CN209869175U - Mould is used in plastic goods processing - Google Patents

Abstract

The utility model relates to a mold for processing plastic products, which comprises a lower mold frame; the lower die frame is provided with a lower mounting groove which is matched with the lower die in a clamping way; the upper die frame is provided with an upper mounting groove which is matched with the upper die in a clamping way; defining one side of the lower mold frame, which is provided with the lower mounting groove, as the upper surface of the lower mold frame; the sliding groove is formed in the lower die frame and communicated with the first groove in the lower die when the lower die is fixed; the fixing mechanism is assembled in the sliding groove in a sliding mode, and one side, facing the lower die, of the fixing mechanism is connected with one side, back to the core, of the sliding block; the fixing frame is arranged on the outer wall of the lower die frame; the driving mechanism is arranged on the fixing frame and used for driving the fixing mechanism to slide towards the lower die so as to drive the core to be inserted into the cavity or driving the fixing mechanism to slide back to the lower die so as to drive the core to be drawn out of the cavity, and the core is drawn out of the cavity when the fixing mechanism completely slides out of the sliding groove. The utility model discloses have and be convenient for fix the core in the die cavity and with the effect that the core removed from the die cavity.

Description

Mould is used in plastic goods processing

Technical Field

The utility model belongs to the technical field of the technique of mould and specifically relates to a mould is used in plastic goods processing.

Background

The mould is various moulds and tools for obtaining required products by injection molding, blow molding, extrusion, die casting or forging forming, smelting, stamping and other methods in industrial production. In short, a mold is a tool used to make a shaped article, the tool being made up of various parts, different molds being made up of different parts. The processing of the appearance of an article is realized mainly through the change of the physical state of a formed material. The element has the name of "industrial mother".

In the prior art, as shown in fig. 1, in a handle 1, one end of the handle 1 is open, and the interior of the handle 1 is hollow to form a cavity 11; the mould for processing the handle 1 comprises an upper mould 2, a lower mould 3 and a core 41, and the mould has two cavities; the upper die 2 and the lower die 3 are respectively provided with two cavities, the cavities on the upper die 2 and the lower die 3 correspond to each other one by one, and the upper die 2 and the lower die 3 are assembled to form two general cavities for processing the handle 1; one end of the mold core 41 extends into the cavity on the lower die 3 and is used for forming the cavity 11 in the handle 1 after the mold is assembled, a sliding block 42 is integrally formed at one end of the mold core 41 away from the cavity, a first groove 31 connected with the sliding block 42 in a sliding manner is formed in the lower die 3, a second groove 21 connected with the sliding block 42 in a sliding manner is formed in the upper die 2, after the upper die 2 and the lower die 3 are assembled, the first groove 31 and the second groove 21 are spliced to form a sliding groove for the sliding block 42 to pass through, and the sliding block 42 is abutted against the inner wall of the sliding groove; when the core 41 is placed above the sliding block 42 and is vertically placed, the vertical projection of the core 41 from top to bottom completely falls into the vertical projection of the sliding block 42 from top to bottom; the one end that the core 41 was kept away from to sliding block 42 is connected with fixed plate 43, has seted up two screw thread through-holes on the fixed plate 43, has seted up the screw thread blind hole that corresponds with the screw thread through-hole on the outer wall of last mould 2 and lower mould 3.

The above prior art solutions have the following drawbacks: when the mold core is installed, the upper mold and the lower mold are installed firstly, then the sliding block is held by hands, the mold core penetrates through the sliding groove to enter the mold cavity and form a cavity of the handle, after the mold core completely enters the mold cavity, the sliding block completely enters the sliding groove, the fixing plate is attached to the outer walls of the upper mold and the lower mold, then the fixing plate and the upper mold are fixed through one bolt, and the fixing plate and the lower mold are fixed through the other bolt; when the mold is opened, the mold core needs to be pulled out of the cavity to be disassembled; however, the above-described manner of fixing the core does not facilitate fixing and removing the core in and from the cavity, and thus needs to be improved.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a mould is used in plastic goods processing convenient to fix the core in the die cavity and remove the core from the die cavity.

The above utility model discloses an above-mentioned utility model purpose can realize through following technical scheme:

a mold for processing plastic products comprises: the device comprises a lower die frame, an upper die frame, a sliding groove, a fixing mechanism, a fixing frame and a driving mechanism;

the lower die frame is provided with a lower mounting groove which is matched with the lower die in a clamping way; the upper die frame is provided with an upper mounting groove which is matched with the upper die in a clamping way; defining one side of the lower mold frame, which is provided with the lower mounting groove, as the upper surface of the lower mold frame;

the sliding groove is formed in the lower die frame and communicated with the first groove in the lower die when the lower die is fixed;

the fixing mechanism is assembled in the sliding groove in a sliding mode, and one side, facing the lower die, of the fixing mechanism is connected with one side, back to the core, of the sliding block;

the fixing frame is arranged on the outer wall of the lower die frame; the driving mechanism is arranged on the fixing frame and used for driving the fixing mechanism to slide towards the lower die so as to drive the core to be inserted into the cavity or driving the fixing mechanism to slide back to the lower die so as to drive the core to be drawn out of the cavity, and the core is drawn out of the cavity when the fixing mechanism completely slides out of the sliding groove.

By adopting the technical scheme, when the core is installed, firstly the lower die is installed on the lower die frame, secondly the upper die is installed on the lower die, then the fixing mechanism is driven by the driving mechanism to slide towards the lower die, and then the core is driven by the sliding block to move towards the lower die until the core is inserted into the cavity; finally, the upper die frame is arranged on the lower die frame; when the core is disassembled, the upper die frame and the upper die are sequentially disassembled, then the driving mechanism drives the fixing mechanism to slide back to the lower die, and the sliding block drives the core to be drawn out of the cavity, namely, the core is drawn out of the cavity of the formed handle, so that the core can be removed from the cavity; compared with the prior art, the utility model discloses in, through foretell settlement, reached be convenient for fix the core in the die cavity and with the purpose that the core removed from the die cavity.

The utility model discloses further set up to: the fixing mechanism comprises a first vertical plate, a second vertical plate and a horizontal plate;

the first vertical plate, the second vertical plate and the horizontal plate are assembled in the sliding groove in a sliding mode, the second vertical plate is arranged on one side, back to the lower die, of the first vertical plate, and the horizontal plate is arranged on one side, back to the first vertical plate, of the second vertical plate;

the first vertical plate and the second vertical plate are arranged in a protruding mode relative to the upper surface of the lower die frame; the horizontal plate is parallel and level with the upper surface of lower framed, has seted up the joint groove on going up the framed, and joint adaptation in joint groove behind the combination of first vertical board and the vertical board of second.

By adopting the technical scheme, the first vertical plate, the second vertical plate and the horizontal plate are set, so that a foundation is established for the installation of the sliding block; on the other hand, a foundation is established for the fixing mechanism to slide along the sliding groove, and when the fixing mechanism slides towards or back to the lower die, the first vertical plate, the second vertical plate and the horizontal plate slide towards or back to the lower die simultaneously.

The utility model discloses further set up to: first guide face has been seted up to the one side of the vertical board of second dorsad first vertical board, offers the second guide face parallel and opposite with first guide face on the joint groove, and first guide face is the obtuse angle setting with the horizontal plate.

By adopting the technical scheme, on one hand, the setting is used for increasing the contact area between the upper die frame and the second vertical plate so as to improve the stability of the second vertical plate and the clamping groove in clamping; on the other hand, when the upper mold frame is arranged on the lower mold frame, a certain guiding function is realized, namely: the second guide surface slides along the first guide surface until the second guide surface completely coincides with the first guide surface, and the protruding portion of the first plate and the protruding portion of the second plate are completely engaged in the engaging groove.

The utility model discloses further set up to: the fixing frame comprises a first plate, a second plate and a side plate; the first plate is arranged on the outer wall of one side of the lower die frame, which is provided with the sliding groove, and the first plate is flush with the inner wall of the sliding groove, which is far away from the upper surface of the lower die frame; the second board sets up in the both sides of first board are relative, and second board and first board form the recess that communicates with the groove that slides, recess and fixed establishment looks slip adaptation, and the curb plate is located one side of first board back of the body lower mould frame.

By adopting the technical scheme, the first plate, the second plate and the side plates are set as the building foundation of the fixing frame; on one hand, an installation space is provided for installation of the driving mechanism; on the other hand, the fixing mechanism slides out of the sliding groove to form a groove matched with the sliding groove, so that the fixing mechanism can slide out of the sliding groove or slide into the sliding groove conveniently.

The utility model discloses further set up to: the driving mechanism comprises a hydraulic rod and an air cylinder;

the cylinder is arranged on one side of the side plate, which is back to the first plate; one end of the hydraulic rod is connected with the piston end of the air cylinder, and the other end of the hydraulic rod is connected with one side of the fixing mechanism, which is back to the lower die.

Through adopting above-mentioned technical scheme, the flexible first vertical board of drive, the vertical board of second and horizontal plate of cylinder piston end, the three slides along the groove orientation that slides or the lower mould that backs to simultaneously, and then drives the core through the sliding block and inserts in the die cavity of lower mould or drive the core through the sliding block and take out from the die cavity of lower mould.

The utility model discloses further set up to: the sliding block is located one side of the vertical board of first vertical board dorsad second, and the sliding block is four equal fillets in arris department of four arris platform forms and sliding block, and on first vertical board was located to the bottom surface of sliding block, spout and sliding block looks adaptation set up.

By adopting the technical scheme, on one hand, the sliding block plays a certain guiding role when sliding into the sliding groove; on the other hand is through the design of above-mentioned similar frustum joint for the sliding block is when not interfering to slide in from the spout with the roll-off, can increase the joint intensity of sliding block and spout when the joint.

The utility model discloses further set up to: the mold for processing the plastic products further comprises a fixing bolt, and the fixing bolt is sequentially connected onto the side plate, the second plate and the lower mold frame in a threaded manner.

By adopting the technical scheme, the fixing frame is fixed by using the fixing bolt; when the fixing frame is fixed, the fixing bolt is screwed into the side plate, the second plate and the lower die frame in sequence to fix the fixing frame; when the fixing plate is disassembled, the fixing bolt is screwed out of the lower die frame, the second plate and the side plate in sequence, and the fixing plate is disassembled.

The utility model discloses further set up to: the lower mould has been seted up the mounting groove towards one side of first vertical board, is equipped with the elastic component in the mounting groove, and when first vertical board laminated in the lower mould outer wall, the elastic component was in compression state

By adopting the technical scheme, when the first vertical plate, the second vertical plate and the horizontal plate all slide towards the lower die along the sliding groove, one side of the first vertical plate, which is back to the second vertical plate, extrudes the elastic piece, and when the first vertical plate is attached to the lower die, the elastic piece is in a compressed state; when the first vertical plate, the second vertical plate and the horizontal plate slide along the sliding groove back to the lower die, the elastic piece is under the action of self resilience force,

to sum up, the utility model discloses a beneficial technological effect does:

when the mold core is installed, firstly, the lower mold is installed on the lower mold frame, secondly, the upper mold is installed on the lower mold, then the fixing mechanism is driven by the driving mechanism to slide towards the lower mold, and then the mold core is driven by the sliding block to move towards the lower mold until the mold core is inserted into the mold cavity; finally, the upper die frame is arranged on the lower die frame; when the core is disassembled, the upper die frame and the upper die are sequentially disassembled, then the driving mechanism drives the fixing mechanism to slide back to the lower die, and the sliding block drives the core to be drawn out of the cavity, namely, the core is drawn out of the cavity of the formed handle, so that the core can be removed from the cavity; compared with the prior art, the utility model discloses in, through foretell settlement, reached be convenient for fix the core in the die cavity and with the purpose that the core removed from the die cavity.

Drawings

Fig. 1 is a schematic structural diagram of the background art.

Fig. 2 is a schematic structural diagram of the present invention.

Fig. 3 is a partial sectional structural view of the plane a-a in fig. 2.

In the figure, 1, a handle; 11. a cavity; 2. an upper die; 21. a second groove; 3. a lower die; 31. a first groove; 32. mounting grooves; 33. an elastic member; 41. a core; 42. a slider; 43. a fixing plate; 51. a lower mold frame; 511. a lower mounting groove; 512. a sliding groove; 52. putting a mold frame; 521. mounting a mounting groove; 6. a fixing mechanism; 61. a first vertical plate; 62. a second vertical plate; 621. a first guide surface; 63. a horizontal plate; 64. a clamping groove; 641. a second guide surface; 7. a fixing frame; 71. a first plate; 72. a second plate; 73. a side plate; 74. fixing the bolt; 8. a drive mechanism; 81. a hydraulic lever; 82. a cylinder; 83. a clamping sleeve; 84. a card slot; 9. and a through hole.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

Referring to fig. 2, the mold for processing plastic products of the present invention includes a lower mold frame 51, a lower mounting groove 511, an upper mold frame 52 and an upper mounting groove 521.

The lower die frame 51 is provided with a lower mounting groove 511 which is matched with the lower die 3 in a clamping manner, one side of the lower die frame 51 provided with the lower mounting groove 511 is defined as the upper surface of the lower die frame 51, the surface of one side of the lower die frame 3 provided with the cavity is flush with the upper surface of the lower die frame 51 after the lower die 3 is clamped on the lower die frame 51, and the lower mounting groove 511 is rectangular; the upper mold frame 52 is provided with an upper mounting groove 521 adapted to be clamped with the upper mold 2, the side of the upper mold frame 52 where the upper mounting groove 521 is provided is defined as the lower surface of the upper mold frame 52, the upper mold 2 is clamped behind the upper mold frame 52, the lower surface of the upper mold frame 52 is flush with the surface of the upper mold 2 where the cavity is provided, and the upper mounting groove 521 is rectangular.

Referring to fig. 2, the mold for processing plastic products further includes a slide groove 512. The sliding groove 512 is formed in one side of the upper surface of the lower mold frame 51, and the lower mold 3 is clamped in the lower mold frame 51, and the sliding groove 512 is communicated with the two first grooves 31 of the lower mold 3.

Referring to fig. 2, the mold for processing plastic products further includes a fixing mechanism 6. The fixing mechanism 6 is slidably connected in the sliding groove 512, and the fixing mechanism 6 is fixedly connected with the two cores 41 of the mold towards the vertical side of the lower mold 3.

The fixing mechanism 6 includes a first vertical plate 61, a second vertical plate 62, a horizontal plate 63, and a snap groove 64. The first vertical plate 61 is horizontally and slidably connected in the sliding groove 512, the second vertical plate 62 is installed on one side of the first vertical plate 61, which faces away from the lower die 3, the two cores 41 are installed at intervals on one side of the first vertical plate 61, which faces the sliding groove, and the second vertical plate 62 is horizontally and slidably connected in the sliding groove 512; the horizontal plate 63 is mounted on the side of the second vertical plate 62 facing away from the first vertical plate 61; the first vertical plate 61, the second vertical plate 62 and the horizontal plate 63 are rectangular, one half of the first vertical plate 61 is slidably connected in the sliding groove 512, the other half of the first vertical plate 61 is arranged in a protruding mode relative to the upper surface of the lower die frame 51, one half of the second vertical plate 62 is slidably connected in the sliding groove 512, the other half of the second vertical plate 62 is arranged in a protruding mode relative to the upper surface of the lower die frame 51, one side, facing the upper surface of the lower die frame 51, of the horizontal plate 63 is flush with the upper surface of the lower die frame 51, and the horizontal plate 63 is slidably connected in the sliding groove 512. The clamping groove 64 is correspondingly formed on one side of the lower surface of the upper die frame 52; half of the first vertical plate 61 protruding relative to the lower mold frame 51 and half of the second vertical plate 62 protruding relative to the lower mold frame 51 are combined and then are in clamping fit with the clamping groove 64, the first vertical plate 61 and the second vertical plate 62 are connected through bolts, the bolts sequentially and spirally penetrate through one side, opposite to the second vertical plate 62, of the first vertical plate 61 to be finally in threaded connection with the second vertical plate 62, and a counter bore (not shown in the figure) for placing the head of each bolt is formed in the first vertical plate 61, so that the head of each bolt is flush with the outer surface of the first vertical plate 61.

The side of the second vertical plate 62 facing away from the first vertical plate 61 is provided with a first guiding surface 621, the inner wall of the locking groove 64 is provided with a second guiding surface 641 parallel and opposite to the first guiding surface 621, and the first guiding surface 621 and the horizontal plate 63 are arranged at an obtuse angle.

In this embodiment, the degree of the included angle between the first guide surface 621 and the horizontal plate 63 is set to 120 degrees; in other examples, the included angle between the first guiding surface 621 and the horizontal plate 63 may be set to 110 degrees, 130 degrees, 140 degrees, 150 degrees, 160 degrees, 170 degrees or 180 degrees.

Referring to fig. 2 and 3, the mold for processing plastic products further includes a mounting groove 32 and an elastic member 33. The mounting groove 32 is opened on the side of the lower mold 3 facing the first vertical plate 61, and the mounting groove 32 is located between the two first grooves 31 on the lower mold 3. One end of the elastic member 33 is mounted on the inner wall of the mounting groove 32, and the other end of the elastic member 33 abuts on the side of the first vertical plate 61 facing the lower die 3. When the first vertical plate 61 is attached to the outer wall of the lower die 3, the core 41 is completely inserted into the cavity, and the elastic piece 33 is in a compressed state; when the core 41 is completely withdrawn from the cavity, one end of the elastic piece 33 far away from the inner wall of the mounting groove 32 abuts on one side of the first vertical plate 61 back to the second vertical plate 62, and the elastic piece 33 is free.

In the present embodiment, the elastic member 33 is provided as a spring; in other examples, the elastic member 33 may be a spring or a spring block.

Referring to fig. 2, the mold for processing plastic products further includes a fixing frame 7. The fixing frame 7 is installed at one side of the lower mold frame 51 communicating with the slide groove 512. The fixing frame 7 includes a first plate 71, a second plate 72, a side plate 73, and a fixing bolt 74.

The first plate 71 is arranged on the outer wall of one side of the lower die frame 51 communicated with the sliding groove 512, the first plate 71 is horizontally arranged, and one side of the first plate 71 close to the upper surface of the lower die frame 51 is flush with the inner wall of one side of the sliding groove 512 far away from the upper surface of the lower die frame 51. The second plate 72 is oppositely arranged at two sides of the first plate 71 close to the upper surface of the lower mold frame 51, the second plate 72 and the first plate 71 are integrally formed, the first plate 71 and the second plate 72 are combined to form a U-shaped groove (not shown in the figure), the groove is communicated with the sliding groove 512 and is in sliding connection with the fixing mechanism 6, the side plate 73 is arranged at one side of the first plate 71, which is back to the lower mold frame 51, the side plate 73 is attached to the first plate 71, and the side plate 73 is attached to the second plate 72. The fixing bolt 74 is threaded through the side plate 73, the second plate 72, and the lower mold 51 in this order, and the fixing bolt 74 is finally screwed to the side plate 73, the second plate 72, and the lower mold 51.

Referring to fig. 2, the mold for processing plastic products further includes a driving mechanism 8. The drive mechanism 8 is mounted on the side plate 73 and is used to drive the securing mechanism 6 to slide towards the lower die 3 to drive the core 41 into the cavity or to drive the securing mechanism 6 to slide away from the lower die 3 to drive the core 41 out of the cavity. After the fixing mechanism 6 completely slides to the groove from the sliding groove 512, the core 41 is gradually drawn out from the cavity, and the sum of the length of the core 41 and the length of the sliding block 42 is smaller than the sum of the length of the sliding groove 512 and the length of the groove.

Referring to fig. 2, the driving mechanism 8 includes a hydraulic rod 81, an air cylinder 82, a snap fit sleeve 83, and a snap fit groove 84. The cylinder 82 is arranged at the middle point of one side of the side plate 73, which is back to the first plate 71, and the piston end of the cylinder 82 is perpendicular to the side plate 73; one end of the hydraulic rod 81 is installed at the piston end of the cylinder 82, and the hydraulic rod 81 is horizontally disposed. The clamping sleeve 83 is convex, the clamping sleeve 83 is composed of two different circular ring bodies which are coaxial, and the larger circular ring body is far away from the piston end of the cylinder 82 relative to the smaller circular ring body; the clamping groove 84 is formed in one side, facing the side plate 73, of the horizontal plate 63, and the clamping groove 84 is in clamping fit with the clamping sleeve 83.

Sliding block 42 is installed in the one side of the vertical board 62 of first vertical board 61 second dorsad, and sliding block 42 is the equal fillet of four arriss departments of four prismatic table forms and sliding block 42, and the joint is installed on first vertical board 61 in bottom surface one side of sliding block 42, and the bottom surface of sliding block 42 is level and level with one side of the vertical board 62 of first vertical board 61 orientation second mutually, and the spout sets up with sliding block 42 looks adaptation. One side of the top surface of the slide block 42 is connected to the core 41, and the slide block 42 is integrally formed with the core 41.

A quadrangular frustum pyramid (Four prism) is a special trapezoid body (square and rectangle in an aspect ratio), namely, the bottom surface and the top surface are both square or rectangular, the side surfaces are all isosceles trapezoid bodies, and the area of the bottom surface is larger than that of the top surface.

The upper die frame 52 is provided with a through hole 9 communicated with the glue inlet on the upper die 2.

The implementation principle of the embodiment is as follows:

when the mold is closed, the first step: clamping the lower die 3 in a lower mounting groove 511 in the lower die frame 51, and then mounting the upper die 2 on the lower die 3 through corresponding die accessories; the second step is that: the driving mechanism 8 works, and the extension of the piston end of the cylinder 82 drives the horizontal plate 63, the first vertical plate 61 and the second vertical plate 62 to slide along the channel formed by the sliding chute and the groove towards the lower die 3, so as to drive the sliding block 42 and the mold core 41 to pass through the sliding chute until the mold core 41 is inserted into the mold cavity to form the cavity 11 on the handle 1; in this process, the elastic member 33 is pressed by the first vertical plate 61 to be retracted into the mounting groove 32 and in a compressed state; the third step: the upper mold frame 52 is mounted on the lower mold frame 51 through the corresponding mold fittings, in the process: the second guide surface 641 slides relatively along the first guide surface 621 until the first guide surface 621 completely coincides with and abuts against the second guide surface 641, and the protruding portion of the first vertical plate 61 and the protruding portion of the second vertical plate 62 are completely clamped in the clamping groove 64, and finally the mold clamping of the entire mold is completed.

When opening the mold, the first step: the upper mold frame 52 is removed; the second step is that: the upper die 2 is dismantled; the third step: the driving mechanism 8 works, the contraction of the piston end of the cylinder 82 drives the horizontal plate 63, the first vertical plate 61 and the second vertical plate 62 to slide back to the lower die 3 along the channel formed by the sliding groove and the groove, and further drives the sliding block 42 and the mold core 41 to be drawn out from the lower die 3 along the sliding groove until the mold core 41 is drawn out from the mold cavity, and the molded handle 1 can be taken out; in this process, the elastic member 33 drives the horizontal plate 63, the first vertical plate 61 and the second vertical plate 62 to slide under the self-resilience force, so that the speed of the horizontal plate 63, the first vertical plate 61 and the second vertical plate 62 to slide along the channel formed by the sliding groove and the groove is increased, and the core 41 is accelerated to be drawn out of the cavity.

The embodiment of this specific implementation mode is the preferred embodiment of the present invention, not limit according to this the utility model discloses a protection scope, so: all equivalent changes made according to the structure, shape and principle of the utility model are covered within the protection scope of the utility model.

Claims (8)

1. A mold for processing plastic products is characterized by comprising: the device comprises a lower die frame (51), an upper die frame (52), a sliding groove (512), a fixing mechanism (6), a fixing frame (7) and a driving mechanism (8);

a lower mounting groove (511) matched with the lower die (3) in a clamping way is formed in the lower die frame (51); an upper mounting groove (521) matched with the upper die (2) in a clamping way is formed in the upper die frame (52); defining one side of the lower die frame (51) provided with the lower mounting groove (511) as the upper surface of the lower die frame (51);

the sliding groove (512) is formed in the lower die frame (51) and communicated with the first groove (31) in the lower die (3) when the lower die (3) is fixed;

the fixing mechanism (6) is assembled in the sliding groove (512) in a sliding mode, and one side, facing the lower die (3), of the fixing mechanism (6) is connected with one side, back to the mold core (41), of the sliding block (42);

the fixed frame (7) is arranged on the outer wall of the lower die frame (51); the driving mechanism (8) is arranged on the fixing frame (7) and used for driving the fixing mechanism (6) to slide towards the lower die (3) so as to drive the core (41) to be inserted into the cavity or driving the fixing mechanism (6) to slide back to the lower die (3) so as to drive the core (41) to be drawn out of the cavity, and when the fixing mechanism (6) completely slides out of the sliding groove (512), the core (41) is drawn out of the cavity.

2. The mold for processing plastic products of claim 1, wherein the fixing mechanism (6) comprises a first vertical plate (61), a second vertical plate (62) and a horizontal plate (63);

the first vertical plate (61), the second vertical plate (62) and the horizontal plate (63) are assembled in the sliding groove (512) in a sliding mode, the second vertical plate (62) is arranged on one side, back to the lower die (3), of the first vertical plate (61), and the horizontal plate (63) is arranged on one side, back to the first vertical plate (61), of the second vertical plate (62);

the first vertical plate (61) and the second vertical plate (62) are arranged in a protruding mode relative to the upper surface of the lower die frame (51); the horizontal plate (63) is parallel and level with the upper surface of the lower die frame (51), a clamping groove (64) is formed in the upper die frame (52), and the first vertical plate (61) and the second vertical plate (62) are combined and then clamped to be matched with the clamping groove (64).

3. The mold for processing plastic products as claimed in claim 2, wherein a first guide surface (621) is formed on one side of the second vertical plate (62) opposite to the first vertical plate (61), a second guide surface (641) parallel to and opposite to the first guide surface (621) is formed on the clamping groove (64), and the first guide surface (621) and the horizontal plate (63) are arranged at an obtuse angle.

4. The mold for processing plastic products according to claim 1, wherein the fixing frame (7) comprises a first plate (71), a second plate (72), and a side plate (73); the first plate (71) is arranged on the outer wall of one side of the lower die frame (51) provided with the sliding groove (512), and the first plate (71) is flush with the inner wall of the sliding groove (512) far away from the upper surface of the lower die frame (51); the second plate (72) is arranged oppositely on two sides of the first plate (71), a groove communicated with the sliding groove (512) is formed between the second plate (72) and the first plate (71), the groove is matched with the fixing mechanism (6) in a sliding mode, and the side plate (73) is arranged on one side, back to the lower die frame (51), of the first plate (71).

5. The mold for processing plastic products according to claim 4, wherein the driving mechanism (8) comprises a hydraulic rod (81) and a cylinder (82);

the cylinder (82) is arranged on one side of the side plate (73) back to the first plate (71); one end of the hydraulic rod (81) is connected with the piston end of the cylinder (82), and the other end of the hydraulic rod (81) is connected with one side of the fixing mechanism (6) back to the lower die (3).

6. The mold for processing plastic products as claimed in claim 2, wherein the sliding block (42) is disposed on a side of the first vertical plate (61) facing away from the second vertical plate (62), the sliding block (42) is in a quadrangular frustum shape, four edges of the sliding block (42) are rounded, a bottom surface of the sliding block (42) is disposed on the first vertical plate (61), and the sliding groove is disposed in a manner of being matched with the sliding block (42).

7. The mold for processing plastic products of claim 5, further comprising a fixing bolt (74), wherein the fixing bolt (74) is sequentially screwed on the side plate (73), the second plate (72) and the lower mold frame (51).

8. The mold for processing plastic products as claimed in claim 2, wherein a mounting groove (32) is formed in one side of the lower mold (3) facing the first vertical plate (61), an elastic member (33) is disposed in the mounting groove (32), and the elastic member (33) is in a compressed state when the first vertical plate (61) is attached to the outer wall of the lower mold (3).