Automatic demolding mold

Abstract

The utility model provides an automatic demoulding mould which comprises an upper mould, a lower mould, a demoulding plate and an automatic demoulding mechanism, the lower mould is arranged below the upper mould, and the demoulding plate is arranged between the upper mould and the lower mould. The automatic demolding mechanism comprises first connecting bases arranged on the two sides of the upper mold, second connecting bases fixed to the demolding plate and arranged corresponding to the first connecting bases up and down, and a first connecting assembly connecting the upper mold and the demolding plate. The first connecting assembly comprises a first connecting rod vertically arranged in the first connecting base in a penetrating mode and a sleeve arranged on the first connecting rod in a sleeving mode and arranged in the second connecting base in a penetrating mode, and the first connecting rod can slide up and down in the sleeve. In the mold opening process, the distance between the upper mold and the demolding plate during demolding is increased through the telescopic movement of the first connecting rod and the sleeve and the up-down movement of the sleeve in the second connecting seat, so that the mold taking space is increased, enough mold taking space is guaranteed after demolding is completed, and the mold taking efficiency and quality are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of lost foam molds, in particular to an automatic demoulding mold. Background Art

[0002] Lost foam casting, also known as negative pressure solid mold casting (EPC), uses expandable polystyrene (EPS) as raw material to make a foam pattern (foam white mold) for casting. It is the main way of green intensive casting and will occupy an increasingly important position in casting production. As a new manufacturing process, the advantages of lost foam casting are becoming increasingly apparent in today's society, especially in terms of energy conservation and environmental protection, reducing energy consumption and production costs, which will have a far-reaching impact on the manufacturing industry.

[0003] At present, although the lost foam mold industry has been widely developed in recent years and has gradually become an important part of the manufacturing industry, there are still some problems and challenges. The existing lost foam molds on the market are not highly automated, and the production efficiency is low, resulting in high costs and unstable quality. For example, the patent with the publication number CN220901877U discloses an automatic demoulding mechanism, including: an upper connecting seat, a lower connecting seat and a connecting rod, the upper connecting seat is arranged on both sides of the upper mold, the lower connecting seat is arranged on both sides of the stripping plate corresponding to the upper connecting seat, the connecting rod vertically passes through the upper connecting seat and the lower connecting seat, the top end of the connecting rod is connected to the upper connecting seat, and the bottom end of the connecting rod is used to abut against the lower connecting seat. Although the linkage between the upper mold and the stripping plate can be easily realized, that is, the upper mold continues to move upward after the mold is opened, thereby driving the stripping plate to move at the same time, so that the lost foam pattern can be automatically demoulded, but there is often a problem of insufficient space when taking the mold. After demoulding is completed, the white mold needs to be taken out manually in the space between the upper mold and the demoulding plate. Due to the limitation of the length of the connecting rod, the space for taking out the mold is small, and it is often difficult to take out the white mold quickly and smoothly, and even bumps may occur, which invisibly reduces production efficiency and increases production and maintenance costs.

[0004] Therefore, it is necessary to provide a kind of automatic demoulding mould, to overcome the defective that exists in above-mentioned. Utility Model Content

[0005] The utility model aims to provide a mould with automatic demoulding.

[0006] According to one aspect of the utility model, there is provided a mold for automatic demoulding, comprising:

[0007] upper mold;

[0008] A lower die, the lower die being located below the upper die;

[0009] A stripping plate, the stripping plate being located between the upper die and the lower die;

[0010] An automatic demoulding mechanism, the automatic demoulding mechanism comprising a first connecting seat arranged on both sides of the upper mold, a second connecting seat fixed to the demoulding plate and arranged corresponding to the first connecting seat up and down, and a first connecting component connecting the upper mold and the demoulding plate, the first connecting component comprising a first connecting rod vertically inserted in the first connecting seat and a sleeve sleeved on the first connecting rod and inserted in the second connecting seat, the first connecting rod being able to slide up and down in the sleeve;

[0011] During the mold opening process, when the upper mold moves upward, the upper mold is demolded while the first connecting seat drives the first connecting rod to move upward. When the bottom end of the first connecting rod moves up to abut against the top of the sleeve, it drives the sleeve to move upward. The sleeve then drives the demolding plate upward through the second connecting seat to demold the lower mold.

[0012] Preferably, a first limiting plate is provided at the top end of the first connecting rod, the first limiting plate is supported on the first connecting seat, and a first limiting block is provided at the bottom end of the first connecting rod, the diameter of the first limiting block is larger than the diameter of the first connecting rod and smaller than the inner diameter of the sleeve.

[0013] Preferably, the sleeve includes a sleeve body inserted into the second connecting seat, an end cover arranged at the top of the sleeve body and a second limit block arranged at the bottom of the sleeve body, the bottom end of the first connecting rod passes through the end cover and extends into the sleeve body, and the end cover is supported on the second connecting seat.

[0014] Preferably, a thread is provided on the top of the sleeve body, and the end cover comprises a connecting portion threadedly connected to the top of the sleeve and a covering portion for covering the opening on the top of the sleeve, wherein the covering portion is used to abut against the first limit block.

[0015] Preferably, a thread is provided at the bottom of the sleeve body, and the second limit block is threadedly connected to the sleeve body and is locked around the outside of the sleeve body.

[0016] Preferably, a threaded hole is axially inwardly provided at the top end of the first connecting rod, and a through hole is provided in the middle of the first limiting plate. A bolt passes through the through hole and is screwed into the threaded hole to fix the first limiting plate to the top end of the first connecting rod.

[0017] Preferably, a threaded column is extended axially outward from the bottom end of the first connecting rod, and the first limiting block is locked on the threaded column.

[0018] Preferably, the first connecting seat is horizontally arranged at the four corners on both sides of the length direction of the upper mold, the upper surface of the first connecting seat is provided with a first groove, the first groove is provided with a first wear-resistant pad, and the first limiting piece is supported on the first wear-resistant pad.

[0019] Preferably, the automatic demolding mechanism also includes a third connecting seat arranged on both sides of the demolding plate in the width direction, a fourth connecting seat arranged on the side of the lower mold and corresponding to the third connecting seat above and below, and a second connecting component connecting the demolding plate and the lower mold, the second connecting component includes a second connecting rod vertically passing through the third connecting seat and the fourth connecting seat, a second limiting plate located at the top of the second connecting rod and supported by the third connecting seat, and a third limiting plate located at the bottom of the second connecting rod and used to abut against the fourth connecting seat.

[0020] Preferably, the third connecting seat is horizontally arranged at the four corners on both sides of the stripping template in the width direction, the upper surface of the third connecting seat is provided with a second groove, the second groove is provided with a second wear-resistant pad, and the third limiting plate is supported on the second wear-resistant pad.

[0021] Compared with the prior art, the automatic demoulding mold provided by the utility model has the following beneficial effects:

[0022] Due to the adoption of the above technical scheme, the utility model has the advantages of simple structure, ingenious design and low cost. The upper mold is connected to the stripping plate through the first connecting component. The first connecting component is a telescopic arrangement, including a sleeve inserted on the second connecting seat and a first connecting rod inserted on the first connecting seat and movable up and down in the sleeve. The distance between the upper mold and the stripping plate is increased during demolding through the telescopic movement of the first connecting rod and the sleeve and the up and down movement of the sleeve in the second connecting seat, thereby increasing the space for demolding and ensuring that there is sufficient space for demolding after demolding is completed, thereby increasing the efficiency and quality of demolding, avoiding the occurrence of collision with the lost foam pattern, improving production efficiency, and reducing production and maintenance costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The utility model is further described in detail below with reference to the accompanying drawings and specific embodiments:

[0024] Figure 1 A three-dimensional diagram of the mold closing state of the automatic demoulding mold of the utility model;

[0025] Figure 2 It is a front view of the mold of the automatic demoulding of the utility model in the mold closing state;

[0026] Figure 3 A top view of the mold of the utility model in a mold-closing state for automatic demoulding;

[0027] Figure 4 for Figure 3 The cross-sectional view of the AA surface;

[0028] Figure 5 for Figure 4 The enlarged view of point C;

[0029] Figure 6 for Figure 3 A cross-sectional view of the BB surface;

[0030] Figure 7 A first state diagram of the mold opening state of the automatic demoulding mold of the utility model;

[0031] Figure 8 A cross-sectional view of a second state diagram of the mold opening state of the automatic demoulding mold of the utility model;

[0032] Fig. 9 This is a third state diagram of the mold opening state of the automatic demoulding mold of the utility model.

[0033] Among them, 1. upper mold, 2. demoulding plate, 3. lower mold, 4. automatic demoulding mechanism, 41. first connecting component, 411. first connecting rod, 412. first limiting plate, 413. first limiting block, 414. sleeve, 4141. sleeve body, 4142. end cover, 4142a connecting part, 4142b covering part, 4143. second limiting block, 42. second connecting component, 421. second connecting rod, 422. second limiting plate, 423. third limiting plate, 43. first connecting seat, 431. first groove, 44. second connecting seat, 441. vertical plate, 442. horizontal plate, 45. third connecting seat, 451. second groove, 46. fourth connecting seat, 51. first wear-resistant pad, 52. second wear-resistant pad, 61. threaded hole, 62. threaded column, 63. locking nut, 64. through hole, 65. bolt. DETAILED DESCRIPTION

[0034] 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 work.

[0035] In order to simplify the drawings, only the parts related to the utility model are schematically shown in each figure, and they do not represent the actual structure of the product. In addition, in order to simplify the drawings and facilitate understanding, in some figures, only one of the parts with the same structure or function is schematically drawn or marked. In this article, "one" not only means "only one", but also means "more than one".

[0036] It should be further understood that the term “and / or” used in the specification and appended claims refers to any combination and all possible combinations of one or more of the associated listed items, and includes these combinations.

[0037] In this article, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it 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 indirectly connected 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 this utility model can be understood according to specific circumstances.

[0038] In addition, in the description of the present application, the terms "first", "second", etc. are only used to distinguish the description and cannot be understood as indicating or implying relative importance.

[0039] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the specific implementation methods of the utility model will be described below with reference to the accompanying drawings. Obviously, the accompanying drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings and other implementation methods can be obtained based on these drawings without creative work.

[0040] See also Figure 1 The present embodiment discloses an automatic demoulding mold, comprising an upper mold 1, a lower mold 3, a demoulding plate 2 and an automatic demoulding mechanism 4. The lower mold 3 is located below the upper mold 1, and the demoulding plate 2 is located between the upper mold 1 and the lower mold 3. The automatic demoulding mechanism 4 includes four first connecting seats 43 located at the four corners of both sides of the upper mold 1. A second connecting seat 44 fixed to the demoulding plate 2 and arranged in correspondence with the first connecting seat 43, four third connecting seats 45 arranged on the circumferential side of the demoulding plate 2, and a fourth connecting seat 46 arranged on the side of the lower mold 3 and arranged in correspondence with the third connecting seat 45.

[0041] See also Figures 2 to 5 The first connecting seat 43 is horizontally and laterally arranged at the four corners on both sides of the length direction of the upper mold 1, and the second connecting seat 44 includes a vertical plate 441 fixed to the stripper plate 2 and a horizontal plate 442 extending horizontally outward from the top of the vertical plate 441. The third connecting seat 45 is horizontally and laterally arranged at the four corners on both sides of the width direction of the stripper plate 2. The fourth connecting seat 46 is horizontally and laterally arranged at the four corners on both sides of the width direction of the lower mold 3. A first groove 431 is arranged on the upper surface of the first connecting seat 43, and a first wear-resistant pad 51 is arranged in the first groove 431, and the first wear-resistant pad 51 is fixed in the first groove 431 by bolts from top to bottom; a second groove 451 is arranged on the upper surface of the third connecting seat 45, and a second wear-resistant pad 52 is arranged in the second groove 451, and the second wear-resistant pad 52 is fixed in the second groove 451 by bolts from top to bottom.

[0042] The automatic demoulding mechanism 4 also includes a first connecting component 41 connecting the upper mold 1 and the demoulding plate 2 and a second connecting component 42 connecting the demoulding plate 22 and the lower mold 3. The first connecting component 41 includes a first connecting rod 411 vertically inserted into the first connecting seat 43 and a sleeve 414 sleeved on the first connecting rod 411 and inserted into the second connecting seat 44. A first limiting plate 412 is provided at the top end of the first connecting rod 411, and the first limiting plate 412 is supported on the first wear-resistant pad 51 in the first groove 431. A first limiting block 413 is provided at the bottom end of the first connecting rod 411, and the first limiting block 413 is located in the sleeve.

[0043] A threaded hole 61 is provided inwardly along the axial direction at the top end of the first connecting rod 411, and a through hole 64 is provided in the middle of the first limiting piece 412. A bolt 65 passes through the through hole 64 and is screwed into the threaded hole 61, thereby fixing the first limiting piece 412 to the top end of the first connecting rod 411. A threaded column 62 is extended outwardly along the axial direction at the bottom end of the first connecting rod 411, and the first limiting block 413 is locked on the threaded column 62. In other embodiments, in order to prevent the first limiting block 413 from loosening, a locking nut 63 may be added to the threaded column 62 to lock the first limiting block 413 on the threaded column 62.

[0044] The sleeve 414 includes a sleeve body 4141 inserted into the horizontal plate 442, an end cover 4142 disposed at the top of the sleeve body 4141, and a second stopper 4143 disposed at the bottom of the sleeve body 4141. The bottom end of the first connecting rod 11 passes through the end cover 4142 and extends into the sleeve body 4141. The first stopper 413 is located in the sleeve body 4141, and the diameter of the first stopper 413 is larger than the diameter of the first connecting rod 411 and smaller than the inner diameter of the sleeve body 4141. The end cover 4142 is supported on the second connecting seat 44.

[0045] The sleeve body 4141 is provided with threads at the top and bottom. The end cover 4142 includes a connecting portion 4142a threadedly connected to the top of the sleeve body 4141 and a covering portion 4142b for covering the top opening of the sleeve body 4141. The end cover 4142 is provided to prevent the first limit block 413 from sliding out of the sleeve body 4141 during the upward movement. At the same time, the bottom end surface of the connecting portion 4142a is supported on the cross plate 442, thereby supporting the entire sleeve 414 on the second connecting seat 44. The second limit block 4143 is threadedly connected to the bottom of the sleeve body 4141 and locked on the periphery of the sleeve body 4141. When the sleeve body 4141 rises to the point where the second limit block 4143 contacts the second connecting seat 44, the stripping plate 2 can be driven to move upward. The second limit block 4143 may adopt a locking nut. In other embodiments, in order to ensure that the second limit block 4143 does not loosen, a locking nut may be additionally provided under the second limit block 4143 to prevent the second limit block 4143 from loosening.

[0046] See also Figure 6 The second connecting component 42 includes a second connecting rod 421 vertically passing through the third connecting seat 45 and the fourth connecting seat 46, a second limiting plate 422 located at the top of the second connecting rod 421 and supported by the third connecting seat 45, and a third limiting plate 423 located at the bottom of the second connecting rod 421 and used to abut against the fourth connecting seat 46.

[0047] A threaded hole 61 is formed inwardly along the axial direction at the top end of the second connecting rod 421, and a through hole 64 is formed in the middle of the second limiting piece 422. A bolt 65 passes through the through hole and is screwed into the threaded hole 61, thereby fixing the second limiting piece 422 to the top end of the second connecting rod 421. A threaded column 62 is extended outwardly along the axial direction at the bottom end of the second connecting rod 421, and a third limiting piece 423 is sleeved on the threaded column 62 and locked by a locking nut 63. The second limiting piece 422 is supported on the second wear-resistant pad 52.

[0048] See also Figures 7 to 9 In the mold opening process, when the upper mold moves upward, while the upper mold is demoulding, the first limiting piece 412 is supported on the first wear-resistant pad 51, and the first connecting rod 411 is driven to move upward through the first connecting seat 43. When the first limiting block 413 at the bottom of the first connecting rod 411 moves upward to abut against the cover portion 4142b of the end cover 4142, the sleeve 414 moves upward to abut against the second limiting block 4143 and the second connecting seat 44, and then drives the demoulding plate 2 to move upward through the second connecting seat 44 to demould the lower mold 3. At this time, the second limiting piece 422 is supported on the second wear-resistant pad 52, and drives the second connecting rod 421 to move upward through the third connecting seat 45.

[0049] The first connecting rod 11 is retractably arranged in the sleeve 414, which increases the mold removal space between the upper mold 1 and the stripping plate 2, so that the lost foam pattern can be removed stably, quickly and completely, improving production efficiency and reducing production costs. The second connecting rod plays a guiding and limiting role when opening and closing the mold, facilitating accurate and rapid mold opening and closing, making the demoulding process more stable and efficient, and also improving the quality of the lost foam pattern.

[0050] It will be apparent to those skilled in the art that various modifications and variations can be made to the above exemplary embodiments of the present invention without departing from the spirit and scope of the present invention. Therefore, it is intended that the present invention covers modifications and variations of the present invention that fall within the scope of the appended claims and their equivalent technical solutions.

Claims

1. A mold with automatic demoulding, characterized in that: include: upper mold; A lower die, the lower die being located below the upper die; A stripping plate, the stripping plate being located between the upper die and the lower die; An automatic demoulding mechanism, the automatic demoulding mechanism comprising a first connecting seat arranged on both sides of the upper mold, a second connecting seat fixed to the demoulding plate and arranged corresponding to the first connecting seat up and down, and a first connecting component connecting the upper mold and the demoulding plate, the first connecting component comprising a first connecting rod vertically inserted in the first connecting seat and a sleeve sleeved on the first connecting rod and inserted in the second connecting seat, the first connecting rod being able to slide up and down in the sleeve; During the mold opening process, when the upper mold moves upward, the upper mold is demolded while the first connecting seat drives the first connecting rod to move upward. When the bottom end of the first connecting rod moves up to abut against the top of the sleeve, it drives the sleeve to move upward. The sleeve then drives the demolding plate upward through the second connecting seat to demold the lower mold.

2. The automatic demoulding mold according to claim 1, characterized in that: A first limiting plate is provided at the top end of the first connecting rod, and the first limiting plate is supported on the first connecting seat. A first limiting block is provided at the bottom end of the first connecting rod, and the diameter of the first limiting block is larger than the diameter of the first connecting rod and smaller than the inner diameter of the sleeve.

3. The automatic demoulding mold according to claim 2, characterized in that: The sleeve includes a sleeve body inserted into the second connecting seat, an end cover arranged at the top of the sleeve body and a second limit block arranged at the bottom of the sleeve body, the bottom end of the first connecting rod passes through the end cover and extends into the sleeve body, and the end cover is supported on the second connecting seat.

4. The automatic demoulding mold according to claim 3, characterized in that: The top of the sleeve body is provided with a thread, and the end cover includes a connecting portion threadedly connected to the top of the sleeve and a covering portion used to cover the opening on the top of the sleeve, and the covering portion is used to abut against the first limit block.

5. The automatic demoulding mold according to claim 4, characterized in that: The bottom of the sleeve body is provided with a thread, and the second limit block is threadably connected to the sleeve body and is locked around the outside of the sleeve body.

6. The automatic demoulding mold according to claim 5, characterized in that: A threaded hole is axially inwardly provided at the top end of the first connecting rod, and a through hole is provided in the middle of the first limiting plate. A bolt passes through the through hole and is screwed into the threaded hole, thereby fixing the first limiting plate to the top end of the first connecting rod.

7. The automatic demoulding mold according to claim 6, characterized in that: A threaded column is axially extended outward from the bottom end of the first connecting rod, and the first limiting block is locked on the threaded column.

8. The automatic demoulding mold according to claim 7, characterized in that: The first connecting seat is horizontally arranged at the four corners on both sides of the length direction of the upper mold. The upper surface of the first connecting seat is provided with a first groove, and a first wear-resistant pad is arranged in the first groove. The first limiting piece is supported on the first wear-resistant pad.

9. The automatic demoulding mold according to claim 8, characterized in that: The automatic demoulding mechanism also includes a third connecting seat arranged on both sides of the demoulding plate in the width direction, a fourth connecting seat arranged on the side of the lower mold and corresponding to the third connecting seat above and below, and a second connecting component connecting the demoulding plate and the lower mold, the second connecting component includes a second connecting rod vertically passing through the third connecting seat and the fourth connecting seat, a second limiting plate located at the top of the second connecting rod and supported by the third connecting seat, and a third limiting plate located at the bottom of the second connecting rod and used to abut against the fourth connecting seat.

10. The automatic demoulding mold according to claim 9, characterized in that: The third connecting seat is horizontally arranged at the four corners on both sides of the stripping plate in the width direction. The upper surface of the third connecting seat is provided with a second groove, and a second wear-resistant pad is provided in the second groove. The third limiting piece is supported on the second wear-resistant pad.

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