Die for manufacturing cover plate

Abstract

The utility model relates to the technical field of dies, in particular to a die for manufacturing a cover plate. According to the technical scheme, the die comprises a lower die body and an upper die body, a lower cavity is formed in the lower die body, a core column is fixedly connected into the lower cavity, an upper cavity is formed in the upper die body, a core column barrel movably connected with the core column in a sleeved mode is fixedly connected into the upper cavity, and the die further comprises a core column anti-abrasion sleeve detachably and fixedly connected with the core column in a sleeved mode; the core column barrel anti-abrasion sleeve is detachably and fixedly connected with the core column barrel in a sleeved mode, and the core column barrel anti-abrasion sleeve is movably connected with the core column anti-abrasion sleeve in a sleeved mode. The core column anti-abrasion sleeve is detachably and fixedly sleeved outside the core column, and the core column barrel anti-abrasion sleeve is detachably and fixedly sleeved inside the core column barrel, so that the service lives of the core column and the core column barrel can be prolonged by replacing the core column anti-abrasion sleeve and the core column barrel anti-abrasion sleeve, and the problem that the hole forming effect of a workpiece is poor due to abrasion is avoided; through the design of the abrasion monitoring mechanism, the abrasion degree between the core column anti-abrasion sleeve and the core column barrel anti-abrasion sleeve can be observed from the outside, and timely replacement is facilitated.

Description

Technical Field

[0001] The utility model relates to the technical field of molds, in particular to a mold for manufacturing a cover plate. Background Art

[0002] A mold is a tool used to make shaped objects. It generally consists of two parts: a movable mold and a fixed mold (or an upper mold and an upper mold). When the two parts are separated, the workpiece is taken out, and when they are closed, the blank is injected into the mold cavity to form.

[0003] When manufacturing the cover plate, since the cover plate not only protects the equipment but also connects the inside and outside of the equipment, holes and grooves are usually set on the cover plate. The processing of the holes and grooves requires that a core column and a core column sleeve are respectively set in the cavities of two molds. The positions of the core column and the core column sleeve are not occupied by the blank, so holes and grooves can be formed on the product.

[0004] Based on the above, when manufacturing the cover plate, due to frequent mold opening and closing, wear will occur between the core column and the core column sleeve, resulting in a gap. The blank in the cavity is easy to enter the gap under the action of pressure, resulting in adhesion at the hole groove of the workpiece and poor hole forming effect. Therefore, the utility model proposes a mold for manufacturing the cover plate that can avoid poor hole forming effect caused by wear. Utility Model Content

[0005] The utility model aims to solve the problem of poor hole-forming effect due to wear in the background technology and propose a mold for manufacturing a cover plate.

[0006] The technical solution of the utility model: a mold for manufacturing a cover plate, comprising a lower mold and an upper mold, the lower mold is provided with a lower cavity, a core column is fixedly connected in the lower cavity, the upper mold is provided with an upper cavity, a core column tube movably connected to the core column is fixedly connected in the upper cavity, and also includes: a core column anti-wear sleeve detachably fixedly connected to the core column; a core column tube anti-wear sleeve detachably fixedly connected to the core column tube, and the core column tube anti-wear sleeve is movably connected to the core column anti-wear sleeve.

[0007] Optionally, the core column anti-wear sleeve is fixedly connected to the top end of the core column by bolts.

[0008] Optionally, a threaded column is fixedly connected to the top end of the core column tube anti-wear sleeve, and the top end of the threaded column is threadedly screwed into a screw ring.

[0009] Optionally, a positioning strip is provided on the outer wall of the threaded column, and a positioning groove matching the positioning strip is formed in the upper mold.

[0010] Optionally, it also includes a wear monitoring mechanism for observing the degree of wear of the core column anti-wear sleeve and the core column tube anti-wear sleeve. The wear monitoring mechanism includes a threaded cap threaded on the top of the threaded column and a center column movably connected to the threaded cap. The bottom end of the center column is provided with a valve ball extending into the threaded column.

[0011] Optionally, the wear monitoring mechanism includes a reset spring, a column cap is provided at the top of the center column, the reset spring is movably sleeved with the center column and two ends of the reset spring are respectively fixedly connected to the column cap and a threaded cap.

[0012] Optionally, the wear monitoring mechanism also includes a positioning arm fixedly connected to the column cap at one end, a guide ring fixed to the threaded cap and movably connected to the other end of the positioning arm, a fixing hoop fixed to the upper surface of the guide ring, and a marking pen fixed to the fixing hoop.

[0013] Compared with the prior art, the utility model has the following beneficial technical effects:

[0014] The present application provides a detachable fixed sleeve sleeve for the core column anti-wear sleeve on the outside of the core column and a detachable fixed sleeve sleeve for the core column tube anti-wear sleeve on the inside of the core column tube. The service life of the core column and the core column tube can be extended by replacing the core column anti-wear sleeve and the core column tube anti-wear sleeve, thereby avoiding the problem of poor hole-forming effect of the workpiece due to wear.

[0015] Furthermore, through the design of the wear monitoring mechanism, the degree of wear between the core column anti-wear sleeve and the core column tube anti-wear sleeve can be observed externally, which is convenient for timely replacement. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 A schematic diagram of the structure of a mold for manufacturing a cover plate;

[0017] Figure 2 for Figure 1 Separate sectional view of the middle and lower molds and the upper mold;

[0018] Figure 3 for Figure 2 Structural schematic diagram of the wear-resistant sleeve of the central core cylinder;

[0019] Figure 4 It is a connection diagram of the core column anti-wear sleeve, the core column tube anti-wear sleeve and the wear monitoring mechanism.

[0020] Reference numerals: 1, lower mold; 11, lower cavity; 111, core column;

[0021] 2. upper mold; 21. upper mold cavity; 211. core cylinder; 22. positioning slot;

[0022] 3. Core column anti-wear sleeve;

[0023] 4. Anti-wear sleeve of core column; 41. Threaded column; 411. Positioning card strip; 42. Screw ring;

[0024] 5. Wear monitoring mechanism; 51. Threaded cap; 52. Center column; 521. Valve ball; 522. Column cap; 53. Return spring; 54. Positioning arm; 55. Guide ring; 56. Fixing hoop; 57. Marking pen. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only 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.

[0026] In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "front end", "rear end", "two ends", "one end", "the other end" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as a limitation on the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.

[0027] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "provided with", "connected", etc. should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0028] like Figure 1-4 As shown, the present invention provides a mold for manufacturing a cover plate, comprising a lower mold 1 and an upper mold 2, wherein the lower mold 1 is provided with a lower mold cavity 11, in which a stem 111 is fixedly connected, and the upper mold 2 is provided with an upper mold cavity 21, in which a stem cylinder 211 movably connected to the stem 111 is fixedly connected. The above is the existing structure of the mold, which will not be described in detail here.

[0029] In this embodiment, the mold includes a stem anti-wear sleeve 3 that is detachably fixedly sleeved with the stem 111, a stem tube anti-wear sleeve 4 that is detachably fixedly sleeved with the stem tube 211 and movably sleeved with the stem anti-wear sleeve 3, and a wear monitoring mechanism 5 for observing the wear degree of the stem anti-wear sleeve 3 and the stem tube anti-wear sleeve 4, as follows:

[0030] The core column anti-wear sleeve 3 is fixedly connected to the top of the core column 111 by bolts to achieve detachability. The top of the core column tube anti-wear sleeve 4 is integrally connected with a threaded column 41, and the top of the threaded column 41 is movably penetrated through the upper mold 2 and then screwed and connected with a screw ring 42 to achieve detachability. A pair of positioning clips 411 are integrally fixed to the outer wall of the threaded column 41, and the upper mold 2 is provided with a positioning slot 22 matching the positioning clip 411. The self-rotation of the core column tube anti-wear sleeve 4 is limited by the engagement between the positioning slot 22 and the positioning clip 411, so that the screw ring 42 can be screwed in conveniently.

[0031] refer to Figure 4 The wear monitoring mechanism 5 includes a threaded cap 51 that can be screwed on the top of the threaded column 41 and a center column 52 that is movably connected to the threaded cap 51. The bottom of the center column 52 is integrally fixedly connected with a valve ball 521 that extends into the threaded column 41 and can be concentrically tangent to the inner wall of the threaded column 41, that is, the air circulation in the threaded column 41 can be restricted by the valve ball 521. The wear monitoring mechanism 5 also includes a reset spring 53. The top of the center column 52 is integrally fixedly connected with a column cap 522. The reset spring 53 is movably sleeved with the center column 52 and its two ends are respectively fixedly connected to the column cap 522 and the threaded cap 51. The reset spring 53 can realize the vertical reset of the center column 52;

[0032] The wear monitoring mechanism 5 also includes a positioning arm 54 with one end fixedly connected to the outer edge of the column cap 522, a guide ring 55 fixed to the outer edge of the threaded cap 51 and movably connected to the other end of the positioning arm 54, a fixing hoop 56 fixed to the upper surface of the guide ring 55, and a marking pen 57 fixed to the fixing hoop 56. The tip of the marking pen 57 is attached to the outer wall of the positioning arm 54, and a line is drawn by the up and down movement of the positioning arm 54. The wear degree of the core column anti-wear sleeve 3 and the core column tube anti-wear sleeve 4 is judged according to the length of the line. The outer wall of the positioning arm 54 is provided with scale lines in the vertical direction to facilitate the comparison of the length of the line drawn by the marking pen 57. In addition, in other embodiments, the marking pen 57 can also be replaced with an electronic device such as an infrared sensor that can automatically monitor the moving distance.

[0033] The working principle of this embodiment is: by detachably fixing the core column anti-wear sleeve 3 on the outside of the core column 111 and detachably fixing the core column tube anti-wear sleeve 4 on the inside of the core column tube 211, the service life of the core column 111 and the core column tube 211 can be extended by replacing the core column anti-wear sleeve 3 and the core column tube anti-wear sleeve 4, thereby avoiding the problem of poor hole-forming effect of the workpiece due to wear; further, through the design of the wear monitoring mechanism 5, the degree of wear between the core column anti-wear sleeve 3 and the core column tube anti-wear sleeve 4 can be observed externally, so as to facilitate timely replacement.

[0034] Specifically, Figure 2 and Figure 4 As shown, when the mold is closed, the core column anti-wear sleeve 3 is inserted into the core column tube anti-wear sleeve 4. Since the outer wall of the core column anti-wear sleeve 3 is in close contact with the inner wall of the core column tube anti-wear sleeve 4, the air in the core column tube anti-wear sleeve 4 is squeezed upward, thereby pushing the valve ball 521 upward. The valve ball 521 drives the positioning arm 54 upward through the threaded cap 51 and the column cap 522, so that the marker 57 can draw a line on the positioning arm 54. With frequent mold opening and closing operations, wear will occur between the core column anti-wear sleeve 3 and the core column tube anti-wear sleeve 4, resulting in an increase in the gap between the inner and outer walls of the two. At this time, when the mold is closed, the air in the core column tube anti-wear sleeve 4 will not be completely squeezed upward, and part of the air will flow downward along the gap between the two. Therefore, the distance that the valve ball 521 moves upward will be shortened, that is, the line drawn by the marker 57 will be shortened. In other words, the degree of wear of the core column anti-wear sleeve 3 and the core column tube anti-wear sleeve 4 can be judged by observing the length of the line drawn by the marker 57, which is convenient for immediate replacement.

[0035] The above-mentioned specific embodiments are only several optional embodiments of the present invention. Based on the technical solution of the present invention and the relevant inspiration of the above-mentioned embodiments, those skilled in the art can make various alternative improvements and combinations to the above-mentioned specific embodiments.

Claims

1. A mold for manufacturing a cover plate, comprising a lower mold (1) and an upper mold (2), wherein the lower mold (1) is provided with a lower mold cavity (11), a stem column (111) is fixedly connected in the lower mold cavity (11), and the upper mold (2) is provided with an upper mold cavity (21), a stem column cylinder (211) movably connected to the stem column (111) is fixedly connected in the upper mold cavity (21), characterized in that: Also includes: A stem anti-wear sleeve (3) detachably fixedly sleeved with the stem (111); A core column tube anti-wear sleeve (4) is detachably fixedly sleeved with the core column tube (211); the core column tube anti-wear sleeve (4) is movably sleeved with the core column anti-wear sleeve (3).

2. A mold for manufacturing a cover plate according to claim 1, characterized in that: The core column anti-wear sleeve (3) is fixedly connected to the top end of the core column (111) by means of bolts.

3. A mold for manufacturing a cover plate according to claim 2, characterized in that: The top end of the core column tube anti-wear sleeve (4) is fixedly connected with a threaded column (41), and the top end of the threaded column (41) is threadedly screwed with a screw ring (42).

4. A mold for manufacturing a cover plate according to claim 3, characterized in that: The outer wall of the threaded column (41) is provided with a positioning clip (411), and the upper mold (2) is provided with a positioning clip groove (22) matching the positioning clip (411).

5. A mold for manufacturing a cover plate according to claim 4, characterized in that: The invention also comprises a wear monitoring mechanism (5) for observing the degree of wear of the core column anti-wear sleeve (3) and the core column tube anti-wear sleeve (4), wherein the wear monitoring mechanism (5) comprises a threaded cap (51) threadedly engaged with the top end of the threaded column (41) and a center column (52) movably connected to the threaded cap (51), wherein the bottom end of the center column (52) is provided with a valve ball (521) extending into the threaded column (41).

6. A mold for manufacturing a cover plate according to claim 5, characterized in that: The wear monitoring mechanism (5) comprises a reset spring (53), a column cap (522) is provided at the top of the center column (52), the reset spring (53) is movably sleeved with the center column (52) and the two ends are respectively fixedly connected to the column cap (522) and the threaded cap (51).

7. A mold for manufacturing a cover plate according to claim 6, characterized in that: The wear monitoring mechanism (5) further comprises a positioning arm (54) having one end fixedly connected to the column cap (522), a guide ring (55) fixed to the threaded cap (51) and movably sleeved to the other end of the positioning arm (54), a fixing hoop (56) fixed to the upper surface of the guiding ring (55), and a marking pen (57) fixed to the fixing hoop (56).

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