Injection molding machine and injection moving assembly thereof

Abstract

The utility model discloses an injection molding machine and an injection moving assembly thereof. The injection moving assembly of the injection molding machine comprises a template, the mounting block is arranged at the end, close to a formwork, of the rod piece body, and at least one through step groove is formed in the mounting block; the connecting piece is sequentially provided with a first threaded section, a first limiting step and a second limiting step in the length direction, the connecting piece is arranged in the step groove in a penetrating mode, the elastic piece abuts against the position between the second limiting step and the step in the step groove, the first threaded section is in threaded connection with the formwork, and the second threaded section is in threaded connection with the formwork. The first limiting step is propped against the template; according to the scheme, the meshing connection depth of the connecting piece and the template is limited, then the deformation amount of all the elastic pieces after installation tends to be the same, the installation precision of the elastic pieces is guaranteed, the stress deviation of the rod piece body can be balanced through the arrangement of the elastic pieces, and the service life of the rod piece body is prolonged; and the equipment performance of the injection shifting assembly of the injection molding machine is improved.

Description

Technical Field

[0001] The present application relates to the field of injection molding machines, and in particular to an injection molding machine and an injection-shifting assembly thereof. Background Art

[0002] In the full-motor shot-shifting components of injection molding machines on the market, force is applied by arranging two tie rods or screws on both sides of the injection structure. The screw transmission on both sides is prone to form a slight displacement deviation, which in turn leads to a tension deviation on both sides of the injection structure. Moreover, since the screw is mechanically rigidly connected, when the two screws are transmitted through a synchronous belt, once one of the screws is mechanically limited first, it will generate resistance to bear most of the driving torque, and the other screw will be less stressed, or even only one screw will be stressed, affecting the service life of the screw and the performance of the equipment. Utility Model Content

[0003] In order to solve the above problems, the present application provides an injection molding machine and an injection-shifting assembly thereof.

[0004] According to one aspect of an embodiment of the present application, a shot-shifting assembly of an injection molding machine is disclosed, the shot-shifting assembly of the injection molding machine comprising a template; a rod body and a mounting block, the mounting block being arranged at one end of the rod body close to the template, the mounting block being provided with at least one penetrating step groove; at least one connecting member and at least one elastic member, the connecting member being provided with a first threaded section, a first limiting step and a second limiting step in sequence along the length direction, the connecting member being passed through the step groove, the second limiting step being opposite to the step in the step groove, the elastic member being abutted between the second limiting step and the step in the step groove, the connecting member being provided with the first threaded section and one end of the first limiting step extending out of the step groove, the first threaded section being threadedly connected to the template, the first limiting step being abutted against the template; an injection structure having a nozzle capable of injecting and discharging material, the injection structure being arranged on the rod body, the injection structure being able to move relative to the rod body in a direction close to the template so that the nozzle penetrates into the template and forms a contact force with the mold.

[0005] In an exemplary embodiment, a plurality of the step grooves are provided, and the plurality of the step grooves are circumferentially spaced around the rod body; among the plurality of the step grooves, the connecting member and the elastic member are inserted into a part of the step grooves or all of the step grooves.

[0006] In an exemplary embodiment, there are three or more step grooves.

[0007] In an exemplary embodiment, there are multiple elastic members, and the elastic forces of the elastic members are equal when the deformation amounts are the same.

[0008] In an exemplary embodiment, a second thread segment and a third limiting step are provided on the circumferential side of the rod body, the second thread segment is threadedly connected to the mounting block, and the third limiting step abuts against the end surface of the mounting block.

[0009] In an exemplary embodiment, the elastic member is a disc spring.

[0010] In an exemplary embodiment, the injection structure includes a barrel and a driving device, the nozzle is provided at one end of the barrel, and the other end of the barrel is provided on the driving device, the driving device is connected to the rod body, and the driving device is configured to slide back and forth along the extension direction of the rod body to drive the barrel closer to or away from the template relative to the rod body; the rod body is provided with two, and the two rod bodies are respectively located on opposite sides of the barrel.

[0011] In an exemplary embodiment, a plurality of the elastic members are arranged in a ring shape with the rod body as the center to form an elastic member group, and the elastic member group includes at least one elastic member.

[0012] In an exemplary embodiment, at least two elastic member groups are provided, and two adjacent elastic member groups are arranged in inner and outer rings, and the elastic members in the two adjacent elastic member groups are staggered with each other.

[0013] The technical solution provided by the embodiments of the present application includes at least the following beneficial effects:

[0014] The connecting member of the present application is provided with a first threaded section, a first limiting step and a second limiting step which are arranged in sequence, the connecting member passes through the step groove of the elastic member and the mounting block, and is connected to the template through the first threaded section, wherein the elastic member is installed between the second limiting step of the connecting member and the step of the step groove, the first limiting step is against the template, and limits the meshing connection depth between the connecting member and the template, so that the deformation amount of each elastic member when installed on the mounting block through the connecting member tends to be the same, thereby ensuring the installation accuracy of the elastic member. During operation, the injection structure drives the nozzle to continuously approach the template relative to the rod body, and forms a contact force between the nozzle and the mold, the rod body is pulled back in the direction away from the template, and the position of the connecting member remains unchanged, so that the elastic member is compressed to form an injection force to ensure the contact force of the nozzle. At the same time, when the rod body is provided with two or more, the elastic member can balance the force deviation of the rod body, improve the service life of the rod body, and improve the equipment performance of the injection assembly of the injection molding machine.

[0015] According to one aspect of an embodiment of the present application, an injection molding machine is disclosed, and the injection molding machine includes the above-mentioned injection molding machine shot shifting assembly.

[0016] The technical solution provided by the embodiments of the present application includes at least the following beneficial effects:

[0017] The injection molding machine disclosed in the present application has a plurality of step grooves on the mounting block, which can meet the required injection displacement force of the equipment by selectively arranging a corresponding number of connecting parts and elastic parts in the plurality of step grooves on the mounting block. The elastic parts can be installed as universal parts to improve applicability, and the connecting parts are positioned relative to each other through the first limiting step and the position of the template, and the rod body is positioned relative to each other through the third limiting step and the position of the mounting block, so that the installation length of the elastic part remains fixed, the installation accuracy of each elastic part is improved, the force on the rod body is more uniform, and the equipment performance of the injection molding machine is improved.

[0018] It should be understood that the foregoing general description and the following detailed description are exemplary only and are not restrictive of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The accompanying drawings herein are incorporated in and constitute a part of the specification, illustrate embodiments consistent with the present application, and together with the description, are used to explain the principles of the present application.

[0020] Figure 1 An assembly cross-sectional view of the shot-shifting assembly of an injection molding machine provided in one embodiment of the present application.

[0021] Figure 2 A structural cross-sectional view of a mounting block provided in one embodiment of the present application;

[0022] Figure 3 A structural diagram of a connector provided in one embodiment of the present application;

[0023] Figure 4 A structural diagram of a rod body provided in one embodiment of the present application;

[0024] Figure 5 for Figure 4 A partial enlarged view of area A in the middle;

[0025] Figure 6 A structural diagram of a mounting block with three step grooves provided in an embodiment of the present application;

[0026] Figure 7 A structural diagram of a mounting block with six step grooves provided in an embodiment of the present application;

[0027] Figure 8 A connection structure diagram of a template, a mounting block and a connecting piece provided in an embodiment of the present application;

[0028] Fig. 9 A structural diagram of an injection molding machine's injection-shifting assembly provided in one embodiment of the present application;

[0029] Fig.10A schematic diagram of the composition of an injection molding machine provided in one embodiment of the present application.

[0030] The following are the descriptions of the reference numerals:

[0031] 100-template, 101-first screw hole, 110-rod body, 120-mounting block, 130-connecting piece, 131-first threaded section, 132-first limiting step, 133-second limiting step, 140-elastic piece, 210-step groove, 211-step surface, 212-second screw hole, 410-second threaded section, 420-third limiting step, 910-barrel, 920-driving device, 921-motor, 922-driving rod, 930-connecting rod system, 940-movable template, 1010-injection molding machine, 1020-injection molding machine's shooting and shifting assembly. DETAILED DESCRIPTION

[0032] Example embodiments will now be described more fully with reference to the accompanying drawings. However, example embodiments can be implemented in a variety of forms and should not be construed as limited to the examples set forth herein; rather, these example embodiments are provided so that the description of this application will be more comprehensive and complete, and the concept of the example embodiments will be fully conveyed to those skilled in the art.

[0033] In the description of the utility model, all the connection relationships mentioned do not refer to the direct connection of components, but refer to the fact that a better connection structure can be formed by adding or reducing connection accessories according to the specific implementation situation. The various technical features in the utility model can be combined interchangeably without conflicting with each other.

[0034] In the description of the present invention, unless otherwise clearly defined, terms such as setting, installing, connecting, etc. should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in the present invention based on the specific content of the technical solution.

[0035] In the description of the present invention, it should be understood that descriptions involving orientation, such as up, down, front, back, left, right, etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0036] In the description of the present utility model, "several" means one or more, "more" means more than two, "greater than", "less than", "exceed" etc. are understood to exclude the number, and "above", "below", "within" etc. are understood to include the number.

[0037] Reference Figure 1 , Figure 2 and Figure 3 The present application provides an injection molding machine injection assembly comprising a template 100, a rod body 110, a mounting block 120, at least one connecting member 130, and at least one elastic member 140. The mounting block 120 is disposed at one end of the rod body 110 close to the template 100, and the rod body 110 extends in a direction away from the template 100. Figure 2 As shown, at least one step groove 210 is provided in the mounting block 120. Figure 3 As shown, the connecting member 130 is provided with a first thread segment 131, a first limiting step 132 and a second limiting step 133 in sequence along the length direction. Figure 1 The connecting member 130 is inserted into the step groove 210, the second limiting step 133 is opposite to the step surface 211 in the step groove 210, the elastic member 140 abuts between the second limiting step 133 and the step surface 211 in the step groove 210, the connecting member 130 is provided with a first thread segment 131 and one end of the first limiting step 132 extends out of the step groove 210, and the first thread segment 131 is threadedly connected to the template 100, and the first limiting step 132 abuts against the template 100.

[0038] Reference Fig. 9 The injection-movement assembly of the injection molding machine of the present application also includes an injection structure, which has a nozzle capable of injecting materials. The injection structure is arranged on the rod body 110, and the injection structure can move relative to the rod body 110 toward the direction close to the template 100 so that the nozzle penetrates the template 100 and forms a contact force with the mold.

[0039] Specifically, the elastic member 140 is installed between the second limiting step 133 of the connecting member 130 and the step of the step groove 210, and the first limiting step 132 is against the template 100, limiting the meshing connection depth of the connecting member 130 and the template 100, so that the deformation of each elastic member 140 installed on the mounting block 120 through the connecting member 130 tends to be the same, ensuring the installation accuracy of the elastic member 140. During the working process, the injection structure drives the nozzle to continuously approach the template 100 relative to the rod body 110, and forms a contact force between the nozzle and the mold, and the rod body 110 moves away from the template 100. Pulling back drives the mounting block 120 away from the template 100, while the position of the connecting member 130 remains unchanged, and the distance between the step surface 211 on the mounting block 120 and the second limiting step 133 of the connecting member 130 is reduced, so that the elastic member 140 is compressed to form a displacement force on the mounting block 120 and the connecting member 130 to ensure the contact force of the nozzle. At the same time, the rod body 110 can be a screw rod, and the rod body 110 can be provided with two or more. The elastic member 140 can balance the force deviation of the rod body 110 when it is used as a screw rod, thereby increasing the service life of the rod body 110 and improving the equipment performance of the displacement assembly of the injection molding machine.

[0040] The step groove 210 in this embodiment includes a first hole and a second hole arranged in sequence, the first hole and the second hole are circular holes, the inner diameter of the first hole is larger than the inner diameter of the second hole, so that an inner step is formed between the first hole and the second hole, the first hole can accommodate the elastic member 140, and at the same time, the end surface connected between the first hole and the second hole is a step surface 211, the second hole is closer to the template 100 relative to the first hole, and the step surface 211 is annular and faces away from the template 100, thereby increasing the contact area between the elastic member 140 and the step surface 211 and increasing the installation stability of the elastic member 140. In fact, the first hole and the second hole can also be square holes or other shapes, the cross-sectional width of the first hole is larger than the cross-sectional width of the second hole, so that an inner step is formed between the first hole and the second hole. In addition, a second screw hole 212 can be provided on the side of the mounting block 120 facing away from the template 100, and the rod body 110 is threadedly connected to the second screw hole 212, or the mounting block 120 and the rod body 110 can be formed into an integrated structure by welding or other methods.

[0041] Reference Figure 3 The connector 130 in this embodiment includes a first threaded section 131, a first limiting step 132, and a second limiting step 133, which are all columnar and arranged in sequence along its own length direction. The outer diameter of the second limiting step 133 is larger than the outer diameter of the first limiting step 132. The outer diameter of the first limiting step 132 is larger than the outer diameter of the first threaded section 131. The outer periphery of the first threaded section 131 is provided with an external thread. The first threaded section 131 can be engaged with the first screw hole 101 of the template 100. The first limiting step 132 can pass through the step groove 210 and abut against the end face of the template 100. The end face of the second limiting step 133 is spaced and opposite to the step face 211 of the step groove 210. A hexagonal groove can be provided on the end face of the second limiting step 133 facing away from the first limiting step 132 to facilitate installation by the staff.

[0042] In this embodiment, the elastic member 140 is a disc spring. Specifically, the disc spring is arranged in a compressed state between the step surface 211 of the step groove 210 and the second limit step 133. When the rod body 110 is withdrawn relative to the template 100, the disc spring can provide the nozzle with a shooting force. The elastic member 140 is selected as a disc spring, which can be used as a universal part for installation of the shooting component of the injection molding machine. When it is necessary to increase or decrease the shooting force, the disc spring can be configured for multiple step grooves 210, or the disc spring and the connecting member 130 on some step grooves 210 can be cancelled to adjust the shooting force of different equipment. The same type of disc spring can be used for assembly, which reduces the purchase of different types of elastic members 140 and reduces inventory pressure. In addition, the elastic member 140 can also be made of ordinary springs, rubber, etc.

[0043] Reference Figure 4 and Figure 5The rod body 110 is provided with a second threaded section 410 and a third limiting step 420 on the circumferential side. The second threaded section 410 is threadedly connected to the mounting block 120, and the third limiting step 420 is against the end surface of the mounting block 120. Specifically, the connector 130 is positioned with the template 100 through the first limiting step 132, and the rod body 110 is positioned with the mounting block 120 through the third limiting step 420, so that the compression lengths of the plurality of elastic members 140 after installation are consistent, the installation length of the elastic members 140 is kept fixed, the installation accuracy of each elastic member 140 is improved, the force on the rod body 110 is more uniform, and the equipment performance of the injection molding machine is improved.

[0044] In this embodiment, the second thread segment 410 is arranged at the end of the rod body 110, and the outer periphery of the second thread segment 410 is formed with an external thread for engaging with the second screw hole 212 on the mounting block 120. The outer diameter of the third limiting step 420 is larger than the second thread segment 410, so that after the second thread segment 410 is engaged with the mounting block 120, the third limiting step 420 can play a limiting role and abut against the end face of the mounting block 120 facing away from the template 100, thereby confirming the engagement depth of the second thread segment 410 and the mounting block 120.

[0045] In some embodiments, a plurality of step grooves 210 are provided, and a plurality of step grooves 210 are three or more, and the plurality of step grooves 210 are arranged at intervals around the rod body 110 in the circumferential direction; among the plurality of step grooves 210, a part of the step grooves 210 or all of the step grooves 210 are provided with connecting members 130 and elastic members 140. Specifically, the mounting block 120 is provided with a plurality of step grooves 210 at intervals around the outer circumference of the rod body 110. The staff can selectively provide a corresponding number of connecting members 130 and elastic members 140 in the plurality of step grooves 210 on the mounting block 120 according to the required displacement force of the equipment, thereby meeting the displacement force requirements of the equipment. Moreover, the elastic member 140 can be installed in any step groove 210 as a universal member to improve applicability. In fact, there can be only one or two step grooves 210.

[0046] Reference Figure 6 There are three step grooves 210 on the mounting block 120 , and correspondingly, the elastic member 140 and the connecting member 130 can be set in groups and pass through all the step grooves 210 or any one or any two step grooves 210 .

[0047] In order to meet the requirements of different devices for different displacement forces, the step grooves 210 on the mounting block 120 of the present application are more than three. Figure 7There are six step grooves 210 on the mounting block 120, and the elastic members 140 and the connecting members 130 can be inserted in groups on all the step grooves 210 or any part of the step grooves 210. The step grooves 210 with the connecting members 130 and the elastic members 140 can be staggered and arranged alternately with the step grooves 210 without configuration, or the step grooves 210 with the connecting members 130 and the elastic members 140 can be arranged adjacent to each other. This embodiment does not impose specific restrictions on the insertion positions of the elastic members 140 and the connecting members 130. When the equipment requires a larger shooting displacement force, during the installation process, the elastic members 140 and the connecting members 130 can be added to the vacant step grooves 210. When the equipment requires a smaller shooting displacement force, during the installation process, the configuration of the elastic members 140 and the connecting members 130 in the step grooves 210 is reduced.

[0048] Furthermore, there are multiple elastic members 140, and the elastic forces of the elastic members 140 are equal under the same deformation amount. Specifically, multiple elastic members 140 have the same elastic force under the same deformation amount, so that multiple elastic members 140 can be assembled as common parts, and the shooting displacement force that different numbers of elastic members 140 can provide for the equipment can be directly calculated. By adding or reducing elastic members 140 in multiple step grooves 210, the shooting displacement force required by the equipment can be achieved, which is convenient for calculation, avoids inventory backlog of elastic members 140 of different sizes and elastic coefficients, and reduces production costs.

[0049] In this embodiment, the connecting member 130 includes a first threaded segment 131, a first limiting step 132 and a second limiting step 133 which are sequentially arranged along its own length direction. The first threaded segment 131 and the first limiting step 132 extend through the step groove 210 of the mounting seat. The first threaded segment 131 is threadedly connected to the template 100, and the first limiting step 132 abuts against the template 100. The connecting member 130 is fixed to the template 100 so that the position of the connecting member 130 is determined. A second threaded segment 410 and a third limiting step 420 are provided on the circumferential side of the rod body 110. The second threaded segment 410 is threadedly connected to the mounting block 120, and the third limiting step 420 abuts against the end face of the mounting block 120. The rod body 110 and the mounting block 120 are fixedly connected to the template 100. The fixing determines the position of the mounting block 120, and one end of the elastic member 140 abuts against the mounting block 120 with a determined position, and the other end abuts against the second limiting step 133 with a determined position, so that the compression lengths of the multiple elastic members 140 are consistent, and the elastic forces of the multiple elastic members 140 are equal under the same deformation amount, so that the multiple compressed elastic members 140 can provide almost the same displacement force for the mounting block 120 respectively, ensuring that the mounting block 120 is evenly stressed, reducing the skewness of the mounting block 120 and the rod body 110, and allowing the multiple elastic members 140 to be assembled as a universal part, so that the displacement force that different numbers of elastic members 140 can provide for the equipment can be calculated more accurately, thereby improving the installation accuracy.

[0050] Further, a plurality of elastic members 140 are arranged in a ring shape with the rod body 110 as the center to form an elastic member 140 group, and the elastic member 140 group has at least one. Specifically, a plurality of step grooves 210 corresponding to the installation of the elastic members 140 are also arranged in a ring shape with the rod body 110 as the center to form a step groove 210 group. The plurality of elastic members 140 can be arranged one-to-one on all the step grooves 210, or can be arranged with the same number of step grooves 210 spaced apart. The plurality of elastic members 140 are arranged in a ring shape, which can make the mounting block 120 more evenly stressed, reduce the skewness of the mounting block 120 and the rod body 110, and improve the service life of the rod body 110 and the performance of the equipment.

[0051] Furthermore, in this embodiment, the plurality of step grooves 210 are arranged in a ring with the rod body 110 as the center to form a step groove 210 group; there are at least two step groove 210 groups, and two adjacent step groove 210 groups are arranged in inner and outer rings. Specifically, when the mounting block 120 is provided with a plurality of step grooves 210, the step groove 210 groups arranged in inner and outer rings can improve the design space utilization rate of the mounting block 120 and reduce the interference and collision between the mounting block 120 and the rod body 110 or other parts. In fact, the step groove 210 group can be provided with one or more groups, and arranged according to the number of the step grooves 210.

[0052] Furthermore, the step grooves 210 in two adjacent step groove 210 groups are staggered with each other. Specifically, the step grooves 210 in two adjacent step groove 210 groups are staggered one by one, which can further improve the design space utilization of the mounting block 120. In addition, the step grooves 210 in the step groove 210 group in the inner ring can also be arranged directly opposite to the step grooves 210 in the outer ring.

[0053] Reference Figure 8 and Fig. 9 The elastic member 140 and the connecting member 130 are arranged in groups on all the step grooves 210 of the mounting block 120 to improve the injection force of the equipment. Moreover, in this embodiment, the injection structure includes a barrel 910 and a driving device 920, one end of the barrel 910 is provided with a nozzle, and the other end of the barrel 910 is arranged on the driving device 920, and the driving device 920 is connected to the rod body 110. The driving device 920 is configured to slide back and forth along the extension direction of the rod body 110 to drive the barrel 910 relative to the rod body 110 to move closer to or away from the template 100; the rod body 110 is provided with two, and the two rod bodies 110 are respectively located on the opposite sides of the barrel 910. Specifically, the driving device 920 can slide back and forth along the extension direction of the rod body 110 when driven, so that the driving device 920 can drive the barrel 910 to approach the template 100 relative to the rod body 110, so that the nozzle on the barrel 910 can pass through the template 100 and press against the mold to discharge the material, and the nozzle presses against the mold to form a contact force, and the driving device 920 continues to move along the rod body 110 toward the template 100 to drive the nozzle of the barrel 910 to continuously press the mold, so that the rod body 110 and the mounting block 120 are away from the template 100 relative to the barrel 910 at the same time, and the position of the connecting member 130 remains unchanged, and the elastic member 140 located between the step groove 210 of the mounting block 120 and the second limiting step 133 of the connecting member 130 is compressed to form an injection displacement force to ensure the force with which the nozzle contacts the mold.

[0054] Moreover, the present application has two rod bodies 110, which are respectively located on opposite sides of the barrel 910, and a mounting block 120 is provided at one end of the rod body 110 close to the template 100, and the elastic member 140 is passed through the step groove 210 of the corresponding mounting block 120 through the connecting member 130. Specifically, the rod bodies 110 located on both sides of the barrel 910 can play a guiding and uniform force effect, guide the nozzle of the barrel 910 to align with the feed port of the mold and pass through the avoidance hole on the template 100, and reduce the skew of the rod body 110 and the barrel 910. In some embodiments, the driving device 920 includes a motor 921 and two driving rods 922. The motor 921 drives the two driving rods 922 to rotate simultaneously through a transmission structure such as a belt. The driving rods 922 and the rod body 110 are connected in a ball screw. The driving rods 922 are engaged with the rod body 110. When the driving rods 922 rotate, the driving rods 922 can slide back and forth along the rod body 110 according to the direction of rotation, thereby making the entire driving device 920 slide back and forth along the length direction of the rod body 110. In some embodiments, the rod body 110 can be a screw, a cylinder, or a pull rod.

[0055] Reference Fig.10 The present application also provides an injection molding machine 1010, the injection molding machine 1010 includes the injection molding machine injection assembly 1020, such as Fig. 9 As shown, the injection molding machine 1010 also includes a movable platen 940, a connecting rod system 930, a mold and a frame. The movable platen 940 and the template 100 are arranged relative to each other, and the mold is arranged between the movable platen 940 and the template 100. The connecting rod system 930 drives the movable platen 940 to move closer to or away from the template 100, thereby realizing the closing and opening of the mold. In fact, the template 100 is fixedly connected to the frame by bolts and other fixing parts, and the motor 921 can be slidably connected to the frame by structures such as slide rails. The sliding direction of the motor 921 is consistent with the extension direction of the rod body 110, thereby reducing the shaking caused by displacement.

[0056] Those skilled in the art will readily appreciate other embodiments of the present application after considering the specification and practicing the utility model disclosed herein. The present application is intended to cover any modification, use or adaptation of the present application, which follows the general principles of the present application and includes common knowledge or customary techniques in the art that are not disclosed in the present application. The specification and examples are intended to be exemplary only, and the true scope and spirit of the present application are indicated by the appended claims.

Claims

1. A shot transfer assembly of an injection molding machine, characterized in that: include: template; A rod body and a mounting block, wherein the mounting block is arranged at one end of the rod body close to the template, and at least one step groove is provided in the mounting block; At least one connecting member and at least one elastic member, the connecting member is provided with a first thread segment, a first limiting step and a second limiting step in sequence along the length direction, the connecting member is passed through the step groove, the second limiting step is opposite to the step surface in the step groove, the elastic member abuts between the second limiting step and the step surface in the step groove, the connecting member is provided with the first thread segment and one end of the first limiting step protrudes from the step groove, the first thread segment is threadedly connected to the template, and the first limiting step abuts against the template; The injection structure has a nozzle capable of injecting material. The injection structure is arranged on the rod body and can move relative to the rod body toward the template so that the nozzle penetrates the template and forms a contact force with the mold.

2. The injection molding machine's injection-shifting assembly according to claim 1, characterized in that: There are a plurality of step grooves, and the plurality of step grooves are circumferentially spaced around the rod body; Among the plurality of step grooves, the connecting member and the elastic member are inserted into a part of the step grooves or all of the step grooves.

3. The injection molding machine's injection-shifting assembly according to claim 1 or 2, characterized in that: The number of the step grooves is more than three.

4. The injection molding machine's injection-shifting assembly according to claim 3, characterized in that: There are multiple elastic members, and the elastic forces of the elastic members are equal when the deformation amounts are the same.

5. The injection molding machine's injection-shifting assembly according to claim 1, characterized in that: A second thread segment and a third limiting step are provided on the circumferential side of the rod body, the second thread segment is threadedly connected to the mounting block, and the third limiting step abuts against the end surface of the mounting block.

6. The injection molding machine's injection-shifting assembly according to claim 1, characterized in that: The elastic member is a disc spring.

7. The injection molding machine's injection-shifting assembly according to claim 1, characterized in that: The injection structure includes a barrel and a driving device, one end of the barrel is provided with the nozzle, the other end of the barrel is provided on the driving device, the driving device is connected to the rod body, and the driving device is configured to slide back and forth along the extension direction of the rod body to drive the barrel to approach or move away from the template relative to the rod body; The rod body is provided with two, and the two rod bodies are respectively located at two opposite sides of the barrel.

8. The injection molding machine's injection-shifting assembly according to claim 2, characterized in that: The plurality of elastic members are arranged in a ring shape with the rod body as the center to form an elastic member group, and the elastic member group includes at least one elastic member.

9. The injection molding machine's injection-shifting assembly according to claim 2 or 8, characterized in that: The plurality of step grooves are arranged in a ring shape with the rod body as the center to form a step groove group; There are at least two step groove groups, and two adjacent step groove groups are arranged in inner and outer rings; The step grooves in two adjacent step groove groups are staggered with each other.

10. An injection molding machine, characterized in that: The injection molding machine comprises: an injection-shifting assembly of the injection molding machine according to any one of claims 1 to 9.

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