CN111844636A

CN111844636A - Easily-installed die frame

Info

Publication number: CN111844636A
Application number: CN202010640987.9A
Authority: CN
Inventors: 陈德强; 张三青; 杜必慎
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-07-06
Filing date: 2020-07-06
Publication date: 2020-10-30
Anticipated expiration: 2040-07-06
Also published as: CN111844636B

Abstract

The invention provides an easy-to-install die carrier, which comprises a lower die carrier and an upper die carrier arranged on the lower die carrier; the lower die frame comprises a bottom plate, a supporting part and an ejector pin plate group; the bottom of the supporting part is provided with a first mounting groove; a second mounting groove is formed in the middle of the upper side of the supporting part; the bottom plate is arranged below the supporting part or in the first mounting groove; the second mounting groove is provided with a first fixing hole; one end of the ejector pin plate group is movably arranged on the bottom plate and is positioned in the first mounting groove; and the left side and the right side of the ejector pin plate group penetrate through the ejector pin plate group through hole on the supporting part. The invention has the beneficial effects that: the die holder can be suitable for multiple groups of die cores, the upper die core and the lower die core are connected with the upper die holder and the lower die holder in a bolt connection mode, and the die cores can be replaced quickly. The manufacturing time and cost of the die can be greatly reduced. The upper and lower mold cores do not have large-area contact with a plate for installing the guide fittings, so that heat energy is reduced to be transferred to the installation holes to enable the guide fittings to be installed and shifted.

Description

Easily-installed die frame

Technical Field

The invention relates to the technical field of molds, in particular to an easily-installed mold frame.

Background

With the continuous update of various new products in the development of society, the mold becomes the core and the key of the molding generation of the product. With the increasing number of new product development, 95% of the existing moulds in the market are new product test moulds, the market elimination rate of the new products is high, and the new products are not good in sales and stop production after being sold on the market. The test mould is piled up like a mountain, and the floor area of the product is large and is not easy to manage. The mold core multi-part of the existing mold is embedded on the mold frame of the mold in an embedding mode, the difficulty in replacing the mold core is high, the process is complex, and time is consumed. The easily-installed die frame can be applied to dies such as injection dies, die-casting dies and the like.

Disclosure of Invention

The invention aims to provide an easily-installed die frame, which solves the problems of large occupied area, long manufacturing period, low utilization rate, high price and the like of the conventional die.

An easily assembled mould frame comprises a lower mould frame and an upper mould frame arranged on the lower mould frame;

the lower die frame comprises a bottom plate, a supporting part and an ejector pin plate group; the supporting part is arranged on the bottom plate; a first through mounting groove is formed in the bottom of the supporting part along the transverse direction of the bottom plate; the supporting part is provided with a thimble plate group through hole for the thimble plate group to pass through; a second mounting groove which penetrates through the middle position of the upper side of the supporting part along the longitudinal direction of the bottom plate is arranged; the second mounting groove is provided with a plurality of first fixing holes; one end of the ejector pin plate group is movably arranged on the bottom plate and is positioned in the first mounting groove; the left side and the right side of the ejector pin plate group penetrate through the ejector pin plate group through hole on the supporting part; the supporting part is provided with a plurality of guide holes; the upper die frame comprises a top plate, two upper die bridges and a plurality of guide posts; the top plate is provided with a plurality of second fixing holes corresponding to the first fixing holes, and the middle of the top plate is provided with a plastic injection hole;

The two upper die bridges are arranged on the left side and the right side of the top plate; the upper die bridge is provided with a plurality of guide posts which are positioned above the guide holes.

Furthermore, the bottom plate and the supporting part are of an integrated structure.

Furthermore, the ejector plate group comprises an upper ejector plate, a lower ejector plate and at least two return pins, and the lower ejector plate is movably arranged on the bottom plate and is positioned in the first mounting groove; the upper ejector plate is arranged on the lower ejector plate; the upper thimble plate is provided with two first thimble mounting holes, the two first thimble mounting holes are respectively positioned below the two thimble plate through holes, and the two thimbles are arranged on the two thimble mounting holes and penetrate through the thimble plate group through holes.

Furthermore, the thimble plate group comprises a lower thimble plate, two return pin fixing plates and at least two return pins; the lower ejector plate is movably arranged on the bottom plate and is positioned in the first mounting groove; the two needle return fixing plates are arranged on the left side and the right side of the lower ejector plate; a second back needle mounting hole is formed in the back needle fixing plate; one end of the back needle is arranged in the second back needle mounting hole, and the other end of the back needle penetrates through the through hole of the ejector pin plate group.

Furthermore, the thimble plate group comprises a lower thimble plate and at least two return pins; the lower ejector plate is movably arranged on the bottom plate and is positioned in the first mounting groove; third needle returning mounting holes are formed in the left side and the right side of the lower ejector plate; one end of the back needle is arranged in the third back needle mounting hole, and the other end of the back needle penetrates through the through hole of the ejector pin plate group.

Furthermore, the thimble plate group comprises a lower thimble plate and at least two return pins; the lower ejector plate is movably arranged on the bottom plate and is positioned in the first mounting groove; second back needle mounting holes are formed in the left side and the right side of the lower ejector retainer plate; one end of the back needle is arranged in the second back needle mounting hole, and the other end of the back needle penetrates through the through hole of the ejector pin plate group.

Furthermore, the supporting part comprises two lower die bridges and two sizing blocks; the two sizing blocks are respectively arranged on the bottom plate and are positioned at the front end and the rear end of the bottom plate; the first fixing hole is arranged on the sizing block; the two lower die bridges are arranged on the two sizing blocks and are positioned on the left side and the right side of the sizing blocks; the two lower ejector pin plates are movably arranged between the two sizing blocks and are positioned below the lower die bridge; the through hole and the guide hole of the ejector plate group are both arranged on the lower die bridge.

Further, the mould also comprises a lower mould core backing plate; the lower die core backing plate is arranged between the two sizing blocks and the two lower die bridges, and a plurality of lower die core mounting holes are formed in the lower die core backing plate. When the lower mold core needs to be replaced, only the lower mold core backing plate corresponding to the lower mold core fixing hole position needs to be replaced, the lower mold core backing plate can be generally provided with the universal fixing hole position consistent with the position of the lower mold core, so that the lower mold core backing plate can not be replaced when the lower mold core is replaced, and the lower mold frame body does not need to be replaced. When the lower mold core base plate is used for too long time and the lower mold core mounting hole has the situations of sliding teeth and the like, only the lower mold core needs to be replaced.

Furthermore, the supporting part comprises two first doorframe-type bridge plates and two supporting parts; the two first door frame type bridge plates are arranged on the bottom plate and are positioned on the left side and the right side of the bottom plate; the ejector pin plate group is movably arranged below the first doorframe-type bridge plate; the through hole and the guide hole of the ejector pin plate group are both arranged on the first doorframe-type bridge plate. The two supporting pieces are arranged on the bottom plate and are positioned between the two first door frame type bridge plates; the first fixing hole is arranged on the supporting piece. The supporting part is divided into a plurality of parts, so that the supporting part is convenient to disassemble and assemble, and the supporting part is prevented from being too heavy and inconvenient to disassemble and assemble.

Further, the supporting piece is a sizing block or a cylinder. All objects that can support the lower core are possible and are not limited to shapes.

Further, the supporting part comprises two second doorframe-type bridge plates; the two second doorframe-type bridge plates are arranged on the bottom plate and are positioned at the left side and the right side of the bottom plate; the inner sides of the two second doorframe-shaped bridge plates are provided with planar placing grooves, and a plurality of doorframe mounting holes are formed in the placing grooves; the ejector pin plate group is movably arranged below the second doorframe-type bridge plate; and the through hole and the guide hole of the thimble plate group are both arranged on the second doorframe-type bridge plate. The second door frame type bridge plate can omit a supporting piece relative to the first door frame type bridge plate, so that the lower die frame can be conveniently installed.

Furthermore, a supporting guide sleeve is arranged in the guide hole.

Furthermore, the guide sleeve can be arranged to be a lengthened guide sleeve.

Furthermore, the device also comprises a plurality of height limiting columns; the height limiting column is provided with a guide column through hole and a bolt hole which penetrate through the height limiting column, the height limiting column is installed on the upper die bridge through the bolt hole, and the guide column penetrates through the guide column through hole and is installed on the upper die bridge. The through hole of the height limiting column is used for enabling the height limiting column to be arranged in the upper die bridge and the guide column to be capable of avoiding the space.

When the thickness of the upper mold core and/or the lower mold core is too high, height limiting columns with different heights are needed for adjustment. The height limiting column is mounted on the upper die bridge and penetrates through the guide column.

Furthermore, a back needle limiting hole is formed in the position, corresponding to the back needle, of the upper die bridge. The back needle limiting hole is used for a user to install a back needle limiting column with required length. The back needle with proper length is used for positioning the length of the ejector pin of the die, so that the ejector pin of the die can be prevented from being damaged in the die frame pressing process.

Furthermore, a return spring can be arranged on the return needle; the reset spring is positioned between the lower ejector plate and the supporting part. The reset spring can reset the mold thimble (including the whole thimble plate group) after the mold is opened.

Furthermore, a top rod hole is formed in the middle of the bottom plate. The ejector rod hole is used for pushing or pulling the ejector pin plate group back and forth by an ejector rod on a machine after the mold is opened, so that the ejector pin of the mold ejects a product, and even the ejector pin plate group can be reset.

Furthermore, when the bottom plate is arranged in the first mounting groove, the left side and the right side of the bottom plate are flush with the left side and the right side of the supporting part, or the left side and the right side of the bottom plate are positioned in the first mounting groove of the supporting part and positioned below the ejector pin plate group, and the bottom plate is used for supporting the ejector pin plate group. The length of the bottom plate is smaller than that of the first mounting groove, so that the ejector pin plate set is convenient to mount.

After the technical scheme is adopted, the invention has the beneficial effects that:

1. the upper mold core and the top plate are connected and installed through a second fixing hole; the last mould bridge setting of installation guide pillar is in the left and right sides of roof, and the bolt passes the second fixed orifices of last mold core and roof, goes up the mold core and does not have direct in close contact with the roof, the effectual thermal transmission that has reduced.

The lower mold core and the support piece are connected and installed through a first fixing hole; the lower die bridge of installation guide pin bushing sets up in the left and right sides of roof, and the bolt passes the first fixed orifices of lower mold core and supporting part, and lower mold core does not have direct in close contact with the supporting part, the effectual thermal transmission that has reduced. The upper die core and the lower die core are fixed on the upper die frame and the lower die frame in a bolt fixing mode, and the upper die core and the lower die core are simple, convenient and fast to disassemble, assemble and replace and convenient to maintain.

2. The height limiting columns with different heights are prepared frequently through requirements, so that the die carrier is suitable for die cores with different thicknesses, and the die carrier cannot be damaged.

3. Go up the mould bridge and set up with the lower mould bridge and take the incision to supply the mold core installation location to use, reduce the direct area of in close contact with of mould bridge, lower mould bridge and mold core by a wide margin, reduce the heat from the transmission of upper and lower mold core to the upper and lower bridge plate by a wide margin, be difficult for causing upper and lower mould bridge guiding hole and guide pillar mounting hole to warp, lead to the mould to open and shut not in the same direction as or block dead.

Drawings

Fig. 1 is a schematic diagram of the structure of the present invention.

Fig. 2 is a schematic view illustrating a structure of a lower mold frame according to an embodiment.

Fig. 3 is a schematic view illustrating another structure of a lower mold frame according to an embodiment.

Fig. 4 is a schematic view of the structure of the lower mold frame of the second embodiment.

Fig. 5 is a schematic view showing another structure of the lower mold frame according to the second embodiment.

Fig. 6 is a schematic view of the structure of the fourth lower mold frame of the embodiment.

Fig. 7 is a schematic view of another structure of the fourth lower mold frame of the embodiment.

Fig. 8 is a schematic view showing the overall structure of the lower mold frame.

Fig. 9 is another structural schematic view of the lower mold frame in an integral structure.

FIG. 9-1 is a schematic view of the lower mold frame with the support portion of unitary construction.

Fig. 9-2 is a schematic view of another structure of the lower mold frame with the support portion of unitary construction.

FIG. 10 is a schematic view of a lower mold frame of a thimble plate assembly according to a third embodiment.

Fig. 11 is a schematic structural view of a third lower mold frame of the embodiment.

Fig. 12 is a schematic structural view of an upper mold frame.

Fig. 13 is another structural schematic diagram of the upper mold frame.

1: go up the die carrier, 11: top plate, 111: glue injection hole, 112: second fixing hole, 12: upper mold bridge, 121: back stitch limiting hole, 122: upper bolt hole, 13: guide post, 14: height-limiting column, 15: first mounting groove, 16: second mounting groove, 2: lower mold frame, 21: bottom plate, 211: top roll hole, 22: sizing block, 221: first fixing hole, 23: lower mold bridge, 231: guide hole, 232: lower bolt hole, 24 backstitches, 25: return spring, 26: lower ejector plate, 261: upper needle plate, 27: guide sleeve, 28: clip fixing plate, 29: through hole 3 of the ejector plate group: first doorframe-type bridge plate, 31: placement groove, 32: door frame mounting hole, 4: support, 5: lower mold core backing plate, 6: a second doorframe-type bridge plate.

Detailed Description

As shown in fig. 1 to 13, the invention discloses an easily assembled mold frame, which comprises a lower mold frame 2 and an upper mold frame 11 arranged on the lower mold frame 2.

As shown in fig. 8 to 9, 9-1 and 9-2, the lower mold frame 2 includes a bottom plate 21, a support portion and an ejector pin plate group; the support part is arranged on the bottom plate 21; the support portion may be of unitary construction with the base plate 21. The bottom of the supporting part is provided with a first through mounting groove 15 along the transverse direction of the bottom plate 21; the supporting part is provided with a thimble plate group through hole 29 for the thimble plate group to pass through; the upper middle position of the support part is provided with a second mounting groove 16 which penetrates along the longitudinal direction of the bottom plate 21. The bottom plate 21 is disposed below the support portion or the bottom plate 21 is disposed in the first mounting groove 15, and when the bottom plate 21 is disposed in the first mounting groove 15, the lower end surface of the bottom plate 21 is flush with the lower end surface of the support portion. When the bottom plate 21 is disposed in the first mounting groove 15, the left and right sides of the bottom plate 21 are flush with the left and right sides of the supporting portion, or the left and right sides of the bottom plate 21 are disposed in the first mounting groove 15 and support the ejector pin plate group. The bottom plate 21 is provided in the first mounting groove 15 mainly for reserving a bolt passing hole. The length of the bottom plate is smaller than that of the first mounting groove, so that the ejector pin plate set is convenient to mount.

A plurality of first fixing holes 221 are arranged on the second mounting groove 16; the second mounting groove 16 is used for placing and mounting a lower mold core, and the lower mold core is fixed on the second mounting groove 16 through the first fixing hole 221. One end of the ejector pin group is movably arranged on the bottom plate 21 and is positioned in the first mounting groove 15; at the other end, the left side and the right side of the ejector pin plate group penetrate through the ejector pin plate group through hole 29 on the supporting part; the support portion is provided with a plurality of guide holes 231. A top roller hole 211 is formed at the middle of the bottom plate 21.

As shown in fig. 9, preferably, the four sides of the second mounting groove 16 are provided with notches for fixing the lower mold core, and the lower mold core can be directly nested into the notches of the second mounting groove 16.

As shown in fig. 11, the upper mold frame 1 includes a top plate 11, two upper mold bridges 12, and a plurality of guide posts 13. The top plate 11 is provided with a plurality of second fixing holes 112 corresponding to the first fixing holes 221, and the upper mold core is mounted on the lower end surface of the top plate 11 and fixed through the second fixing holes 112. A plastic injection hole 111 is formed in the middle of the top plate 11; the injection holes 111 are used for injection molding of plastic. Two upper mold bridges 12 are provided on the left and right sides of the top plate 11; a plurality of guide posts 13 are arranged on the upper mold bridge 12, and the guide posts 13 are positioned above the guide holes 231.

The upper die bridge of the upper die frame can be designed as shown in fig. 13, the inner side surfaces of the two upper die bridges 1 are provided with notches, and a placing groove for placing the upper die frame is formed between the notches of the two upper die bridges 1.

The first embodiment is as follows:

as shown in fig. 2 to 3, the support portion includes two lower mold bridges 23 and two sizing blocks 22; the two sizing blocks 22 are respectively arranged at the front end and the rear end of the bottom plate 21, the first fixing hole 221 is arranged on the two sizing blocks 22, and the two lower mold bridges 23 are arranged on the two sizing blocks 22 and are positioned at the left side and the right side of the two sizing blocks 22. Ejector pin plate set through holes 29 and guide holes 231 are provided in both lower mold bridges 23. A guide sleeve 27 is optionally disposed in the guide hole 231. As shown in fig. 3, the inner sides of the lower mold bridge 23 are preferably provided with notches, and the lower mold cores can be placed in the notches of the lower mold bridge 23.

Two lower die bridges 23 are arranged on two sizing blocks 22, a lower die core placing groove 31 for placing a lower die core is formed between the two lower die bridges 23 and the two sizing blocks 22, the lower die core is placed at the lower die core placing groove 31, a lower die core fixing hole corresponding to the first fixing hole 221 is formed in the lower die core, and a bolt penetrates through the lower die core fixing hole to be locked with the first fixing hole 221 so as to lock and fix the lower die core and the sizing blocks 22. The lower mold core is not in close contact with the sizing block 2222, so that heat conduction from the lower mold core to the sizing block 22 and the lower mold bridge 23 can be reduced. Between lower bridge plate and parallels 22, be provided with the hole that at least 6 precision positioning used, the equipartition is easily adorned every department of die carrier four corners 1 ~ 2 for precision positioning accessories such as mounting pin make two bridge plates and two parallels 22 precision positioning and can bear certain shearing strength.

The upper mold core is provided with a plurality of upper mold core holes corresponding to the second fixing holes 112, and bolts pass through the upper mold core holes to be locked and fixed with the second fixing holes 112, so that the upper mold core is fixed on the lower end surface of the top plate 11. Go up the mold core and 11 non-close contact of roof, can effectively reduce to go up the mold core and carry out heat conduction towards roof 11.

Preferably, the height limiting device further comprises a plurality of height limiting columns 14, wherein the height limiting columns 14 are provided with installation guide column through holes and bolt holes, the guide columns are inserted into the height limiting columns 14, and bolts penetrate through the bolt holes to be used for installing the height limiting columns 14 on the upper die bridge 12. The height limiting column adopts a guide column through hole to play a role in avoiding space with the guide column.

The ejector pin plate group can be formed by a plurality of schemes:

the first scheme is as follows: as shown in fig. 3, the ejector pin plate group includes an upper ejector pin plate 261, a lower ejector pin plate 26, and at least two return pins 24; the lower ejector plate 26 is movably arranged on the bottom plate 21 and is positioned in the first mounting groove 15, and the upper ejector plate 261 is arranged on the lower ejector plate 26. Two first thimble return 24 mounting holes are formed in the upper thimble plate 261 and are located below the thimble plate group through hole 29;

one end of each of the two back pins 24 is installed in the installation holes of the two first back pins 24, and the other end of each of the two back pins passes through the top pin plate set through hole 29 of the lower mold bridge 23.

The return needle 24 of the easy-to-install mold frame user can be provided with a return spring 25, and the return spring 25 is positioned between the upper ejector plate 261 and the lower mold bridge 23. The upper mold bridge 12 is provided with a back needle limiting hole 121 corresponding to the back needle 24.

Scheme II: as shown in fig. 2, the thimble group includes a lower thimble plate 26, two return pin fixing plates 28 and at least two return pins 24; the lower ejector plate 26 is movably arranged on the bottom plate 21 and is positioned in the first mounting groove 15, and the two return pin 24 fixing plates are arranged on the left side and the right side of the lower ejector plate 26 and are positioned below the lower mold bridge 23. The two back needle fixing plates 28 are respectively provided with a second back needle mounting hole,

one end of each of the two back pins 24 is disposed on the mounting hole of the two second back pins 24, and the other end passes through the ejector pin plate set through hole 29 on the lower mold bridge 23.

The third scheme is as follows: as shown in fig. 10, the ejector pin plate group includes a lower ejector pin plate 26 and at least two return pins 24, the lower ejector pin plate 26 is movably disposed on the bottom plate 21 and located in the first mounting groove 15, the lower ejector pin plate 26 is provided with two mounting holes for the third return pins 24, and the third mounting holes are located below the ejector pin plate group through holes 29; one end of each of the two back pins 24 is inserted into the third mounting hole, and the other end thereof passes through the top pin plate set through hole 29 on the lower mold bridge 23.

Example two:

as shown in fig. 4 to 5, the second embodiment is different from the first embodiment in that a lower core backing plate 5 is further included; the lower mold core backing plate 5 is positioned between the two sizing blocks 22 and the two lower mold bridges 23, and a plurality of lower mold core mounting holes are formed in the lower mold core backing plate 5. The lower mold core mounting hole is used for locking the lower mold core.

When the guide sleeve 27 is a lengthened guide sleeve 27, a pad guide hole 231 can be formed in the lower die core backing plate 5 corresponding to the guide hole 231 in the lower die bridge 23, and the lower die core backing plate 5 and the lengthened guide sleeve 27 are in clearance fit so as to be inserted into the lengthened end of the guide sleeve 27. Meanwhile, an avoidance hole is formed in the upper end face of the sizing block 22, and the aperture of the avoidance hole is larger than the outer diameter of the guide sleeve 27, so that the avoidance is required when the lengthened guide column of the die is inserted.

As shown in fig. 5, through notches are selectively formed at two ends of the inner side surface of the lower mold bridge 23, the notches form a planar groove for placing a lower mold core, and the lower mold core is placed on the lower mold core backing plate 5 and is located in the planar groove or is clamped in the planar groove.

Example three:

as shown in fig. 11, the third embodiment is different from the first embodiment in that; the supporting part comprises a first door frame bridge plate and two supporting pieces 4, wherein the two first door frame bridge plates 3 are arranged on the bottom plate 21 and are positioned on the left side and the right side of the bottom plate 21. The ejector pin plate group is movably arranged on the bottom plate 21 and is positioned below the first door frame bridge plate. Ejector pin plate group through hole 29 and guide hole 231 are provided on first doorframe-type bridge plate 3. The ejector pin plate group penetrates through the ejector pin plate group through hole 29. Two supports 4 are provided on the base plate 21 between the two first door frame bridge plates. First fixing holes 221 are provided on the support 4, and the first fixing holes 221 are used to fix the lower core. The support 4 is a sizing block 22 or a cylinder or sizing block 22 or other support 4 that can fixedly support the lower mold core.

Example four:

as shown in fig. 6 to 7, the difference between the fourth embodiment and the first embodiment is that: the support portion includes two second door frame type bridge plates 6, and two second door frame type bridge plates 6 are arranged on the bottom plate 21 and are located on the left and right sides of the bottom plate 21. The inner side surfaces of the two second door frame type bridge plates 6 are provided with placing grooves 31 for placing the lower mold cores, and a plurality of door frame mounting holes 32 are arranged in the placing grooves 31. The door frame mounting hole is used for locking the lower mold core.

The ejector pin plate group is movably arranged on the bottom plate 21 and is positioned below the second doorframe-type bridge plate 6, and the ejector pin plate group through hole 29 and the guide hole 231 are both arranged on the second doorframe-type bridge plate 6. The ejector pin plate group is movably arranged on the bottom plate 21 and penetrates through the ejector pin plate group through hole 29.

In conclusion, the invention realizes that one die set is suitable for a plurality of groups of die cores, the upper die core and the lower die core are connected with the upper die frame 1 and the lower die frame 2 in a bolt connection mode, and the die cores can be quickly replaced. A new product is tried only by manufacturing the upper mold core and the lower mold core, so that the manufacturing time and the cost of the mold can be greatly reduced, and the time for selling the product is won.

While the invention has been described with reference to specific preferred embodiments or examples for the purpose of understanding, it will be understood by those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the invention.

Claims

1. The easy-to-install die carrier is characterized in that: comprises a lower die carrier and an upper die carrier arranged on the lower die carrier;

the lower die frame comprises a bottom plate, a supporting part and an ejector pin plate group;

A first through mounting groove is formed in the transverse direction of the bottom of the supporting part; the supporting part is provided with a thimble plate group through hole for the thimble plate group to pass through; a second through mounting groove is formed in the middle of the upper end face of the supporting part in the longitudinal direction; the second mounting groove is provided with a plurality of first fixing holes;

the bottom plate is arranged below the supporting part or in the first mounting groove; when the bottom plate is arranged in the first mounting groove, the bottom of the bottom plate is flush with the bottom of the supporting part;

one end of the ejector pin plate group is movably arranged on the bottom plate and is positioned in the first mounting groove; the left side and the right side of the ejector pin plate group penetrate through the ejector pin plate group through hole on the supporting part; the supporting part is provided with a plurality of guide holes;

the upper die frame comprises a top plate, two upper die bridges and a plurality of guide posts;

the top plate is provided with a plurality of second fixing holes corresponding to the first fixing holes, and the middle of the top plate is provided with a plastic injection hole;

2. The easy-to-install mold frame of claim 1, wherein: the bottom plate and the supporting part are of an integrated structure.

3. The easy-to-install mold frame of claim 1, wherein: the ejector pin plate group comprises an upper ejector pin plate, a lower ejector pin plate and at least two return pins, and the lower ejector pin plate is movably arranged on the bottom plate and is positioned in the first mounting groove; the upper ejector plate is arranged on the lower ejector plate; and the two return pins are arranged on the left side and the right side of the upper ejector plate and penetrate through the through holes of the ejector plate group.

4. The easy-to-install mold frame of claim 1, wherein: the thimble plate group comprises a lower thimble plate, two return pin fixing plates and at least two return pins;

the lower ejector plate is movably arranged on the bottom plate and is positioned in the first mounting groove; the two needle return fixing plates are arranged on the left side and the right side of the lower ejector plate;

a first back needle mounting hole is formed in the back needle fixing plate; one end of the return pin is arranged in the first return pin mounting hole, and the other end of the return pin penetrates through the through hole of the ejector pin plate group.

5. The easy-to-install mold frame of claim 1, wherein: the thimble plate group comprises a lower thimble plate and at least two return pins;

the lower ejector plate is movably arranged on the bottom plate and is positioned in the first mounting groove; second back needle mounting holes are formed in the left side and the right side of the lower ejector retainer plate; one end of the back needle is arranged in the second back needle mounting hole, and the other end of the back needle penetrates through the through hole of the ejector pin plate group.

6. The easy-to-install mold frame of claim 1, wherein: the supporting part comprises two lower die bridges and two sizing blocks;

the two sizing blocks are arranged on the bottom plate and are positioned at the front end and the rear end of the bottom plate;

the first fixing hole is formed in the upper end face of the sizing block;

the two lower die bridges are arranged on the two sizing blocks and are positioned on the left side and the right side of the sizing blocks;

the two lower ejector pin plates are movably arranged between the two sizing blocks and are positioned below the lower die bridge;

the through hole and the guide hole of the ejector plate group are both arranged on the lower die bridge.

7. The easy-to-install mold frame of claim 1, wherein: the inner side surfaces of the two lower die bridges are provided with lower die bridge notches, and a lower die bridge placing groove used for placing a lower die core is formed between the two lower die bridge notches.

8. The easy-to-install mold frame of claim 6, wherein: the mould also comprises a lower mould core backing plate; the lower die core backing plate is arranged between the two sizing blocks and the two lower die bridges; the lower die core backing plate is provided with a plurality of lower die core mounting holes.

9. The easy-to-install mold frame of claim 1, wherein: the supporting part comprises two first doorframe-type bridge plates and two supporting parts;

The two first door frame type bridge plates are arranged on the bottom plate and are positioned on the left side and the right side of the bottom plate;

the ejector pin plate group is movably arranged below the first doorframe-type bridge plate;

the through hole and the guide hole of the ejector plate group are both arranged on the first doorframe-type bridge plate;

the two supporting pieces are arranged on the bottom plate and are positioned between the two first door frame type bridge plates; the first fixing hole is arranged on the supporting piece.

10. The easy-to-install mold frame of claim 9, wherein: the supporting piece is a sizing block or a cylinder.

11. The easy-to-install mold frame of claim 1, wherein: the supporting part comprises two second doorframe-type bridge plates; the two second doorframe-type bridge plates are arranged on the bottom plate and are positioned at the left side and the right side of the bottom plate; the inner sides of the two second doorframe-shaped bridge plates are provided with planar placing grooves, and a plurality of doorframe mounting holes are formed in the placing grooves;

the ejector pin plate group is movably arranged below the second doorframe-type bridge plate; and the through hole and the guide hole of the thimble plate group are both arranged on the second doorframe-type bridge plate.

12. The easy-to-install mold frame as claimed in any one of claims 1 to 11, wherein: and a guide sleeve is arranged in the guide hole.

13. The easy-to-install mold frame of claim 12, wherein: the guide sleeve is an extended guide sleeve.

14. The easy-to-install mold frame of claim 1, wherein: also comprises a plurality of height limiting columns; the height limiting column is provided with a guide column through hole and a bolt hole which penetrate through the height limiting column, the height limiting column is installed on the upper die bridge through the bolt hole, and the guide column penetrates through the guide column through hole and is installed on the upper die bridge.

15. The easy-to-install mold frame as claimed in any one of claims 3 to 5, wherein: and a back needle limiting hole is formed in the position, corresponding to the back needle, of the upper die bridge.

16. The easy-to-install mold frame as claimed in any one of claims 3 to 5, wherein: the return needle is provided with a return spring; the reset spring is positioned between the lower ejector plate and the supporting part.

17. The easy-to-install mold frame of claim 16, wherein: the middle of the bottom plate is provided with a top roller hole.

18. The easy-to-install mold frame of claim 1, wherein: when the bottom plate is arranged in the first mounting groove, the left side and the right side of the bottom plate are parallel and level with the left side and the right side of the supporting part, or the left side and the right side of the bottom plate are positioned in the first mounting groove of the supporting part and positioned below the ejector pin plate group, and the bottom plate is used for supporting the ejector pin plate group.