CN217777632U - Injection mold for encapsulating edges of openings of box body - Google Patents

Abstract

The utility model relates to a box opening edge rubber coating injection mold, include: the front die is provided with a feeding hole; the rear die and the front die are detachably connected, and the rear die and the front die are matched to form a cavity when being closed; the driving assembly is arranged on one side of the rear die and is used for driving the box body to be close to the cavity during die assembly or to be far away from the cavity during die opening; the pouring assembly is arranged on the front mold and is connected with the feeding hole, and the pouring assembly is used for guiding molten plastic to the cavity; a connection assembly disposed between the front mold and the rear mold. During die assembly, the driving assembly drives the box body to be close to the injection molding cavity to be matched to complete rubber coating injection molding, during die opening, the driving assembly drives the encapsulated box body to be far away from the encapsulated box body to be taken out conveniently, and through the arrangement of the driving assembly, the requirement that the die needs to accommodate the whole box body is avoided, and the die structure is simplified.

Description

Injection mold for encapsulating edges of openings of box body

Technical Field

The utility model relates to an injection mold especially relates to a box opening edge rubber coating injection mold.

Background

Present box edge rubber coating injection moulding technology often need consume great resource and human cost, because the box cavity, the volume is great, mould manufacturing and demolding are all more difficult, on the one hand traditional box edge injection mould of borduring all need design great die cavity in order to hold the box after again to its edge carry out the rubber coating and mould plastics, therefore the mould structure is huge, lead to the mould consumptive material great occupy more production space, on the other hand because the box cavity, put to a certain extent has been improved, the operation difficulty of getting the piece, consume man-hour, often even because the drawing of patterns is forced, cause the box to warp easily and scrap, production efficiency is low.

SUMMERY OF THE UTILITY MODEL

Therefore, the encapsulation injection mold for the opening edge of the box body needs to be provided aiming at the problems that the encapsulation injection mold is large in structure and consumes materials.

An injection mold for encapsulating an edge of a box opening, comprising: the front die is provided with a feeding hole; the rear die and the front die are detachably connected, and the rear die and the front die are matched to form a cavity when being closed; the driving assembly is arranged on one side of the rear die and is used for driving the box body to be close to the cavity during die assembly or to be far away from the cavity during die opening; the pouring assembly is arranged on the front mold and is connected with the feeding hole, and the pouring assembly is used for guiding molten plastic to the cavity; a connection assembly disposed between the front mold and the rear mold.

The utility model discloses a box opening edge rubber coating injection mold, the front mould is connected with the contact of back mould and forms the die cavity of moulding plastics during the compound die, drive the box motion through setting up drive assembly simultaneously, make the box be close to and the part inserts the die cavity during the compound die, it accomplishes the rubber coating to insert the part and moulds plastics, during the die sinking, drive assembly drives the box of rubber coating and keeps away from and be convenient for take out, the box opening edge rubber coating injection mold that this application discloses, setting through drive assembly, avoid the mould need hold the needs of whole box in the past, the structure of mould has been simplified by a wide margin, the degree of difficulty of getting of putting of box has been reduced simultaneously, mould raw materials and manpower man-hour have been saved, the production cost is reduced, and the production efficiency is improved.

In one of them embodiment, drive assembly includes the deflector, drives seat, cylinder fixing base, slide rail, slider and actuating lever, the deflector sets up on the back mould, be equipped with on the deflector the slide rail, the bottom of driving the seat is provided with the slider, the slider be equipped with the recess of slide rail adaptation, it can move along to drive the seat, it moves towards to drive the seat the lateral wall of die cavity is equipped with the recess, it passes through to drive the seat lateral wall of die cavity the actuating lever with the output of cylinder is connected, the cylinder fixing base sets up on the deflector, the cylinder fixing base with it sets up to drive the seat relatively, the cylinder sets up on the cylinder fixing base. Set up the deflector that has the slide rail on the back mould, drive the cooperation that the seat passes through slider and slide rail and can follow the deflector direction and slide, through set up the recess on driving the seat, the box inserts the recess and is fixed in and drives the seat, and the box is close to and keeps away from the die cavity of moulding plastics along with driving the seat under the drive of cylinder, and the cooperation is accomplished the rubber coating and is moulded plastics the course of working.

In one embodiment, the connecting assembly comprises a plurality of connecting columns, each connecting column comprises a column core and a fixing piece, the fixing pieces are arranged on the front die, one end of each column core is fixedly connected with the rear die, and the other end of each column core is detachably connected with the fixing piece. When the mold is closed, the front mold is connected with the rear mold through the connecting column, when the mold is opened, the injection molding machine moves to pull the rear mold, the column core of the connecting column on the rear mold is stressed to move along with the rear mold, the fixing piece is broken away, and the column core is separated from the front mold, so that the mold opening is realized.

In one embodiment, the connecting columns are arranged at intervals on three sides of the rear mould end wall far away from the driving component. Through set up the spliced pole at three sides of mould, can show the mould and the relative one side of box directly perceived, be favorable to more swiftly conveniently assembling.

In one embodiment, the connecting assembly comprises a plurality of guide posts, the guide posts are used for connecting the front die and the rear die, the guide posts are arranged on the rear die, and the front die is provided with guide holes matched with the guide posts. Through the setting of guide post and guiding hole, when front mould and back mould close the membrane, can guide front mould and back mould to close with the correct position, realize more accurate faster connection assembly.

In one embodiment, the front mold comprises a front mold fixing plate, a water gap plate, a front mold plate and a front mold core, the front mold fixing plate, the water gap plate and the front mold plate are sequentially connected, the front mold plate is provided with a front mold cavity, the front mold core is embedded in the front mold cavity, the rear mold comprises a rear mold core, a rear mold plate and a rear mold fixing plate, the rear mold plate is arranged on the rear mold fixing plate, a groove is formed in the side wall, close to the front mold, of the rear mold plate, part of the rear mold core is inserted into the groove, and the front mold core and the rear mold core form the cavity when being matched. The front mold is fixed through the front mold fixing plate and is connected with the feeding water nozzle and the mold plate of the front mold cavity, molten plastic is distributed to each pin hole feeding port through an ingate of the water nozzle plate, so that molten material enters a mold cavity, and meanwhile, the material in a flow channel is conveniently removed during mold opening; the rear die is fixed by a rear die fixing plate, and the rear die plate and the front die plate form a cavity to form a product together.

In one embodiment, the front mold further comprises an insert pin assembly, the front mold core is provided with an insert pin hole, the insert pin hole is matched with the insert pin assembly, at least part of the insert pin assembly penetrates through the insert pin hole, and the part of the insert pin assembly penetrating through the insert pin hole is used for being matched with a hole site of a box body. Through the setting of inlaying the needle, inlay the needle and inlay on the mold core, inlay the needle and pass and insert on the hole site of box behind the inlaying pinhole and can carry out spacingly to the box, play firm effect, the cooperation mold core is processed better.

In one embodiment, the front mold further comprises a front mold insert, the rear mold further comprises a rear mold insert, the side wall of the front mold core close to the rear mold plate is provided with a front mold core groove, the side wall of the rear mold core close to the front mold plate is provided with a rear mold core groove, the front mold insert is arranged in the front mold core groove, a front mold exhaust gap is formed between the front mold insert and the front mold core groove, the rear mold insert is arranged in the rear mold core groove, and a rear mold exhaust gap is formed between the rear mold insert and the rear mold core groove. Through the setting of front mould mold insert and back mould mold insert, the gap that forms between usable mold insert amalgamation and the mold core groove is supplementary to the die cavity and is exhausted, avoids the product to be stranded gas, has guaranteed the processingquality of product, and simple and convenient when mold insert installation in addition, excellent in use effect is difficult to damage, has reduced the mould because of the number of times that the mold insert damaged maintenance, has saved the maintenance economic spending in the mould use, improves mould performance, and the practicality is strong.

In one embodiment, the pouring component is embedded in the front mold, the pouring component includes a sprue bush and a runner component, the sprue bush and the runner component are disposed on the sprue plate, the feed port is disposed in the middle of the front mold fixing plate, the feed port, the sprue bush and the runner component are sequentially communicated, the runner component penetrates through the sprue plate, the front mold plate and the front mold core, and at least a part of the runner component is inserted into the cavity. Molten plastic gets into the mould and gets into the runner subassembly after the sprue bush of flowing through earlier, shunts through the runner subassembly, forms a plurality of narrow and small openings between runner subassembly and the die cavity, utilizes to contract the face of flowing and makes plastics reach effect with higher speed, and high shear rate can make plastics mobility good because the shear of plastics leads to rare characteristic, and in addition, after the shaping finishes, the first solidification of opening department seals, prevents the plastics backward flow to can avoid die cavity pressure to descend and lead to the shaping article to produce the shrink sunkenly too fast.

In one embodiment, the pouring assembly further comprises a positioning ring, the positioning ring is arranged on the front mold fixing plate and is matched with the feeding hole, an opening is formed in the upper surface of the sprue bush body, a guide hole is formed in the middle of the sprue bush body and is of an inverted cone structure, and the center lines of the positioning ring, the opening and the guide hole are overlapped. The injection molding machine is when the debugging, can collide with the sprue bush, when the central line of sprue bush is not unified with the central line of injection molding machine nozzle, can produce certain torsional force, very easily lead to the sprue bush to produce and rotate, thereby with the bolt, parts such as screw damage, the holistic precision of mould has also been reduced simultaneously, and inconvenient subsequent dismantlement, setting through the holding ring, add a concentric ring above the sprue bush, this ring is as big as the preceding template hole of injection molding machine, can guarantee during moulding plastics that the sprue bush position and the nozzle position of mould are unanimous.

In one embodiment, the solar water heater further comprises a condensation assembly, wherein the condensation assembly comprises a first condensation assembly and a second condensation assembly, the first condensation assembly and the second condensation assembly are used for being connected with an external water source, the first condensation assembly is arranged in the front mold, and the second condensation assembly is arranged in the rear mold. Through the setting of condensation subassembly, insert cold water formation water route in order to control the mould temperature when the shaping, be favorable to the even cooling of product to shaping in a short time.

Drawings

FIG. 1 is a perspective view of an opening edge encapsulation injection mold of a box body when the mold is closed;

FIG. 2 is a perspective view of an unencapsulated case;

FIG. 3 is a perspective view of a case that has been encapsulated;

FIG. 4 is a first exploded view of an injection mold for encapsulating the edges of an opening of a tank;

FIG. 5 is a second exploded view of the injection mold for encapsulating the rim of the opening of the tank;

FIG. 6 is a perspective view of the drive assembly;

FIG. 7 is a perspective view of the pouring assembly;

FIG. 8 is a perspective view of the flow passage assembly;

fig. 9 is an exploded view of the front mold core and the rear mold core.

Wherein, the corresponding relation between the reference mark and the part name is as follows:

the mold comprises a front mold 1, a front mold fixing plate 11, a nozzle plate 12, a front mold plate 13, a front mold core 14, a needle inserting assembly 15 and a front mold insert 16;

the rear die 2, the rear die fixing plate 21, the rear die plate 22, the rear die plate groove 221, the rear die core 23 and the rear die insert 24;

the device comprises a driving component 3, a guide plate 31, a driving seat 32, an air cylinder 33, an air cylinder fixing seat 34, a sliding rail 35, a sliding block 36 and a driving rod 37;

pouring assembly 4, positioning ring 41, sprue bush 42, runner assembly 43;

the connecting assembly 5, the connecting column 51 and the guide column 52;

a condensing assembly 6, a first condensing assembly 61 and a second condensing assembly 62.

Detailed Description

In order that the above objects, features and advantages of the present invention can be more clearly understood, a more particular description of the invention, taken in conjunction with the accompanying drawings and detailed description, is set forth below. It should be noted that the embodiments and features of the embodiments of the present application may be combined with each other without conflict.

In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, however, the present invention may be practiced otherwise than as specifically described herein and, therefore, the scope of the present invention is not limited by the specific embodiments disclosed below.

An injection mold for encapsulating the edge of an opening of a tank according to some embodiments of the present invention will be described with reference to the accompanying drawings.

As shown in fig. 1 to 4, the present embodiment discloses a tank opening edge encapsulation injection mold, which includes: the front die 1 is provided with a feeding hole; the rear die 2, the rear die 2 and the front die 1 are detachably connected, and the rear die 2 and the front die 1 are matched to form a cavity when being closed; the driving component 3 is arranged on one side of the rear die 2, and the driving component 3 is used for driving the box body to be close to the die cavity when the die is closed or to be far away from the die cavity when the die is opened; the pouring component 4 is arranged on the front die 1, the pouring component 4 is connected with the feeding hole, and the pouring component 4 is used for guiding the molten plastic to the cavity; and the connecting assembly 5 is arranged between the front die 1 and the rear die 2.

The utility model discloses a box opening edge rubber coating injection mold, front mould 1 is connected with 2 contacts of back mould and forms the die cavity of moulding plastics during the compound die, drive the box motion through setting up drive assembly 3 simultaneously, make the box be close to and the part inserts the die cavity during the compound die, it moulds plastics to insert the partial rubber coating of accomplishing to it, during the die sinking, drive assembly 3 drives the box of rubber coating and keeps away from and be convenient for take out, the box opening edge rubber coating injection mold that this application discloses, setting through drive assembly 3, avoid the past need that the mould need hold whole box, the structure of mould has been simplified by a wide margin, the degree of difficulty of getting is put to the box has been reduced simultaneously, mould raw materials and manpower man-hour have been saved, the production cost is reduced, the production efficiency is improved.

As shown in fig. 6, in addition to the features of the above embodiment, the present embodiment further defines: drive assembly 3 includes deflector 31, drive seat 32, cylinder 33, cylinder fixing base 34, slide rail 35, slider 36 and actuating lever 37, deflector 31 sets up on back mould 2, be equipped with slide rail 35 on the deflector 31, the bottom that drives seat 32 is provided with slider 36, slider 36 is equipped with the recess with slide rail 35 adaptation, it can remove along slide rail 35 to drive seat 32, it is equipped with the recess to drive the lateral wall of seat 32 towards the die cavity, the lateral wall that drives seat 32 dorsad the die cavity passes through actuating lever 37 and is connected with the output of cylinder 33, cylinder fixing base 34 sets up on deflector 31, cylinder fixing base 34 sets up with driving seat 32 relatively, cylinder 33 sets up on cylinder fixing base 34. The rear die 2 is provided with a guide plate 31 with a slide rail 35, the driving seat 32 can slide along the direction of the guide plate 31 through the matching of a slide block 36 and the slide rail 35, a groove is formed in the driving seat 32, the box body is inserted into the groove and fixed in the driving seat 32, and the box body is close to and far away from an injection molding cavity under the driving of the cylinder 33 along with the driving seat 32, so that the encapsulation and injection molding processing process is completed in a matching way.

As shown in fig. 1, 4 and 5, in addition to the features of the above embodiments, the present embodiment further defines: coupling assembling 5 includes a plurality of spliced poles 51, and spliced pole 51 includes post core and mounting, and the mounting setting is on front mould 1, post core one end and 2 fixed connection of back mould, the separable connection of post core other end and mounting. When the mold is closed, the front mold 1 is connected with the rear mold 2 through the connecting column 51, when the mold is opened, the injection molding machine moves to pull the rear mold 2, the column core of the connecting column 51 on the rear mold 2 is stressed and moves along with the displacement of the rear mold, the fixing part is broken away, and the column core is separated from the front mold 1, so that the mold opening is realized.

In addition to the features of the above embodiments, the present embodiment further defines: the connecting posts 51 are spaced apart on three sides of the end wall of the rear mould 2 remote from the drive assembly 3. The connecting column 51 is arranged on three sides of the mold, so that the side, opposite to the box body, of the mold can be visually displayed, and the assembly is more rapid and convenient.

As shown in fig. 1, 4 and 5, in addition to the features of the above embodiments, the present embodiment further defines: the connecting assembly 5 comprises a plurality of guide posts 52, the guide posts 52 are used for connecting the front die 1 and the rear die 2, the guide posts 52 are arranged on the rear die 2, and the front die 1 is provided with guide holes matched with the guide posts 52. Through the setting of guide post 52 and guiding hole, when front mould 1 closed the membrane with back mould 2, can guide front mould 1 and back mould 2 to close with the correct position, realize more accurate faster connection assembly.

As shown in fig. 4 and 5, in addition to the features of the above embodiment, the present embodiment further defines: front mould 1 includes front mould fixed plate 11, nozzle plate 12, preceding template 13 and preceding mold core 14, front mould fixed plate 11, nozzle plate 12 and preceding template 13 connect gradually, preceding template 13 is equipped with preceding die cavity, preceding mold core 14 inlays in preceding die cavity, back mould 2 includes back mold core 23, back template 22 and back mold fixing plate 21, back template 22 sets up on back mold fixing plate 21, the lateral wall that back template 22 is close to front mould 1 is equipped with the recess, back mold core 23 part inserts in the recess, preceding mold core 14 forms the die cavity with the cooperation of back mold core 23. The front die 1 is fixed through the front die fixing plate 11 and is connected with a feeding water nozzle and a die plate of a front die cavity, molten plastic is shunted to each pinhole feeding port through an ingate of the water nozzle plate, so that molten material enters a die cavity, and meanwhile, the material in a flow channel is conveniently removed when the die is opened; the rear mold 2 is fixed by a rear mold fixing plate 21, and the rear mold plate 22 forms a cavity with the front mold plate 13 to mold a product together.

As shown in fig. 5 and 9, in addition to the features of the above embodiment, the present embodiment further defines: the front mold 1 further comprises an insert pin assembly 15, the front mold core 14 is provided with an insert pin hole, the insert pin hole is matched with the insert pin assembly 15, at least part of the insert pin assembly 15 penetrates through the insert pin hole, and the part of the insert pin assembly 15 penetrating through the insert pin hole is used for being matched with a hole site of the box body. Through the setting of inlaying the needle, inlay the needle and inlay on the mold core, inlay the needle and pass and insert on the hole site of box behind the needle hole and can carry on spacingly to the box, play firm effect, the cooperation mold core is processed better.

As shown in fig. 5 and 9, in addition to the features of the above embodiment, the present embodiment further defines: the front die 1 further comprises a front die insert 16, the rear die 2 further comprises a rear die insert 24, a front die core groove is formed in the side wall, close to the rear template 22, of the front die core 14, a rear die core groove is formed in the side wall, close to the front template 13, of the rear die core 23, the front die insert 16 is arranged in the front die core groove, a front die exhaust gap is formed between the front die insert 16 and the front die core groove, the rear die insert 24 is arranged in the rear die core groove, and a rear die exhaust gap is formed between the rear die insert 24 and the rear die core groove. Through the setting of front mould mold insert 16 and back mould mold insert 24, the gap that forms between usable mold insert amalgamation and the mold core groove is supplementary to the die cavity and is exhausted, avoids the product to be stranded gas, has guaranteed the processingquality of product, and simple and convenient during the installation of mold insert in addition, excellent in use effect is difficult to damage, has reduced the mould because of the number of times that the mold insert damaged maintenance, has saved the maintenance economic spending in the mould use, improves mould performance, and the practicality is strong.

As shown in fig. 4, 7 and 8, in addition to the features of the above embodiment, the present embodiment further defines: the pouring component 4 is embedded in the front mold 1, the pouring component 4 comprises a sprue bush 42 and a runner component 43, the sprue bush 42 and the runner component 43 are arranged on the nozzle plate 12, a feed inlet is formed in the middle of the front mold fixing plate 11, the feed inlet, the sprue bush 42 and the runner component 43 are sequentially communicated, the runner component 43 penetrates through the nozzle plate 12, the front mold plate 13 and the front mold core 14, and at least part of the runner component 43 is inserted into a mold cavity. Molten plastic gets into the mould and flows in runner subassembly 43 after runner cover 42 earlier, shunt through runner subassembly 43, form a plurality of narrow and small openings between runner subassembly 43 and the die cavity, utilize to contract the face that flows and make plastics reach accelerating effect, high shear rate can make plastics fluidity good because the shear of plastics leads to rare characteristic, in addition, after the shaping finishes, the first solidification of opening department is sealed, prevent the plastics backward flow, and can avoid die cavity pressure to descend and lead to the shaping article to produce the shrink sunken too soon.

As shown in fig. 4 and 7, in addition to the features of the above embodiment, the present embodiment further defines: the pouring assembly 4 further comprises a positioning ring 41, the positioning ring 41 is arranged on the front mold fixing plate 11, the positioning ring 41 is matched with the feeding hole, the upper surface of the sprue bush 42 body is provided with an opening, the middle of the sprue bush 42 body is provided with a guide hole, the guide hole is of an inverted cone structure, and the center lines of the positioning ring 41, the opening and the guide hole are superposed with each other. The injection molding machine can collide with the sprue bush 42 during debugging, when the central line of the sprue bush 42 is not unified with the central line of the injection molding machine nozzle, certain torsional force can be generated, the sprue bush 42 is easy to cause to rotate, so that the bolts, the screws and other parts are damaged, the integral precision of the mold is reduced, and the subsequent disassembly is inconvenient, through the arrangement of the positioning ring 41, a concentric circular ring is added above the sprue bush 42, the circular ring is as large as the hole of the front template 13 of the injection molding machine, and the position of the sprue bush 42 of the mold is ensured to be consistent with the position of the nozzle during injection molding.

As shown in fig. 5 and 9, in addition to the features of the above embodiment, the present embodiment further defines: the condensation device comprises a front mould 1 and a rear mould 2, and further comprises a condensation assembly 6, wherein the condensation assembly 6 comprises a first condensation assembly 61 and a second condensation assembly 62, the first condensation assembly 61 and the second condensation assembly 62 are used for being connected with an external water source, the first condensation assembly 61 is arranged in the front mould 1, and the second condensation assembly 62 is arranged in the rear mould 2. Through the setting of condensation subassembly 6, insert cold water formation water route in order to control the mould temperature when the shaping, be favorable to the even cooling of product to shaping in a short time.

The technical features of the above embodiments can be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the above embodiments are not described, but should be considered as the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The above examples only represent some embodiments of the present invention, and the description thereof is more specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.

Claims (10)

1. The utility model provides a box opening edge rubber coating injection mold which characterized in that includes:

the front die (1), the said front die (1) has feed inlets;

the rear die (2) is detachably connected with the front die (1), and the rear die (2) and the front die (1) are matched to form a cavity when being closed;

the driving component (3) is arranged on one side of the rear die (2), and the driving component (3) is used for driving the box body to be close to the cavity during die assembly or to be far away from the cavity during die opening;

the pouring component (4), the pouring component (4) is arranged on the front mold (1), the pouring component (4) is connected with the feeding hole, and the pouring component (4) is used for guiding molten plastic to the cavity;

a connection assembly (5), the connection assembly (5) is arranged between the front mold (1) and the rear mold (2).

2. The injection mold for encapsulating the edge of the opening of the box body according to claim 1, wherein the driving assembly (3) comprises a guide plate (31), a driving seat (32), an air cylinder (33), an air cylinder fixing seat (34), a sliding rail (35), a sliding block (36) and a driving rod (37), the guide plate (31) is arranged on the rear mold (2), the sliding rail (35) is arranged on the guide plate (31), the sliding block (36) is arranged at the bottom of the driving seat (32), the sliding block (36) is provided with a groove matched with the sliding rail (35), the driving seat (32) can move along the sliding rail (35), the side wall of the driving seat (32) facing the cavity is provided with a groove, the side wall of the driving seat (32) facing away from the cavity is connected with the output end of the air cylinder (33) through the driving rod (37), the air cylinder fixing seat (34) is arranged on the guide plate (31), the air cylinder fixing seat (34) is arranged opposite to the driving seat (32), and the air cylinder (33) is arranged on the air cylinder fixing seat (34).

3. The injection mold for encapsulating the edge of the opening of the box body as claimed in claim 1, wherein the connecting assembly (5) comprises a plurality of connecting columns (51), the connecting columns (51) comprise a column core and a fixing piece, the fixing piece is arranged on the front mold (1), one end of the column core is fixedly connected with the rear mold (2), and the other end of the column core is detachably connected with the fixing piece.

4. The injection mold for encapsulating the edge of an opening of a tank according to claim 1, characterized in that said connecting assembly (5) comprises a plurality of guide posts (52), said guide posts (52) being used for connecting said front mold (1) and said rear mold (2), said guide posts (52) being arranged on said rear mold (2), said front mold (1) being provided with guide holes cooperating with said guide posts (52).

5. The injection mold for encapsulating the edge of the opening of a box body according to claim 1, wherein the front mold (1) comprises a front mold fixing plate (11), a nozzle plate (12), a front mold plate (13) and a front mold core (14), the front mold fixing plate (11), the nozzle plate (12) and the front mold plate (13) are sequentially connected, the front mold plate (13) is provided with a front mold cavity, the front mold core (14) is embedded in the front mold cavity, the rear mold (2) comprises a rear mold core (23), a rear mold plate (22) and a rear mold fixing plate (21), the rear mold plate (22) is arranged on the rear mold fixing plate (21), a groove is arranged on the side wall of the rear mold plate (22) close to the front mold (1), the rear mold core (23) is partially inserted into the groove, and the front mold core (14) and the rear mold core (23) form the mold cavity when being matched.

6. The injection mold for encapsulating the edge of the opening of the box body as claimed in claim 5, wherein the front mold (1) further comprises an insert pin assembly (15), the front mold core (14) is provided with an insert pin hole, the insert pin hole is matched with the insert pin assembly (15), at least part of the insert pin assembly (15) passes through the insert pin hole, and the part of the insert pin assembly (15) passing through the insert pin hole is used for being matched with the hole position of the box body.

7. The injection mold for encapsulating the edge of the opening of the box body according to claim 5, wherein the front mold (1) further comprises a front mold insert (16), the rear mold (2) further comprises a rear mold insert (24), the front mold core (14) is provided with a front mold core groove near the side wall of the rear mold plate (22), the rear mold core (23) is provided with a rear mold core groove near the side wall of the front mold plate (13), the front mold insert (16) is arranged in the front mold core groove, a front mold exhaust gap is formed between the front mold insert (16) and the front mold core groove, the rear mold insert (24) is arranged in the rear mold core groove, and a rear mold exhaust gap is formed between the rear mold insert (24) and the rear mold core groove.

8. The injection mold for encapsulating the edge of the opening of the tank body according to claim 5, wherein the casting assembly (4) is embedded in the front mold (1), the casting assembly (4) comprises a sprue bush (42) and a runner assembly (43), the sprue bush (42) and the runner assembly (43) are arranged on the sprue plate (12), the feed port is arranged in the middle of the front mold fixing plate (11), the feed port, the sprue bush (42) and the runner assembly (43) are sequentially communicated, the runner assembly (43) penetrates through the sprue plate (12), the front mold plate (13) and the front mold core (14), and at least part of the runner assembly (43) is inserted into the cavity.

9. The injection mold for encapsulating the edge of the opening of the box body according to claim 8, wherein the casting assembly (4) further comprises a positioning ring (41), the positioning ring (41) is arranged on the front mold fixing plate (11), the positioning ring (41) is adapted to the feeding hole, the upper surface of the main body of the sprue bush (42) is provided with an opening, the middle part of the main body of the sprue bush (42) is provided with a guide hole, the guide hole is in an inverted cone structure, and the center lines of the positioning ring (41), the opening and the guide hole are coincident with each other.

10. The tank opening edge encapsulation injection mold according to claim 1, characterized by further comprising a condensation assembly (6), wherein the condensation assembly (6) comprises a first condensation assembly (61) and a second condensation assembly (62), the first condensation assembly (61) and the second condensation assembly (62) are used for connecting an external water source, the first condensation assembly (61) is arranged in the front mold (1), and the second condensation assembly (62) is arranged in the rear mold (2).

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