Injection molding machine and pushing assembly and pushing rod thereof

Abstract

The utility model discloses an injection molding machine and a pushing assembly and a pushing rod thereof. The ejection rod of the injection molding machine comprises a fixed section and a clutch section, wherein the clutch section is detachably connected with the fixed section. The push rod has the advantages of being convenient to replace, short in replacement time, long in service life and the like.

Description

Technical Field

[0001] This utility model relates to the field of injection molding, specifically to an injection molding machine and its push assembly and push rod. Background Technology

[0002] One end of the ejector pin of an injection molding machine is connected to the ejector plate, and the other end mates with a hole in the moving mold. When the injection molding machine needs to change molds, the position of the ejector pin needs to be changed to mate with the hole in the new mold, since the positions of the holes in the moving molds are different. Changing the position of the ejector pin not only takes a long time, but frequent changes can also damage the connection structure between the ejector pin and the ejector plate. Utility Model Content

[0003] This invention aims to at least partially solve one of the technical problems in related technologies. To this end, this invention proposes an injection molding machine and its push-pull assembly and push-pull rod.

[0004] The push rod of the injection molding machine of this utility model includes a fixed section and a clutch section, wherein the clutch section is detachably connected to the fixed section.

[0005] The push rod of this utility model has the advantages of being easy to replace, having a short replacement time, and having a long service life.

[0006] Optionally, the fixing segment has a first end and a second end opposite to each other in its length direction, the first end being provided with a mounting hole, and the clutch segment has a third end and a fourth end opposite to each other in its length direction, the third end being detachably fitted into the mounting hole.

[0007] Optionally, the third end of the clutch segment is provided with a mounting member that can extend and retract in the radial direction of the third end, the mounting member being configured to protrude outward relative to the clutch segment in the radial direction of the third end in the extended state; or the wall of the mounting hole is provided with a mounting member that can extend and retract in the radial direction of the mounting hole, the mounting member being configured to protrude inward relative to the wall of the mounting hole in the radial direction of the mounting hole in the extended state.

[0008] Optionally, the mounting member includes an elastic element connected to the third end and a positioning element connected to the elastic element, the positioning element extending outward relative to the third end in the radial direction of the third end under the action of the elastic force of the elastic element; or the mounting member includes an elastic element connected to the first end and a positioning element connected to the elastic element, the positioning element extending inward relative to the wall surface of the mounting hole in the radial direction of the mounting hole under the action of the elastic force of the elastic element.

[0009] Optionally, the wall of the mounting hole is provided with a mounting groove, and the positioning member of the mounting member in the extended state cooperates with the mounting groove; or the peripheral surface of the third end is provided with a mounting groove, and the positioning member of the mounting member in the extended state cooperates with the mounting groove.

[0010] Optionally, the mounting groove extends circumferentially along the mounting hole; or the mounting groove extends circumferentially along the third end.

[0011] Optionally, the push rod of the injection molding machine further includes a first magnetic element, which is disposed in one of the fixed section and the clutch section, and cooperates with the other of the fixed section and the clutch section to attract the other of the fixed section and the clutch section.

[0012] Optionally, the fixing segment has a first end and a second end opposite to each other in its length direction, the end face and / or circumferential surface of the first end is provided with a first mounting groove, and the first magnetic element is disposed in the first mounting groove; or the clutch segment has a third end and a fourth end opposite to each other in its length direction, the end face and / or circumferential surface of the third end is provided with a first mounting groove, and the first magnetic element is disposed in the first mounting groove.

[0013] Optionally, the push rod of the injection molding machine further includes a gripping part, which is movably disposed on the clutch section between a gripping position and a retracted position, wherein in the gripping position, at least a portion of the gripping part is located on the outer side of the circumferential surface of the clutch section, and in the retracted position, the gripping part is located on the inner side of the circumferential surface of the clutch section.

[0014] The push assembly of this utility model includes: a push plate; a plurality of fixed sections, each of the fixed sections being disposed on the push plate; and a clutch section, the clutch section being detachably connected to a portion of the plurality of fixed sections to form the push rod of the injection molding machine of this utility model.

[0015] The jacking assembly of this utility model has the advantages of easy replacement of the jacking rod, short replacement time of the jacking rod, and long service life.

[0016] The injection molding machine of this utility model includes: a push assembly, which is the push assembly described in this utility model; and a moving template, which has a through hole, through which the push rod of the push assembly passes.

[0017] The injection molding machine of this invention has the advantages of easy replacement of the push rod, short push rod replacement time, long service life, and high injection efficiency. Attached Figure Description

[0018] Figure 1 This is an exploded view of the push rod according to the first embodiment of the present invention;

[0019] Figure 2 This is a schematic diagram of the push rod according to the first embodiment of the present utility model;

[0020] Figure 3 This is an exploded view of the push rod according to the second embodiment of the present invention;

[0021] Figure 4 This is a schematic diagram of the push rod according to the second embodiment of the present invention;

[0022] Figure 5a This is a partial structural schematic diagram of the push rod according to the third embodiment of the present utility model;

[0023] Figure 5b This is a partial structural schematic diagram of the push rod according to the third embodiment of the present utility model;

[0024] Figure 6a This is a partial structural schematic diagram of the push rod according to the fourth embodiment of the present utility model;

[0025] Figure 6b This is a partial structural schematic diagram of the push rod according to the fourth embodiment of the present utility model;

[0026] Figure 7 This is a partial exploded view of an injection molding machine according to an embodiment of the present utility model. Detailed Implementation

[0027] The embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, and should not be construed as limiting the present invention.

[0028] The following description, with reference to the accompanying drawings, describes an injection molding machine 1000 and its push rod 100 according to an embodiment of the present invention. Figures 1-7 As shown, the push rod 100 of the injection molding machine 1000 according to the embodiment of the present utility model includes a fixed section 1 and a clutch section 2, wherein the clutch section 2 is detachably connected to the fixed section 1.

[0029] An injection molding machine 1000 according to an embodiment of the present invention includes a push assembly and a moving platen 300. The push assembly includes a push plate 200, a clutch section 2, and a plurality of fixed sections 1. Each fixed section 1 is disposed on the push plate 200, and the clutch section 2 is detachably connected to a portion of the plurality of fixed sections 1 to form a push rod 100. The moving platen 300 has a through hole 310 through which the push rod 100 passes.

[0030] In other words, the clutch section 2 can be switched to be connected to different fixed sections 1 to form push rods 100 in different positions. In other words, the position of the push rod 100 can be changed by connecting the clutch section 2 to different fixed sections 1 so that the push assembly and the push rod 100 can be fitted with holes in different molds.

[0031] Therefore, when the injection molding machine 1000 changes the mold, it is not necessary to remove the ejector rod 100 from the ejector plate 200. This not only makes it convenient and quick to replace the ejector rod 100 and greatly shortens the replacement time (from about 20 minutes to about 20 seconds), but also avoids damage to the connection structure between the ejector rod 100 and the ejector plate 200, so as to extend the service life of the ejector rod 100 and the ejector assembly.

[0032] Therefore, the push rod 100 and the push assembly according to the present invention have advantages such as easy replacement, short replacement time, and long service life. Accordingly, the injection molding machine 1000 according to the present invention has advantages such as easy replacement of the push rod 100, short replacement time of the push rod 100, long service life, and high injection efficiency.

[0033] like Figures 1-7 As shown, the injection molding machine 1000 according to an embodiment of the present invention includes the pusher assembly, a moving platen 300, a moving mold 400, a fixed mold (not shown), and a fixed platen (not shown). The pusher assembly includes a pusher plate 200, a clutch section 2, and multiple fixed sections 1. Optionally, the pusher plate 200, the moving platen 300, the moving mold 400, the fixed mold, and the fixed platen are arranged along a first direction. The first direction is as follows: Figure 2 , Figure 4 and Figure 7 As shown by arrow A in the diagram.

[0034] Each fixed segment 1 is detachably disposed on the push plate 200. A disengaged segment 2 is detachably connected to a portion of the multiple fixed segments 1 to form a push rod 100. The moving mold plate 300 has a through hole 310, which extends through the moving mold plate 300 along a first direction (the thickness direction of the moving mold plate 300). The push rod 100 passes through the through hole 310 to engage with a hole 410 in the moving mold 400. Specifically, the fourth end 22 of the disengaged segment 2 engages within the hole 410 of the moving mold 400.

[0035] Specifically, the number of through holes 310 is equal to the number of fixed sections 1, and the multiple through holes 310 are one-to-one opposite to the multiple fixed sections 1 in the first direction, so that the push rods 100 at different positions can pass through the through holes 310. There are multiple clutch sections 2, and the number of clutch sections 2 is less than the number of fixed sections 1. For example, the injection molding machine 1000 and the push assembly include 4 clutch sections 2 and 8 to 12 fixed sections 1.

[0036] like Figures 1-4 As shown, the fixed section 1 has a first end 11 and a second end 12 opposite to each other in its length direction, and the length direction of the fixed section 1 is consistent with the first direction. The second end 12 of the fixed section 1 is connected to the push plate 200, and the first end 11 of the fixed section 1 is located in the through hole 310. This not only makes it easier for the clutch section 2 to be connected to the first end 11 of the fixed section 1, but also avoids interference and impact of the fixed section 1 with the moving mold 400.

[0037] Optionally, the push plate 200 is provided with a threaded hole 210, and the second end 12 of the fixed section 1 is threaded into the threaded hole 210 so that the fixed section 1 and the push plate 200 can be connected more easily and more securely.

[0038] like Figure 7 As shown, the moving mold plate 300 has a first end face 320 and a second end face 330 opposite each other along the length of the fixed section 1. The first end face 320 is farther away from the push plate 200 relative to the second end face 330 along the length of the fixed section 1. The end face 111 of the first end portion 11 is adjacent to the first end face 320 along the length of the fixed section 1, or the end face 111 of the first end portion 11 is flush with the first end face 320. This makes the structure of the injection molding machine 1000 more reasonable.

[0039] For example, the first direction is the left-right direction, and the push plate 200 is located on the left side of the moving template 300. The first end face 320 is the right end face of the moving template 300, and the second end face 330 is the left end face of the moving template 300. The end face 111 of the first end portion 11 is located to the left of the first end face 320 and is adjacent to the first end face 320 in the left-right direction, or the end face 111 of the first end portion 11 is flush with the first end face 320.

[0040] like Figure 1 and Figure 2 As shown, the first end 11 of the fixed section 1 is provided with a mounting hole 13. The clutch section 2 has a third end 21 and a fourth end 22 opposite to each other in its length direction, and the third end 21 can be detachably fitted into the mounting hole 13. This allows the clutch section 2 and the fixed section 1 to be more securely connected. The length direction of the clutch section 2 is consistent with the length direction of the fixed section 1.

[0041] Optionally, the cross-sectional area of ​​the third end 21 of the clutch segment 2 is smaller than the cross-sectional area of ​​the rest of the clutch segment 2, and the edge of the cross-section of the third end 21 of the clutch segment 2 is located inside the edge of the cross-section of the rest of the clutch segment 2. This makes the structure of the clutch segment 2 more reasonable. The plane containing the cross-section of the third end 21 of the clutch segment 2 is perpendicular to the length direction of the clutch segment 2, and the plane containing the cross-section of the rest of the clutch segment 2 is also perpendicular to the length direction of the clutch segment 2.

[0042] like Figure 1 and Figure 2 As shown, in one example of the present invention, the third end 21 of the clutch segment 2 is provided with a mounting member that can extend and retract in the radial direction of the third end 21. The mounting member is configured to protrude outward relative to the clutch segment 2 in the radial direction of the third end 21 in the extended state.

[0043] Optionally, the mounting member includes an elastic member 24 connected to the third end 21 and a positioning member 23 connected to the elastic member 24. The positioning member 23 extends outward relative to the third end 21 in the radial direction of the third end 21 under the elastic force of the elastic member 24. The wall surface of the mounting hole 13 is provided with a mounting groove 14, and the positioning member 23 of the mounting member in the extended state cooperates with the mounting groove 14.

[0044] In other words, when the third end 21 of the clutch section 2 is engaged in the mounting hole 13, the positioning element 23 is engaged in the mounting groove 14. This prevents the clutch section 2 from easily disengaging from the fixed section 1, so that the clutch section 2 and the fixed section 1 are relatively firmly connected together, thereby making the structure of the push rod 100, the push assembly and the injection molding machine 1000 more stable.

[0045] In another example of this utility model, the wall of the mounting hole 13 is provided with a mounting member that can extend and retract in the radial direction of the mounting hole 13. The mounting member is configured to protrude inward in the radial direction of the mounting hole 13 relative to the wall of the mounting hole 13 in the extended state.

[0046] Optionally, the mounting component includes an elastic element 24 connected to the first end 11 and a positioning element 23 connected to the elastic element 24. The positioning element 23 extends inward relative to the wall of the mounting hole 13 in the radial direction of the mounting hole 13 under the elastic force of the elastic element 24. The peripheral surface of the third end 21 is provided with a mounting groove 14, and the positioning element 23 of the mounting component in the extended state cooperates with the mounting groove 14.

[0047] In other words, when the third end 21 of the clutch section 2 is engaged in the mounting hole 13, the positioning element 23 is engaged in the mounting groove 14. This prevents the clutch section 2 from easily disengaging from the fixed section 1, so that the clutch section 2 and the fixed section 1 are relatively firmly connected together, thereby making the structure of the push rod 100, the push assembly and the injection molding machine 1000 more stable.

[0048] Optionally, the mounting groove 14 extends circumferentially along the mounting hole 13, or the mounting groove 14 extends circumferentially along the third end 21. This allows the mounting member 23 to more easily fit into the mounting groove 14 when connecting the clutch section 2 and the fixed section 1, thereby further reducing the difficulty of connecting the clutch section 2 and the fixed section 1, and further shortening the time required to replace the push rod 100.

[0049] Optionally, the push rod 100 further includes a first magnetic element 3, which is disposed in one of the fixed section 1 and the clutch section 2, and cooperates with the other of the fixed section 1 and the clutch section 2 to attract the other of the fixed section 1 and the clutch section 2.

[0050] By incorporating the first magnetic component 3, the clutch section 2 and the fixed section 1 can be relatively securely connected, making the structure of the push rod 100, the push assembly, and the injection molding machine 1000 more stable. Furthermore, it eliminates the need for structures such as the mounting groove 14, mounting component 23, elastic component 24, and receiving holes for accommodating the mounting component 23 and elastic component 24. This reduces the processing difficulty and cost of the push rod 100, simplifying its structure. Additionally, the clutch section 2 can be relatively easily disengaged from the fixed section 1, further reducing the difficulty and time required to replace the push rod 100.

[0051] Optionally, the end face 111 and / or peripheral surface of the first end 11 of the fixing segment 1 are provided with a first mounting groove, and the first magnetic element 3 is disposed in the first mounting groove. Alternatively, the end face 211 and / or peripheral surface of the third end 21 of the clutch segment 2 are provided with a first mounting groove, and the first magnetic element 3 is disposed in the first mounting groove. This allows the first magnetic element 3 to be installed more easily and more securely on the first end 11 of the fixing segment 1 or the third end 21 of the clutch segment 2.

[0052] like Figures 3-6b As shown, the push rod 100 further includes a first magnetic element 3 and a second magnetic element 4. The first magnetic element 3 is disposed in the fixed section 1 and has a first magnetic pole 31 and a second magnetic pole. The second magnetic element 4 is disposed in the clutch section 2 and has a third magnetic pole 41 and a fourth magnetic pole.

[0053] The first magnetic pole 31 and the third magnetic pole 41 are opposite magnetic poles. The first magnetic pole 31 and the third magnetic pole 41 cooperate to allow the first magnetic element 3 and the second magnetic element 4 to attract each other, thereby connecting the clutch section 2 and the fixed section 1 together. The second magnetic pole and the fourth magnetic pole are opposite magnetic poles. The second magnetic pole and the fourth magnetic pole cooperate to allow the first magnetic element 3 and the second magnetic element 4 to attract each other, thereby connecting the clutch section 2 and the fixed section 1 together. In other words, the fixed section 1 and the clutch section 2 can be detachably connected through their cooperating opposite magnetic poles.

[0054] By setting the first magnetic element 3 and the second magnetic element 4, not only can the clutch section 2 and the fixed section 1 be connected relatively stably, so that the structure of the push rod 100, the push assembly and the injection molding machine 1000 is more stable, but also there is no need to set the mounting groove 14, the mounting part 23, the elastic part 24 and the receiving hole for accommodating the mounting part 23 and the elastic part 24, so as to reduce the processing difficulty and processing cost of the push rod 100 and make the structure of the push rod 100 simpler.

[0055] Furthermore, this design allows the clutch segment 2 to disengage relatively easily from the fixed segment 1, thereby further reducing the difficulty and time required to replace the push rod 100. Specifically, the clutch segment 2 can be rotated to disengage the first magnetic pole 31 and the third magnetic pole 41, as well as the second and fourth magnetic poles, thus disengaging the clutch segment 2 from the fixed segment 1. Moreover, by providing magnetic elements on both the clutch segment 2 and the fixed segment 1, it is not necessary for the clutch segment 2 and the fixed segment 1 to be ferromagnetic, thereby expanding the range of materials available for the clutch segment 2 and the fixed segment 1.

[0056] Optionally, the first magnetic pole 31 and the third magnetic pole 41 are arranged opposite each other along the length of the fixed section 1 (clutch section 2), and the second magnetic pole and the fourth magnetic pole are also arranged opposite each other along the length of the fixed section 1 (clutch section 2). This not only allows the clutch section 2 and the fixed section 1 to be connected more securely, thus making the structure of the push rod 100, the push assembly, and the injection molding machine 1000 more stable, but also makes it easier to disengage the clutch section 2 from the fixed section 1 by rotating the clutch section 2.

[0057] like Figure 5a and Figure 5b As shown, the push rod 100 further includes a third magnetic element 5, which has a fifth magnetic pole 51 and a sixth magnetic pole. In one example, the third magnetic element 5 is located in the fixed section 1, and the fifth magnetic pole 51 and the first magnetic pole 31 are spaced apart in the circumferential direction of the fixed section 1, with the fifth magnetic pole 51 and the third magnetic pole 41 being magnetic poles of the same name. In another example, the third magnetic element 5 is located in the clutch section 2, and the fifth magnetic pole 51 and the third magnetic pole 41 are spaced apart in the circumferential direction of the clutch section 2, with the fifth magnetic pole 51 and the first magnetic pole 31 being magnetic poles of the same name.

[0058] By rotating the clutch section 2 by a certain angle, the fifth magnetic pole 51 of the third magnetic element 5 can be brought close to the third magnetic pole 41 of the second magnetic element 4 (the first magnetic pole 31 of the first magnetic element 3), or the fifth magnetic pole 51 of the third magnetic element 5 and the third magnetic pole 41 of the second magnetic element 4 (the first magnetic pole 31 of the first magnetic element 3) can be made to face each other in the length direction of the fixed section 1 (clutch section 2), so that the third magnetic element 5 and the second magnetic element 4 (the first magnetic element 3) generate a repulsive force between them, so that the clutch section 2 can be more easily disengaged from the fixed section 1, further reducing the difficulty of replacing the push rod 100 and further shortening the time of replacing the push rod 100.

[0059] Optionally, there are two third magnetic elements 5, which are disposed in the fixed section 1. The third magnetic pole 41 of the second magnetic element 4 is located between the fifth magnetic poles 51 of the two third magnetic elements 5 in the circumferential direction of the clutch section 2. Correspondingly, the first magnetic pole 31 of the first magnetic element 3 is located between the fifth magnetic poles 51 of the two third magnetic elements 5 in the circumferential direction of the clutch section 2.

[0060] Therefore, whether the clutch section 2 is rotated clockwise or counterclockwise, after the clutch section 2 is rotated at a certain angle, the fifth magnetic pole 51 of the third magnetic element 5 and the third magnetic pole 41 of the second magnetic element 4 can be brought close to or opposite each other, so that the third magnetic element 5 and the second magnetic element 4 can generate a repulsive force between each other. Thus, the clutch section 2 can be disengaged from the fixed section 1 without rotating the clutch section 2 in a specific direction, so as to further reduce the difficulty of replacing the push rod 100.

[0061] Optionally, there are two third magnetic elements 5, which are disposed in the clutch section 2. The first magnetic pole 31 of the first magnetic element 3 is located between the fifth magnetic poles 51 of the two third magnetic elements 5 in the circumferential direction of the clutch section 2. Correspondingly, the third magnetic pole 41 of the second magnetic element 4 is located between the fifth magnetic poles 51 of the two third magnetic elements 5 in the circumferential direction of the clutch section 2.

[0062] Therefore, whether the clutch section 2 is rotated clockwise or counterclockwise, after the clutch section 2 is rotated at a certain angle, the fifth magnetic pole 51 of the third magnetic element 5 can be brought close to or opposite to the first magnetic pole 31 of the first magnetic element 3, so that the third magnetic element 5 and the first magnetic element 3 can generate a repulsive force between them. Thus, the clutch section 2 can be disengaged from the fixed section 1 without rotating the clutch section 2 in a specific direction, thereby further reducing the difficulty of replacing the push rod 100.

[0063] like Figure 6a and Figure 6bAs shown, the third magnetic element 5 is disposed in the fixed section 1. The fifth magnetic pole 51 of the third magnetic element 5 and the first magnetic pole 31 of the first magnetic element 3 are spaced apart in the circumferential direction of the fixed section 1. The fifth magnetic pole 51 of the third magnetic element 5 and the third magnetic pole 41 of the second magnetic element 4 are the same magnetic pole. The push rod 100 further includes a fourth magnetic element 6, which is disposed in the clutch section 2. The fourth magnetic element 6 has a seventh magnetic pole 61 and an eighth magnetic pole. The seventh magnetic pole 61 of the fourth magnetic element 6 and the third magnetic pole 41 of the second magnetic element 4 are spaced apart in the circumferential direction of the clutch section 2. The seventh magnetic pole 61 of the fourth magnetic element 6 and the first magnetic pole 31 of the first magnetic element 3 are the same magnetic pole. The first magnetic pole 31 and the third magnetic pole 41 are located between the fifth magnetic pole 51 and the seventh magnetic pole 61 in the circumferential direction of the clutch section 2.

[0064] Therefore, after rotating the clutch section 2 by a certain angle, the first magnetic pole 31 can be brought close to the seventh magnetic pole 61 or the first magnetic pole 31 and the seventh magnetic pole 61 can be made to face each other along the length of the fixed section 1, and the third magnetic pole 41 can be brought close to the fifth magnetic pole 51 or the third magnetic pole 41 and the fifth magnetic pole 51 can be made to face each other along the length of the fixed section 1. This will cause the first magnetic element 3 and the fourth magnetic element 6 to generate a repulsive force between them, and the second magnetic element 4 and the third magnetic element 5 to generate a repulsive force between them. This will make it easier for the clutch section 2 to disengage from the fixed section 1, further reducing the difficulty of replacing the push rod 100 and further shortening the time of replacing the push rod 100.

[0065] Optionally, the circumferential angle between the fifth magnetic pole 51 and the first magnetic pole 31 in the fixed section 1 is equal to the circumferential angle between the seventh magnetic pole 61 and the third magnetic pole 41 in the clutch section 2. This increases the repulsive force between the first magnetic element 3 and the fourth magnetic element 6, and between the second magnetic element 4 and the third magnetic element 5, making it easier for the clutch section 2 to disengage from the fixed section 1, further reducing the difficulty of replacing the push rod 100 and shortening the time required to replace the push rod 100.

[0066] Optionally, the end face 111 and / or peripheral surface of the first end 11 of the fixed section 1 are provided with a first mounting groove and a third mounting groove, with the first magnetic element 3 disposed in the first mounting groove and the third magnetic element 5 disposed in the third mounting groove. This allows for easier and more secure installation of the first magnetic element 3 and the third magnetic element 5 onto the first end 11 of the fixed section 1. The end face 211 and / or peripheral surface of the third end 21 of the clutch section 2 are provided with a second mounting groove and a fourth mounting groove, with the second magnetic element 4 disposed in the second mounting groove and the fourth magnetic element 6 disposed in the fourth mounting groove. This allows for easier and more secure installation of the second magnetic element 4 and the fourth magnetic element 6 onto the third end 21 of the clutch section 2.

[0067] like Figure 3 and Figure 4As shown, one of the end face 111 of the first end 11 of the fixed section 1 and the end face 211 of the third end 21 of the clutch section 2 is provided with a groove 15, and the other of the end face 111 of the first end 11 of the fixed section 1 and the end face 211 of the third end 21 of the clutch section 2 is provided with a protrusion 25. The protrusion 25 is detachably fitted into the groove 15. When the clutch section 2 and the fixed section 1 are connected, the protrusion 25 fits into the groove 15, thereby making the clutch section 2 and the fixed section 1 relatively and firmly connected together, thus making the structure of the push rod 100, the push assembly and the injection molding machine 1000 more stable.

[0068] Optionally, the length of the protrusion 25 is in the ratio of the length of the fixed section 1 to the length of the corresponding section 2 (0.3-0.4):1. That is, when the protrusion 25 is located on the end face 111 of the first end 11 of the fixed section 1, the length of the protrusion 25 is in the ratio of the length of the fixed section 1 to the length of the fixed section 1 (0.3-0.4):1; when the protrusion 25 is located on the end face 211 of the third end 21 of the clutch section 2, the length of the protrusion 25 is in the ratio of the length of the clutch section 2 to the length of the clutch section 2 (0.3-0.4):1. Thus, when the push rod 100 performs the ejection and retraction movements, even if the clutch section 2 rotates slightly, it will not disengage from the fixed section 1, so that the clutch section 2 and the fixed section 1 are relatively stably connected together, thereby making the structure of the push rod 100, the push assembly, and the injection molding machine 1000 more stable.

[0069] Alternatively, the length of the protrusion 25 is in the ratio of (0.31-0.34):1 to the length of the corresponding one of the fixed section 1 and the clutch section 2. Thus, when the push rod 100 performs the ejection and retraction movements, even if the clutch section 2 rotates slightly, it will not disengage from the fixed section 1, so that the clutch section 2 and the fixed section 1 are relatively stably connected together, thereby making the structure of the push rod 100, the push assembly, and the injection molding machine 1000 more stable.

[0070] The push rod 100 further includes a grip portion movably disposed on the clutch section 2 between a grip position and a retracted position. In the grip position, at least a portion of the grip portion is located outside the circumferential surface 26 of the clutch section 2, and in the retracted position, the grip portion is located inside the circumferential surface 26 of the clutch section 2.

[0071] When it is not necessary to disengage the clutch section 2 from the fixed section 1 to change the position of the push rod 100, the gripping part is in the retracted position to avoid interference with other components of the injection molding machine 1000. When it is necessary to rotate the clutch section 2 to disengage it from the fixed section 1, the gripping part is in the gripping position so that the operator can better grip the clutch section 2, thereby allowing the operator to rotate the clutch section 2 with less effort, further reducing the difficulty and time required to change the push rod 100.

[0072] Optionally, the circumferential surface 26 of the clutch section 2 is provided with a receiving groove, which has a first side wall and a second side wall opposite to each other in the longitudinal direction of the clutch section 2. The gripping part is hinged to the first side wall so that the gripping part is rotatably disposed between the gripping position and the retracted position. In the retracted position, the gripping part is located in the receiving groove, and in the gripping position, at least a portion of the gripping part extends out of the receiving groove. This makes the structure of the clutch section 2 and the push rod 100 more reasonable.

[0073] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0074] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0075] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a connection that allows communication between them; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0076] In this utility model, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0077] In this utility model, the terms "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., refer to a specific feature, structure, material, or characteristic described in connection with that embodiment or example, which is included in at least one embodiment or example of this utility model. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0078] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present invention.

Claims

1. A push rod for an injection molding machine, characterized in that, It includes a fixed section and a clutch section, wherein the clutch section is detachably connected to the fixed section; The fixed section has a first end and a second end opposite to each other in its length direction, the first end being provided with a mounting hole, and the clutch section has a third end and a fourth end opposite to each other in its length direction, the third end being detachably fitted into the mounting hole; The third end of the clutch segment is provided with a mounting member that can extend and retract in the radial direction of the third end. The mounting member is configured to protrude outward relative to the clutch segment in the radial direction of the third end in the extended state; or The wall of the mounting hole is provided with a mounting member that can extend and retract in the radial direction of the mounting hole. The mounting member is configured to protrude inward relative to the wall of the mounting hole in the radial direction of the mounting hole when extended. or It also includes a first magnetic element disposed on one of the fixed section and the clutch section, the first magnetic element cooperating with the other of the fixed section and the clutch section to attract the other of the fixed section and the clutch section.

2. The push rod of the injection molding machine according to claim 1, characterized in that, The mounting component includes an elastic element connected to the third end and a positioning element connected to the elastic element. The positioning element extends outward relative to the third end in a radial direction relative to the third end under the action of the elastic force of the elastic element; or The mounting component includes an elastic element connected to the first end and a positioning element connected to the elastic element. The positioning element extends inward in the radial direction of the mounting hole relative to the wall surface of the mounting hole by the elastic force of the elastic element.

3. The push rod of the injection molding machine according to claim 2, characterized in that, The wall surface of the mounting hole is provided with a mounting groove, and the positioning member of the mounting component in the extended state cooperates with the mounting groove; or The third end has a mounting groove on its circumferential surface, and the positioning member of the mounting member in the extended state engages with the mounting groove.

4. The push rod of the injection molding machine according to claim 3, characterized in that, The mounting groove extends circumferentially along the mounting hole; or The mounting groove extends circumferentially along the third end.

5. The push rod of the injection molding machine according to claim 1, characterized in that, The first end face and / or peripheral surface are provided with a first mounting groove, and the first magnetic component is disposed in the first mounting groove; or The end face and / or circumferential surface of the third end are provided with a first assembly groove, and the first magnetic component is disposed in the first assembly groove.

6. The push rod of the injection molding machine according to claim 5, characterized in that, It also includes a grip portion, which is movably disposed on the clutch segment between a grip position and a retracted position, wherein in the grip position, at least a portion of the grip portion is located on the outer side of the circumferential surface of the clutch segment, and in the retracted position, the grip portion is located on the inner side of the circumferential surface of the clutch segment.

7. A jacking assembly, characterized in that, include: Top push plate; Multiple fixed sections, each of the fixed sections being disposed on the push plate; A clutch section, which is detachably connected to a portion of the plurality of fixed sections to form a push rod of the injection molding machine according to any one of claims 1-6.

8. An injection molding machine, characterized in that, include: A jacking assembly, wherein the jacking assembly is the jacking assembly according to claim 7; and A movable template having a through hole through which the push rod of the push assembly passes.

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