CN216968497U - Gate valve injection mold - Google Patents

Abstract

The utility model discloses a gate valve injection mold, which relates to the technical field of gate valve processing equipment and comprises a lower mold, an upper mold, a first mold cavity, a second mold cavity, a first through groove, a second through groove, a connecting rod, an installation block, a limiting block, a flow passage, a feeding hole, an overflow groove, a cavity, a cutting knife, a telescopic rod, a sliding groove, a sliding plate, a push rod, a rotary table, a bidirectional screw rod and a trapezoidal block. According to the utility model, a small amount of overflowing raw materials are stored through the overflow groove, film connection between injection molding cavities is avoided, the working stability of the device is ensured, the cutting knife cuts and separates waste materials and products in the overflow groove, the waste materials and the products in the overflow groove do not need to be separated manually, the working effect of the device is ensured, the connecting rod is pushed to move away from the first through groove through the mutual approach of the two trapezoidal blocks, the products move along with the connecting rod, the product taking-out work is completed, and the working efficiency of the device is ensured.

Description

Gate valve injection mold

Technical Field

The utility model relates to the technical field of gate valve processing equipment, in particular to a gate valve injection mold.

Background

The gate valve is a shutter, the movement direction of the shutter is vertical to the fluid direction, and the gate valve can only be fully opened and fully closed and cannot be adjusted and throttled. The gate plate is divided into a rigid gate plate and an elastic gate plate according to the difference of the gate plate. When a gate valve is manufactured, injection molding is usually selected to perform the manufacturing operation. Injection molding, also known as injection molding, is a method of molding by injection and molding. Injection molding is a process in which a completely molten plastic material is stirred by a screw at a certain temperature, injected into a mold cavity at high pressure, and cooled to solidify to obtain a finished product. The method is suitable for mass production of parts with complex shapes, is one of important processing methods, and generally needs to use an injection mold to perform injection molding work on the gate valve.

The small gap easily appears between current gate valve injection mold goes up the mould and the lower mould, when carrying out injection moulding work to injection mold, has a small amount of material to flow out from the die cavity, leads to appearing the membrane connection between each die cavity, influences the working effect of device.

SUMMERY OF THE UTILITY MODEL

The present invention is directed to a gate valve injection mold, which solves the above problems of the prior art.

In order to solve the technical problems, the utility model provides the following technical scheme: the utility model provides a gate valve injection mold, includes lower mould and last mould, the injection moulding mechanism has been seted up at the lower mould top, the lower mould top in the injection moulding mechanism outside has seted up a plurality of overflow launder, go up the mould bottom seted up with overflow launder assorted cavity, the cavity inner wall is close to injection moulding mechanism one side is equipped with the telescopic link, telescopic link output shaft cover is equipped with the cutting knife, the cavity inner wall is kept away from cutting knife one side has seted up the spout, the matching of spout inner wall is equipped with sliding connection's slide, the slide pass through reset spring with the spout inner wall is connected, slide one end extend to inside the cavity and with the cavity phase-match, the slide top is equipped with the push rod of rotation connection, push rod one end with cutting knife outer wall rotates to be connected, the inside liftout mechanism that is equipped with of lower mould.

Further, the mechanism of moulding plastics includes the first die cavity of a plurality of, a plurality of first die cavity is evenly seted up in the lower mould top, go up the mould bottom seted up with first die cavity assorted second die cavity, the first logical groove of a plurality of has been seted up at the lower mould top, first logical groove is located first die cavity one side, go up the mould bottom seted up with first logical groove assorted second leads to the groove, the inside swing joint's that is equipped with of first die cavity connecting rod, the connecting rod both ends all extend to the inside of first logical groove, the inside bilateral symmetry of first die cavity is equipped with swing joint's installation piece, go up the mould bottom in installation piece one side is equipped with the stopper, it is equipped with feed mechanism to go up the mould top, forms the chamber of moulding plastics so that the work of moulding plastics.

Furthermore, feed mechanism includes the runner, the runner is seted up in go up the mould top, the runner bottom in a plurality of feed port has been seted up to second die cavity top, the feed port with second die cavity intercommunication is impressed the raw materials and is carried out work in the injection molding chamber.

Furthermore, the top of the sliding plate is provided with a ball bearing matched with the push rod, the inner wall of the cavity is connected with the cutting knife in a sliding mode, the ball bearing ensures the stability of the push rod during movement, and the cavity plays a role in guiding the cutting knife.

Further, liftout mechanism includes a plurality of carousel, the carousel rotate set up in the lower mould outer wall, the carousel is located first logical groove one side, first logical inslot wall is equipped with the two-way lead screw of rotation connection, two-way lead screw one end with carousel fixed connection, two-way lead screw outer wall bilateral symmetry cover is equipped with the trapezoidal piece of rotation connection, the trapezoidal piece with first logical inslot wall sliding connection, the trapezoidal piece is located the connecting rod both sides, after the processing work was accomplished, takes out the product through the connecting rod.

Further, first logical inslot wall be equipped with trapezoidal piece assorted slide rail, trapezoidal piece inside be equipped with two-way lead screw assorted screw-nut, the stability when trapezoidal piece motion has been guaranteed to the slide rail, drives trapezoidal piece through screw-nut and moves.

Compared with the prior art, the utility model has the following beneficial effects:

1. according to the utility model, through arranging the overflow groove, the cutting knife, the sliding plate and the push rod, the overflow groove stores a small amount of overflowing raw materials, so that membrane connection between injection molding cavities is avoided, the working stability of the device is ensured, the cutting knife is in contact with waste materials in the overflow groove, the waste materials and products in the overflow groove are cut and separated, the waste materials and the products in the overflow groove do not need to be manually separated, and the working effect of the device is ensured.

2. According to the utility model, the bidirectional screw rod and the trapezoidal blocks are arranged, the two trapezoidal blocks are close to each other, the inclined surfaces of the trapezoidal blocks are in contact with the connecting rod, so that the connecting rod is pushed to move away from the first through groove, the product moves along with the connecting rod, the product taking-out work is completed, and the working efficiency of the device is ensured.

Drawings

The accompanying drawings, which are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate embodiments of the utility model and together with the description serve to explain the principles of the utility model and not to limit the utility model. In the drawings:

FIG. 1 is a top view of the lower die of the present invention;

FIG. 2 is a bottom view of the upper die of the present invention;

FIG. 3 is a side sectional view of a cavity of the present invention;

FIG. 4 is a schematic structural view of an upper die of the present invention;

FIG. 5 is a side cross-sectional view of the trapezoidal block of the present invention;

in the figure: 1. a lower die; 2. an upper die; 3. a first mold cavity; 4. a second mold cavity; 5. a first through groove; 6. a second through groove; 7. A connecting rod; 8. mounting a block; 9. a limiting block; 10. a flow channel; 11. a feed port; 12. an overflow trough; 13. a cavity; 14. a cutting knife; 15. a telescopic rod; 16. a chute; 17. a slide plate; 18. a push rod; 19. a turntable; 20. a bidirectional screw rod; 21. a trapezoidal block.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-4, the present invention provides the following technical solutions: a gate valve injection mold comprises a lower mold 1 and an upper mold 2, wherein an injection molding mechanism is arranged at the top of the lower mold 1, the injection molding mechanism comprises a plurality of first mold cavities 3, the plurality of first mold cavities 3 are uniformly arranged at the top of the lower mold 1, a second mold cavity 4 matched with the first mold cavities 3 is arranged at the bottom of the upper mold 2, a plurality of first through grooves 5 are arranged at the top of the lower mold 1, the first through grooves 5 are positioned at one side of the first mold cavities 3, a second through groove 6 matched with the first through groove 5 is arranged at the bottom of the upper mold 2, a movably connected connecting rod 7 is arranged inside the first mold cavity 3, two ends of the connecting rod 7 extend to the inside of the first through grooves 5, movably connected mounting blocks 8 are symmetrically arranged at two sides inside the first mold cavity 3, and a limiting block 9 is arranged at one side of the mounting block 8 at the bottom of the upper mold 2, the top of the upper die 2 is provided with a feeding mechanism, the feeding mechanism comprises a runner 10, the runner 10 is arranged at the top of the upper die 2, the bottom of the runner 10 is provided with a plurality of feeding holes 11 above the second die cavity 4, the feeding holes 11 are communicated with the second die cavity 4, the top of the lower die 1 is provided with a plurality of overflow chutes 12 at the outer side of the injection mechanism, the bottom of the upper die 2 is provided with a cavity 13 matched with the overflow chutes 12, one side of the inner wall of the cavity 13 close to the injection mechanism is provided with an expansion link 15, an output shaft of the expansion link 15 is sleeved with a cutting knife 14, one side of the inner wall of the cavity 13 far away from the cutting knife 14 is provided with a sliding chute 16, the inner wall of the sliding chute 16 is matched with a sliding plate 17 in sliding connection, the sliding plate 17 is connected with the inner wall of the sliding chute 16 through a return spring, one end of the sliding plate 17 extends into the cavity 13 and is matched with the cavity 13, the top of the sliding plate 17 is provided with a push rod 18 which is rotatably connected, and one end of the push rod 18 is rotatably connected with the outer wall of the cutting knife 14.

The top of the sliding plate 17 is provided with a ball bearing matched with the push rod 18, the inner wall of the cavity 13 is in sliding connection with the cutting knife 14, rotation is replaced by the ball bearing, stability of the push rod 18 in rotation is guaranteed, the cavity 13 plays a role in guiding the cutting knife 14, and stability of the cutting knife 14 in movement is guaranteed.

The implementation mode is specifically as follows: when in use, through the arrangement of the overflow groove 12, the cutting knife 14, the sliding plate 17 and the push rod 18, during operation, the positions of the lower die 1 and the upper die 2 are aligned, so that the positions of the first die cavity 3 and the second die cavity 4 are aligned, the upper die 2 and the lower die 1 are driven to be close to each other through external force, the first die cavity 3 and the second die cavity 4 are close to each other, when the lower die 1 and the upper die 2 are attached, the first die cavity 3 and the second die cavity 4 are matched to form an injection molding cavity, the connecting rod 7 is placed in the injection molding cavity and matched with the injection molding cavity, so that molding work is performed on a product, the two mounting blocks 8 play a sealing role in the injection molding cavity, and simultaneously play a shaping role in the product, the limiting block 9 is positioned at one side of the mounting block 8 and limits the positions of the mounting blocks 8, so that the sealing work of the injection molding cavity is prevented from being influenced, the working stability of the device is ensured, and the two ends of the connecting rod 7 extend to the insides of the first through groove 5 and the second through groove 6, so as to be convenient for taking out a product, the working efficiency of the device is ensured, after the upper die 2 and the lower die 1 are jointed, raw materials are pressed into the flow channel 10 through an injection molding machine, then the raw materials enter the injection molding cavity through the feed hole 11, the injection molding cavity, the connecting rod 7 and the mounting block 8 are matched, the product is molded, the processing work of the product is finished, when a small gap is formed between the upper die 2 and the lower die 1, a small amount of raw materials flow out of the injection molding cavity and flow to the outer side of the first die cavity 3, and then flow into the overflow groove 12, the overflow groove 12 stores a small amount of raw materials which overflow, so that the film connection between the injection molding cavities is avoided, the working stability of the device is ensured, after the molding work of the product is finished, the telescopic rod 15 in the cavity 13 starts to work, the cutting knife 14 is driven to move downwards, and the push rod 18 is driven by the cutting knife 14 to swing, push rod 18 drives slide 17 and moves, slide 17 moves towards the inside of spout 16 thereupon, reset spring is compressed this moment, slide 17 no longer blocks up to cavity 13, cutting knife 14 continues downstream, the contact of the waste material of cutting knife 14 and the inside overflow launder 12, cut the separation work with the waste material and the product of overflow launder 12 inside, need not manually to separate the waste material and the product of overflow launder 12 inside, the working effect of device has been guaranteed, then telescopic link 15 drives cutting knife 14 and resumes the normal position, reset spring promotes slide 17 and resumes the normal position, slide 17 plays the effect of blockking to cavity 13 again, avoid influencing the injection molding work of device, after waste material and product separation, will go up mould 2 and lower mould 1 separation again, then take out the product, accomplish the processing work of product.

Referring to fig. 1 and 5, the present invention provides a technical solution: the utility model provides a gate valve injection mold, still including set up in 1 inside liftout mechanism of lower mould, liftout mechanism includes a plurality of carousel 19, carousel 19 rotate set up in 1 outer wall of lower mould, carousel 19 is located first logical groove 5 one side, first logical groove 5 inner wall is equipped with rotates two-way lead screw 20 of connecting, 20 one end of two-way lead screw with 19 fixed connection of carousel, 20 outer wall bilateral symmetry cover of two-way lead screw are equipped with rotates trapezoidal piece 21 of connecting, trapezoidal piece 21 with first logical groove 5 inner wall sliding connection, trapezoidal piece 21 is located connecting rod 7 both sides.

First logical groove 5 inner wall be equipped with trapezoidal piece 21 assorted slide rail, trapezoidal piece 21 inside be equipped with two-way lead screw 20 assorted screw-nut, the slide rail has restricted trapezoidal piece 21's direction of motion, stability when having guaranteed the motion of trapezoidal piece 21, and two-way lead screw 20 and screw-nut rotate relatively, drive screw-nut and move, and trapezoidal piece 21 moves thereupon.

The implementation mode is specifically as follows: during the use, through setting up two-way lead screw 20 and trapezoidal piece 21, after last mould 2 and lower mould 1 separation, need take out the product from first die cavity 3, the product is accomplished and is stereotyped the back, connecting rod 7 is located the inside of product, and the both ends of connecting rod 7 all are located the inside of first logical groove 5, manual rotation carousel 19, carousel 19 drives two-way lead screw 20 and rotates, two-way lead screw 20 drives trapezoidal piece 21 and moves, two trapezoidal pieces 21 are close to each other thereupon, the inclined plane and the connecting rod 7 of trapezoidal piece 21 contact, thereby promote connecting rod 7 and keep away from first logical groove 5 and move, the product moves along with connecting rod 7, thereby accomplish the work of taking out of product, the work efficiency of device has been guaranteed, after the product takes out, reverse rotation carousel 19 restores trapezoidal piece 21 to the normal position, so that next batch of product processing.

The working principle of the utility model is as follows:

referring to the attached drawings 1-4 of the specification, through arranging the overflow groove 12, the cutting knife 14, the sliding plate 17 and the push rod 18, the overflow groove 12 stores a small amount of overflowing raw materials, so that film connection between injection molding cavities is avoided, the working stability of the device is ensured, the cutting knife 14 is in contact with waste materials inside the overflow groove 12, waste materials and products inside the overflow groove 12 are cut and separated, the waste materials and the products inside the overflow groove 12 do not need to be manually separated, and the working effect of the device is ensured.

Further, referring to specification attached drawing 1 and fig. 5, through setting up two-way lead screw 20 and trapezoidal piece 21, two trapezoidal pieces 21 are close to each other, and the inclined plane and the connecting rod 7 of trapezoidal piece 21 contact to promote connecting rod 7 and keep away from first logical groove 5 and move, the product moves along with connecting rod 7, thereby accomplishes taking out work of product, has guaranteed the work efficiency of device.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described above, or equivalents may be substituted for elements thereof. 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.

Claims (6)

1. The utility model provides a gate valve injection mold, includes lower mould (1) and last mould (2), its characterized in that: the injection molding mechanism is arranged at the top of the lower die (1), a plurality of overflow grooves (12) are formed in the top of the lower die (1) and positioned outside the injection molding mechanism, a cavity (13) matched with the overflow grooves (12) is formed in the bottom of the upper die (2), a telescopic rod (15) is arranged on one side, close to the injection molding mechanism, of the inner wall of the cavity (13), a cutting knife (14) is sleeved on an output shaft of the telescopic rod (15), a sliding groove (16) is formed in one side, far away from the cutting knife (14), of the inner wall of the cavity (13), a sliding plate (17) in sliding connection is arranged on the inner wall of the sliding groove (16) in a matching mode, one end of the sliding plate (17) extends into the cavity (13) and is matched with the cavity (13), a push rod (18) in rotary connection is arranged at the top of the sliding plate (17), one end of the push rod (18) is rotatably connected with the outer wall of the cutting knife (14), and a material ejecting mechanism is arranged inside the lower die (1).

2. The gate valve injection mold of claim 1, wherein: the injection molding mechanism comprises a plurality of first mold cavities (3), the first mold cavities (3) are uniformly arranged at the top of the lower mold (1), a second mold cavity (4) matched with the first mold cavities (3) is arranged at the bottom of the upper mold (2), a plurality of first through grooves (5) are arranged at the top of the lower mold (1), the first through grooves (5) are positioned at one side of the first mold cavities (3), a second through groove (6) matched with the first through groove (5) is arranged at the bottom of the upper mold (2), a movably connected connecting rod (7) is arranged inside the first mold cavity (3), two ends of the connecting rod (7) extend into the first through groove (5), movably connected installation blocks (8) are symmetrically arranged at two sides inside the first mold cavity (3), a limiting block (9) is arranged at one side of the installation blocks (8) at the bottom of the upper mold (2), and a feeding mechanism is arranged at the top of the upper die (2).

3. The gate valve injection mold of claim 2, wherein: the feeding mechanism comprises a flow passage (10), the flow passage (10) is formed in the top of the upper die (2), a plurality of feeding holes (11) are formed in the bottom of the flow passage (10) above the second die cavity (4), and the feeding holes (11) are communicated with the second die cavity (4).

4. The gate valve injection mold of claim 1, wherein: the top of the sliding plate (17) is provided with a ball bearing matched with the push rod (18), and the inner wall of the cavity (13) is in sliding connection with the cutting knife (14).

5. The gate valve injection mold of claim 2, wherein: liftout mechanism includes a plurality of carousel (19), carousel (19) rotate set up in lower mould (1) outer wall, carousel (19) are located first logical groove (5) one side, first logical groove (5) inner wall is equipped with two-way lead screw (20) of rotation connection, two-way lead screw (20) one end with carousel (19) fixed connection, two-way lead screw (20) outer wall bilateral symmetry cover is equipped with trapezoidal piece (21) of rotation connection, trapezoidal piece (21) with first logical groove (5) inner wall sliding connection, trapezoidal piece (21) are located connecting rod (7) both sides.

6. The gate valve injection mold according to claim 5, wherein: the inner wall of the first through groove (5) is provided with a slide rail matched with the trapezoidal block (21), and a lead screw nut matched with the bidirectional lead screw (20) is arranged inside the trapezoidal block (21).

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