Washing machine dehydration cover multi-water channel rapid cooling mechanism

Abstract

The utility model provides a multi-water channel rapid cooling mechanism for a washing machine dehydration cover plate, which belongs to the field of mold technology. It includes an upper template and a lower template, a molding cavity is arranged between the upper template and the lower template, a connecting shaft fixing plate molding structure is arranged on one side of the molding cavity, a molding protrusion with four vertical parting surfaces is protruded on the lower template, and an internal and external synchronous ejection mechanism connected to the molding cavity is also arranged on the lower side of the lower template. The molding cavity between the upper template and the lower template can be used for injection molding to form a washing machine dehydration cover plate, and four undercuts of the cover plate can be formed at the four vertical parting surfaces of the molding protrusion. The internal and external synchronous ejection mechanism can simultaneously apply thrust to the inner end face and the undercut position of the cover plate during demoulding, thereby preventing the undercut part from being pulled, deformed or broken due to uneven force when the cover plate is ejected, and the connecting shaft fixing plate molding structure can once mold a connecting shaft fixing plate for installing the cover plate during injection molding of the cover plate.

Description

Technical Field

[0001] The utility model belongs to the technical field of molds and relates to a multi-water-channel rapid cooling mechanism for a dehydration cover plate of a washing machine. Background Art

[0002] The dehydration cover of the washing machine is generally formed by injection molding. The ejection mechanism of the existing dehydration cover mold of the washing machine is generally formed by applying a thrust to the inner end surface of the dehydration cover of the washing machine. However, since there is an inwardly bent undercut on the edge of the cover, and the undercut is formed at the vertical parting surface of the lower template, when the inner end surface of the cover is subjected to a thrust, the undercut part is adhered to the vertical parting surface and thus receives a large pulling force, which may cause the undercut position of the cover to deform or break, thereby reducing the qualified rate of the product.

[0003] For example, a Chinese patent discloses a new precision mold for a washing machine cover [application number: 202321102284.6], which includes a mold body, which includes a water inlet, a push rod, a telescopic rod, a spring and a pneumatic rod. A water outlet is provided at one end of the mold body, and a water inlet is provided at the other end of the mold body. Both sides of the mold body are connected to the top of the pneumatic rod, and the bottom of the pneumatic rod is installed at both ends of the top of the bottom plate. A telescopic rod is installed on the top of the bottom plate, and the top of the telescopic rod is welded to the bottom of the lifting block. Utility Model Content

[0004] The utility model aims to solve the above problems and provides a multi-water-path rapid cooling mechanism for a dehydration cover plate of a washing machine.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A multi-water-channel rapid cooling mechanism for a dehydration cover plate of a washing machine comprises an upper template and a lower template, a molding cavity is arranged between the upper template and the lower template, a connecting shaft fixing plate molding structure is arranged on one side of the molding cavity, a molding convex block with four vertical parting surfaces is protruded from the lower template, and an internal and external synchronous ejection mechanism connected to the molding cavity is also arranged on the lower side of the lower template.

[0007] In the above-mentioned washing machine dehydration cover plate multi-water channel rapid cooling mechanism, the internal and external synchronous ejection mechanism includes a top plate arranged on the lower side of the lower template, and the top plate is connected to the external parting surface ejection component and the internal ejection component.

[0008] In the above-mentioned washing machine dehydration cover plate multi-water channel rapid cooling mechanism, the outer parting surface ejection assembly includes three long strip ejector blocks, and the three long strip ejector blocks are respectively arranged on the other three side parts of the molding cavity except the side where the connecting shaft fixing plate molding structure is arranged, and the long strip ejector blocks are arranged on the outside of the vertical parting surface, and the long strip ejector blocks are connected to the top plate through a plurality of ejector block ejector rods.

[0009] In the above-mentioned washing machine dehydration cover plate multi-water channel rapid cooling mechanism, the elongated top block is arranged at the bottom of the vertical parting surface and the inner side wall of the elongated top block abuts against the vertical parting surface.

[0010] In the above-mentioned washing machine dehydration cover plate multi-water channel rapid cooling mechanism, the long strip top block and the top block top rod are detachably connected by bolts.

[0011] In the above-mentioned washing machine dehydration cover plate multi-water channel rapid cooling mechanism, the external parting surface ejection assembly also includes two inclined ejector blocks arranged on the side of the molding cavity close to the connecting shaft fixing plate molding structure, the two inclined ejector blocks are arranged obliquely and the bottom of the inclined ejector blocks is hinged to the top plate, and an arc-shaped ejector block with an arc-shaped cross-section is also provided at the arc-shaped corner of the molding cavity, the arc-shaped ejector block is arranged vertically and the bottom is fixedly connected to the top plate.

[0012] In the above-mentioned washing machine dehydration cover plate multi-water channel rapid cooling mechanism, the inner ejector assembly includes a plurality of vertically arranged straight ejector rods, and the bottom of the straight ejector rods is fixedly connected to the top plate, and the connection between the straight ejector rods and the molding cavity is located on the inner side of the vertical parting surface.

[0013] In the above-mentioned washing machine dehydration cover multi-water channel rapid cooling mechanism, the connecting shaft fixing plate forming structure includes a connecting shaft fixing plate forming groove which is recessed inwardly and arranged on the upper template, and a connecting shaft fixing plate forming block which is protrudingly arranged on the lower template and is inserted into the connecting shaft fixing plate forming groove, the inner end of the connecting shaft fixing plate forming block is connected to the vertical parting surface of the forming protrusion, and a forming gap is provided between the side walls of the connecting shaft fixing plate forming block and the inner walls of the connecting shaft fixing plate forming groove, a connecting shaft forming groove is also provided between the connecting shaft fixing plate forming block and the connecting shaft fixing plate forming groove, and a vertical top block is also provided on one side of the connecting shaft fixing plate forming block, and the vertical top block is located outside the vertical parting surface and the inner end of the vertical top block is against the vertical parting surface.

[0014] In the above-mentioned washing machine dehydration cover plate multi-water channel rapid cooling mechanism, the side of the molding protrusion is also circumferentially provided with a plurality of inwardly recessed reinforcing rib plate molding grooves, the openings of the reinforcing rib plate molding grooves are located at the top of the molding protrusion and the vertical parting surface, and the lower template is also detachably provided with a molding insert by means of a plurality of bolts, the molding protrusion is located at the top of the molding insert, and the molding protrusion and the molding insert are integrally formed.

[0015] In the above-mentioned washing machine dehydration cover plate multi-water channel rapid cooling mechanism, a plurality of parallel cooling water channels are also provided in the molding insert.

[0016] Compared with the existing technology, the advantages of the utility model are:

[0017] 1. The molding cavity between the upper template and the lower template can be used for injection molding to form a washing machine dehydration cover plate. Four undercuts of the cover plate can be formed at the four vertical parting surfaces of the molding protrusion. The internal and external synchronous ejection mechanism can simultaneously apply thrust to the inner end surface and the undercut position of the cover plate during demoulding to prevent the undercut part from being pulled, deformed or broken due to uneven force when the cover plate is ejected. The connecting shaft fixing plate molding structure can form a connecting shaft fixing plate for installing the cover plate at one time during the injection molding of the cover plate.

[0018] 2. The external parting surface ejection assembly and the internal ejection assembly can respectively apply thrust to the undercut position of the cover plate and the inner end surface of the cover plate at the same time, thereby preventing the undercut part from being pulled, deformed or broken due to uneven force when the cover plate is ejected.

[0019] Other advantages, objectives and features of the present invention will be embodied in part through the following description, and in part will be understood by those skilled in the art through research and practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a cross-sectional view of the utility model;

[0021] Figure 2 It is a structural diagram of the lower template;

[0022] Figure 3 It is a schematic diagram of the local structure of the lower template;

[0023] Figure 4 is a perspective view of the molding insert;

[0024] Figure 5 It is a structural diagram of the upper template.

[0025] In the figure, an upper template 1, a lower template 2, a molding cavity 3, a connecting shaft fixing plate molding structure 4, a vertical parting surface 5, a molding protrusion 6, a top plate 7, an outer parting surface ejection assembly 8, an inner ejection assembly 9, a long strip ejector block 10, an ejector block ejector rod 11, an inclined ejector block 12, an arc-shaped ejector block 13, a straight ejector rod 14, a connecting shaft fixing plate molding groove 15, a connecting shaft fixing plate molding block 16, a connecting shaft molding groove 17, a vertical ejector block 18, a reinforcing rib plate molding groove 19, a molding insert 20, and a cooling water channel 21. DETAILED DESCRIPTION

[0026] like Figure 1-Figure 5 As shown, a multi-water-channel rapid cooling mechanism for a dehydration cover plate of a washing machine comprises an upper template 1 and a lower template 2, a molding cavity 3 is arranged between the upper template 1 and the lower template 2, a connecting shaft fixing plate molding structure 4 is arranged on one side of the molding cavity 3, a molding protrusion 6 with four vertical parting surfaces 5 is protruded on the lower template 2, and an internal and external synchronous ejection mechanism connected to the molding cavity 3 is also arranged on the lower side of the lower template 2.

[0027] In the utility model, the molding cavity 3 between the upper template 1 and the lower template 2 can be used for injection molding to form the dehydration cover plate of the washing machine. Four undercuts of the cover plate can be formed at the four vertical parting surfaces of the molding protrusion. The internal and external synchronous ejection mechanism can simultaneously apply thrust to the inner end surface and the undercut position of the cover plate during demolding to prevent the undercut part from being pulled, deformed or broken due to uneven force when the cover plate is ejected. The connecting shaft fixing plate molding structure 4 can form a connecting shaft fixing plate for installing the cover plate at one time during injection molding of the cover plate.

[0028] Specifically, the internal and external synchronous ejection mechanism includes a top plate 7 arranged at the lower side of the lower mold plate 2, and the top plate 7 is connected with an external parting surface ejection assembly 8 and an internal ejection assembly 9. The external parting surface ejection assembly 8 and the internal ejection assembly 9 can respectively apply thrust to the undercut position of the cover plate and the inner end surface of the cover plate at the same time, thereby preventing the undercut part from being pulled, deformed or broken due to uneven force when the cover plate is ejected.

[0029] Specifically, the outer parting surface ejection assembly 8 includes three long strip ejector blocks 10, which are respectively arranged on the other three sides of the molding cavity 3 except the side where the connecting shaft fixing plate molding structure 4 is arranged, and the long strip ejector blocks 10 are arranged outside the vertical parting surface 5, and the long strip ejector blocks 10 are connected to the top plate 7 through a plurality of ejector block ejector rods 11, and the long strip ejector blocks 10 are arranged at the bottom of the vertical parting surface 5 and the inner side walls of the long strip ejector blocks 10 are against the vertical parting surface 5. When the top plate moves upward, the ejector block ejector rods can drive the long strip ejector blocks to move upward, so as to apply thrust to the undercut positions of the other three sides except the side of the connecting shaft fixing plate molding structure 4.

[0030] Preferably, the long strip top block 10 and the top block top rod 11 are detachably connected by bolts to facilitate the separation of the long strip top block and the top block top rod.

[0031] Specifically, the external parting surface ejection assembly 8 also includes two inclined ejector blocks 12 arranged on one side of the molding cavity 3 near the connecting shaft fixing plate molding structure 4, the two inclined ejector blocks 12 are arranged obliquely and the bottom of the inclined ejector blocks 12 is hinged to the top plate 7, and the arc-shaped corner of the molding cavity 3 is also provided with an arc-shaped arc-shaped ejector block 13, which is arranged vertically and the bottom is fixedly connected to the top plate 7. When the top plate moves upward, it can also drive the inclined ejector block to move obliquely upward so as to apply thrust to the undercut position on one side of the connecting shaft fixing plate molding structure 4, and when the top plate moves upward, it can also apply thrust to the arc corner position of the cover plate through the arc-shaped ejector block 13.

[0032] Specifically, the inner ejector assembly 9 includes a plurality of vertically arranged straight ejector rods 14, and the bottom of the straight ejector rods 14 is fixedly connected to the top plate 7, and the connection between the straight ejector rods 14 and the molding cavity 3 is located on the inner side of the vertical parting surface 5. When the top plate moves upward, it can drive the plurality of straight ejector rods to move upward, thereby applying thrust to the inner end surface of the cover plate.

[0033] Specifically, the connecting shaft fixing plate forming structure 4 includes a connecting shaft fixing plate forming groove 15 which is recessed inwardly on the upper template 1, and a connecting shaft fixing plate forming block 16 which is protrudingly provided on the lower template 2 and is inserted into the connecting shaft fixing plate forming groove 15. The inner end of the connecting shaft fixing plate forming block 16 is connected to the vertical parting surface 5 of the forming protrusion 6, and there is a forming gap between the side walls of the connecting shaft fixing plate forming block 16 and the inner walls of the connecting shaft fixing plate forming groove 15. A connecting shaft forming groove 17 is also provided between the connecting shaft fixing plate forming block 16 and the connecting shaft fixing plate forming groove 15. A vertical top block 18 is also provided on one side of the connecting shaft fixing plate forming block 16, and the vertical top block 18 is located on the outside of the vertical parting surface 5 and the inner end of the vertical top block 18 is against the vertical parting surface 5. The molding gap formed between the connecting shaft fixing plate molding block 16 and the connecting shaft fixing plate molding groove 15 can form a connecting shaft fixing plate on the side of the cover plate at one time during the cover plate injection molding, and the connecting shaft molding groove 17 can form a connecting shaft on the connecting shaft fixing plate without the need for subsequent processing.

[0034] Specifically, the side of the molding protrusion 6 is also provided with a plurality of inwardly recessed reinforcing rib plate forming grooves 19 along the circumferential direction, the opening of the reinforcing rib plate forming grooves 19 is located at the top of the molding protrusion 6 and the vertical parting surface 5, and the lower template 2 is also provided with a forming insert 20 detachably provided by a plurality of bolts, the molding protrusion 6 is located at the top of the forming insert 20, and the molding protrusion 6 and the forming insert 20 are integrally formed. The reinforcing rib plate forming grooves 19 can form reinforcing plate ribs between the undercut and the inner end surface of the cover plate.

[0035] Preferably, a plurality of parallel cooling water channels 21 are provided in the molding insert 20 , and injecting coolant into the cooling water channels can cool the injection liquid in the molding cavity.

[0036] The working principle of the utility model is as follows: the molding cavity 3 between the upper mold plate 1 and the lower mold plate 2 can be used for injection molding to form the washing machine dehydration cover plate, and four undercuts of the cover plate can be formed at the four vertical parting surfaces of the molding protrusions. The internal and external synchronous ejection mechanism can simultaneously apply thrust to the inner end surface and the undercut position of the cover plate during demoulding, thereby preventing the undercut position from being pulled, deformed or broken due to uneven force when the cover plate is ejected. The connecting shaft fixing plate molding structure 4 can once mold a connecting shaft fixing plate for installing the cover plate during injection molding of the cover plate.

[0037] The outer parting surface ejection assembly 8 and the inner ejection assembly 9 can respectively apply thrust to the undercut position of the cover plate and the inner end surface of the cover plate at the same time, so as to prevent the undercut part from being pulled, deformed or broken due to uneven force when the cover plate is ejected. When the top plate moves upward, the long strip top block can be driven upward by the top block and the top rod, so as to apply thrust to the undercut positions of the other three sides except one side of the connecting shaft fixing plate forming structure 4. When the top plate moves upward, it can also drive the inclined top block to move obliquely upward, so as to apply thrust to the undercut position on one side of the connecting shaft fixing plate forming structure 4. When the top plate moves upward, it can also apply thrust to the arc corner position of the cover plate through the arc top block 13. When the top plate moves upward, it can drive a number of straight top rods to move upward, so as to apply thrust to the inner end surface of the cover plate.

[0038] The molding gap formed between the connecting shaft fixing plate molding block 16 and the connecting shaft fixing plate molding groove 15 can form a connecting shaft fixing plate on the side of the cover plate at one time during the cover plate injection molding. The connecting shaft molding groove 17 can form a connecting shaft on the connecting shaft fixing plate without the need for subsequent processing. The reinforcing rib plate molding groove 19 can form a reinforcing plate rib between the undercut and the inner end surface of the cover plate. Injecting coolant into the cooling water channel can cool the injection liquid in the molding cavity.

[0039] The specific embodiments described herein are merely examples of the spirit of the present invention. Those skilled in the art may make various modifications or additions to the specific embodiments described or replace them in similar ways, but they will not deviate from the spirit of the present invention or exceed the scope defined by the appended claims.

[0040] Although this article uses the upper template 1, lower template 2, molding cavity 3, connecting shaft fixing plate molding structure 4, vertical parting surface 5, molding protrusion 6, top plate 7, external parting surface ejection assembly 8, internal ejection assembly 9, long strip ejector block 10, ejector block ejector rod 11, inclined ejector block 12, arc ejector block 13, straight ejector rod 14, connecting shaft fixing plate molding groove 15, connecting shaft fixing plate molding block 16, connecting shaft molding groove 17, vertical ejector block 18, reinforcing rib plate molding groove 19, molding insert 20, cooling water channel 21, etc. more frequently, these terms are used only to more conveniently describe and explain the essence of the utility model; interpreting them as any additional restrictions is contrary to the spirit of the utility model.

Claims

1. A multi-channel rapid cooling mechanism for a washing machine dehydration cover plate, comprising an upper template (1) and a lower template (2), characterized in that: A molding cavity (3) is provided between the upper mold plate (1) and the lower mold plate (2); a connecting shaft fixing plate molding structure (4) is provided on one side of the molding cavity (3); a molding protrusion (6) having four vertical parting surfaces (5) is protruded from the lower mold plate (2); and an internal and external synchronous ejection mechanism connected to the molding cavity (3) is also provided on the lower side of the lower mold plate (2).

2. The multi-channel rapid cooling mechanism for a washing machine dehydration cover according to claim 1, characterized in that: The internal and external synchronous ejection mechanism comprises a top plate (7) arranged on the lower side of the lower mold plate (2), and the top plate (7) is connected to an external parting surface ejection component (8) and an internal ejection component (9).

3. The multi-channel rapid cooling mechanism for a washing machine dehydration cover plate according to claim 2, characterized in that: The outer parting surface ejection assembly (8) comprises three long strip ejector blocks (10), which are respectively arranged on the other three side parts of the molding cavity (3) except the side where the connecting shaft fixing plate molding structure (4) is arranged, and the long strip ejector blocks (10) are arranged on the outside of the vertical parting surface (5), and the long strip ejector blocks (10) are connected to the ejector plate (7) through a plurality of ejector block ejector rods (11).

4. The multi-channel rapid cooling mechanism for a washing machine dehydration cover plate according to claim 3, characterized in that: The long strip top block (10) is arranged at the bottom of the vertical parting surface (5), and the inner side wall of the long strip top block (10) abuts against the vertical parting surface (5).

5. The multi-channel rapid cooling mechanism for a washing machine dehydration cover plate according to claim 4, characterized in that: The long strip top block (10) and the top block top rod (11) are detachably connected via bolts.

6. The multi-channel rapid cooling mechanism for a washing machine dehydration cover plate according to claim 5, characterized in that: The external parting surface ejection assembly (8) further comprises two inclined ejector blocks (12) arranged on one side of the molding cavity (3) close to the connecting shaft fixing plate molding structure (4); the two inclined ejector blocks (12) are arranged at an angle and the bottom of the inclined ejector blocks (12) is hinged to the top plate (7); an arcuate ejector block (13) having an arcuate cross section is also arranged at the arcuate corner of the molding cavity (3); the arcuate ejector block (13) is arranged vertically and the bottom is fixedly connected to the top plate (7).

7. The multi-channel rapid cooling mechanism for a washing machine dehydration cover plate according to claim 6, characterized in that: The inner ejector assembly (9) comprises a plurality of vertically arranged straight ejector rods (14), the bottom of the straight ejector rods (14) being fixedly connected to the top plate (7), and the connection between the straight ejector rods (14) and the molding cavity (3) is located on the inner side of the vertical parting surface (5).

8. The multi-channel rapid cooling mechanism for a washing machine dehydration cover plate according to claim 7, characterized in that: The connecting shaft fixing plate forming structure (4) comprises a connecting shaft fixing plate forming groove (15) which is recessed inwardly and arranged on the upper template (1); a connecting shaft fixing plate forming block (16) which is protrudingly arranged on the lower template (2) and is inserted into the connecting shaft fixing plate forming groove (15); the inner end of the connecting shaft fixing plate forming block (16) is connected to the vertical parting surface (5) of the forming protrusion (6); a forming gap is provided between the side walls of the connecting shaft fixing plate forming block (16) and the inner walls of the side walls of the connecting shaft fixing plate forming groove (15); a connecting shaft forming groove (17) is further provided between the connecting shaft fixing plate forming block (16) and the connecting shaft fixing plate forming groove (15); a vertical top block (18) is further provided on one side of the connecting shaft fixing plate forming block (16); the vertical top block (18) is located outside the vertical parting surface (5) and the inner end of the vertical top block (18) is against the vertical parting surface (5).

9. The multi-channel rapid cooling mechanism for a washing machine dehydration cover plate according to claim 8, characterized in that: The side of the molding protrusion (6) is also provided with a plurality of inwardly recessed reinforcing rib plate molding grooves (19) along the circumferential direction, and the openings of the reinforcing rib plate molding grooves (19) are located at the top of the molding protrusion (6) and the vertical parting surface (5). The lower template (2) is also provided with a molding insert (20) detachably via a plurality of bolts, and the molding protrusion (6) is located at the top of the molding insert (20), and the molding protrusion (6) and the molding insert (20) are integrally formed.

10. The multi-channel rapid cooling mechanism for a washing machine dehydration cover plate according to claim 9, characterized in that: The molding insert (20) is also provided with a plurality of cooling water channels (21) arranged in parallel.

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