Sliding block driving structure for injection molding production

Abstract

A sliding block driving structure for injection molding production comprises a fixed mold and a movable mold, the fixed mold is located above the movable mold, the fixed mold comprises a driving block, the driving block is fixedly installed on the side face of the fixed mold, a guide rail groove is formed in the side face of the driving block, a plurality of cavities are formed in the movable mold, sliding block structures are arranged in the cavities, and the sliding block structures are arranged in the cavities. The sliding block structure comprises a movable mold core, a sliding block and a connecting block are sequentially and fixedly connected to the face, close to the driving block, of the movable mold core, a bearing is fixedly installed at the tail end of the connecting block, the bearing is arranged in a guide rail groove, and the movable mold core is different from a common movable mold core through the design of the bearing and the guide rail groove. The angle deformation caused by long-time friction between the guide rail groove and the inclined guide column is avoided, the mold can be opened and closed more smoothly, the friction coefficient is reduced, the driving block and the sliding block can be butted more accurately in the mold opening and closing process, and the damage to a product caused by incorrect angles in the mold opening and closing process is avoided.

Description

Technical Field

[0001] The utility model relates to the field of injection molds, in particular to a slider driving structure for injection production. Background Art

[0002] The slider is an important component in the injection mold. Its main function is to slide perpendicular to the mold opening and closing direction or at a certain angle to the mold opening and closing direction during the mold opening process, so as to facilitate the molding of complex product structures and internal cavities. The slider system usually includes components such as sliders, guide pillars, guide sleeves, etc., which realize the opening and closing and movement of the mold by sliding or rotating. The slider system needs to have high precision and stability to ensure the accuracy of the shape and size of the product.

[0003] The announcement number is CN203557643U, and the name is a slider structure of a side injection mold of a slide cover, which includes a guide mechanism and a slider, wherein the guide mechanism is perpendicular to the slider, a guide head is provided at one end of the guide mechanism, and the guide head is bent to one side relative to the guide mechanism, the slider is provided with an inclined hole, the guide head matches the inclined hole, and a protrusion is provided at one end of the slider, and the protrusion is perpendicular to the guide mechanism. The utility model sets a movable slider in the mold structure, and the protrusion on the slider can be inserted into the side hole of the slide cover to be injected, so that the mold demoulding is convenient and fast, the production efficiency is improved, and the mold maintenance is simple and easy, thereby reducing the mold maintenance cost.

[0004] The movable mold core drives the slider to demould through the cooperation between the guide head and the inclined hole. However, after long-term use, the first inclined surface of the guide head and the first plane of the inclined hole will cause wear. The worn guide head of the slider and the inclined hole will be deformed in the fitting angle. When the angle is deformed, the deformed slider will cause damage to the product during the demoulding process during the mold opening process, thereby reducing production efficiency, increasing losses, and increasing production costs. Utility Model Content

[0005] In order to solve the above problems, the present application provides a slider driving structure for injection molding production, which adopts the following technical solutions:

[0006] A slider driving structure for injection molding production, including a square mold body, the mold body including a fixed mold and a movable mold, the fixed mold is located above the movable mold, the fixed mold is a square structure, the fixed mold includes a driving block, the driving block is fixedly installed on the side of the fixed mold, the side surface of the driving block is provided with a guide rail groove, a plurality of cavities are provided inside the movable mold, a slider structure is arranged inside the cavity, the slider structure includes a movable mold core, a mold is arranged on the upper surface of the movable mold core, a slider is arranged on the side of the movable mold core and close to the driving block, an insert is fixedly connected above the slider, one end of the insert is located inside the mold, a connecting block is fixedly installed below the slider, a bearing is fixedly installed on the connecting block close to one end of the driving block, and the bearing is located inside the guide rail groove.

[0007] Optionally, the movable mold is provided with an opening near the driving block. The driving block is an "h"-shaped structure, the upper part of which is fixedly connected to the fixed mold, and the protruding structure of the lower part matches the size of the opening. A guide block is fixedly installed at the opening position, and the guide block is a rectangular structure and is laterally fixed at the opening.

[0008] Optionally, the sliding block is arranged higher than the guide block, and the connecting block is located below the guide block.

[0009] Optionally, a fixing hole is provided in the upper part of the driving block near the fixed mold, and a pin is arranged inside the fixing hole.

[0010] Optionally, the guide rail groove includes two sections of slide grooves, the slide grooves include slide groove a and slide groove b, the slide groove a is vertical, the slide groove b is inclined outward, and the upper end of the slide groove b is connected to the slide groove a.

[0011] Optionally, the outer wall of the bearing fits into the guide rail groove.

[0012] Compared with the prior art, the beneficial effects of the utility model are:

[0013] By arranging a bearing at one end of the connecting block and arranging a guide groove on the driving block, when closing or opening the mold, the bearing is embedded between the guide grooves so that when the mold is opened, the bearing rolls in the guide groove to reduce the friction coefficient between the guide groove and the bearing, thereby reducing the degree of loss. When opening the mold, the bearing moves along the guide groove, and drives the insert to be removed from the mold while the movable mold opens downward. When closing the mold, the bearing can assist the alignment of the driving block, so that the guide groove and the bearing can be accurately connected when closing the mold, thereby avoiding the situation where the angle of the slider and the guide groove is inconsistent due to friction caused by long-term use. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the technical solution of the implementation mode of the utility model, the drawings required for use in the implementation mode will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the utility model and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying creative work.

[0015] Figure 1 This is an overall diagram of a movable mold core of a slider driving structure for injection molding production of the utility model;

[0016] Figure 2 It is a schematic diagram of a slider driving structure for injection molding production shown in the utility model when the movable mold core is opening the mold;

[0017] Figure 3 This is an overall schematic diagram of a slider driving structure for injection molding production shown in the utility model;

[0018] Figure 4 The utility model is a schematic diagram of the internal structure of a slider driving structure for injection molding production.

[0019] Figure 5 The utility model is a schematic diagram of a slider driving structure for injection molding production when the mold is opened.

[0020] In the figure: 1. fixed mold; 2. movable mold; 3. driving block; 31. guide groove; 32. fixing hole; 33. slide groove a; 34. slide groove b; 4. slider structure; 41. connecting block; 42. slider; 43. insert; 44. movable mold core; 45. mold; 46. bearing; 5. guide block. DETAILED DESCRIPTION

[0021] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, 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. Therefore, the following detailed description of the embodiments of the utility model provided in the drawings is not intended to limit the scope of the utility model for which protection is claimed, but merely represents selected embodiments of the utility model.

[0022] Please refer to Figure 1-Figure 5As shown, a slider driving structure for injection molding production includes a square mold body, the mold body includes a fixed mold 1 and a movable mold 2, the fixed mold 1 is located above the movable mold 2, the fixed mold 1 is a square structure, the fixed mold 1 includes a driving block 3, the driving block 3 is fixedly installed on the side of the fixed mold 1, and the side surface of the driving block 3 is provided with a guide rail groove 31, the movable mold 2 is provided with a plurality of cavities, and a slider structure 4 is arranged inside the cavity, the slider structure 4 includes a movable mold core 44, and a mold 45 is arranged on the upper surface of the movable mold core 44, and a slider 42 is arranged on the side of the movable mold core 44 and close to the driving block 3, and the slider 42 is fixedly connected to the top The insert 43 has one end located inside the mold 45, and the connecting block 41 is fixedly installed below the slider 42. The connecting block 41 has a bearing 46 fixedly installed at one end close to the driving block 3. The bearing 46 is located inside the guide rail groove 31. When in use, the fixed mold 1 is opened upward to drive the driving block 3 fixed on the fixed mold 1 to move upward. Since the bearing 46 is embedded in the guide rail groove 31, when the mold is opened, the bearing 46 rotates and displaces according to the groove shape of the guide rail groove 31, and drives the slider structure 4 to be disengaged while the mold is opened upward. When in use, the insert 43 assists in product molding. Since the insert 43 is fixedly connected to the slider 42, it can drive the insert 43 to be separated from the mold when demolding.

[0023] Please refer to Figure 2-3 As shown, the movable mold 2 is provided with an opening near the driving block 3, and the driving block 3 is an "h"-shaped structure, and its upper part is fixedly connected to the fixed mold 1. A fixing hole 32 is opened in the upper part of the driving block 3 near the fixed mold 1, and a pin is arranged inside the fixing hole 32. The protruding structure of the lower part matches the size of the opening, and a guide block 5 is fixedly installed at the opening position. The guide block 5 is a rectangular structure and is laterally fixed at the opening. The slider 42 is arranged higher than the guide block 5, and the connecting block 41 is located below the guide block 5. When in use, the movable mold 2 moves downward relative to the fixed mold 1. When the movable mold 2 moves downward, the slider 42 inside it moves outward due to the action of the bearing 46. Since the slider 42 is higher than the guide block 5, the guide block 5 can block the slider 42 to prevent the slider 42 from completely detaching, and limit the displacement distance of the slider 42. The driving block 3 is fixed to the side of the fixed mold 1 by passing the pin through the fixing hole 32.

[0024] Please refer to Figure 4-5 As shown, the guide groove 31 includes two sections of slide grooves, and the slide grooves include a slide groove a33 and a slide groove b34. The slide groove a33 is vertical, and the slide groove b34 is inclined outward. The upper end of the slide groove b34 is connected to the slide groove a33, and the outer wall of the bearing 46 fits with the guide groove 31. When in use, the bearing 46 first moves downward along the slide groove a33 and then moves outward along the slide groove b34 to drive the slider 42. The moving slider 42 drives the insert 43 to leave the mold.

[0025] Working principle: When the mold is opened, the movable mold 2 moves downward away from the fixed mold 1. At this time, the bearing 46 rolls in the guide groove 31. Since the guide groove 31 includes two sections of slide grooves, the bearing 46 rolling inside the guide groove 31 moves downward along the slide groove a33 and then moves outward along the outward inclined slide groove b34, while driving the slider 42 fixedly connected to the bearing 46 to move outward and causing the insert 43 to separate from the mold 45. The moving mold 45 is blocked after touching the guide block 5, so that when the mold is opened, the driving block 3 drives the movable mold core 44 to move while causing the insert 43 to separate from the mold 45.

[0026] The above description is only the preferred implementation of the utility model, and is not intended to limit the utility model. For those skilled in the art, the utility model can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A slider driving structure for injection molding production, comprising a square mold body, wherein the mold body comprises a fixed mold (1) and a movable mold (2), wherein the fixed mold (1) is located above the movable mold (2), and is characterized in that: The fixed mold (1) is a square structure. The fixed mold (1) comprises a driving block (3). The driving block (3) is fixedly mounted on the side of the fixed mold (1). A guide rail groove (31) is provided on the side surface of the driving block (3). A plurality of cavities are provided inside the movable mold (2). A slider structure (4) is arranged inside the cavity. The slider structure (4) comprises a movable mold core (44). A mold (45) is arranged on the upper surface of the movable mold core (44). A slider (42) is arranged on the side of the movable mold core (44) and close to the driving block (3). An insert (43) is fixedly connected above the slider (42). One end of the insert (43) is located inside the mold (45). A connecting block (41) is fixedly mounted below the slider (42). A bearing (46) is fixedly mounted on one end of the connecting block (41) close to the driving block (3). The bearing (46) is located inside the guide rail groove (31).

2. The slider driving structure for injection molding production according to claim 1, characterized in that: The movable mold (2) is provided with an opening near the driving block (3). The driving block (3) is an "h"-shaped structure, the upper half of which is fixedly connected to the fixed mold (1), and the protruding structure of the lower half is consistent with the size of the opening. A guide block (5) is fixedly installed at the opening. The guide block (5) is a rectangular structure and is transversely fixed at the opening.

3. The slider driving structure for injection molding production according to claim 1, characterized in that: The sliding block (42) is arranged higher than the guide block (5), and the connecting block (41) is located below the guide block (5).

4. The slider driving structure for injection molding production according to claim 2, characterized in that: A fixing hole (32) is provided on the upper part of the driving block (3) near the fixed mold (1), and a pin is arranged inside the fixing hole (32).

5. The slider driving structure for injection molding production according to claim 1, characterized in that: The guide rail groove (31) includes two sections of slide grooves, and the slide grooves include a slide groove a (33) and a slide groove b (34). The slide groove a (33) is vertical, and the slide groove b (34) is inclined outward. The upper end of the slide groove b (34) is connected to the slide groove a (33).

6. The slider driving structure for injection molding production according to claim 1, characterized in that: The outer wall of the bearing (46) is in close contact with the guide rail groove (31).

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