Injection molding machine capable of eliminating template deformation and transmitting template deformation to guide pillar and application method of injection molding machine

Abstract

The invention relates to the technical field of injection molding machines, and provides an injection molding machine capable of eliminating template deformation and transmitting the template deformation to a guide pillar and an application method thereof.The injection molding machine comprises a template and the guide pillar installed on the template, and the template is provided with an installation frame used for supporting the guide pillar and limiting the guide pillar to move up and down or front and back; one end of the mounting frame is provided with a guide pillar limiting piece matched with the mounting frame to limit the up-and-down or front-and-back movement of the guide pillar; the guide column and the guide column limiting piece are both installed on the installation frame, and the guide column limiting piece is arranged on the outer side of the guide column in a sleeving mode. When the template is stressed and deformed and is transmitted to the guide pillar limiting piece, displacement generated by up-and-down or front-and-back deformation of the guide pillar is released at the matching position between the guide pillar and the guide pillar limiting piece, so that the axis of the guide pillar is not influenced by stressed deformation of the template in the stressed deformation process of the template, and the deformation of the template is avoided. The effect of preventing the deformation of the template from being transmitted to the guide pillar is achieved. According to the design, the stress of the template is prevented from being transmitted to the guide pillar, the structure is simple, a connecting part does not need to be additionally arranged, the manufacturing cost is reduced, and the diameter of the guide pillar does not need to be designed to be too large.

Description

Technical Field

[0001] The present invention relates to the technical field of injection molding machines, and in particular to an injection molding machine based on eliminating the deformation of a template from being transmitted to a guide column and an application method thereof. Background Art

[0002] It is an inevitable fact that the template of the injection molding machine will deform under stress. The deformation of the template will be transmitted to the parts installed on the template, which has always been a pain point in the industry. How to reduce the deformation of the template or how to reduce the impact of the deformation of the template on the parts installed on the template is a direction that the industry has been exploring. At present, the industry has the following methods for installing guide columns on the template: (1) Template integrated guide column mounting frame such as Figure 1 As shown in the figure, many manufacturers currently make the template thicker to reduce the deformation of the template and thus reduce the deformation transmitted to the guide column mounting frame. However, this method cannot prevent the deformation of the template from being transmitted to the guide column mounting frame. On the other hand, the cost of making the template thicker is also relatively high; (2) There is an independent guide column support at the extension end of the guide column, which is then connected to the template through a connecting component. This method requires a large number of installed parts, and the parts connecting the template and the guide column support are more likely to break; (3) The diameter of the guide column is increased to reduce the influence of the deformation of the template on its own deformation. This method makes the cost of the guide column parts higher, and the matching parts structure occupies a large space; the above mainstream methods only reduce the influence of the deformation of the template on the guide column, and cannot completely eliminate it. Summary of the Invention

[0003] The present invention proposes an injection molding machine and an application method thereof based on eliminating the transmission of template deformation to the guide column. The matching design of the mounting frame and the guide column limiter effectively eliminates the influence of template deformation on the guide column. While the mounting frame supports the guide column, the guide column limiter restricts the up and down or forward and backward movement of the guide column. When the template is deformed by force, the matching structure between the guide column and the guide column limiter can release the displacement of the guide column, so that the axis of the guide column will not be affected by the deformation caused by the force of the template. This design avoids the transmission of the template's force to the guide column, and has a simple structure. It does not require additional connecting parts, which reduces manufacturing costs, and the guide column diameter does not need to be designed to be too large.

[0004] An injection molding machine designed for this purpose, which is based on eliminating the transmission of template deformation to guide pillars, includes a template and guide pillars mounted on the template. The template is provided with a mounting frame for supporting the guide pillars and limiting the vertical or forward and backward movement of the guide pillars. One end of the mounting frame is provided with a guide pillar limiter for cooperating with it to limit the vertical or forward and backward movement of the guide pillars. The guide post and the guide post limiter are both installed on the mounting frame, and the guide post limiter is sleeved on the outside of the guide post; When the template is deformed by force and transmitted to the guide column limiter, the fitting between the guide column and the guide column limiter releases the displacement caused by the up and down or front and back deformation of the guide column, so that during the process of the template being deformed by force, the axis of the guide column will not be affected by the deformation of the template, thereby eliminating the effect of the template deformation being transmitted to the guide column.

[0005] A limiting movable pair is provided between the guide post and the guide post limiter to form a guiding function. During the process of the template being subjected to force and deformation, the guide post limiter is always locked on the mounting frame of the template. The guide post limiter of the mounting frame and the guide post form a relative movement through the limiting movable pair to release the displacement caused by the up and down or front and back deformation of the guide post during the process of the template being subjected to force and deformation.

[0006] A protrusion and a recessed groove forming a limiting movable pair are provided between the guide post and the guide post limiting piece. When the guide post and the guide post limiting piece are assembled, the protrusion is limited on the recessed groove, and there is a gap between the protrusion and the recessed groove, so that when the template is deformed under force, the mounting frame can release the constraints on the guide post in the up and down or front and back directions.

[0007] A stopper for limiting the outer side of the guide column is provided on the top of the concave groove, and a notch communicating with the concave groove is provided on the stopper so that the side of the concave groove is open.

[0008] The mounting frame is provided with a mounting groove cavity, the protrusion and the recessed groove between the guide post and the guide post limiter are both located on the mounting groove cavity, and a locking fixing piece is provided on the outside of the mounting groove cavity to prevent the guide post limiter from escaping from the mounting groove cavity.

[0009] The guide post limiting piece is provided with a limiting slot for installing a locking fixing piece.

[0010] The protrusion is provided on the end of the guide post, the concave groove is provided on the guide post limiter, one end of the guide post is inserted into the template, the protrusion of the guide post is inserted into the installation groove cavity and limited on the concave groove of the guide post limiter; When the template is deformed by force, displacement occurs between the guide column and the installation groove cavity of the template installation frame in the up-down or front-back direction.

[0011] The template is provided with a pull rod, which pulls the template during the working process of the injection molding machine to cause the template to be deformed by force.

[0012] The template is provided with a thrust seat that cooperates with the guide column. The guide column is inserted into the thrust seat. The thrust seat is provided with a hinge pin hinged to the corresponding accessories of the injection molding machine so that the thrust seat can only move along the axis of the guide column, and the thrust seat is limited to move between the inner side of the template and the mounting frame.

[0013] The thrust seat is provided with a guide post sleeve matched with the guide post, and the guide post sleeve is arranged on the outside of the guide post.

[0014] An application method of the injection molding machine based on eliminating the transmission of template deformation to the guide column as described above, A guide column limiter for releasing the guide column movement constraint is provided on the template mounting frame, and a limit moving pair is provided between the guide column limiter and the guide column, so that when the template is transferred to the mounting frame during the force deformation process, one end of the guide column is limited and moved between the mounting frame and the guide column limiter through the limit moving pair, thereby eliminating the template deformation from being transferred to the guide column.

[0015] The beneficial technical effects of the present invention are as follows: The coordinated design of the mounting bracket and guide post stopper effectively eliminates the impact of template deformation on the guide posts. While the mounting bracket supports the guide posts, the guide post stopper restricts their vertical and forward and backward movement. When the template deforms under stress, the coordinated structure between the guide posts and the guide post stopper releases their displacement, ensuring that the guide post axis is not affected by the template's deformation. This design prevents the transfer of template forces to the guide posts, maintains a simple structure, and eliminates the need for additional connecting components, reducing manufacturing costs. It also eliminates the need for overly large guide post diameters.

[0016] The rigidity design of the template no longer needs to consider the impact of template deformation on the guide pillar. The thickness and volume of the template in the same tonnage injection molding machine can be designed to be smaller, and the cost of template parts will be reduced. The friction between the guide column and the thrust seat is reduced, the thrust is reduced, the machine energy consumption is low and energy-saving, and the life of parts is extended; The horizontal strain force in the front and rear directions of the thrust seat is relieved, and the thrust seat is only subjected to the axial load of the guide column, so the movement becomes smoother and the machine noise value is lower. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 Schematic diagram of the template and guide column installation structure in the prior art.

[0018] Figure 2 Schematic diagram of the template and guide column installation structure according to an embodiment of the present invention.

[0019] Figure 3 It is a schematic diagram of the three-dimensional cross-sectional structure of the template and guide column installation structure according to one embodiment of the present invention.

[0020] Figure 4 The figure is a schematic cross-sectional structural diagram of the cooperation between the guide post and the guide post limiter according to an embodiment of the present invention.

[0021] Figure 5 This is a schematic diagram of the installation structure of the template and guide pillars in another orientation according to an embodiment of the present invention.

[0022] Figure 6 This is a schematic diagram of the planar orientation structure of the template and guide column installation structure according to an embodiment of the present invention.

[0023] Figure 7 for Figure 6 Enlarged view of point A in the middle.

[0024] Figure 8 Schematic diagram of the three-dimensional structure of a guide post limiter according to an embodiment of the present invention. DETAILED DESCRIPTION

[0025] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. In order to make the above-mentioned objects, features and advantages of the present application more obvious and easy to understand, many specific details are set forth in the following description to facilitate 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 violating the connotation of the present application. Therefore, the present application is not limited to the specific embodiments disclosed below.

[0026] See also Figure 2-Figure 8 An injection molding machine based on eliminating the transmission of template deformation to the guide column includes a template 1 and a guide column 2 mounted on the template 1. The template 1 is provided with a mounting bracket 7 for supporting the guide column 2 and limiting the vertical or front-to-back movement of the guide column 2. One end of the mounting bracket 7 is provided with a guide column limiter 5 for cooperating with it to limit the vertical or front-to-back movement of the guide column 2. The guide post 2 and the guide post stopper 5 are both mounted on the mounting frame 7, and the guide post stopper 5 is sleeved on the outside of the guide post 2; When the template 1 is deformed by force and the force is transmitted to the guide column limiter 5, the displacement caused by the up and down or front and back deformation of the guide column 2 is released at the fitting point between the guide column 2 and the guide column limiter 5, so that the axis of the guide column 2 will not be affected by the force deformation of the template 1 during the process of the template 1 being deformed by force, thereby eliminating the effect of the deformation of the template 1 being transmitted to the guide column 2.

[0027] The coordinated design of the mounting bracket 7 and the guide post stopper 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 stopper 5 restricts its vertical and forward and backward movement. When the template 1 is deformed by force, the coordinated structure between the guide post 2 and the guide post stopper 5 releases 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 prevents the transfer 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. It also eliminates the need to oversize the diameter of the guide post 2.

[0028] Although the design of the guide post limiter 5 limits the up and down or forward and backward movement of the guide post 2, there is a gap between the guide post limiter 5 and the guide post 2. When the template 1 is deformed by force, the guide post 2 can still have a certain amount of movable displacement. The limitation of the guide post limiter 5 is to prevent the guide post 2 from detaching from the mounting frame 7 of the template 1 during the displacement process.

[0029] A limiting movable pair 8 for forming a guiding function is provided between the guide column 2 and the guide column limiter 5. During the process of the template 1 being subjected to force and deformation, the guide column limiter 5 is always locked on the mounting frame 7 of the template 1. The guide column limiter 5 of the mounting frame 7 and the guide column 2 form a relative movement through the limiting movable pair 8 to release the displacement caused by the up and down or front and back deformation of the guide column 2 during the process of the template 1 being subjected to force and deformation.

[0030] The design of the limited movable pair 8 creates a relatively movable fit between the guide post limiter 5 and the guide post 2. When the template 1 deforms, the guide post limiter 5 is fixed to the mounting bracket 7, while the guide post 2 fine-tunes its position via the limited movable pair 8, thereby eliminating deformation transmission. This structure reduces additional stress on the guide post 2 and frictional resistance, ensuring smoother movement of the thrust seat 3.

[0031] A protrusion 9 and a recessed groove 10 forming a limiting movable pair 8 are provided between the guide column 2 and the guide column limiting member 5. When the guide column 2 and the guide column limiting member 5 are assembled, the protrusion 9 is limited on the recessed groove 10, and there is a gap between the protrusion 9 and the recessed groove 10, so that when the template 1 is subjected to force and deformation, the mounting frame 7 can release the constraints on the guide column 2 in the up and down or front and back directions.

[0032] See also Figure 3-Figure 6 The guide column limiter 5 is fixed on the mounting frame 7 of the template 1; the concave structure (concave groove 10) of the guide column limiter 5 and the convex structure (protrusion 9) of the guide column 2 form a limiting movable pair 8 with a guiding function. In the front and back or up and down horizontal directions, the guide column 2 and the guide column limiter 5 can move relative to each other without constraint.

[0033] The mating structure of protrusion 9 and recessed groove 10 forms a limited movable pair 8 between guide post 2 and guide post stopper 5, leaving a reasonable gap between them. When template 1 is deformed by force, protrusion 9 can move slightly within recessed groove 10, protecting guide post 2 from the direct impact of deformation transmitted by template 1. This design ensures the positioning accuracy of guide post 2 while avoiding stress concentration caused by rigid connection, thereby improving the reliability of the overall structure.

[0034] A stopper 11 is provided on the top of the recessed groove 10 for limiting the outer side of the guide pillar 2 . A notch is provided on the stopper 11 to communicate with the recessed groove 10 so that the side of the recessed groove 10 is open.

[0035] The combination of the stopper 11 and the notch structure restricts the outer position of the guide post 2 while allowing the recessed slot 10 to open laterally, providing deformation compensation space for the guide post 2. This design not only ensures the stability of the guide post 2 under normal working conditions, but also relieves stress when the template 1 deforms, avoiding additional load on the guide post 2 due to forced constraints, thereby reducing the risk of wear.

[0036] The mounting frame 7 is provided with a mounting groove 11, and the protrusion 9 and the recessed groove 10 between the guide column 2 and the guide column limiter 5 are both located on the mounting groove 11. A locking fixing member 12 is provided on the outside of the mounting groove 11 to prevent the guide column limiter 5 from escaping from the mounting groove 11.

[0037] The mounting groove 11 provides a stable mounting environment for the guide post 2 and the guide post stopper 5. The locking fixture 12 prevents the guide post stopper 5 from disengaging, ensuring structural safety. This design makes the installation of the guide post 2 more stable and facilitates the maintenance and replacement of the guide post stopper 5, improving the maintainability of the equipment.

[0038] In this embodiment, a screw hole is provided on the locking fixture 12 , and the locking fixture 12 is locked to the bottom of the mounting bracket 7 by means of bolts.

[0039] The guide post limiting member 5 is provided with a limiting slot 13 for installing the locking fixing member 12 .

[0040] The protrusion 9 is provided on the end of the guide post 2, and the concave groove 10 is provided on the guide post limiter 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 installation groove cavity 11 and limited on the concave groove 10 of the guide post limiter 5; When the template 1 is deformed by force, displacement occurs between the guide column 2 and the mounting groove 11 of the template 1 mounting frame 7 in the up-down or front-back directions.

[0041] 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 is deformed by force, the guide post 2 can be slightly adjusted within the mounting groove 11, avoiding stress concentration caused by forced constraints. This design ensures the positioning accuracy of the guide post 2 while improving the overall deformation resistance of the guide post 2.

[0042] 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 be deformed by force.

[0043] During operation of the injection molding machine, tie rod 6 exerts tension on template 1. However, the structural design of mounting bracket 7 and guide post stopper 5 prevents the tension of tie rod 6 from affecting guide posts 2. This design optimizes the force transmission path, preventing deformation of template 1 from directly affecting guide posts 2, and improving system stability and motion accuracy.

[0044] The template 1 is provided with a thrust seat 3 that cooperates with the guide column 2. The guide column 2 is inserted into 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 column 2, and the thrust seat 3 is limited to move between the inner side of the template 1 and the mounting frame 7.

[0045] 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 impact of the deformation of the template 1 on the thrust seat 3, making the movement of the thrust seat 3 smoother, reducing friction loss between the thrust seat 3 and the guide post 2, and reducing noise.

[0046] 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 .

[0047] In this embodiment, four tie rods 6 are provided on the template 1. When the template 1 is subjected to the pulling force of the four tie rods 6, it will deform. In this embodiment, the template 1 is prevented from being deformed by the force transmitted to the guide column 2 by releasing the constraint of the template 1 mounting frame 7 on the guide column 2 in the vertical direction or the front and back directions. In the entire structure, the template 1 mounting frame 7 supports and restricts the vertical movement or the front and back directions 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 limiter 5 cooperates with the template 1 mounting frame 7 in the entire structure to restrict the vertical movement or the front and back directions of the guide column 2. When the template 1 is deformed by the pulling force of the tie rods 6 and the deformation is transmitted to the guide column limiter 5, the template 1 mounting frame 7 releases the displacement caused by the vertical deformation or the front and back horizontal deformation of the guide column 2 through the notch structure on the guide column 2, so that the axis of the guide column 2 will not be affected by the deformation of the template 1 during the entire process. This achieves the effect of eliminating the deformation of the template 1 from being transmitted to the guide column 2.

[0048] An application method of the injection molding machine based on eliminating the transmission of template deformation to the guide column as described above, A guide column limiter 5 for releasing the movement constraint of the guide column 2 is provided on the mounting frame 7 of the template 1, and a limiting movable pair 8 is provided between the guide column limiter 5 and the guide column 2, so that when the template 1 is transferred to the mounting frame 7 during the force deformation process, one end of the guide column 2 is limited and moved between the mounting frame 7 and the guide column limiter 5 by the limiting movable pair 8, thereby eliminating the deformation of the template 1 from being transferred to the guide column 2.

[0049] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. An injection molding machine based on eliminating the transmission of template deformation to a guide post, comprising a template (1), and a guide post (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 limiting the upward and downward or forward and backward movement of the guide column (2); one end of the mounting frame (7) is provided with a guide column limiting member (5) for cooperating with the guide column (2) to limit the upward and downward or forward and backward movement; The guide post (2) and the guide post limiting member (5) are both mounted on the mounting frame (7), and the guide post limiting member (5) is sleeved on the outside of the guide post (2); When the template (1) is deformed by force and the deformation is transmitted to the guide post limiter (5), the displacement caused by the up-down or front-back deformation of the guide post (2) is released at the joint between the guide post (2) and the guide post limiter (5), so that during the deformation of the template (1), the axis of the guide post (2) will not be affected by the deformation of the template (1), thereby eliminating the deformation of the template (1) from being transmitted to the guide post (2).

2. The injection molding machine according to claim 1, wherein: A limiting movable pair (8) for forming a guiding function is provided between the guide column (2) and the guide column limiting member (5). During the deformation process of the template (1) under stress, the guide column limiting member (5) is always locked on the mounting frame (7) of the template (1). The guide column limiting member (5) of the mounting frame (7) and the guide column (2) are relatively moved through the limiting movable pair (8) to release the displacement of the guide column (2) caused by the up-down or front-back deformation during the deformation process of the template (1) under stress.

3. The injection molding machine according to claim 1, wherein: A protrusion (9) and a recessed groove (10) forming a limiting movable pair (8) are provided between the guide post (2) and the guide post limiting member (5). When the guide post (2) and the guide post limiting member (5) are assembled, the protrusion (9) is limited on the recessed groove (10), and there is a gap between the protrusion (9) and the recessed groove (10), so that when the template (1) is deformed by force, the mounting frame (7) can release the constraint on the guide post (2) in the up and down or front and back directions.

4. The injection molding machine according to claim 3, wherein: A stopper (11) for limiting the outer side of the guide column (2) is provided at the top of the recessed groove (10), and a notch communicating with the recessed groove (10) is provided on the stopper (11) so that the side of the recessed groove (10) is open.

5. The injection molding machine according to claim 3, wherein: The mounting frame (7) is provided with a mounting groove (11), the protrusion (9) and the recessed groove (10) between the guide post (2) and the guide post limiting member (5) are both located on the mounting groove (11), and a locking fixing member (12) is provided on the outside of the mounting groove (11) for preventing the guide post limiting member (5) from escaping from the mounting groove (11).

6. The injection molding machine according to claim 5, wherein: The guide post limiting member (5) is provided with a limiting slot (13) for installing a locking fixing member (12).

7. The injection molding machine according to claim 5, wherein: The protrusion (9) is provided on the end of the guide column (2), the recessed groove (10) is provided on the guide column limiting member (5), one end of the guide column (2) is inserted into the template (1), the protrusion (9) of the guide column (2) is inserted into the installation groove cavity (11) and is limited on the recessed groove (10) of the guide column limiting member (5); When the template (1) is deformed by force, displacement in the up-down or front-back directions occurs between the guide column (2) and the mounting groove cavity (11) of the template (1) mounting frame (7).

8. The injection molding machine according to claim 1, wherein: The template (1) is provided with a pull rod (6), and the pull rod (6) pulls the template (1) during the operation of the injection molding machine to cause the template (1) to be deformed under stress.

9. The injection molding machine according to claim 1, wherein: The template (1) is provided with a thrust seat (3) that cooperates with the guide column (2), the guide column (2) is inserted into the thrust seat (3), and 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 column (2), and the thrust seat (3) is limited to move between the inner side of the template (1) and the mounting frame (7); A guide post sleeve (12) that cooperates with the guide post (2) is provided on the thrust seat (3), and the guide post sleeve (12) is sleeved on the outside of the guide post (2).

10. An application method of an injection molding machine based on eliminating the transmission of template deformation to the guide pillar as claimed in claim 1, characterized in that: A guide post limiting member (5) for releasing the movement constraint of the guide post (2) is provided on the mounting frame (7) of the template (1), and a limiting movable pair (8) is provided between the guide post limiting member (5) and the guide post (2), so that when the template (1) is transferred to the mounting frame (7) during the force deformation process, one end of the guide post (2) is limitedly moved between the mounting frame (7) and the guide post limiting member (5) through the limiting movable pair (8), thereby achieving the effect of eliminating the deformation of the template (1) from being transferred to the guide post (2).

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