Guiding demolding ejection mechanism of combined type plastic table panel mold

Abstract

The utility model belongs to the technical field of molds, and particularly relates to a guide demolding ejection mechanism of a combined plastic table panel mold. The utility model discloses a plastic table top plate molding template, which comprises a plastic table top plate molding template, and an insert panel fixing cavity is arranged in the plastic table top plate molding template. In the injection molding process, the plastic table top plate forming insert block is matched with the plastic table top plate forming template in a clamped mode, the plastic table top plate forming insert block is used for assisting in forming a plastic part main body, molten materials are injected through the injection molding part, the guide demolding ejection assembly is embedded with the plastic table top plate forming insert block, a plastic part is formed in a matched mode, and mold opening is conducted after injection molding is completed; the guide demolding ejection assembly is moved towards one end of the formed plastic part, multi-directional ejection demolding is conducted on the formed plastic part through the guide demolding ejection assembly, and during ejection, the demolding angle is limited through a guide structure between the guide demolding ejection assembly and the plastic table panel forming insert block, so that it is ensured that position deviation cannot occur during ejection; and the demolding accuracy is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of molds and relates to a combined plastic desktop plate mold guide demoulding and ejection mechanism. Background Art

[0002] Moulds are important process equipment for modern industrial production, meeting the needs of industrial mass production. Among them, plastic desktop panels are also injection-molded by injection moulds. During the injection moulding process, existing plastic desktop panel moulds need to be ejected and demolded by means of an ejection structure. Due to the large area of ​​the desktop panel, most of them adopt an inclined ejection structure for demolding. During ejection, the ejection structure lacks a limiting guide structure, and the angle is easily offset during demolding, affecting the accuracy of demolding. Therefore, it is urgent to design a combined plastic desktop panel mould guide demolding ejection mechanism that can overcome the above defects.

[0003] In order to overcome the shortcomings of the existing technology, people have proposed various solutions through continuous exploration. For example, a Chinese patent discloses an injection molding mold for a combined plastic table top panel [application number: 201920273136.8], which includes a fixed mold plate, a movable mold plate, a mold core and a mold core fixing plate. The movable mold plate is opened and closed relative to the fixed mold plate. The fixed mold plate is provided with a mold core fixing plate. The mold core fixing plate is detachably provided with a plurality of mold cores. The plurality of mold cores are sequentially assembled in a horizontal plane to form a convex mold structure that matches the bottom surface contour of the desktop panel. The bottom surface of the fixed mold plate is concavely provided with a concave mold structure that matches the top surface contour of the desktop panel. The concave mold structure and the convex mold structure form an injection molding cavity. The convex mold structure is a split structure, which is formed by the mutual assembly of multiple mold cores. Utility Model Content

[0004] The purpose of the utility model is to solve the above problems and provide a combined plastic desktop panel mold guide demoulding and ejection mechanism.

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

[0006] A combined plastic desktop panel mold guided demolding and ejection mechanism includes a plastic desktop panel forming template, the plastic desktop panel forming template has an insert panel fixing cavity, the insert panel fixing cavity is provided with two plastic desktop panel forming inserts symmetrical along the center line of the insert panel fixing cavity, an injection molding part is provided between the two plastic desktop panel forming inserts, an ejection fixing plate is provided below the plastic desktop panel forming template, the ejection fixing plate is provided with a guided demolding and ejection component that sequentially passes through the plastic desktop panel forming template and the plastic desktop panel forming insert, and the guided demolding and ejection component is staggered with the injection molding part.

[0007] In the above-mentioned combined plastic desktop panel mold guided demolding and ejection mechanism, the guided demolding and ejection assembly includes an inclined ejector rod body arranged on the ejection fixed plate, the top of the inclined ejector rod body has an embedded ejector block integrally formed with the inclined ejector rod body, and an anti-deflection abutment member is provided under the embedded ejector block.

[0008] In the above-mentioned combined plastic desktop panel mold guide demoulding and ejection mechanism, the inclined ejector rod body is arranged obliquely, and the cross-sectional area of ​​the embedded ejector block is larger than the cross-sectional area of ​​the inclined ejector rod body.

[0009] In the above-mentioned combined plastic desktop panel mold guide demoulding and ejection mechanism, the plastic desktop panel forming insert has an ejector block placement cavity, and the embedded ejector block is located in the ejector block placement cavity.

[0010] In the above-mentioned combined plastic desktop panel mold guide demoulding ejection mechanism, the anti-deflection abutment member includes a limiting slide bar provided below the embedded ejector block, and the limiting slide bar is in sliding engagement with the plastic desktop panel molding insert.

[0011] In the above-mentioned combined plastic desktop panel mold guide demoulding and ejection mechanism, the limiting slide rod and the inclined ejector rod body are fixed by an insertion rod, and the center line of the insertion rod is perpendicular to the center line of the limiting slide rod.

[0012] In the above-mentioned combined plastic desktop panel mold guide demoulding and ejection mechanism, a supporting step is provided in the ejector block placement cavity, and the bottom of the limiting slide rod is in abutment with the supporting step.

[0013] In the above-mentioned combined plastic desktop panel mold guide demoulding ejection mechanism, a fixed slide is provided in the ejection fixed plate, a slide groove is provided in the fixed slide, and a sliding part is provided at the bottom of the inclined ejector rod body, which extends into the slide groove and slides with the slide groove.

[0014] In the above-mentioned combined plastic desktop panel mold guide demoulding and ejection mechanism, the injection molding part includes an injection molding hole groove arranged between two plastic desktop panel molding inserts.

[0015] In the above-mentioned combined plastic desktop panel mold guide demoulding and ejection mechanism, the plastic desktop panel forming insert is provided with a plurality of table edge strip forming grooves.

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

[0017] 1. During the injection molding process of the present invention, the plastic desktop panel molding insert is snap-fitted with the plastic desktop panel molding template to assist in molding the main body of the plastic part. The molten material is injected through the injection molding part, and the guided demoulding ejection assembly is engaged with the plastic desktop panel molding insert to cooperate in molding the plastic part. After the injection molding is completed, the mold is opened, and the guided demoulding ejection assembly is moved toward one end of the molded plastic part. The molded plastic part is ejected and demolded in multiple directions by the guided demoulding ejection assembly. During ejection, the demoulding angle is limited by the guide structure between the guided demoulding ejection assembly and the plastic desktop panel molding insert to ensure that positional offset does not occur during ejection, thereby improving the accuracy of demoulding.

[0018] 2. During injection molding, the bottom of the limiting slide bar of the utility model abuts against the supporting step to prevent the embedded top block from sinking due to the impact of the material.

[0019] Other advantages, objectives and features of the present invention will be reflected 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 structural diagram of the present utility model.

[0021] Figure 2 It is a partial structural diagram of the utility model.

[0022] Figure 3 It is a partial structural diagram of the utility model in another direction.

[0023] Figure 4 It is a partial structural diagram of the utility model in another direction.

[0024] In the figure: plastic desktop panel forming template 1, panel fixing cavity 2, plastic desktop panel forming insert 3, injection molding part 4, ejection fixing plate 5, guide demoulding ejection assembly 6, inclined ejector rod body 7, embedded ejector block 8, anti-deflection abutment member 9, ejector block placement cavity 10, limiting slide 11, insertion rod 12, supporting step 13, fixed slide 14, slide groove 15, sliding part 16, injection molding hole groove 17, table edge strip molding groove 18. DETAILED DESCRIPTION

[0025] The present invention will be further described below with reference to the accompanying drawings.

[0026] like Figure 1-4As shown, a combined plastic desktop panel mold guided demolding and ejection mechanism includes a plastic desktop panel forming template 1, the plastic desktop panel forming template 1 has a panel fixing cavity 2, the panel fixing cavity 2 is provided with two plastic desktop panel forming inserts 3 symmetrical along the center line of the panel fixing cavity 2, and an injection molding part 4 is provided between the two plastic desktop panel forming inserts 3, an ejection fixing plate 5 is provided below the plastic desktop panel forming template 1, and a guided demolding ejection component 6 is provided on the ejection fixing plate 5, which passes through the plastic desktop panel forming template 1 and the plastic desktop panel forming inserts 3 in sequence, and the guided demolding ejection component 6 is staggered with the injection molding part 4.

[0027] In this embodiment, during the injection molding process, the plastic desktop panel molding insert 3 is snap-fitted with the plastic desktop panel molding template 1. The plastic desktop panel molding insert 3 is used to assist in molding the main body of the plastic part. The molten material is injected through the injection molding part 4. The guide demolding ejection component 6 is engaged with the plastic desktop panel molding insert 3 to cooperate in molding the plastic part. After the injection molding is completed, the mold is opened and the guide demolding ejection component 6 is moved toward one end of the molded plastic part. The molded plastic part is ejected and demolded in multiple directions by the guide demolding ejection component 6. During ejection, the demolding angle is limited by the guide structure between the guide demolding ejection component 6 and the plastic desktop panel molding insert 3 to ensure that no position offset occurs during ejection, thereby improving the accuracy of demolding.

[0028] Combine Figure 1-4 As shown, the guided demoulding ejection assembly 6 includes an inclined ejector rod body 7 arranged on the ejection fixed plate 5, and the top of the inclined ejector rod body 7 has an embedded ejector block 8 integrally formed with the inclined ejector rod body 7, and an anti-deflection abutment member 9 is provided below the embedded ejector block 8.

[0029] Specifically, during the injection molding process, the embedded ejector block 8 is engaged with the plastic desktop panel forming insert 3 to cooperate in molding the plastic part. After the injection molding is completed, the mold is opened and the inclined ejector rod 7 is moved toward one end of the molded plastic part. The molded plastic part is ejected and demolded in multiple directions through the embedded ejector block 8. During ejection, the ejection angle is limited between the embedded ejector block 8 and the plastic desktop panel forming insert 3 by the anti-deflection abutment 9 to ensure that no position deviation occurs during ejection, thereby improving the accuracy of demolding.

[0030] The inclined ejector rod body 7 is arranged in an inclined manner, and the cross-sectional area of ​​the embedded ejector block 8 is larger than the cross-sectional area of ​​the inclined ejector rod body 7 .

[0031] In this embodiment, the inclined ejector rod body 7 is set at an angle to achieve inclined ejection. The cross-sectional area of ​​the embedded ejector block 8 is larger than the cross-sectional area of ​​the inclined ejector rod body 7. On the one hand, the ejection area is large, and on the other hand, no jamming will occur during ejection.

[0032] Combine Figure 3 、 Figure 4As shown, the plastic desktop panel forming insert 3 has a top block placement cavity 10 , and the embedded top block 8 is located in the top block placement cavity 10 .

[0033] In this embodiment, the top block placement cavity 10 is used to place the embedded top block 8 to ensure that the embedded top block 8 assists in molding the plastic part during injection molding.

[0034] The anti-deflection abutment member 9 includes a limiting slide bar 11 provided below the embedded top block 8 , and the limiting slide bar 11 is in sliding engagement with the plastic desktop panel forming insert 3 .

[0035] In this embodiment, during the ejection and demoulding process, the limiting slide bar 11 slides with the plastic desktop panel forming insert 3 to avoid angular deviation of the embedded ejector block 8 during movement, thereby improving the ejection accuracy of the embedded ejector block 8.

[0036] Combine Figure 3 As shown, the limiting slide bar 11 and the inclined ejector rod body 7 are fixed via an inserting rod 12 , and the center line of the inserting rod 12 is perpendicular to the center line of the limiting slide bar 11 .

[0037] In this embodiment, the limiting sliding rod 11 and the inclined ejector rod body 7 are fixed by the inserting rod 12, and the fixing effect is good.

[0038] A supporting step 13 is provided in the top block placement cavity 10 , and the bottom of the limiting slide rod 11 abuts against the supporting step 13 .

[0039] In this embodiment, during injection molding, the bottom of the limiting slide bar 11 abuts against the supporting step 13 to prevent the embedded top block 8 from sinking due to the impact of the material.

[0040] Combine Figure 1-3 As shown, a fixed slide 14 is provided in the ejection fixed plate 5 , a slide groove 15 is provided in the fixed slide 14 , and a sliding portion 16 is provided at the bottom of the inclined ejector rod 7 , which extends into the slide groove 15 and slidably cooperates with the slide groove 15 .

[0041] In this embodiment, during the ejection and demoulding process, the sliding portion 16 at the bottom of the lift rod 7 slides in cooperation with the slide groove 15 to achieve the ejection and demoulding action of the lift rod 7 .

[0042] Combine Figure 1-2 As shown, the injection molding portion 4 includes an injection molding hole 17 arranged between two plastic desktop panel molding inserts 3.

[0043] In this embodiment, during injection molding, the molten material is injected through the injection hole 17 .

[0044] Combine Figure 1-2 As shown, the plastic table top forming insert 3 has a plurality of table edge strip forming grooves 18 therein.

[0045] In this embodiment, during injection molding, the table edge strip molding groove 18 is used to simultaneously mold the table edge strip structure of the plastic part, without the need for secondary processing.

[0046] The working principle of this utility model is:

[0047] During the injection molding process, the plastic desktop panel forming insert 3 is snap-fitted with the plastic desktop panel forming template 1. The plastic desktop panel forming insert 3 is used to assist in molding the main body of the plastic part. The molten material is injected through the injection molding hole 17. The embedded ejector block 8 is engaged with the plastic desktop panel forming insert 3 to cooperate in molding the plastic part. After the injection molding is completed, the mold is opened and the inclined ejector rod 7 is moved toward one end of the molded plastic part. The molded plastic part is ejected and demolded in multiple directions through the embedded ejector block 8. During ejection, the anti-deflection abutment member 9 is used between the embedded ejector block 8 and the plastic desktop panel forming insert 3 to limit the demolding angle, ensuring that position deviation does not occur during ejection, thereby improving the accuracy of demolding.

[0048] The inclined ejector rod 7 is tilted to realize the inclined ejection. The cross-sectional area of ​​the embedded ejector block 8 is larger than that of the inclined ejector rod 7. On the one hand, the ejection area is large, and on the other hand, no jamming occurs during ejection.

[0049] The top block placement cavity 10 is used to place the embedded top block 8 to ensure that the embedded top block 8 assists in molding the plastic part during injection molding.

[0050] During the ejection and demoulding process, the sliding cooperation between the limiting slide bar 11 and the plastic desktop panel forming insert 3 can prevent the embedded ejector block 8 from angular deviation during the movement process, thereby improving the ejection accuracy of the embedded ejector block 8.

[0051] The limiting slide bar 11 and the inclined top rod body 7 are fixed by the inserting rod 12, and the fixing effect is good.

[0052] During injection molding, the bottom of the limiting slide bar 11 abuts against the supporting step 13 to prevent the embedded top block 8 from sinking due to the impact of the material.

[0053] During the demoulding process, the sliding portion 16 at the bottom of the lift rod 7 slides with the slide groove 15 to achieve the demoulding action of the lift rod 7.

[0054] During injection molding, the table edge strip molding groove 18 is used to simultaneously mold the table edge strip structure of the plastic part, without the need for secondary processing.

[0055] 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 with similar methods, without departing from the spirit of the present invention.

[0056] Although this document frequently uses terms such as the plastic desktop panel forming template 1, panel fixing cavity 2, plastic desktop panel forming insert 3, injection molding portion 4, ejection fixing plate 5, guide demoulding ejection assembly 6, inclined ejector rod 7, embedded ejector block 8, anti-deflection abutment 9, ejector block placement cavity 10, limiting slide 11, insert rod 12, supporting step 13, fixed slide 14, slide groove 15, sliding portion 16, injection molding hole groove 17, and table edge strip forming groove 18, the use of other terms is not excluded. These terms are used only to more conveniently describe and explain the essence of the present invention. Interpreting them as any additional limitations is contrary to the spirit of the present invention.

Claims

1. A modular plastic desktop panel mold guide demoulding and ejection mechanism, comprising a plastic desktop panel forming template (1), characterized in that: The plastic desktop panel forming template (1) has a panel fixing cavity (2), and the panel fixing cavity (2) is provided with two plastic desktop panel forming inserts (3) symmetrical along the center line of the panel fixing cavity (2), and an injection molding portion (4) is provided between the two plastic desktop panel forming inserts (3). An ejection fixing plate (5) is provided below the plastic desktop panel forming template (1), and a guide demoulding ejection component (6) is provided on the ejection fixing plate (5) that passes through the plastic desktop panel forming template (1) and the plastic desktop panel forming inserts (3) in sequence, and the guide demoulding ejection component (6) and the injection molding portion (4) are staggered.

2. The mold guide demoulding and ejection mechanism for a combined plastic desktop panel according to claim 1, characterized in that: The guide demoulding ejection assembly (6) comprises an inclined ejector rod (7) arranged on an ejection fixed plate (5); the top of the inclined ejector rod (7) is provided with an embedded ejector block (8) integrally formed with the inclined ejector rod (7); and an anti-deflection abutment member (9) is provided below the embedded ejector block (8).

3. The mold guide demoulding and ejection mechanism for a combined plastic desktop panel according to claim 2, characterized in that: The inclined ejector rod body (7) is arranged in an inclined manner, and the cross-sectional area of ​​the embedded ejector block (8) is larger than the cross-sectional area of ​​the inclined ejector rod body (7).

4. The mold guide demoulding and ejection mechanism for a combined plastic desktop panel according to claim 3, characterized in that: The plastic desktop panel forming insert (3) has a top block placement cavity (10), and the embedded top block (8) is located in the top block placement cavity (10).

5. The mold-guided demoulding and ejection mechanism for a combined plastic desktop panel according to claim 4, characterized in that: The anti-deflection abutment member (9) comprises a limiting slide bar (11) arranged below the embedded top block (8), and the limiting slide bar (11) is in sliding cooperation with the plastic desktop panel forming insert (3).

6. The mold-guided demoulding and ejection mechanism for a combined plastic desktop panel according to claim 5, characterized in that: The limiting slide bar (11) and the inclined top rod body (7) are fixed via an inserting rod (12), and the center line of the inserting rod (12) and the center line of the limiting slide bar (11) are perpendicular to each other.

7. The mold-guided demoulding and ejection mechanism for a combined plastic desktop panel according to claim 6, characterized in that: A supporting step (13) is provided in the top block placement cavity (10), and the bottom of the limiting slide rod (11) is in abutment with the supporting step (13).

8. The mold-guided demoulding and ejection mechanism for a combined plastic desktop panel according to claim 7, characterized in that: A fixed slide (14) is provided in the ejection fixed plate (5), a slide groove (15) is provided in the fixed slide (14), and a sliding portion (16) is provided at the bottom of the inclined ejector rod (7) and extends into the slide groove (15) and is slidably matched with the slide groove (15).

9. The mold-guided demoulding and ejection mechanism for a combined plastic desktop panel according to claim 8, characterized in that: The injection molding part (4) comprises an injection molding hole groove (17) arranged between two plastic desktop panel molding inserts (3).

10. The mold guide demoulding and ejection mechanism for a combined plastic desktop panel according to claim 9, characterized in that: The plastic tabletop forming insert (3) is provided with a plurality of table edge strip forming grooves (18).

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