Injection molding machine based on eliminating template deformation transmission to guide pillar

Abstract

The utility model relates to the technical fields of injection molding machine, put forward a kind of injection molding machine based on eliminating template deformation transmission to guide pillar, including template and guide pillar installed on template, template is equipped with the mounting bracket for supporting guide pillar and limiting guide pillar up-down or front-back direction movement, mounting bracket one end is equipped with the guide pillar limiting piece for cooperating its limitation guide pillar up-down or front-back direction movement;Guide pillar and guide pillar limiting piece are all installed on mounting bracket, and guide pillar limiting piece is sleeved in guide pillar outside;When the template occurs stress deformation and transmits to guide pillar limiting piece, the displacement generated by the cooperation between guide pillar and guide pillar limiting piece is released on the up-down or front-back deformation of guide pillar, so that the axis of guide pillar is not affected by the stress deformation of template during the stress deformation of template, the effect of eliminating template deformation transmission to guide pillar is realized.The design avoids the stress transmission of template to guide pillar, and the structure is simple, without additional setting connecting component, reduces manufacturing cost, and the diameter of guide pillar does not need to be designed too large.

Description

Technical Field

[0001] This utility model relates to the technical field of injection molding machines, specifically to an injection molding machine based on eliminating the transfer of template deformation to guide pillars. Background Technology

[0002] It is an unavoidable fact that the mold plate of an injection molding machine will deform under stress. The deformation of the mold plate will be transmitted to the parts installed on the mold plate, which has always been a pain point in the industry. How to reduce the deformation of the mold plate or how to reduce the impact of the deformation of the mold plate on the parts installed on the mold plate is a direction that the industry has been exploring. At present, the industry mainly uses the following methods for guide pillars installed on the mold plate: (1) Mold plate integrated guide pillar mounting bracket, such as Figure 1 As shown, many manufacturers currently reduce the deformation of the template by making the template thicker, thus reducing the deformation transmitted to the guide column mounting frame. However, this method cannot prevent the template deformation from being transmitted to the guide column mounting frame. On the other hand, making the template thicker also increases the cost. (2) The extension end of the guide column has an independent guide column support, which is then connected to the template through connecting parts. This method involves a large number of installation parts, and the connection between the template and the guide column support is prone to breakage. (3) The diameter of the guide column is increased to reduce the influence of the template deformation on its own deformation. This method results in higher cost of guide column parts, and the supporting parts structure occupies a large space. The above mainstream methods only reduce the influence of the template deformation on the guide column, but cannot completely eliminate it. Utility Model Content

[0003] This invention proposes an injection molding machine design that eliminates the transmission of template deformation to the guide pillar. The design incorporates a mounting bracket and a guide pillar limiting component, effectively eliminating the impact of template deformation on the guide pillar. While the mounting bracket supports the guide pillar, the guide pillar limiting component restricts its vertical or horizontal movement. When the template deforms under stress, the mating structure between the guide pillar and the limiting component releases the guide pillar's displacement, preventing its axis from being affected by template deformation. This design avoids the transmission of template stress to the guide pillar, has a simple structure, requires no additional connecting components, reduces manufacturing costs, and eliminates the need for excessively large guide pillar diameters.

[0004] An injection molding machine designed for this purpose, based on eliminating the transmission of template deformation to the guide pillar, includes a template and a guide pillar mounted on the template. The template is provided with a mounting frame for supporting the guide pillar and restricting the vertical or horizontal movement of the guide pillar. One end of the mounting frame is provided with a guide pillar limiting member for cooperating with it to restrict the vertical or horizontal movement of the guide pillar.

[0005] Both the guide post and the guide post limiting component are mounted on the mounting bracket, and the guide post limiting component is sleeved on the outside of the guide post;

[0006] When the template is subjected to stress and deformation, the stress is transmitted to the guide post limiting component. The displacement caused by the vertical or horizontal deformation of the guide post is released at the joint between the guide post and the guide post limiting component. This ensures that the axis of the guide post is not affected by the stress deformation of the template during the template deformation process, thereby eliminating the transmission of template deformation to the guide post.

[0007] The guide post and the guide post limiting member are provided with a limiting moving pair to form a guiding function. During the deformation of the template under force, the guide post limiting member is always locked on the template mounting frame. The guide post limiting member of the mounting frame and the guide post move relative to each other through the limiting moving pair, so as to release the displacement caused by the vertical or horizontal deformation of the guide post during the deformation of the template under force.

[0008] The guide post and the guide post limiting member are provided with a protrusion and a recessed groove to form a limiting moving pair. When the guide post and the guide post limiting member are assembled, the protrusion is limited on the recessed groove, and there is a gap between the protrusion and the recessed groove, so that the mounting frame can release the constraint on the guide post in the up-down or back-forward direction during the deformation of the template under force.

[0009] The top of the recessed groove is provided with a stop block for limiting the outside of the guide post. The stop block is provided with a notch that communicates with the recessed groove so that the side of the recessed groove is open.

[0010] The mounting bracket is provided with a mounting cavity. The protrusions and recesses between the guide post and the guide post limiting member are located on the mounting cavity. A locking and fixing member is provided on the outside of the mounting cavity to prevent the guide post limiting member from detaching from the mounting cavity.

[0011] The guide post limiting component is provided with a limiting slot for installing locking fasteners.

[0012] The protrusion is provided on the end of the guide post, and the recess is provided on the guide post limiting member. One end of the guide post is inserted into the template, and the protrusion of the guide post is inserted into the mounting cavity and limited in the recess of the guide post limiting member.

[0013] When the template undergoes deformation under stress, the guide post and the mounting groove of the template mounting frame will be displaced in the vertical or horizontal direction.

[0014] The template is equipped with a pull rod, which pulls the template during the injection molding machine's operation to cause the template to deform under stress.

[0015] The template is provided with a thrust seat that cooperates with the guide post. The guide post passes through the thrust seat. The thrust seat is provided with a hinge pin that is hinged to the corresponding accessories of the injection molding machine, so that the thrust seat can only move along the axis of the guide post, and the thrust seat is limited to move between the inner side of the template and the mounting frame.

[0016] The thrust seat is provided with a guide post sleeve that cooperates with the guide post, and the guide post sleeve is fitted on the outside of the guide post.

[0017] The beneficial technical effects of this utility model are as follows:

[0018] The coordinated design of the mounting bracket and guide post limiting components effectively eliminates the impact of template deformation on the guide posts. While the mounting bracket supports the guide posts, the guide post limiting components restrict their vertical or horizontal movement. When the template deforms under stress, the mating structure between the guide post and the limiting components releases the guide post's displacement, ensuring that the guide post's axis is not affected by the template's deformation. This design prevents the template's stress from being transmitted to the guide posts, and its simple structure eliminates the need for additional connecting components, reducing manufacturing costs. Furthermore, the guide post diameter does not need to be excessively large.

[0019] The rigid design of the template no longer needs to consider the impact of template deformation on the guide pillars. The template thickness and volume in injection molding machines of the same tonnage can be designed to be smaller, and the cost of template parts will be reduced.

[0020] The reduced friction between the guide column and the thrust seat leads to a smaller thrust, resulting in lower energy consumption, greater energy efficiency, and longer component lifespan.

[0021] Relieving the horizontal strain on the front and rear of the thrust seat, the thrust seat is only subjected to the axial load of the guide column, making the movement smoother and the machine noise level lower. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the template and guide post installation structure in the prior art.

[0023] Figure 2 This is a schematic diagram of the template and guide post installation structure according to an embodiment of the present invention.

[0024] Figure 3 This is a three-dimensional cross-sectional schematic diagram of the template and guide post installation structure according to an embodiment of the present invention.

[0025] Figure 4 This is a schematic diagram of the cross-sectional structure of the guide post and the guide post limiting member in one embodiment of the present invention.

[0026] Figure 5 This is a schematic diagram of the installation structure of the template and guide post in another position according to an embodiment of this utility model.

[0027] Figure 6 This is a schematic diagram of the planar orientation of the template and guide post installation structure according to an embodiment of the present invention.

[0028] Figure 7 for Figure 6 Enlarged view of point A in the middle.

[0029] Figure 8 This is a three-dimensional structural diagram of a guide post limiting component according to an embodiment of the present invention. Detailed Implementation

[0030] The technical solutions of the present utility model will be clearly and completely described below with reference to the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. In order to make the above-mentioned objects, features and advantages of the present application more apparent and understandable, many specific details are set forth in the following description in order to provide a full understanding of the present application. However, the present application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without departing from the spirit of the present application. Therefore, the present application is not limited to the specific embodiments disclosed below.

[0031] See Figures 2-8 An injection molding machine based on eliminating the transmission of template deformation to the guide post includes a template 1 and a guide post 2 installed on the template 1. The template 1 is provided with a mounting frame 7 for supporting the guide post 2 and restricting the vertical or horizontal movement of the guide post 2. One end of the mounting frame 7 is provided with a guide post limiting member 5 for cooperating with it to restrict the vertical or horizontal movement of the guide post 2.

[0032] Both the guide post 2 and the guide post limiting member 5 are installed on the mounting bracket 7, and the guide post limiting member 5 is sleeved on the outside of the guide post 2;

[0033] When the template 1 is subjected to force and deformation, the force is transmitted to the guide post limiting member 5. The displacement caused by the vertical or horizontal deformation of the guide post 2 is released at the joint between the guide post 2 and the guide post limiting member 5. This ensures that the axis of the guide post 2 is not affected by the force deformation of the template 1 during the force deformation process, thereby eliminating the transmission of the deformation of the template 1 to the guide post 2.

[0034] The coordinated design of the mounting bracket 7 and the guide post limiting component 5 effectively eliminates the impact of template 1 deformation on the guide post 2. While the mounting bracket 7 supports the guide post 2, the guide post limiting component 5 restricts the vertical or horizontal movement of the guide post 2. When the template 1 is deformed by force, the mating structure between the guide post 2 and the guide post limiting component 5 can release the displacement of the guide post 2, ensuring that the axis of the guide post 2 is not affected by the deformation of the template 1. This design avoids the transmission of force from the template 1 to the guide post 2, and its simple structure eliminates the need for additional connecting components, reducing manufacturing costs. Furthermore, the diameter of the guide post 2 does not need to be excessively large.

[0035] Although the design of the guide post limiting component 5 restricts the vertical or horizontal movement of the guide post 2, the guide post limiting component 5 and the guide post 2 are in a clearance fit. When the template 1 is deformed by force, the guide post 2 can still have a certain amount of displacement. The limitation of the guide post limiting component 5 is to prevent the guide post 2 from detaching from the template 1 mounting frame 7 during the displacement process.

[0036] The guide post 2 and the guide post limiting member 5 are provided with a limiting moving pair 8 to form a guiding function. During the deformation of the template 1 under force, the guide post limiting member 5 is always locked on the mounting frame 7 of the template 1. The guide post limiting member 5 and the guide post 2 of the mounting frame 7 move relative to each other through the limiting moving pair 8, so as to release the displacement caused by the vertical or horizontal deformation of the guide post 2 during the deformation of the template 1 under force.

[0037] The design of the limiting sliding joint 8 allows for a relatively movable fit between the guide post limiting member 5 and the guide post 2. When the template 1 deforms, the guide post limiting member 5 is fixed on the mounting bracket 7, while the guide post 2 is finely adjusted in position via the limiting sliding joint 8, thereby eliminating deformation transmission. This structure reduces the additional stress on the guide post 2, lowers frictional resistance, and makes the movement of the thrust seat 3 smoother.

[0038] The guide post 2 and the guide post limiting member 5 are provided with a protrusion 9 and a recess 10 forming a limiting moving pair 8. When the guide post 2 and the guide post limiting member 5 are assembled, the protrusion 9 is limited on the recess 10, and there is a gap between the protrusion 9 and the recess 10, so that the mounting frame 7 can release the constraint on the guide post 2 in the up-down or back-forward direction during the deformation of the template 1 under force.

[0039] See Figures 3-6 The guide post limiting component 5 is fixed on the mounting bracket 7 of the template 1; the concave structure (recessed groove 10) of the guide post limiting component 5 and the convex structure (protrusion 9) of the guide post 2 form a limiting moving pair 8 with guiding function. In the front-back or up-down horizontal direction, the guide post 2 and the guide post limiting component 5 can move relative to each other without constraint.

[0040] The mating structure of the protrusion 9 and the recessed groove 10 forms a limiting and moving pair 8 between the guide post 2 and the guide post limiting member 5, with a reasonable gap reserved between them. When the template 1 is deformed by force, the protrusion 9 can move slightly within the recessed groove 10, so that the guide post 2 is not directly affected by the deformation transmission of the template 1. This design not only ensures the positioning accuracy of the guide post 2, but also avoids the stress concentration problem caused by rigid connection, thus improving the reliability of the overall structure.

[0041] The top of the recessed groove 10 is provided with a stop block 11 for limiting the outside of the guide post 2. The stop block 11 is provided with a notch that communicates with the recessed groove 10 so that the side of the recessed groove 10 is open.

[0042] The combination of the stop block 11 and the notch structure restricts the outer position of the guide post 2 while allowing the recessed groove 10 to open laterally, providing deformation compensation space for the guide post 2. This design ensures the stability of the guide post 2 under normal operating conditions and releases stress when the template 1 deforms, preventing the guide post 2 from generating additional load due to forced constraint, thereby reducing the risk of wear.

[0043] The mounting frame 7 is provided with a mounting cavity 15. The protrusion 9 and the recess 10 between the guide post 2 and the guide post limiting member 5 are both located on the mounting cavity 15. A locking and fixing member 14 is provided on the outside of the mounting cavity 15 to prevent the guide post limiting member 5 from being dislodged from the mounting cavity 15.

[0044] The mounting cavity 15 provides a stable installation environment for the guide post 2 and the guide post limiting member 5, while the locking fastener 14 prevents the guide post limiting member 5 from disengaging, ensuring structural safety. This design makes the installation of the guide post 2 more stable, while facilitating the maintenance and replacement of the guide post limiting member 5, thus improving the maintainability of the equipment.

[0045] In this embodiment, the locking fastener 14 is provided with screw holes, and the locking fastener 14 is locked to the bottom of the mounting bracket 7 by bolts.

[0046] The guide post limiting member 5 is provided with a limiting slot 13 for installing the locking and fixing member 14.

[0047] The protrusion 9 is provided on the end of the guide post 2, and the recessed groove 10 is provided on the guide post limiting member 5. One end of the guide post 2 is inserted into the template 1, and the protrusion 9 of the guide post 2 is inserted into the mounting cavity 15 and limited in the recessed groove 10 of the guide post limiting member 5.

[0048] When the template 1 undergoes deformation under stress, the guide post 2 and the mounting cavity 15 of the template 1 mounting frame 7 will be displaced in the vertical or front-back direction.

[0049] The protrusion 9 is integrated into the end of the guide post 2, simplifying the assembly process and improving structural strength. When the template 1 deforms under stress, the guide post 2 can be slightly adjusted within the mounting groove 15, avoiding stress concentration caused by forced constraints. This design ensures both the positioning accuracy of the guide post 2 and improves the overall deformation resistance of the guide post 2 structure.

[0050] The template 1 is provided with a pull rod 6, which pulls the template 1 during the operation of the injection molding machine to cause the template 1 to undergo stress deformation.

[0051] During the operation of the injection molding machine, the tie rod 6 applies tension to the template 1, while the structural design of the mounting bracket 7 and the guide post limiting component 5 prevents the tension of the tie rod 6 from affecting the guide post 2. This design optimizes the force transmission path, ensuring that the deformation of the template 1 does not directly act on the guide post 2, thus improving the stability and motion accuracy of the system.

[0052] The template 1 is provided with a thrust seat 3 that cooperates with the guide post 2. The guide post 2 passes through the thrust seat 3. The thrust seat 3 is provided with a hinge pin 4 that is hinged to the corresponding accessories of the injection molding machine, so that the thrust seat 3 can only move along the axis of the guide post 2, and the thrust seat 3 is limited to move between the inner side of the template 1 and the mounting frame 7.

[0053] The thrust seat 3 is guided by the guide post 2 and moves only axially with the help of the hinge pin 4, avoiding interference from lateral forces. The structural design of the mounting bracket 7 further isolates the influence of the deformation of the template 1 on the thrust seat 3, making the movement of the thrust seat 3 more stable, reducing frictional loss between the thrust seat 3 and the guide post 2, and reducing noise.

[0054] The thrust seat 3 is provided with a guide post sleeve 12 that cooperates with the guide post 2, and the guide post sleeve 12 is sleeved on the outside of the guide post 2.

[0055] In this embodiment, the template 1 is equipped with four tie rods 6. The template 1 deforms under the tension of the four tie rods 6. This embodiment eliminates the transmission of deformation from the template 1 to the guide column 2 by releasing the constraint of the template 1 mounting frame 7 on the guide column 2 in the vertical or horizontal direction. Throughout the structure, the template 1 mounting frame 7 supports and restricts the vertical or horizontal movement of the guide column 2. The hinge pin 4 restricts the thrust seat 3 to move only along the axis of the guide column 2. The guide column limiting member 5, in conjunction with the template 1 mounting frame 7, restricts the vertical or horizontal movement of the guide column 2. When the template 1 deforms under the tension of the tie rods 6 and the deformation is transmitted to the guide column limiting member 5, the template 1 mounting frame 7 releases the displacement caused by the vertical or horizontal deformation of the guide column 2 through the slot structure on the guide column 2. This ensures that the axis of the guide column 2 is not affected by the deformation of the template 1 throughout the process, thus eliminating the transmission of deformation from the template 1 to the guide column 2.

[0056] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. An injection molding machine based on eliminating the transfer of template deformation to guide pillars, comprising a template (1) and guide pillars (2) mounted on the template (1), characterized in that: The template (1) is provided with a mounting frame (7) for supporting the guide column (2) and restricting the guide column (2) from moving up and down or forward and backward. One end of the mounting frame (7) is provided with a guide column limiting member (5) for cooperating with it to restrict the guide column (2) from moving up and down or forward and backward. The guide post (2) and the guide post limiting member (5) are both installed on the mounting bracket (7), and the guide post limiting member (5) is sleeved on the outside of the guide post (2); When the template (1) is subjected to force deformation and the force is transmitted to the guide post limiting member (5), the displacement caused by the up-down or back-and-forth deformation of the guide post (2) is released at the joint between the guide post (2) and the guide post limiting member (5), so that the axis of the guide post (2) will not be affected by the force deformation of the template (1) during the process of the template (1) being subjected to force deformation, thereby eliminating the effect of the deformation of the template (1) being transmitted to the guide post (2).

2. The injection molding machine based on eliminating template deformation transmission to guide pillars according to claim 1, characterized in that: The guide post (2) and the guide post limiting member (5) are provided with a limiting moving pair (8) to form a guiding function. During the deformation of the template (1) under force, the guide post limiting member (5) is always locked on the mounting frame (7) of the template (1). The guide post limiting member (5) of the mounting frame (7) and the guide post (2) move relative to each other through the limiting moving pair (8) so as to release the displacement generated by the up-down or back-and-forth deformation of the guide post (2) during the deformation of the template (1) under force.

3. The injection molding machine based on eliminating template deformation transmission to guide pillars according to claim 1, characterized in that: The guide post (2) and the guide post limiting member (5) are provided with a protrusion (9) and a recess (10) forming a limiting moving pair (8). When the guide post (2) and the guide post limiting member (5) are assembled, the protrusion (9) is limited on the recess (10), and there is a gap between the protrusion (9) and the recess (10) so that the mounting frame (7) can release the constraint on the guide post (2) in the up-down or front-back direction during the deformation of the template (1) under stress.

4. The injection molding machine based on eliminating template deformation transmission to guide pillars according to claim 3, characterized in that: The top of the recessed groove (10) is provided with a stop block (11) for limiting the outside of the guide post (2). The stop block (11) is provided with a notch that connects to the recessed groove (10) so that the side of the recessed groove (10) is open.

5. The injection molding machine based on eliminating template deformation transmission to guide pillars according to claim 3, characterized in that: The mounting bracket (7) is provided with a mounting cavity (15). The protrusion (9) and the recess (10) between the guide post (2) and the guide post limiting member (5) are both located on the mounting cavity (15). The outside of the mounting cavity (15) is provided with a locking and fixing member (14) to prevent the guide post limiting member (5) from being dislodged from the mounting cavity (15).

6. The injection molding machine based on eliminating template deformation transmission to guide pillars according to claim 5, characterized in that: The guide post limiting member (5) is provided with a limiting slot (13) for installing the locking fastener (14).

7. The injection molding machine based on eliminating template deformation transmission to guide pillars according to claim 5, characterized in that: The protrusion (9) is provided on the end of the guide post (2), and the recess (10) is provided on the guide post limiting member (5). One end of the guide post (2) is inserted into the template (1), and the protrusion (9) of the guide post (2) is inserted into the mounting cavity (15) and limited in the recess (10) of the guide post limiting member (5). When the template (1) is subjected to stress and deformation, the guide post (2) and the mounting cavity (15) of the template (1) mounting frame (7) are displaced in the vertical or front-back direction.

8. The injection molding machine based on eliminating template deformation transmission to guide pillars according to claim 1, characterized in that: The template (1) is provided with a pull rod (6). The pull rod (6) pulls the template (1) during the operation of the injection molding machine so that the template (1) undergoes stress deformation.

9. The injection molding machine based on eliminating template deformation transmission to guide pillars according to claim 1, characterized in that: The template (1) is provided with a thrust seat (3) that cooperates with the guide post (2). The guide post (2) passes through the thrust seat (3). The thrust seat (3) is provided with a hinge pin (4) that is hinged to the corresponding accessories of the injection molding machine, so that the thrust seat (3) can only move along the axis of the guide post (2), and the thrust seat (3) is limited to move between the inner side of the template (1) and the mounting frame (7).

10. The injection molding machine based on eliminating template deformation transmission to guide pillars according to claim 9, characterized in that: The thrust seat (3) is provided with a guide post sleeve (12) that cooperates with the guide post (2), and the guide post sleeve (12) is sleeved on the outside of the guide post (2).

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