CN113619031A

CN113619031A - Plastic mold capable of cutting off excess materials and screening out defective products

Info

Publication number: CN113619031A
Application number: CN202110904434.4A
Authority: CN
Inventors: 张莹
Original assignee: Nanjing Qipenglong Mechanical Equipment Co ltd
Current assignee: Nanjing Qipenglong Mechanical Equipment Co ltd
Priority date: 2021-08-06
Filing date: 2021-08-06
Publication date: 2021-11-09

Abstract

The invention discloses a plastic mold capable of cutting off excess materials and screening defective products, which comprises a body and a transmission cavity arranged on the right side in the body, wherein a sliding cavity is arranged on the top of the right side of the body, a sliding cavity is arranged in the body below the sliding cavity, a rotating cavity is arranged in a sliding female mold on the left side of the sliding cavity, the sliding female mold is arranged on the top of the body in a left-right sliding manner, an injection block is fixedly arranged in the sliding female mold, excess materials are formed in the injection block, and a double-sided rack is arranged in the rotating cavity on the right side of the sliding female mold in a left-right sliding manner. The process is convenient and fast, and the waste of energy is effectively avoided, so that the cost is reduced, and convenience is brought for people.

Description

Plastic mold capable of cutting off excess materials and screening out defective products

Technical Field

The invention relates to the field of plastic molds, in particular to a plastic mold capable of cutting off excess materials and screening defective products.

Background

Along with the continuous development of production technology, the continuous improvement of the technique of the trade of moulding plastics, the production efficiency of moulding plastics constantly improves, but the process of the excision runner clout after moulding plastics still is artifical the completion mostly, because of people excision runner clout, the work degree of difficulty is big, the human cost is high, lead to the inefficiency of this process, lead to holistic production efficiency lower, cause too much manufacturing cost, there is very much fashioned material weight not enough among the injection moulding process, can not reach the requirement, so need now one kind can with the plastic mold that the clout excision of runner department and can select the substandard product that weight is not enough.

Disclosure of Invention

The invention aims to solve the technical problem of providing a plastic mold capable of cutting off excess materials and screening out defective products, and the plastic mold can overcome the problems.

The technical scheme adopted by the invention for solving the technical problems is as follows: a plastic mold capable of cutting off excess materials and screening out inferior products comprises a body and a transmission cavity arranged on the right side in the body, wherein a sliding cavity is arranged at the top of the right side of the body, a sliding cavity is arranged in the body below the sliding cavity, a rotating cavity is arranged in a sliding female mold on the left side of the sliding cavity, the sliding female mold is arranged at the top of the body in a left-right sliding manner, an injection block is fixedly arranged in the sliding female mold, excess materials are formed in the injection block, a double-sided rack is arranged in the rotating cavity on the right side of the sliding female mold in a left-right sliding manner, a cutting device is arranged on the double-sided rack, and the cutting device is used for cutting off the excess materials after injection molding; the right side of the sliding female die is provided with a top block which can slide up and down in the machine body, the top block is elastically connected to the machine body through a top block spring, a first motor is fixedly arranged above the top block spring in the machine body, a first motor shaft is rotatably arranged in the first motor, the right end of the first motor shaft is fixedly connected with a first bevel gear, the first bevel gear is meshed with a second bevel gear, the second bevel gear is fixedly connected to a first gear shaft, the first gear shaft is rotatably connected to the machine body, a first gear is fixedly connected to the first gear shaft behind the second bevel gear, the right side of the first gear is meshed with a second gear, the second gear is fixedly connected to a second gear shaft, the second gear shaft is rotatably connected to the machine body, and a first incomplete gear is fixedly connected to the front of the second gear in the middle of the second gear shaft, the right side of the second gear is meshed with a third gear, the third gear is fixedly connected to a third gear shaft, the third gear shaft is rotatably connected to the machine body, a second incomplete gear is fixedly connected to the third gear shaft in front of the third gear, the lower portions of the first incomplete gear and the second incomplete gear are respectively meshed with a fourth gear, the fourth gear is fixedly connected to a fourth gear shaft, the fourth gear shaft is rotatably connected to the machine body, the lower portion of the fourth gear is meshed with the double-sided rack, a female die is fixedly arranged in the machine body below the sliding female die, a molding material is injected in the female die, a male die is arranged in the machine body below the female die in a manner of sliding up and down, a core is fixedly arranged in the male die, a male die holder is fixedly connected below the male die, and a second motor is fixedly arranged at the bottom of the right side in the machine body, a second motor shaft is rotatably arranged in the second motor, a third bevel gear is fixedly connected to the second motor shaft, the third bevel gear is meshed with a fourth bevel gear, and a mold opening device is arranged on the fourth bevel gear and used for opening the mold of the equipment; the male die holder is internally provided with internal threads, the male die holder is in threaded connection with an ejection screw through the internal threads, and the ejection screw is provided with an ejection device which is used for ejecting the material molded by the equipment; and a qualified bin is fixedly arranged in the machine body on the left side of the base, a screening and recycling device is arranged on the qualified bin, and the screening and recycling device is used for screening and recycling defective products of materials formed by plastic molds.

Further, the cutting device comprises the double-sided rack, a limiting block is fixedly connected to the left end of the double-sided rack, the limiting block is used for limiting the double-sided rack, the lower portion of the double-sided rack is meshed with a fifth gear, the fifth gear is fixedly connected to a fifth gear shaft, the fifth gear shaft is rotatably connected to the sliding female die, the lower portion of the fifth gear is meshed with a sixth gear, the sixth gear is fixedly connected to a sixth gear shaft, the sixth gear shaft is rotatably connected to the sliding female die, a sliding rod is fixedly connected to the sixth gear, the sliding rod can slide in the upper portion of a gear sliding groove, the gear sliding groove is rotatably connected to a gear sliding groove shaft, the gear sliding groove shaft is fixedly connected to the sliding female die, the lower portion of the gear sliding groove is meshed with a rack knife handle, and the rack knife handle can slide left and right at the bottom of the rotating cavity, the left end of the rack tool holder is fixedly connected with a cutting knife.

Further, the die sinking device comprises a fourth bevel gear, the fourth bevel gear is fixedly connected to a seventh gear shaft, the seventh gear shaft is rotatably connected to the machine body, a seventh gear is fixedly connected to the seventh gear shaft behind the fourth bevel gear, the lower side of the seventh gear is meshed with an eighth gear, the eighth gear is fixedly connected to an eighth gear shaft, the eighth gear shaft is rotatably connected to the machine body, a third incomplete gear is fixedly connected to the eighth gear shaft in front of the eighth gear, the left side of the third incomplete gear is meshed with a die sinking rack, and the die sinking rack is fixedly connected to the right end of the male die holder and can slide up and down along with the male die holder.

Further, ejecting device includes ejecting screw, ejecting screw top butt is in the molding material bottom, the gliding setting from top to bottom in ejecting screw top is in the public mould, gliding setting from top to bottom in ejecting screw below is in the base, base fixed connection be in public die holder bottom, fixedly connected with ejecting gear on the ejecting screw, ejecting gear and rack plate meshing, rack plate gliding setting from side to side is in public die holder with between the base, the base bottom is connected through base spring elastic connection on the fuselage.

Furthermore, the screening and recycling device comprises the qualified bin, a defective bin is fixedly arranged in the machine body on the left side of the qualified bin, a defective heater is fixedly arranged in the machine body at the bottom of the defective bin, a ninth gear is fixedly connected to the shaft of the second motor in the transmission cavity, a fifth bevel gear is fixedly connected to the top end of the shaft of the second motor, the fifth bevel gear is meshed with a sixth bevel gear, the sixth bevel gear is fixedly connected to the right end of the fan shaft, and a fan is fixedly connected to the left end of the fan shaft.

The invention has the beneficial effects that: the utility model provides a clout excision and can be with the plastic mold that the substandard product was selected, equipment structure is simple, convenient operation, can be automatically with the clout excision and retrieve after the injection moulding, mutually support and do not influence between each process, can select and retrieve the substandard product in the plastics finished product after the shaping, process convenient and fast, the effectual waste of having avoided the energy to reduce the cost and for providing convenience.

Drawings

In order to more clearly illustrate the embodiments of the invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the invention, and it is obvious for those skilled in the art that other drawings can be obtained based on these drawings without creative efforts.

The invention is further illustrated with reference to the following figures and examples.

Fig. 1 is a schematic view showing an overall structure of a plastic mold in which a surplus material is cut and defective products can be screened according to the present invention.

Fig. 2 is a schematic view of the structure a-a in fig. 1.

Fig. 3 is a schematic diagram of the structure B in fig. 1.

Fig. 4 is a schematic diagram of the structure C in fig. 1.

Detailed Description

The invention will now be described in detail with reference to fig. 1-4, wherein for ease of description the orientations described hereinafter are now defined as follows: the up, down, left, right, and front-back directions described below correspond to the up, down, left, right, and front-back directions in the projection relationship of fig. 1 itself.

The plastic mold capable of cutting off the excess material and screening the defective products comprises a body 11 and a transmission cavity 91 arranged on the right side in the body 11, wherein a sliding cavity 92 is arranged at the top of the right side of the body 11, a sliding cavity 93 is arranged in the body 11 below the sliding cavity 92, a rotating cavity 94 is arranged in a sliding female mold 12 on the left side of the sliding cavity 92, the sliding female mold 12 is arranged at the top of the body 11 in a left-right sliding manner, an injection block 53 is fixedly arranged in the sliding female mold 12, the excess material 32 is molded in the injection block 53, a double-sided rack 63 is arranged on the right side of the sliding female mold 12 in the rotating cavity 94 in a left-right sliding manner, a cutting device 101 is arranged on the double-sided rack 63, and the cutting device 101 is used for cutting off the excess material after injection molding; the right side of the sliding female die 12 is provided with a top block 33 which can slide up and down in the machine body 11, the top block 33 is elastically connected to the machine body 11 through a top block spring 34, a first motor 35 is fixedly arranged in the machine body 11 above the top block spring 34, a first motor shaft 78 is rotatably arranged in the first motor 35, the right end of the first motor shaft 78 is fixedly connected with a first bevel gear 79, the first bevel gear 79 is meshed with a second bevel gear 76, the second bevel gear 76 is fixedly connected to a first gear shaft 77, the first gear shaft 77 is rotatably connected to the machine body 11, a first gear 75 is fixedly connected to the first gear shaft 77 behind the second bevel gear 76, the right side of the first gear 75 is meshed with a second gear 67, the second gear 67 is fixedly connected to the second gear shaft 68, and the second gear shaft 68 is rotatably connected to the machine body 11, the second gear shaft 68 is fixedly connected with a first incomplete gear 69 in front of the second gear 67, the right side of the second gear 67 is meshed with a third gear 72, the third gear 72 is fixedly connected to a third gear shaft 74, the third gear shaft 74 is rotatably connected to the machine body 11, the third gear shaft 74 is fixedly connected with a second incomplete gear 73 in front of the third gear 72, the lower parts of the first incomplete gear 69 and the second incomplete gear 73 are respectively meshed with a fourth gear 70, the fourth gear 70 is fixedly connected to a fourth gear shaft 71, the fourth gear shaft 71 is rotatably connected to the machine body 11, the lower part of the fourth gear 70 is meshed with the double-sided rack 63, a master die 14 is fixedly arranged in the machine body 11 below the sliding master die 12, and a molding material 13 is injected in the master die 14, a male die 16 is arranged below the female die 14 and can slide up and down in the machine body 11, a core 15 is fixedly arranged in the male die 16, a male die holder 17 is fixedly connected below the male die 16, a second motor 45 is fixedly arranged at the bottom of the right side in the machine body 11, a second motor shaft 40 is rotatably arranged in the second motor 45, a third bevel gear 43 is fixedly connected to the second motor shaft 40, the third bevel gear 43 is meshed with a fourth bevel gear 50, a die opening device 102 is arranged on the fourth bevel gear 50, and the die opening device 102 is used for opening the die of the equipment; an internal thread 18 is arranged in the male die holder 17, the male die holder 17 is in threaded connection with an ejection screw 19 through the internal thread 18, an ejection device 103 is arranged on the ejection screw 19, and the ejection device 103 is used for ejecting the material molded by the equipment; a qualified bin 22 is fixedly arranged in the machine body 11 on the left side of the base 21, a screening and recycling device 104 is arranged on the qualified bin 22, and the screening and recycling device 104 is used for screening and recycling inferior-quality products of materials formed by plastic molds.

Advantageously, the cutting device 101 comprises the double-sided rack 63, a limit block 64 is fixedly connected to the left end of the double-sided rack 63, the limit block 64 is used for limiting the double-sided rack 63, the lower part of the double-sided rack 63 is meshed with a fifth gear 62, the fifth gear 62 is fixedly connected to a fifth gear shaft 61, the fifth gear shaft 61 is rotatably connected to the sliding female die 12, the lower part of the fifth gear 62 is meshed with a sixth gear 60, the sixth gear 60 is fixedly connected to a sixth gear shaft 59, the sixth gear shaft 59 is rotatably connected to the sliding female die 12, a slide bar 58 is fixedly connected to the sixth gear 60, the slide bar 58 can slide in the upper part of a gear slide groove 56, the gear slide groove 56 is rotatably connected to a gear slide groove shaft 57, the gear slide groove shaft 57 is fixedly connected to the sliding female die 12, the lower part of the gear slide groove 56 is meshed with a rack handle 54, the rack cutter handle 54 is arranged at the bottom of the rotating cavity 94 in a left-right sliding mode, and the cutting knife 55 is fixedly connected to the left end of the rack cutter handle 54.

Advantageously, the mold opening device 102 includes the fourth bevel gear 50, the fourth bevel gear 50 is fixedly connected to a seventh gear shaft 48, the seventh gear shaft 48 is rotatably connected to the machine body 11, a seventh gear 49 is fixedly connected to the seventh gear shaft 48 behind the fourth bevel gear 50, the seventh gear 49 is engaged with an eighth gear 46 below, the eighth gear 46 is fixedly connected to an eighth gear shaft 47, the eighth gear shaft 47 is rotatably connected to the machine body 11, a third incomplete gear 44 is fixedly connected to the eighth gear shaft 47 in front of the eighth gear 46, the left side of the third incomplete gear 44 is engaged with the mold opening rack 26, and the mold opening rack 26 is fixedly connected to the right end of the male mold base 17 and can slide up and down with the male mold base 17.

Advantageously, the ejection device 103 includes the ejection screw 19, the top of the ejection screw 19 abuts against the bottom of the molding material 13, the top end of the ejection screw 19 is slidably disposed in the male mold 16, the bottom of the ejection screw 19 is slidably disposed in the base 21, the base 21 is fixedly connected to the bottom of the male mold base 17, the ejection gear 20 is fixedly connected to the ejection screw 19, the ejection gear 20 is engaged with the rack plate 41, the rack plate 41 is slidably disposed between the male mold base 17 and the base 21, and the bottom end of the base 21 is elastically connected to the machine body 11 through the base spring 25.

Beneficially, the screening and recycling device 104 includes the qualified bin 22, a defective bin 23 is fixedly disposed in the machine body 11 on the left side of the qualified bin 22, a defective heater 24 is fixedly disposed in the machine body 11 at the bottom of the defective bin 23, a ninth gear 42 is fixedly connected to the second motor shaft 40 in the transmission cavity 91, a fifth bevel gear 39 is fixedly connected to the top end of the second motor shaft 40, the fifth bevel gear 39 is meshed with a sixth bevel gear 37, the sixth bevel gear 37 is fixedly connected to the right end of the fan shaft 38, and the fan 28 is fixedly connected to the left end of the fan shaft 38.

Sequence of mechanical actions of the whole device:

when the device of the invention works, liquid plastic is poured into the pouring block 53, after the liquid plastic is molded in the mold, the first motor 35 is started, the first bevel gear 79 on the first motor shaft 78 and the first motor shaft 78 rotates, the first bevel gear 79 drives the second bevel gear 76 to rotate, the second bevel gear 76 drives the first gear shaft 77 and the first gear 75 on the first gear shaft 77 to rotate, the first gear 75 drives the second gear 67 to rotate, the second gear 67 drives the second gear shaft 68 and the first incomplete gear 69 on the second gear shaft 68 to rotate, the second gear 67 drives the third gear 72 to rotate, the third gear 72 drives the third gear shaft 74 and the second incomplete gear 73 on the third gear shaft 74 to rotate, the first incomplete gear 69 and the third gear 72 drive the fourth gear 70 to reciprocate, the fourth gear 70 drives the double-sided rack 63 to slide left and right in a reciprocating manner, when the double-sided rack 63 slides rightwards, the double-sided rack 63 firstly slides rightwards in the sliding female die 12, the double-sided rack 63 drives the fifth gear 62 to rotate, the fifth gear 62 drives the sixth gear 60 to rotate, the slide rod 58 on the sixth gear 60 slides in the gear slide groove 56 to drive the gear slide groove 56 to rotate around the gear slide groove shaft 57 in a reciprocating manner, the gear slide groove 56 drives the rack cutter handle 54 to slide leftwards and rightwards in a reciprocating manner, the rack cutter handle 54 drives the cutter 55 to slide leftwards and reciprocally, the excess material 32 and the molding material 13 are cut off when the cutter 55 slides leftwards, the double-sided rack 63 continuously slides rightwards, the limiting block 64 abuts against the sliding female die 12 to drive the sliding female die 12 to slide rightwards, the ejector block 33 is ejected upwards to press the ejector block spring 34, when the excess material 32 in the sliding female die 12 slides rightwards to the position of the ejector block 33, the ejector block 33 slides downwards under the action of the ejector block spring 34, the excess material 32 is ejected to the inclined sliding table 31 to the inclined sliding table 31 and falls into the excess material bin 30 along the inclined sliding table 31, then the second motor 45 is started, the second motor shaft 40 and the third bevel gear 43 on the second motor shaft 40 rotate to drive the fourth bevel gear 50 to rotate, the fourth bevel gear 50 drives the seventh gear shaft 48 and the seventh gear 49 on the seventh gear shaft 48 to rotate, the seventh gear 49 drives the eighth gear 46 to rotate, the eighth gear 46 drives the eighth gear shaft 47 and the third incomplete gear 44 on the eighth gear shaft 47 to rotate, the third incomplete gear 44 rotates to drive the mold opening rack 26 to slide up and down in a reciprocating manner, the mold opening rack 26 drives the male mold 16, the male mold 17 and the base 21 to slide up and down in a reciprocating manner, when the mold opening rack 26 slides down, the base 21 presses the base spring 25 to realize the mold opening action, the rack plate 41 slides down along with the male mold seat 17 and the base 21 until the ninth gear 42 is meshed with the rack plate 41, the ninth gear 42 on the second motor shaft 40 rotates to drive the rack plate 41 to slide rightwards, the rack plate 41 drives the ejection gear 20 to rotate, the ejection gear 20 drives the ejection screw rod 19 to rotate, because the ejection screw 19 is in threaded connection with the male die holder 17 through the internal thread 18, the male die holder 17 fixes the rotation of the ejection screw 19 to drive the ejection screw to slide upwards to eject the molding material 13 on the mold core 15, the fifth bevel gear 39 on the second motor shaft 40 rotates to drive the sixth bevel gear 37 to rotate, the sixth bevel gear 37 drives the fan shaft 38 and the fan 28 on the fan shaft 38 to rotate, the fan 28 blows off the ejected molding material 13 to the left, when the molding material 13 is qualified, the molding material falls into the qualified bin 22 with a larger mass under the action of gravity, and when the molding material 13 is not qualified, the molding material falls into the defective bin 23 with a lower mass under the action of gravity, therefore, the screening of the defective products is realized, and finally the defective product heater 24 and the defective product heater 29 are started to melt, recycle and reuse the defective products and the defective products.

The above description is only an embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that are not thought of through the inventive work should be included in the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope defined by the claims.

Claims

1. The utility model provides a clout excision can be with the plastic mold that the substandard product was selected, include the fuselage and the transmission chamber that the right side was provided with in the fuselage, its characterized in that: the injection molding machine is characterized in that a sliding cavity is arranged at the top of the right side of the machine body, a sliding cavity is arranged in the machine body below the sliding cavity, a rotating cavity is arranged in a sliding female die at the left side of the sliding cavity, the sliding female die is arranged at the top of the machine body in a left-right sliding manner, an injection block is fixedly arranged in the sliding female die, excess materials are molded in the injection block, a double-sided rack is arranged in the rotating cavity at the right side of the sliding female die in a left-right sliding manner, a cutting device is arranged on the double-sided rack, and the cutting device is used for cutting off the excess materials after injection molding; the right side of the sliding female die is provided with a top block which can slide up and down in the machine body, the top block is elastically connected to the machine body through a top block spring, a first motor is fixedly arranged above the top block spring in the machine body, a first motor shaft is rotatably arranged in the first motor, the right end of the first motor shaft is fixedly connected with a first bevel gear, the first bevel gear is meshed with a second bevel gear, the second bevel gear is fixedly connected to a first gear shaft, the first gear shaft is rotatably connected to the machine body, a first gear is fixedly connected to the first gear shaft behind the second bevel gear, the right side of the first gear is meshed with a second gear, the second gear is fixedly connected to a second gear shaft, the second gear shaft is rotatably connected to the machine body, and a first incomplete gear is fixedly connected to the front of the second gear in the middle of the second gear shaft, the right side of the second gear is meshed with a third gear, the third gear is fixedly connected to a third gear shaft, the third gear shaft is rotatably connected to the machine body, a second incomplete gear is fixedly connected to the third gear shaft in front of the third gear, the lower portions of the first incomplete gear and the second incomplete gear are respectively meshed with a fourth gear, the fourth gear is fixedly connected to a fourth gear shaft, the fourth gear shaft is rotatably connected to the machine body, the lower portion of the fourth gear is meshed with the double-sided rack, a female die is fixedly arranged in the machine body below the sliding female die, a molding material is injected in the female die, a male die is arranged in the machine body below the female die in a manner of sliding up and down, a core is fixedly arranged in the male die, a male die holder is fixedly connected below the male die, and a second motor is fixedly arranged at the bottom of the right side in the machine body, a second motor shaft is rotatably arranged in the second motor, a third bevel gear is fixedly connected to the second motor shaft, the third bevel gear is meshed with a fourth bevel gear, and a mold opening device is arranged on the fourth bevel gear and used for opening the mold of the equipment; the male die holder is internally provided with internal threads, the male die holder is in threaded connection with an ejection screw through the internal threads, and the ejection screw is provided with an ejection device which is used for ejecting the material molded by the equipment; and a qualified bin is fixedly arranged in the machine body on the left side of the base, a screening and recycling device is arranged on the qualified bin, and the screening and recycling device is used for screening and recycling defective products of materials formed by plastic molds.

2. The plastic mold according to claim 1, wherein the plastic mold is cut off and defective products can be screened out, and wherein: the cutting device comprises the double-sided rack, a limiting block is fixedly connected to the left end of the double-sided rack, the limiting block is used for limiting the double-sided rack, the lower portion of the double-sided rack is meshed with a fifth gear, the fifth gear is fixedly connected to a fifth gear shaft, the fifth gear shaft is rotatably connected to the sliding female die, the lower portion of the fifth gear is meshed with a sixth gear, the sixth gear is fixedly connected to a sixth gear shaft, the sixth gear shaft is rotatably connected to the sliding female die, a sliding rod is fixedly connected to the sixth gear, the sliding rod can slide in the upper portion of a gear sliding groove, the gear sliding groove is rotatably connected to a gear sliding groove shaft, the gear sliding groove shaft is fixedly connected to the sliding female die, the lower portion of the gear sliding groove is meshed with a rack knife handle, and the rack knife handle can slide left and right at the bottom of the rotating cavity, the left end of the rack tool holder is fixedly connected with a cutting knife.

3. The plastic mold according to claim 1, wherein the plastic mold is cut off and defective products can be screened out, and wherein: the die sinking device comprises a fourth bevel gear, the fourth bevel gear is fixedly connected to a seventh gear shaft, the seventh gear shaft is rotatably connected to the machine body, a seventh gear is fixedly connected to the seventh gear shaft behind the fourth bevel gear, the lower side of the seventh gear is meshed with an eighth gear, the eighth gear is fixedly connected to an eighth gear shaft, the eighth gear shaft is rotatably connected to the machine body, a third incomplete gear is fixedly connected to the eighth gear shaft in front of the eighth gear, the left side of the third incomplete gear is meshed with a die sinking rack, and the die sinking rack is fixedly connected to the right end of the male die holder and can slide up and down along with the male die holder.

4. The plastic mold according to claim 1, wherein the plastic mold is cut off and defective products can be screened out, and wherein: the ejection device comprises an ejection screw, the top of the ejection screw is abutted against the bottom of a molding material, the top of the ejection screw is slidably arranged in the male die up and down, the lower part of the ejection screw is slidably arranged in the base up and down, the base is fixedly connected with the bottom of the male die base, an ejection gear is fixedly connected on the ejection screw, the ejection gear is meshed with a rack plate, the rack plate is slidably arranged between the male die base and the base left and right, and the bottom of the base is elastically connected with the machine body through a base spring.

5. The plastic mold according to claim 1, wherein the plastic mold is cut off and defective products can be screened out, and wherein: the screening and recycling device comprises the qualified bin, a defective bin is fixedly arranged in the machine body on the left side of the qualified bin, a defective heater is fixedly arranged in the machine body at the bottom of the defective bin, a ninth gear is fixedly connected to the shaft of the second motor in the transmission cavity, a fifth bevel gear is fixedly connected to the top end of the shaft of the second motor, the fifth bevel gear is meshed with a sixth bevel gear, the sixth bevel gear is fixedly connected to the right end of a fan shaft, and a fan is fixedly connected to the left end of the fan shaft.