Delayed-opening exhaust mechanism and foaming mold

Abstract

The utility model belongs to the field of molds, and provides an exhaust mechanism capable of delaying opening and a foaming mold, which comprises a fixed mold plate, a movable mold plate and a movable mold plate, the sliding block assembly is arranged on the fixed mold plate and is provided with a sliding block capable of moving in the fixed mold cavity; the exhaust assembly is arranged on the fixed mold plate, and the exhaust assembly moves above the sliding block and movably abuts against the sliding block; and the driving assembly is arranged on the fixed mold plate, and a driving rod is formed on the driving assembly. Compared with the prior art, the air exhaust device has the advantages that the sliding block assembly is connected with the driving rod, and meanwhile the driving rod is movably sleeved with the limiting part and movably abuts against the air exhaust assembly, so that the driving assembly can drive the sliding block to slide down immediately when driving, and the sliding block can slide down after the driving rod slides by a certain distance and abuts against the air exhaust assembly. When the exhaust assembly is opened, the exhaust assembly begins to slide downwards, so that delayed opening of the exhaust assembly is achieved, a certain distance is reserved between the exhaust block and the sliding block, and convenience is provided for cleaning of the exhaust block.

Description

Technical Field

[0001] The utility model belongs to the field of molds, and in particular relates to a delayed-opening exhaust mechanism and a foaming mold. Background Art

[0002] Air entrapment in mold is one of the common defects in mold manufacturing, which often seriously affects the service life and production efficiency of the mold.

[0003] During the product molding process, due to the local air entrapment phenomenon (i.e. Figure 4 D and E in the figure), resulting in material shortage in the product. Therefore, it is often necessary to add an exhaust component to the existing mold. Because a slider assembly is already provided under the fixed template and the space is limited, the exhaust component and the slider assembly are driven by the same power, and the delayed opening of the exhaust component cannot be achieved. As a result, the mold cannot provide convenience for subsequent cleaning of the exhaust component on the basis of achieving the exhaust function. Utility Model Content

[0004] In view of the above-mentioned deficiencies in the prior art, the technical problem to be solved by the utility model is to provide a delayed-opening exhaust mechanism and a foaming mold.

[0005] The utility model solves the technical problem by adopting a technical solution of providing a delayed-opening exhaust mechanism, comprising: a fixed mold plate, a fixed mold cavity is formed inside the fixed mold plate;

[0006] A slider assembly is arranged on the fixed mold plate and has a slider movable in the fixed mold cavity;

[0007] An exhaust component is arranged on the fixed template, the exhaust component moves above the slider and moves tightly against the slider;

[0008] A driving assembly is arranged on the fixed template, a driving rod is formed on the driving assembly, and the slider assembly is connected to the driving rod; a limiting portion is connected to the exhaust assembly, and the driving rod is movably sleeved on the limiting portion and movably pressed against the exhaust assembly;

[0009] The slider can be moved away from the fixed plate when the driving component is driven, and when the driving rod is pressed against the exhaust component, the exhaust component is moved away from the fixed plate to achieve delayed opening.

[0010] In the above-mentioned delayed opening exhaust mechanism, the exhaust assembly includes a thick connecting rod and an exhaust block, the exhaust block moves in the fixed template and moves against the slider; the bottom end of the thick connecting rod is connected to the exhaust block, and the top end is connected to the limiting portion.

[0011] In the above-mentioned delayed opening exhaust mechanism, the slider assembly includes:

[0012] A fixing seat, which is arranged on the fixed template and has an installation cavity formed inside;

[0013] A guide sleeve, disposed in the fixed template and extending into the installation cavity;

[0014] The moving rod moves along the vertical direction and penetrates the fixing seat and the guide sleeve. The top end of the moving rod is connected to the driving rod, and the bottom end is connected to the sliding block.

[0015] In the above-mentioned delayed opening exhaust mechanism, the limiting part includes a thin connecting rod and a limiting nut, the thin connecting rod is connected inside the thick connecting rod, and the driving rod is movably mounted on the thin connecting rod; the limiting nut is connected to the top end of the thin connecting rod to prevent the driving rod from detaching from the thin connecting rod.

[0016] In the above-mentioned delayed-opening exhaust mechanism, a sliding sleeve is provided in the fixed template, and the bottom end of the thick connecting rod passes through the sliding sleeve and is connected to the exhaust block.

[0017] In the above-mentioned delayed-opening exhaust mechanism, the driving assembly includes a driving member disposed on the fixed template, a driving shaft is disposed on the driving member, and the driving shaft is connected to the driving rod via a locking screw.

[0018] The utility model adopts a technical solution to solve the technical problem, and further provides a foaming mold, comprising the above-mentioned delayed-opening exhaust mechanism.

[0019] Compared with the prior art, the advantage of the utility model lies in that the driving rod is connected with the slider assembly, and the driving rod is movably sleeved with a limiting portion and movably pressed against the exhaust assembly, so that when the driving assembly is driven, the slider can be immediately driven to slide down, and after the driving rod slides a certain distance and presses against the exhaust assembly, the exhaust assembly can start to slide down, thereby realizing the delayed opening of the exhaust assembly, so that a certain distance is maintained between the exhaust block and the slider, thereby providing convenience for cleaning the exhaust block. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 is a stereogram of the present application;

[0021] Figure 2 yes Figure 1 Sectional view at AA in the middle;

[0022] Figure 3 yes Figure 1 Sectional view at the middle BB;

[0023] Figure 4 yes Figure 3A partial enlarged view of point C in the middle.

[0024] In the figure, 1, fixed mold plate; 10, fixed mold cavity; 11, sliding sleeve;

[0025] 2. Slider assembly; 20. Slider; 21. Fixed seat; 210. Installation cavity; 22. Guide sleeve; 23. Moving rod;

[0026] 3. Exhaust assembly; 30. Limiting part; 300. Thin connecting rod; 301. Limiting nut; 31. Thick connecting rod; 32. Exhaust block;

[0027] 4. driving assembly; 40. driving rod; 41. driving member; 410. driving shaft. DETAILED DESCRIPTION

[0028] The following are specific embodiments of the present invention and the accompanying drawings to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.

[0029] like Figure 1 As shown, in this solution, a delayed-opening exhaust mechanism used in a foaming mold is mainly described in detail, but the delayed-opening exhaust mechanism is not limited to being used in a foaming mold, and can also be applied to other molds.

[0030] like Figures 1 to 4 As shown, a delayed-opening exhaust mechanism comprises: a fixed mold plate 1, in which a fixed mold cavity 10 is formed; a slider assembly 2, which is arranged on the fixed mold plate 1 and has a slider 20 that can move in the fixed mold cavity 10; an exhaust assembly 3, which is arranged on the fixed mold plate 1, and the exhaust assembly 3 is movable above the slider 20 and is movably pressed against the slider 20; a driving assembly 4, which is arranged on the fixed mold plate 1, and a driving rod 40 is formed on the driving assembly 4, and the slider assembly 2 is connected to the driving rod 40; a limiting portion 30 is connected to the exhaust assembly 3, and the driving rod 40 is movably sleeved on the limiting portion 30 and is movably pressed against the exhaust assembly 3; the slider 20 can be moved away from the fixed mold plate 1 when the driving assembly 4 is driven, and when the driving rod 40 is pressed against the exhaust assembly 3, the exhaust assembly 3 is moved away from the fixed mold plate 1 to achieve delayed opening.

[0031] It should be noted that during the product molding process, the original Figure 4 The gas at D and E can overflow through the gap between the exhaust component 3 and the fixed mold plate 1 to achieve the exhaust function, ensuring that the quality of the molded product meets the customer's use requirements. Figure 2Move vertically downward. Since the top of the sliding component is connected to the driving rod 40, the driving rod 40 can push the slider 20 to start sliding down (i.e., away from the fixed template 1) at the first time when it moves. In this process, the driving rod 40 moves along the length direction of the limiting portion 30, which can not only play a certain guiding effect on the slider 20 when it moves in the vertical direction, but also ensure that the limiting portion 30 and the exhaust component 3 remain stationary during the first sliding process of the slider 20, until the driving rod 40 slides to the end of the limiting portion 30 and moves tightly against the exhaust component 3 (i.e., the driving rod 40 contacts the exhaust component 3). At this time, the exhaust component 3 can be pushed by the driving rod 40 and move along with the slider 20 Figure 2 Slide downward to realize the delayed opening function of the exhaust component 3, so that a certain distance is maintained between the exhaust component 3 and the slider 20. While realizing the exhaust function, this structure also provides convenience for subsequent workers to clean the exhaust component 3.

[0032] The exhaust assembly 3 includes a thick connecting rod 31 and an exhaust block 32 . The exhaust block 32 moves in the fixed mold plate 1 and moves against the slider 20 . The bottom end of the thick connecting rod 31 is connected to the exhaust block 32 , and the top end is connected to the limit part 30 .

[0033] like Figure 2 and Figure 3 As shown, the bottom end of the coarse connecting rod 31 extends into the exhaust block 32 and is threadedly connected thereto, while the top end of the coarse connecting rod 31 is connected to the limiting portion 30, so that when the driving rod 40 pushes the slider 20 to slide down, the driving rod 40 only slides on the limiting portion 30 and does not contact the coarse connecting rod 31. Only when the driving rod 40 and the top end of the coarse connecting rod 31 are movably pressed against each other can the exhaust block 32 be driven to move, that is, the limiting portion 30 is used to realize the interval-type sliding of the exhaust block 32 and the slider 20, so as to retain the gap between the exhaust block 32 and the slider 20 for cleaning of residual materials.

[0034] The limiting part 30 includes a thin connecting rod 300 and a limiting nut 301. The thin connecting rod 300 is connected inside the thick connecting rod 31, and the driving rod 40 is movably mounted on the thin connecting rod 300; the limiting nut 301 is connected to the top end of the thin connecting rod 300 to prevent the driving rod 40 from detaching from the thin connecting rod 300.

[0035] Further, if Figure 2As shown, the limiting portion 30 is composed of a thin connecting rod 300 and a limiting nut 301, wherein the diameter of the thin connecting rod 300 is smaller than the diameter of the thick connecting rod 31, and the driving rod 40 is movably mounted on the thin connecting rod 300, so that when the driving rod 40 drives the slider assembly 2 to move for the first time, the driving rod 40 approaches the thick connecting rod 31 along the axial direction of the thin connecting rod 300 (at this time, neither the thick connecting rod 31 nor the thin connecting rod 300 is displaced). Because of this, there is a time difference when the slider 20 and the exhaust block 32 move, that is, when the driving rod 40 is movably pressed against the thick connecting rod 31, the delayed opening of the exhaust block 32 is completed.

[0036] The slider assembly 2 includes: a fixed seat 21, which is arranged on the fixed template 1 and has an installation cavity 210 formed therein; a guide sleeve 22, which is arranged in the fixed template 1 and extends into the installation cavity 210; a moving rod 23, which moves along the vertical direction and penetrates the fixed seat 21 and the guide sleeve 22, and the top end of the moving rod 23 is connected to the driving rod 40, and the bottom end is connected to the slider 20.

[0037] Similarly, the fixing seat 21 and the fixed mold plate 1 in the present embodiment can be connected together by screws, and the guide sleeve 22 located in the installation cavity 210 extends into the fixed mold plate 1, which not only plays a limiting effect, but also ensures that when the moving rod 23 is driven by the driving rod 40 to slide down, it can always move along the axial direction of the guide sleeve 22, thereby reducing wear and ensuring the stability of the slider 20 and the fixed mold cavity 10 when molding products.

[0038] Preferably, a sliding sleeve 11 is provided in the fixed mold plate 1 in the present solution, and the bottom end of the coarse connecting rod 31 passes through the sliding sleeve 11 and is connected to the exhaust block 32. When the mold is opened, the slider 20 starts to slide down in advance driven by the driving rod 40. Due to the friction between the coarse connecting rod 31 and the sliding sleeve 11, and the movable sleeve between the driving rod 40 and the thin connecting rod 300, it is effectively ensured that the driving rod 40 does not apply the driving force of the exhaust block 32 at the first time when pushing, and then when the exhaust block 32 is temporarily immobilized, the exhaust block 32 is delayed in opening when the subsequent driving rod 40 moves to press against the coarse connecting rod 31.

[0039] The driving assembly 4 includes a driving member 41 disposed on the fixed template 1 . A driving shaft 410 is disposed on the driving member 41 . The driving shaft 410 is connected to the driving rod 40 via a locking screw.

[0040] The driving source in this solution mainly relies on the driving member 41 to drive the driving shaft 410 along Figure 2 When moving back and forth in the vertical direction, the driving rod 40 is driven to push the slider 20 and the exhaust block 32 to open successively. The structure is simple and the operation is convenient and quick. It should be noted that the driving member 41 in this solution can be a hydraulic drive, a cylinder drive or other driving devices.

[0041] It should be noted that all directional indications in the embodiments of the present invention (such as up, down, left, right, front, back...) are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0042] In addition, in the present invention, the descriptions of "first", "second", "one", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" or "second" may explicitly or implicitly include at least one of the features. In the description of the present invention, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0043] In the present invention, unless otherwise clearly specified and limited, the terms "connection", "fixation", etc. should be understood in a broad sense. For example, "fixation" 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 an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0044] In addition, the technical solutions between the various embodiments of the present invention can be combined with each other, but it must be based on the fact that ordinary technicians in the field can implement it. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

Claims

1. A delayed opening exhaust mechanism, characterized in that: include: A fixed mold plate, a fixed mold cavity is formed inside the fixed mold plate; A slider assembly is arranged on the fixed mold plate and has a slider movable in the fixed mold cavity; An exhaust component is arranged on the fixed template, the exhaust component moves above the slider and moves tightly against the slider; A driving assembly is arranged on the fixed template, a driving rod is formed on the driving assembly, and the slider assembly is connected to the driving rod; a limiting portion is connected to the exhaust assembly, and the driving rod is movably sleeved on the limiting portion and movably pressed against the exhaust assembly; The slider can be moved away from the fixed plate when the driving component is driven, and when the driving rod is pressed against the exhaust component, the exhaust component is moved away from the fixed plate to achieve delayed opening.

2. A delayed opening exhaust mechanism according to claim 1, characterized in that: The exhaust assembly comprises a thick connecting rod and an exhaust block. The exhaust block moves in the fixed template and moves against the slider. The bottom end of the thick connecting rod is connected to the exhaust block, and the top end is connected to the limiting part.

3. A delayed opening exhaust mechanism according to claim 1, characterized in that: The slider assembly comprises: A fixing seat, arranged on the fixed template, and having an installation cavity formed therein; A guide sleeve, disposed in the fixed template and extending into the installation cavity; The moving rod moves along the vertical direction and penetrates the fixing seat and the guide sleeve. The top end of the moving rod is connected to the driving rod, and the bottom end is connected to the sliding block.

4. A delayed-opening exhaust mechanism according to claim 2, characterized in that: The limiting part includes a thin connecting rod and a limiting nut. The thin connecting rod is connected inside the thick connecting rod, and the driving rod is movably sleeved on the thin connecting rod. The limiting nut is connected to the top end of the thin connecting rod to prevent the driving rod from being separated from the thin connecting rod.

5. A delayed opening exhaust mechanism according to claim 2, characterized in that: A sliding sleeve is arranged in the fixed template, and the bottom end of the thick connecting rod passes through the sliding sleeve and is connected to the exhaust block.

6. A delayed-opening exhaust mechanism according to claim 1, characterized in that: The driving assembly comprises a driving member, which is arranged on the fixed template. A driving shaft is arranged on the driving member, and the driving shaft is connected to the driving rod through a locking screw.

7. A foaming mold, characterized in that: A delayed-opening exhaust mechanism comprising any one of claims 1-6.

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