Precise alignment mechanism for mold opening and closing

Abstract

The utility model discloses an accurate alignment mechanism for mold opening and closing. The accurate alignment mechanism comprises a top plate, an upper mold plate, a lower mold plate, a bottom plate, a first buckling machine assembly and a second buckling machine assembly, the first buckling machine assembly is arranged between the top plate and the upper mold plate, and the second buckling machine assembly is arranged between the upper mold plate and the lower mold plate; the first buckling machine assembly comprises a first locking block and a sliding seat, and the second buckling machine assembly comprises a second locking block, a positioning seat, a spring, a clamping column and a limiting rod. The second locking block of the second buckling machine assembly can extend into the positioning seat of the lower die plate along with the downward movement of the upper die plate, at the moment, the arc-shaped groove of the rod inserting part can overcome the elastic force of the spring and promote the clamping column to be pushed towards one side of the limiting rod, and the clamping column can be clamped with the arc-shaped groove in a limiting mode under the elastic force effect of the spring. By means of the arrangement, relative displacement between the upper mold plate and the lower mold plate can be prevented, and therefore the mold opening and closing precision of the mold is improved.

Description

Technical Field

[0001] The utility model relates to the field of molds, in particular to a precise alignment mechanism for opening and closing a mold. Background Art

[0002] A mold is a tool used to manufacture products made of materials such as plastic, metal, and rubber. It is widely used in industrial production. Through its specific shape and structure, the mold processes the raw materials into the required shape and size to achieve consistency and efficiency in large-scale production. During the production process, the opening and closing operation of the mold is a frequent and critical part of the production process. The alignment accuracy of the opening and closing mold will directly affect the production quality of the product.

[0003] In the prior art, due to the manufacturing accuracy deviation of the mold or the wear caused by long-term use, the gap between the upper mold and the lower mold may cause misalignment during the opening and closing process of the mold, resulting in loose closure of the mold and affecting the positioning accuracy. When the environmental vibration value is large, the mold is prone to loosening, which may easily affect the appearance quality of the product and even cause the product size to be unqualified, increasing the scrap rate.

[0004] Therefore, the prior art has defects and needs to be improved. Utility Model Content

[0005] The technical problem to be solved by the utility model is to provide a precise positioning mechanism for opening and closing a mold, which has a stable structure and effectively improves the positioning accuracy.

[0006] To achieve this purpose, the utility model adopts the following technical solutions: a precise alignment mechanism for opening and closing a mold, comprising a top plate, an upper mold plate, a lower mold plate, a bottom plate, a first locking assembly and a second locking assembly;

[0007] The top plate is arranged on the top of the upper template, the upper template is located above the lower template, the bottom of the lower template is connected to the bottom plate through a connecting plate, the first locking assembly is arranged between the top plate and the upper template, and the second locking assembly is arranged between the upper template and the lower template;

[0008] The first locking assembly comprises a first locking block and a slide seat, wherein the slide seat is arranged on the side wall of the upper template, the top of the first locking block is arranged on the top plate, the bottom of the first locking block has a slide portion, and the surface of the slide seat is provided with an oblique groove for the slide portion to be adapted and engaged;

[0009] The second locking assembly includes a second locking block, a positioning seat, a spring, a clamping column and a limiting rod. The second locking block is arranged on the side wall of the upper template, the positioning seat is arranged on the side wall of the lower template, the bottom of the second locking block has an insertion rod portion, and the middle of the positioning seat is provided with a slot for the insertion rod portion to extend into;

[0010] The slot is provided with inner hole channels connected thereto on both sides, the clamping column is provided on a side of the inner hole channel close to the slot, the limiting rod is provided on a side of the inner hole channel away from the slot, the spring is provided between the clamping column and the limiting rod, the spring is used to apply elastic force to the clamping column to move it toward the slot, and the side wall of the insertion rod part is provided with an arc groove for abutting against the clamping column.

[0011] By adopting the above technical solution, in the precise alignment mechanism for opening and closing the mold, positioning grooves are provided on both sides of the inclined groove, and positioning sliders adapted to be engaged with the positioning grooves are provided on both sides of the first locking block.

[0012] By adopting the above-mentioned technical solutions, in the precise alignment mechanism for opening and closing the mold, the limit rod is provided with an external thread structure, the inner hole channel of the positioning seat is provided with an internal thread structure, and the limit rod and the positioning seat are connected by threads.

[0013] By adopting the above-mentioned technical solutions, in the precise alignment mechanism for opening and closing the mold, the first latch assembly also includes a cover plate, the cover plate is connected to the side wall of the inclined groove, and the cover plate is used to cover the sliding block part in the inclined groove.

[0014] By adopting the above-mentioned technical solutions, in the precise alignment mechanism for opening and closing the mold, the number of the first latching machine components and the number of the second latching machine components are both two.

[0015] By adopting the above-mentioned technical solutions, in the precise alignment mechanism for opening and closing the mold, transition chamfer structures are provided on both sides of the bottom of the insertion rod part.

[0016] Compared with the prior art, the utility model has the following beneficial effects:

[0017] The first latch assembly of the utility model is arranged between the top plate and the upper template, and the second latch assembly is arranged between the upper template and the lower template. The lower template cooperates with the upper template to form a complete product injection chamber. The first latch assembly can prevent the top plate and the upper template from relative displacement during the opening and closing process of the mold, thereby maintaining the stability of the structure; the second latch assembly can improve the positioning accuracy of the upper template and the lower template during the opening and closing process of the mold; when the mold begins to close, the second locking block of the second latch assembly can extend into the positioning seat of the lower template as the upper template moves downward. At this time, the arc groove of the insertion rod part can overcome the elastic force of the spring and prompt the clamping column to push toward the side of the limiting rod, and the clamping column can achieve limited clamping connection with the arc groove under the action of the elastic force of the spring. Such a setting can prevent relative displacement between the upper template and the lower template, thereby improving the opening and closing accuracy of the mold. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0019] The structures, proportions, sizes, etc. illustrated in the drawings of this specification are only used to match the contents disclosed in the specification so as to facilitate understanding and reading by persons familiar with this technology. They are not used to limit the conditions under which the present invention can be implemented, and therefore have no substantive technical significance. Any structural modification, change in proportion or adjustment of size, without affecting the effects and purposes that can be achieved by the present invention, should still fall within the scope of the technical contents disclosed by the present invention.

[0020] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0021] Figure 2 This is a schematic diagram of the exploded structure of the first trigger assembly of the utility model;

[0022] Figure 3 This is a schematic diagram of the exploded structure of the second trigger assembly of the utility model;

[0023] Figure 4 It is a schematic cross-sectional structure diagram of the second trigger assembly of the present utility model. DETAILED DESCRIPTION

[0024] In order to make the utility model's purpose, features, and advantages more obvious and easy to understand, the following will be combined with the drawings in the utility model embodiments to clearly and completely describe the technical solutions in the utility model embodiments. Obviously, the embodiments described below are only part of the utility model embodiments, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0025] In the description of the present invention, it should be understood that the terms "upper", "lower", "top", "bottom", "inside", "outside", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying 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. It should be noted that when a component is considered to be "connected" to another component, it may be directly connected to the other component or there may be a centrally arranged component at the same time.

[0026] The technical solution of the utility model is further explained below with reference to the accompanying drawings and through specific implementation methods.

[0027] like Figures 1 to 4 As shown, the embodiment of the utility model provides a precise alignment mechanism for opening and closing a mold, comprising a top plate 1, an upper mold plate 2, a lower mold plate 3, a bottom plate 4, a first locking assembly 5 and a second locking assembly 6;

[0028] The top plate 1 is arranged on the top of the upper template 2, the upper template 2 is located above the lower template 3, and the bottom of the lower template 3 is connected to the bottom plate 4 through a connecting plate 31. The first latch assembly 5 is arranged between the top plate 1 and the upper template 2, and the second latch assembly 6 is arranged between the upper template 2 and the lower template 3; the lower template 3 cooperates with the upper template 2 to form a complete product injection cavity; the first latch assembly 5 can prevent the top plate 1 and the upper template 2 from relative displacement during the opening and closing process of the mold, thereby maintaining the stability of the structure; the second latch assembly 6 can improve the alignment accuracy of the upper template 2 and the lower template 3 during the opening and closing process of the mold.

[0029] like Figure 1 and Figure 2 As shown, the first latch assembly 5 includes a first locking block 51 and a slide 52, the slide 52 is arranged on the side wall of the upper template 2, the top of the first locking block 51 is arranged on the top plate 1, the bottom of the first locking block 51 has a slider portion 511, and the surface of the slide 52 is provided with an inclined groove 520 for the slider portion 511 to adapt and engage; before the mold starts to close, the slider portion 511 of the first locking block 51 and the inclined groove 520 of the slide 52 are in a non-contact or partial contact state, when the mold starts to close, the top plate 1 moves downward close to the upper template 2, and the slider portion 511 of the first locking block 51 slides into the inclined groove 520 of the slide 52 to achieve locking and engaging, thereby preventing the top plate 1 and the upper mold base from relative displacement during the opening and closing process.

[0030] like Figure 3 and Figure 4 As shown, the second locking assembly 6 includes a second locking block 61, a positioning seat 62, a spring 63, a clamping column 64 and a limiting rod 65. The second locking block 61 is arranged on the side wall of the upper template 2, and the positioning seat 62 is arranged on the side wall of the lower template 3. The second locking block 61 has a rod insertion portion 611 at the bottom, and a slot 620 for the rod insertion portion 611 to extend into the middle of the positioning seat 62;

[0031] The slot 620 is provided with inner hole channels 621 connected thereto on both sides, the clamping column 64 is provided on the side of the inner hole channel 621 close to the slot 620, the limiting rod 65 is provided on the side of the inner hole channel 621 away from the slot 620, the spring 63 is provided between the clamping column 64 and the limiting rod 65, the spring 63 is used to apply elastic force to the clamping column 64 to move toward the slot 620, and the side wall of the insertion rod portion 611 is provided with an arc groove 610 for abutting against the clamping column 64. When the mold begins to close, the second locking block 61 can extend into the positioning seat 62 of the lower mold plate 3 as the upper mold plate 2 moves downward. At this time, the arc groove 610 of the insertion rod part 611 can overcome the elastic force of the spring 63 and prompt the clamping column 64 to be pushed toward the side of the limiting rod 65. The clamping column 64 can be limitedly connected with the arc groove 610 under the elastic force of the spring 63 to prevent relative displacement between the upper mold plate 2 and the lower mold plate 3, thereby improving the opening and closing accuracy of the mold.

[0032] like Figure 2 As shown, further, positioning grooves 521 are provided on both sides of the inclined groove 520, and positioning slide blocks 512 are provided on both sides of the first locking block 51 to be adapted and engaged with the positioning grooves 521. The arrangement of the positioning grooves 521 and the positioning slide blocks 512 can make the alignment between the top plate 1 and the upper template 2 more accurate and prevent deviation.

[0033] like Figure 4 As shown, further, the limiting rod 65 is provided with an external thread structure (not shown), the inner hole channel 621 of the positioning seat 62 is provided with an internal thread structure (not shown), and the limiting rod 65 and the positioning seat 62 are connected by threads. Such a configuration can facilitate the adjustment of the position of the limiting rod 65 on the inner hole channel 621, and then adjust the elastic force of the spring 63, so as to achieve the purpose of adjusting the locking force of the second latch assembly 6.

[0034] like Figure 1 and Figure 2 As shown, further, the first latch assembly 5 also includes a cover plate 53, and the cover plate 53 is connected to the side wall of the inclined groove 520, and the cover plate 53 is used to cover the sliding block portion 511 in the inclined groove 520.

[0035] like Figure 1 As shown, further, the number of the first latch assembly 5 and the second latch assembly 6 are both two groups. With such an arrangement, the mold can be supported and locked at two symmetrical positions to evenly distribute the force and prevent the mold from tilting, deforming or loosening during the opening and closing process.

[0036] like Figure 3 and Figure 4As shown, further, transition chamfer structures 612 are provided on both sides of the bottom of the insertion rod portion 611. The provision of the transition chamfer structure 612 can facilitate the insertion rod portion 611 to smoothly enter the slot 620 of the positioning seat 62, effectively reduce the friction and resistance during the initial insertion, improve the alignment efficiency and accuracy, and ensure smooth alignment every time the mold is opened and closed.

[0037] As described above, the above embodiments are only used to illustrate the technical solutions of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that the technical solutions described in the aforementioned embodiments can still be modified, or some of the technical features can be replaced by equivalents. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the various embodiments of the utility model.

Claims

1. A precise alignment mechanism for opening and closing a mold, characterized in that: It includes a top plate, an upper template, a lower template, a bottom plate, a first locking assembly and a second locking assembly; The top plate is arranged on the top of the upper template, the upper template is located above the lower template, the bottom of the lower template is connected to the bottom plate through a connecting plate, the first locking assembly is arranged between the top plate and the upper template, and the second locking assembly is arranged between the upper template and the lower template; The first locking assembly comprises a first locking block and a slide seat, wherein the slide seat is arranged on the side wall of the upper template, the top of the first locking block is arranged on the top plate, the bottom of the first locking block has a slide portion, and the surface of the slide seat is provided with an oblique groove for the slide portion to be adapted and engaged; The second locking assembly includes a second locking block, a positioning seat, a spring, a clamping column and a limiting rod. The second locking block is arranged on the side wall of the upper template, the positioning seat is arranged on the side wall of the lower template, the bottom of the second locking block has an insertion rod portion, and the middle of the positioning seat is provided with a slot for the insertion rod portion to extend into; The slot is provided with inner hole channels connected thereto on both sides, the clamping column is provided on a side of the inner hole channel close to the slot, the limiting rod is provided on a side of the inner hole channel away from the slot, the spring is provided between the clamping column and the limiting rod, the spring is used to apply elastic force to the clamping column to move it toward the slot, and the side wall of the insertion rod part is provided with an arc groove for abutting against the clamping column.

2. The precise alignment mechanism for mold opening and closing according to claim 1, characterized in that: Positioning slide grooves are arranged on both sides of the inclined groove, and positioning sliding blocks adapted to be engaged with the positioning slide grooves are arranged on both sides of the first locking block.

3. The precise alignment mechanism for mold opening and closing according to claim 1, characterized in that: The limiting rod is provided with an external thread structure, the inner hole channel of the positioning seat is provided with an internal thread structure, and the limiting rod is connected to the positioning seat through threads.

4. The precise alignment mechanism for mold opening and closing according to claim 1, characterized in that: The first trigger assembly also includes a cover plate, which is connected to the side wall of the inclined groove and is used to cover the sliding block in the inclined groove.

5. The precise alignment mechanism for mold opening and closing according to claim 1, characterized in that: The number of the first trigger assembly and the number of the second trigger assembly are both two.

6. The precise alignment mechanism for mold opening and closing according to claim 1, characterized in that: Transition chamfer structures are provided on both sides of the bottom of the rod insertion part.

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