CN213830141U - Symmetrical jacking mechanism of glue injection nozzle of injection mold - Google Patents

Abstract

The utility model discloses a tight mechanism in symmetry top is chewed to injection mold's injecting glue, it is chewed including reposition of redundant personnel connecting block and two terminal injecting glues, the right-hand member of reposition of redundant personnel connecting block is equipped with two switching pieces, two terminal injecting glues the upper and lower both ends that the symmetry located two switching pieces, two branch runners have been seted up in the reposition of redundant personnel connecting block, the switching runner has been seted up in the switching piece, the switching runner communicates between branch runner and terminal injecting glue are chewed, the lateral part of switching piece is formed with interior inclined plane portion, and the relative setting of interior inclined plane portion of two switching pieces, be equipped with the kicking block between two switching pieces, the upper and lower both sides of kicking block are formed with outer inclined plane portion respectively, outer inclined plane portion and interior inclined plane portion align one by one and mutual butt, wear to be equipped with locking bolt in the kicking block, the right-hand member of kicking block is located to locking bolt's nut card, locking bolt screw fits the reposition of redundant personnel connecting block. The utility model discloses can guarantee that the injecting glue is chewed and divide and closely cooperate and improve the two junction sealing performance between the flow distribution piece.

Description

Symmetrical jacking mechanism of glue injection nozzle of injection mold

Technical Field

The utility model relates to a mould especially relates to a tight mechanism in symmetry top is chewed to injection mold's injecting glue.

Background

The plastic workpiece product generally needs to be processed and formed in an injection molding mode, and the injection mold is an essential core mechanism for completing injection molding. In practical application, the injection mold needs to inject molten plastic into the cavity by using the glue injection nozzle, when one hot nozzle corresponds to two glue injection nozzles, the molten plastic output by the hot nozzle needs to be shunted by using the shunt connecting block, in order to avoid glue leakage, the tail glue injection nozzle needs to be reliably connected and matched with the shunt block, but the glue injection nozzle is difficult to realize reliable connection with the shunt block due to the fact that the glue injection nozzle is small in size and difficult to fix. Therefore, how to ensure the close fit and mutual sealing between the glue injection nozzle and the shunting block is a technical problem to be solved urgently in the prior art.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model lies in, to prior art's not enough, provide one kind can guarantee that the injecting glue is chewed and is divided closely to cooperate between the flow block and improve the injecting glue of the two junction sealing performance and chew the tight mechanism in symmetry top.

In order to solve the technical problem, the utility model adopts the following technical scheme.

A symmetrical jacking mechanism of a glue injection nozzle of an injection mold comprises a shunt connecting block and two tail end glue injection nozzles, wherein two transfer blocks are arranged at the right end of the shunt connecting block, the two tail end glue injection nozzles are symmetrically arranged at the upper end and the lower end of the two transfer blocks, two branch flow channels are arranged in the shunt connecting block, transfer flow channels are arranged in the transfer blocks and are communicated between the branch flow channels and the tail end glue injection nozzles, inner inclined plane parts are formed on the lateral parts of the transfer blocks and are oppositely arranged, a top block is arranged between the two transfer blocks, outer inclined plane parts are respectively formed on the upper side and the lower side of the top block, the outer inclined plane parts and the inner inclined plane parts are aligned one by one and are mutually abutted, locking bolts penetrate through the top block, nuts of the locking bolts are clamped at the right end of the top block, and the locking bolts are screwed in the shunt connecting block, when the locking bolt is screwed, the locking bolt applies thrust to the top block, the outer inclined plane part is matched with the inner inclined plane part in a butting mode, the trend force of outward movement is provided for the two transfer blocks, and then the transfer blocks are driven to be tightly attached to the tail end glue injection nozzle.

Preferably, a plurality of transverse grooves are formed in the outer inclined plane part.

Preferably, an avoiding step opening is formed in the edge of the right end of the inner inclined plane part.

Preferably, a positioning pin is arranged between the switching block and the shunt connecting block, and two ends of the positioning pin are respectively inserted into the shunt connecting block and the switching block.

Preferably, 4 positioning pins are inserted between the switching block and the shunt connecting block.

In the symmetrical jacking mechanism of the glue injection nozzle of the injection mold, the right end of the shunting connecting block is provided with two transfer blocks, a top block is arranged between the two transfer blocks, the top block is connected with the shunting connecting block through the locking bolt, on the basis, the opposite sides of the two transfer blocks are respectively provided with an inner inclined plane part, the upper side and the lower side of the top block are respectively provided with an outer inclined plane part, when the locking bolt is screwed and tightened, the locking bolt drives the top block to be pushed leftwards, the outer inclined plane part is in butt fit with the inner inclined plane part, and thrust is applied to the inner inclined plane part, so that the two transfer blocks are outwards propped apart in the pushing process of the top block, and the glue injection nozzle can be ensured to be tightly matched with the terminal glue injection nozzle under the force application effect of the top block due to the symmetrical butt of the two terminal glue injection nozzles at the upper ends and the lower ends of the two transfer blocks, because of the continuous existence of internal stress, the adapter block and the tail end glue injection nozzle are kept in a sealing state, so that the connection relation between the tail end glue injection nozzle and the adapter block is tighter, the glue leakage condition can be effectively avoided, and the injection molding production requirement is better met.

Drawings

FIG. 1 is a cross-sectional view of a lateral glue injection mold;

FIG. 2 is a block diagram of a manifold, hot nozzle and manifold block;

FIG. 3 is an enlarged view of portion A of FIG. 2;

FIG. 4 is an enlarged view of portion B of FIG. 2;

FIG. 5 is a structural diagram of a shunt connecting block, a plurality of transfer blocks and a plurality of tail glue injection nozzles;

fig. 6 is a structural diagram of a transfer block, a top block and a tail glue injection nozzle.

Detailed Description

It should be noted that, the position words such as "upper, lower, left and right, front and back" that relate to in the utility model are only used for describing the position relation between the part more clearly, and are not used for limiting the utility model discloses an installation direction, consequently, the position change of making on the basis of the technical scheme of the utility model all should be when including within the scope of protection of the utility model.

The present invention will be described in more detail with reference to the accompanying drawings and examples.

Example one

The embodiment provides a symmetrical jacking mechanism of a glue injection nozzle of an injection mold, which is shown in fig. 2, 4, 5 and 6 and comprises a shunting connecting block 7 and two tail glue injection nozzles 8, wherein two transfer blocks 71 are arranged at the right end of the shunting connecting block 7, the two tail glue injection nozzles 8 are symmetrically arranged at the upper end and the lower end of the two transfer blocks 71, two branch flow channels 70 are arranged in the shunting connecting block 7, transfer flow channels 72 are arranged in the transfer blocks 71, the transfer flow channels 72 are communicated between the branch flow channels 70 and the tail glue injection nozzles 8, inner inclined plane parts 710 are formed at the side parts of the transfer blocks 71, the inner inclined plane parts 710 of the two transfer blocks 71 are oppositely arranged, a top block 711 is arranged between the two transfer blocks 71, outer inclined plane parts 712 are respectively formed at the upper side and the lower side of the top block 711, the outer inclined plane parts 712 are aligned with the inner inclined plane parts 710 and are abutted with each other, a locking bolt 720 penetrates through the top block 711, a nut of the locking bolt 720 is clamped at the right end of the top block 711, the locking bolt 720 is screwed in the shunt connecting block 7, when the locking bolt 720 is screwed, the locking bolt 720 applies thrust to the top block 711, and the outer inclined plane part 712 is in butt fit with the inner inclined plane part 710 to provide trend force for the two transfer blocks 71 to move outwards, so that the transfer blocks 71 are driven to be tightly attached to the tail glue injection nozzle 8.

In the above structure, two adapter blocks 71 are disposed at the right end of the shunt connecting block 7, a top block 711 is disposed between the two adapter blocks 71, the top block 711 and the shunt connecting block 7 are connected by the locking bolt 720, on this basis, inner inclined plane portions 710 are respectively formed at opposite sides of the two adapter blocks 71, outer inclined plane portions 712 are respectively formed at the upper and lower sides of the top block 711, when the locking bolt 720 is screwed and tightened, the locking bolt 720 drives the top block 711 to be pushed leftward, the outer inclined plane portions 712 are in abutting fit with the inner inclined plane portions 710, and thrust is applied to the inner inclined plane portions 710, so that the two adapter blocks 71 are pushed outward, and because the two terminal glue nozzles 8 are symmetrically abutted against the upper and lower ends of the two adapter blocks 71, the adapter blocks 71 can be ensured to be tightly fitted with the terminal glue nozzles 8 under the action of the top block 711, because of the continuous existence of internal stress, the adapter block 71 and the tail end glue injection nozzle 8 are kept in a sealing state, so that the connection relation between the tail end glue injection nozzle 8 and the adapter block 71 is tighter, the glue leakage can be effectively avoided, and the injection molding production requirement is better met.

Preferably, the outer bevel portion 712 is formed with a plurality of transverse grooves 713. One function of the plurality of transverse grooves 713 is to reduce heat loss, so that the heat of the transfer block 71 is sufficient; another function of the block is to reduce the contact area between the top block 711 and the transfer block 71, thereby ensuring that the top block 711 is reliably pushed leftward.

In order to facilitate the insertion of the top block 711 and avoid collision during the insertion process, in this embodiment, an avoiding step opening 714 is formed at the right end edge of the inner inclined plane portion 710.

In order to achieve the positioning function between the adapter block 71 and the shunt connection block 7, in this embodiment, a positioning pin 73 is disposed between the adapter block 71 and the shunt connection block 7, and two ends of the positioning pin 73 are respectively inserted into the shunt connection block 7 and the adapter block 71.

Preferably, 4 positioning pins 73 are inserted between the transfer block 71 and the shunt connecting block 7.

Example two

The embodiment provides a lateral glue inlet injection mold, which is shown in fig. 1 to 4 and comprises a lateral fixing plate 1, a fixed mold runner plate 2, a middle support plate 3 and a fixed mold plate 4 which are sequentially stacked from left to right, wherein a splitter plate 5 is fixed in the fixed mold runner plate 2, a central glue injection nozzle 10 is arranged at the center of the lateral fixing plate 1, a splitter plate glue inlet 50 communicated with the central glue injection nozzle 10 is arranged at the center of the left side of the splitter plate 5, a plurality of splitter passages 51 communicated with the splitter plate glue inlet 50 are arranged in the splitter plate 5, a plurality of splitter plate glue outlets 52 are arranged at the right side of the splitter plate 5, the splitter plate glue outlets 52 are in one-to-one correspondence with the splitter passages 51 and are communicated with each other, a plurality of hot nozzles 6 are arranged in the middle support plate 3 in a penetrating manner, and the hot nozzles 6 are in one-to-one correspondence with the splitter plate glue outlets 52, and the inlet at the left end of the hot nozzle 6 is communicated with the glue outlet 52 of the splitter plate, the outlet at the right end of the hot nozzle 6 is provided with a splitter connecting block 7, two branch flow channels 70 are arranged in the splitter connecting block 7, the inlets of the two branch flow channels 70 are communicated with the outlet of the hot nozzle 6, two tail glue injection nozzles 8 are arranged at the adjacent positions of the splitter connecting block 7, the two tail glue injection nozzles 8 are respectively communicated with the outlets of the two branch flow channels 70, a plurality of cavities 40 are arranged in the fixed die plate 4, and the tail glue injection nozzles 8 are in one-to-one correspondence with the cavities 40 and are communicated with each other.

In the structure, the lateral fixing plate 1, the fixed die runner plate 2, the intermediate support plate 3 and the fixed die plate 4 are sequentially stacked from left to right to form a die shell mechanism, a plurality of shunting channels 51 are formed in the shunting plate 5 to shunt molten plastic injected by the central glue injection nozzle 10, and then the molten plastic is introduced into the die cavity through a plurality of transversely arranged hot nozzles 6. Furthermore, the utility model discloses the right-hand member of hot nozzle 6 sets up reposition of redundant personnel connecting block 7, and every reposition of redundant personnel connecting block 7 can correspond and connect two terminal injecting glue and chew 8, and then has realized that every hot nozzle 6 can provide the melting plastic for two die cavities simultaneously, the injection-molded machining efficiency who promotes greatly. Furthermore, the utility model discloses can realize the side direction and advance gluey, stop the production of plastic mouth of a river material in the production process simultaneously, can directly save nearly 18% of plastic raw and other materials, help reducing injection moulding pressure moreover, guarantee that every die cavity walks to glue evenly, promote automated production performance greatly, compare traditional technology, the utility model discloses production efficiency can promote 25%.

In order to realize stable connection and sealed cooperation, in this embodiment, the left end of hot nozzle 6 with 5 fixed connection of flow distribution plate, the cover is equipped with adapter sleeve 9 on the hot nozzle 6, the left end of adapter sleeve 9 with flow distribution plate 5 closely laminates, and the binding face of the two is sealed each other.

In order to reliably connect the hot nozzle 6 and the shunt connection block 7, in this embodiment, a connection pipe 11 is disposed between the hot nozzle 6 and the shunt connection block 7, the left end and the right end of the connection pipe 11 are respectively inserted into the hot nozzle 6 and the shunt connection block 7, and the connection pipe 11 is communicated between the outlet of the hot nozzle 6 and the inlet of the branch flow channel 70.

Preferably, the connection of the connection pipe 11 and the hot nozzle 6 is sealed with each other, and the connection of the connection pipe 11 and the diverging connection block 7 is sealed with each other.

In this embodiment, an up-down flow distribution mode is preferably adopted at the tail end, specifically, two adapter blocks 71 are arranged at the right end of the flow distribution connecting block 7, the two tail end glue injection nozzles 8 are symmetrically arranged at the upper and lower ends of the two adapter blocks 71, an adapter flow channel 72 is arranged in the adapter block 71, and the adapter flow channel 72 is communicated between the branch flow channel 70 and the tail end glue injection nozzle 8.

Preferably, the joints of the transfer block 71 and the shunt connecting block 7 are sealed with each other, and the joints of the transfer block 71 and the tail glue injection nozzle 8 are sealed with each other.

EXAMPLE III

The embodiment provides a thermal nozzle rear end connecting mechanism, which is shown in fig. 2 and 3, and comprises a splitter plate 5 and a thermal nozzle 6, wherein a nozzle seat 60 is fixed at the left end of the thermal nozzle 6, the diameter of the nozzle seat 60 is larger than that of the thermal nozzle 6, the nozzle seat 60 is fixedly connected with the splitter plate 5, a plurality of splitter plate glue outlets 52 are formed at the right side of the splitter plate 5, a nozzle runner 61 is formed in the thermal nozzle 6, an in-seat runner 62 is formed in the nozzle seat 60, the splitter plate glue outlets 52, the in-seat runner 62 and the nozzle runner 61 are sequentially communicated, a nozzle partition ring 64 protruding outwards is formed on the outer side wall of the thermal nozzle 6, a reinforcing sleeve 63 is sleeved on the outer side of the nozzle partition ring 64 and is in sealing fit with the nozzle partition ring 64, the left end of the reinforcing sleeve 63 is arranged opposite to the nozzle seat 60, a tapered side wall 640 is formed at the left end of the nozzle partition ring 64, the reinforcing sleeve 63 is provided with a screw 65 in a penetrating manner and the screw 65 is screwed with the screw 65, the end part of the screw 65 is opposite to the tapered side wall 640, when the screw 65 is screwed inwards, the end part of the screw 65 abuts against the tapered side wall 640, and by means of the matching of the screw 65 and the tapered side wall 640, the reinforcing sleeve 63 is provided with a tendency of leftward displacement, so that the left end of the reinforcing sleeve 63 is driven to be tightly attached to the nozzle seat 60.

In the structure, nozzle seat 60 passes through the screw fixation in hot nozzle 6's left end, on this basis, the utility model discloses hot nozzle 6's the outside is cup jointed enhancement sleeve 63, makes simultaneously nozzle spacer ring 64 with enhancement sleeve 63 is sealed to be cooperated, because of nozzle spacer ring 64's left end is formed with taper lateral wall 640, so when wearing to locate enhancement sleeve 63's screw 65 is inwards screwed in, screw 65's tip with taper lateral wall 640 butt cooperation, simultaneously to thrust is applyed to taper lateral wall 640, borrows by the reaction force that taper lateral wall 640 provided, orders about enhancement sleeve 63 shifts left and closely laminate in nozzle seat 60. Based on the above principle, it is visible, the utility model discloses not only can guarantee nozzle seat 60 with hot nozzle 6 reliably connects, can also pass through strengthen the connection of the two further to strengthen sleeve pipe 63 to play sealed effect in the junction of the two, thereby prevent that the glue leakage condition from taking place, satisfied the production requirement betterly.

Furthermore, 3 screws 65 penetrate through the reinforcing sleeve 63, and the 3 screws 65 are uniformly distributed along the circumferential direction of the reinforcing sleeve 63.

Preferably, the screw 65 is a screw.

In order to facilitate the detachment and installation of the reinforcing sleeve 63, in the present embodiment, the nozzle spacer 64 has a trapezoidal cross section.

Example four

In practical application, the injection mold generally comprises a hot nozzle, and if the flow needs to be divided at the front-end outlet of the hot nozzle, a flow dividing connecting block needs to be arranged, and the front-end outlet of the hot nozzle is fixedly connected with the flow dividing connecting block and is in sealing fit with the flow dividing connecting block. Under the existing connection mode, after the front end outlet of the thermal nozzle is aligned with the inlet of the shunt connection block, the thermal nozzle can be fixedly connected through screws, but the connection mode cannot ensure that the thermal nozzle and the shunt connection block are directly and reliably sealed, so that the glue leakage condition is easy to occur in the injection molding process, and the production requirement cannot be met.

To this end, the present embodiment provides a thermal nozzle front end sealing connection mechanism, which is shown in fig. 2 and 4, and includes a thermal nozzle 6, a diversion connection block 7, and a hollow connection pipe 11, a diversion threaded port 700 is formed at the left end of the diversion connection block 7, the right end of the connection pipe 11 is disposed in the diversion threaded port 700 and is screwed with the diversion threaded port 700, a nozzle runner 61 is formed in the thermal nozzle 6, a nozzle threaded port 610 is formed at the right end opening of the nozzle runner 61, a tapered port 611 is formed at the right end of the nozzle threaded port 610, the left end opening diameter of the tapered port 611 is the same as the nozzle threaded port 610, the right end opening diameter of the tapered port 611 is larger than the left end opening diameter, the connection pipe 11 includes a tapered pipe body 110, a threaded pipe body 111 is formed at the left end of the tapered pipe body 110, the outer wall taper of the tapered pipe body 110 is the same as the inner wall taper of the tapered port 611, the threaded tube 111 is screwed into the nozzle port 610, and the outer wall of the tapered tube 110 is tightly attached to the inner wall of the tapered port 611.

In the above structure, the right end of the connection pipe 11 is screwed into the split thread port 700 at the left end of the split connection block 7, so that the connection pipe 11 is tightly fitted to the split connection block 7, and the left end of the connection pipe 11 is provided with the cone-shaped pipe 110 and the thread pipe 111 in sequence, and in the process of screwing with the hot nozzle 6, the thread pipe 111 is aligned to the nozzle thread port 610, and at this time, the cone-shaped pipe 110 is located in the cone-shaped port 611, and in the process of screwing the thread pipe 111 into the nozzle thread port 610, the cone-shaped pipe 110 is gradually abutted against the cone-shaped port 611 until the sealing requirement is met, compared with the prior art, the present invention can not only realize the reliable connection between the connection pipe 11 and the hot nozzle 6, but also can be fitted with the cone-shaped port 611 through the cone-shaped pipe 110, the tightness of the joint of the hot nozzle and the hot nozzle is enhanced, and the sealing performance of the joint at the front end of the hot nozzle is greatly improved, so that the condition of glue leakage is avoided, and the production requirement is well met.

In this embodiment, the side of the connection pipe 11 is formed with an annular shoulder 112 protruding outward, and the annular shoulder 112 is located between the hot nozzle 6 and the diverging connection block 7. In order to apply torque to the connection tube 11, a wrench position may be provided on the annular shoulder 112, or the annular shoulder 112 may be directly provided with a hexagonal nut structure so as to be matched with a wrench.

In the process of inserting the connection pipe 11 into the tapered opening 611 and the nozzle threaded opening 610, in order to avoid collision between the corner between the tapered opening 611 and the nozzle threaded opening 610 and the connection pipe 11, the present embodiment preferably adopts a clearance structure, specifically: an annular clearance groove 113 is formed at the joint of the taper tube body 110 and the threaded tube body 111.

The above is only the embodiment of the present invention, and is not intended to limit the present invention, and all modifications, equivalent replacements or improvements made within the technical scope of the present invention should be included within the protection scope of the present invention.

Claims (5)

1. The symmetrical jacking mechanism for the glue injection nozzle of the injection mold is characterized by comprising a shunting connecting block (7) and two tail end glue injection nozzles (8), wherein two transfer blocks (71) are arranged at the right end of the shunting connecting block (7), the two tail end glue injection nozzles (8) are symmetrically arranged at the upper end and the lower end of each transfer block (71), two branch flow channels (70) are arranged in the shunting connecting block (7), transfer flow channels (72) are arranged in the transfer blocks (71), the transfer flow channels (72) are communicated between the branch flow channels (70) and the tail end glue injection nozzles (8), inner inclined plane parts (710) are formed at the side parts of the transfer blocks (71), the inner inclined plane parts (710) of the two transfer blocks (71) are oppositely arranged, a jacking block (711) is arranged between the two transfer blocks (71), and outer parts (712) are respectively formed at the upper side and the lower side of the jacking block (711), outer inclined plane portion (712) with interior inclined plane portion (710) are aligned one by one and are butt each other, wear to be equipped with locking bolt (720) in kicking block (711), the nut card of locking bolt (720) is located the right-hand member of kicking block (711), locking bolt (720) the screw-on shunt connecting block (7), twist when locking bolt (720), locking bolt (720) to kicking block (711) applys thrust, borrows by outer inclined plane portion (712) with the butt cooperation of interior inclined plane portion (710), provides the trend power of outside removal for two switching blocks (71), and then orders about switching block (71) with the terminal laminating of injecting glue is chewed (8).

2. The symmetrical pushing mechanism of the compound injection nozzle of the injection mold as claimed in claim 1, wherein the outer inclined surface portion (712) is provided with a plurality of transverse grooves (713).

3. The symmetrical pushing mechanism of the glue injection nozzle of the injection mold as claimed in claim 1, wherein an avoiding step opening (714) is formed at the edge of the right end of the inner inclined plane part (710).

4. The symmetrical pushing mechanism of the glue injection nozzle of the injection mold as claimed in claim 1, wherein a positioning pin (73) is arranged between the transfer block (71) and the shunt connecting block (7), and two ends of the positioning pin (73) are respectively inserted into the shunt connecting block (7) and the transfer block (71).

5. The symmetrical pushing mechanism of the compound injection nozzle of the injection mold as claimed in claim 4, wherein 4 positioning pins (73) are inserted between the switching block (71) and the shunt connecting block (7).

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