Movable gas-assisted blowing needle and latent glue overflow hollow forming mold structure

Abstract

The utility model provides a movable gas-assisted blowing needle and latent glue overflow hollow forming mold structure which comprises a panel, an upper movable mold, a lower fixed mold, an ejector plate and a bottom plate, an upper mold core is embedded in the bottom of the upper movable mold, and an upper transverse groove and an upper vertical groove are formed in the upper mold core; a lower mold core is embedded in the middle of the lower fixed mold, two lower transverse grooves and a lower vertical groove are formed in the lower mold core, ejector pins are installed at the bottoms of the lower transverse grooves and the lower vertical groove, the lower fixed mold is provided with side sliding blocks and side sliding rods, side arc-shaped grooves are formed in the side sliding blocks, air channels are formed in the middles of the side sliding rods, and blowing needles are embedded in the air channels; the bottom of the glue overflowing groove is communicated with the lower transverse groove, and an ejector rod is arranged at the bottom of the glue overflowing groove. During mold closing, the upper mold core, the lower mold core and the side sliding block form a cavity for forming the T-shaped frame, the side sliding rod forms the mounting groove, and meanwhile, the blowing needle is moved to enter the inner forming hollow structure; when the mold is opened, the upper mold core and the lower mold core are separated, the side sliding block and the side sliding rod leave the product, the ejector rod and the ejector pin upwards push the overflowing glue and the product, the overflowing glue is separated from the product during demolding, and the overflowing glue is automatically removed.

Description

Technical Field

[0001] The utility model relates to the field of molds, in particular to a movable gas-assisted blowing needle and a latent glue overflow hollow molding mold structure. Background Art

[0002] The mold is a tool used to make molded products. Different shapes of molds are used to make products of different shapes, such as Figure 1 The T-frame shown includes a horizontal bar and a vertical bar in the middle. The horizontal bar is hollowed out inside, and a mounting groove is opened at one end of the vertical bar away from the horizontal bar. Traditional products with hollowed-out inside use a fixed blow needle to blow air to achieve the molding of the hollow structure. The fixed blow needle will form air holes on the outer surface of the T-frame horizontal bar, affecting the integrity of the surface of the T-frame horizontal bar. In addition, during the molding process, excess hot glue enters the overflow channel through the overflow port, forming a material handle outside the cavity. After the hot glue cools, the T-frame horizontal bar is connected to the material handle and needs to be cut off. This process requires manual operation, which is labor-intensive, time-consuming and labor-intensive; or it is necessary to add a slider or other mechanism to the mold to achieve this, which increases the mold cost. Therefore, there is an urgent need for a mold structure that can realize a blow needle that can be moved to the inside and automatically remove the overflow glue. Utility Model Content

[0003] The utility model provides a movable gas-assisted blowing needle and a latent overflowing glue hollow forming mold structure, aiming to solve the technical problems mentioned in the above background technology.

[0004] To achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a movable gas-assisted blowing needle and a latent overflowing hollow molding mold structure, comprising a panel, an upper movable mold, a lower fixed mold, an ejector plate and a bottom plate from top to bottom, an upper mold core is embedded at the bottom of the upper movable mold, the upper mold core is provided with an arc-shaped upper horizontal groove and an upper vertical groove, and the upper mold core is provided with an avoidance groove on the side of the upper horizontal groove away from the upper vertical groove; a lower mold core is embedded in the middle of the lower fixed mold, the lower mold core is provided with two lower horizontal grooves and a lower vertical groove, a plurality of ejectors are installed at the bottom of the lower horizontal groove and the lower vertical groove, and the ejector pins are provided at the bottom. The lower mold is provided with side sliders and side sliding rods on both sides of the lower mold core along the length direction, the side sliders are provided with side arc grooves on the end faces facing the side sliding rods, an air passage is provided in the middle of the side sliding rods, a blow needle is installed at one end of the side sliding rods close to the side sliders, and the blow needle is connected to the air passage; the lower mold core is provided with overflow grooves at both ends along the length direction, one side of the bottom of the overflow groove is connected to the lower horizontal groove, a push rod is provided at the bottom of the overflow groove, and the push rod extends downward and can slide through the lower mold core and the lower fixed mold to connect to the ejector plate.

[0005] Furthermore, the lower mold core is provided with 7-shaped inclined ejector rods on both sides of the lower vertical groove, and the lower ends of the inclined ejector rods can slide through the lower mold core, and the lower fixed mold can slideably connect the ejector plate.

[0006] Furthermore, a base is installed on the ejector plate, and an inverted T-shaped slide groove is opened on the base. Guide wheels are installed at both ends of the lower side of the inclined ejector rod, and the guide wheels are placed in the slide groove.

[0007] Furthermore, an oil cylinder is installed on the side of the lower fixed mold, and the piston rod of the oil cylinder is connected to the side sliding rod.

[0008] Furthermore, the upper mold core is provided with a glue inlet hole on a side of the upper vertical groove away from the upper horizontal groove.

[0009] Compared with the prior art, the beneficial effects of the utility model are:

[0010] The utility model comprises a panel, an upper movable mold, a lower fixed mold, an ejector plate and a bottom plate. An upper mold core is embedded in the bottom of the upper movable mold. The upper mold core is provided with an arc-shaped upper horizontal groove and an upper vertical groove. The upper mold core is provided with an avoidance groove at a side of the upper horizontal groove away from the upper vertical groove. When the mold is closed, the avoidance groove can cover a side slide block. A lower mold core is embedded in the middle of the lower fixed mold. The lower mold core is provided with two lower horizontal grooves and a lower vertical groove. A plurality of ejectors are installed at the bottom of the lower horizontal groove and the lower vertical groove. The lower ends of the ejectors are connected to the ejector plate. The lower fixed mold is provided with side slide blocks and side slide bars at both sides of the lower mold core along the length direction. The end surface of the side slide block facing the side slide bar is provided with a side arc groove. An airway is provided in the middle of the side slide bar. A blow pin is installed at one end of the side slide bar close to the side slide block. The blow pin is connected to the airway. Overflow glue grooves are provided at both ends of the lower mold core along the length direction. The overflow glue groove is connected to the lower horizontal groove. An ejector bar is provided at the bottom of the overflow glue groove. The lower end of the ejector bar is connected to the ejector plate. When the mold is closed, the upper horizontal groove, lower horizontal groove, upper vertical groove, lower vertical groove and side arc groove are closed to form a cavity for forming a T-shaped frame. The side sliding rod is placed in the cavity to form the mounting groove. Air is blown into the cavity through the side sliding rod to form the hollow structure inside the horizontal rod, and the excess hot glue enters the overflow groove; when the mold is opened, the upper mold core and the lower mold core are separated, the side slider and the side sliding rod leave the product, and the ejector plate pushes the ejector rod and the ejector to push the overflow glue and the product upward. The overflow glue is separated from the product when the product is demolded, thereby realizing automatic removal of the overflow glue. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] In order to more clearly illustrate the technical solution of the implementation mode of the utility model, the drawings required for use in the implementation mode will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the utility model and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying creative work.

[0012] Figure 1 It is a schematic diagram of the T-frame structure;

[0013] Figure 2 This is a schematic diagram of the structure of the utility model's movable air-assisted blowing needle and latent overflowing glue hollow molding mold;

[0014] Figure 3 It is a cross-sectional view of the movable air-assisted blowing needle and the latent overflowing hollow molding mold structure of the utility model;

[0015] Figure 4 It is a structural schematic diagram of the upper movable mold of the utility model's movable air-assisted blowing needle and latent overflowing glue hollow molding mold structure;

[0016] Figure 5 It is a schematic diagram of the matching structure of the lower mold core and the side sliding rod of the utility model of the movable air-assisted blowing needle and the latent overflowing glue hollow molding mold structure;

[0017] Figure 6 It is a structural schematic diagram of the movable air-assisted blowing needle and the side sliding rod of the latent overflowing hollow forming mold structure of the utility model leaving the lower vertical groove;

[0018] Figure 7 It is a schematic diagram of the movable gas-assisted blowing needle and the ejector pin, inclined ejector rod and ejector rod structure of the latent overflowing glue hollow molding mold structure of the utility model;

[0019] Figure 8 The utility model is a cross-sectional view of a side sliding rod of a movable gas-assisted blowing needle and a latent type overflowing glue hollow forming mold structure.

[0020] Main component symbols

[0021] 10. Panel;

[0022] 20, upper movable mold; 201, upper mold core; 2011, upper horizontal groove; 2012, upper vertical groove; 2013, avoidance groove;

[0023] 30, lower fixed mold; 301, lower mold core; 3011, lower horizontal groove; 3012, lower vertical groove; 3013, overflow glue groove; 302, side slide bar; 3021, airway; 3022, blow needle; 303, side slide; 3031, side arc groove; 304, oil cylinder;

[0024] 40, ejector plate; 401, inclined ejector rod; 402, ejector rod; 403, ejector pin;

[0025] 50. Bottom plate;

[0026] 60, T-shaped frame; 601, horizontal bar; 602, vertical bar; 6021, mounting groove; 6022, square hole. DETAILED DESCRIPTION

[0027] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work belong to the scope of protection of the utility model. Therefore, the following detailed description of the embodiments of the utility model provided in the drawings is not intended to limit the scope of the utility model for which protection is sought, but merely represents the selected embodiments of the utility model. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work belong to the scope of protection of the utility model.

[0028] In the present invention, unless otherwise clearly specified and limited, the terms "install", "connect", "connect", "fix" and the like should be understood in a broad sense, for example, it 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. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0029] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0030] Example

[0031] like Figure 1 The T-shaped frame 60 shown includes a horizontal bar 601 and a vertical bar 602 in the middle. The horizontal bar 601 is hollow inside, and a mounting groove 6021 is formed at one end of the vertical bar 602 away from the horizontal bar 601 . Square holes 6022 are symmetrically formed on both sides of the vertical bar 602 .

[0032] Reference Figure 2As shown, the utility model discloses a movable gas-assisted blowing needle and a latent overflowing hollow molding mold structure, which comprises a panel 10, an upper movable mold 20, a lower fixed mold 30, an ejector plate 40 and a bottom plate 50 from top to bottom.

[0033] Reference Figure 3-8 As shown, an upper mold core 201 is embedded at the bottom of the upper movable mold 20, and the upper mold core 201 is provided with an arc-shaped upper transverse groove 2011 and an upper vertical groove 2012, and an avoidance groove 2013 is provided on the side of the upper transverse groove 2011 away from the upper vertical groove 2012; a lower mold core 301 is embedded in the middle of the lower fixed mold 30, and the lower mold core 301 is provided with two lower transverse grooves 3011 and a lower vertical groove 3012, and a plurality of ejector pins 403 are installed at the bottom of the lower transverse groove 3011 and the lower vertical groove 3012, and the lower ends of the ejector pins 403 are connected to the ejector pins 403. Needle plate 40, lower fixed mold 30 is provided with side sliders 303 and side slide bars 302 on both sides of lower mold core 301 along the length direction, avoidance groove 2013 of upper mold core 201 provides space for side slider 303 to slide, side slider 303 is provided with side arc groove 3031 on the end surface facing side slide bar 302, air passage 3021 is provided in the middle of side slide bar 302, blow needle 3022 is installed at one end of side slide bar 302 close to side slider 303, blow needle 3022 is connected to air passage 3021; ​​specifically, mold clamping When the upper mold core 201 and the lower mold core 301 are closed, the upper transverse groove 2011 and the lower transverse groove 3011 are closed, the upper vertical groove 2012 and the lower vertical groove 3012 are closed, and the inclined guide column arranged at the bottom of the upper movable mold 20 drives the side slide block 303 to approach the lower mold core 301, and the side arc groove 3031 and the upper transverse groove 2011 and the lower transverse groove 3011 form a cavity for forming the transverse rod 601 of the T-shaped frame 60, and the upper vertical groove 2012 and the lower vertical groove 3012 form a cavity for forming the vertical rod 602 of the T-shaped frame 60. The side slide bar 302 is placed in the mold cavity closed by the upper vertical groove 2012 and the lower vertical groove 3012, and is used to form the mounting groove 6021 of the T-frame 60. Furthermore, the upper mold core 201 is provided with a glue inlet hole on the side of the upper vertical groove 2012 away from the upper horizontal groove 2011, and the hot melt glue enters the mold cavity from the glue inlet, and blows into the mold cavity through the air channel 3021 and the blow needle 3022 of the side slide bar 302, so that the injected hot glue evenly covers the inner wall of the mold cavity, and is used to form the internal hollow structure of the horizontal bar 601 of the T-frame 60. When the mold is opened, the upper mold core 201 and the lower mold core 301 are separated, the side slide bar 303 and the side slide bar 302 leave the T-frame 60, and the ejector plate 40 pushes the ejector 403 upward to push the T-frame 60 to demold from the lower mold core 301, that is, the molding and demolding of the T-frame 60 are realized.

[0034] Reference Figure 3-8As shown, the lower mold core 301 has overflowing glue grooves 3013 at both ends along the length direction, and the overflowing glue grooves 3013 are connected to the lower transverse grooves 3011. A push rod 402 is arranged at the bottom of the overflowing glue groove 3013, and the push rod 402 extends downward and can slide through the lower mold core 301 and the lower fixed mold 30 to connect the ejector plate 40. Specifically, when the gas passes from the airway 3021 through the blow needle 3022 to the horizontal cavity, the excess hot melt adhesive enters the overflowing glue groove 3013, and forms a material handle outside the cavity. After the hot melt adhesive cools, the cross bar 601 of the T-frame 60 is connected with the material handle. When the mold is opened, the ejector plate 40 pushes the ejector 403 and the push rod 402 upward, and the ejector 403 pushes the T-frame 60, and the ejector 403 pushes the material handle in the overflowing glue groove 3013, so that the overflowing glue is automatically removed while the product is demoulded, and the subsequent processing steps are omitted, thereby improving production efficiency.

[0035] Reference Figure 5-7 As shown, the lower mold core 301 is provided with a 7-shaped inclined ejector rod 401 on both sides of the lower vertical groove 3012, and the lower end of the inclined ejector rod 401 can slide through the lower mold core 301 and the lower fixed mold 30 to be slidably connected to the ejector plate 40. Specifically, a base is installed on the ejector plate 40, and the base is provided with an inverted T-shaped slide groove, and guide wheels are installed at both ends of the lower side of the inclined ejector rod 401, and the guide wheels are placed in the slide groove. Specifically, when the mold is closed, the upper end of the inclined ejector rod 401 abuts against the two sides of the side sliding rod 302 to form the square holes 6022 on both sides of the vertical rod 602 of the T-frame 60; when the mold is opened, the ejector plate 40 pushes the inclined ejector rod 401 upward, and the inclined ejector rod 401 is ejected obliquely upward while the lower guide wheel of the inclined ejector rod 401 slides along the slide groove, and the upper end of the inclined ejector rod 401 gradually withdraws from the vertical rod 602 of the T-frame 60, thereby realizing the forming and demoulding of the square holes 6022 on both sides of the vertical rod 602 of the T-frame 60.

[0036] Reference Figure 2 , Figure 5 As shown, a cylinder 304 is installed on the side of the lower fixed mold 30, and the piston rod of the cylinder 304 is connected to the side sliding rod 302. The cylinder 304 is controlled to drive the side sliding rod 302 to insert into or leave the cavity, thereby realizing the movement of the side sliding rod 302 during automatic mold closing and mold opening.

[0037] The above description is only the preferred implementation of the utility model, and is not intended to limit the utility model. For those skilled in the art, the utility model can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A removable gas-assisted blowing needle and a latent overflowing hollow molding mold structure, characterized in that: The invention comprises a panel, an upper movable mold, a lower fixed mold, an ejector plate and a bottom plate from top to bottom, an upper mold core is embedded at the bottom of the upper movable mold, the upper mold core is provided with an arc-shaped upper transverse groove and an upper vertical groove, and the upper mold core is provided with an avoidance groove on the side of the upper transverse groove away from the upper vertical groove; a lower mold core is embedded in the middle of the lower fixed mold, the lower mold core is provided with two lower transverse grooves and a lower vertical groove, a plurality of ejectors are installed at the bottom of the lower transverse groove and the lower vertical groove, the lower ends of the ejectors are connected to the ejector plate, and the lower fixed mold is provided with an arc-shaped upper transverse groove and an upper vertical groove on the lower mold core. Side sliding blocks and side sliding rods are arranged on both sides in the degree direction, the side sliding block is provided with a side arc groove on the end surface facing the side sliding rod, an air channel is arranged in the middle of the side sliding rod, a blow needle is installed at one end of the side sliding rod close to the side sliding block, and the blow needle is connected to the air channel; overflow glue grooves are arranged at both ends of the lower mold core along the length direction, one side of the bottom of the overflow glue groove is connected to the lower horizontal groove, a push rod is arranged at the bottom of the overflow glue groove, and the push rod extends downward and can slide through the lower mold core and the lower fixed mold to connect the push pin plate.

2. The movable gas-assisted blowing needle and latent overflowing hollow molding mold structure according to claim 1 are characterized in that: The lower die core is provided with 7-shaped inclined ejector rods on both sides of the lower vertical groove, and the lower ends of the inclined ejector rods can slide through the lower die core, and the lower fixed die can slideably connect with the ejector plate.

3. The movable gas-assisted blowing needle and latent overflowing hollow molding mold structure according to claim 2 are characterized in that: A base is installed on the ejector plate, and an inverted T-shaped slide groove is opened on the base. Guide wheels are installed at both ends of the lower side of the inclined ejector rod, and the guide wheels are placed in the slide groove.

4. The movable gas-assisted blowing needle and latent overflowing hollow molding mold structure according to claim 1 are characterized in that: An oil cylinder is installed on the side of the lower fixed mold, and the piston rod of the oil cylinder is connected to the side sliding rod.

5. The movable gas-assisted blowing needle and latent overflowing hollow molding mold structure according to claim 1 is characterized in that: The upper mold core is provided with a glue inlet hole on a side of the upper vertical groove away from the upper horizontal groove.

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