CN213830138U

CN213830138U - Side direction advances gluey hot runner system

Info

Publication number: CN213830138U
Application number: CN202022898474.6U
Authority: CN
Inventors: 赖文斌
Original assignee: Shenzhen Yatai Weiye Technology Co ltd
Current assignee: Shenzhen Yatai Weiye Technology Co ltd
Priority date: 2020-12-03
Filing date: 2020-12-03
Publication date: 2021-07-30
Anticipated expiration: 2030-12-03

Abstract

The utility model discloses a lateral glue inlet hot runner system, which comprises a lateral fixing plate, a fixed mould runner plate, a middle supporting plate and a fixed mould plate which are sequentially stacked from left to right, wherein a splitter plate is fixed in the fixed mould runner plate, a central glue injection nozzle is arranged at the center of the lateral fixing plate, a splitter plate glue inlet communicated with the central glue injection nozzle is arranged at the left center of the splitter plate, a plurality of splitter channels communicated with the splitter plate glue inlet are arranged in the splitter plate, a plurality of splitter plate glue outlets are arranged at the right side of the splitter plate, a plurality of hot nozzles are arranged in the middle supporting plate in a penetrating way, the hot nozzles and the splitter plate glue outlets are in one-to-one correspondence, a splitter connecting block is arranged at the outlet at the right end of the hot nozzles, two branch runners are arranged in the splitter connecting block, two terminal glue injection nozzles are arranged at the adjacent positions of the splitter connecting block, and are respectively communicated with the outlets of the two branch runners, a plurality of cavities are arranged in the fixed die plate. The utility model discloses can realize the side direction and advance to glue and improve production efficiency.

Description

Side direction advances gluey hot runner system

Technical Field

The utility model relates to a mould especially relates to a side direction advances gluey hot runner system.

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. Most of the existing injection molds are provided with glue feeding from the top, and the injection molding is realized by sequentially shunting and injecting glue from top to bottom, but for different processing occasions, a processing technology of laterally feeding glue is sometimes required to be configured, but the existing injection molds lack a laterally feeding function. In addition, in the existing injection mold, the thermal nozzles generally correspond to one cavity, and each thermal nozzle can only process a single workpiece in the processing process, so that the production efficiency is low, and the production requirement is difficult to meet.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model lies in, to prior art not enough, provide one kind can realize that the side direction advances gluey, can improve production efficiency's injection mold.

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

A lateral glue inlet hot runner system comprises a lateral fixing plate, a fixed die runner plate, a middle supporting plate and a fixed die plate which are sequentially stacked from left to right, wherein a splitter plate is fixed in the fixed die runner plate, a central glue injection nozzle is arranged at the center of the lateral fixing plate, a splitter plate glue inlet communicated with the central glue injection nozzle is arranged at the left center of the splitter plate, a plurality of splitter channels communicated with the splitter plate glue inlet are arranged in the splitter plate, a plurality of splitter plate glue outlets are arranged at the right side of the splitter plate, the splitter plate glue outlets are in one-to-one correspondence with the splitter channels and are communicated with each other, a plurality of hot nozzles are arranged in the middle supporting plate in a penetrating manner, the hot nozzles are in one-to-one correspondence with the splitter plate glue outlets, the left end inlets of the hot nozzles are communicated with the splitter plate glue outlets, and the right end outlets of the hot nozzles are provided with splitter connecting blocks, two branch flow passages are formed in the shunt connecting block, inlets of the two branch flow passages are communicated with outlets of the hot spray nozzles, two tail end glue injection nozzles are arranged at adjacent positions of the shunt connecting block and are respectively communicated with outlets of the two branch flow passages, a plurality of cavities are formed in the fixed die plate, and the tail end glue injection nozzles correspond to the cavities one to one and are communicated with each other.

Preferably, the left end of hot nozzle with flow distribution plate fixed connection, the cover is equipped with the adapter sleeve on the hot nozzle, the left end of adapter sleeve with the flow distribution plate closely laminates, and the binding face mutual seal of the two.

Preferably, a connecting pipe is arranged between the hot nozzle and the shunt connecting block, the left end and the right end of the connecting pipe are respectively inserted into the hot nozzle and the shunt connecting block, and the connecting pipe is communicated between the outlet of the hot nozzle and the inlet of the branch flow channel.

Preferably, the joints of the connecting pipes and the hot nozzles are sealed with each other, and the joints of the connecting pipes and the flow dividing connecting blocks are sealed with each other.

Preferably, the right end of the shunt connecting block is provided with two switching blocks, the two tail glue injection nozzles are symmetrically arranged at the upper end and the lower end of the two switching blocks, switching channels are formed in the switching blocks, and the switching channels are communicated between the branch channels and the tail glue injection nozzles.

Preferably, the joints of the switching block and the shunt connecting block are sealed with each other, and the joints of the switching block and the tail glue injection nozzle are sealed with each other.

The utility model discloses an among the glue hot runner system is advanced to side direction, side direction fixed plate, cover half runner plate, intermediate bottom plate and fixed die plate are range upon range of from left to right in proper order to constitute mould shell mechanism, utilize set up a plurality of reposition of redundant personnel passageways in the flow distribution plate and chew the melting plastic of pouring into to central injecting glue and shunt, and a plurality of hot nozzles of a plurality of horizontal settings of rethread are with the leading-in die cavity of melting plastic, have preferably adopted horizontal setting, the mode that the glue was advanced to side direction among the above-mentioned structure, have satisfied the technological requirement that the glue was advanced to side direction among the production process of moulding plastics betterly. Furthermore, the utility model discloses the right-hand member of hot nozzle sets up the reposition of redundant personnel connecting block, and every reposition of redundant personnel connecting block can correspond and connect two terminal injecting glue and chew, and then has realized that every hot nozzle can provide the melting plastic for two die cavities simultaneously, the injection-molded efficiency who promotes greatly.

Drawings

FIG. 1 is a cross-sectional view of a side glue inlet hot runner system;

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 lateral glue inlet hot runner system, which is shown in fig. 1 to 4 and comprises a lateral fixing plate 1, a fixed die runner plate 2, a middle support plate 3 and a fixed die plate 4 which are sequentially stacked from left to right, wherein a splitter plate 5 is fixed in the fixed die 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 channels 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 channels 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 two

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 III

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.

Example four

In practical application, an injection mold needs the glue injection nozzle to inject molten plastic into the cavity, when one hot nozzle corresponds to two glue injection nozzles, the molten plastic output by the hot nozzle needs to be shunted by 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.

To this end, the present embodiment provides a symmetrical pushing mechanism for a glue injection nozzle of an injection mold, which is shown in fig. 2, fig. 4, fig. 5 and fig. 6, and includes a shunt connection block 7 and two terminal glue injection nozzles 8, the right end of the shunt connection block 7 is provided with two transfer blocks 71, the two terminal glue injection nozzles 8 are symmetrically arranged at the upper and lower ends of the two transfer blocks 71, two branch flow channels 70 are arranged in the shunt connection block 7, a transfer flow channel 72 is arranged in the transfer block 71, the transfer flow channel 72 is communicated between the branch flow channel 70 and the terminal glue injection nozzle 8, the side portion of the transfer block 71 is formed with an inner inclined plane portion 710, the inner inclined plane portions 710 of the two transfer blocks 71 are arranged oppositely, a top block 711 is arranged between the two transfer blocks 71, the upper and lower sides of the top block 711 are formed with outer inclined plane portions 712, the outer inclined plane portions 712 and the inner inclined planes 710 are aligned one by one and abutted to 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.

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

1. The lateral glue inlet hot runner system is characterized by comprising a lateral fixing plate (1), a fixed die runner plate (2), a middle supporting plate (3) and a fixed die plate (4) which are sequentially stacked from left to right, wherein a splitter plate (5) is fixed in the fixed die runner plate (2), a central glue injection nozzle (10) is arranged at the center of the lateral fixing plate (1), splitter plate glue inlet openings (50) communicated with the central glue injection nozzle (10) are formed in the center of the left side of the splitter plate (5), a plurality of splitter passages (51) communicated with the splitter plate glue inlet openings (50) are formed in the splitter plate (5), a plurality of splitter plate glue outlet openings (52) are formed in the right side of the splitter plate (5), the splitter plate glue outlet openings (52) correspond to the splitter passages (51) one by one and are communicated with each other, a plurality of hot spray nozzles (6) are arranged in the middle supporting plate (3) in a penetrating manner, the hot nozzle (6) is in one-to-one correspondence with the glue outlets (52) of the splitter plate, the left end inlet of the hot nozzle (6) is communicated with the glue outlets (52) of the splitter plate, a splitter connecting block (7) is arranged at the right end outlet of the hot nozzle (6), two branch flow channels (70) are formed in the splitter connecting block (7), the inlets of the two branch flow channels (70) are communicated with the outlets 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.

2. The hot runner system with the lateral glue feeding function according to claim 1, wherein the left end of the hot nozzle (6) is fixedly connected with the splitter plate (5), a connecting sleeve (9) is sleeved on the hot nozzle (6), the left end of the connecting sleeve (9) is tightly attached to the splitter plate (5), and the attaching surfaces of the connecting sleeve and the splitter plate are sealed with each other.

3. The hot runner system with side glue feeding of claim 1, characterized in that a connecting pipe (11) is arranged between the hot nozzle (6) and the branch connecting block (7), the left and right ends of the connecting pipe (11) are respectively inserted into the hot nozzle (6) and the branch connecting block (7), and the connecting pipe (11) is communicated between the outlet of the hot nozzle (6) and the inlet of the branch flow channel (70).

4. The hot runner system with side glue feeding of claim 3, characterized in that the connection of the connecting pipe (11) and the hot nozzle (6) are sealed with each other, and the connection of the connecting pipe (11) and the branch connecting block (7) is sealed with each other.

5. The hot runner system with the lateral glue feeding function of claim 1, wherein two switching blocks (71) are arranged at the right end of the flow dividing connecting block (7), two tail glue injection nozzles (8) are symmetrically arranged at the upper end and the lower end of the two switching blocks (71), a switching flow channel (72) is arranged in each switching block (71), and each switching flow channel (72) is communicated between the corresponding branch flow channel (70) and the corresponding tail glue injection nozzle (8).

6. The hot runner system for feeding glue laterally as claimed in claim 5, wherein the junction of the transfer block (71) and the branch connecting block (7) is sealed with each other, and the junction of the transfer block (71) and the end injection nozzle (8) is sealed with each other.