Boundless mold with skeleton bushing

Abstract

The present invention discloses a borderless mold with a skeleton bushing, comprising an upper template, a lower template and an exhaust plugging piece, wherein: the upper template is arranged above the lower template, an upper mounting through hole is opened on the upper template, and a lower mounting through hole is opened on the lower template, the lower mounting through hole and the upper mounting through hole form a cavity, an inner and outer skeletons and a mold core are placed in the cavity, and then casting is carried out; an exhaust channel is opened on the upper template and / or the lower template, the exhaust channel is connected with the molding cavity, and the exhaust plugging piece can be detachably installed in the exhaust channel, wherein the exhaust channel can be arranged on the upper template, and can also be opened on the lower template, and of course can also be arranged between the upper template and the lower template, and the exhaust plugging piece is removed after the rubber injection is completed so that part of the rubber is in the exhaust cavity, and the rubber column formed in the exhaust channel with a regular shape and a small connection area with the rubber component is easier to clean than the circumferential flash, thereby increasing the work efficiency.

Description

Technical Field

[0001] The invention relates to the technical field of rubber bushing related equipment, in particular to a borderless mold with a bushing with a skeleton. Background Art

[0002] The rubber bushing product has rubber between the inner and outer frames, and the frame material is usually 20 steel. The inner and outer frames are often fixed in the cavity, and rubber is poured between the inner and outer frames. Since the air in the cavity needs to be discharged, after the rubber injection is completed, the vulcanization equipment needs to open the mold 1-2mm to exhaust the air through the opened gap, forming a thicker flash, which is not easy to remove. Summary of the invention

[0003] In order to solve the technical problems existing in the background technology, the present invention proposes a borderless mold with a skeleton bushing.

[0004] The edgeless mold with a skeleton bushing provided by the present invention comprises an upper mold plate, a lower mold plate and an exhaust plugging member, wherein:

[0005] The upper template is arranged above the lower template, the upper template is provided with an upper installation through hole, the lower template is provided with a lower installation through hole, the lower installation through hole and the upper installation through hole form a cavity, the inner and outer skeletons and the mold core are placed in the cavity, and then casting is performed;

[0006] An exhaust channel is opened on the upper template and / or the lower template, and the exhaust channel is connected to the molding cavity. The exhaust plugging piece can be removably installed in the exhaust channel, wherein the exhaust channel can be set on the upper template, and can also be opened on the lower template, and of course can also be set between the upper template and the lower template. After the rubber injection is completed, the exhaust plugging piece is removed to leave part of the rubber in the exhaust cavity. The rubber column formed in the exhaust channel with a regular shape and a small connection area with the rubber component is easier to clean than the circumferential flash, thereby increasing work efficiency.

[0007] In order to facilitate the injection of rubber, the upper mounting through hole and the lower press-shaped through hole are generally arranged vertically. In order to facilitate exhaust, as a further optimized solution of the present invention, the exhaust channel is arranged horizontally.

[0008] In order to increase the accuracy, as a further optimized solution of the present invention, when the exhaust blocking member is located at the innermost part of the exhaust passage, the inner surface of the exhaust blocking member constitutes the inner wall of the cavity.

[0009] In order to facilitate the storage of rubber, as a further optimized solution of the present invention, the exhaust channel includes an exhaust channel and a receiving sink, the receiving sink is communicated with the exhaust channel, and the exhaust plugging member is horizontally slidably installed in the exhaust channel.

[0010] As a further optimized solution of the present invention, the accommodating sink is located below the exhaust passage, which further facilitates the rubber to enter the accommodating sink.

[0011] In order to facilitate the rubber to flow to the containing sink, as a further optimized solution of the present invention, the lower surface of the exhaust channel is an inclined surface which gradually slopes upward from away from the cavity to closer to the cavity.

[0012] Preferably, in some embodiments, an exhaust groove is provided at the bottom of the upper template, and the exhaust groove and the upper surface of the lower template form an exhaust channel.

[0013] As a further optimized solution of the present invention, the upper template and the lower template are respectively provided with an upper extension ear and a lower extension ear, and a fixed space is formed between the upper extension ear and the lower extension ear. The upper template and the lower template are also provided with a resistance piece, which is fixed on the upper extension ear and the lower extension ear and is used to block the exhaust blocking piece in the exhaust channel. The upper extension ear and the lower extension ear are provided with a fixing through hole, and the resistance piece is also provided with a resistance through hole. The fixing through hole is coaxial with the resistance through hole, and the resistance piece is fixed to the upper template and the lower template by inserting a positioning pin into the fixing through hole, and the upper template and the lower template are fixed at the same time.

[0014] In order to facilitate the rapid removal of the exhaust blocking piece, as a further optimized solution of the present invention, the exhaust blocking piece includes a blocking block, a sliding column and an elastic member, the elastic member is fixed between the blocking block and the sliding column, and the blocking block is closer to the cavity than the sliding column.

[0015] As a further optimized solution of the present invention, it also includes a limiting member, which is fixed to the end of the sliding column away from the blocking block, and is located outside the exhaust channel to limit the exhaust blocking member.

[0016] In the present invention, the proposed edgeless mold with a skeleton bushing can discharge gas into the exhaust channel by removing the exhaust plugging piece. The structure is simple and exhaust can be achieved without forming flash on the parting surface.

[0017] Additional aspects and advantages of the present invention will be given in part in the following description and in part will be obvious from the following description, or will be learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the structure of the present invention;

[0019] Figure 2 It is a partial enlarged view of area A of the present invention. DETAILED DESCRIPTION

[0020] Embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar symbols throughout represent the same or similar elements or elements with the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0021] It should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0022] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "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.

[0023] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral one; it can be a mechanical connection, an electrical connection, or communication with each other; 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.

[0024] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0025] like Figure 1-2 The illustrated edgeless mold with a skeleton bushing comprises an upper mold plate 1, a lower mold plate 2, a bottom plate 3 and an exhaust plugging member 5, wherein:

[0026] The upper template 1, the lower template 2 and the bottom plate 3 are arranged in sequence from top to bottom. The upper template 1 is provided with an upper installation through hole 10, and the lower template 2 is provided with a lower installation through hole 20. The lower installation through hole 20 and the upper installation through hole 10 form a cavity. After placing auxiliary components such as inner and outer skeletons and mold cores in the cavity, the bottom plate 3 is cast to block the lower installation through hole 20.

[0027] The upper template 1 and the lower template 2 are respectively provided with an upper extension ear 100 and a lower extension ear 200, a fixed space is formed between the upper extension ear 100 and the lower extension ear 200, and vertical fixing through holes are opened on the upper extension ear 100 and the lower extension ear 200, and positioning pins or bolts are inserted into the fixing through holes to fix the upper template 1 and the lower template 2;

[0028] An exhaust groove 11 is provided at the bottom of the upper template 1, and the exhaust groove 11 and the upper surface of the lower template 2 form an exhaust channel, the exhaust channel is arranged horizontally, and the lower surface of the exhaust channel is an inclined surface, specifically, the lower surface of the exhaust channel is an inclined surface that gradually tilts upward from away from the cavity to close to the cavity;

[0029] The exhaust channel includes an exhaust channel and a receiving sink 21, the receiving sink 21 is connected to the exhaust channel, the exhaust blocking member 5 is horizontally slidably installed in the exhaust channel, and the receiving sink is located below the exhaust channel, which further facilitates the rubber to enter the receiving sink 21, that is, the upper surface of the lower template 2 is provided with a receiving groove;

[0030] The exhaust blocking member 5 is slidably and detachably installed in the exhaust passage, and further comprises a resisting member 6, which is detachably installed in the fixed space and is used to fix the exhaust blocking member 5 in the exhaust passage. When the resisting member 6 fixes the exhaust blocking member 5 in the exhaust passage, the surface of the exhaust blocking member 5 away from the exhaust blocking member 5 forms the inner wall of the accommodating cavity.

[0031] Specifically, a resisting through hole is formed on the resisting member 6, and the fixing through hole is coaxial with the resisting through hole. By inserting a positioning pin into the fixing through hole, the resisting member 6 is fixed to the upper template 1 and the lower template 2, and the upper template 1 and the lower template 2 are fixed at the same time.

[0032] Specifically, in order to facilitate the removal of the exhaust plugging member 5, the exhaust plugging member 5 includes a plugging block 50, a sliding column 51 and a spring 52. The spring 52 is fixed between the plugging block 50 and the sliding column 51. The plugging block 50 is close to the cavity relative to the sliding column 51. The spring 52 can be elastically deformed along the length direction of the exhaust through hole. The spring 52 is a spring 52. When the exhaust plugging member 5 is fixed in the exhaust passage, the spring 52 is in a compressed state.

[0033] It also includes a limiting member 8 , which is fixed to one end of the sliding column 51 away from the blocking block 50 . The limiting member 8 is located outside the exhaust passage to limit the exhaust blocking member 5 .

[0034] After the rubber injection is completed, the positioning pin or bolt in the interference hole is removed, and the interference block is taken out to press the exhaust blocking piece 5 outward under the high pressure state of the cavity, and the spring 52 is compressed to press the sliding column 51 outward, and then the sliding column 51 or the limiter 8 is pulled outward under the action of external force to move the blocking block 50, thereby reducing the adhesion of rubber to the interference block. The rubber column formed in the exhaust channel with a regular shape and a small connection area with the rubber component is easier to clean relative to the circumferential flash, thereby increasing work efficiency.

[0035] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. Borderless mold with skeleton bushing, It is characterized in that It includes an upper template, a lower template and an exhaust plugging piece, wherein: The upper template is arranged above the lower template, the upper template is provided with an upper installation through hole, the lower template is provided with a lower installation through hole, and the lower installation through hole and the upper installation through hole form a cavity; An exhaust channel is provided on the upper mold plate and / or the lower mold plate, the exhaust channel is communicated with the molding cavity, and the exhaust plugging member is detachably installed in the exhaust channel; The exhaust passage is arranged transversely; When the exhaust plugging member is located at the innermost part of the exhaust passage, the inner surface of the exhaust plugging member constitutes the inner wall of the cavity; The exhaust passage comprises an exhaust passage and a receiving sink, the receiving sink is communicated with the exhaust passage, and the exhaust blocking member is horizontally slidably installed in the exhaust passage; The receiving trough is located below the exhaust passage; The lower surface of the exhaust channel is an inclined surface which gradually slopes downward from being away from the cavity to being close to the cavity; An exhaust groove is provided at the bottom of the upper template, and the exhaust groove and the upper surface of the lower template form an exhaust channel; The upper template and the lower template are respectively provided with an upper extension ear and a lower extension ear, a fixed space is formed between the upper extension ear and the lower extension ear, and also include a resistance piece, which is fixed on the upper extension ear and the lower extension ear and is used to block the exhaust blocking piece in the exhaust channel; The exhaust blocking member comprises a blocking block, a sliding column and an elastic member, wherein the elastic member is fixed between the blocking block and the sliding column, and the blocking block is closer to the cavity than the sliding column.

2. The borderless mold with a skeleton bushing according to claim 1, It is characterized in that It also includes a limiting piece, which is fixed to one end of the sliding column away from the blocking block, and is located outside the exhaust passage.

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