Injection molding mold for pulp molding cushion packaging
Technical Field
The invention relates to the technical field of injection molding, in particular to a pulp molding cushion packaging injection molding mold.
Background
The paper pulp molding has good shockproof, anti-impact, anti-static and anti-corrosion effects, has no pollution to the environment, is more beneficial to the export of products of manufacturers, and is widely applied to the packaging of industries such as electronics, electric appliances, computers, mechanical parts, industrial instruments, artware glass, ceramics, toys, medicines and the like.
Generally, the pulp molding is mostly formed by injection molding of a forming mold; however, the existing forming die mainly has the following problems in the using process; a, forming dies are mostly of a fixed type; the application of the paper pulp molding board with various models is difficult; when the pulp molding of various models needs to be manufactured, the moulds of different models need to be replaced; the operation is complex, and the cost is wasted; the stacked forming dies in the market are not firmly connected, relative shaking is easily generated between the forming dies to cause pulp to enter, the existing stacked forming dies are not convenient to disassemble, and the dies are easily damaged by disassembling; affecting the forming quality of pulp molding.
Therefore, in order to improve the forming quality of the pulp molding, the forming die can be used for forming the pulp molding of different models; the invention provides a pulp molding cushion packaging injection molding mold.
Disclosure of Invention
In order to achieve the purpose, the invention adopts the following technical scheme that the injection molding mold for the pulp molding cushion packaging comprises a bottom plate, an outer module and an inner module; the number of the outer modules and the number of the inner modules are both a plurality; the upper end of the bottom plate is provided with a limiting hole, and a clamping groove is arranged in the limiting hole of the bottom plate; the outer die groups are mutually clamped and fixed in the limiting holes of the bottom plate; the inner module is arranged in the outer module in a clamping manner; wherein:
the outer die set comprises an outer die sleeve, a clamping spring, a clamping sheet, a clamping rope, a cylindrical sleeve, a clamping joint and an auxiliary spring; the outer die sleeve is of a square structure, and the middle part of the outer die sleeve is of a circular through hole structure; four fixing holes are uniformly formed in the outer wall of the upper end of the outer die sleeve, and rectangular limiting grooves are formed in the fixing holes; rectangular limiting holes are symmetrically formed in the outer wall of the upper end of the outer die sleeve; the outer die is characterized in that the outer wall of the lower end of the outer die sleeve is uniformly provided with a cylindrical sleeve, the inside of the cylindrical sleeve is provided with a clamping head in a sliding fit mode, and the clamping head is connected with the inner wall of the cylindrical sleeve through an auxiliary spring; the clamping pieces are symmetrically arranged on the side wall of the outer die sleeve in a sliding fit mode, and the clamping pieces are connected with the inner wall of the outer die sleeve through clamping springs; the clamping sheet is connected with the clamping head through a clamping rope arranged in the outer die sleeve in a movable connection mode; the stacking height of the outer die sleeves is changed by stacking different numbers of outer die groups; further completing the shaping of the paper pulp molding plates with different depths, and manually pressing the clamping sheet inwards by adopting a round iron column to drive the clamping joint to be separated from the inner part of the fixing hole of the last outer mold sleeve when the adjacent outer mold groups need to be disassembled; the operation is simple, convenient and fast.
The inner mold group comprises a top mold block, a fixing spring, a U-shaped fixing hook, an inner magnetic ring, a mold sleeve unit, a top mold unit and an outer clamping mold plate; the lower end of the top module is provided with a circular hole, and the inner wall of the circular hole is provided with a clamping groove; the side wall of the upper end of the top module is uniformly provided with U-shaped fixed hooks in a sliding connection mode, and the U-shaped fixed hooks are connected with the inner wall of the top module through fixed springs; an annular groove is formed in the outer wall of the lower end of the top module, and an inner magnetic ring is arranged in the annular groove; a plurality of die sleeve units are arranged at the lower end of the top module in a clamping manner; the outer clamping templates are uniformly arranged on the outer wall of the die sleeve unit, the outer clamping templates are fixed through the top die unit, and the top die unit is arranged on the outer wall of the die sleeve unit at the lowest end of the top die block in a clamping manner; the lower end of the outer clamping template is provided with a through hole.
Preferably; the die sleeve unit comprises a square die block, an execution spring, an execution clamping block, a clamping rope and a pulling plate; the upper end of the square module is of a circular structure, the lower end of the square module is of a rectangular structure, the lower end of the square module is provided with a circular groove, and concave holes are uniformly formed in the inner wall of the circular groove along the circumferential direction of the circular groove; the upper end of the square module is uniformly provided with execution fixture blocks in a sliding fit manner along the circumferential direction of the square module, and the execution fixture blocks are connected with the inner wall of the square module through execution springs; the clamping rope is of a multi-end structure, the ends of the clamping rope are respectively connected to the inner wall of the execution clamping block, the other end of the clamping rope is located in the lower end groove of the square module, and one end of the clamping rope is connected with the pulling plate; connecting a proper number of die sleeve units in series according to the depth of the pulp molding board to be manufactured; in the process of connecting the die sleeve units in series, when the two die sleeve units need to be separated, the execution clamping block is retracted into the square module by pulling the pulling plate under the action of the clamping rope; then the two die sleeve units are separated by manual pulling; the paper pulp molding plates with different depths can be conveniently molded by the arranged die sleeve unit, so that the waste of a large number of existing dies with different models is avoided; and resources are saved.
Preferably; the top die unit comprises a clamping module, a limiting fixture block, an adjusting spring, a string pulling rope, a pressing fixture plate and a pressing spring; the lower end of the clamping module is of a spherical structure; the upper end of the clamping module is provided with a limiting fixture block in a sliding fit mode, and the limiting fixture block is connected with the inner wall of the clamping module through an adjusting spring; a string pulling rope is arranged in the clamping module in a sliding fit mode, and the other end of the string pulling rope is connected to the limiting clamping block respectively; the lower end of the string pulling rope is connected to the pressing clamping plate, the pressing clamping plate is arranged at the lower end of the clamping module in a sliding fit mode, and the pressing clamping plate is connected with the inner wall of the lower end of the clamping module through a pressing spring; clamping the clamping module into the circular groove of the square module, fixing the clamping module through a limiting clamping block, and when the top die unit needs to be disassembled; pulling out a rubber plug of a through hole at the lower end of the outer clamping template, and inwards extruding and pressing the clamping plate by adopting a round iron column to ensure that the limiting clamping block is separated from the inside of a concave hole of a round groove in the square module; the top die unit is taken down manually; the portable detachable top die unit can facilitate the forming of the pulp molding plate, and the square die is transformed into a round top head structure through the top die unit, so that the structure is simple, and the shape structure of the die is convenient to transform.
Preferably; the outer wall of the through hole at the lower end of the outer clamping template is fixed through a rubber plug; the rubber plug is arranged on the outer wall of the through hole at the lower end of the outer clamping template, so that the outer paper pulp can be prevented from flowing into the inner part of the paper pulp clamping template; the cleanness of the inner part of the inner module is ensured.
Advantageous effects
Firstly, the stacking height of the outer die sleeves is changed by stacking different numbers of outer die groups; further completing the shaping of the paper pulp molding plates with different depths, and manually pressing the clamping sheet inwards by adopting a round iron column to drive the clamping joint to be separated from the inner part of the fixing hole of the last outer mold sleeve when the adjacent outer mold groups need to be disassembled; the operation is simple, convenient and quick;
the paper pulp molding plate with different depths can be conveniently molded by the arranged die sleeve unit, so that the waste of a large number of existing dies with different models is avoided; and resources are saved;
the portable detachable top die unit can facilitate the forming of the pulp molding plate, and the square die is converted into the round top head structure through the top die unit, so the structure is simple, and the shape structure of the die is convenient to convert.
Drawings
The invention is further illustrated with reference to the following figures and examples.
FIG. 1 is a schematic perspective view of the present invention;
FIG. 2 is a cross-sectional view of an inner mold set of the present invention;
FIG. 3 is a cross-sectional view taken along line A-A of FIG. 2 in accordance with the present invention;
FIG. 4 is a schematic perspective view of an outer mold assembly according to the present invention;
fig. 5 is a sectional view taken along line B-B of fig. 4 in accordance with the present invention.
Detailed Description
Embodiments of the present invention will be described below with reference to the drawings. In this process, the width of the lines or the size of the components in the drawings may be exaggerated for clarity and convenience of description.
The following terms are defined based on the functions of the present invention, and may be different depending on the intention of the user or the operator or the convention. Therefore, these terms are defined based on the entire contents of the present specification.
As shown in fig. 1 to 5, an injection molding mold for pulp molding cushion packaging comprises a base plate 1, an outer mold group 2 and an inner mold group 3; the number of the outer die groups 2 and the number of the inner die groups 3 are both a plurality; the upper end of the bottom plate 1 is provided with a limiting hole, and a clamping groove is arranged in the limiting hole of the bottom plate 1; the outer die groups 2 are mutually clamped and fixed in the limiting holes of the bottom plate 1; the inner module 3 is arranged inside the outer module 2 in a clamping manner; wherein:
the outer die set 2 comprises an outer die sleeve 21, a clamping spring 22, a clamping sheet 23, a clamping rope 24, a cylindrical sleeve 25, a clamping head 26 and an auxiliary spring 27; the outer die sleeve 21 is of a square structure, and the middle part of the outer die sleeve 21 is of a circular through hole structure; four fixing holes are uniformly formed in the outer wall of the upper end of the outer die sleeve 21, and rectangular limiting grooves are formed in the fixing holes; rectangular limiting holes are symmetrically formed in the outer wall of the upper end of the outer die sleeve 21; the outer die sleeve 21 is characterized in that the outer wall of the lower end of the outer die sleeve 21 is uniformly provided with a cylindrical sleeve 25, the inside of the cylindrical sleeve 25 is provided with a clamping joint 26 in a sliding fit mode, and the clamping joint 26 is connected with the inner wall of the cylindrical sleeve 25 through an auxiliary spring 27; the clamping sheets 23 are symmetrically arranged on the side wall of the outer die sleeve 21 in a sliding fit mode, and the clamping sheets 23 are connected with the inner wall of the outer die sleeve 21 through clamping springs 22; the clamping sheet 23 is connected with the clamping head 26 through a clamping rope 24 which is movably connected inside the outer die sleeve 21; changing the stacking height of the outer die sets 21 by stacking different numbers of outer die sets 2; further completing the shaping of the pulp molding plates with different depths, and when the adjacent external mold groups 2 need to be disassembled, manually pressing the clamping sheet 23 inwards by using a round iron column to drive the clamping joint 26 to be separated from the inner part of the fixing hole of the previous external mold sleeve 21; the operation is simple, convenient and fast.
The inner die set 3 comprises a top die block 31, a fixed spring 32, a U-shaped fixed hook 33, an inner magnetic force ring 34, a die sleeve unit 35, a top die unit 36 and an outer clamping die plate 37; the lower end of the top module 31 is provided with a circular hole, and the inner wall of the circular hole is provided with a clamping groove; the side wall of the upper end of the top module 31 is uniformly provided with U-shaped fixing hooks 33 in a sliding connection mode, and the U-shaped fixing hooks 33 are connected with the inner wall of the top module 31 through fixing springs 32; an annular groove is formed in the outer wall of the lower end of the top module 31, and an inner magnetic ring 34 is arranged in the annular groove; a plurality of die sleeve units 35 are arranged at the lower end of the top die block 31 in a clamping manner; the outer clamping templates 37 are uniformly arranged on the outer wall of the die sleeve unit 35, the outer clamping templates 37 are fixed through the top die unit 36, and the top die unit 36 is arranged on the outer wall of the die sleeve unit 35 at the lowest end of the top die block 31 in a clamping manner; the lower end of the outer clamping template 37 is provided with a through hole, and the outer wall of the through hole at the lower end of the outer clamping template 37 is fixed by a rubber plug; the rubber plug is arranged on the outer wall of the through hole at the lower end of the outer clamping template 37, so that external pulp can be prevented from flowing into the inner part of the paper pulp sealing device; the cleanness inside the inner module 3 is ensured.
The die sleeve unit 35 comprises a square die block 351, an actuating spring 352, an actuating clamping block 353, a clamping rope 354 and a pulling plate 355; the upper end of the square module 351 is of a circular structure, the lower end of the square module 351 is of a rectangular structure, a circular groove is formed in the lower end of the square module 351, and concave holes are uniformly formed in the inner wall of the circular groove along the circumferential direction of the circular groove; the upper end of the square module 351 is uniformly provided with executing fixture blocks 353 in a sliding fit manner along the circumferential direction of the square module, and the executing fixture blocks 353 are connected with the inner wall of the square module 351 through executing springs 352; the clamping rope 354 is of a multi-end structure, the ends of the clamping rope 354 are respectively connected to the inner wall of the execution clamping block 353, the other end of the clamping rope 354 is located in a groove at the lower end of the square module 351, and one end of the clamping rope 354 is connected with the pull plate 355; a suitable number of die case units 35 are connected in series according to the depth of the pulp molding board to be manufactured; in the process of connecting the die sleeve units 35 in series, when the two die sleeve units 35 need to be separated, the execution fixture block 353 is retracted into the square module 351 by pulling the pull plate 355 under the action of the fixture rope 354; then the two die sleeve units 35 are separated by manual pulling; the arranged die sleeve unit 35 is convenient for molding the paper pulp molding plates with different depths, so that the waste of a large number of existing dies with different models is avoided; and resources are saved.
The top die unit 36 comprises a clamping module 361, a limiting clamping block 362, an adjusting spring 363, a string pulling rope 364, a pressing clamping plate 365 and a pressing spring 366; the lower end of the clamping module 361 is of a spherical structure; the upper end of the clamping module 361 is provided with a limiting clamping block 362 in a sliding fit manner, and the limiting clamping block 362 is connected with the inner wall of the clamping module 361 through an adjusting spring 363; a string pulling rope 364 is arranged inside the clamping module 361 in a sliding fit mode, and the other end of the string pulling rope 364 is connected to the limiting fixture block 362 respectively; the lower end of the string pulling rope 364 is connected to the pressing clamp plate 365, the pressing clamp plate 365 is arranged at the lower end of the clamping module 361 in a sliding fit manner, and the pressing clamp plate 365 is connected with the inner wall of the lower end of the clamping module 361 through the pressing spring 366; clamping the clamping module 361 into the circular groove of the square module 351, fixing the clamping module by the limiting fixture block 362, and when the top die unit 36 needs to be disassembled; pulling out the rubber plug of the through hole at the lower end of the outer clamping template 37, and pressing the clamping plate 365 by adopting a round iron column to extrude inwards so that the limiting clamping block 362 is separated from the inside of the concave hole of the round groove in the square module 351; the top die unit 36 is manually removed; the formation of the pulp molding board can be facilitated by the portable and detachable top die unit 36 provided, and the square die is converted into the circular top structure by the top die unit 36, which is simple in structure and facilitates the conversion of the shape structure of the die.
In particular, when the present invention is used;
molding the board according to the injection molded pulp internal depth; the external mold sets 2 with proper number are connected in series, then the mold sleeve units 35 with certain number are connected in series, and the internal mold set 3 is sleeved inside the external mold set 2 and fixed on the outer wall of the upper end of the external mold set 2; then, filling pulp into the inner part along the gap between the outer die set 2 and the outer die set 2, cooling and forming the pulp, and then manually demoulding and taking out the formed pulp moulding plate.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.