But move air and assist blow needle and hollow forming die structure of glue overflow of hiding
Technical Field
The utility model relates to the field of dies, in particular to a movable air-assisted blowing needle and a hidden glue overflow hollow forming die structure.
Background
The mold is a tool for manufacturing molded products, products with different shapes are manufactured through different shapes of the mold, the T-shaped frame shown in fig. 1 comprises a cross rod and a middle vertical rod, the cross rod is internally hollowed out, one end of the vertical rod, far away from the cross rod, is provided with a mounting groove, the traditional internally hollowed-out products adopt fixed blowing needles to blow air to realize molding of a hollow structure, the fixed blowing needles and the air blowing can form air holes on the outer surface of the cross rod of the T-shaped frame to influence the integrity of the cross rod surface of the T-shaped frame, excessive hot glue in the molding process enters a flash channel through a flash port, a material handle is formed outside a cavity, the T-shaped frame cross rod and the material handle are connected together after the hot glue is cooled, the process needs to be cut off, labor intensity is high, time and labor are wasted, or a sliding block and other mechanisms are needed to be added on the mold to realize, and the cost of the mold is increased. There is a need for a mold structure that enables a blow pin that is movable into the interior and automatically removes flash.
Disclosure of utility model
The utility model provides a movable air-assisted blowing needle and a hidden glue overflow hollow forming die structure, and aims to solve the technical problems mentioned in the background art.
The movable air-assisted blowing needle and hidden glue overflow hollow forming die structure comprises a panel, an upper moving die, a lower fixed die, a top needle plate and a bottom plate from top to bottom, wherein the bottom of the upper moving die is embedded with an upper die core, the upper die core is provided with an arc-shaped upper transverse groove and an upper vertical groove, one side of the upper die core, which is far away from the upper vertical groove, is provided with an avoidance groove, the middle of the lower fixed die is embedded with a lower die core, the lower die core is provided with two lower transverse grooves and lower vertical grooves, the bottoms of the lower transverse grooves and the lower vertical grooves are provided with a plurality of ejector pins, the lower ends of the ejector pins are connected with the ejector plate, the lower fixed die is provided with a side sliding block and a side sliding rod at two sides of the lower die core along the length direction, the side sliding block faces the end face of the side arc-shaped groove, the middle of the side sliding rod is provided with an air passage, one end of the side sliding rod, which is close to the side sliding block, the needle is connected with the lower transverse grooves, the ejector pins are connected with the two ends of the ejector pins, the lower die core is connected with the bottom of the overflow grooves, and the ejector pins can extend along the length direction of the bottom of the ejector pins.
Further, the lower die core is provided with 7-shaped inclined ejector rods at two sides of the lower vertical groove, and the lower ends of the inclined ejector rods slidably penetrate through the lower die core and the lower fixed die and are slidably connected with the ejector plate.
Further, a base is arranged on the ejector plate, an inverted T-shaped chute is formed in the base, guide wheels are arranged at two ends of the lower side of the inclined ejector rod, and the guide wheels are arranged in the chute.
Further, an oil cylinder is arranged on the side face of the lower fixed die, and a piston rod of the oil cylinder is connected with the side sliding rod.
Further, the upper die core is provided with a glue inlet hole at one side of the upper vertical groove far away from the upper horizontal groove.
Compared with the prior art, the utility model has the beneficial effects that:
The utility model comprises a panel, an upper movable die, a lower fixed die, an ejector pin plate and a bottom plate, wherein an upper die core is embedded at the bottom of the upper movable die, the upper die core is provided with an arc-shaped upper transverse groove and an arc-shaped upper vertical groove, one side of the upper transverse groove, which is far away from the upper vertical groove, is provided with an avoidance groove, the avoidance groove can cover a side sliding block during die assembly, the middle of the lower fixed die is embedded with a lower die core, the lower die core is provided with two lower transverse grooves and lower vertical grooves, the bottoms of the lower transverse grooves and the lower vertical grooves are provided with a plurality of ejector pins, the lower ends of the ejector pins are connected with the ejector pin plate, the lower die core is provided with side sliding blocks and side sliding rods along the length direction, the end faces of the side sliding blocks, which face the side sliding rods, are provided with side arc-shaped grooves, one ends, close to the side sliding rods, of the side sliding blocks are provided with blowing pins, the blowing pins are connected with the air passages, the two ends, along the length direction, of the lower die core is provided with a glue groove, the overflow groove is communicated with the lower transverse groove, the ejector pins are provided with the ejector pins, and the lower ends of the ejector pins are connected with the ejector pin. When the mold is opened, the upper mold core and the lower mold core are separated, the side sliding block and the sideslip rod leave the product, the ejector rod and the ejector pin are pushed by the ejector plate upwards to push the overflow glue and the product, the overflow glue is separated from the product when the product is demolded, and the overflow glue is automatically removed.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings that are needed in the embodiments will be briefly described below, it being understood that the following drawings only illustrate some examples of the present utility model and therefore should not be considered as limiting the scope, and other related drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic view of a T-shaped frame structure;
FIG. 2 is a schematic diagram of a movable air-assisted blowing needle and a hidden glue overflow hollow molding die structure;
FIG. 3 is a cross-sectional view of a movable auxiliary blowing needle and a hidden glue overflow hollow molding die structure of the utility model;
FIG. 4 is a schematic diagram of the upper movable mold of the movable auxiliary blowing needle and the hidden glue overflow hollow molding mold structure;
FIG. 5 is a schematic diagram of the mating structure of the lower core and side slide rod of the movable auxiliary blowing needle and the hidden glue overflow hollow molding mold structure of the utility model;
FIG. 6 is a schematic diagram of a side-slipping rod of a movable auxiliary blowing needle and a hidden glue overflow hollow forming mold structure of the utility model leaving a lower vertical groove;
FIG. 7 is a schematic view of the structure of the ejector pin, the inclined ejector rod and the ejector rod of the movable auxiliary blowing needle and the hidden glue overflow hollow forming mold;
FIG. 8 is a cross-sectional view of a side slide bar of a hollow mold structure with a removable air assist blow pin and a hidden flash according to the present utility model.
Description of the main reference signs
10. A panel;
20. An upper movable die, 201, an upper die core, 2011, an upper transverse groove, 2012, an upper vertical groove, 2013 and an avoidance groove;
30. Lower die core 301, lower die core 3011, lower horizontal groove 3012, lower vertical groove 3013, glue overflow groove 302, sideslip rod 3021, air passage 3022, blowing needle 303, sideslip block 3031, side arc groove 304, oil cylinder;
40. Ejector plate, 401, inclined ejector rod, 402, ejector rod, 403, ejector pin;
50. A bottom plate;
60. T-shaped frame, 601, cross bar, 602, vertical bar, 6021, mounting groove, 6022 and square hole.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present utility model more apparent, the technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model, and it is apparent that the described embodiments are some embodiments of the present utility model, but not all embodiments. All other embodiments, based on the embodiments of the utility model, which are apparent to those of ordinary skill in the art without inventive faculty, are intended to be within the scope of the utility model. Thus, the following detailed description of the embodiments of the utility model, as presented in the figures, is not intended to limit the scope of the utility model, as claimed, but is merely representative of selected embodiments of the utility model. All other embodiments, based on the embodiments of the utility model, which are apparent to those of ordinary skill in the art without inventive faculty, are intended to be within the scope of the utility model.
In the present utility model, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed, mechanically connected, electrically connected, directly connected, indirectly connected via an intervening medium, or in communication between two elements or in an interaction relationship between two elements. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.
In the present utility model, unless expressly stated or limited otherwise, a first feature "above" or "below" a second feature may include both the first and second features being in direct contact, as well as the first and second features not being in direct contact but being in contact with each other through additional features therebetween. Moreover, a first feature being "above," "over" and "on" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is higher in level than the second feature. The first feature being "under", "below" and "beneath" the second feature includes the first feature being directly under and obliquely below the second feature, or simply means that the first feature is less level than the second feature.
Examples
The T-shaped frame 60 shown in fig. 1 comprises a cross bar 601 and a middle vertical bar 602, wherein the cross bar 601 is hollow, a mounting groove 6021 is formed in one end, far away from the cross bar 601, of the vertical bar 602, and square holes 6022 are symmetrically formed in two sides of the vertical bar 602.
Referring to fig. 2, the utility model discloses a movable air-assisted blowing needle and hidden glue overflow hollow forming mold structure, which comprises a panel 10, an upper movable mold 20, a lower fixed mold 30, a top needle plate 40 and a bottom plate 50 from top to bottom.
Referring to fig. 3 to 8, an upper mold core 201 is embedded at the bottom of the upper movable mold 20, the upper mold core 201 is provided with an arc-shaped upper transverse groove 2011 and an upper vertical groove 2012, and the upper mold core 201 is provided with an avoidance groove 2013 at one side of the upper transverse groove 2011 far from the upper vertical groove 2012; the lower die core 301 is embedded in the middle of the lower die core 30, the lower die core 301 is provided with two lower transverse grooves 3011 and lower vertical grooves 3012, a plurality of ejector pins 403 are arranged at the bottoms of the lower transverse grooves 3011 and the lower vertical grooves 3012, the lower ends of the ejector pins 403 are connected with the ejector pin plates 40, the lower die core 301 is provided with side sliding blocks 303 and side sliding rods 302 at two sides of the lower die core 301 along the length direction, avoidance grooves 2013 of the upper die core 201 provide a sliding space for the side sliding blocks 303, the end surfaces of the side sliding blocks 303, facing the side sliding rods 302, are provided with side arc-shaped grooves 3031, the middle of the side sliding rods 302 is provided with air passages 3021, one ends of the side sliding rods 302, close to the side sliding blocks 303, are provided with blowing pins 3022, and the blowing pins 3022 are connected with the air passages 3021; specifically, during mold closing, 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, the inclined guide post arranged at the bottom of the upper movable mold 20 drives the side sliding block 303 to be close to the lower mold core 301, the side arc-shaped groove 3031, 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, 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, meanwhile, the side sliding bar 302 is arranged in the cavity for forming the mounting groove 6021 of the T-shaped frame 60, further, the upper mold core 201 is provided with a glue inlet hole at one side of the upper vertical groove 2012 far away from the upper transverse groove 2011, hot melt glue enters the cavity from the glue inlet, and is blown into the cavity through the air passage 3021 and the blowing needle 3022 of the side sliding bar 302 towards the cavity, so that the injected hot glue uniformly covers the inner wall of the cavity for forming the hollow structure inside the transverse rod 601 of the T-shaped frame 60. When the mold is opened, the upper mold core 201 and the lower mold core 301 are separated, the side sliding block 303 and the side sliding rod 302 leave the T-shaped frame 60, and the ejector pin plate 40 pushes the ejector pin 403 to push the T-shaped frame 60 upwards to be demolded from the lower mold core 301, so that the forming and demolding of the T-shaped frame 60 are realized.
Referring to fig. 3-8, two ends of the lower mold insert 301 along the length direction are provided with glue overflow grooves 3013, the glue overflow grooves 3013 are communicated with the lower transverse grooves 3011, ejector rods 402 are arranged at the bottoms of the glue overflow grooves 3013, and the ejector rods 402 extend downwards and slidably to penetrate through the lower mold insert 301 and the lower fixed mold 30 to be connected with the ejector pin plates 40. Specifically, when gas passes through the blowing needle 3022 from the air passage 3021 to the transverse cavity, redundant hot melt adhesive enters the glue overflow groove 3013, a material handle is formed outside the cavity, after the hot melt adhesive is cooled, the cross rod 601 of the T-shaped frame 60 is connected with the material handle, during mold opening, the ejector pin plate 40 pushes the ejector pin 403 and the ejector pin 402 upwards, the ejector pin 403 pushes the T-shaped frame 60, the ejector pin 403 pushes the material handle in the glue overflow groove 3013, the glue overflow is automatically removed while demolding of a product is realized, the subsequent processing procedure is omitted, and the production efficiency is improved.
Referring to fig. 5 to 7, the lower mold insert 301 is provided with 7-shaped inclined ejector pins 401 at both sides of the lower vertical groove 3012, and the lower ends of the inclined ejector pins 401 slidably penetrate through the lower mold insert 301 and the lower mold insert 30 to be slidably connected with the ejector pin plate 40. Specifically, a base is installed on the ejector plate 40, an inverted T-shaped chute is formed in the base, guide wheels are installed at two ends of the lower side of the inclined ejector rod 401, and the guide wheels are arranged in the chute. Specifically, during mold closing, the upper ends of the inclined ejector rods 401 are abutted against two sides of the side sliding rods 302 for forming square holes 6022 on two sides of the vertical rods 602 of the T-shaped frames 60, during mold opening, the ejector plate 40 pushes the inclined ejector rods 401 upwards, the inclined ejector rods 401 are ejected obliquely upwards, meanwhile, guide wheels on the lower sides of the inclined ejector rods 401 slide along the sliding grooves, and the upper ends of the inclined ejector rods 401 gradually withdraw from the vertical rods 602 of the T-shaped frames 60, so that the forming and demolding of the square holes 6022 on two sides of the vertical rods 602 of the T-shaped frames 60 are realized.
Referring to fig. 2 and 5, an oil cylinder 304 is installed on the side surface of the lower fixed mold 30, a piston rod of the oil cylinder 304 is connected with a side sliding rod 302, and the oil cylinder 304 is controlled to drive the side sliding rod 302 to insert into or leave from a cavity, so that the action of the side sliding rod 302 during automatic mold closing and opening is realized.
The above description is only of the preferred embodiments of the present utility model and is not intended to limit the present utility model, and various modifications and variations may be made to the present utility model by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.