A multi-station uninterrupted casting device, method, process

By using a multi-station uninterrupted casting device and method, the problems of low production efficiency and difficulty in forming hollow castings in one step in the existing technology have been solved, realizing a high-efficiency and low-cost casting process that is suitable for the manufacture of precision and high-hardness products.

CN113102723BActive Publication Date: 2026-01-13SHENZHEN BEIGONG IND CO LTD
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Patent Information

Application Number
CN202110532837.0
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2021-05-17
Publication Date
2026-01-13
Estimated Expiration
2041-05-17

AI Technical Summary

Technical Problem

Most existing pressure casting machines have only one casting station, resulting in intermittent operation, low production efficiency, high cost, and inability to form hollow castings in one casting and demolding process, leading to complex processing technology and low component hardness.

Method used

A multi-station uninterrupted casting device was designed, which adopts a sliding frame and a mold-locking mechanism, combined with a moving mold and a fixed mold to form a casting mold, realizing multi-station casting. Liquid raw materials are injected through a pressure injection device, and with the use of a liner, hollow casting parts can be cast and demolded in one step.

Benefits of technology

It enables a continuous casting process, improving production efficiency and reducing costs. It also allows for one-time casting of hollow castings, increasing product hardness and making it suitable for special fields such as precision, high precision, and high hardness.

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Abstract

The present application relates to a kind of multi-station uninterrupted casting device and casting process, when using, control locking mechanism to run to the last end of sliding frame, make a set of casting mold close another set of casting mold open;When casting mold opens, the lining body matched with the hollow space of casting part is placed in the chamber of casting mold and the position corresponding to the hollow space of casting part, then control casting mold to close;While another set of casting mold closes, the liquid raw material of casting part is injected into the chamber of casting mold to cast casting part;After the injection of the liquid raw material of casting part is completed and solidified, open mold, take out the casting part in the chamber of casting mold and the lining body in the hollow space of casting part for heat treatment, so that the lining body is liquefied;So as to realize uninterrupted casting, greatly improve work efficiency and production cost, and cast forming once for the casting part provided with hollow space, greatly improve the hardness of product, and be widely used in precision, high precision, high hardness and other special fields.
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Description

Technical Field

[0001] This invention belongs to the field of multi-station continuous casting technology, and particularly relates to a multi-station continuous casting device, method, and process. Background Technology

[0002] Most existing pressure casting machines have only one casting station, resulting in intermittent operation, low production efficiency, and high costs. Furthermore, the existing pressure casting process cannot form the entire hollow casting part in one casting and demolding process, leading to complex processing and low overall hardness of the parts. Summary of the Invention

[0003] In view of the shortcomings of the prior art, the purpose of this invention is to provide a multi-station uninterrupted casting device, method, and process, which aims to solve the problems of low production efficiency, high cost, large size, and inability to demold hollow casting parts in one go due to the inability of the prior art to provide an effective uninterrupted casting process.

[0004] On one hand, the present invention provides a multi-station uninterrupted casting device, the device comprising:

[0005] A sliding frame and a mold-locking mechanism that slides back and forth on the sliding frame; wherein, a fixed mold is provided at the left and right ends of the sliding frame, and a movable mold is provided at the left and right ends of the mold-locking mechanism, and the movable mold and the fixed mold cooperate to form a casting mold;

[0006] The locking mechanism is located between the fixed mold at the left end and the fixed mold at the right end of the sliding frame. When the locking mechanism slides back and forth on the sliding frame, when the moving mold at the right end of the locking mechanism is close to the fixed mold at the right end of the sliding frame, the moving mold at the left end of the locking mechanism moves away from the fixed mold at the left end of the sliding frame, and vice versa.

[0007] The multi-station uninterrupted casting device of the present invention includes a first groove on one side of the moving mold near the fixed mold, and a second groove on one side of the fixed mold near the moving mold.

[0008] The groove surface of the first groove is similar to the shape of the left end of the casting, and the groove surface of the second groove is similar to the shape of the right end of the casting.

[0009] The first groove and the second groove cooperate to form the cavity of the casting mold, and the cavity of the casting mold shapes the surface contour of the casting.

[0010] The multi-station uninterrupted casting device of the present invention comprises a first set of casting molds, wherein the fixed mold at the right end of the sliding frame and the movable mold at the right end of the locking mechanism constitute a first set of casting molds, and the fixed mold at the left end of the sliding frame and the movable mold at the left end of the locking mechanism constitute a second set of casting molds; when the first set of casting molds is closed, the second set of casting molds is opened.

[0011] The multi-station uninterrupted casting device of the present invention includes a first injection hole on the shaping mold, one end of the first injection hole being connected to the second groove and the other end being used to inject liquid raw material of the casting. The liquid raw material of the casting is injected into the cavity of the casting mold from the first injection hole.

[0012] The multi-station uninterrupted casting device of the present invention includes a first injection hole arranged laterally on the fixed mold; a pressure injection device is provided on the side of the fixed mold away from the moving mold, the pressure injection device includes an injection nozzle, the output end of the injection nozzle is located in the first injection hole, and the output end of the injection nozzle is connected to the cavity of the casting mold.

[0013] The pressure injection device pressurizes the liquid raw material of the casting into the cavity of the casting mold through the injection nozzle.

[0014] In the multi-station uninterrupted casting apparatus of the present invention, when the liquid raw material for the casting is injected into the cavity of the casting mold, the output end of the injection nozzle extends into the first injection hole, and vice versa.

[0015] The multi-station uninterrupted casting device of the present invention includes a casting mold that further comprises a plurality of static fixed molds and a plurality of dynamic fixed molds. The static fixed molds are fixedly connected to the sliding frame, and the dynamic fixed molds are fixedly connected to the mold locking mechanism.

[0016] The static fixed mold is located on the side of the fixed mold away from the moving mold and is fixedly connected to the fixed mold; the moving fixed mold is located on the side of the moving mold away from the fixed mold and is fixedly connected to the moving mold.

[0017] The static fixed mold has a second injection hole horizontally opposite to the first injection hole, and the injection nozzle passes through the second injection hole and slides back and forth in the second injection hole.

[0018] The multi-station uninterrupted casting apparatus of the present invention includes a pressure injection device located on the side of the static mold away from the fixed mold and further comprising an injection device and an injection cylinder, wherein the input end of the injection nozzle is connected to the injection cylinder; the injection device presses the liquid raw material of the casting part in the injection cylinder into the cavity of the casting mold through the injection nozzle.

[0019] On the other hand, the present invention provides a multi-station uninterrupted casting method, the method comprising:

[0020] The mold-locking mechanism is mounted on the sliding frame and slides back and forth on the sliding frame;

[0021] A casting mold is provided at each of the left and right ends of the mold-locking mechanism;

[0022] When the locking mechanism is at the very end of either end of the sliding frame, one set of casting molds closes and the other set of casting molds opens.

[0023] On the other hand, the present invention provides a multi-station uninterrupted casting process, the process comprising:

[0024] The mold-locking mechanism is mounted on the sliding frame, and the mold-locking mechanism is controlled to slide back and forth on the sliding frame.

[0025] A casting mold is provided at each of the left and right ends of the mold-locking mechanism;

[0026] When the mold-locking mechanism is at the very end of either end of the sliding frame, one set of the casting molds closes and the other set of the casting molds opens.

[0027] When the casting mold is opened, a liner that matches the hollow space of the casting is placed in the cavity of the casting mold at a position corresponding to the hollow space of the casting, and then the casting mold is closed.

[0028] After the casting mold is closed, the liquid raw material for the casting is injected into the cavity of the casting mold to cast the casting part;

[0029] After the liquid raw material of the casting is injected and solidified, the mold is opened and the casting and the liner located in the hollow space of the casting are taken out from the cavity of the casting mold.

[0030] The casting is heat-treated at a temperature higher than the melting point of the liner but lower than the melting point of the casting, and the liner is liquefied.

[0031] The liquefied liner is removed from the hollow space of the casting.

[0032] The beneficial effects of this invention are as follows: During use, the mold-locking mechanism is controlled to run to the very end of either side of the sliding frame, causing one of the first or second casting molds to close while the other opens. When the casting mold opens, a liner matching the hollow space of the casting is placed in the cavity of the casting mold at a position corresponding to the hollow space of the casting. Then, the casting mold is controlled to close. Simultaneously, after the other casting mold closes, liquid raw material for the casting is injected into the cavity of the casting mold to cast the casting. After the liquid raw material injection is completed and solidified, the mold is opened, and the casting and the liner located in the hollow space of the casting are removed from the cavity of the casting mold. The casting is then heat-treated at a temperature higher than the melting point of the liner but lower than the melting point of the casting, and the liner is liquefied. This achieves uninterrupted casting, greatly improving work efficiency and production costs. Furthermore, it allows for one-time casting of castings with hollow spaces, significantly increasing the hardness of the product. It is widely applicable to precision, high-precision, and high-hardness special fields. Attached Figure Description

[0033] Figure 1 This is a top view of the multi-station uninterrupted casting device provided in Embodiment 1 of the present invention;

[0034] Figure 2 This is a three-dimensional view of the casting mold of the multi-station uninterrupted casting device provided in Embodiment 1 of the present invention;

[0035] Figure 3 This is a three-dimensional drawing of the castings from the multi-station uninterrupted casting device provided in Embodiment 1 of the present invention;

[0036] Figure 4 This is a three-dimensional diagram of the mold-locking mechanism of the multi-station uninterrupted casting device provided in Embodiment 1 of the present invention in a non-centered state;

[0037] Figure 5 This is a three-dimensional view of the mold-locking mechanism of the multi-station uninterrupted casting device provided in Embodiment 1 of the present invention in a centered state;

[0038] Figure 6 This is a process flow chart of the multi-station uninterrupted casting process provided in Embodiment 3 of the present invention. Detailed Implementation

[0039] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the invention.

[0040] The specific implementation of the present invention will be described in detail below with reference to specific embodiments:

[0041] Example 1:

[0042] Figures 1 to 5 The structure of the multi-station uninterrupted casting device provided in Embodiment 1 of the present invention is shown. For ease of explanation, only the parts related to the embodiments of the present invention are shown, including:

[0043] It includes a sliding frame 100 and a mold-locking mechanism 200 that slides back and forth on the sliding frame 100; both the left and right ends of the sliding frame 100 are provided with fixed molds 110, and both the left and right ends of the mold-locking mechanism 200 are provided with movable molds 210. The movable molds 210 and the fixed molds 110 cooperate to form a casting mold 300; wherein the sliding frame 100 can be arranged horizontally or vertically.

[0044] The locking mechanism 200 is located between the fixed mold 110 at the left end and the fixed mold 110 at the right end of the sliding frame 100. When the locking mechanism 200 slides back and forth on the sliding frame 100, when the moving mold 210 at the right end of the locking mechanism 200 is close to the fixed mold 110 at the right end of the sliding frame 100, the moving mold 210 at the left end of the locking mechanism 200 moves away from the fixed mold 110 at the left end of the sliding frame 100, and vice versa.

[0045] In use, the mold-locking mechanism 200 is controlled to move to the far end of either side of the sliding frame 100, causing one set of casting molds 300 (either the first set of casting molds 301 or the second set of casting molds 302) to close while the other set of casting molds 300 opens. When the casting mold 300 opens, a liner 410 matching the hollow space 411 of the casting 400 is placed in the cavity of the casting mold 300 at a position corresponding to the hollow space 411 of the casting 400. Then, the casting mold 300 is controlled to close. Simultaneously, after the other set of casting molds 300 closes, liquid raw materials for casting the casting 400 are injected into the cavity of the casting mold 300. Casting 400; After the liquid raw material of casting 400 is injected and solidified, the mold is opened and the casting 400 and the liner 410 located in the hollow space 411 of casting 400 are removed from the cavity of casting mold 300. The casting 400 is heat-treated at a temperature higher than the melting point of liner 410 and lower than the melting point of casting 400, and the liner 410 is liquefied. This achieves uninterrupted casting, greatly improving work efficiency and production costs. In addition, the casting 400 with hollow space 411 is formed in one casting, which greatly improves the hardness of the product and is widely applicable to special fields such as precision, high precision, and high hardness.

[0046] like Figure 1 and Figure 2 as well as Figure 4 and Figure 5 As shown, the moving mold 210 has a first groove 211 on one side near the fixed mold 110, and the fixed mold 110 has a second groove (not shown in the figure) on one side near the moving mold 210.

[0047] The groove surface of the first groove 211 is similar to the shape of the left end of the casting 400 (not shown in the figure), and the groove surface of the second groove is similar to the shape of the right end of the casting 400 (not shown in the figure).

[0048] The first groove 211 and the second groove cooperate to form the cavity of the casting mold 300. The cavity of the casting mold 300 shapes the surface contour of the casting 400. The structure is simple, the cost is low, and it is easy to remove the casting 400.

[0049] like Figure 2 and Figure 3 As shown, the hollow space 411 of the casting 400 is formed by the liner 410. The bottom of the second groove is provided with a positioning post 112 for positioning the liner 410. The liner 410 is inserted into the positioning post 112, and the position of the liner 410 corresponds to the hollow space 411 of the casting 400.

[0050] The first groove 211, the second groove, and the liner 410 work together to form the casting 400. After the casting 400 is completed, the casting 400 is heat-treated at a temperature higher than the melting point of the liner 410 but lower than the melting point of the casting 400, so that the liner 410 is liquefied. This achieves one-time casting and demolding of the hollow casting 400, which greatly improves production efficiency and the hardness, elongation, tensile strength, and yield strength of the hollow part, while minimizing the weight of the hollow part. It is widely applicable to precision, high-precision, high-hardness and other special devices and military equipment.

[0051] like Figure 1 and Figure 2 as well as Figure 4 and Figure 5 As shown, the casting mold 300 formed by the fixed mold 110 at the right end of the sliding frame 100 and the movable mold 210 at the right end of the locking mechanism 200 is the first casting mold 301. The casting mold 300 formed by the fixed mold 110 at the left end of the sliding frame 100 and the movable mold 210 at the left end of the locking mechanism 200 is the second casting mold 302. When the first casting mold 301 is closed, the second casting mold 302 is opened, thereby improving work efficiency and reducing production costs.

[0052] like Figure 1 and Figure 2 as well as Figure 4 and Figure 5 As shown, the molding die 110 is provided with a first injection hole 113. One end of the first injection hole 113 is connected to the second groove and the other end is used to inject liquid raw material of the casting part 400. The liquid raw material of the casting part 400 is injected into the cavity of the casting mold 300 from the first injection hole 113. The structure is simple and meets the usage requirements of injecting liquid raw material of the casting part 400.

[0053] like Figure 1 and Figure 2 as well as Figure 4 and Figure 5 As shown, the first injection hole 113 is horizontally disposed on the shaping mold 110; a pressure injection device 500 is provided on the side of the shaping mold 110 away from the moving mold 210. The pressure injection device 500 includes an injection nozzle 510, the output end of which is located inside the first injection hole 113 and is connected to the cavity of the casting mold 300; wherein, the injection nozzle 510 cooperates with the first injection hole 113.

[0054] The pressure injection device 500 pressurizes the liquid raw material of the casting part 400 into the cavity of the casting mold 300 through the injection nozzle 510; this facilitates the injection of the liquid raw material of the casting part 400 into the cavity of the casting mold 300.

[0055] like Figure 1 and Figure 2 as well as Figure 4 and Figure 5 As shown, when the liquid raw material of the casting part 400 is injected into the cavity of the casting mold 300, the output end of the injection nozzle 510 extends into the first injection hole 113, and vice versa; this avoids the liquid raw material of the casting part 400 remaining in the first injection hole 113 on the molding mold 110, which would prevent the casting part from being demolded smoothly after casting.

[0056] like Figure 1 and Figure 2 as well as Figure 4 and Figure 5 As shown, the casting mold 300 also includes multiple static fixed molds 310 and multiple dynamic fixed molds 320. The static fixed molds 310 are fixedly connected to the sliding frame 100, and the dynamic fixed molds 320 are fixedly connected to the mold locking mechanism 200.

[0057] The static fixed mold 310 is located on the side of the fixed mold 110 away from the moving mold 210 and is fixedly connected to the fixed mold 110. The moving fixed mold 320 is located on the side of the moving mold 210 away from the fixed mold 110 and is fixedly connected to the moving mold 210. This is to protect the fixed mold 110 and the moving mold 210, prevent them from being deformed during the die casting process, thus affecting the casting accuracy and extending the service life of the fixed mold 110 and the moving mold 210.

[0058] The static fixed mold 310 is provided with a second injection hole 311 that is directly opposite the first injection hole 113. The injection nozzle 510 passes through the second injection hole 311 and slides back and forth in the second injection hole 311. This satisfies the requirement that when liquid raw material of casting 400 is injected into the cavity of casting mold 300, the output end of the injection nozzle 510 extends into the first injection hole 113, and vice versa. The injection nozzle 510 cooperates with the second injection hole 311.

[0059] like Figure 1 and Figure 2 as well as Figure 4 and Figure 5 As shown, the pressure injection device 500 is located on the side of the static mold 310 away from the mold 110 and also includes: an injection device 520 and an injection cylinder 530. The input end of the injection nozzle 510 is connected to the injection cylinder 530. The injection device 520 presses the liquid raw material of the casting part 400 in the injection cylinder 530 into the cavity of the casting mold 300 through the injection nozzle 510. The structure is simple and the cost is low. It is easy to inject the liquid raw material of the casting part 400 into the cavity of the casting mold 300.

[0060] like Figure 1 and Figure 2 as well as Figure 4 and Figure 5 As shown, the sliding frame 100 is composed of at least two static fixed molds 310 and a plurality of sliding rods 312 disposed between the two static fixed molds 310 or at least two shaping molds 110. The sliding rods 312 are perpendicular to the static fixed molds 310 and their ends are fixedly connected to the static fixed molds 310. The mold locking mechanism 200 slides back and forth on the sliding rods 312.

[0061] The mold-locking mechanism 200 consists of multiple mold-locking cylinders 220 and at least two movable fixed molds 320 or at least two movable molds 210. The slide rod of the mold-locking cylinder 220 is the aforementioned slide rod 312, and the cylinder body 221 of the mold-locking cylinder 220 is sleeved on the slide rod 312. The left and right ends of the cylinder body 221 of the mold-locking cylinder 220 are fixedly connected to the movable fixed molds 320. The stationary fixed molds 310 at both ends of the slide rod 312 limit the stroke of the mold-locking mechanism 200. The structure is simple, the cost is low, the utilization rate is high, and uninterrupted casting operations are realized.

[0062] Example 2:

[0063] The implementation flow of the multi-station uninterrupted casting method provided in Embodiment 2 of the present invention is shown only for the purposes of explanation, and is detailed below:

[0064] In step one, the mold-locking mechanism is mounted on the sliding frame and slides back and forth on the sliding frame;

[0065] In step two, a casting mold is set at each of the left and right ends of the mold-locking mechanism;

[0066] In the embodiments of the present invention, see Embodiment 1, such as Figure 1 and Figure 2 as well as Figure 4 and Figure 5As shown, the casting mold 300 is composed of a movable mold 210 and a fixed mold 110. The left and right ends of the sliding frame 100 are provided with fixed molds 110, and the left and right ends of the locking mechanism 200 are provided with movable molds 210. Thus, when the locking mechanism is at the very end of either end of the sliding frame, one set of casting molds is closed and the other set of casting molds is opened.

[0067] In step three, when the mold locking mechanism is at the very end of either end of the sliding frame, one set of the casting molds closes and the other set of the casting molds opens.

[0068] In embodiments of the present invention, casting of castings can be carried out simultaneously at two workstations, which greatly improves production efficiency and saves costs.

[0069] Example 3:

[0070] Figure 6 The process flow of the multi-station uninterrupted casting process provided in Embodiment 3 of the present invention is shown. For ease of explanation, only the parts related to the embodiments of the present invention are shown, and are described in detail below:

[0071] In step S201, the mold-locking mechanism is set on the sliding frame, and the mold-locking mechanism is controlled to slide back and forth on the sliding frame;

[0072] In step S202, a casting mold is set at each of the left and right ends of the mold locking mechanism;

[0073] In the embodiments of the present invention, see Embodiment 1, such as Figure 1 and Figure 2 as well as Figure 4 and Figure 5 As shown, the casting mold 300 is composed of a movable mold 210 and a fixed mold 110. The left and right ends of the sliding frame 100 are provided with fixed molds 110, and the left and right ends of the locking mechanism 200 are provided with movable molds 210. Thus, when the locking mechanism is at the very end of either end of the sliding frame, one set of casting molds is closed and the other set of casting molds is opened.

[0074] In step S203, when the mold locking mechanism is at the very end of either end of the sliding frame, one set of casting molds closes and the other set of casting molds opens.

[0075] In embodiments of the present invention, casting of castings can be carried out simultaneously at two workstations, which greatly improves production efficiency and saves costs.

[0076] In step S204, when the casting mold is opened, a liner that matches the hollow space of the casting is placed in the cavity of the casting mold at a position corresponding to the hollow space of the casting, and then the casting mold is closed.

[0077] In step S205, after the casting mold is closed, liquid raw material for casting is injected into the cavity of the casting mold to cast the casting part.

[0078] In the embodiments of the present invention, the operations of steps S204 and S205 each correspond to a state. Since one set of casting molds is closed and the other set of casting molds is open, the operations of steps S204 and S205 can be executed at corresponding workstations when any set of casting molds is open or closed, thereby realizing uninterrupted casting at dual workstations and greatly improving production efficiency.

[0079] In step S206, after the liquid raw material of the casting is injected and solidified, the mold is opened and the casting and the liner located in the hollow space of the casting are taken out from the cavity of the casting mold.

[0080] In step S207, the casting is heat-treated at a temperature higher than the melting point of the liner but lower than the melting point of the casting, and the liner is liquefied.

[0081] In step S208, the liquefied liner is removed from the hollow space of the casting.

[0082] The contents already described herein in this specification and accompanying drawings include examples of multi-station uninterrupted casting apparatus, methods, and processes. Of course, it is not possible to describe every conceivable combination of elements and / or methods for the purpose of describing the various features of this disclosure, but it will be appreciated that many other combinations and substitutions of the disclosed features are possible. Therefore, it will be apparent that various modifications can be made to this disclosure without departing from the scope or spirit of this disclosure. Furthermore, or in alternatives, other embodiments of this disclosure may become apparent from consideration of this specification and accompanying drawings and from practice of this disclosure as presented herein. It is intended that the examples presented in this specification and accompanying drawings be considered illustrative rather than limiting in all respects. Although specific terminology is used herein, it is used in a general and descriptive sense and is not intended for limiting purposes.

Claims

1. A multi-station uninterrupted casting device, comprising a sliding frame and a mold locking mechanism that slides back and forth on the sliding frame; Its features are, The sliding frame is provided with a fixed mold at both the left and right ends, and the locking mechanism is provided with a movable mold at both the left and right ends. The movable mold and the fixed mold cooperate to form a casting mold. The locking mechanism is located between the fixed mold at the left end and the fixed mold at the right end of the sliding frame. When the locking mechanism slides back and forth on the sliding frame, when the moving mold at the right end of the locking mechanism is close to the fixed mold at the right end of the sliding frame, the moving mold at the left end of the locking mechanism moves away from the fixed mold at the left end of the sliding frame, and vice versa. The moving mold has a first groove on one side near the fixed mold, and the fixed mold has a second groove on one side near the moving mold; the groove surface of the first groove is similar to the left end of the casting, and the groove surface of the second groove is similar to the right end of the casting; the first groove and the second groove cooperate to form the cavity of the casting mold, and the cavity of the casting mold shapes the surface contour of the casting; The casting mold formed by the fixed mold at the right end of the sliding frame and the movable mold at the right end of the locking mechanism is the first set of casting molds; the casting mold formed by the fixed mold at the left end of the sliding frame and the movable mold at the left end of the locking mechanism is the second set of casting molds; when the first set of casting molds is closed, the second set of casting molds is opened. The molding die is provided with a first injection hole, one end of which is connected to the second groove and the other end is used to inject the liquid raw material of the casting. The liquid raw material of the casting is injected into the cavity of the casting mold from the first injection hole. The first injection hole is horizontally disposed on the mold; a pressure injection device is provided on the side of the mold opposite to the moving mold, the pressure injection device includes an injection nozzle, the output end of the injection nozzle is located in the first injection hole, and the output end of the injection nozzle is connected to the cavity of the casting mold; the pressure injection device presses the liquid raw material of the casting into the cavity of the casting mold through the injection nozzle. When the liquid raw material of the casting is injected into the cavity of the casting mold, the output end of the injection nozzle extends into the first injection hole, and vice versa. The casting mold also includes multiple static fixed molds and multiple dynamic fixed molds. The static fixed molds are fixedly connected to the sliding frame, and the dynamic fixed molds are fixedly connected to the mold locking mechanism. The static fixed mold is located on the side of the fixed mold away from the moving mold and is fixedly connected to the fixed mold; the moving fixed mold is located on the side of the moving mold away from the fixed mold and is fixedly connected to the moving mold. The static fixed mold is provided with a second injection hole that is directly opposite the first injection hole in the horizontal direction. The injection nozzle passes through the second injection hole and slides back and forth in the second injection hole. The pressure injection device is located on the side of the static mold away from the mold and further includes: an injection device and an injection cylinder, wherein the input end of the injection nozzle is connected to the injection cylinder; the injection device presses the liquid raw material of the casting in the injection cylinder into the cavity of the casting mold through the injection nozzle.

2. A multi-station uninterrupted casting method based on the multi-station uninterrupted casting device of claim 1, characterized in that, The method includes: setting a mold-locking mechanism on a sliding frame and sliding it back and forth on the sliding frame; setting a set of casting molds at each of the left and right ends of the mold-locking mechanism; when the mold-locking mechanism is at the very end of either end of the sliding frame, one set of casting molds closes and the other set of casting molds opens.

3. A multi-station uninterrupted casting process based on the multi-station uninterrupted casting device of claim 1, characterized in that, The process includes: setting a mold-locking mechanism on a sliding frame and controlling the mold-locking mechanism to slide back and forth on the sliding frame; setting a set of casting molds at each of the left and right ends of the mold-locking mechanism; when the mold-locking mechanism is at the very end of either end of the sliding frame, one set of casting molds closes and the other set of casting molds opens; when the casting molds open, placing a liner matching the hollow space of the casting part in the cavity of the casting mold at a position corresponding to the hollow space of the casting part, and then controlling the casting molds to close; after the casting molds close, injecting the liquid raw material of the casting part into the cavity of the casting mold to cast the casting part; after the liquid raw material of the casting part is injected and solidified, opening the mold, removing the casting part from the cavity of the casting mold and the liner located in the hollow space of the casting part; heat-treating the casting part at a temperature higher than the melting point of the liner but lower than the melting point of the casting part, and liquefying the liner; removing the liquefied liner from the hollow space of the casting part.

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