CN216230572U - Mould of automatic cut runner in mould - Google Patents

Abstract

The utility model provides a mold for automatically cutting a sprue in a mold. The mould for automatically cutting the sprue in the mould comprises a positioning box; the upper die is fixedly arranged at the bottom of the positioning box; the pouring gate is arranged at the top of the positioning box; the translation box is slidably mounted in the positioning box; the contact block is fixedly arranged on the outer wall of one side of the translation box, and one side of the contact block extends into the translation box; the two fixing columns are fixedly arranged on the inner wall of the bottom of the positioning box; the rotating sleeve is rotatably arranged on the two fixing columns; the threaded rod is installed on the inner wall of the rotating sleeve in a threaded mode. The mould for automatically cutting the sprue in the mould has the advantages of being convenient to operate, convenient to cut the sprue and capable of improving product quality.

Description

Mould of automatic cut runner in mould

Technical Field

The utility model relates to the technical field of mold pouring, in particular to a mold for automatically cutting a pouring gate in the mold.

Background

At present, a method of mold injection molding is mostly adopted when plastic parts are produced, after an upper mold and a lower mold are closed and closed, raw materials are injected into the mold through a pouring gate, and after the raw materials are cooled, the mold is opened to take out finished products.

However, in such a way, after the plastic part is produced, the stub bar is connected with the product through the gate, so that a worker needs to trim the gate after taking the mold, the labor intensity is high, and the gate is not attractive in trimming. The existing solution is to push a cutter out of a top plate to cut off a sprue during mold opening, and the two methods are to cut after mold opening, because the plastic is cooled at the moment, the cut sprue surface is not attractive, the product quality is not good, the sprue can be trimmed and leveled only by manual trimming for many times, the labor intensity is still high, and the labor cost is increased.

Therefore, it is necessary to provide a new mold with an automatic gate cutting function in the mold to solve the above technical problems.

SUMMERY OF THE UTILITY MODEL

The utility model solves the technical problem of providing the mould for automatically cutting the pouring gate in the mould, which is convenient to operate, conveniently cuts the pouring gate and improves the product quality.

In order to solve the technical problem, the utility model provides a mold for automatically cutting a sprue in a mold, which comprises: a positioning box; the upper die is fixedly arranged at the bottom of the positioning box; the pouring gate is arranged at the top of the positioning box; the translation box is slidably mounted in the positioning box; the contact block is fixedly arranged on the outer wall of one side of the translation box, and one side of the contact block extends into the translation box; the two fixing columns are fixedly arranged on the inner wall of the bottom of the positioning box; the rotating sleeve is rotatably arranged on the two fixing columns; the threaded rod is installed on the inner wall of the rotating sleeve in a threaded mode, two ends of the threaded rod extend out of the rotating sleeve, and one end of the threaded rod is fixedly connected with the outer wall of one side of the translation box; the motor is fixedly arranged on the outer wall of one side of the corresponding fixed column; the two gears are respectively fixedly sleeved on the rotating sleeve and the output shaft of the motor and are meshed with each other.

Preferably, an inner cavity is arranged on the outer wall of one side of the contact block positioned in the translation box, a pressing plate is arranged in the inner cavity in a sliding manner, one side of the pressure plate extends into the translation box, a tamping block is fixedly arranged at the bottom of the pressure plate, a through hole is arranged on the inner wall of the bottom of the inner cavity, the bottom of the tamping block extends into the through hole, an inner groove block is fixedly arranged on the outer wall of one side of the pressure plate, an electric telescopic rod is fixedly arranged on the inner wall of one side of the translation box, a connecting T plate is slidably arranged on the inner wall of the top and the inner wall of the bottom of the translation box, the outer wall of one side of the connecting T plate is fixedly connected with an output shaft of the electric telescopic rod, and an ejector rod is fixedly installed on the outer wall of the other side of the connecting T plate, and one end of the ejector rod extends into the inner groove block and is in sliding connection with the inner wall of the bottom of the inner groove block.

Preferably, the holding tank has been seted up on the inner wall of runner, the opening has been seted up on the inner wall of runner, one side of contact block extends to in the opening, open-ended top inner wall with the top inner wall of holding tank all rotates and installs the baffle.

Preferably, fixed mounting has two slide bars on the bottom inner wall of translation case, two the top of slide bar all runs through the clamp plate and with clamp plate sliding connection, two the equal fixed mounting in top of slide bar has the diaphragm, two all the cover is equipped with the spring on the slide bar, two the top of spring respectively with two the bottom fixed connection of diaphragm, two the bottom of spring all with the top fixed connection of clamp plate.

Preferably, the one end of ejector pin is gone up to rotate and is installed articulated slider, the bottom inner wall of interior groove piece is established to the inclined plane, the chute has been seted up on the bottom inner wall of interior groove piece, articulated slider with the inner wall sliding connection of chute.

Preferably, equal fixed mounting has fixed ear on the both sides outer wall of location case, equal fixed mounting has the location ear, two on the both sides outer wall of last mould equal fixed mounting has the caulking groove, two on the bottom of fixed ear equal fixed mounting has the abaculus, two at the top of location ear the top of abaculus extends to two respectively in the caulking groove, two the draw-in groove has all been seted up on the one side outer wall that the abaculus was kept away from each other, two equal fixed mounting has the side case, two on the both sides outer wall of fixed ear equal fixed mounting has the fixed plate, two in the side case equal slidable mounting has the pull rod, two on the one side outer wall of fixed plate equal fixed mounting has the fixture block, two on one side outer wall of pull rod extends to two respectively in the draw-in groove, two equal fixed mounting has two arm-tie, two on the pull rod all seted up two logical grooves on one side outer wall of fixed plate.

Preferably, two equal slidable mounting has a riser on the inner wall of side case, two the one end of pull rod runs through two respectively the riser with respectively with two the riser rotates to be connected, two equal fixed mounting has a limiting plate in the side case, two all the cover is equipped with the extension spring on the pull rod, two the one end of extension spring respectively with two one side outer wall fixed connection of riser, two the other end of extension spring respectively with two one side outer wall fixed connection of limiting plate.

Compared with the related art, the mould for automatically cutting the sprue in the mould has the following beneficial effects:

the utility model provides a mold for automatically cutting a sprue in a mold, in the process of injection molding production of a plastic part, after liquid raw materials are cooled to a certain degree, a worker can break the raw materials in the sprue through a contact block, at the moment, the raw materials are viscous and can be easily separated, meanwhile, the residual raw materials in the sprue can be pressed into a mold cavity through a tamping block, and the remained sprue which needs manual treatment can be easily tamped and leveled by utilizing the plasticity of the viscous raw materials, so that the attractiveness of a product is improved, a large amount of manpower can be reduced, the production cost is reduced, the upper mold can be quickly replaced in the production process through a quick-disassembly installation mode, and the application range of the device is also improved.

Drawings

FIG. 1 is a schematic structural diagram of a preferred embodiment of an in-mold gate-cutting mold according to the present invention;

FIG. 2 is an enlarged view of portion A of FIG. 1;

FIG. 3 is an enlarged view of the portion B shown in FIG. 1;

FIG. 4 is an enlarged view of the portion C shown in FIG. 2;

fig. 5 is a side view of the fixing plate shown in fig. 1.

Reference numbers in the figures: 1. a positioning box; 2. fixing the ear; 3. an upper die; 4. positioning the ear; 5. a gate; 6. a translation box; 7. a contact block; 8. an inner cavity; 9. pressing a plate; 10. tamping blocks; 11. an inner groove block; 12. an electric telescopic rod; 13. connecting the T plates; 14. a top rod; 15. fixing a column; 16. rotating the sleeve; 17. a threaded rod; 18. a motor; 19. a gear; 20. caulking grooves; 21. an insert block; 22. a card slot; 23. a side box; 24. a fixing plate; 25. a pull rod; 26. a clamping block; 27. pulling a plate; 28. a through groove.

Detailed Description

The utility model is further described with reference to the following figures and embodiments.

Referring to fig. 1-5, fig. 1 is a schematic structural diagram of a mold for automatically cutting a gate in a mold according to a preferred embodiment of the present invention; FIG. 2 is an enlarged view of portion A of FIG. 1; FIG. 3 is an enlarged view of the portion B shown in FIG. 1; FIG. 4 is an enlarged view of the portion C shown in FIG. 2; fig. 5 is a side view of the fixing plate shown in fig. 1. The mould of automatic cutout runner in mould includes: a positioning box 1; the upper die 3 is fixedly arranged at the bottom of the positioning box 1; the pouring gate 5 is arranged at the top of the positioning box 1, a covering film is arranged on the inner wall of the pouring gate 5, the covering film is made of high-temperature-resistant materials and is a PEFT (positive electron transfer) high-temperature-resistant release film in the prior art, and the cross section of the pouring gate 5 is square; the translation box 6 is slidably mounted in the positioning box 1, a limiting rod is fixedly mounted on the inner wall of the top of the positioning box 1, and the translation box 6 is slidably mounted on the limiting rod through two sliding pieces; the contact block 7 is fixedly installed on the outer wall of one side of the translation box 6, one side of the contact block 7 extends into the translation box 6, and the outer wall of one side of the contact block 7 is an inclined surface, so that the viscous raw material can be conveniently cut; the two fixing columns 15 are fixedly arranged on the inner wall of the bottom of the positioning box 1; the rotating sleeve 16 is rotatably arranged on the two fixing columns 15; the threaded rod 17 is installed on the inner wall of the rotating sleeve 16 in a threaded mode, two ends of the threaded rod 17 extend out of the rotating sleeve 16, and one end of the threaded rod 17 is fixedly connected with the outer wall of one side of the translation box 6; the motor 18 is fixedly arranged on the outer wall of one side of the corresponding fixed column 15; two gears 19, two gears 19 are respectively fixedly sleeved on the rotating sleeve 16 and the output shaft of the motor 18, two gears 19 are mutually meshed, a rotating shaft is rotatably installed on the outer wall of one side, close to each other, of the two fixing columns 15, one end of the rotating shaft penetrates through the corresponding fixing column 15 and is fixedly connected with the output shaft of the motor 18, and the gear 19 located below is fixedly sleeved on the outer wall of the rotating shaft.

In order to compact the residual raw material in the gate 5 after cutting and flatten the stub bar, in this embodiment, preferably, the contact block 7 is located on the outer wall of one side in the translation box 6 and is provided with an inner cavity 8, the inner cavity 8 is slidably mounted with a pressing plate 9, one side of the pressing plate 9 extends into the translation box 6, the bottom of the pressing plate 9 is fixedly mounted with a tamping block 10, the inner wall of the bottom of the inner cavity 8 is provided with a through hole, the bottom of the tamping block 10 extends into the through hole, the outer wall of one side of the pressing plate 9 is fixedly mounted with an inner groove block 11, the inner wall of one side of the translation box 6 is fixedly mounted with an electric telescopic rod 12, the inside of the top of the translation box 6 and the inner wall of the bottom are slidably mounted with a linking T plate 13, the outer wall of one side of the linking T plate 13 is fixedly connected with the output shaft of the electric telescopic rod 12, and a top rod 14 is fixedly mounted on the outer wall of the other side of the connecting T plate 13, and one end of the top rod 14 extends into the inner groove block 11 and is in sliding connection with the inner wall of the bottom of the inner groove block 11.

In order to make conflict piece 7 can cut off the raw materials in runner 5 completely, in this embodiment, preferably, the holding tank has been seted up on the inner wall of runner 5, the opening has been seted up on the inner wall of runner 5, one side of conflict piece 7 extends to in the opening, open-ended top inner wall with the equal rotation of top inner wall of holding tank installs the baffle, height at two baffle levels and conflict piece 7 highly the same, consequently can conflict two baffles to the horizontality completely at conflict piece 7 lateral shifting's in-process to it completely seals runner 5 through square baffle.

In order to enable the tamping block 10 to always keep moving in the vertical direction, in this embodiment, it is preferable that two sliding rods are fixedly mounted on the inner wall of the bottom of the translation box 6, the top ends of the two sliding rods are both penetrated through the pressing plate 9 and are in sliding connection with the pressing plate 9, the top ends of the two sliding rods are both fixedly mounted with transverse plates, the two sliding rods are both sleeved with springs, the top ends of the springs are respectively and fixedly connected with the bottom of the transverse plates, the bottom ends of the springs are both in fixed connection with the top of the pressing plate 9, the two springs are stretched in the process that the pressing plate 9 moves downwards, and therefore when an output shaft of the driving electric telescopic rod 12 contracts, the two springs can assist the pressing plate 9 to move upwards, so that the initial state can be recovered conveniently.

In order to effectively resist the inner trough block 11 and lift the inner trough block 11 by the contraction of the electric telescopic rod 12, in this embodiment, it is preferable that one end of the ejector rod 14 is rotatably provided with a hinged sliding block, the inner wall of the bottom of the inner trough block 11 is an inclined plane, the inner wall of the bottom of the inner trough block 11 is provided with an inclined groove, the hinged sliding block is slidably connected with the inner wall of the inclined groove, and in the process of lifting the inner trough block 11, the electric telescopic rod 12 applies horizontal pulling force and upward pulling force of two springs, so that the inner trough block 11 can be easily lifted to the initial position.

In order to facilitate the rapid replacement of the upper die 3, thereby improving the production efficiency during the processing, in this embodiment, preferably, the outer walls on both sides of the positioning box 1 are both fixedly provided with a fixing lug 2, the outer walls on both sides of the upper die 3 are both fixedly provided with a positioning lug 4, the bottoms of both the fixing lugs 2 are both provided with an embedding slot 20, the tops of both the positioning lugs 4 are both fixedly provided with an embedding block 21, the tops of both the embedding blocks 21 respectively extend into both the embedding slots 20, the outer wall on one side, away from each other, of both the embedding blocks 21 is both provided with a clamping slot 22, the outer walls on both sides of both the fixing lugs 2 are both fixedly provided with a side box 23, both the side boxes 23 are both fixedly provided with a fixing plate 24, the outer wall on one side of both the fixing plates 24 is both slidably provided with a pull rod 25, one end of both the pull rods 25 is fixedly provided with a clamping block 26, the outer walls of one sides of the two clamping blocks 26 extend into the two clamping grooves 22 respectively, the clamping blocks 26 are cylindrical, the rotation of the pull rods 25 is not hindered after the matched clamping is realized, the clamping blocks 26 are driven to rotate together, the two pull plates 27 are fixedly mounted on the two pull rods 25, and the outer wall of one side of each of the two fixing plates 24 is provided with two through grooves 28.

In order to make fixture block 26 not receiving under the condition of external force influence, be located draw-in groove 22 all the time and carry out effectual card and hold, in this embodiment, preferably, two equal slidable mounting has a riser, two on the inner wall of side case 23 the one end of pull rod 25 runs through two respectively the riser rotate with two respectively the riser is connected, two equal fixed mounting has a limiting plate, two in the side case 23 all overlap on the pull rod 25 and be equipped with the extension spring, two the one end of extension spring respectively with two one side outer wall fixed connection of riser, two the other end of extension spring respectively with two one side outer wall fixed connection of limiting plate.

The working principle of the mould for automatically cutting the sprue in the mould provided by the utility model is as follows:

after the pouring gate 5 and the part connected with the mold are separated, firstly, a worker can wait for the temperature of the raw material to be slightly cooled after the pouring is finished, so that the raw material is not completely liquid but is thick enough, the worker can start the motor 18 only enough, the motor 18 starts the output shaft to rotate to drive the corresponding gear 19 to rotate, so as to drive the other gear 19 meshed with each other to rotate, and further drive the rotating sleeve 16 to rotate, when the rotating sleeve 16 rotates, the threaded rod 17 cannot rotate because the threaded rod 17 is limited by the translation box 6, so that the threaded rod 17 keeps horizontal transverse movement under the transmission of the threads, so as to push the translation box 6 and the collision block 7 to transversely move, the collision block 7 gradually collides with the corresponding baffle in the transverse moving process, so as to gradually rotate the baffle, and gradually jacks up a part of the covering film in the rotating process, finally, after the abutting block 7 completely enters the pouring gate 5, the abutting block 7 pushes the baffle to be in a horizontal state, meanwhile, raw materials in the pouring gate 5 are divided through the covering film, then, one end of the abutting block 7 enters the accommodating groove, after the abutting block 7 completely enters the accommodating groove, the tamping block 10 just moves into the pouring gate 5, then, a worker can start the electric telescopic rod 12, the electric telescopic rod 12 starts the output shaft to gradually extend to drive the connecting T plate 13 to transversely move, further drive the ejector rod 14 to transversely move, in the transverse moving process of the ejector rod 14, the hinged sliding block continuously pushes against the sliding groove, further, the inner groove block 11 gradually moves downwards, further, the pressing plate 9 is driven to move downwards, at the moment, the space of the pouring gate 5 at the top of the upper die 3 is filled through the tamping block 10, the raw materials remained in the pouring gate 5 are pressed into the die cavity, and therefore, the inner wall of the top of the upper die 3 is in a closed form, thereby achieving the effect of cutting off the gate 5 and pressing the remaining raw material into the cavity by the tamping block 10, thereby making the port flat.

Meanwhile, when the upper die 3 needs to be replaced, a worker can respectively and transversely pull the two pull rods 25, the two pull rods 25 transversely move to respectively drive the four pull plates 27 and the two vertical plates to transversely move, the two vertical plates continuously compress the two tension springs in the transverse moving process, and then, a pulling blocked state can occur in the continuous pulling process, at the moment, the four pull plates 27 respectively abut against the outer wall of one side of the two fixing plates 24, the worker only needs to rotate the two pull rods 25, the two pull rods 25 rotate to respectively drive the two pull plates 27 to rotate, when the two pull plates 27 respectively face the corresponding through grooves 28, at the moment, the worker can respectively pass the four pull plates 27 through the four through grooves 28 by pulling the two pull rods 25, after the four pull plates 27 completely pass through the four through grooves 28, the two clamping blocks 26 are just respectively moved out from the two clamping grooves 22, at the moment, the worker can rotate the two pull rods 25 again, make four arm-tie 27 not just to four logical grooves 28, loosen two pull rods 25 this moment, four arm-tie 27 can contradict respectively on the one side outer wall that two fixed plates 24 kept away from each other under the effect of extension spring, and the staff alright with regard to going up mould 3 at this moment and take off, and change.

Compared with the related art, the mould for automatically cutting the sprue in the mould has the following beneficial effects:

the utility model provides a mold for automatically cutting a pouring gate in a mold, in the process of injection molding production of a plastic part, after a liquid raw material is cooled to a certain degree, a worker can break the raw material in the pouring gate 5 through a contact block 7, at the moment, the raw material is viscous, not only can be easily separated, but also the residual raw material in the pouring gate 5 can be pressed into a mold cavity through a tamping block 10, and the remained pouring head needing manual treatment can be easily tamped and leveled by utilizing the plasticity of the viscous raw material, so that the attractiveness of a product is improved, a large amount of manpower can be reduced, the production cost is reduced, the upper mold 3 can be quickly replaced in the production process through a quick-disassembly installation mode, and the application range of the device is also improved.

The above description is only an embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications of equivalent structures and equivalent processes, which are made by using the contents of the present specification and the accompanying drawings, or directly or indirectly applied to other related technical fields, are included in the scope of the present invention.

Claims (7)

1. A mould for automatically cutting a pouring gate in a mould is characterized by comprising:

a positioning box;

the upper die is fixedly arranged at the bottom of the positioning box;

the pouring gate is arranged at the top of the positioning box;

the translation box is slidably mounted in the positioning box;

the contact block is fixedly arranged on the outer wall of one side of the translation box, and one side of the contact block extends into the translation box;

the two fixing columns are fixedly arranged on the inner wall of the bottom of the positioning box;

the rotating sleeve is rotatably arranged on the two fixing columns;

the threaded rod is installed on the inner wall of the rotating sleeve in a threaded mode, two ends of the threaded rod extend out of the rotating sleeve, and one end of the threaded rod is fixedly connected with the outer wall of one side of the translation box;

the motor is fixedly arranged on the outer wall of one side of the corresponding fixed column;

the two gears are respectively fixedly sleeved on the rotating sleeve and the output shaft of the motor and are meshed with each other.

2. The mold for automatically cutting the gate in the mold according to claim 1, wherein the outer wall of the contact block at one side in the translation box is provided with an inner cavity, a pressing plate is arranged in the inner cavity in a sliding manner, one side of the pressing plate extends into the translation box, a tamping block is fixedly arranged at the bottom of the pressing plate, a through hole is arranged on the inner wall of the bottom of the inner cavity, the bottom of the tamping block extends into the through hole, an inner groove block is fixedly arranged on the outer wall of one side of the pressure plate, an electric telescopic rod is fixedly arranged on the inner wall of one side of the translation box, a connecting T plate is slidably arranged on the inner wall of the top and the inner wall of the bottom of the translation box, the outer wall of one side of the connecting T plate is fixedly connected with an output shaft of the electric telescopic rod, and an ejector rod is fixedly installed on the outer wall of the other side of the connecting T plate, and one end of the ejector rod extends into the inner groove block and is in sliding connection with the inner wall of the bottom of the inner groove block.

3. The mold according to claim 1, wherein the inner wall of the gate has an accommodating groove, the inner wall of the gate has an opening, one side of the contact block extends into the opening, and both the inner wall of the top of the opening and the inner wall of the top of the accommodating groove are rotatably mounted with a baffle.

4. The mold for automatically cutting the gate in the mold according to claim 2, wherein two sliding rods are fixedly mounted on the inner wall of the bottom of the translation box, the top ends of the two sliding rods penetrate through the pressing plate and are slidably connected with the pressing plate, transverse plates are fixedly mounted on the top ends of the two sliding rods, springs are sleeved on the two sliding rods, the top ends of the two springs are respectively fixedly connected with the bottom of the two transverse plates, and the bottom ends of the two springs are respectively fixedly connected with the top of the pressing plate.

5. The mold according to claim 2, wherein a hinged sliding block is rotatably mounted on one end of the ejector rod, the inner bottom wall of the inner groove block is a slope, an inclined groove is formed on the inner bottom wall of the inner groove block, and the hinged sliding block is slidably connected with the inner wall of the inclined groove.

6. The mold for automatically cutting a gate in the mold according to claim 1, wherein the positioning box is fixedly provided with fixing lugs on the outer walls of both sides, the upper mold is fixedly provided with positioning lugs on the outer walls of both sides, the bottom of each of the fixing lugs is provided with a caulking groove, the top of each of the positioning lugs is fixedly provided with an insert, the top of each of the insert extends into the caulking groove, the outer wall of one side of each of the two insert away from each other is provided with a clamping groove, the outer walls of both sides of each of the two fixing lugs are fixedly provided with a side box, the inner side of each of the two side boxes is fixedly provided with a fixing plate, the outer wall of one side of each of the two fixing plates is slidably provided with a pull rod, one end of each of the two pull rods is fixedly provided with a clamping block, the outer wall of one side of each of the two clamping blocks extends into the two clamping grooves, the upper side of each of the two pull rods is fixedly provided with two pull plates, two through grooves are formed in the outer wall of one side of the fixing plate.

7. The mould of automatic cut runner in mould according to claim 6, characterized in that, two equal slidable mounting has the riser on the inner wall of side case, two the one end of pull rod runs through two respectively the riser rotate with two respectively the riser is connected, two equal fixed mounting has the limiting plate in the side case, two all the cover is equipped with the extension spring on the pull rod, two the one end of extension spring respectively with two one side outer wall fixed connection of riser, two the other end of extension spring respectively with two one side outer wall fixed connection of limiting plate.

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