Multi-station metal injection molding device

Abstract

The utility model discloses a multi-station metal injection molding device. Comprising two injection assemblies and two feeding assemblies which are arranged side by side, a supporting frame arranged below the injection assemblies and the feeding assemblies, and an adjusting assembly arranged on the supporting frame. Material liquid is stored in the feeding assemblies, the injection assembly is matched with the feeding assemblies and used for injecting the material liquid in the feeding assemblies into a mold, and the adjusting assembly is used for adjusting the positions of the two feeding assemblies on the supporting frame. On the premise that a large mold is used, the magnesium alloy injection molding precision is improved, magnesium alloy casting of the large mold is carried out by arranging the injection assembly and the feeding assembly which are parallel to each other on the supporting frame, and the position of the feeding assembly on the supporting frame is adjusted by arranging the adjusting assembly, so that the magnesium alloy injection molding precision is improved. And therefore, the application range of the metal injection molding device is expanded.

Description

Technical Field

[0001] The utility model belongs to the technical field of metal injection molding, and in particular relates to a multi-station metal injection molding device. Background Art

[0002] The specific gravity of magnesium is about 2 / 3 of aluminum and 1 / 4 of iron. It is the lightest metal among practical metals, with high strength and high rigidity. Due to its low density, magnesium alloy has the greatest advantage in lightweight. The above characteristics of magnesium alloy make magnesium alloy have good application prospects. For example, lightweight parts in automobiles.

[0003] At present, magnesium alloy products are mainly produced by injection molding machines in combination with molds. An important way to mold magnesium alloys is semi-solid injection molding of magnesium alloys. Compared with molding methods such as cold chamber die-casting machines for molding magnesium alloys, semi-solid injection molding of magnesium alloys has incomparable advantages over other casting methods, such as energy saving (low melting temperature of magnesium alloys: general magnesium alloy casting requires heating the magnesium alloy to 650-680°C, while injection molding magnesium alloys only need to be heated to 580-600°C), environmental protection (no need for protective gas: general magnesium alloy casting requires the use of environmentally harmful protective gases such as SF6 to prevent oxidation and combustion of magnesium alloys after melting the magnesium alloy, while the melted magnesium alloys in injection molding do not come into contact with air), and safety (general magnesium alloy casting uses protective gas after melting the magnesium alloy, but there is still a risk of spontaneous combustion and explosion. The melted magnesium alloys in injection molding are in a closed container that does not come into contact with air, thus avoiding the risk of spontaneous combustion and explosion).

[0004] In the prior art, the piston rod in the injection cylinder is often connected to the feed screw via a driving component, or connected to the feed screw via other connecting structures. The method of magnesium alloy injection molding is to feed the magnesium alloy into a material pipe, heat it to a molten state, and then continuously feed the material through the rotation of the screw, and then inject it into the mold at a high speed. However, in the production process of large-scale molded products, a larger mold is required. At this time, the molding equipment needs to be expanded to store more magnesium alloy raw materials. However, expanding the molding equipment will increase the load of the motor, thereby reducing the stability of the speed of magnesium alloy injection, and thus reducing the production accuracy of magnesium alloy. Utility Model Content

[0005] The utility model aims to provide a multi-station metal injection molding device, which solves the problem of improving the precision of magnesium alloy injection molding under the premise of using large molds, and performs magnesium alloy casting of large molds by arranging two injection assemblies and feeding assemblies parallel to each other on a support frame, and arranges an adjustment assembly to adjust the position of the feeding assembly on the support frame to adapt to the production and processing of molds of different specifications, and expands the application scope of the metal injection molding device without reducing the production precision of the magnesium alloy.

[0006] The utility model adopts a technical solution to solve its technical problem, which is to propose a multi-station metal injection molding device, including two injection assemblies and two feeding assemblies arranged side by side, a support frame arranged below the injection assemblies and the feeding assemblies, and an adjustment assembly arranged on the support frame; the feeding assemblies store liquid material, the injection assemblies cooperate with the feeding assemblies to inject the liquid material in the feeding assemblies into the mold, and the adjustment assembly is used to adjust the positions of the two feeding assemblies on the support frame.

[0007] In an embodiment of the present application, the injection assembly includes an injection cylinder and a piston rod arranged in the injection cylinder; the piston rod is provided with a piston integrally connected to the piston rod, and the piston separates the injection cylinder into a first chamber and a second chamber. The pressure in the first chamber and the second chamber is changed to inject the liquid in the feeding assembly into the mold.

[0008] In an embodiment of the present application, a first hole and a second hole are arranged on the surface of the injection cylinder, and the aperture of the first hole is larger than the aperture of the second hole.

[0009] In an embodiment of the present application, the feeding assembly includes a barrel with liquid material stored inside, and a feeding rod arranged in the barrel; the feeding rod is fixedly connected to the piston rod, and the piston rod drives the feeding rod to move in the barrel to inject the liquid material in the barrel into the mold.

[0010] In an embodiment of the present application, the feed rod is a screw rod, and the metal injection molding device also includes a drive motor, a transmission shaft and a transmission belt. The transmission shaft is connected to the piston rod, and the drive motor drives the transmission shaft to rotate to drive the feed rod to rotate.

[0011] In the embodiment of the present application, a sealing ring is arranged on the piston, pressure reducing rings are arranged on both sides of the sealing ring, and a wear-resistant ring is arranged on the side of the pressure reducing ring away from the sealing ring.

[0012] In an embodiment of the present application, the metal injection molding device also includes a travel seat, a travel rod, a magnetic scale and a reading head; a bearing is arranged between the travel seat and the piston rod, the travel rod is arranged on the travel seat, and a magnetic scale is installed at one end of the travel rod away from the travel seat, and the reading head is used to detect the position movement of the magnetic scale.

[0013] In an embodiment of the present application, a throttle valve and a pressure sensor are arranged in the first chamber and the second chamber; the pressure sensor is used to detect the pressure in the corresponding chamber, and the throttle valve is used to adjust the oil inlet flow rate in the corresponding chamber when oil is entering the first chamber or the second chamber.

[0014] In an embodiment of the present application, the adjustment assembly includes a first adjustment rod and a second adjustment rod arranged on both sides of the first adjustment rod; the first adjustment rod and the second adjustment rod are arranged on the first side of the support frame, and the first adjustment rod cooperates with the second adjustment rod to adjust the distance between the feeding assembly and the edge of the support frame.

[0015] In an embodiment of the present application, the adjustment assembly also includes a third adjustment rod, a fourth adjustment rod arranged on both sides of the third adjustment rod, and a fixed sleeve sleeved on the outer periphery of the third adjustment rod and the fourth adjustment rod; the fixed sleeve is arranged on the second side surface of the support frame, and the third adjustment rod cooperates with the fourth adjustment rod to adjust the distance between the two feeding assemblies.

[0016] The beneficial effects of the utility model are:

[0017] 1. The utility model proposes a multi-station metal injection molding device, which performs magnesium alloy casting of large molds by arranging two injection assemblies and feeding assemblies parallel to each other on a support frame, and the two feeding assemblies are connected to different injection holes on a large mold, and simultaneously inject liquid. Since the injection holes on molds of different specifications have different positions, the position of the feeding assembly on the support frame is adjusted by arranging an adjustment assembly to adapt to the production and processing of molds of different specifications, thereby expanding the application scope of the metal injection molding device without reducing the production accuracy of magnesium alloys;

[0018] 2. The utility model proposes a multi-station metal injection molding device. In the prior art, the piston rod in the injection cylinder is often connected to the feed screw via a driving component or other connecting structures. Therefore, the total length of the piston rod and the feed screw is often long, which will cause insufficient strength. During high-speed injection in actual production, there will be deformation problems, resulting in reduced injection precision. After adopting the connection and driving mode of "direct connection between the piston rod and the feed rod, and connection of the drive motor to the end side of the piston rod to provide motion power", the length between the piston rod and the feed rod can be reduced, the strength can be improved, and the stability of the mechanism can be improved, thereby improving the injection precision;

[0019] 3. The utility model proposes a multi-station metal injection molding device, which solves the problem of oil leakage by arranging pressure reducing rings on both sides of the sealing ring, and then arranging a wear-resistant ring on the side of the pressure reducing ring away from the sealing ring, so as to arrange "wear-resistant ring, pressure reducing ring, sealing ring, pressure reducing ring, wear-resistant ring" on the piston section of the integrated piston and piston rod to seal the oil inlet side and the oil outlet side of the injection cylinder, thereby improving the injection accuracy. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The accompanying drawings, which are incorporated into the specification and constitute a part of the specification, illustrate embodiments of the utility model and are used together with the description to explain the principles of the utility model. In these drawings, similar reference numerals are used to represent similar elements. The drawings described below are some embodiments of the utility model, rather than all embodiments. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without paying creative work.

[0021] Figure 1 It is a schematic diagram of a multi-station metal injection molding device according to an embodiment of the utility model;

[0022] Figure 2 It is a cross-sectional view of a multi-station metal injection molding device according to an embodiment of the utility model;

[0023] Figure 3 It is a schematic diagram of a travel rod of a multi-station metal injection molding device according to an embodiment of the utility model;

[0024] Figure 4 A cross-sectional view of an injection cylinder of a multi-station metal injection molding device according to an embodiment of the utility model;

[0025] Figure 5 It is an enlarged view of a piston of a multi-station metal injection molding device according to an embodiment of the utility model;

[0026] Figure 6 It is a schematic diagram of an adjustment component of a multi-station metal injection molding device according to an embodiment of the utility model;

[0027] Figure 7 This is a schematic diagram of the installation of a first adjustment rod of a multi-station metal injection molding device according to an embodiment of the utility model;

[0028] Figure 8 This is a schematic diagram of the installation of a third adjustment rod of a multi-station metal injection molding device according to an embodiment of the utility model.

[0029] In the figure: 1. injection assembly; 11. injection cylinder; 111. first hole; 112. second hole; 12. piston rod; 13. piston; 14. first chamber; 15. second chamber; 16. sealing ring; 17. pressure relief ring; 18. wear-resistant ring; 2. feeding assembly; 21. barrel; 22. feeding rod; 23. driving motor; 3. support frame; 4. adjustment assembly; 41. first adjustment rod; 42. second adjustment rod; 43. third adjustment rod; 44. fourth adjustment rod; 45. fixing sleeve; 5. travel seat; 6. travel rod; 7. magnetic scale; 8. reading head. DETAILED DESCRIPTION

[0030] In order to more clearly illustrate the embodiments of the utility model and the technical solutions in the prior art, the specific implementation methods of the utility model will be described below with reference to the accompanying drawings. Obviously, the accompanying drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings and other implementation methods can be obtained based on these drawings without creative work. In addition, the design orientation only represents the relative position relationship between the components, not the absolute position relationship.

[0031] The utility model embodiment provides a multi-station metal injection molding device, see Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 , Figure 8 , mainly includes an injection component 1, a feeding component 2, a support frame 3 and an adjustment component 4.

[0032] See also Figure 1-Figure 8 In an embodiment of the present application, a multi-station metal injection molding device includes an injection assembly 1, a feeding assembly 2, an adjustment assembly 4 and a support frame 3. The injection assembly 1 is fixedly connected to the feeding assembly 2 at one end, and the other end of the feeding assembly 2 can be connected to the mold. The injection assembly 1 and the feeding assembly 2 are two mutually parallel arranged on the support frame 3. The feeding assembly 2 stores liquid material. The injection assembly 1 can cooperate with the feeding assembly 2 to provide a driving force for the feeding assembly 2, and then inject the liquid material in the feeding assembly 2 into the mold. The adjustment frame is arranged on the side of the support frame 3, and the adjustment assembly 4 is used to adjust the position of the injection assembly 1 on the support frame 3. By arranging two mutually parallel injection assemblies 1 and feeding assemblies 2 on the support frame 3, the two feeding assemblies 2 are connected to different injection holes on the large mold, and the liquid material is injected simultaneously, so as to perform magnesium alloy casting of large molds. Since the injection holes on molds of different specifications have different positions, the position of the feeding assembly 2 on the support frame 3 is adjusted by arranging the adjustment assembly 4 to adapt to the production and processing of molds of different specifications, thereby expanding the application scope of the metal injection molding device without reducing the production accuracy of the magnesium alloy.

[0033] Furthermore, the support frame 3 includes a first support frame and a second support frame, and the first support frame and the second support frame are connected by an adjusting component 4. The first support frame and the second support frame are both composed of an upper support plate and a lower support plate. The upper support plate and the lower support plate are slidably connected, which can be specifically achieved through the cooperation of slide rails and slide grooves. The upper support plate is fixedly connected to the injection component 1 and the feeding component 2. A lifting cylinder and an adjusting component 4 are arranged on the lower support plate. The lifting cylinder can push the entire multi-station metal injection molding device up and down to adapt to production stations of different heights.

[0034] The multi-station metal injection molding device also includes a whole-shift rod and a whole-shift cylinder. A first groove is provided on the mold. One end of the whole-shift rod is embedded in the first groove and is rotatably connected to the inner wall of the first groove. One end of the whole-shift cylinder is sleeved on the outer periphery of the other end of the whole-shift rod. A second groove perpendicular to the first groove is arranged on the upper support plate. The other end of the whole-shift cylinder is embedded in the second groove and is rotatably connected to the inner wall of the second groove. The other end of the whole-shift rod can extend from the whole-shift cylinder or be retracted inside the whole-shift cylinder, so that the feeding component 2 and the mold can move relative to each other, which is convenient for adjusting the distance between the feeding component 2 and the mold and facilitating mold disassembly.

[0035] In one embodiment, the injection assembly 1 includes an injection cylinder 11 and a piston rod 12. The injection cylinder 11 is divided into a top cover, a cylinder body and a bottom cover. The top cover, the cylinder body and the bottom cover are connected to form a closed space. Connecting holes are arranged on the top cover and the bottom cover. The piston rod 12 is arranged inside the injection cylinder 11. Both ends of the piston rod 12 pass through the connecting holes and extend to the external space of the injection cylinder 11. A piston 13 integrally connected to the piston rod 12 is arranged on the piston rod 12. The piston 13 abuts against the inner surface of the cylinder body to divide the closed space inside the injection cylinder 11 into a first cavity 14 and a second cavity 15. A pressure difference can be created in the two cavities by injecting oil into one cavity and discharging oil in the other cavity, thereby pushing the piston 13 to move toward the side of the cavity with lower pressure. The piston 13 drives the piston rod 12 to move. During the movement, the piston rod 12 applies a force toward the feeding assembly 2, thereby injecting the material liquid in the feeding assembly 2 into the mold.

[0036] Furthermore, a first hole 111 and a second hole 112 are arranged on the cylinder body of the injection cylinder 11. The aperture of the first hole 111 is larger than that of the second hole 112. The first holes 111 are arranged in the first cavity 14 and the second cavity 15. The second holes 112 are also arranged in the first cavity 14 and the second cavity 15. The first hole 111 and the second hole 112 are arranged at one end of the cavity away from the piston 13. During the injection process, in the pre-injection stage and the middle stage, the oil is discharged through the first hole 111. In the final stage, the oil volume on the oil outlet side is small and the speed is fast. The speed buffering is performed through the second hole 112 to avoid mechanical collision caused by inertia.

[0037] In one embodiment, the feeding assembly 2 includes a barrel 21 and a feeding rod 22, one end of the feeding rod 22 is fixedly connected to one end of the piston rod 12, a cylindrical storage space is arranged inside the barrel 21, the molten liquid is stored inside the storage space, and a discharge port is arranged at the end of the barrel 21 away from the piston rod 12, and the discharge port is connected to the interior of the mold. The piston rod 12 moves toward the barrel 21 to drive the feeding rod 22 to move, and the feeding rod 22 moves to push the liquid in the barrel 21 into the mold.

[0038] Furthermore, the feed rod 22 is set as a screw, and the metal injection molding device also includes a drive motor 23, a transmission shaft and a transmission belt. The transmission shaft is fixedly connected to the other end of the piston rod 12, and the drive motor 23 drives the transmission shaft to rotate through the transmission belt. Since one end of the feed rod 22 is fixedly connected to one end of the piston rod 12, and the other end of the piston rod 12 is fixedly connected to the transmission shaft, the feed rod 22 can be driven to rotate, so that the liquid in the barrel 21 is stabilized in a molten state. In the prior art, the piston rod in the injection cylinder is often connected to the feeding screw via a driving component or other connecting structures. Therefore, the total length of the piston rod and the feeding screw is often relatively long, which will result in insufficient strength. During high-speed injection in actual production, deformation problems may occur, resulting in reduced injection accuracy. By adopting a connection and driving method such as "the piston rod 12 is directly connected to the feeding rod 22, and the driving motor 23 is connected to the end side of the piston rod 12 to provide motive power", the length between the piston rod 12 and the feeding rod 22 can be reduced while ensuring a large storage volume, thereby improving the strength and further improving the stability of the mechanism, thereby achieving improved injection accuracy.

[0039] From the above, it can be seen that the piston rod 12 needs to perform both axial movement and rotational movement. In order to avoid the problem of oil leakage caused by long-term friction, a sealing ring 16 is arranged on the piston 13. The inner surface of the sealing ring 16 abuts against the outer surface of the piston 13, and the outer surface of the sealing ring 16 abuts against the inner surface of the cylinder body. Pressure reducing rings 17 are arranged on both sides of the sealing ring 16, and a wear-resistant ring 18 is arranged on the side of the pressure reducing ring 17 away from the sealing ring 16.

[0040] In one possible implementation, the metal injection molding device also includes a stroke seat 5, a stroke rod 6, a magnetic scale 7 and a reading head 8. The stroke seat 5 is connected to the piston rod 12 through a bearing, the stroke rod 6 is fixed on the stroke seat 5, and a magnetic scale 7 is installed at one end of the stroke rod 6 away from the stroke seat 5. A reading head 8 is fixed around the magnetic scale 7. The reading head 8 is used to detect the position movement of the magnetic scale 7 to calculate the position and speed of the feeding rod 22, thereby realizing the calculation of the injection volume.

[0041] Furthermore, a throttle valve and a pressure sensor are arranged in the first cavity 14 and the second cavity 15. The throttle valve can adjust the oil intake of the corresponding cavity, and the pressure sensor is used to detect the pressure in the corresponding cavity. The reading head 8 converts the calculated injection volume and the moving speed of the feeding rod 22 into electrical signals and transmits them to the control unit. After receiving the injection volume and the moving speed of the feeding rod 22 transmitted by the reading head 8, the control unit transmits a control electrical signal to the throttle valve to control the valve opening of the throttle valve, thereby controlling the moving speed of the feeding rod 22. The pressure sensor is used to detect the pressure in each cavity, and converts the detected pressure into an electrical signal and transmits it to the control unit. The control unit further controls the moving speed of the feeding rod 22 according to the pressure transmitted by the pressure sensor.

[0042] In one possible implementation, see Figure 7 The adjustment component 4 includes a first adjustment rod 41 and a second adjustment rod 42. The second adjustment rod 42 is two rods arranged on both sides of the first adjustment rod 41. The first adjustment rod 41 and the second adjustment rod 42 are both arranged on the first side of the support frame 3. The middle of the first adjustment rod 41 is screwed to the support frame 3. One end of the first adjustment rod 41 abuts against the surface of the feeding component 2. The middle of the second adjustment rod 42 is screwed to the support frame 3. One end of the second adjustment rod 42 is rotatably connected to the surface of the feeding component 2. During the adjustment process, the second adjustment rod 42 can be rotated to push the surface of the feeding component 2 to adjust the position of the feeding component 2, and then the first adjustment rod 41 is rotated to make the end face of the first adjustment rod 41 abut against the surface of the feeding component 2, and then the second adjustment rod 42 is rotated to pull the feeding component 2 to offset the deflection of the feeding component 2 and the support frame 3 during the adjustment process.

[0043] It is understandable that multiple groups of first adjustment rods 41 and second adjustment rods 42 can be arranged along the first side to adjust the distance between the injection assembly 1, the feeding assembly 2 and the edge of the support frame 3.

[0044] The adjustment assembly 4 also includes a third adjustment rod 43 and a fourth adjustment rod 44, and a fixing sleeve 45 sleeved on the outer periphery of the third adjustment rod 43 and the fourth adjustment rod 44. The fourth adjustment rod 44 is arranged on both sides of the third adjustment rod 43. The third adjustment rod 43, the fourth adjustment rod 44 and the fixing sleeve 45 are all arranged on the second side surface of the support frame 3, and the second side surface is perpendicular to the first side surface. The fixing sleeve 45 is arranged on the lower support plate of the support frame 3, and the fixing sleeve 45 is fixedly connected to the lower support plate. Specifically, refer to Figure 8The fixing sleeve 45 adopts three kinds of fixing sleeves, namely a hollow sleeve, a threaded hole sleeve and a solid sleeve, all of which are fixed on the support frame 3. The third adjusting rod 43 and the fourth adjusting rod 44 can be threaded rods, and threads are arranged at the head and tail of the threaded rod. The relative positions of the two feeding components 2 are adjusted by pulling the threaded rod and the fixing sleeve, so as to meet the production and processing of molds of different specifications, thereby expanding the application scope of the metal injection molding device.

[0045] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the statement "comprise a ..." do not exclude the presence of other identical elements in the process, method, article or device comprising the elements.

[0046] The above contents are further detailed descriptions of the present invention in combination with specific preferred implementation methods, and the specific embodiments of the present invention cannot be considered to be limited to these descriptions. For ordinary technicians in the technical field to which the present invention belongs, several simple deductions or substitutions can be made without departing from the concept of the present invention, which should be regarded as falling within the protection scope of the present invention.

Claims

1. A multi-station metal injection molding device, characterized in that: The invention comprises two injection assemblies (1) and two feeding assemblies (2) arranged side by side, a support frame (3) arranged below the injection assemblies (1) and the feeding assemblies (2), and an adjustment assembly (4) arranged on the support frame (3); the feeding assemblies (2) store liquid material, the injection assemblies (1) cooperate with the feeding assemblies (2) to inject the liquid material in the feeding assemblies (2) into the mold, and the adjustment assembly (4) is used to adjust the positions of the two feeding assemblies (2) on the support frame (3).

2. A multi-station metal injection molding device according to claim 1, characterized in that: The injection assembly (1) comprises an injection cylinder (11) and a piston rod (12) disposed in the injection cylinder (11); the piston rod (12) is provided with a piston (13) integrally connected to the piston rod (12); the piston (13) separates the injection cylinder (11) into a first chamber (14) and a second chamber (15); the pressure in the first chamber (14) and the second chamber (15) is changed so as to inject liquid material into a mold.

3. A multi-station metal injection molding device according to claim 2, characterized in that: A first hole (111) and a second hole (112) are arranged on the surface of the injection cylinder (11), and the diameter of the first hole (111) is larger than the diameter of the second hole (112).

4. The multi-station metal injection molding device according to claim 2, characterized in that: The feeding assembly (2) comprises a barrel (21) storing liquid material therein, and a feeding rod (22) disposed in the barrel (21); the feeding rod (22) is fixedly connected to the piston rod (12), and the piston rod (12) drives the feeding rod (22) to move in the barrel (21) so as to inject the liquid material in the barrel (21) into the mold.

5. The multi-station metal injection molding device according to claim 4, characterized in that: The feed rod (22) is a screw rod, and the metal injection molding device further comprises a drive motor (23), a transmission shaft, and a transmission belt, wherein the transmission shaft is connected to the piston rod (12), and the drive motor (23) drives the transmission shaft to rotate, thereby driving the feed rod (22) to rotate.

6. The multi-station metal injection molding device according to claim 5, characterized in that: A sealing ring (16) is arranged on the piston (13), pressure relief rings (17) are arranged on both sides of the sealing ring (16), and a wear-resistant ring (18) is arranged on the side of the pressure relief ring (17) away from the sealing ring (16).

7. The multi-station metal injection molding device according to claim 2, characterized in that: The metal injection molding device further comprises a travel seat (5), a travel rod (6), a magnetic scale (7) and a reading head (8); a bearing is arranged between the travel seat (5) and the piston rod (12); the travel rod (6) is arranged on the travel seat (5); a magnetic scale (7) is installed at one end of the travel rod (6) away from the travel seat (5); and the reading head (8) is used to detect the position movement of the magnetic scale (7).

8. The multi-station metal injection molding device according to claim 7, characterized in that: A throttle valve and a pressure sensor are arranged in each of the first chamber (14) and the second chamber (15); the pressure sensor is used to detect the pressure in the corresponding chamber, and the throttle valve is used to adjust the oil inlet flow rate in the corresponding chamber when oil is introduced into the first chamber (14) or the second chamber (15).

9. The multi-station metal injection molding device according to claim 1, characterized in that: The adjustment assembly (4) comprises a first adjustment rod (41) and second adjustment rods (42) arranged on both sides of the first adjustment rod (41); the first adjustment rod (41) and the second adjustment rod (42) are arranged on a first side surface of the support frame (3), and the first adjustment rod (41) cooperates with the second adjustment rod (42) to adjust the distance between the feeding assembly (2) and the edge of the support frame (3).

10. The multi-station metal injection molding device according to claim 9, characterized in that: The adjustment assembly (4) further comprises a third adjustment rod (43), fourth adjustment rods (44) arranged on both sides of the third adjustment rod (43), and a fixing sleeve (45) sleeved on the outer periphery of the third adjustment rod (43) and the fourth adjustment rod (44); the fixing sleeve (45) is arranged on the second side surface of the support frame (3), and the third adjustment rod (43) cooperates with the fourth adjustment rod (44) to adjust the distance between the two feeding assemblies (2).

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