Mold manufacturing device convenient to demold

Abstract

The invention relates to the technical field of mold injection molding and demolding, in particular to a mold manufacturing device convenient to demold, which comprises a mold body, the lower end of the mold body is fixedly connected with an annular matching connecting plate, and a polishing detection mechanism comprises a first limiting body slidably arranged at the upper end of the matching connecting plate; the upper end of the first limiting body is fixedly connected with a first electric telescopic rod, the telescopic end of the first electric telescopic rod is fixedly connected with a second motor, the transmission shaft end of the second motor is fixedly connected with a first fixing body, and the end face of the first fixing body is fixedly connected with an extraction mechanism for clamping and taking out a formed workpiece. A temperature control mechanism for controlling the temperature of the mold body is arranged in the matching connecting plate; and when the fixing rod rotates, the fifth electric telescopic rod and the third electric telescopic rod can control the angle of the grinding plate, so that the fixing rod can guarantee mold bodies with different groove diameters, impurities are prevented from remaining in injection molding grooves of the mold bodies, the quality of workpieces after injection molding is improved, and mold stripping is convenient.

Description

Technical Field

[0001] The invention relates to the technical field of mold injection and demoulding, and in particular to a mold manufacturing device with convenient demoulding. Background Art

[0002] Injection molding is a process in which plastic raw materials are heated and melted into a state with good fluidity, and then rapidly injected into the mold cavity under high pressure. After cooling and solidification, a plastic product with the same shape as the mold cavity is obtained. In the prior art, when producing products with cylindrical ring structures, the raw materials are generally first heated to a hot melt state, and then the molten raw materials are injected into the mold, and the product is taken out after cooling and forming.

[0003] After the product is formed, when the cylindrical ring structure product is demolded, the cooled shell is not easy to remove. During continuous production, some impurities are easily attached to the inner wall of the mold, affecting the surface roughness of the subsequent shell production and reducing the production quality. When the existing technology uses a mold to manufacture the shell, the cooling speed of the mold is slow, and the temperature of the mold is low when it contacts the hot melt material. Due to the extremely rapid temperature difference, the service life of the mold is very short and the production cost is very high. Summary of the Invention

[0004] The purpose of the present invention is to solve the shortcomings of the background technology and to propose a mold manufacturing device that is convenient for demoulding.

[0005] To achieve the above objectives, the technical solution adopted by the present invention is: a mold manufacturing device that is convenient for demolding, comprising a mold body, the lower end of the mold body is fixedly connected to a ring-shaped matching connecting plate, the upper side of the matching connecting plate is provided with a grinding and detection mechanism for grinding and detecting the injection groove at the upper end of the mold body, the grinding and detection mechanism comprises a first limiter slidably arranged on the upper end of the matching connecting plate, the upper end of the first limiter is fixedly connected to a first electric telescopic rod, the telescopic end of the first electric telescopic rod is fixedly connected to a second motor, the transmission shaft end of the second motor is fixedly connected to a first fixed body, the end face of the first fixed body is fixedly connected to an extraction mechanism for clamping and removing the workpiece after molding, and a temperature control mechanism for controlling the temperature of the mold body is provided in the matching connecting plate.

[0006] Preferably, a second limiting groove is provided at the lower end of the first fixed body, a third motor is fixedly connected in the second limiting groove, a transmission shaft end of the third motor is fixedly connected to a second threaded rod, a second limiting body is slidably provided in the second limiting groove and is threadably matched with the second threaded rod, a fourth motor is fixedly connected to the lower end of the second limiting body, and a rotating rod is fixedly connected to the transmission shaft end of the fourth motor.

[0007] Preferably, a fixed rod is fixedly connected to the side of the rotating rod, and a symmetrically arranged third limiting groove is opened on the side of the fixed rod. Five electric telescopic rods are respectively fixedly connected to the two third limiting grooves at positions near the upper ends, and the telescopic ends of the two fifth electric telescopic rods are respectively rotatably connected to polishing plates.

[0008] Preferably, the fixed rod is respectively provided with a second electric telescopic rod at a position close to the third limiting groove, the telescopic ends of the two second electric telescopic rods are respectively fixedly connected to the third limiting body, the upper ends of the two third limiting bodies are respectively fixedly connected to the third electric telescopic rod, and the telescopic ends of the two third electric telescopic rods are respectively rotatably cooperated with the grinding plate.

[0009] Preferably, the outer ends of the two grinding plates are respectively provided with a number of equally spaced fourth limiting grooves, a number of the fourth limiting grooves are respectively fixedly connected with a first spring, the ends of a number of the first springs are respectively fixedly connected with a first pressure sensor, and the ends of a number of the first pressure sensors are respectively fixedly connected with a top block that slides with the fourth limiting groove.

[0010] Preferably, a first limiting groove is opened at the upper end of the mating connecting plate, a first motor is fixedly connected in the first limiting groove, a first threaded rod is fixedly connected to the transmission shaft end of the first motor, the first limiting body is slidingly matched with the first limiting groove, and the first limiting body is threadedly matched with the first threaded rod.

[0011] Preferably, the extraction mechanism includes a third fixed body fixedly connected to the end of the first fixed body, a sixth limiting groove is opened at the lower end of the third fixed body, a fifth motor is fixedly connected in the sixth limiting groove, a third threaded rod is fixedly connected to the transmission shaft end of the fifth motor, two fourth limiting bodies are slidably fitted in the sixth limiting groove and are threadably fitted with the third threaded rod, the lower ends of the two fourth limiting bodies are respectively fixedly connected to fourth electric telescopic rods, the telescopic ends of the fourth electric telescopic rods are respectively fixedly connected to bidirectional electric telescopic rods, and the telescopic ends of the bidirectional electric telescopic rods are respectively fixedly connected to connectors.

[0012] Preferably, the rotation directions of the threads in the two fourth limiting bodies are opposite, the ends of the four connecting bodies are respectively fixedly connected to the second fixing bodies, the lower ends of the four second fixing bodies are respectively provided with fifth limiting grooves, a number of second springs are respectively fixedly connected to the four fifth limiting grooves, the ends of a number of second springs are respectively fixedly connected to second pressure sensors, the lower ends of a number of second pressure sensors are fixedly connected to flexible rings that slide with the fifth limiting grooves, and a second air pump is respectively provided in the four second fixed bodies.

[0013] Preferably, the temperature control mechanism includes a fixed shell fixedly arranged in the groove at the lower end of the mold body, a cavity is provided in the fixed shell, a plurality of equidistantly arranged heating wires are provided in the cavity, the fixed shell is made of heat-conducting material, two symmetrically arranged air holes are provided in the matching connecting plate, the inner ends of the two air holes are respectively fixedly connected to air pipes communicating with the cavity, several of the heating wires are connected to a power supply, and the side of the matching connecting plate is fixedly connected to a first air pump communicating with the air hole.

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

[0015] 1. The first motor drives the first limiting body to move along the first limiting groove to ensure that the rotating rod moves along the contour of the injection groove above the mold body, and at the same time starts the fourth motor, the fourth motor drives the fixed rod to rotate, and the side of the fixed rod is provided with a grinding plate through the telescopic end of the third electric telescopic rod and the fifth electric telescopic rod. When the fixed rod rotates, the fifth electric telescopic rod and the third electric telescopic rod can control the angle of the grinding plate, so that the fixed rod can ensure the mold body with different groove diameters, prevent impurities from remaining in the injection groove of the mold body, improve the quality of the workpiece after injection molding and facilitate demolding. While the fixed rod is grinding and cleaning the injection groove above the mold body, the top blocks on the sides of the two grinding plates are connected to the first spring through the first pressure sensor. The value of the first pressure sensor can detect the groove diameter and smoothness of the injection groove on the mold body, thereby controlling the extension and contraction amount of the fifth electric telescopic rod and the third electric telescopic rod to ensure that the surface roughness of the workpiece after demolding is low and easy to demold;

[0016] 2. Before injection molding, start several heating wires to slowly increase the temperature of the mold body to prevent the temperature from rising suddenly when the hot melt liquid is added. Start the first air pump during cooling to speed up the cooling and molding of the workpiece, thereby increasing the service life of the mold body and the cooling speed of the workpiece.

[0017] 3. The fifth motor drives the two fourth limiting bodies to move in the opposite direction. When the two fourth limiting bodies move to just above the side of the workpiece, they stop rotating. At this time, the two bidirectional electric telescopic rods are extended so that the second fixed bodies at the telescopic ends of the two bidirectional electric telescopic rods are positioned just above the side wall of the workpiece. Then, the first limiting groove is contracted so that the flexible ring on the lower end face of the second fixed body contacts the workpiece. The values ​​of several second pressure sensors can be used to detect that the flexible ring is tightly attached to the workpiece. Then, the second air pump is started to reduce the internal pressure of the second fixed body, thereby firmly adsorbing the workpiece. Then, the first electric telescopic rod is extended to clamp and remove the workpiece. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0019] Figure 2 The present invention is a sectional view of the whole Figure 1 ;

[0020] Figure 3 The present invention is a sectional view of the whole Figure 2 ;

[0021] Figure 4 The present invention is a sectional view of the whole Figure 3 ;

[0022] Figure 5 Partial cross-section of the present invention Figure 1 ;

[0023] Figure 6 is a cross-sectional view of a fixing rod of the present invention;

[0024] Figure 7 For the present invention Figure 2 A magnified view of point A;

[0025] Figure 8 For the present invention Figure 6 Enlarged view of point B;

[0026] Figure 9 For the present invention Figure 6 Enlarged view of point C.

[0027] 1. Mold body; 2. Connecting plate; 3. Temperature control mechanism; 4. Grinding and detection mechanism; 5. Extraction mechanism; 31. Fixed shell; 32. Cavity; 33. Heating wire; 34. Air delivery hole; 35. Air delivery pipe; 36. First air pump; 41. First electric telescopic rod; 42. First limiting groove; 43. First limiting body; 44. First threaded rod; 45. First motor; 46. Second motor; 47. First fixed body; 48. Fixed rod; 49. Third motor; 410. Second threaded rod; 411. Second limiting body; 412. Second limiting groove; 413. Rotating rod; 414. Fourth motor; 415. Third limiting groove; 416. 6. Second electric telescopic rod; 417. Third limiting body; 418. Third electric telescopic rod; 419. Grinding plate; 420. Top block; 421. First spring; 422. Fourth limiting groove; 423. Fifth electric telescopic rod; 424. First pressure sensor; 51. Second fixed body; 52. Fifth limiting groove; 53. Second spring; 54. Second pressure sensor; 55. Flexible ring; 56. Second air pump; 57. Third fixed body; 58. Fifth motor; 59. Fourth limiting body; 510. Third threaded rod; 511. Sixth limiting groove; 512. Fourth electric telescopic rod; 513. Bidirectional electric telescopic rod; 514. Connecting body. DETAILED DESCRIPTION

[0028] The following description is intended to disclose the present invention so that those skilled in the art can implement the present invention. The preferred embodiments described below are merely examples, and those skilled in the art may conceive of other obvious variations.

[0029] See also Figures 1-8 A mold manufacturing device that is convenient for demolding includes a mold body 1, the lower end of the mold body 1 is fixedly connected to a ring-shaped matching connecting plate 2, and the upper side of the matching connecting plate 2 is provided with a grinding and detection mechanism 4 for grinding and detecting the injection groove at the upper end of the mold body 1.

[0030] In this embodiment, the grinding detection mechanism 4 includes a first limiting body 43 slidably arranged on the upper end of the mating connecting plate 2, the upper end of the first limiting body 43 is fixedly connected to the first electric telescopic rod 41, the telescopic end of the first electric telescopic rod 41 is fixedly connected to the second motor 46, and the transmission shaft end of the second motor 46 is fixedly connected to the first fixed body 47.

[0031] A second limiting groove 412 is provided at the lower end of the first fixed body 47, and a third motor 49 is fixedly connected in the second limiting groove 412. The transmission shaft end of the third motor 49 is fixedly connected to a second threaded rod 410. A second limiting body 411 is slidably provided in the second limiting groove 412 and is threadably engaged with the second threaded rod 410. The lower end of the second limiting body 411 is fixedly connected to a fourth motor 414, and the transmission shaft end of the fourth motor 414 is fixedly connected to a rotating rod 413.

[0032] The side of the rotating rod 413 is fixedly connected to the fixed rod 48, and the side of the fixed rod 48 is provided with a symmetrically arranged third limiting groove 415. The two third limiting grooves 415 are respectively fixedly connected to the positions near the upper ends of the five electric telescopic rods 423, and the telescopic ends of the two fifth electric telescopic rods 423 are respectively rotatably connected to the polishing plates 419.

[0033] The fixed rod 48 is respectively provided with a second electric telescopic rod 416 at a position close to the third limiting groove 415, and the telescopic ends of the two second electric telescopic rods 416 are respectively fixedly connected to the third limiting body 417, and the upper ends of the two third limiting bodies 417 are respectively fixedly connected to the third electric telescopic rod 418, and the telescopic ends of the two third electric telescopic rods 418 are respectively rotatably cooperated with the grinding plate 419.

[0034] The outer ends of the two grinding plates 419 are respectively provided with a number of equally spaced fourth limiting grooves 422, and a first spring 421 is fixedly connected in a number of the fourth limiting grooves 422, and the ends of a number of the first springs 421 are respectively fixedly connected with a first pressure sensor 424, and the ends of a number of the first pressure sensors 424 are respectively fixedly connected with a top block 420 that slides with the fourth limiting groove 422.

[0035] A first limiting groove 42 is provided at the upper end of the mating connecting plate 2, a first motor 45 is fixedly connected in the first limiting groove 42, a first threaded rod 44 is fixedly connected to the transmission shaft end of the first motor 45, the first limiting body 43 is slidingly fitted with the first limiting groove 42, and the first limiting body 43 is threadably fitted with the first threaded rod 44.

[0036] Specifically, the first motor 45 drives the first limiting body 43 to move along the first limiting groove 42, ensuring that the rotating rod 413 moves along the contour of the injection groove above the mold body 1, and at the same time starts the fourth motor 414, and the fourth motor 414 drives the fixed rod 48 to rotate. The side of the fixed rod 48 is provided with a grinding plate 419 through the telescopic end rotation of the third electric telescopic rod 418 and the fifth electric telescopic rod 423. When the fixed rod 48 rotates, the fifth electric telescopic rod 423 and the third electric telescopic rod 418 can control the angle of the grinding plate 419, so that the fixed rod 48 can ensure the mold body 1 with different groove diameters, thereby preventing impurities from remaining in the injection groove of the mold body 1.

[0037] In this embodiment, an extraction mechanism 5 for clamping and removing the formed workpiece is fixedly connected to the end surface of the first fixed body 47 .

[0038] The extraction mechanism 5 includes a third fixed body 57 fixedly connected to the end of the first fixed body 47, a sixth limiting groove 511 is opened at the lower end of the third fixed body 57, a fifth motor 58 is fixedly connected in the sixth limiting groove 511, and the transmission shaft end of the fifth motor 58 is fixedly connected to the third threaded rod 510, and two fourth limiting bodies 59 are slidably fitted in the sixth limiting groove 511 and are threadably fitted with the third threaded rod 510, and the lower ends of the two fourth limiting bodies 59 are respectively fixedly connected to fourth electric telescopic rods 512, and the telescopic ends of the fourth electric telescopic rod 512 are respectively fixedly connected to bidirectional electric telescopic rods 513, and the telescopic ends of the bidirectional electric telescopic rod 513 are respectively fixedly connected to connecting bodies 514.

[0039] The rotation directions of the internal threads of the two fourth limiting bodies 59 are opposite, the ends of the four connecting bodies 514 are respectively fixedly connected to the second fixed body 51, the lower ends of the four second fixed bodies 51 are respectively provided with a fifth limiting groove 52, and the four fifth limiting grooves 52 are respectively fixedly connected with a number of second springs 53, the ends of several second springs 53 are respectively fixedly connected with a second pressure sensor 54, the lower ends of several second pressure sensors 54 are fixedly connected with a flexible ring 55 that slides with the fifth limiting groove 52, and the four second fixed bodies 51 are respectively provided with a second air pump 56.

[0040] Specifically, the fifth motor 58 drives the two fourth limiting bodies 59 to move in the opposite direction. When the two fourth limiting bodies 59 move to the position directly above the side of the workpiece, they stop rotating. At this time, the two bidirectional electric telescopic rods 513 are extended, so that the second fixed bodies 51 at the telescopic ends of the two bidirectional electric telescopic rods 513 are positioned directly above the side wall of the workpiece. Then, the first limiting groove 42 is contracted, so that the flexible ring 55 on the lower end face of the second fixed body 51 contacts the workpiece. The values ​​of several second pressure sensors 54 can be used to detect that the flexible ring 55 is tightly attached to the workpiece.

[0041] In this embodiment, a temperature control mechanism 3 for controlling the temperature of the mold body 1 is provided in the matching connecting plate 2 .

[0042] The temperature control mechanism 3 includes a fixed shell 31 fixedly arranged in the groove at the lower end of the mold body 1, and a cavity 32 is defined in the fixed shell 31. A plurality of equidistantly arranged heating wires 33 are provided in the cavity 32. The fixed shell 31 is made of heat-conducting material. Two symmetrically arranged air holes 34 are defined in the matching connecting plate 2. The inner ends of the two air holes 34 are respectively fixedly connected to air pipes 35 communicating with the cavity 32. Several of the heating wires 33 are connected to a power supply. A first air pump 36 communicating with the air holes 34 is fixedly connected to the side of the matching connecting plate 2.

[0043] Specifically, starting several heating wires 33 can slowly increase the temperature of the mold body 1 to prevent the temperature from suddenly rising when the hot-melt liquid is added. Starting the first air pump 36 during cooling can accelerate the cooling and forming of the workpiece, thereby increasing the service life of the mold body 1 and the cooling speed of the workpiece.

[0044] When in use, the device is fixed below the injection molding outlet by the matching connecting plate 2. Before polishing, the second motor 46 is started, and the second motor 46 drives the first fixed body 47 to rotate, so that the rotating rod 413 below the first fixed body 47 is located above the matching connecting plate 2. Then the first fixed body 47 is started, and the first fixed body 47 drives the second threaded rod 410 to rotate, thereby cooperating to drive the second limiting body 411 to move along the second limiting groove 412. At the same time, the first motor 45 is started, and the first motor 45 drives the first limiting body 43 to move along the first limiting groove 42, ensuring that the rotating rod 413 moves along the contour of the injection molding groove above the mold body 1. At the same time, the fourth motor 414 is started, and the fourth motor 414 drives the fixed rod 48 to rotate. The side of the fixed rod 48 is connected by the third electric telescopic rod 418 and the fifth electric telescopic rod 42 3 is rotatably provided with a grinding plate 419 at the telescopic end thereof. When the fixed rod 48 rotates, the fifth electric telescopic rod 423 and the third electric telescopic rod 418 can control the angle of the grinding plate 419, so that the fixed rod 48 can ensure that the mold body 1 with different groove diameters is prevented from residual impurities in the injection groove of the mold body 1, thereby improving the quality of the workpiece after injection molding and facilitating demolding. While the fixed rod 48 is grinding and cleaning the injection groove above the mold body 1, the top blocks 420 on the sides of the two grinding plates 419 are connected to the first spring 421 through the first pressure sensor 424. The value of the first pressure sensor 424 can be used to detect the groove diameter and smoothness of the injection groove on the mold body 1, thereby controlling the extension and contraction amount of the fifth electric telescopic rod 423 and the third electric telescopic rod 418, ensuring that the surface roughness of the workpiece after demolding is low and easy to demold.

[0045] Before injection molding, several heating wires 33 are started to slowly increase the temperature of the mold body 1 to prevent the temperature from suddenly rising when the hot-melt liquid is added. During cooling, the first air pump 36 is started to accelerate the cooling and molding of the workpiece, thereby increasing the service life of the mold body 1 and the cooling speed of the workpiece. When the workpiece is cooled, the second motor 46 is started to rotate the third fixing body 57 to the top of the mold body 1, and then the fifth motor 58 is started. The fifth motor 58 drives the two fourth limiting bodies 59 to move in the opposite direction. When the two fourth limiting bodies 59 move to the side of the workpiece, the third fixing body 57 is rotated to the top of the mold body 1. Then it stops rotating and extends the two bidirectional electric telescopic rods 513 so that the second fixed body 51 at the telescopic ends of the two bidirectional electric telescopic rods 513 is positioned just above the side wall of the workpiece. Then the first limiting groove 42 is retracted so that the flexible ring 55 on the lower end face of the second fixed body 51 contacts the workpiece. The values ​​of several second pressure sensors 54 can be used to detect that the flexible ring 55 is in close contact with the workpiece. Then the second air pump 56 is started to reduce the internal pressure of the second fixed body 51, thereby firmly adsorbing the workpiece. Then the first electric telescopic rod 41 is extended to clamp and remove the workpiece.

[0046] The above shows and describes the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions merely illustrate the principles of the present invention. Various changes and modifications may be made to the present invention without departing from the spirit and scope of the present invention. Such changes and modifications are intended to fall within the scope of the present invention. The scope of protection claimed by the present invention is defined by the appended claims and their equivalents.

Claims

1. A mold manufacturing device for convenient demoulding, comprising a mold body (1), wherein the lower end of the mold body (1) is fixedly connected to an annular matching connecting plate (2), characterized in that: A grinding and detection mechanism (4) for grinding and detecting the injection molding groove at the upper end of the mold body (1) is provided on the upper side of the matching connecting plate (2), and the grinding and detection mechanism (4) includes a first limiting body (43) slidably provided on the upper end of the matching connecting plate (2), the upper end of the first limiting body (43) is fixedly connected to a first electric telescopic rod (41), the telescopic end of the first electric telescopic rod (41) is fixedly connected to a second motor (46), the transmission shaft end of the second motor (46) is fixedly connected to a first fixed body (47), and the end face of the first fixed body (47) is fixedly connected to an extraction mechanism (5) for clamping and removing the workpiece after molding, and a temperature control mechanism (3) for controlling the temperature of the mold body (1) is provided in the matching connecting plate (2).

2. A mold manufacturing device with convenient demoulding according to claim 1, characterized in that: A second limiting groove (412) is provided at the lower end of the first fixed body (47), a third motor (49) is fixedly connected in the second limiting groove (412), a transmission shaft end of the third motor (49) is fixedly connected to a second threaded rod (410), a second limiting body (411) is slidably provided in the second limiting groove (412) and is threadably engaged with the second threaded rod (410), a fourth motor (414) is fixedly connected at the lower end of the second limiting body (411), and a rotating rod (413) is fixedly connected to the transmission shaft end of the fourth motor (414).

3. A mold manufacturing device with convenient demoulding according to claim 2, characterized in that: The side of the rotating rod (413) is fixedly connected to a fixed rod (48), and the side of the fixed rod (48) is provided with a symmetrically arranged third limiting groove (415), and the two third limiting grooves (415) are respectively fixedly connected at positions close to the upper ends to the fifth electric telescopic rods (423), and the telescopic ends of the two fifth electric telescopic rods (423) are respectively rotatably connected to the polishing plates (419).

4. A mold manufacturing device with convenient demoulding according to claim 3, characterized in that: The fixing rod (48) is provided with a second electric telescopic rod (416) at a position close to the third limiting groove (415), and the telescopic ends of the two second electric telescopic rods (416) are respectively fixedly connected to the third limiting body (417), and the upper ends of the two third limiting bodies (417) are respectively fixedly connected to the third electric telescopic rod (418), and the telescopic ends of the two third electric telescopic rods (418) are respectively rotatably matched with the grinding plate (419).

5. The mold manufacturing device with convenient demoulding according to claim 4, characterized in that: The outer ends of the two grinding plates (419) are respectively provided with a plurality of fourth limiting grooves (422) arranged at equal intervals, a first spring (421) is respectively fixedly connected in a plurality of the fourth limiting grooves (422), the ends of a plurality of the first springs (421) are respectively fixedly connected to a first pressure sensor (424), and the ends of a plurality of the first pressure sensors (424) are respectively fixedly connected to a top block (420) that is slidably matched with the fourth limiting groove (422).

6. The mold manufacturing device with convenient demoulding according to claim 1, characterized in that: A first limiting groove (42) is provided at the upper end of the matching connecting plate (2), a first motor (45) is fixedly connected in the first limiting groove (42), a first threaded rod (44) is fixedly connected to the transmission shaft end of the first motor (45), the first limiting body (43) is slidably matched with the first limiting groove (42), and the first limiting body (43) is threadably matched with the first threaded rod (44).

7. The mold manufacturing device with convenient demoulding according to claim 1, characterized in that: The extraction mechanism (5) includes a third fixed body (57) fixedly connected to the end of the first fixed body (47), a sixth limiting groove (511) is provided at the lower end of the third fixed body (57), a fifth motor (58) is fixedly connected in the sixth limiting groove (511), a transmission shaft end of the fifth motor (58) is fixedly connected to a third threaded rod (510), two fourth limiting bodies (59) are slidably engaged with the third threaded rod (510) through threads in the sixth limiting groove (511), the lower ends of the two fourth limiting bodies (59) are respectively fixedly connected to fourth electric telescopic rods (512), the telescopic ends of the fourth electric telescopic rods (512) are respectively fixedly connected to bidirectional electric telescopic rods (513), and the telescopic ends of the bidirectional electric telescopic rods (513) are respectively fixedly connected to connecting bodies (514).

8. The mold manufacturing device with convenient demoulding according to claim 7, characterized in that: The internal threads of the two fourth limiting bodies (59) have opposite rotation directions, the ends of the four connecting bodies (514) are respectively fixedly connected to the second fixing body (51), the lower ends of the four second fixing bodies (51) are respectively provided with a fifth limiting groove (52), a plurality of second springs (53) are respectively fixedly connected in the four fifth limiting grooves (52), the ends of the plurality of second springs (53) are respectively fixedly connected to the second pressure sensors (54), the lower ends of the plurality of second pressure sensors (54) are fixedly connected to a flexible ring (55) that is slidably matched with the fifth limiting groove (52), and a second air pump (56) is respectively provided in the four second fixing bodies (51).

9. The mold manufacturing device with convenient demoulding according to claim 1, characterized in that: The temperature control mechanism (3) includes a fixed shell (31) fixedly arranged in a groove at the lower end of the mold body (1), a cavity (32) is provided in the fixed shell (31), a plurality of equidistantly arranged heating wires (33) are provided in the cavity (32), the fixed shell (31) is made of heat-conducting material, two symmetrically arranged air delivery holes (34) are provided in the matching connecting plate (2), the inner ends of the two air delivery holes (34) are respectively fixedly connected to air delivery pipes (35) communicating with the cavity (32), a plurality of the heating wires (33) are connected to a power supply, and a first air pump (36) communicating with the air delivery hole (34) is fixedly connected to the side of the matching connecting plate (2).

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