CN214111286U - Die for producing motor cam - Google Patents

Abstract

The utility model belongs to the technical field of injection moulding's technique and specifically relates to a mould for producing motor cam is related to, its technical scheme main points are: the device comprises a movable die and a fixed die, wherein the fixed die is fixedly provided with a male die, a forming block is arranged in the male die, the movable die is fixedly provided with a female die which can be opened and closed with the male die, and a forming groove is arranged in the female die; when the male die and the female die are assembled, the forming block is in inserted fit with the forming groove to form a cavity matched with the shape of the workpiece, and the cavity is used for forming the supporting plate, the convex block, the raised head and the first through hole; the movable die also comprises a side core-pulling mechanism communicated with the cavity, and the side core-pulling mechanism is used for forming a slot and a second through hole in the convex block; and a pouring runner is arranged between the fixed die and the movable die, and the pouring runner is respectively communicated with the molding block, the molding groove and the outside of the fixed die. This application has the technological effect of shaping motor cam.

Description

Die for producing motor cam

Technical Field

The application relates to the technical field of injection molding, in particular to a mold for producing a motor cam.

Background

The die is a tool for forming a blank into a product with a specific shape and size under the action of external force. The method is widely applied to blanking, die forging, cold heading, extrusion, powder metallurgy part pressing, pressure casting and injection or injection molding processing of products such as engineering plastics, rubber, ceramics and the like. The mould has a specific contour or inner cavity shape, and the blank can be separated according to the contour shape by applying the contour shape with the cutting edge. The blank can obtain a corresponding three-dimensional shape by using the shape of the inner cavity. The mold generally comprises a movable mold and a fixed mold which can be combined or separated.

In the related art, a workpiece is called a motor cam. Referring to fig. 1, the motor cam includes a support plate 11 disposed in a cylindrical shape and a protrusion 12 integrally formed at one end of the support plate 11. Specifically, one side of the protrusion 12 facing the slot 111 is provided with a slot 121, and one side of the protrusion 12 facing away from the support plate 11 is integrally formed with a protruding head 122 in a cylindrical shape. A first through hole 123 and a second through hole 124 are respectively arranged on two adjacent side surfaces in the lug 12; the first through hole 123 penetrates through the bottom of the bump 12 and the opposite ends of the protrusion 122, and both the first through hole 123 and the second through hole 124 are communicated with the slot 121. Because the motor cam is a special-shaped body, a symmetrical plane is difficult to find, and a common lathe and a milling machine are difficult to machine.

There is therefore a need for a mould for producing motor cams.

SUMMERY OF THE UTILITY MODEL

In order to shape the motor cam, the application provides a mould for producing the motor cam.

The application provides a mould for producing motor cam, adopts following technical scheme:

a die for producing a motor cam comprises a movable die and a fixed die, wherein the fixed die is fixedly provided with a male die, a forming block is arranged in the male die, the movable die is fixedly provided with a female die capable of being opened and closed with the male die, and a forming groove is arranged in the female die; when the male die and the female die are matched, the forming block is in inserted fit with the forming groove to form a cavity matched with the shape of a workpiece, and the cavity is used for forming the supporting plate, the convex block, the raised head and the first through hole; the movable die also comprises a side core-pulling mechanism communicated with the cavity, and the side core-pulling mechanism is used for forming a groove and a second through hole in the convex block; and a pouring runner is arranged between the fixed die and the movable die, and the pouring runner is respectively communicated with the molding block, the molding groove and the outside of the fixed die.

By adopting the technical scheme, when a workpiece is required to be molded, the external equipment is utilized to pour the pouring runner, so that the molding raw material is injected into the molding block and the molding groove from the outside of the fixed die through the pouring runner, the cavity is utilized, and then the raw material is directly and integrally molded into the supporting plate, the convex block, the convex head and the first through hole in the cavity, the side core-pulling mechanism is utilized, the raw material is molded and grooved in the cavity and the second through hole, so that the workpiece is molded at one time, and the production efficiency of the workpiece is improved.

Preferably, the number of the forming blocks and the number of the forming grooves are a plurality, the forming blocks are respectively spliced and matched with the forming grooves to form a plurality of cavities, and the cavities are uniformly and symmetrically arranged.

Through adopting above-mentioned technical scheme, utilize a plurality of die cavity, and then can once only form a plurality of work piece, and then improve the production efficiency of work piece.

Preferably, the side core-pulling mechanism comprises a core-pulling block connected in the movable mold in a sliding manner and a forming convex block fixedly connected with the core-pulling block and communicated with the cavity, and the forming convex block is used for forming the slot and the second through hole; the side core-pulling mechanism further comprises a driving piece which is fixedly connected with the core-pulling block and used for driving the core-pulling block to slide.

By adopting the technical scheme, when the female die and the male die are matched, the driving piece is utilized, the core-pulling block slides in the movable die, the core-pulling block drives the forming lug to slide in the same direction, the forming lug slides and is inserted into the cavity, and the raw material is injected into the cavity to form the slot and the second through hole; when the work piece shaping, the driving piece drive is loosed core the piece and is slided in the reverse direction, and then looses core the piece and drive the shaping lug and take out from the type intracavity, and then the later stage work piece drawing of patterns of being convenient for.

Preferably, the male die is further provided with a second inserted bar penetrating through and protruding out of the forming block, and the second inserted bar is used for forming the first through hole; and when the movable die and the fixed die are matched, the second inserted bar penetrates through the molding groove and the molding lug.

Through adopting above-mentioned technical scheme, when needs shaping work piece, driving piece forerunner moves the core pulling piece and slides, and inserts the die cavity, and then the external equipment drive movable mould slides, and then the movable mould drives the die and the core pulling piece syntropy slides, and then first inserted bar runs through shaping groove and shaping lug simultaneously, and then the first through-hole of shaping.

Preferably, the driving member is a driving cylinder.

Through adopting above-mentioned technical scheme, utilize and drive actuating cylinder, and then can drive the core-pulling piece and slide in the movable mould and cooperate.

Preferably, the side mechanism of loosing core still includes the guide assembly of loosing core, the guide assembly of loosing core includes two fixed mounting loose core guide blocks in the movable mould, and two loose core guide blocks parallel, it all looses core guide block looks butt and slides and connect between two loose core guide blocks with two to loose core the guide block.

Through adopting above-mentioned technical scheme, when driving actuating cylinder drive core-pulling piece and sliding, utilize two parallel guide blocks of loosing core, and then the core-pulling piece slides along the length direction cooperation of two guide blocks of loosing core, utilizes the piece of loosing core simultaneously with two to support the piece looks butt, and then has reduced the in-process that the core-pulling piece is sliding, the condition emergence of skew appears.

Preferably, the number of the side core-pulling mechanisms is two, the two side core-pulling mechanisms are arranged oppositely, the number of the forming convex blocks in the two side core-pulling mechanisms is a plurality, and the plurality of forming convex blocks can be respectively communicated with the plurality of cavities and matched with the cavities in an inserting manner.

Through adopting above-mentioned technical scheme, utilize two sets of side mechanisms of loosing core, and then can the shaping a plurality of fluting and second through-hole simultaneously, and then improved the production efficiency of work piece.

Preferably, the moving die further comprises a pushing mechanism for pushing the workpiece out of the forming groove, and the pushing mechanism comprises a material pushing plate in sliding fit with the female die and a plurality of material pushing rods fixedly connected to the material pushing plate; the plurality of material pushing rods are communicated with the plurality of cavities and can be matched with the forming grooves in an inserting mode, and the material pushing plates are connected with external equipment.

Through adopting above-mentioned technical scheme, when accomplishing the work piece shaping in the die cavity, cover half and movable mould die sinking, and then the phase separation between die and the terrace die for the phase separation between shaping piece and the shaping groove, the staff starts external equipment, and then external equipment drive scraping wings is at the movable mould internal slipping, and then the scraping wings drives a plurality of scraping wings syntropy and slides, and then the scraping wings is pegged graft with the shaping groove and is cooperated, and then will be located the work piece release of shaping inslot, and then the work piece drops, the staff of being convenient for takes out the work piece.

Preferably, the pushing mechanism further comprises a pushing reset assembly, the pushing reset assembly comprises a pushing guide pillar fixedly connected with the pushing plate and a spring in plug fit with the pushing guide pillar, the pushing guide pillar can slide relative to the female die, and the spring is located between the female die and the pushing plate; when the spring is in a natural state, the material pushing rod is communicated with the cavity.

By adopting the technical scheme, when the female die and the male die are in a die sinking state, the material pushing plate drives the material pushing guide pillars to slide in the same direction, and then the material pushing guide pillars and the female die are matched in a sliding mode, so that the material pushing plate slides in the direction of the female die along the length direction of the material pushing guide pillars, meanwhile, the material pushing plate compresses the spring, the spring is in a natural state and is tightly abutted between the female die and the material pushing plate, until the material pushing rod pushes the workpiece out of the forming groove, the spring resets, the spring pushes the material pushing plate to slide reversely along the length direction of the guide pillars, and then the material pushing plate drives the material pushing rod to slide reversely, so that the material pushing rod is pulled out of the forming groove, and a new workpiece is formed at the later stage.

In summary, the present application includes at least one of the following beneficial technical effects:

1. the casting runner is cast by using external equipment, so that a molding raw material is injected into the molding block and the molding groove from the outside of the fixed die through the casting runner, the supporting plate, the convex block, the convex head and the first through hole are directly and integrally molded in the cavity by using the cavity, and the groove and the second through hole are molded in the cavity by using the side core-pulling mechanism, so that a workpiece is molded at one time, and the manufacturing cost of the die is reduced;

2. the core-pulling block slides in the movable die by using the driving piece, the core-pulling block drives the molding lug to slide in the same direction, the molding lug slides and is inserted into the cavity, and the raw material is injected into the cavity to mold the slot and the second through hole; when a workpiece is molded, the driving piece drives the core-pulling block to reversely slide, and then the core-pulling block drives the molding lug to be pulled out of the cavity, so that the workpiece can be conveniently demoulded at the later stage;

3. through cover half and movable mould die sinking, and then phase separation between die and the terrace die for phase separation between shaping piece and the shaping groove, the staff starts external equipment, and then external equipment drive scraping wings is in the movable mould sideslip, and then the scraping wings drives a plurality of scraping wings syntropy and slides, and then the scraping wings is pegged graft with the shaping groove and is cooperated, and then will be located the work piece release of shaping inslot, and then the work piece drops, the staff of being convenient for takes out the work piece.

Drawings

Fig. 1 is a schematic view of the overall structure of a motor cam (workpiece);

FIG. 2 is a schematic view of the general structure of a mold for producing a motor cam according to the present embodiment;

FIG. 3 is an exploded view of a part of the structure of a stationary mold in the present embodiment;

FIG. 4 is an enlarged view at A in FIG. 3;

FIG. 5 is an exploded view of a part of the structure of the movable mold in the present embodiment;

FIG. 6 is an exploded view of a part of the structure of the side core-pulling mechanism in the present embodiment;

FIG. 7 is an enlarged view at B in FIG. 6;

FIG. 8 is a partial sectional view showing the structure of the cavity and the pouring device in this embodiment;

FIG. 9 is an enlarged view at C in FIG. 7;

FIG. 10 is a partial sectional view of the pusher mechanism in this embodiment;

fig. 11 is a partial structural sectional view of the mold clamping guide apparatus in this embodiment.

In the figure, 1, a workpiece; 11. a support plate; 111. a card slot; 112. a bayonet; 113. a groove; 114. a first circular hole; 115. a second circular hole; 12. a bump; 121. grooving; 122. a raised head; 123. a first through hole; 124. a second through hole; 125. round corners; 13. a protrusion; 2. fixing a mold; 21. fixing a die fixing plate; 22. a, a plate; 221. a first accommodating groove; 23. a male die; 231. forming a block; 232. a first plunger; 233. a second plunger; 3. moving the mold; 31. a movable mold fixing plate; 32. b, plate; 321. a second accommodating groove; 322. a third accommodating groove; 33. a female die; 331. forming a groove; 332. a slot; 34. a side core-pulling mechanism; 341. a driving cylinder; 342. core extraction; 343. forming a bump; 344. a jack; 345. a core-pulling guide block; 346. a core-pulling limiting component; 3461. a side drawing plate; 3462. a limiting groove; 3463. a third plunger; 35. a material pushing mechanism; 351. a base plate; 352. a material pushing plate; 353. a material pushing rod; 354. a material pushing reset assembly; 355. a spring; 356. pushing a material guide pillar; 36. cushion blocks; 4. a pouring device; 41. a sprue bush; 42. pouring a runner; 421. a main flow channel; 422. a shunt channel; 4221. a first shunt passage; 4222. a second branch flow channel; 43. a gate; 5. a mold clamping guide device; 51. closing the die guide post; 52. a die assembly guide sleeve; 6. a mold cavity.

Detailed Description

The present application is described in further detail below with reference to figures 1-11.

The embodiment of the application discloses a mould for producing motor cam. Referring to fig. 1, there is a work 1 called a motor cam in the related art. The motor cam (hereinafter referred to as a workpiece 1) includes a support plate 11 disposed in a cylindrical shape, and a projection 12 and a protrusion 13 integrally formed at opposite ends of the support plate 11. Specifically, the protrusion 13 is disposed in a cylindrical shape, a cylindrical groove 113 is disposed at one end of the support plate 11 facing the protrusion 13, and a first circular hole 114 and a second circular hole 115 are disposed at a bottom of the groove 113. The first circular hole 114 penetrates through the protrusion 13 and the support plate 11 at the same time, and the first circular hole 114, the second circular hole 115 and the groove 113 are communicated with each other. The lateral wall of the support plate 11 is circumferentially provided with a bayonet 112 and a clamping groove 111 which are used for being abutted and matched with an external structure, and the bayonet 112 and the clamping groove 111 are arranged at intervals. Specifically, the bump 12 is a cuboid-like arrangement, and one end of the bump 12 departing from the support plate 11 is provided with two fillets 125. One side of the projection 12 is provided with a slot 121, and one end of the projection 12, which is away from the support plate 11, is integrally formed with a raised head 122 which is arranged in a cylindrical shape. A first through hole 123 and a second through hole 124 are respectively arranged on two adjacent side surfaces in the lug 12; the first through hole 123 penetrates through the bottom of the bump 12 and the protrusion 122, the second through hole 124 penetrates through the side of the bump 12, and both the first through hole 123 and the second through hole 124 are communicated with the slot 121. Preferably, in this embodiment, the motor cam is made of plastic.

Referring to fig. 1 and 2, a mold for producing a motor cam includes a fixed mold 2 and a movable mold 3 for opening and closing with the fixed mold 2. The fixed mold 2 and the movable mold 3 are both connected with an external device, preferably, in the embodiment, the external device is an injection machine, the fixed mold 2 is fixedly installed in the injection machine, and the movable mold 3 is movably installed in the injection machine. When the workpiece 1 needs to be molded, a worker starts an injection machine, the injection machine drives the movable mold 3 to slide and to be matched with the fixed mold 2, the injection machine enables a raw material for molding the workpiece 1 to flow to a position between the fixed mold 2 and the movable mold 3 through the fixed mold 2, and the raw material is cooled and molded; when the workpiece 1 needs to be taken out, the injection machine drives the movable die 3 to slide and open the die with the fixed die 2, so that the workpiece 1 is bonded in the movable die 3, and further, a worker can take out the workpiece 1.

Referring to fig. 1 and 3, in particular, the fixed mold 2 includes a fixed mold holding plate 21 for fixed connection with an injection machine, a male mold 23 for molding the workpiece 1, and an a plate 22 fixedly connected between the fixed mold holding plate 21 and the male mold 23. The fixed mold 2 and the movable mold 3 are arranged oppositely, and the fixed mold fixing plate 21, the A plate 22 and the male mold 23 are arranged in sequence in a direction towards the movable mold 3. Preferably, in the present embodiment, the fixed mold fixing plate 21, the a plate 22, and the punch 23 are each provided in a rectangular parallelepiped shape. One side of the fixed die fixing plate 21 is connected with the injection machine through bolts, and one side, away from the injection machine, of the fixed die fixing plate 21 is connected with one side face of the A plate 22 through bolts. A side surface of the a plate 22, which faces away from the fixed mold fixing plate 21, is provided with a first accommodating groove 221 for accommodating the male mold 23, the first accommodating groove 221 is located on the side surface of the a plate 22 and at the central position, one side of the male mold 23 is in insertion fit with the first accommodating groove 221, the male mold 23 is connected with the a plate 22 through a bolt, and the male mold 23 is fixedly mounted with the a plate 22. One side of the male mold 23 facing away from the first receiving groove 221 extends and protrudes in the direction outside the first receiving groove 221. One side of the male die 23, which is away from the first receiving groove 221, is provided with a plurality of forming blocks 231 for forming the workpiece 1, and the forming blocks 231 and the male die 23 are integrally formed. Preferably, in the present embodiment, the number of the forming blocks 231 is six, and the six forming blocks 231 are uniformly and symmetrically arranged with respect to the longitudinal direction of the punch 23.

Referring to fig. 3 and 4, the male mold 23 is further provided with a first insert rod 232 for molding the first round hole 114 in the support plate 11 and a second insert rod 233 for simultaneously molding the second round hole 115 in the support plate 11 and the first through hole 123 in the projection 12. The first plug-in rod 232 and the second plug-in rod 233 both penetrate through the male die 23 and are fixedly connected with the male die 23. Meanwhile, the first insertion rod 232 and the second insertion rod 233 also penetrate the molding block 231 and extend toward the outer direction of the molding block 231. Preferably, in the present embodiment, the number of the first insertion rods 232 and the second insertion rods 233 is six, and one first insertion rod 232 and one second insertion rod 233 penetrate through each forming block 231.

Referring to fig. 5, specifically, the movable mold 3 includes a movable mold fixing plate 31 for being fixedly installed in the injection molding machine, a cavity die 33 for molding the workpiece 1, and a B plate 32 fixedly connected between the movable mold fixing plate 31 and the cavity die 33. The movable mold fixing plate 31, the B plate 32, and the die 33 are arranged in this order in the direction of the fixed mold 2. Preferably, in the present embodiment, the movable mold fixing plate 31, the B plate 32, and the die 33 are each provided in a rectangular parallelepiped shape. One side of the movable mold fixing plate 31 is bolted into the injection machine, and the injection machine can drive the movable mold fixing plate 31 to slide. The side of the movable mold fixing plate 31 facing away from the injection machine is connected with the side of the B plate 32. The side of the B plate 32 away from the movable die fixing plate 31 is provided with a second receiving groove 321 for receiving the die 33. The second receiving groove 321 is located at the central position of the side surface of the B plate 32, the female die 33 is in insertion fit with the second receiving groove 321, and the female die 33 is fixed to the B plate 32 by bolts. The side of the concave die 33 away from the B plate 32 is provided with a plurality of forming grooves 331 and third insert rods 3463 which are inserted into the forming grooves 331, and preferably, in this embodiment, the number of the forming grooves 331 and the third insert rods 3463 is six. The six forming grooves 331 and the third insert bars 3463 are all arranged at regular intervals with respect to the length direction of the female die 33. The side of the female die 33 departing from the B plate 32 is opposite to the side of the male die 23 departing from the A plate 22, the six forming grooves 331 are communicated with the six forming blocks 231 and are opposite to each other, and the six forming grooves 331 are respectively in insertion fit with the six forming blocks 231. Referring to fig. 6 and 7, the forming groove 331 is simultaneously in insertion fit with the first insert rod 232 and the second insert rod 233, the first insert rod 232 and the third insert rod 3463, and a gap is formed between the male mold 23 and the female mold 33 to form a cavity.

Referring to fig. 5 and 6, the two opposite sides of the B plate 32 in the length direction are respectively provided with a third receiving groove 322, and the third receiving grooves 322 are communicated with the second receiving grooves 321. Specifically, the movable mold 3 further includes a side core-pulling mechanism 34 for forming the groove 121 and the second through hole 124 in the projection 343. Preferably, in the present embodiment, the number of the side core pulling mechanisms 34 is two, and the two sets of side core pulling mechanisms 34 are respectively located at two opposite side surfaces of the B plate 32 where the third receiving groove 322 is located.

Referring to fig. 6 and 7, specifically, the side core-pulling mechanism 34 includes a core-pulling block 342 slidably connected in the third receiving groove 322, a molding protrusion 343 fixedly connected to the core-pulling block 342 and capable of being in insertion fit with the molding groove 331, and a driving member movably connected to the core-pulling block 342 for slidably moving the core-pulling block 342. Preferably, in this embodiment, the driver may be configured to drive the cylinder 341. The driving cylinder 341 is installed at one side of the B plate 32, and an output shaft of the driving cylinder 341 is communicated with the third receiving groove 322 and is connected with the core pulling block 342. The longitudinal direction of the core piece 342, the longitudinal direction of the third receiving groove 322, and the longitudinal direction of the die 33 are parallel. One side of the core-pulling block 342 is welded and fixed with the output shaft of the driving cylinder 341, so that the driving cylinder 341 can drive the core-pulling block 342 to slide and match along the width direction of the third accommodating groove 322, and the other side of the core-pulling block 342 opposite to the width direction can be inserted and matched with the female die 33. The side of the female die 33 facing the core pulling block 342 is provided with a slot 332 for the core pulling block 342 to be inserted and matched. The molding protrusion 343 is located on a side of the core-pulling block 342 facing the female die 33, the molding protrusion 343 is integrally molded with the core-pulling block 342, the molding protrusion 343 is in insertion fit with the molding groove 331, and the molding protrusion 343 is used for molding the slot 121 and the second through hole 124 in the molding protrusion 343. Referring to fig. 5 and 6, preferably, in the present embodiment, the number of the molding protrusions 343 in each set of side core back mechanisms 34 is three, and the three molding protrusions 343 are respectively arranged at regular intervals along the length direction of the core back block 342. The molding protrusion 343 is provided with an insertion hole 344 through which the second insertion bar 233 passes through the molding protrusion 343.

Referring to fig. 8 and 9, when the fixed mold 2 and the movable mold 3 are matched, the female mold 33 and the male mold 23 are matched, the molding block 231 is in insertion fit with the molding groove 331, the first insertion rod 232 is in insertion fit with the third insertion rod 3463, the second insertion rod 233 penetrates through the insertion hole 344 (see fig. 7), the second insertion rod 233 penetrates through the molding projection 343, and at this time, a cavity 6 for molding the workpiece 1 is formed between the female mold 33 and the male mold 23, and the shape of the cavity 6 is matched with the shape of the workpiece 1.

When the workpiece 1 needs to be molded, a worker firstly starts the driving cylinder 341, and then the output shaft of the driving cylinder 341 moves towards the inner direction of the B plate 32, the output shaft drives the core-pulling block 342 to slide towards the second accommodating groove 321 along the width direction of the third accommodating groove 322 and to be in inserted fit with the slot 332, and then the core-pulling block 342 drives the molding convex block 343 to slide in the same direction, so that the molding convex block 343 is in inserted fit with the molding groove 331; the worker starts the injection machine again, the injection machine drives the movable mold fixing plate 31 to slide towards the fixed mold 2, the fixed mold fixing plate 21 drives the B plate 32, the female mold 33 and the side core-pulling mechanism 34 to slide in the same direction, the female mold 33 and the male mold 23 are matched, the molding groove 331 is simultaneously matched with the molding block 231 and the first inserted link 232 in an inserting manner, the molding lug 343 is matched with the second inserted link 233 in an inserting manner, and the cavity 6 for molding the workpiece 1 is formed inside the molding groove 331 and the molding block 231; the raw material is injected into the cavity 6 by an injection machine, and the raw material is molded in the cavity 6.

When the workpiece 1 needs to be taken out, a worker firstly starts the injection machine, then the injection machine drives the movable mold fixing plate 31 to move reversely, the movable mold fixing plate 31 drives the B plate 32 and the female mold 33 to slide in the same direction, then the female mold 33 and the male mold 23 are opened, then the molding groove 331 is separated from the molding block 231, the first insert rod 232 is separated from the molding groove 331, meanwhile, the second insert rod 233 is pulled out of the insertion hole 344, and then the second insert rod 233 is separated from the molding lug 343; the staff restarts and drives actuating cylinder 341, and then the output shaft that drives actuating cylinder 341 drives the inside direction of actuating cylinder 341 and removes, and then the output shaft drives core-pulling block 342 syntropy and takes out from in the slot 332, and then core-pulling block 342 drives shaping lug 343 syntropy and takes out from in the shaping groove 331, and then work piece 1 bonds in the shaping groove 331, is convenient for the staff to take out work piece 1.

Referring to fig. 6, in particular, the side core back mechanism 34 further includes a core back guide assembly for guiding the sliding direction of the core back block 342. Specifically, the core-pulling guide assembly includes two core-pulling guide blocks 345 respectively bolted in the third receiving groove 322. The two core-pulling guide blocks 345 are respectively located on two opposite side groove walls in the length direction of the third receiving groove 322. The length direction of the two core-pulling guide blocks 345 is parallel to the width direction of the third accommodating groove 322. Opposite sides of the core back block 342 are always abutted between the two core back guide blocks 345. When the driving cylinder 341 drives the core pulling block 342 to slide, the core pulling block 342 is connected between the two core pulling guide blocks 345 in a sliding manner along the length direction of the core pulling guide blocks 345, so that the sliding direction of the core pulling block 342 is guided.

Referring to fig. 6 and 7, in particular, the side core back mechanism 34 further includes a core back limiting assembly 346 for limiting the sliding distance of the core back block 342. Specifically, the core pulling limiting assembly 346 comprises a side pulling plate 3461 installed between the driving cylinder 341 and the core pulling block 342, and a limiting groove 3462 disposed on one side of the core pulling block 342 facing the side pulling plate 3461, wherein the side pulling plate 3461 and the limiting groove 3462 are in relative sliding fit. Preferably, in this embodiment, the side draw plate 3461 is disposed in a rectangular parallelepiped, one side of the side draw plate 3461 is bolted to one side of the B plate 32, and the other end of the side draw plate 3461 is fixedly connected to the driving cylinder 341. The output shaft of the driving cylinder 341 penetrates through the opposite sides of the side pulling plate 3461 and is welded and fixed with the core pulling block 342. The length of the limiting groove 3462 corresponds to the width of the side draw-out plate 3461, and the side draw-out plate 3461 can slide and fit with the limiting groove 3462 along the width direction of the limiting groove 3462 and abut against the limiting groove 3462. The third insert bar 3463 penetrates opposite sides of the B plate 32, and one end of the third insert bar 3463 penetrates the forming groove 331 and communicates with the first insert bar 232. When the female die 33 and the male die 23 are matched, one end of the forming lug 343, which faces away from the core block 342, abuts against the side wall of the third insert bar 3463.

When the driving cylinder 341 drives the core-pulling block 342 to be pulled out of the slot 332, the output shaft of the driving cylinder 341 drives the core-pulling block 342 to slide in the direction away from the slot 332, and then the limiting groove 3462 moves along with the core-pulling block 342 and is in sliding fit with the side core-pulling plate 3461 until the side core-pulling plate 3461 abuts against the bottom of the limiting groove 3462, and then the core-pulling block 342 stops moving, and further the moving distance of the core-pulling block 342 is limited.

When the driving cylinder 341 drives the core-pulling block 342 to be inserted into and matched with the slot 332, the core-pulling block 342 drives the molding lug 343 to slide in the same direction until the molding lug 343 abuts against the third insertion rod 3463, so that the molding lug 343 stops sliding, the core-pulling block 342 stops sliding, and the third insertion rod 3463 limits the sliding distance of the core-pulling block 342.

Referring to fig. 10, the movable mold 3 further includes a pushing mechanism 35 for pushing the molded workpiece 1 out of the molding groove 331, and a spacer 36 fixedly attached between the movable mold fixing plate 31 and the B plate 32. Preferably, in the present embodiment, the spacers 36 are rectangular parallelepiped, and the number of the spacers 36 is two. The two spacers 36 are bolted to the side of the B plate 32 facing the movable mold fixing plate 31, and the two spacers 36 are respectively located at opposite ends of the side surface of the B plate 32 in the longitudinal direction. The length direction of the spacer blocks 36 is parallel to the width direction of the side face of the B plate 32, and the two spacer blocks 36 are arranged oppositely.

Referring to fig. 10, in detail, the pushing mechanism 35 includes a backing plate 351 slidably connected between two cushion blocks 36, a pushing plate 352 fixedly connected to the backing plate 351, and a plurality of pushing rods 353 fixedly connected to the pushing plate 352 for pushing out the workpiece 1. The backing plate 351 and the material pushing plate 352 are both arranged in a cuboid shape, and the backing plate 351 is parallel to the movable mold fixing plate 31. One side of the backing plate 351 is movably abutted against one side, facing the cushion block 36, of the movable mold fixing plate 31, one side, facing the movable mold fixing plate 31, of the backing plate 351 is fixedly connected with the injection machine, and then the injection machine can drive the backing plate 351 to slide along the thickness direction of the cushion block 36. The material pushing plate 352 is parallel to the backing plate 351, one side of the material pushing plate 352 is fixedly connected with one side of the backing plate 351 departing from the movable die fixing plate 31 through bolts, and then the backing plate 351 can drive the material pushing plate 352 to slide in the same direction. Preferably, in this embodiment, the material pushing rods 353 are all disposed in a cylindrical shape, one end of the material pushing rod 353 is in insertion fit with the material pushing plate 352, and the material pushing rod 353 is in interference fit with the material pushing plate 352, so that the material pushing rod 353 is fixedly connected with the material pushing plate 352. One end of the material pushing rod 353, which is far away from the material pushing plate 352, is inserted and matched with the B plate 32 and the female die 33, one end of the material pushing rod 353, which is far away from the material pushing plate 352, is flush with the bottom of the forming groove 331, so that the material pushing rod 353 can be abutted against the workpiece 1, and the material pushing rod 353 and the B plate 32 can be in sliding fit.

When the forming of the workpiece 1 is finished, opening the die between the female die 33 and the male die 23, so that the workpiece 1 is adhered in the forming groove 331, and meanwhile, the workpiece 1 is abutted against the plurality of pushing rods 353; the staff starts the injection machine, and then injection machine promotes the backing plate 351 and slides to the direction of die 33 along the direction of height of cushion 36, and then backing plate 351 drives scraping wings 352 syntropy and slides, and then scraping wings 352 drives scraping wings 353 syntropy and slides, and then scraping wings 353 syntropy promotes work piece 1 for work piece 1 breaks away from in the shaping groove 331, and then work piece 1 can directly drop, and the staff of being convenient for takes out work piece 1.

When the workpiece 1 is completely pushed out, the backing plate 351 slides towards the direction of the movable die fixing plate 31, and then the backing plate 351 drives the material pushing plate 352 to slide towards the direction of the movable die fixing plate 31, and then the material pushing plate 352 drives the material pushing rod 353 to slide in the same direction, so that the material pushing rod 353 is abutted against the bottom of the forming groove 331, and a new workpiece 1 can be formed again.

Referring to fig. 10, in particular, the pushing mechanism 35 further includes a pushing reset assembly 354 disposed between the B plate 32 and the movable mold fixing plate 31. Specifically, the pusher reset assembly 354 includes a pusher guide post 356 and a spring 355. The pushing guide pillar 356 is arranged in a cylindrical shape, one end of the pushing guide pillar 356 is in insertion fit with the pushing plate 352, the pushing guide pillar 356 is in interference fit with the pushing plate 352, and the pushing guide pillar 356 is fixedly connected with the pushing plate 352; one end of the pushing guide pillar 356 is inserted into the B plate 32, and the pushing guide pillar 356 is slidably engaged with the B plate 32. The spring 355 is in sleeve fit with the pushing guide pillar 356, and opposite ends of the spring 355 abut against the B plate 32 and the movable mold fixing plate 31 respectively. When the spring 355 is in a natural state, the material pushing rod 353 is flush with the bottom of the forming groove 331, and the material pushing rod 353 is abutted against the workpiece 1.

When the workpiece 1 needs to be pushed out, the injection machine drives the backing plate 351 to slide towards the direction of the B plate 32, the backing plate 351 drives the material pushing plate 352 to slide in the same direction, the material pushing guide pillar 356 and the B plate slide relatively, the material pushing plate 352 drives the material pushing rod 353 to slide towards the direction of the forming groove 331 along the length direction of the material pushing guide pillar 356, and the material pushing guide pillar 356 is utilized to guide the sliding direction of the material pushing rod 353; the ejector plate 352 slides and presses the spring 355 such that the spring 355 is in a compressed state.

When a new workpiece 1 needs to be molded, the spring 355 is reset, and then the spring 355 pushes the material pushing plate 352 and the backing plate 351 to slide towards the direction of the movable mold fixing plate 31, and then the material pushing plate 352 drives the material pushing rod 353 to slide in the same direction until the backing plate 351 abuts against the movable mold fixing plate 31, so that the material pushing rod 353 is flush with the bottom of the molding groove 331 again.

Referring to fig. 8 and 9, the mold further includes a pouring device 4 provided in the stationary mold 2, the pouring device 4 being for pouring a raw material for molding the workpiece 1 into the cavity 6. Specifically, the pouring device 4 includes a sprue bush 41 penetrating through the fixed mold 2, and a pouring runner 42 communicating between the sprue bush 41 and the cavity 6 for allowing the raw material to flow into the cavity 6. The sprue bush 41 is long, one end of the sprue bush 41 is located on one side of the fixed mold fixing plate 21 facing the injection machine, and the other end of the sprue bush 41 sequentially penetrates through the fixed mold fixing plate 21, the A plate 22 and the male mold 23. When the male die 23 and the female die 33 are matched, one end of the sprue bush 41 departing from the fixed die fixing plate 21 is abutted against the female die 33. Specifically, the pouring runner 42 includes a main runner 421 and a branch runner 422. The main runner 421 is located within the sprue bushing 41, and the main runner 421 penetrates opposite ends of the sprue bushing 41 in the longitudinal direction. One end of the main channel 421 facing the fixed mold fixing plate 21 may communicate with a nozzle of an injection machine, and the other end of the main channel 421 communicates with the sub channel 422. The end of the main channel 421 facing away from the fixed mold fixing plate 21 is located at the center of the male mold 23. Specifically, the branch channels 422 include a first branch channel 4221 communicated with one end of the main channel 421 away from the fixed mold fixing plate 21, and a plurality of second branch channels 4222 communicated between the first branch channel 4221 and the cavity 6. The male die 23 and the female die 33 are provided with a first branch flow passage 4221 and a second branch flow passage 4222. When the male die 23 and the female die 33 are closed, the first branch runner 4221 and the second branch runner 4222 are in a closed state, and then the raw materials can flow to the cavity 6 through the branch runner 422; when the male die 23 and the female die 33 are opened, the first branch passage 4221 is separated from the second branch passage 4222 and is in an open state. The length direction of the first shunt passage 4221 is parallel to the length direction of the male die 23 or the female die 33. Opposite ends of the first branch flow passage 4221 in the length direction face opposite ends of the male mold 23 or the female mold 33 in the length direction, respectively. Preferably, in the present embodiment, the number of the second branch flow passages 4222 is six, and six second branch flow passages 4222 are respectively communicated with six cavities 6. One end of the second branch flow passage 4222 is communicated with the first branch flow passage 4221, and the other end of the second branch flow passage 4222 is communicated with the cavity 6. A gate 43 for the raw material to flow into the cavity 6 is provided between the second branch flow passage 4222 and the cavity 6, and preferably, in this embodiment, the gate 43 may be a submarine gate.

When the female die 33 and the male die 23 are matched, the first sub-runner 4221 and the second sub-runner 4222 are both in a closed state, so that the worker starts the injection machine, the nozzle of the injection machine is connected with the sprue bush 41, the nozzle sprays the raw material to the main runner 421, the raw material flows through the main runner 421, the first sub-runner 4221, the second sub-runner 4222 and the sprue 43 in sequence, and the raw material flows into the cavity 6 and forms the workpiece 1.

Referring to fig. 11, the mold further includes a mold clamping guide 5 for guiding a mold clamping direction of the movable mold 3 and the fixed mold 2. Preferably, in the present embodiment, the number of the mold clamping guides 5 is four, the four mold clamping guides 5 are located on the side of the two blocks 36 facing the B plate 32, and the four mold clamping guides 5 are respectively provided on the two blocks 36 at opposite ends in the longitudinal direction of the side surfaces. Specifically, the mold clamping guide device 5 includes a mold clamping guide post 51 and a mold clamping guide sleeve 52, the mold clamping guide sleeve 52 and the mold clamping guide post 51 can be in sliding fit, and the length directions of the mold clamping guide post 51 and the mold clamping guide sleeve 52 are parallel. The mold clamping guide post 51 is provided in a cylindrical shape, one end of the mold clamping guide post 51 is fixed by welding to the side of the spacer 36 facing the B plate 32, and the other end of the mold clamping guide post 51 penetrates through the opposite sides of the B plate 32 and is fitted to the a plate 22 in an insertion manner. One end of the mold clamping guide sleeve 52 is welded and fixed on one side of the fixed mold fixing plate 21 facing the A plate 22, and the other end of the mold clamping guide sleeve 52 penetrates through two opposite sides of the A plate 22 and is in sleeve fit with the mold clamping guide post 51.

When the movable mold 3 and the fixed mold 2 need to open and close the films, the worker starts the injection machine, then the injection machine drives the movable mold fixing plate 31 to slide, then the movable mold fixing plate 31 drives the cushion block 36 to slide in the same direction, and then the cushion block 36 drives the mold closing guide pillar 51 to slide in the same direction, so that the mold closing guide pillar 51 and the mold closing guide sleeve 52 are matched with each other in a sliding manner along the length direction of the mold closing guide pillar 51 or the mold closing guide sleeve 52, and meanwhile, the mold is opened and closed between the movable mold 3 and the fixed mold 2, and then the guide effect is realized on the mold opening and closing direction between the movable mold 3 and the fixed mold 2.

The implementation principle of the die for producing the motor cam is as follows:

when the workpiece 1 needs to be molded, a worker installs the movable mold 3 and the fixed mold 2 in the injection molding machine, and the worker starts the driving cylinder 341 first by using the side core-pulling mechanism 34, so that the molding bump 343 slides into the molding groove 331; the worker starts the injection machine again, the fixed die 2 and the movable die 3 are matched by using the die matching guide device 5, and then the male die 23 and the female die 33 are matched, so that the molding block 231 and the molding groove 331 are in insertion fit, and a cavity 6 for molding the workpiece 1 is formed; the pouring device 4 is utilized to enable the injection machine to inject raw materials into the cavity 6, and then the raw materials are cooled and formed in the cavity 6; the injection machine drives the movable mold 3 to slide by using the mold opening and closing guide device 5 again, so that the mold opening is carried out between the movable mold 3 and the fixed mold 2, and the workpiece 1 is bonded in the molding groove 331; by using the side core-pulling mechanism 34, the driving cylinder 341 drives the forming bump 343 to be pulled out of the forming groove 331; by using the pushing mechanism 35, the pushing rod 353 pushes the workpiece 1 out of the forming groove 331 and drops the workpiece 1, so that the worker can directly take out the workpiece 1.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims (9)

1. The utility model provides a mould for producing motor cam which characterized in that: the die comprises a movable die (3) and a fixed die (2), wherein a male die (23) is fixedly installed on the fixed die (2), a forming block (231) is arranged in the male die (23), a female die (33) capable of being opened and closed with the male die (23) is fixedly installed on the movable die (3), and a forming groove (331) is formed in the female die (33); when the male die (23) and the female die (33) are matched, the forming block (231) is in inserted fit with the forming groove (331) and forms a cavity (6) matched with the shape of the workpiece (1), and the cavity (6) is used for forming the support plate (11), the convex block (12), the raised head (122) and the first through hole (123); the movable die (3) further comprises a side core-pulling mechanism (34) communicated with the cavity (6), and the side core-pulling mechanism (34) is used for forming a groove (121) and a second through hole (124) in the convex block (343); a pouring runner (42) is arranged between the fixed die (2) and the movable die (3), and the pouring runner (42) is respectively communicated with the molding block (231), the molding groove (331) and the outside of the fixed die (2).

2. The mold for producing a motor cam according to claim 1, wherein: the number of the forming blocks (231) and the forming grooves (331) is a plurality of, the forming blocks (231) are respectively in plug-in fit with the forming grooves (331) to form a plurality of cavities (6), and the cavities (6) are uniformly and symmetrically arranged.

3. A mold for producing a motor cam according to claim 2, wherein: the side core-pulling mechanism (34) comprises a core-pulling block (342) connected in the movable die (3) in a sliding manner and a molding lug (343) fixedly connected with the core-pulling block (342) and communicated with the cavity (6), and the molding lug (343) is used for molding the slot (121) and the second through hole (124); the side core-pulling mechanism (34) also comprises a driving piece which is fixedly connected with the core-pulling block (342) and used for driving the core-pulling block (342) to slide.

4. A mold for producing a motor cam according to claim 3, wherein: the male die (23) is further provided with a second inserted rod (233) penetrating through and protruding out of the forming block (231), and the second inserted rod (233) is used for forming the first through hole (123); when the movable die (3) is matched with the fixed die (2), the second insert rod (233) penetrates through the molding groove (331) and the molding lug (343).

5. A mold for producing a motor cam according to claim 3, wherein: the driving piece is a driving cylinder (341).

6. A mold for producing a motor cam according to claim 3, wherein: the side mechanism of loosing core (34) is still including the guide subassembly of loosing core, the guide subassembly of loosing core includes two fixed mounting loose core guide blocks (345) in movable mould (3), and two loose core guide blocks (345) parallel, it all looses core guide blocks (342) with two loose core guide blocks (345) looks butt and slides and connect between two loose core guide blocks (345) to loose core.

7. A mold for producing a motor cam according to any one of claims 3 to 5, characterized in that: the number of the side core-pulling mechanisms (34) is two, the two groups of side core-pulling mechanisms (34) are arranged oppositely, the number of the forming convex blocks (343) in the two groups of side core-pulling mechanisms (34) is a plurality, and the forming convex blocks (343) can be communicated with the cavities (6) respectively and are matched with the cavities in an inserting mode.

8. The mold for producing a motor cam according to claim 1, wherein: the moving die (3) further comprises a material pushing mechanism (35) used for pushing the workpiece (1) out of the forming groove (331), and the material pushing mechanism (35) comprises a material pushing plate (352) in sliding fit with the female die (33) and a plurality of material pushing rods (353) fixedly connected to the material pushing plate (352); the plurality of material pushing rods (353) are communicated with the plurality of cavities (6) and can be in inserted fit with the forming grooves (331), and the material pushing plate (352) is connected with external equipment.

9. The mold for producing a motor cam according to claim 8, wherein: the pushing mechanism (35) further comprises a pushing resetting component (354), the pushing resetting component (354) comprises a pushing guide post (356) fixedly connected with the pushing plate (352) and a spring (355) in plug fit with the pushing guide post (356), the pushing guide post (356) can slide relative to the female die (33), and the spring (355) is located between the female die (33) and the pushing plate (352); when the spring (355) is in a natural state, the material pushing rod (353) is communicated with the cavity (6).

Images