion holes 411 by the plurality of extrusion rods 310, and then the feeding module 100 is moved out. The plurality of extrusion rods 310 are controlled to enter the plurality of extrusion holes 411 again to extrude the bar stock. The bar stock passes through the plurality of extrusion dies 420 and is extruded into a certain length of profile / plate.

[0074] In addition, as shown in Figure 3 , the present application further provides an extrusion forming control method, which is suitable for the extrusion forming system described above. The control method comprises the following steps:

[0075] Step S100: controlling to fill the bar stock to be extruded into the plurality of feeding parts 110;

[0076] Step S200: controlling to heat the bar stock to a preset temperature and keep the temperature for a preset time;

[0077] Step S300: control the charging module 100 to move into the position between the extrusion driving device 300 and the extrusion forming device 400;

[0078] Step S400: control the extrusion driving device 300 to push the bar in the preset charging part 110 into the extrusion forming device 400;

[0079] Step S500: control the charging module 100 to move out from between the extrusion driving device 300 and the extrusion forming device 400;

[0080] Step S600: control the extrusion driving device 300 to extrude the bar in the extrusion forming device 400;

[0081] Step S700: control to charge new bar into the charging part 110 where the bar has been unloaded, and heat and keep warm.

[0082] In step S100, the preheated bar is charged into the charging hole, or the bar at normal temperature is charged into the charging hole, and after charging, the two ends of the charging hole are closed by the sealing mechanism.

[0083] In step S200, according to the extrusion process, the charging hole is heated to the required temperature in advance, so as to improve the efficiency of heating the bar.

[0084] In step S300, the first driving structure of the embodiment drives the support seat 212 to move transversely, so as to drive the charging module 100 to move into the working position between the extrusion driving device 300 and the extrusion forming device 400, and the second driving structure drives the lifting slide 221 to lift, so as to move the charging hole of the corresponding layer to the feeding position.

[0085] In step S400, the sealing mechanism on the charging hole in the feeding position is opened, and the bar in the feeding position is pushed into the plurality of extrusion holes 411 by the plurality of extrusion rods 310.

[0086] In step S500, the extrusion rod 310 retreats out of the feeding device, and then the first driving mechanism 210 drives the charging module 100 to move out of the working position. In the embodiment, the charging module 100 is moved away from the side.

[0087] In step S600, the extrusion rod 310 continues to push forward into the extrusion hole 411, and the extrusion process starts.

[0088] In step S700, the new bar is loaded into the loading hole from which the bar has been unloaded, the sealing mechanism at the front and back ends of the loading hole is closed, and heating and holding are performed, and step S600 and step S700 are performed synchronously, and the second driving mechanism 220 is further required to drive the loading hole of the other layer to the loading position to replace the position of the loading hole in the original step S300.

[0089] When one extrusion stroke is completed, the extrusion rod 310 is withdrawn, the loading module 100 is moved into the working position again, and steps S300-S700 are repeated, and after a certain length of profile / plate is extruded, the extrusion is stopped.

[0090] In the description of the present specification, the description referring to the terms "one embodiment", "some embodiments", "exemplary embodiment", "example", "specific example", or "some examples" and the like means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present application. In the present specification, the exemplary description of the above terms does not necessarily mean the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0091] The embodiments of the present application are described in detail above in combination with the drawings, but the present application is not limited to the above embodiments, and various changes can be made within the knowledge of those skilled in the art without departing from the purpose of the present application.

Claims

1. An extrusion feeding device, characterized by The device comprises: a loading module arranged between the extrusion driving device and the extrusion forming device, the loading module is provided with a plurality of loading portions for loading the rod material, the plurality of loading portions extend through along a first direction, wherein the first direction is arranged as a direction in which the extrusion driving device and the extrusion forming device are arranged at intervals, the loading module is provided with a heating assembly for heating the rod material in the plurality of loading portions; a loading driving module in transmission connection with the loading module, the loading driving module is used to drive the loading module to move in a direction perpendicular to the first direction, so as to control the loading module to move out of or into a working position between the extrusion driving device and the extrusion forming device, and control the extrusion driving device to push the rod material in the preset loading portion into the extrusion forming device; the loading portion is a loading hole; both ends of the loading hole are respectively provided with switchable sealing mechanisms; the heating assembly comprises a plurality of heating units, and the plurality of heating units correspondingly and individually heat the rod material in the plurality of loading portions; the plurality of loading portions are arranged in a matrix; the loading driving module is also used to control a plurality of layers of the loading portions to move to a loading position in sequence, and when each layer of the loading portions is at the loading position, both ends of the loading portions in each layer are respectively opposite to the extrusion driving device and the extrusion forming device; the loading driving module comprises a first driving mechanism and a second driving mechanism, the first driving mechanism is used to drive the loading module to move out of or into the extrusion driving device and the extrusion forming device, and the second driving mechanism is used to drive the plurality of layers of the loading portions to move to the loading position in sequence.

2. The extrusion loading device according to claim 1, wherein: the first driving mechanism comprises a loading guide rail, a support seat slidingly installed on the loading guide rail along a second direction, and a first driving structure used to drive the support seat to move, the second driving mechanism comprises a lifting slider slidingly installed on the support seat along a third direction, and a second driving structure used to drive the lifting slider to move, and the loading module is installed on the lifting slider.

3. An extrusion forming system characterized by, The device comprises the extrusion loading device, the extrusion driving device and the extrusion forming device according to any one of claims 1 or 2, the extrusion driving device and the extrusion forming device are arranged at intervals along a first direction, and the loading module is arranged between the extrusion driving device and the extrusion forming device.

4. The extrusion forming system according to claim 3, wherein: the extrusion driving device comprises a plurality of extrusion rods extending along the first direction, and an extrusion driving structure used to drive the plurality of extrusion rods to move along the first direction; the extrusion forming device comprises an extrusion cylinder seat and a plurality of extrusion dies connected in sequence along the first direction, the extrusion cylinder seat is close to the extrusion driving device, and the extrusion cylinder seat is provided with a plurality of extrusion holes corresponding to the plurality of extrusion rods.

5. A control method of extrusion molding characterized by, The control method is suitable for the extrusion forming system according to any one of claims 3 or 4, and the control method comprises: controlling the rod material to be extruded to be loaded into the plurality of loading portions; controlling the bar material to be heated to a preset temperature and kept for a preset time; controlling the charging module to move into a position between the extrusion driving device and the extrusion forming device; controlling the extrusion driving device to push the bar material in the charging part into the extrusion forming device; controlling the charging module to move out from between the extrusion driving device and the extrusion forming device; controlling the extrusion driving device to extrude the bar material in the extrusion forming device; controlling new bar material to be charged into the charging part from which the bar material has been unloaded and heated and kept.

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