A medical injection mold that is easy to demould

Abstract

The present invention relates to the technical field of medical injection molds, and in particular to a medical injection mold that is easy to demold, comprising a working frame, a fixed column and a discharge plate, a fixed column is fixedly installed on the top of the working frame at the center of one side of a lower mold base by bolts, a fixed cylinder is movably connected to the outer periphery of the fixed column, one side of the fixed cylinder is connected to an upper mold base that matches the lower mold base through a conical block, a heat sink for cooling and blowing air to the injection molded product is fixedly installed at the top of one end of the lower mold base by bolts, and a cleaning seat for cleaning and blowing air to the inside of the lower mold base is installed at both ends of one side of the top of the heat sink through connecting rods. The present invention drives the movable disk to move up and down in the fixed column through the fixed cylinder, and the gas is compressed through the cleaning nozzles and the heat sink nozzles on the cleaning seat and the heat sink, so as to clean the impurities remaining after the lower mold base is demolded and dissipate the heat of the product, thereby improving the quality of the product, having a simple structure, and realizing the linkage of cleaning and heat dissipation.

Description

Technical Field

[0001] The invention relates to the technical field of medical injection molds, in particular to a medical injection mold that is easy to demould. Background Art

[0002] Injection molding, also known as injection molding, is a molding method that combines injection and molding. The advantages of the injection molding method are fast production speed, high efficiency, automated operation, a wide variety of colors and patterns, shapes from simple to complex, and sizes from large to small. Injection molding is suitable for mass production and molding processing fields such as products with complex shapes. At a certain temperature, the completely molten plastic material is stirred by a screw, injected into the mold cavity with high pressure, and cooled and solidified to obtain a molded product.

[0003] At present, it is difficult to discharge medical injection molds after molding. The plastic structure of medical injection molded parts makes the product relatively light, which will cause it to get stuck in the lower mold base after demolding and cannot be smoothly removed. Manual material removal is time-consuming and labor-intensive, and the material removal efficiency is relatively low. It is necessary to use tools to clamp the product around, which is easy to cause damage to the medical product. In addition, the product is cooled in the mold base after demolding, but the top of the product is not cooled by air after demolding, and impurities or burrs are left in the lower mold base after demolding, which will affect the next injection molding process and affect the quality of subsequent products. Summary of the invention

[0004] In order to overcome the deficiencies of the prior art, the present invention provides a medical injection mold that is easy to demould.

[0005] To solve the above technical problems, the present invention provides the following technical solutions: comprising a working frame, a fixing column arranged on one end of the top of the working frame and a discharging plate arranged on the other end of the top of the working frame, a lower mold base is fixedly installed at the center of the top of the working frame by bolts, the fixing column is fixedly installed at the center of one side of the lower mold base on the top of the working frame by bolts, a fixing cylinder is movably connected through the periphery of the fixing column, one side of the fixing cylinder is connected to an upper mold base that matches the lower mold base through a conical block, a heat sink for cooling and blowing air for injection molded products is fixedly installed at the top of one end of the lower mold base by bolts, cleaning seats for cleaning and blowing air inside the lower mold base are installed by connecting rods at both ends of one side of the top of the heat sink, a reciprocating assembly for working the heat sink and the cleaning seat is arranged in the fixing column, and the reciprocating assembly comprises:

[0006] A cleaning cylinder for blowing air to the cleaning seat, the cleaning cylinder is fixedly installed at the center of the inner bottom end of the fixing column by bolts, a driving box is fixedly installed at the outer periphery of the fixing cylinder by bolts, a servo motor is connected to the top of one side of the driving box by a motor plate, a rotating shaft is connected to the output end of the servo motor, a worm is installed on the rotating shaft in the driving box, rotating rods are connected to the two ends of the driving box by bearings, and a worm wheel movably meshed with the worm is fixedly installed at one end of the rotating rod by bolts;

[0007] A heat dissipation cylinder for blowing air to the heat dissipation seat, the heat dissipation cylinder is fixedly installed at the center of the inner top of the fixing column by bolts, a rotating gear is fixedly installed on the rotating rod by bolts on the other side of the worm gear, a rack plate movably meshed with the rotating gear is fixedly installed on one side of the outer side of the fixing column by bolts, and the rack plate moves in a rack groove provided on the inner side of the fixing cylinder;

[0008] The fixing column is provided with fixing grooves on both sides, and fixing plates are fixedly installed at the centers of both ends of the fixing cylinder by bolts, and the fixing plates movably penetrate the fixing grooves, and a movable disk is fixedly installed in the fixing column by bolts between the top ends of the fixing plates, and a heat dissipation piston rod movably extending to the heat dissipation cylinder is fixedly installed at the center of the top end of the movable disk by bolts, and a cleaning piston rod movably extending to the cleaning cylinder is fixedly installed at the center of the bottom end of the movable disk by bolts;

[0009] The top of the working frame is connected to the discharging plate through a supporting frame, a movable frame is arranged at the top of one side of the discharging plate, a hydraulic telescopic pump is fixedly installed on the discharging plate on one side inside the movable frame through bolts, a discharging rotating shaft is connected to the discharging rotating shaft at the top center through the bearing, a discharging gear is fixedly installed on the discharging rotating shaft at the outer periphery of one end of the movable frame through bolts, a discharging rotating plate is fixedly installed on the other end of the discharging rotating shaft through bolts, one end of the top of the discharging rotating plate is movably connected to a lifting plate through a rotating shaft, and a pneumatic suction cup for adsorbing the product is arranged at the bottom of the lifting plate.

[0010] As a preferred technical solution of the present invention, a first limit seat is fixedly installed on one side of the discharging plate in the movable frame by bolts, a first limit groove is opened on the top of the first limit seat, a first limit block is slidably connected in the first limit groove on the first limit seat, the top of the first limit block is connected to a discharging tooth plate meshing with the discharging gear, and the top of the hydraulic telescopic pump is connected to the bottom center of the discharging tooth plate, one end of the rotating shaft is connected to the driving box through the bearing, a rotating groove is opened on one side of the fixed cylinder, and the rotating gear is movably meshed with the rack plate through the rotating groove, a limiting ring is fixedly installed at both ends of the rack plate on the outer periphery of the fixed column by bolts, a limiting rod is fixedly installed at both sides between the limiting rings by bolts, and the fixed cylinder movably passes through the limiting rod.

[0011] As a preferred technical solution of the present invention, a second limit seat is fixedly installed at the bottom of the other side of the discharge plate by bolts, and second limit grooves are provided at both ends of the second limit seat. A second limit block is slidably connected to the second limit groove on the second limit seat, and a limit frame sliding on the outside of the second limit seat is fixedly installed by bolts between the tops of the second limit blocks, and a lifting movable hole matching the size of the lifting plate is provided at the center of one side of the limit frame. A bottom plate is fixedly installed at the bottom of the lifting plate by bolts, and a base frame is fixedly installed at both ends of the bottom of the bottom plate by bolts, and a plurality of pneumatic suction cups are evenly installed at both ends of the bottom of the base frame by bolts, and the pneumatic suction cups are movable at the top center of the lower mold base.

[0012] As a preferred technical solution of the present invention, the cleaning seat is an inclined structure, and a plurality of cleaning nozzles with an inclined structure are evenly installed on one side of the cleaning seat, a first conduit is connected to one side of the top of the cleaning seat, a plurality of heat dissipation nozzles are evenly installed on one side of the heat dissipation seat, and a second conduit is connected to the other side of the heat dissipation seat, a U-shaped connecting pipe is connected to one end of the top of the heat dissipation tube, the top of the U-shaped connecting pipe extends through and extends to the outside of the top of the fixed column, and the bottom of the U-shaped connecting pipe is connected to the second conduit through a telescopic conduit, and an L-shaped conduit is connected to one end of the bottom of the cleaning tube, the top of the L-shaped conduit extends through and extends to the outside of the bottom of the fixed column, and the top of the L-shaped conduit is connected to the first conduit through the telescopic conduit.

[0013] As a preferred technical solution of the present invention, the interior of the cleaning cylinder is movably connected with a cleaning piston plate, the bottom end of the cleaning piston rod passes through the cleaning cylinder and is installed on the cleaning piston plate, the interior of the heat dissipation cylinder is movably connected with a heat dissipation piston plate, the top end of the heat dissipation piston rod passes through the heat dissipation cylinder and is installed on the heat dissipation piston plate, the top side of the heat dissipation cylinder and the bottom side of the cleaning cylinder are both connected with air pipes, and the air pipe, U-shaped connecting pipe and L-shaped conduit are all provided with one-way valves.

[0014] Compared with the prior art, the present invention can achieve the following beneficial effects:

[0015] 1. Through the rotational motion, the rotating gear realizes the up and down stable meshing motion with the rack plate in the driving box, and the fixed cylinder on the outer periphery of the fixed cylinder is stably lifted and lowered on the rack plate, thereby driving the upper die base to stably enter the lower die base, without generating mold closing impact, protecting the upper and lower die bases, and having a simple and stable structure.

[0016] 2. The servo motor on the drive box drives the worm on the rotating shaft to move stably. The meshing of the worm drives the rotating rod on the worm wheel to rotate synchronously, thereby driving the meshing activity between the rotating gear and the half gear, so as to achieve a relatively stable mold clamping process without shaking, which will cause unstable mold clamping and affect product quality. The meshing of the worm wheel and the worm, and the meshing of the rack plate and the rotating gear, can achieve a stable clamping effect.

[0017] 3. The movable plate is driven to move upward inside the fixed column through the fixed cylinder, so that the upper mold base and the lower mold base are demolded, and the heat dissipation piston plate in the heat dissipation cylinder is driven to rise through the heat dissipation piston rod. The heat dissipation piston plate blows the gas in the heat dissipation cylinder to the heat dissipation nozzle on the heat dissipation seat through the U-shaped connecting pipe, the telescopic conduit and the second conduit, and the top of the demolded product is blown to dissipate heat.

[0018] 4. The movable disk is driven to move downward in the fixed column through the fixed cylinder, so that the cleaning piston plate under the cleaning piston rod compresses the gas in the cleaning cylinder. The gas passes through the L-shaped conduit, the telescopic conduit and the second conduit to press the cleaning nozzle on the cleaning seat to clean the impurities remaining after the lower mold seat is demoulded, thereby improving the quality of the product. The structure is simple, the linkage effect of the movable disk is good, and the linkage of cleaning and heat dissipation is realized.

[0019] 5. The lifting plate is driven to move back and forth by the swinging discharge rotating plate. The lifting plate realizes stable lifting movement through the second limit seat, the limit frame and the lifting movable hole. The lifting plate swings during the lifting movement, and the formed product is adsorbed and moved to the working frame by the pneumatic suction cup, so as to realize convenient discharge, and the demoulding and discharge are simple and stable.

[0020] 6. The hydraulic telescopic pump in the movable frame on the discharge plate drives the discharge tooth plate to move back and forth stably in the first limit seat, thereby driving the discharge gear on the discharge rotating shaft to reciprocate back and forth, so that the discharge rotating plate will drive the lifting plate on the other side to lift and swing back and forth, and the structure is simple and stable. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the overall front structure of the present invention;

[0022] Figure 2 It is a schematic diagram of the overall back structure of the present invention;

[0023] Figure 3 For the present invention Figure 1 Schematic diagram of the connection structure of the middle and upper die base;

[0024] Figure 4 For the present invention Figure 3 Schematic diagram of the internal structure of the middle drive box;

[0025] Figure 5 For the present invention Figure 1 Schematic diagram of the connection structure of the middle discharge plate;

[0026] Figure 6 For the present invention Figure 1 Schematic diagram of the internal structure of the middle movable frame;

[0027] Figure 7 For the present invention Figure 4 Schematic diagram of the connection structure between the middle heat dissipation cylinder and the cleaning barrel;

[0028] Figure 8 For the present invention Figure 1 Schematic diagram of the internal structure of the heat dissipation cylinder and the cleaning barrel;

[0029] Fig. 9 For the present invention Figure 1 Schematic diagram of the mold clamping structure of the middle and upper mold bases;

[0030] Fig.10 For the present invention Figure 1 Schematic diagram of the structure of the middle and lower die base;

[0031] Fig.11 For the present invention Figure 5 Schematic diagram of the structure of the second limit seat;

[0032] Fig.12 For the present invention Figure 6 Schematic diagram of the structure of the first limit seat.

[0033] Among them: 10, working frame; 11, lower die seat; 12, conical block; 13, upper die seat; 20, fixed column; 21, rack plate; 22, fixed groove; 23, fixed plate; 24, movable plate; 25, limiting ring; 26, limiting rod; 27, fixed cylinder; 30, fixed cylinder; 31, movable frame; 32, hydraulic telescopic pump; 33, discharge shaft; 34, discharge gear; 35, discharge rotating plate; 36, first limiting seat; 37, first limiting groove; 38, first limiting block; 39, discharge tooth plate; 40, heat dissipation seat; 41, heat dissipation cylinder; 42, heat dissipation piston rod; 43, heat dissipation nozzle; 44, second guide tube; 45, U-shaped connecting pipe; 46, heat dissipation piston plate ; 50. Cleaning seat; 51. Cleaning cylinder; 52. Cleaning piston rod; 53. Cleaning nozzle; 54. First conduit; 55. L-shaped conduit; 56. Cleaning piston plate; 60. Drive box; 61. Servo motor; 62. Rotating shaft; 63. Worm; 64. Rotating rod; 65. Worm wheel; 66. Rotating gear; 67. Rack groove; 68. Rotating groove; 69. Motor plate; 70. Lifting plate; 71. Pneumatic suction cup; 72. Second limiting seat; 73. Second limiting groove; 74. Second limiting block; 75. Limiting frame; 76. Lifting movable hole; 77. Bottom plate; 78. Base frame; 90. Bearing; 91. Telescopic conduit; 92. Air pipe; 93. One-way valve; 94. Support frame. DETAILED DESCRIPTION

[0034] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below in conjunction with specific embodiments, but the following embodiments are only preferred embodiments of the present invention, not all. Based on the embodiments in the implementation mode, other embodiments obtained by those skilled in the art without creative work all belong to the protection scope of the present invention. The experimental methods in the following embodiments, unless otherwise specified, are conventional methods, and the materials, reagents, etc. used in the following embodiments, unless otherwise specified, can all be obtained from commercial channels.

[0035] Embodiment: Figure 1 , Figure 3 , Figure 4 , Figure 5 , Figure 7 and Figure 8As shown, it includes a working frame 10, a fixed column 20 arranged on one end of the top of the working frame 10, and a discharge plate 30 arranged on the other end of the top of the working frame 10. A lower mold base 11 is fixedly installed at the center of the top of the working frame 10 by bolts. A fixed column 20 is fixedly installed at the center of one side of the lower mold base 11 on the top of the working frame 10 by bolts. A fixed cylinder 27 is movably connected to the outer periphery of the fixed column 20. One side of the fixed cylinder 27 is connected to an upper mold base 13 that matches the lower mold base 11 through a conical block 12. A heat sink 40 for cooling and blowing the injection molded product is fixedly installed at the top of one end of the lower mold base 11 by bolts. Cleaning seats 50 for cleaning and blowing the inside of the lower mold base 11 are installed at both ends of one side of the top of the heat sink 40 through connecting rods. A reciprocating component for working the heat sink 40 and the cleaning seat 50 is provided in the fixed column 20, and the reciprocating component includes:

[0036] A cleaning cylinder 51 for blowing air to the cleaning seat 50 is fixedly installed with the cleaning cylinder 51 at the center of the inner bottom end of the fixed column 20 by bolts, and a driving box 60 is fixedly installed with bolts on the outer periphery of the fixed cylinder 27, and a servo motor 61 is connected to the top of one side of the driving box 60 through a motor plate 69, and a rotating shaft 62 is connected to the output end of the servo motor 61, and a worm 63 is installed on the rotating shaft 62 in the driving box 60, and both ends of the driving box 60 are connected to a rotating rod 64 through a bearing 90, and a worm wheel 65 movably meshed with the worm 63 is fixedly installed at one end of the rotating rod 64 by bolts, and the meshing transmission realizes stable movement, and at the same time, the fixed state is stable and will not cause dislocation, and the upper and lower mold clamping is stable;

[0037] The heat dissipation cylinder 41 for blowing air to the heat dissipation seat 40 is fixedly installed with the heat dissipation cylinder 41 at the center of the inner top of the fixed column 20 by bolts, so as to realize the heat dissipation and blowing of the top of the finished product. A rotating gear 66 is fixedly installed on the rotating rod 64 by bolts on the other side of the worm gear 65. A rack plate 21 movably meshed with the rotating gear 66 is fixedly installed on one side of the outer side of the fixed column 20 by bolts, and the rack plate 21 moves in a rack groove 67 provided on the inner side of the fixed cylinder 27, so that the movement is penetrated and the structure is stable.

[0038] A fixing groove 22 is provided on both sides of the fixing column 20, and a fixing plate 23 is fixedly installed at the center of both ends of the fixing cylinder 27 by bolts, and the fixing plate 23 movably penetrates the fixing groove 22, and a movable disk 24 is fixedly installed in the fixing column 20 by bolts between the top ends of the fixing plates 23, and a heat dissipation piston rod 42 movably extending to the heat dissipation cylinder 41 is fixedly installed at the center of the top end of the movable disk 24 by bolts, and a cleaning piston rod 52 movably extending to the cleaning cylinder 51 is fixedly installed at the center of the bottom end of the movable disk 24 by bolts, and heat dissipation and cleaning are integrated by the up and down movement of the movable disk 24;

[0039] A discharge plate 30 is connected to the top of the working frame 10 through a support frame 94, a movable frame 31 is arranged at the top of one side of the discharge plate 30, a hydraulic telescopic pump 32 is fixedly installed on the discharge plate 30 on one side inside the movable frame 31 by bolts, a discharge shaft 33 is connected to the top center of the discharge plate 30 through a bearing 90, a discharge gear 34 is fixedly installed on the outer periphery of one end of the movable frame 31 on the discharge shaft 33 by bolts, a discharge rotating plate 35 is fixedly installed on the other end of the discharge rotating shaft 33 by bolts, a top end of the discharge rotating plate 35 is movably connected to a lifting plate 70 through a rotating shaft, the lifting plate 70 realizes a lifting effect in the back-and-forth rotation motion, and a pneumatic suction cup 71 for adsorbing the product is arranged at the bottom of the lifting plate 70 to adsorb the formed product.

[0040] See also Figure 5 and Figure 6 A first limiting seat 36 is fixedly installed on one side of the discharge plate 30 in the movable frame 31 by bolts, a first limiting groove 37 is provided on the top of the first limiting seat 36, a first limiting block 38 is slidably connected in the first limiting groove 37 on the first limiting seat 36, a discharge tooth plate 39 meshing with the discharge gear 34 is connected to the top of the first limiting block 38, and the top of the hydraulic telescopic pump 32 is connected to the bottom center of the discharge tooth plate 39, so that the meshing movement is stable, and one end of the rotating shaft 62 is connected through The bearing 90 is connected to the drive box 60, and a rotation groove 68 is opened on one side of the fixed cylinder 27, and the rotating gear 66 is movably engaged with the rack plate 21 through the rotation groove 68. The limit ring 25 is fixedly installed at both ends of the rack plate 21 on the outer periphery of the fixed column 20 by bolts, and the limit rod 26 is fixedly installed at both sides between the limit rings 25 by bolts. The fixed cylinder 27 movably passes through the limit rod 26, so that the fixed cylinder 27 is stable during the lifting process, will not be misaligned, and the upper and lower molds are aligned.

[0041] See also Figure 2 , Figure 5 , Fig.11 Fig.12 The second limit seat 72 is fixedly installed at the bottom of the other side of the discharge plate 30 by bolts, and second limit grooves 73 are provided at both ends of the second limit seat 72. A second limit block 74 is slidably connected to the second limit groove 73 on the second limit seat 72, and a limit frame 75 sliding on the outside of the second limit seat 72 is fixedly installed by bolts between the tops of the second limit blocks 74. A lifting movable hole 76 that matches the size of the lifting plate 70 is provided at the center of one side of the limit frame 75. The lifting plate 70 moves in the lifting movable hole 76 to realize the lifting movement and rotation and swinging at the same time. The bottom of the lifting plate 70 is fixedly installed with a bottom plate 77 by bolts, and the bottom ends of the bottom plate 77 are fixedly installed with a base frame 78 by bolts. A number of pneumatic suction cups 71 are evenly installed at the two ends of the bottom of the base frame 78 by bolts, and the pneumatic suction cup 71 moves at the top center of the lower mold base 11 to adsorb and take materials from the product.

[0042] See also Figure 4 , Figure 5 , Figure 7 and Figure 8 The cleaning seat 50 is an inclined structure. A plurality of cleaning nozzles 53 with inclined structures are evenly installed on one side of the cleaning seat 50. A first conduit 54 is connected to one side of the top of the cleaning seat 50 to blow away and clean impurities in the lower mold seat 11. A plurality of heat dissipation nozzles 43 are evenly installed on one side of the heat dissipation seat 40. A second conduit 44 is connected to the other side of the heat dissipation seat 40. A U-shaped connecting pipe 45 is connected to one end of the top of the heat dissipation cylinder 41 for blowing and dissipating air on the top of the finished product. The top of the U-shaped connecting pipe 45 extends through and extends to the outside of the top of the fixed column 20. The bottom of the U-shaped connecting pipe 45 is connected to the second conduit 44 through a telescopic conduit 91. An L-shaped conduit 55 is connected to one end of the bottom of the cleaning cylinder 51. The top of the L-shaped conduit 55 extends through and extends to the outside of the bottom of the fixed column 20. The top of the L-shaped conduit 55 is connected to the first conduit 54 through the telescopic conduit 91. The connecting mechanism is simple and stable.

[0043] See also Fig.10 , Figure 7 and Figure 8 The cleaning cylinder 51 is internally movably connected with a cleaning piston plate 56, the bottom end of the cleaning piston rod 52 penetrates the cleaning cylinder 51 and is installed on the cleaning piston plate 56, the heat dissipation cylinder 41 is internally movably connected with a heat dissipation piston plate 46, the top end of the heat dissipation piston rod 42 penetrates the heat dissipation cylinder 41 and is installed on the heat dissipation piston plate 46, the top side of the heat dissipation cylinder 41 and the bottom side of the cleaning cylinder 51 are both connected with an air pipe 92, and the air pipe 92, the U-shaped connecting pipe 45 and the L-shaped guide tube 55 are all provided with a one-way valve 93, the one-way valve 93 ensures that the exhaust air is exhausted from the heat dissipation seat 40 and the cleaning seat 50, and the intake air enters from the air pipe 92 respectively, thereby ensuring that the heat dissipation and cleaning of the nozzle will not be interfered.

[0044] Working principle: The servo motor 61 is used to make the rotating shaft 62 on the driving box 60 rotate on the bearing 90, and the worm 63 on the rotating shaft 62 is engaged to drive the worm wheel 65 on the rotating rod 64 to rotate. The rotation of the worm wheel 65 drives the rotating gear 66 to rotate stably in the driving box 60, and the rotating gear 66 is engaged on the rack plate 21 to move, so that the rack plate 21 on the fixed column 20 is engaged with the rotating gear 66 in the fixed cylinder 27 to move up and down on the periphery. During the descent of the fixed cylinder 27, the upper mold base 13 is driven to close the mold with the lower mold base 11 on the working frame 10 through the connecting block, and then the plastic material solution is injected into the top of the upper mold base 13, and the medical injection molding product is formed in the upper and lower mold bases 11;

[0045] After the product is cooled and formed, the servo motor 61 drives the fixed cylinder 27 to rise on the periphery of the fixed column 20 to realize demoulding of the product. When the fixed cylinder 27 drives the internal movable disk 24 to rise through the fixed plate 23 and the fixed groove 22 during the rising process of the fixed column 20, the heat dissipation piston plate 46 in the heat dissipation cylinder 41 is driven to rise through the heat dissipation piston rod 42, and the gas of the heat dissipation cylinder 41 is connected to the heat dissipation head on the heat dissipation seat 40 through the U-shaped connecting pipe 45, the second conduit 44 and the telescopic conduit 91, and the heat dissipation head is used to blow air to dissipate heat on the top of the molded product;

[0046] After the air is blown and the heat is dissipated, the hydraulic telescopic pump 32 on the discharge plate 30 drives the discharge tooth plate 39 to move, and the discharge tooth plate 39 engages to drive the discharge gear 34 on the discharge shaft 33 to rotate. During the reciprocating rotation of the discharge gear 34, the discharge rotating plate 35 swings the lifting plate 70 back and forth, and the discharge rotating plate 35 swings back and forth through the second limit seat 72, the limit frame 75 and the lifting active hole 76, so that the air pressure suction cup 71 under the lifting plate 70 adsorbs the cooled molded product, and then moves to the top side of the working frame 10 to realize the convenience of demoulding and discharging;

[0047] When the demolding is completed and the next injection molding is carried out, the downward movement of the fixed cylinder 27 on the fixed column 20 will drive the cleaning piston rod 52 under the movable disk 24 to lower the cleaning piston plate 56 in the cleaning cylinder 51. At this time, the cleaning piston plate 56 will pass the gas in the cleaning cylinder 51 through the L-shaped conduit 55, the first conduit 54 and the telescopic conduit 91 to the cleaning nozzle 53 on the cleaning seat 50. The cleaning nozzle 53 with an inclined structure is used to blow away impurities or burrs in the lower mold base 11, so that the upper and lower molds are clean during the descending molding, which will not affect the quality of the next product molding. When the movable disk 24 moves back and forth, the air pipe 92 and the one-way valve 93 realize air suction in the cylinder, and the nozzles will not interfere with each other.

[0048] The embodiments of the present invention are described in detail above with reference to the accompanying drawings, but the present invention is not limited thereto, and various changes can be made within the knowledge scope of technicians in the relevant technical field without departing from the purpose of the present invention.

Claims

1. A medical injection mold that is easy to demould, comprising a work frame (10), a fixing column (20) arranged on one end of the top of the work frame (10), and a discharge plate (30) arranged on the other end of the top of the work frame (10), characterized in that: A lower die base (11) is fixedly mounted at the center of the top of the working frame (10) by bolts, and a fixing column (20) is fixedly mounted at the center of one side of the lower die base (11) on the top of the working frame (10) by bolts, and a fixing cylinder (27) is movably connected to the periphery of the fixing column (20), and one side of the fixing cylinder (27) is connected to an upper die base (13) matching the lower die base (11) by a conical block (12), and a heat sink (40) for cooling and blowing air for injection molded products is fixedly mounted at the top of one end of the lower die base (11) by bolts, and a cleaning seat (50) for cleaning and blowing air inside the lower die base (11) is installed at both ends of one side of the top of the heat sink (40) by connecting rods, and a reciprocating assembly for operating the heat sink (40) and the cleaning seat (50) is provided in the fixing column (20), and the reciprocating assembly comprises: a cleaning cylinder (51) for blowing air to the cleaning seat (50); the cleaning cylinder (51) is fixedly mounted at the center of the inner bottom end of the fixing column (20) by means of bolts; a driving box (60) is fixedly mounted at the outer periphery of the fixing cylinder (27) by means of bolts; a servo motor (61) is connected to the top of one side of the driving box (60) by means of a motor plate (69); a rotating shaft (62) is connected to the output end of the servo motor (61); a worm (63) is mounted on the rotating shaft (62) in the driving box (60); rotating rods (64) are connected to both ends of the driving box (60) by means of bearings (90); a worm wheel (65) movably meshing with the worm (63) is fixedly mounted at one end of the rotating rod (64) by means of bolts; A heat dissipation cylinder (41) for blowing air to the heat dissipation seat (40); the heat dissipation cylinder (41) is fixedly mounted at the center of the inner top end of the fixed column (20) by means of bolts; a rotating gear (66) is fixedly mounted on the rotating rod (64) by means of bolts on the other side of the worm gear (65); a rack plate (21) movably meshed with the rotating gear (66) is fixedly mounted on the outer side of the fixed column (20) by means of bolts; and the rack plate (21) is movably mounted in a rack groove (67) provided on the inner side of the fixed cylinder (27); The fixing column (20) is provided with fixing grooves (22) on both sides, and fixing plates (23) are fixedly installed at the centers of both ends of the fixing cylinder (27) by means of bolts, and the fixing plates (23) are movably inserted into the fixing grooves (22), and a movable disk (24) is fixedly installed in the fixing column (20) between the top ends of the fixing plates (23) by means of bolts, and a heat dissipation piston rod (42) movably extending to the heat dissipation cylinder (41) is fixedly installed at the center of the top end of the movable disk (24) by means of bolts, and a cleaning piston rod (52) movably extending to the cleaning cylinder (51) is fixedly installed at the center of the bottom end of the movable disk (24) by means of bolts; The discharging plate (30) is connected to the top of the working frame (10) via a support frame (94), a movable frame (31) is arranged at the top of one side of the discharging plate (30), a hydraulic telescopic pump (32) is fixedly installed on the discharging plate (30) on one side of the movable frame (31) via bolts, a discharging rotating shaft (33) is connected to the center of the top of the discharging plate (30) via the bearing (90), a discharging gear (34) is fixedly installed on the outer periphery of one end of the discharging rotating shaft (33) located on the movable frame (31) via bolts, a discharging rotating plate (35) is fixedly installed on the other end of the discharging rotating shaft (33) via bolts, one end of the top of the discharging rotating plate (35) is movably connected to a lifting plate (70) via a rotating shaft, and a pneumatic suction cup (71) for adsorbing the product is arranged at the bottom of the lifting plate (70); A first limiting seat (36) is fixedly installed on one side of the discharge plate (30) in the movable frame (31) by means of bolts, a first limiting groove (37) is provided on the top of the first limiting seat (36), a first limiting block (38) is slidably connected in the first limiting groove (37) on the first limiting seat (36), a discharging tooth plate (39) meshingly connected to the discharging gear (34) is connected to the top of the first limiting block (38), and the top of the hydraulic telescopic pump (32) is connected to the bottom center of the discharging tooth plate (39); A second limiting seat (72) is fixedly installed at the bottom of the other side of the discharge plate (30) by means of bolts, and second limiting grooves (73) are provided at both ends of the second limiting seat (72). A second limiting block (74) is slidably connected in the second limiting groove (73) on the second limiting seat (72), and a limiting frame (75) is fixedly installed between the tops of the second limiting blocks (74) by means of bolts and is slidable on the outside of the second limiting seat (72), and a lifting movable hole (76) having a size matching that of the lifting plate (70) is provided at the center of one side of the limiting frame (75); The cleaning seat (50) is of an inclined structure, a plurality of cleaning nozzles (53) of an inclined structure are evenly mounted on one side of the cleaning seat (50), a first conduit (54) is connected to one side of the top of the cleaning seat (50), a plurality of cooling nozzles (43) are evenly mounted on one side of the heat dissipation seat (40), and a second conduit (44) is connected to the other side of the heat dissipation seat (40).

2. The easy-to-demold medical injection mold according to claim 1, characterized in that: The bottom of the lifting plate (70) is fixedly mounted with a bottom plate (77) by bolts, and the bottom ends of the bottom of the bottom plate (77) are fixedly mounted with a base frame (78) by bolts, and the bottom ends of the base frame (78) are evenly mounted with a plurality of pneumatic suction cups (71) by bolts, and the pneumatic suction cups (71) are movable at the top center of the lower mold base (11).

3. The easy-to-demold medical injection mold according to claim 2, characterized in that: A U-shaped connecting pipe (45) is connected to one end of the top of the heat dissipation cylinder (41), the top end of the U-shaped connecting pipe (45) extends through and to the outside of the top of the fixing column (20), the bottom of the U-shaped connecting pipe (45) is connected to the second pipe (44) via a telescopic pipe (91), and an L-shaped pipe (55) is connected to one end of the bottom of the cleaning cylinder (51), the top end of the L-shaped pipe (55) extends through and to the outside of the bottom of the fixing column (20), and the top end of the L-shaped pipe (55) is connected to the first pipe (54) via the telescopic pipe (91).

4. The easy-to-demold medical injection mold according to claim 1, characterized in that: The cleaning cylinder (51) is movably connected to a cleaning piston plate (56) inside, the bottom end of the cleaning piston rod (52) passes through the cleaning cylinder (51) and is mounted on the cleaning piston plate (56), the heat dissipation cylinder (41) is movably connected to a heat dissipation piston plate (46) inside, the top end of the heat dissipation piston rod (42) passes through the heat dissipation cylinder (41) and is mounted on the heat dissipation piston plate (46), the top side of the heat dissipation cylinder (41) and the bottom side of the cleaning cylinder (51) are both connected to an air pipe (92), and the air pipe (92), the U-shaped connecting pipe (45) and the L-shaped guide tube (55) are all provided with a one-way valve (93).

5. The easy-to-demold medical injection mold according to claim 1, characterized in that: One end of the rotating shaft (62) is connected to the driving box (60) via the bearing (90); a rotating groove (68) is provided on one side of the fixed cylinder (27); and the rotating gear (66) is movably engaged with the rack plate (21) via the rotating groove (68); a limiting ring (25) is fixedly installed at both ends of the rack plate (21) on the outer periphery of the fixed column (20) by bolts; a limiting rod (26) is fixedly installed at both sides of the limiting ring (25) by bolts; and the fixed cylinder (27) movably penetrates the limiting rod (26).

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