CN217803072U

CN217803072U - Injection mold

Info

Publication number: CN217803072U
Application number: CN202122600869.8U
Authority: CN
Inventors: 黄佰胜; 余志强; 林可贵
Original assignee: Shenzhen Nanhe Jianyi Mould Co ltd
Current assignee: Shenzhen Nanhe Jianyi Mould Co ltd
Priority date: 2021-10-27
Filing date: 2021-10-27
Publication date: 2022-11-15
Anticipated expiration: 2031-10-27

Abstract

The utility model provides an injection mold, which comprises an upper mold, wherein the upper mold is provided with an upper guide groove and upper mounting grooves positioned at two sides of the upper guide groove; the lower die is provided with a lower guide groove and lower mounting grooves positioned on two sides of the lower guide groove, and the lower guide groove is opposite to the upper guide groove; and the first guide assembly comprises a guide piece, two first guide blocks and two second guide blocks, the two first guide blocks are respectively arranged on the two upper guide grooves, the two second guide blocks are arranged on the two lower guide grooves, the upper end of the guide piece stretches into the upper guide grooves and can be slidably arranged between the two first guide blocks, and the lower end of the guide piece stretches into the lower guide grooves and can be slidably arranged between the two second guide blocks. When the guide matching is carried out, the two first guide blocks are used for accurately guiding the upper end of the guide piece, the second guide block is used for accurately guiding the lower end of the guide piece, one-time guiding is formed, accurate guiding is carried out again on the basis, and therefore the accuracy of closing and opening the upper die and the lower die is greatly improved.

Description

Injection mold

Technical Field

The utility model relates to a mould equipment field especially relates to an injection mold.

Background

At present, most plastic products are processed by an injection mold, liquid plastic can be solidified and molded according to the shape of a core cavity through the injection mold, and the plastic products can be repeatedly processed in a large batch. The investment of the mold is an important production investment, and the quality of the mold itself affects the molding of the product. The main structure of the mold comprises an upper mold and a lower mold, wherein the upper mold comprises a female mold plate, the lower mold comprises a male mold plate, and a plastic product is molded by the male mold plate and the female mold plate. The male and female mold plates are usually guided by a guide assembly during mold closing and opening so that the male and female mold plates can be aligned for mold closing. However, the prior art has the problem that the guiding precision of the upper die and the lower die is not enough, so that the shape and the size of a formed product are not qualified.

SUMMERY OF THE UTILITY MODEL

In order to overcome the defects of the prior art, one of the purposes of the utility model is to provide an injection mold to solve the technical problem that the upper mold and the lower mold in the prior art are not enough to result in unqualified product shape and size to the precision.

The utility model discloses an one of the purpose adopts following technical scheme to realize: an injection mold comprises an upper mold, wherein an upper guide groove and upper mounting grooves positioned on two sides of the upper guide groove are formed in the upper mold;

the lower die is provided with a lower guide groove and lower mounting grooves positioned on two sides of the lower guide groove, and the lower guide groove is over against the upper guide groove; and

first direction subassembly, including guide, two first guide blocks and two second guide blocks, two first guide block sets up respectively in two on the guide way, two the second guide block sets up in two on the guide way down, the upper end of guide stretches into go up in the guide way and slidable ground set up in two between the first guide block, the lower extreme of guide stretches into down in the guide way and slidable ground set up in two between the second guide block.

Optionally, the number of the first guiding assemblies is two, one of the two sets of the first guiding assemblies is disposed in the middle of the first side of the upper die and the lower die, the other set of the two sets of the first guiding assemblies is disposed in the middle of the second side of the upper die and the lower die, and the second side is opposite to the first side.

Optionally, the upper die comprises a female die plate, and the lower die comprises a male die plate;

the guide piece is in a long strip plate shape, and the length of the guide piece is smaller than the sum of the heights of the male template and the female template.

Optionally, the upper end of the guide member is fixed in the upper guide groove, or the lower end of the guide member is fixed in the lower guide groove.

Optionally, the opposite side surfaces of the two first guide blocks are inner side surfaces, and a chamfer or a fillet is arranged at the joint of the inner side surface of the first guide block and the lower side surface;

the opposite side surfaces of the two second guide blocks are inner side surfaces, and chamfers or fillets are arranged at the adjacent positions of the inner side surfaces of the second guide blocks and the upper side surfaces.

Optionally, the upper die comprises an upper fixing plate, a female die plate and an upper base plate arranged between the upper fixing plate and the female die plate, and the upper guide groove and the upper mounting groove are arranged in the middle of the side face of the female die plate.

Optionally, the lower mould includes bottom plate, public template, lower bolster plate, goes up thimble board, lower thimble board and moulding foot, public template is located the top of bottom plate, the lower bolster plate set up in the bottom of public template, the moulding foot set up in the bottom plate with support between the lower bolster plate the bottom plate with interval between the lower bolster plate, go up the thimble board with the thimble board is located down between lower bolster plate and the lower plate, it is located to go up the thimble board down thimble board top, down the guide way with the mounting groove set up in the side middle part of public template down.

Optionally, the upper mold comprises a female mold plate, and the lower mold comprises a male mold plate;

the injection mold further comprises a plurality of groups of second guide assemblies, one part of each second guide assembly is connected with the female template, and the other part of each second guide assembly is connected with the male template.

Optionally, the second guide assembly comprises an upper guide seat, a lower guide seat and a guide rod, the upper guide seat is arranged on the side surface of the female template, an upper guide hole matched with the guide rod is formed in the upper guide seat, the lower guide seat is arranged on the side surface of the male template, a lower guide hole matched with the guide rod is formed in the lower guide seat, the upper end of the guide rod penetrates through the upper guide hole, the lower end of the guide rod penetrates through the lower guide hole, and the length of the guide rod is greater than the sum of the heights of the female template and the male template.

Optionally, both ends of the guide rod are provided with a locking screw and a limiting ring for placing the guide tube to fall off, and the locking screw is connected with the end face of the guide rod so as to lock the limiting ring at the end of the guide rod.

Compared with the prior art, the beneficial effects of the utility model reside in that:

in the injection mold of the utility model, the upper guide groove is arranged on the upper mold, the lower guide groove is arranged on the lower mold, the guide piece is used as a guide structure, and the guide piece is used for guiding the upper mold and the lower mold closing and opening mold once; more importantly, under the guide complex prerequisite of aforementioned guide, last guide way and lower guide way, two first guide blocks and two second guide blocks are add to first direction subassembly to for fixed two first guide blocks and two second guide blocks, set up mounting groove and lower mounting groove on last guide way and lower guide way respectively, make two first guide blocks can be fixed in the both sides of the upper end of guide, and make two second guide blocks can be fixed in the both sides of the lower extreme of guide. When the guide is matched, the two first guide blocks accurately guide the upper end of the guide piece, and the second guide block accurately guides the lower end of the guide piece, so that a guide basis is formed, and the guide is accurately conducted again, so that the accuracy of die closing and opening of the upper die and the lower die is greatly improved, the accuracy of the shape and the size of a product is ensured, and the product quality is improved.

Drawings

Fig. 1 is a schematic block diagram of an injection mold according to the present invention;

fig. 2 is an exploded schematic view of the injection mold of the present invention;

fig. 3 is a schematic diagram of the mold opening state of the injection mold of the present invention.

In the figure:

1. an upper die; 11. a master template; 12. an upper fixing plate; 13. an upper base plate;

2. a lower die; 21. a male template; 211. an upper layer template; 212. a lower layer template; 22. a lower fixing plate; 23. a lower base plate; 24. an upper ejector plate; 25. a lower ejector plate; 26. a mould leg;

3. a first guide assembly; 31. a first guide block; 32. a second guide block; 33. a guide member;

4. a second guide assembly; 41. an upper guide seat; 42. a lower guide seat; 43. a guide bar; 44. locking screws; 45. a limiting ring;

5. an upper guide groove;

6. mounting a mounting groove;

7. a lower guide groove;

8. and a lower mounting groove.

Detailed Description

The present invention will be further described with reference to fig. 1 to 3 and the detailed description thereof, and it should be noted that, in the premise of no conflict, the embodiments or technical features described below may be arbitrarily combined to form a new embodiment.

As shown in fig. 1 to 3, the utility model provides an injection mold for plastic product molding, the injection mold primary structure includes mould 1, lower mould 2 and first direction subassembly 3. Wherein, the upper die 1 is provided with an upper guide groove 5 and upper mounting grooves 6 positioned at two sides of the upper guide groove 5. The lower die 2 is provided with a lower guide groove 7 and lower mounting grooves 8 positioned at two sides of the lower guide groove 7, and the lower guide groove 7 is over against the upper guide groove 5. First guide assembly 3 includes guide 33, two first guide blocks 31 and two second guide blocks 32, two first guide blocks 31 set up respectively on two last guide way 5, two second guide blocks 32 set up on two lower guide ways 7, the upper end of guide 33 stretches into in the guide way 5 and slidable and sets up between two first guide blocks 31, the lower extreme of guide 33 stretches into down in the guide way 7 and slidable sets up between two second guide blocks 32. In this embodiment, the upper guide groove 5 is provided on the upper die 1, the lower guide groove 7 is provided on the lower die 2, and the guide 33 is used as a guide structure to guide the closing and opening of the upper die 1 and the lower die 2 once through the guide 33, and more importantly, in this embodiment, on the premise that the guide 33, the upper guide groove 5 and the lower guide groove 7 are guided to cooperate, the first guide assembly 3 is additionally provided with two first guide blocks 31 and two second guide blocks 32, and in order to fix the two first guide blocks 31 and the two second guide blocks 32, the upper mounting groove 6 and the lower mounting groove 8 are respectively provided on the upper guide groove 5 and the lower guide groove 7, so that the two first guide blocks 31 can be fixed on both sides of the upper end of the guide 33, and the two second guide blocks 32 can be fixed on both sides of the lower end of the guide 33. When the guiding is matched, the two first guide blocks 31 are used for accurately guiding the upper end of the guide part 33, and the second guide block 32 is used for accurately guiding the lower end of the guide part 33, so that a guiding basis is formed, and the guiding is accurately performed again, so that the accuracy of die closing and opening of the upper die 1 and the lower die 2 is greatly improved, the accuracy of the shape and the size of a product is ensured, and the product quality is improved.

In some embodiments, as shown in fig. 1 to 3, the first guiding assemblies 3 are two sets, wherein one set of the first guiding assemblies 3 is disposed in the middle of a first side of the upper mold 1 and the lower mold 2, and the other set of the first guiding assemblies 3 is disposed in the middle of a second side of the upper mold 1 and the lower mold 2, the second side being opposite to the first side. In this embodiment, the upper mold 1 and the lower mold 2 are guided to mold and open from opposite sides of the injection mold, so that both the first side and the second side of the injection mold can be guided accurately and uniformly.

In some embodiments, as shown in fig. 1 to 3, the upper mold 1 includes a female mold plate 11 and the lower mold 2 includes a male mold plate 21. The guide 33 has an elongated plate shape, and the length of the guide 33 is smaller than the sum of the heights of the male and

female pattern plates

21 and 11. In the present embodiment, the guide 33 is designed in a long plate shape, and the length of the guide 33 is limited, specifically, the length of the guide 33 is shortened, so that the guide 33 has a wide and flat plate-shaped structure, has higher strength, is difficult to deform particularly during clamping guiding, and improves guiding accuracy.

In some embodiments, as shown in fig. 1 to 3, the upper end of the guide 33 is fixed in the upper guide groove 5, or the lower end of the guide 33 is fixed in the lower guide groove 7. In the mold closing and opening guide, the guide member 33 is guided and matched with the upper guide groove 5 or the lower guide groove 7, so that in the embodiment, the guide member 33 is fixed in the upper guide groove 5, specifically, is fixedly connected with the mother template 11; it is of course also possible that the guide 33 is fixed in the lower guide groove 7, in particular in fixed connection with the core plate 21.

In some embodiments, as shown in fig. 1 to 3, the opposite sides of the two first guide blocks 31 are inner sides, and the junctions between the inner sides and the lower sides of the first guide blocks 31 are provided with chamfers or fillets. The opposite side surfaces of the two second guide blocks 32 are inner side surfaces, and the adjacent part of the inner side surfaces and the upper side surfaces of the second guide blocks 32 is provided with a chamfer or a fillet. In the present embodiment, chamfers or rounded corners are provided on the inner sides of the two first guide blocks 31 and the inner sides of the two second guide blocks 32, so that the guide guides 33 can be accurately slid between the two first guide blocks 31 or accurately slid between the two second guide blocks 32.

In some embodiments, as shown in fig. 1 to 3, the upper mold 1 includes an upper fixing plate 12, a female mold plate 11, and an upper mat 13 disposed between the upper fixing plate 12 and the female mold plate 11, and the upper guide groove 5 and the upper mounting groove 6 are disposed at a lateral middle portion of the female mold plate 11.

More specifically, an upper guide groove 5 and an upper installation groove 6 are provided at both the first side middle portion and the second side middle portion of the female mold plate 11.

In some embodiments, as shown in fig. 1 to 3, the lower mold 2 includes a lower fixing plate 22, a male mold plate 21, a lower bolster plate 23, an upper ejector plate 24, a lower ejector plate 25, and a mold foot 26, the male mold plate 21 is located above the lower fixing plate 22, the mold foot 26 is disposed between the lower fixing plate 22 and the male mold plate 21 to support a space between the lower fixing plate 22 and the male mold plate 21, the upper ejector plate 24 and the lower ejector plate 25 are located between the male mold plate 21 and the lower fixing plate 22, the upper ejector plate 24 is located above the lower ejector plate 25, and the lower guide groove 7 and the lower mounting groove 8 are disposed in a lateral middle portion of the male mold plate 21.

More specifically, a lower guide groove 7 and a lower installation groove 8 are provided at both the first side middle portion and the second side middle portion of the core plate 21.

In some further embodiments, as shown in fig. 1-3, the core plate 21 further comprises an upper layer plate 211 and a lower layer plate 212, and the aforementioned lower backing plate 23 is located at the bottom of the lower layer plate 212.

More specifically, the aforementioned lower guide groove 7 extends from the upper form 211 to the lower form 212, and the lower mounting groove 8 is provided on the upper form 211. Of course, the lower installation groove 8 may also partially extend to the lower formwork 212.

In some embodiments, as shown in fig. 1 to 3, the upper mold 1 includes a female mold plate 11 and the lower mold 2 includes a male mold plate 21. The injection mold further comprises a plurality of sets of second guide assemblies 4, one portion of the second guide assemblies 4 is connected with the female mold plate 11, and the other portion of the second guide assemblies 4 is connected with the male mold plate 21. In this embodiment, the first guide assembly 3 and the second guide assembly 4 are provided at the same time, so that the first guide assembly 3 performs precise guiding and the second guide assembly 4 performs basic guiding. Stated another way, the second guide assembly 4 is used as a basic guide, the upper die 1 and the lower die 2 are integrally used for die closing and die opening guide based on the second guide assembly 4, and the first guide assembly 3 is used for fine adjustment of the upper die 1 and the lower die 2 on the basis of the basic guide so as to perform more accurate die closing and die opening guide. In the embodiment, the double guide is adopted, the basic guide and the accurate guide are respectively adopted, and the matching and die opening precision of the injection mold is improved through the mutual matching of the first guide assembly 3 and the second guide assembly 4.

In some further embodiments, as shown in fig. 1 to 3, the second guiding assembly 4 includes an upper guiding seat 41, a lower guiding seat 42 and a guiding rod 43, the upper guiding seat 41 is disposed on a side surface of the female mold plate 11, an upper guiding hole adapted to the guiding rod 43 is disposed on the upper guiding seat 41, the lower guiding seat 42 is disposed on a side surface of the male mold plate 21, a lower guiding hole adapted to the guiding rod 43 is disposed on the lower guiding seat 42, an upper end of the guiding rod 43 penetrates through the upper guiding hole, a lower end of the guiding rod 43 penetrates through the lower guiding hole, and a length of the guiding rod 43 is greater than a sum of heights of the female mold plate 11 and the male mold plate 21. In this embodiment, the upper guide holder 41 and the lower guide holder 42 and the guide bar 43 having a large length are provided to guide the upper mold 1 and the lower mold 2 to mold and open the molds in a long stroke.

In addition, the length of the guide 33 is smaller than the sum of the heights of the male and

female mold plates

21 and 11, the length of the guide bar 43 is larger than the sum of the heights of the female and

male mold plates

11 and 21, the guide bar 43 has a longer length than the guide 33, the guide bar 43 guides the mold clamping and opening in a full stroke, and the guide 33 guides a partial stroke, particularly the stroke before and after the mold clamping. In this exemplary embodiment, the second guide assembly 4 therefore performs a full-stroke basic guide, and the first guide assembly 3 performs a partial-stroke guide, in particular a partial-stroke guide close to the clamping.

In some embodiments, as shown in fig. 1 to 3, both ends of the guide rod 43 are provided with a locking screw 44 and a stop collar 45 for placing the guide tube to be detached, and the locking screw 44 is connected with the end surface of the guide rod 43 to lock the stop collar 45 to the end of the guide rod 43. Limiting rings 45 are arranged at the upper end and the lower end of the guide rod 43, and the guide rod 43 is placed through the limiting rings 45 to fall off from the upper guide seat 41 and the lower guide seat 42. And the lock screw 44 fixes the retainer ring 45 to the end of the guide bar 43.

The above embodiments are only preferred embodiments of the present invention, and the protection scope of the present invention cannot be limited thereby, and any insubstantial changes and substitutions made by those skilled in the art based on the present invention are all within the protection scope of the present invention.

Claims

1. An injection mold is characterized by comprising

The upper die is provided with an upper guide groove and upper mounting grooves positioned on two sides of the upper guide groove;

the lower die is provided with a lower guide groove and lower mounting grooves positioned on two sides of the lower guide groove, and the lower guide groove is opposite to the upper guide groove; and

the first guide assembly comprises a guide piece, two first guide blocks and two second guide blocks, wherein the two first guide blocks are arranged on the two upper guide grooves respectively, the two second guide blocks are arranged on the two lower guide grooves, the upper end of the guide piece stretches into the two upper guide grooves and can be arranged between the two first guide blocks in a sliding mode, and the lower end of the guide piece stretches into the two lower guide grooves and can be arranged between the two second guide blocks in a sliding mode.

2. The injection mold of claim 1, wherein: first direction subassembly is two sets of, one of them group first direction subassembly set up in go up the first side middle part of mould and lower mould, another group first direction subassembly set up in go up the second side middle part of mould and lower mould, the second side is relative with first side.

3. The injection mold of claim 2, wherein: the upper die comprises a female die plate, and the lower die comprises a male die plate;

4. The injection mold of claim 1, wherein: the upper end of the guide piece is fixed in the upper guide groove, or the lower end of the guide piece is fixed in the lower guide groove.

5. The injection mold of claim 1, wherein: the opposite side surfaces of the two first guide blocks are inner side surfaces, and a chamfer or a fillet is arranged at the adjacent position of the inner side surfaces and the lower side surfaces of the first guide blocks;

6. An injection mold according to any of claims 1 to 5, wherein: the upper die comprises an upper fixed plate, a female die plate and an upper base plate arranged between the upper fixed plate and the female die plate, and the upper guide groove and the upper mounting groove are arranged in the middle of the side face of the female die plate.

7. An injection mold according to any of claims 1 to 5, wherein: the lower mould includes bottom plate, public template, lower bolster, goes up thimble board, lower thimble board and mould foot, public template is located the top of lower plate, the lower bolster set up in the bottom of public template, the mould foot set up in the lower plate with support between the lower bolster the lower plate with interval between the lower bolster, go up the thimble board with the thimble board is located down between lower bolster and the lower plate, it is located to go up the thimble board down the thimble board top, down the guide way with the mounting groove set up in the side middle part of public template down.

8. The injection mold of claim 1, wherein the upper mold comprises a female mold plate and the lower mold comprises a male mold plate;

the injection mold further comprises a plurality of groups of second guide assemblies, one part of each second guide assembly is connected with the female mold plate, and the other part of each second guide assembly is connected with the male mold plate.

9. The injection mold according to claim 8, wherein the second guide assembly comprises an upper guide seat, a lower guide seat and a guide rod, the upper guide seat is arranged on the side surface of the female mold plate, the upper guide seat is provided with an upper guide hole matched with the guide rod, the lower guide seat is arranged on the side surface of the male mold plate, the lower guide seat is provided with a lower guide hole matched with the guide rod, the upper end of the guide rod penetrates through the upper guide hole, the lower end of the guide rod penetrates through the lower guide hole, and the length of the guide rod is greater than the sum of the heights of the female mold plate and the male mold plate.

10. An injection mold according to claim 9, wherein: the both ends of guide bar all are equipped with locking screw and are used for placing the spacing ring that the stand pipe drops, locking screw with the terminal surface of guide bar is connected in order to with the spacing ring lock in the tip of guide bar.