Glue feeding structure of rear mould sliding block
Technical Field
The utility model relates to the field of ejector pins, in particular to a rear mould sliding block glue feeding structure.
Background
Early slider glue feeding structures may be relatively simple and rely mainly on traditional glue feeding modes, such as setting a glue inlet directly at a fixed position of a die. The mode can meet the production requirement under the conditions of simple shape and low glue feeding requirement of a plastic part product, and the sliding block glue feeding structure is obviously improved along with continuous progress of a die design technology. For example, a structure of feeding glue in the sliding block is presented, and injection molding is realized from the side surface of a product or a position where the glue is difficult to directly feed through a runner arranged in the sliding block.
However, the existing sliding block glue feeding structure has the following problems:
The processing difficulty and the precision requirement of the slider glue feeding structure are higher. Because the complex runner system is required to be arranged in the sliding block, the dimensional accuracy and the surface quality are required to be strictly controlled in the processing process so as to ensure the injection molding effect, and in the mold opening and ejection process, if the sliding block is unsmooth in movement or the ejection mechanism is unreasonable in design, the product is easy to be blocked on the sliding block and cannot be ejected smoothly. This not only affects the production efficiency, but also causes damage to the mold and the product.
So how to design a slide block cement feeding structure with high ejection structure efficiency and high finished product yield is a problem which needs to be solved by the technicians in the field.
Disclosure of utility model
The utility model aims to provide a rear mould slide block glue feeding structure so as to solve the problems in the background technology.
In order to achieve the above purpose, the present utility model provides the following technical solutions:
the utility model provides a back mould slider advances glued structure, including slider, mold core, injection molding structure and thimble structure, a plurality of sliders are pegged graft in the week end of mold core, the slider of mold core both sides can open and shut under the drive of specific equipment, injection molding structure is fixed on the slider, and the mouth ejection of compact is in the mold core, thimble structure can be inserted by mold core bottom and side, and the thimble structure includes first thimble, second thimble and third thimble, and when moulding plastics, both sides slider folds, and the hole of moulding plastics aligns mold core department, and after the completion is moulded plastics, the slider separates, a plurality of ejector pins of injection molding structure bottom move to correspond with first thimble, second thimble respectively, and the second thimble upwards moves and will mould plastics the structure ejecting, and the hole of moulding plastics breaks away from with the finished product by force, the third thimble inserts at the side and will demold the finished product.
Further, the sliding block comprises a concave block and a convex block, a first inserting hole is formed in the concave block, a second inserting hole is formed in the convex block, and the convex block can be inserted into the peripheral end of the mold core.
Further, the device comprises a supporting block, wherein the supporting block penetrates through the first jack and is fixed with the sliding block, and the supporting block is fixed with specific equipment.
Further, the injection molding opening is inserted into a second jack, and the second jack is communicated to the cavity of the injection molding product.
Further, the injection molding structure comprises an injection molding channel, the port of the injection molding channel is communicated to an injection molding port, and a top position is arranged at the bottom end of the end face, connected with the injection molding port, of the injection molding channel.
Further, the bottom surface of the injection molding channel is higher than the top surface of the mold core, and when the first ejector pin and the second ejector pin rise, the first ejector pin and the second ejector pin are respectively contacted with the bottom surface of the injection molding channel and the ejection position at the same time.
Further, the mold core is provided with a jack corresponding to the thimble structure.
Furthermore, the injection molding openings can be multiple, and a top position is arranged beside the injection molding openings and is provided with a corresponding first thimble.
Furthermore, the mold core is provided with a mounting position beside the cavity of the injection molding finished product, and a module for the plastic finished product is fixed at the mounting position.
Further, the bottom of the thimble structure is fixed with a top plate, and the top plate provides power for the thimble structure to move.
Compared with the prior art, the utility model has the beneficial effects that:
The utility model provides a rear mold slide block glue feeding structure, wherein an injection molding channel is fixed with a slide block, the injection molding channel can be moved together by the slide block, the bottom end of the injection molding channel is provided with a top position, an injection molding port is provided with an injection molding port, when injection molding is performed, the slide block moves the injection molding port to an injection molding cavity port, the slide block is spliced with a mold core, after injection molding is completed, the slide block on one side drives the injection molding channel to separate from a finished product, the top position at the bottom of the injection molding channel corresponds to a second ejector pin, a first ejector pin corresponds to the injection molding channel, the first ejector pin and the second ejector pin are lifted upwards at the same time, the first ejector pin and the second ejector pin synchronously eject the injection molding structure upwards, a third ejector pin penetrates out of the mold core to demold the finished product, the integrity of the finished product is protected by moving the injection molding structure, the injection molding structure is integrated with the slide block, and the slide block drives the injection molding structure to move and the ejector pins to align, and the ejection action is completed.
Drawings
FIG. 1 is a perspective structure diagram of a back mold slide block glue feeding structure of the utility model;
FIG. 2 is an internal construction diagram of a rear mold slide glue feeding structure according to the present utility model;
FIG. 3 is an internal construction diagram of a rear mold slide glue feeding structure according to the present utility model;
FIG. 4 is a perspective view of a material ejection structure of a back mold slide glue feeding structure of the present utility model;
FIG. 5 is a side view of a ejector structure of a rear mold slide glue feeding structure according to the present utility model;
FIG. 6 is a sectional view of a ejector structure of a back mold slide glue feeding structure according to the present utility model;
The marks of all the components in the drawing are 1, a supporting block, 2, a sliding block, 21, a concave block, 22, a convex block, 23, a first jack, 24, a second jack, 3, a mold core, 31, a main body, 32, an installation position, 4, an injection molding structure, 41, an injection molding channel, 42, an injection molding opening, 43, a top position, 5, a thimble structure, 51, a first thimble, 52, a second thimble, 53, a third thimble and 6, and the finished product.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
Referring to fig. 1 to 6, a rear mold slide glue feeding structure is provided, which comprises a slide block 2, a mold core 3, an injection molding structure 4 and a thimble structure 5, wherein the slide blocks 2 are inserted into the peripheral end of the mold core 3, the slide blocks 2 on two sides of the mold core 3 can be opened and closed under the drive of specific equipment, the injection molding structure 4 is fixed on the slide blocks 2, the injection molding opening 42 is discharged in the mold core 3, the thimble structure 5 can be inserted from the bottom end and the side end of the mold core 3, the thimble structure 5 comprises a first thimble 51, a second thimble 52 and a third thimble 53, when the mold is molded, the slide blocks 2 on two sides are closed, injection molding holes are aligned to the mold core 3, the slide blocks 2 are separated after the injection molding is completed, a plurality of ejection positions 43 on the bottom end of the injection molding structure 4 are respectively corresponding to the first thimble 51 and the second thimble 52, the second thimble 52 is moved upwards to eject the injection molding structure 4, an injection molding hole is forcibly separated from a finished product 6, and the third thimble 53 is inserted into the side end to demould the finished product 6.
The sliding block 2 comprises a concave block 21 and a convex block 22, a first inserting hole 23 is formed in the concave block 21, a second inserting hole 24 is formed in the convex block 22, and the convex block 22 can be inserted into the peripheral end of the mold core 3. Comprising a supporting block 1, wherein the supporting block 1 passes through a first jack 23 and is fixed with a sliding block 2, and the supporting block 1 is fixed with specific equipment. The injection port 42 is inserted into the second receptacle 24, and the second receptacle 24 communicates with the cavity of the injection molded product.
The injection molding structure 4 comprises an injection molding channel 41, the port of the injection molding channel 41 is communicated with an injection molding port 42, and a top position 43 is arranged at the bottom end of the end face of the injection molding channel 41 connected with the injection molding port 42. The injection molding openings 42 may be plural, and a top 43 is disposed beside the injection molding openings 42 and is provided with a corresponding second thimble 52. The bottom surface of the injection molding channel 41 is higher than the top surface of the mold core 3, when the first ejector pin 51 and the second ejector pin 52 rise, the first ejector pin 51 and the second ejector pin 52 are simultaneously contacted with the bottom surface of the injection molding channel 41 and the top position 43 respectively, the bottom end of the first ejector pin 51 and the bottom end 52 of the second ejector pin are both fixed on a top plate, the top end of the first ejector pin 51 is higher than the top end of the second ejector pin 52 so as to ensure that the first ejector pin 51 and the second ejector pin 52 are simultaneously contacted with the bottom surface of the injection molding channel 41 and the top position 43 respectively when the top plate rises, and the mold core 3 is provided with jacks corresponding to the ejector pin structure 5.
The cavity of the injection molding finished product 6 is arranged in the main body 31 of the mold core 3, the mounting position 32 is arranged beside the cavity of the injection molding finished product 6, and a module for the plastic finished product 6 is fixed at the mounting position 32. The bottom of the thimble structure 5 is fixed with a top plate, and the top plate provides power for the thimble structure 5 to move.
The supporting block 1 is clamped in the first jack 23 of the sliding block 2, the sliding block 2 is divided into a concave block 21 and a convex block 22, the first jack 23 is arranged on the concave block 21, the convex block 22 is provided with a second jack 24, the supporting block 1 is fixed with a specific moving device, the moving device can control the opening and closing of the sliding blocks 2 at two sides, when the sliding blocks 2 at two sides are closed, the convex block 22 can be inserted into the mold core 3, the second jack 24 is also fixed with an injection molding structure 4, when the sliding blocks 2 at two sides are closed, an injection molding opening 42 of the injection molding structure 4 is aligned with a mold cavity of the mold core 3, the injection molding opening 42 is communicated with an injection molding channel 41, when injection molding, materials flow from the injection molding channels 41 to the injection molding openings 42, after injection molding is completed, the sliding blocks 2 on two sides are separated, the injection molding openings 42 are separated from the finished product 6, a plurality of top positions 43 are arranged at the bottom of the injection molding channels 41, the top positions 43 are aligned with the second ejector pins 52, the first ejector pins 51 and the second ejector pins 52 lift up to eject the injection molding channels 41, and the third ejector pins 53 eject the finished product 6 from the side ends, so that demoulding of the finished product 6 is completed.
The utility model provides a back mold slide block glue feeding structure, an injection molding channel 41 is fixed with a slide block 2, the injection molding channel 41 can move together by the slide block 2, the bottom end of the injection molding channel 41 is provided with a top position 43, an injection molding port is provided with an injection molding port 42, when injection molding is performed, the slide block 2 moves the injection molding port 42 to an injection molding cavity port, the slide block 2 is inserted into a mold core 3, after injection molding is completed, one side of the slide block 2 drives the injection molding channel 41 to separate from a finished product 6, the top position 43 at the bottom of the injection molding channel 41 corresponds to a second ejector pin 52, a first ejector pin 51 corresponds to the injection molding channel 41, the first ejector pin 51 and the second ejector pin 52 are lifted upwards at the same time, the first ejector pin 51 and the second ejector pin 52 synchronously eject the injection molding structure 4 upwards, a third ejector pin 53 penetrates out of the mold core 3 to demold the finished product 6, the integrity of the finished product 6 is protected by moving the injection molding structure 4, the slide block 2 drives the injection molding structure 4 to move to align with the ejector pins, and the ejection efficiency is high.
The foregoing is only a preferred embodiment of the present utility model, but the scope of the present utility model is not limited thereto, and any person skilled in the art, who is within the scope of the present utility model, should make equivalent substitutions or modifications according to the technical scheme of the present utility model and the inventive concept thereof, and should be covered by the scope of the present utility model.