Washing machine handle support mold

Abstract

The utility model relates to the technical field of handle supports, in particular to a washing machine handle support mold which comprises an upper mold and a lower mold, and after the upper mold and the lower mold are assembled, an injection molding cavity is formed between the upper mold and the lower mold. The inner sliding block is arranged on the upper mold in a sliding manner and can extend into the injection molding cavity in a sliding manner so as to clamp a barb-containing position of the handle bracket of the washing machine; the auxiliary inner sliding block demolding assembly is used for driving the inner sliding block to move back and forth and comprises an oil cylinder, a second sliding block which is connected with the oil cylinder and is driven by the oil cylinder, a first sliding block which is in sliding fit with the second sliding block through an inclined surface, and a guide block which is arranged on the side wall of the upper mold and is used for accommodating the second sliding block; the first sliding block is fixedly connected with the inner sliding block, and the moving direction of the oil cylinder is perpendicular to the moving direction of the inner sliding block. According to the washing machine handle support mold, the mold locking force of the oil cylinder on the inner sliding block can be increased, and demolding of the inner sliding block can be achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of handle brackets, and in particular to a mold for a washing machine handle bracket. Background Art

[0002] The washing machine handle bracket is a component in the design of a washing machine, used to fix and support the operating handle of the washing machine; this bracket is usually located at the top or front of the washing machine to ensure the stability of the handle and the safety during operation. The existing mold for the washing machine handle bracket has an undercut on the outer appearance of the upper mold, adopts an internal slider in a tunnel, and has a mold structure with the mold opening and clamping directly driven by an oil cylinder. Since the washing machine handle bracket is an appearance part, the injection pressure is relatively large, and the internal slider is subjected to a relatively large pressure. When the pressure on the internal slider is greater than the clamping force of the oil cylinder, the parting line difference of the internal slider of the washing machine handle bracket appearance will increase, affecting the appearance quality of the product. Seriously, the plastic will overflow into the inside of the internal slider, causing the mold to be unable to produce normally and the mold to be damaged.

[0003] Therefore, it is crucial to provide a mold for a washing machine handle bracket that can solve the above problems. Summary of the Utility Model

[0004] In order to solve the above problems, the purpose of the utility model is to provide a mold for a washing machine handle bracket. The mold for the washing machine handle bracket is suitable for the injection molding of a washing machine handle bracket with a relatively large projected area of the upper mold slider and a large injection force.

[0005] The purpose of the utility model can be achieved through the following technical solutions:

[0006] The utility model provides a mold for a washing machine handle bracket, which is used to produce a washing machine handle bracket with an undercut on the appearance, and includes an upper mold and a lower mold. After the upper mold and the lower mold are closed, an injection cavity is formed between the two. It further includes:

[0007] An internal slider that is slidably arranged on the upper mold and can slide into the injection cavity to clamp the undercut position of the washing machine handle bracket;

[0008] And an auxiliary internal slider demolding component for driving the internal slider to move back and forth, which includes an oil cylinder, a second slider connected to the oil cylinder and driven by it, a first slider that is slidably matched with the second slider through an inclined plane, and a guide block arranged on the side wall of the upper mold for accommodating the second slider. The first slider is fixedly connected to the internal slider, and the moving direction of the oil cylinder is perpendicular to the moving direction of the internal slider.

[0009] In an embodiment of the utility model, a first groove with a "T" - shaped longitudinal section is arranged on the side of the first slider connected to the internal slider;

[0010] The position where the inner slider is connected to the first slider is an inlay block adapted to the first groove;

[0011] Among them, the first groove is arranged in a "T" shape to enhance the connection stability between the inner slider and the first slider and prevent the two from falling off during the movement process.

[0012] In an embodiment of the present utility model, a second groove with a "T"-shaped longitudinal section is provided on one side where the first slider is connected to the second slider;

[0013] The second groove is an inclined groove, and the length of the second groove close to the oil cylinder is greater than the length away from the oil cylinder;

[0014] Among them, the second groove is arranged in a "T" shape to enhance the connection stability between the first slider and the second slider and prevent the two from falling off during the movement process.

[0015] In an embodiment of the present utility model, an inclined inlay block adapted to the second groove is provided at the position where the second slider is connected to the first slider.

[0016] In an embodiment of the present utility model, an oil cylinder pressing plate is provided between the guiding block and the oil cylinder.

[0017] In an embodiment of the present utility model, a guiding hole allowing the output shaft of the oil cylinder to extend is provided on the oil cylinder pressing plate, and the output shaft of the oil cylinder is inlaid and connected with the second slider through the guiding hole.

[0018] In an embodiment of the present utility model, the inner diameter of the guiding hole is 1-3 mm larger than the outer diameter of the output shaft.

[0019] In an embodiment of the present utility model, a cylindrical third groove is provided on one side where the second slider is connected to the oil cylinder, and the output shaft of the oil cylinder is adapted to the third groove.

[0020] In an embodiment of the present utility model, a clamping groove is provided on the inner wall of the third groove, and a clamping block adapted to the clamping groove is provided on the side surface of the output shaft of the oil cylinder;

[0021] Among them, the setting of the clamping block is to enhance the connection stability between the second slider and the output shaft of the oil cylinder.

[0022] In an embodiment of the present utility model, the length of the second slider close to the oil cylinder is greater than the length away from the oil cylinder;

[0023] When the output shaft of the oil cylinder extends, the second slider drives the first slider and then drives the inner slider to move towards the side away from the guiding block;

[0024] When the output shaft of the oil cylinder contracts, the second slider drives the first slider, which in turn drives the inner slider to move towards the side close to the inner slider, thereby realizing the demolding of the inner slider.

[0025] In an embodiment of the present utility model, a guide groove for accommodating the second slider is provided on the side of the guide block close to the inner slider, and the depth of the guide groove is greater than the length of the second slider on the side close to the oil cylinder.

[0026] During use, when injection molding is required, the upper mold and the lower mold are placed in the injection molding machine. After closing the mold, the oil cylinder is used to control the side of the second slider away from the oil cylinder to closely adhere to the inner wall of the guide groove (ensuring that the inner slider during the production process of the washing machine handle bracket will not move towards the side close to the guide block under the action of the injection molding force); when the injection molding machine completes injection molding, pressure holding, and the mold has cooled, the demolding of the inner slider is carried out as follows:

[0027] The oil cylinder is used to control the second slider to move towards the side close to the oil cylinder. Since the second slider is obliquely fitted and connected with the first slider, and the length of the second slider on the side close to the oil cylinder is greater than the length of the side away from the oil cylinder, the movement of the second slider can drive the first slider, which in turn drives the inner slider to move towards the side close to the guide block, thereby realizing the demolding of the inner slider.

[0028] Compared with the prior art, the present utility model has the following beneficial effects:

[0029] A washing machine handle bracket mold of the present utility model utilizes the principle of force decomposition to increase the clamping force of the oil cylinder on the inner slider. The inner slider during the production process of the washing machine handle bracket will not move backward under the action of the injection molding force. Therefore, a washing machine handle bracket with a small step difference and a small parting line can be obtained; at the same time, through the coordinated cooperation of the oil cylinder, the first slider, and the second slider, the demolding of the inner slider can be realized. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 It is a cross-sectional view (mold closing state) of a washing machine handle bracket described in Embodiment 1;

[0031] Figure 2 It is along Figure 1 A schematic diagram of the cross-section A-A in;

[0032] Figure 3 It is a cross-sectional view (mold opening state) of a washing machine handle bracket described in Embodiment 1;

[0033] Figure 4 It is along Figure 3 A schematic diagram of the cross-section B-B in;

[0034] Figure 5 It is a structural schematic diagram of a washing machine handle bracket with an undercut;

[0035] Figure 6 is a schematic view of the C-C cross-section along Figure 5 in;

[0036] Reference numerals in the figure: 1, washing machine handle bracket; 2, upper die; 3, lower die; 4, inner slider; 5, first slider; 6, second slider; 7, guide block; 8, guide groove; 9, oil cylinder pressing plate; 10, oil cylinder; 11, undercut. Specific embodiments

[0037] The present utility model will be described in detail below with reference to the accompanying drawings and specific embodiments.

[0038] In the description of the present utility model, unless otherwise clearly defined and limited, the terms "connected", "connected to", and "fixed" should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or integrated; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the communication inside two elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific situations.

[0039] In the present utility model, unless otherwise clearly defined and limited, the first feature being "above" or "below" the second feature may include the first and second features being in direct contact, or may include the first and second features not being in direct contact but being in contact through other features therebetween. Moreover, the first feature being "above", "above", and "on" the second feature includes the first feature being directly above and obliquely above the second feature, or merely indicating that the first feature has a higher horizontal height than the second feature. The first feature being "below", "below", and "under" the second feature includes the first feature being directly below and obliquely below the second feature, or merely indicating that the first feature has a lower horizontal height than the second feature.

[0040] In the description of this embodiment, the orientation or positional relationship terms such as "above", "below", "left", and "right" are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of description and simplifying the operation, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus cannot be understood as a limitation to the present utility model. In addition, the terms "first" and "second" are only used for distinction in description and have no special meaning.

[0041] In the following embodiments, unless otherwise specified, the components or structures used are conventional components or structures in the art, as long as they can achieve the corresponding functions.

[0042] Embodiment 1

[0043] This embodiment provides a mold for a washing machine handle bracket, as Figures 1 to 4As shown, it is used to produce the washing machine handle bracket 1 with an undercut 11 on its appearance (such as Figures 5 to 6 shown), including an upper mold 2 and a lower mold 3. After the upper mold 2 and the lower mold 3 are closed, an injection cavity is formed between them. This washing machine handle bracket mold further includes:

[0044] An inner slider 4 that is slidably arranged on the upper mold 2 and can slide into the injection cavity to clamp the position of the undercut 11 of the washing machine handle bracket 1;

[0045] And an auxiliary inner slider demolding assembly for driving the inner slider 4 to move back and forth, which includes an oil cylinder 10, a second slider 6 connected to the oil cylinder 10 and driven by it, a first slider 5 slidably matched with the second slider 6 through an inclined surface, a guide block 7 arranged on the side wall of the upper mold 2 and used to accommodate the second slider 6. The first slider 5 is fixedly connected to the inner slider 4, and the moving direction of the oil cylinder 10 is perpendicular to the moving direction of the inner slider 4.

[0046] Furthermore, on one side of the first slider 5 connected to the inner slider 4, there is a first groove with a "T"-shaped longitudinal section. The position where the inner slider 4 is connected to the first slider 5 is an insert block adapted to the first groove;

[0047] Among them, the first groove is arranged in a "T" shape to enhance the connection stability between the inner slider 4 and the first slider 5 and prevent the two from falling off during the movement process.

[0048] Furthermore, on one side of the first slider 5 connected to the second slider 6, there is a second groove with a "T"-shaped longitudinal section. The second groove is an inclined groove, and the length of the second groove on the side close to the oil cylinder 10 is greater than the length on the side far from the oil cylinder 10;

[0049] Among them, the second groove is arranged in a "T" shape to enhance the connection stability between the first slider 5 and the second slider 6 and prevent the two from falling off during the movement process.

[0050] Furthermore, at the position where the second slider 6 is connected to the first slider 5, there is an inclined insert block adapted to the second groove.

[0051] Furthermore, on the oil cylinder pressing plate 9 (to prevent the oil cylinder 10 from damaging the guide block 7 during operation), there is a guide hole allowing the output shaft of the oil cylinder 10 to extend. The output shaft of the oil cylinder 10 is fitted and connected to the second slider 6 through the guide hole; the inner diameter of the guide hole is 1 - 3 mm larger than the outer diameter of the output shaft.

[0052] Furthermore, on one side of the second slider 6 connected to the oil cylinder 10, there is a cylindrical third groove, and the output shaft of the oil cylinder 10 is adapted to the third groove;

[0053] The inner wall of the third groove is provided with a clamping groove, and a clamping block adapted to the clamping groove is arranged on the side surface of the output shaft of the oil cylinder 10;

[0054] Wherein, the clamping block is arranged to enhance the connection stability between the second slider 6 and the output shaft of the oil cylinder 10.

[0055] Further, the length of the second slider 6 on the side close to the oil cylinder 10 is greater than the length on the side far from the oil cylinder 10; when the output shaft of the oil cylinder 10 extends, the second slider 6 drives the first slider 5 and then drives the inner slider 4 to move towards the side far from the guide block 7; when the output shaft of the oil cylinder 10 contracts, the second slider 6 drives the first slider 5 and then drives the inner slider 4 to move towards the side close to the inner slider 4, so as to realize the demolding of the inner slider 4.

[0056] Further, the depth of the guide groove 8 is greater than the length of the second slider 6 on the side close to the oil cylinder 10.

[0057] During use, when injection molding is required, the upper mold 2 and the lower mold 3 are placed in an injection molding machine. After clamping the mold, the oil cylinder 10 is used to control the side of the second slider 6 far from the oil cylinder 10 to closely adhere to the inner wall of the guide groove 8; when the injection molding machine completes injection molding, pressure holding, and the mold is cooled, the demolding of the inner slider 4 is carried out as follows:

[0058] The oil cylinder 10 is used to control the second slider 6 to move towards the side close to the oil cylinder 10. Since the second slider 6 is obliquely and fittingly connected with the first slider 5, and the length of the second slider 6 on the side close to the oil cylinder 10 is greater than the length on the side far from the oil cylinder 10, the movement of the second slider 6 can drive the first slider 5 and then drive the inner slider 4 to move towards the side close to the guide block 7 during the movement time, so as to realize the demolding of the inner slider 4, and then subsequent processes are carried out (for example: mold opening, the injection molding machine ejects the product, and the manipulator takes out the washing machine handle bracket, etc.).

[0059] The above description of the embodiments is for the convenience of those of ordinary skill in the art to understand and use the utility model. Those skilled in the art can obviously make various modifications to these embodiments easily and apply the general principles described herein to other embodiments without creative labor. Therefore, the present utility model is not limited to the above embodiments, and the improvements and modifications made by those skilled in the art without departing from the scope of the present utility model according to the interpretation of the present utility model should be within the protection scope of the present utility model.

Claims

1. A washing machine handle bracket mold, used for producing a washing machine handle bracket (1) with an undercut (11) on the outside, comprising an upper mold (2) and a lower mold (3), wherein after the upper mold (2) and the lower mold (3) are molded together, an injection molding cavity is formed between the two, characterized in that: Also includes: An inner slide block (4) slidably disposed on the upper mold (2) and capable of sliding into the injection molding cavity to clamp the position of the handle bracket (1) of the washing machine including the undercut (11); and an auxiliary inner slider demoulding assembly for driving the inner slider (4) to move back and forth, comprising an oil cylinder (10), a second slider (6) connected to the oil cylinder (10) and driven thereby, a first slider (5) slidingly matched with the second slider (6) via an inclined surface, and a guide block (7) arranged on the side wall of the upper mold (2) and used to accommodate the second slider (6), wherein the first slider (5) is fixedly connected to the inner slider (4), and the moving direction of the oil cylinder (10) is perpendicular to the moving direction of the inner slider (4).

2. A washing machine handle bracket mold according to claim 1, characterized in that: A first groove having a T-shaped longitudinal section is provided on one side of the first sliding block (5) connected to the inner sliding block (4); The position where the inner sliding block (4) is connected to the first sliding block (5) is an insert block adapted to the first groove.

3. The washing machine handle bracket mold according to claim 1, characterized in that: A second groove having a T-shaped longitudinal section is provided on one side where the first sliding block (5) is connected to the second sliding block (6); The second groove is an oblique groove, and the length of the second groove on the side close to the oil cylinder (10) is greater than the length of the side away from the oil cylinder (10).

4. A washing machine handle bracket mold according to claim 3, characterized in that: An oblique insert matched with the second groove is arranged at the position where the second sliding block (6) is connected to the first sliding block (5).

5. The washing machine handle bracket mold according to claim 1, characterized in that: A cylinder pressure plate (9) is provided between the guide block (7) and the cylinder (10).

6. A washing machine handle bracket mold according to claim 5, characterized in that: The oil cylinder pressure plate (9) is provided with a guide hole for allowing the output shaft of the oil cylinder (10) to extend out, and the output shaft of the oil cylinder (10) is engaged and connected with the second sliding block (6) through the guide hole.

7. The washing machine handle bracket mold according to claim 1, characterized in that: A cylindrical third groove is provided on one side of the second sliding block (6) connected to the oil cylinder (10), and the output shaft of the oil cylinder (10) is adapted to the third groove.

8. The washing machine handle bracket mold according to claim 7, characterized in that: The inner wall of the third groove is provided with a clamping groove, and the side surface of the output shaft of the oil cylinder (10) is provided with a clamping block matched with the clamping groove.

9. The washing machine handle bracket mold according to claim 1, characterized in that: The length of the second sliding block (6) on the side close to the oil cylinder (10) is greater than the length on the side away from the oil cylinder (10).

10. A washing machine handle bracket mold according to claim 9, characterized in that: A guide groove (8) for accommodating the second slider (6) is provided on one side of the guide block (7) close to the inner slider (4), and the depth of the guide groove (8) is greater than the length of the second slider (6) close to the oil cylinder (10).

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