CN219236012U - Integral type rubber tyer injection mold - Google Patents

Abstract

The utility model relates to an integral rubber wheel injection mold, which comprises: the lower die plate comprises a lower plate, lower column grooves formed in the top of the lower plate at intervals and lower cavities formed in the bottom of the lower column grooves at intervals; the upper template comprises an upper plate, an upper column groove, an upper cavity, a trough and a runner, wherein the upper plate is arranged above the lower plate in a lifting manner, the upper column groove is formed in the bottom of the upper plate at intervals, the upper cavity is formed in the bottom of the upper column groove at intervals, the trough is formed in the top of the upper plate, the runner is formed in the bottom of the trough and is communicated with the upper cavity, the upper column groove is matched with the lower column groove, and the upper cavity is matched with the lower cavity; and the pressing plate comprises a pressing plate which is arranged at the top of the upper plate in a lifting manner. According to the integrated rubber wheel injection mold disclosed by the utility model, the rubber wheels are integrally formed on the iron shaft, the rubber wheels are not required to be sleeved on the iron shaft one by one manually, the efficiency and the accuracy of the rubber wheels of the iron shaft sleeve are improved, the labor investment is saved, and the cost is saved.

Description

Integral type rubber tyer injection mold

Technical Field

The utility model belongs to the technical field of molds, and particularly relates to an integral rubber wheel injection mold.

Background

The injection mold is also called an injection molding mold, and is a tool for producing rubber products, namely a tool for endowing the rubber products with complete structures and precise dimensions, a plastic material which is completely melted by stirring through a screw rod at a certain temperature is injected into a mold cavity by high pressure, and is cooled and solidified to obtain a molded product, and for products such as rubber wheels, in order to be suitable for office automation occasions, a metal column is generally used for penetrating two or even more rubber wheels, and the molded product is generally applied to machines such as printers, fax machines or envelope machines.

In the prior art, an operator is required to manually sleeve the injection molded rubber wheels on the iron shaft one by one, or the rubber wheels are sleeved on the iron shaft by means of a jig, and the prior art has the following defects: the manual rubber tyer of cover of operative employee inefficiency can't guarantee the rubber tyer cover and establish the accuracy in position, still need the work of operation work for a long time incessantly moreover, needs a large amount of manual inputs, extravagant cost.

Disclosure of Invention

The utility model aims to overcome the defects of the prior art and provides an integral rubber wheel injection mold.

In order to achieve the above purpose, the utility model adopts the following technical scheme: an integral rubber tyer injection mold, it includes:

the lower die plate comprises a lower plate, lower column grooves formed in the top of the lower plate at intervals and lower cavities formed in the bottom of the lower column grooves at intervals;

the upper template comprises an upper plate, an upper column groove, an upper cavity, a trough and a runner, wherein the upper plate is arranged above the lower plate in a lifting manner, the upper column groove is formed in the bottom of the upper plate at intervals, the upper cavity is formed in the bottom of the upper column groove at intervals, the trough is formed in the top of the upper plate, the runner is formed in the bottom of the trough and is communicated with the upper cavity, the upper column groove is matched with the lower column groove, and the upper cavity is matched with the lower cavity;

the material pressing plate comprises a pressing plate which is arranged at the top of the upper plate in a lifting manner and a material plate which is fixed at the bottom of the pressing plate and matched with the trough.

Optimally, the device also comprises a lower guide post fixed on the top of the lower plate and used for positioning the upper plate, an upper guide post fixed on the top of the upper plate and used for positioning the pressing plate, and a jacking plate relatively fixed on two sides of the upper plate.

Optimally, the lower template further comprises a picking and placing groove formed in two sides of the lower column groove, a boss integrally connected to the top of the lower plate and located on two sides of the picking and placing groove, a limiting groove formed in the boss at intervals, and a clamping groove for connecting the limiting groove with the picking and placing groove, wherein the clamping groove is matched with the lower column groove.

Optimally, the upper template further comprises grooves formed in two sides of the upper column groove and inner fixing holes formed in two sides of the upper plate oppositely, and the grooves are matched with the bosses.

Optimally, the ejector plate comprises a top plate, an outer fixing hole penetrating through the top plate and an ejector column fixed on the outer side of the top plate, wherein the outer fixing hole is matched with the inner fixing hole.

Optimally, the lower template further comprises a first lower locating hole penetrating through the lower plate and a first lower limit table integrally connected to the bottom of the first lower locating hole, and the lower guide post is fixed on the first lower limit table.

Optimally, the upper template further comprises a second lower locating hole penetrating through the upper plate, a second lower limiting table integrally connected to the top of the second lower locating hole, a first upper limiting table penetrating through the first upper locating hole of the upper plate and integrally connected to the bottom of the first upper locating hole, the second lower locating hole is matched with the first lower locating hole, and the upper guide post is fixed on the first upper limiting table.

Optimally, the pressing plate further comprises a second upper locating hole penetrating through the pressing plate and a second upper limit table integrally connected to the top of the second upper locating hole, and the second upper locating hole is matched with the first upper locating hole.

Due to the application of the technical scheme, compared with the prior art, the utility model has the following advantages:

according to the integrated rubber wheel injection mold, an iron shaft is placed in a lower column groove of a lower plate, an upper plate is lowered to be pressed on the lower plate, the iron shaft penetrates through a gap between an upper cavity and a lower cavity, molten rubber particles are poured into the groove, rubber materials are pressed into a molding rubber wheel in the cavity through a runner by a material pressing plate, and the iron shaft is clamped in the limiting grooves by arranging two groups of limiting grooves, so that the iron shaft is prevented from axially moving during pouring, and the effect after pouring is improved; through setting up the runner of big-end-up, under the condition of the same pressure, can improve the speed that the sizing material got into in the upper die cavity, avoid the sizing material to cool off in advance in slow flow and cause the condition emergence that fills inadequately, rubber tyer integrated into one piece is on the iron shaft, need not the manual work again to cover the rubber tyer on the iron shaft one by one, improved the efficiency and the rate of accuracy of iron shaft sleeve rubber tyer, saved artificial input moreover, practice thrift the cost.

Drawings

FIG. 1 is a schematic diagram of the structure of the present utility model;

FIG. 2 is a schematic view of the lower die plate of the present utility model;

FIG. 3 is a top view of the lower plate of the present utility model;

FIG. 4 is an enlarged view of the present utility model at FIG. 2B;

FIG. 5 is a diagram showing the relationship between the lower template and the product according to the present utility model;

FIG. 6 is a schematic view of the structure of the upper mold plate of the present utility model;

FIG. 7 is a schematic view of the bottom of the upper die plate of the present utility model;

FIG. 8 is an enlarged view of FIG. 7A in accordance with the present utility model;

FIG. 9 is a front view of the cope match-plate pattern of the present utility model;

FIG. 10 is a cross-sectional view of an upper die plate of the present utility model;

FIG. 11 is a cross-sectional view of an upper die plate of the present utility model;

FIG. 12 is a schematic view of the structure of the pressing plate of the present utility model;

FIG. 13 is a cross-sectional view of a platen of the present utility model;

FIG. 14 is a schematic view of a tray according to the present utility model;

FIG. 15 is a schematic view of the structure of the ejector plate of the present utility model;

FIG. 16 is a cross-sectional view of an upper plate and a pressure plate of the present utility model;

FIG. 17 is a cross-sectional view of the lower and upper plates of the present utility model;

reference numerals illustrate:

1. a lower template; 101. a lower plate; 102. a first lower positioning hole; 103. a first lower limit table; 104. a lower cavity; 105. a lower column groove; 106. a taking and placing groove; 107. a boss; 108. a limit groove; 109. a clamping groove;

2. an upper template; 201. an upper plate; 202. a second lower positioning hole; 203. a second lower limit table; 204. a first upper positioning hole; 205. a first upper limit table; 206. a trough; 207. a flow passage; 208. an upper cavity; 209. an upper column groove; 210. a groove; 211. an inner fixing hole;

3. a pressing plate; 301. a pressing plate; 302. a second upper positioning hole; 303. a second upper limit table; 304. a material plate fixing groove; 305. a fixed hole in the material plate; 306. a material plate external fixing hole; 307. a material plate;

4. a liftout plate; 401. a top plate; 402. an outer fixing hole; 403. a top column;

5. a lower guide post; 501. a lower positioning column; 502. a lower limit column;

6. an upper guide post; 601. an upper positioning column; 602. and (5) an upper limit column.

Detailed Description

The utility model will be further described with reference to examples of embodiments shown in the drawings.

As shown in FIG. 1, the utility model is a schematic structure diagram, which is used for injecting a plurality of rubber wheels on an iron shaft at intervals to replace the problems of low efficiency and high cost caused by manual rubber wheel sleeving, and comprises a lower die plate 1, an upper die plate 2, a material pressing plate 3, a material ejecting plate 4, a lower guide post 5 and an upper guide post 6. And (3) placing the iron shaft into a cavity in the template during injection molding, then closing the mold to start pouring molten sizing material, and injecting the sizing wheel on the iron shaft after cooling, molding and maintaining pressure for a period of time, and opening the mold to take the material.

As shown in fig. 2 and 3, the lower die plate 1 is a schematic structural diagram, a lower die cavity is provided in the lower die plate 1, and the iron shaft is placed in the lower die cavity, and includes a lower plate 101, a first lower positioning hole 102, a first lower limiting table 103, a lower die cavity 104, a lower column groove 105, a picking and placing groove 106, a boss 107, a limiting groove 108 and a clamping groove 109. The lower plate 101 is a rectangular metal plate, a plurality of groups of lower column grooves 105 are formed in the lower plate 101 at intervals, the sections of the lower column grooves 105 are semicircular and used for bearing the lower half parts of the iron shafts, and the plurality of groups of lower column grooves 105 are formed and can be used for simultaneously carrying out injection molding on rubber wheels for the plurality of iron shafts so as to improve the processing efficiency. The lower die cavity 104 is formed at the top of the lower plate 101, the cross section of the lower die cavity 104 is semicircular, and is used for injection molding of the lower half part of the rubber wheel, as shown in fig. 3, the lower die cavities 104 are formed at intervals along the direction of the lower column groove 105, and the number of the lower die cavities 104 can be determined according to the number of actual iron sleeve rubber wheels.

The two groups of the taking and placing grooves 106 are formed in the top of the lower plate 101 at intervals, the two groups of the taking and placing grooves 106 are located on two sides of the lower column groove 105 and perpendicular to the placed iron shaft, after the die is assembled, the iron shaft is tightly pressed in the lower column groove 105, therefore, an operator can conveniently take and place the iron shaft by arranging the taking and placing grooves 106, the two groups of the bosses 107 are integrally connected to the top of the lower plate 101, and the two groups of the bosses 107 are located on two sides of the taking and placing grooves 106 and are parallel to the taking and placing grooves 106. The spacing grooves 108 are formed on the boss 107 at intervals, the spacing grooves 108 correspond to the positions of the lower column grooves 105, and the distance between the two sets of opposite spacing grooves 108 is equal to the length of the iron shaft. As shown in fig. 5, after the iron shaft is placed in the lower column groove 105, two ends of the iron shaft are respectively inserted into the limit grooves 108, two side edges of the iron shaft respectively support against the side walls of the limit grooves 108, and the iron shaft is limited through the limit grooves 108, so that left and right movement of the iron shaft during die assembly pouring is avoided, and the pouring effect is affected. As shown in fig. 4, the clamping groove 109 is used for connecting the limiting groove 108 and the picking and placing groove 106, and the clamping groove 109 is arranged to avoid interference of the iron shaft during placement.

As shown in fig. 6 and 7, the upper die plate 2 is configured as a schematic diagram of the upper die plate 2, and the upper die plate 2 is disposed above the lower die plate 1 in a liftable manner for die assembly forming, and includes an upper plate 201, a second lower positioning hole 202, a second lower limiting table 203, a first upper positioning hole 204, a first upper limiting table 205, a trough 206, a runner 207, an upper cavity 208, an upper column groove 209, a groove 210, and an inner fixing hole 211. The upper plate 201 is a rectangular metal plate, and is provided above the lower plate 101 so as to be movable up and down. The bottom of the upper plate 201 is provided with upper column grooves 209 at intervals, the cross section of the upper column grooves 209 is semicircular, the upper column grooves 209 are matched with the lower column grooves 105, and after die assembly, an iron shaft is pressed between the lower column grooves 105 and the upper column grooves 209. The upper die cavities 208 are formed at intervals at the bottom of the upper plate 201, the upper die cavities 208 are arranged at intervals along the direction of the upper column grooves 209, the cross section of each upper die cavity 208 is semicircular and matched with the corresponding lower die cavity 104, after die assembly, the upper die cavities 208 are buckled at the top of the corresponding lower die cavities 104, an iron shaft is positioned between the upper die cavities 208 and the corresponding lower die cavities 104, and external molten sizing material flows into the area between the upper die cavities 208 and the corresponding lower die cavities 104 to form a rubber wheel sleeved on the iron shaft.

The grooves 210 are two groups, are arranged at intervals at the bottom of the upper plate 201 and are positioned at two sides of the upper column groove 209, the grooves 210 are perpendicular to the placed iron shaft, the grooves 210 are matched with the bosses 107, and after the die is closed, the grooves 210 are buckled on the bosses 107 to further press the iron shaft. The top of upper plate 201 has seted up silo 206, runner 207 is offered in the silo 206 bottom and is linked to each other with last die cavity 208, in actual injection molding, pour molten sizing material into silo 206 in, then the compound die, under the effect of external pressure, with the sizing material in the silo 206 through runner 207 and impress in the region between upper die cavity 208 and the lower die cavity 104, as shown in fig. 8, the both sides of each group of upper die cavity 208 all link to each other with runner 207, pour from the both sides of upper die cavity 208, improve injection molding efficiency, while, can also guarantee the full degree of filling, avoid the uneven condition of unilateral filling feeding to take place. As shown in fig. 9, the cross section of the runner 207 is isosceles trapezoid, and the upper bottom of the isosceles trapezoid is larger than the lower bottom, and the glue material enters the small-area end from the large-area end, so that under the condition of the same pressure, the speed of the glue material entering the upper cavity 208 can be increased, and the situation that the glue material is not full due to early cooling in slow flow is avoided. The inner fixing holes 211 are formed at intervals on both sides of the upper plate 201, and the inner fixing holes 211 facilitate fixing the upper plate 401.

As shown in fig. 12, the structure of the pressing plate 3 is schematically shown, the pressing plate 3 is disposed on top of the upper plate 201 in a liftable manner, and the pressing plate 3 is used for pressing the glue material in the trough 206 into the runner 207, and includes a pressing plate 301, a second upper positioning hole 302, a second upper limiting table 303, a plate fixing slot 304, a plate inner fixing hole 305, a plate outer fixing hole 306 and a plate 307. A plate fixing groove 304 is provided at the bottom of the pressing plate 301 for fixing the plate 307. The plate outer fixing hole 306 penetrates through the plate fixing groove 304. The size of the material plate 307 is matched with the size of the material plate fixing groove 304, the material plate inner fixing hole 305 is formed in the material plate 307 and is the same as the size and the position of the material plate outer fixing hole 306, so that the material plate 307 is placed in the material plate fixing groove 304, and is fixed in the material plate inner fixing hole 305 through the material plate outer fixing hole 306 by using a fastening screw, and the fixation of the pressing plate 301 and the material plate 307 is realized. The top of the pressing plate 301 is connected with an air cylinder, and the pressing plate 301 is driven to descend under the action of the air cylinder, so that the material plate 307 is driven to be pressed into the material groove 206, and the sizing material in the material groove 206 is pressed into the flow channel 207.

As shown in fig. 15, the top plate 4 is schematically shown, and the top plate 4 is fixed on two sides of the upper plate 201 and used for driving the upper plate 201 to lift, and the top plate 4 includes a top plate 401, an outer fixing hole 402 and a top post 403. The outer fixing hole 402 is formed in the top plate 401 and is matched with the inner fixing hole 211, and when the top plate 401 and the upper plate 201 are actually fixed, a fastening screw passes through the outer fixing hole 402 to be fixed in the inner fixing hole 211, so that the top plate 401 and the upper plate 201 are fixed. The ejector column 403 is fixed on the outer side of the top plate 401, and the ejector column 403 is matched with an external ejection cylinder to drive the top plate 401 and the upper plate 201 to lift under the action of the cylinder.

As shown in fig. 2, the first lower positioning hole 102 penetrates the lower plate 101, and the first lower limiting table 103 is integrally connected to the bottom of the first lower positioning hole 102, and the diameter of the first lower positioning hole 102 is larger than the diameter of the first lower limiting table 103. As shown in fig. 10, the second lower positioning hole 202 penetrates through the upper plate 201, the second lower limiting table 203 is integrally connected to the top of the second lower positioning hole 202, the diameter of the second lower positioning hole 202 is larger than that of the second lower limiting table 203, and the diameter of the second lower positioning hole 202 is the same as that of the first lower positioning hole 102. The lower guide post 5 includes lower reference column 501 and lower spacing post 502, lower spacing post 502 body coupling is at the top of lower reference column 501, and the diameter of lower reference column 501 equals the diameter of first lower locating hole 102 (as shown in fig. 17, lower reference column 501 is fixed on first lower spacing platform 103, when upper plate 201 drops down and closes on lower plate 101 after, second lower locating hole 202 inserts on lower reference column 501, second lower spacing platform 203 inserts on lower spacing post 502, through the setting of lower guide post 5, the decline of upper plate 201 is led, and then the degree of accuracy after the improvement compound die).

As shown in fig. 11, the first upper positioning hole 204 penetrates through the upper plate 201, and the first upper limiting table 205 is integrally connected to the bottom of the first upper positioning hole 204, and the diameter of the first upper positioning hole 204 is larger than that of the first upper limiting table 205. As shown in fig. 13, the second upper positioning hole 302 penetrates the pressing plate 301, the second upper limiting table 303 is integrally connected to the top of the second upper positioning hole 302, the diameter of the second upper positioning hole 302 is larger than that of the second upper limiting table 303, and the diameter of the second upper positioning hole 302 is equal to that of the first upper positioning hole 204. The upper guide post 6 comprises an upper positioning post 601 and an upper limiting post 602, the upper limiting post 602 is integrally connected to the top of the upper positioning post 601, the diameter of the upper positioning post 601 is equal to that of the first upper positioning hole 204 (as shown in fig. 16, the upper positioning post 601 is fixed on the first upper limiting table 205, when the pressing plate 301 is pressed down and combined with the top of the upper plate 201, the second upper positioning hole 302 is inserted into the upper positioning post 601, the second upper limiting table 303 is inserted into the upper limiting post 602, and the pressing plate 301 is guided to descend by setting the upper guide post 6, so that the accuracy of pressing is improved).

The working principle of the utility model is as follows:

the operator lifts the material pressing plate 3 and the upper template 2, places the iron shaft in the lower column groove 105 of the lower plate 101, then drives the upper plate 201 to descend by the material ejecting plate 4, pours molten sizing material into the material groove 206, controls the pressing plate 301 to descend, presses the material plate 307 into the material groove 206, presses sizing material in the material groove 206 between the upper cavity 208 and the lower cavity 104 through the runner 207, and pours a circle of rubber wheel on the outer side of the iron shaft, and finally opens the mould to take off the product.

The above embodiments are provided to illustrate the technical concept and features of the present utility model and are intended to enable those skilled in the art to understand the content of the present utility model and implement the same, and are not intended to limit the scope of the present utility model. All equivalent changes or modifications made in accordance with the spirit of the present utility model should be construed to be included in the scope of the present utility model.

Claims (8)

1. The utility model provides an integral type rubber tyer injection mold which characterized in that, it includes:

the lower die plate (1), wherein the lower die plate (1) comprises a lower plate (101), lower column grooves (105) formed in the top of the lower plate (101) at intervals, and lower cavities (104) formed in the bottom of the lower column grooves (105) at intervals;

the upper template (2), the upper template (2) comprises an upper plate (201) which is arranged above the lower plate (101) in a lifting manner, an upper column groove (209) which is formed in the bottom of the upper plate (201) at intervals, an upper cavity (208) which is formed in the bottom of the upper column groove (209) at intervals, a trough (206) which is formed in the top of the upper plate (201), and a runner (207) which is formed in the bottom of the trough (206) and is communicated with the upper cavity (208), wherein the upper column groove (209) is matched with the lower column groove (105), and the upper cavity (208) is matched with the lower cavity (104);

the material pressing plate (3), the material pressing plate (3) comprises a pressing plate (301) which is arranged at the top of the upper plate (201) in a lifting mode and a material plate (307) which is fixed at the bottom of the pressing plate (301) and matched with the material groove (206).

2. The integrated rubber wheel injection mold of claim 1, wherein: the device also comprises a lower guide post (5) fixed on the top of the lower plate (101) and used for positioning the upper plate (201), an upper guide post (6) fixed on the top of the upper plate (201) and used for positioning the pressing plate (301), and a jacking plate (4) relatively fixed on two sides of the upper plate (201).

3. The integrated rubber wheel injection mold of claim 2, wherein: the lower template (1) further comprises a picking and placing groove (106) formed in two sides of the lower column groove (105), a boss (107) integrally connected to the top of the lower plate (101) and located on two sides of the picking and placing groove (106), a limiting groove (108) formed in the boss (107) at intervals, and a clamping groove (109) for connecting the limiting groove (108) with the picking and placing groove (106), wherein the clamping groove (109) is matched with the lower column groove (105).

4. An integral rubber tyre injection mould according to claim 3, characterized in that: the upper template (2) further comprises grooves (210) formed in two sides of the upper column groove (209) and inner fixing holes (211) formed in two sides of the upper plate (201) oppositely, and the grooves (210) are matched with the bosses (107).

5. The integrated rubber wheel injection mold of claim 4, wherein: the ejector plate (4) comprises a top plate (401), an outer fixing hole (402) penetrating through the top plate (401) and an ejector column (403) fixed on the outer side of the top plate (401), wherein the outer fixing hole (402) is matched with the inner fixing hole (211).

6. The integrated rubber wheel injection mold of claim 2, wherein: the lower template (1) further comprises a first lower locating hole (102) penetrating through the lower plate (101) and a first lower limit table (103) integrally connected to the bottom of the first lower locating hole (102), and the lower guide post (5) is fixed on the first lower limit table (103).

7. The integrated rubber wheel injection mold of claim 6, wherein: the upper template (2) further comprises a second lower locating hole (202) penetrating through the upper plate (201), a second lower limiting table (203) integrally connected to the top of the second lower locating hole (202), a first upper locating hole (204) penetrating through the upper plate (201) and a first upper limiting table (205) integrally connected to the bottom of the first upper locating hole (204), the second lower locating hole (202) is matched with the first lower locating hole (102), and the upper guide pillar (6) is fixed on the first upper limiting table (205).

8. The integrated rubber wheel injection mold of claim 7, wherein: the material pressing plate (3) further comprises a second upper locating hole (302) penetrating through the pressing plate (301) and a second upper limiting table (303) integrally connected to the top of the second upper locating hole (302), and the second upper locating hole (302) is matched with the first upper locating hole (204).

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