CN115351993A - Rapid prototyping injection mold of even cooling - Google Patents

Abstract

The invention relates to an injection mold. The invention relates to a rapid molding injection mold capable of uniformly cooling. The fixing device comprises a fixing device and a pressing device arranged at the top of the fixing device, the fixing device comprises a fixing mechanism, the fixing mechanism comprises a lower die, a lower die cavity is formed in the top of the lower die, a cooling cavity is formed around the lower die cavity, the cooling cavity is arranged in the lower die, and the pressing device comprises a pressing mechanism. The lifting plate moves synchronously with the upper mold through the synchronous structure, under the coordination of the inserted rod, the threaded rod and the driving liquid, the lifting plate cleans the side walls of the lower mold cavity and the upper mold cavity, and after injection molding is completed, the lifting plate can also help an injection molding piece to be demolded and clean injection molding piece residues remained in the injection molding cavity, so that the difficulty in cleaning the mold in a common injection molding method is greatly reduced, and the difficulty in demolding the injection molding piece is reduced.

Description

A Rapid Prototyping Injection Mold with Uniform Cooling

technical field

The invention relates to an injection mold, in particular to a rapid forming injection mold with uniform cooling.

Background technique

Injection molding is a tool for producing plastic products, and it is also a tool for giving plastic products a complete structure and precise dimensions. Injection molding is a processing method used in the mass production of certain complex-shaped parts. Specifically, it refers to melting plastic by heat. The injection molding machine is injected into the mold cavity under high pressure, and the molded product is obtained after cooling and solidification. After the injection molded part is formed, the injection mold needs to be cooled. Otherwise, the cooling step will take a lot of time and greatly reduce the working efficiency of injection molding. A uniform and rapid cooling device for injection molds and injection molded parts. Common cooling devices have a better cooling effect, but after the injection molded parts are formed, the difficulty of demoulding and mold cleaning is not as compared with traditional injection molding methods. The difficulty of demoulding is still a problem that needs to be solved.

Contents of the invention

The object of the present invention is to provide a uniformly cooled rapid prototyping injection mold to solve the problems raised in the above-mentioned background technology.

In order to achieve the above object, a rapid prototyping injection mold with uniform cooling is provided, including a fixing device and a pressing device arranged on the top of the fixing device, the fixing device includes a fixing mechanism, the fixing mechanism includes a lower mold, and the lower mold A lower mold cavity is opened on the top of the lower mold cavity, and a cooling cavity is opened around the lower mold cavity, and the cooling cavity is arranged inside the lower mold. The pressing device includes a pressing mechanism, and the pressing mechanism includes an upper mold. The mold is arranged on the top of the lower mold, and the bottom of the upper mold is provided with an upper mold cavity. When the bottom end of the upper mold is attached to the top of the lower mold, the lower mold cavity and the upper mold cavity cooperate to form an injection cavity. Both the lower mold and the upper mold are equipped with a synchronous mechanism, and the two synchronous mechanisms include lifting plates, and the two lifting plates are respectively slidably arranged inside the lower mold cavity and the upper mold cavity. During the mould, the lifting plate helps the injection molded parts to be demoulded, and cleans the inner walls of the lower mold cavity and the upper mold cavity. One side of the lifting plate is provided with a synchronous structure, and the synchronous structure is used to make the two chutes and the inner walls of the upper mold cavity clean. The upper mold moves synchronously.

As a further improvement of the technical solution, an injection port is opened on one side of the lower mold cavity, and the injection port runs through the lower mold, and a water injection port is opened on one side of the cooling cavity, and the cooling cavity runs through the lower mold. The top of the cooling cavity is provided with several communication holes, and the communication holes run through the lower mold.

As a further improvement of this technical solution, a communication cavity is provided around the upper mold cavity, and a lead-out groove is provided on one side of the communication cavity, and the lead-out groove runs through the upper mold. slots, the connecting slots and communication holes are provided in one-to-one correspondence.

As a further improvement of the technical solution, several sealing mechanisms are provided inside the lower mold and the upper mold, and the sealing mechanism includes a sealing disc, which is used to seal the communication hole and the connecting groove. When the disk finishes sealing the communication hole and the block, the sealing disk stores part of the cooling water and flows on the upper surface of the lower mold when the upper mold moves upward. One end of the sealing disk is hinged with a rotating rod, and the outer wall of the rotating rod A rotating sleeve is sleeved on one end of the rotating sleeve, and a rotating gear is fixedly connected to one end of the rotating sleeve.

As a further improvement of the technical solution, the end of the sealing disc away from the rotating rod is provided with a locking slot, and one side of the locking slot is provided with a locking block, and the locking block and the locking slot are snap-fitted. One side is fixedly connected with a clamping rod, the inner wall of one end of the clamping rod is threadedly connected with a threaded rod, the top of the lower mold is fixedly connected with several protruding rods, and the bottom end of the upper mold is fixedly connected with several pressing rods.

As a further improvement of the technical solution, a control mechanism is provided on one side of the rotating rod, and the control mechanism includes a motor, and a sealing plate is provided on one side of the motor, and the sealing plate is coaxially connected with the output shaft of the motor , one end of the sealing plate is fixedly connected with a control rod.

As a further improvement of the technical solution, a sliding frame is attached to the top of one end of the control rod, a baffle is fixedly connected to the side wall of the sliding frame, a return spring is fixedly connected to one side of the baffle, and the cooling One side inside the chamber is provided with a temperature sensor.

As a further improvement of the technical solution, the synchronous structure includes two elevating rods, one end of the elevating rods is fixedly connected to the elevating plate, the other end of the elevating rods is fixedly connected to the elevating frame, and the surroundings of the elevating rods are provided with There are several inserting rods, and the inserting rods are fixedly connected with the elevating frame.

As a further improvement of this technical solution, a chute is provided inside the lower mold, a lifting groove is provided inside the upper mold, and several positioning rods are arranged around the lower mold, and the positioning rods and the lower mold are fixed Connecting, the inner wall of the positioning rod is plugged with a sleeve rod, the top of the sleeve rod is fixedly connected with the upper mold, the sleeve rod and the insertion rod are plugged and fitted, and the inner wall of the sleeve rod is provided with a driving fluid.

Compared with prior art, the beneficial effect of the present invention:

1. In the rapid prototyping injection mold with uniform cooling, the lifting plate moves synchronously with the upper mold through the synchronous structure. With the cooperation of the plunger, threaded rod and driving fluid, the lifting plate moves the side walls of the lower mold cavity and the upper mold cavity. Clean up, and after the injection molding is completed, the lifting plate can also help the injection molded parts to be demoulded, and clean up the residue of the injection molded parts left in the injection cavity, which greatly reduces the difficulty of cleaning the mold in common injection molding methods, and at the same time reduces the injection molding process. Difficulty in demoulding parts.

2. In the rapid prototyping injection mold with uniform cooling, when the bottom end of the upper mold and the top end of the lower mold are bonded together, the seal of the communication hole and the block is released by the sealing mechanism. At this time, the cooling cavity and the cooling inside the communication cavity The water can start to circulate, and evenly absorb heat and cool down around the injection molded parts, so as to avoid the uneven heat absorption and cooling of the injection molded parts during the cooling molding process, resulting in damage to the injection molded parts. At the same time, the temperature sensor can also control the water injection port according to the temperature of the cooling water. When the temperature of the cooling water drops to the set value, the water injection port and the outlet tank are closed, so that the temperature of the lower mold and the upper mold can be kept warm, which is convenient for the next injection molding operation, and the sealing plate can save part of the cooling Water, when the upper mold is opened, the cooling water flows to the surrounding of the injection molded part to cool down and lubricate, further increasing the efficiency of demoulding.

Description of drawings

Fig. 1 is the overall structure schematic diagram of the present invention;

Fig. 2 is one of structural representations of the fixing device of the present invention;

Fig. 3 is one of structural representations of the fixing mechanism of the present invention;

Fig. 4 is the second structural diagram of the fixing mechanism of the present invention;

Fig. 5 is the structural representation of sealing mechanism and control mechanism of the present invention;

Fig. 6 is a schematic structural view of the sealing mechanism of the present invention;

Fig. 7 is the structural representation of control mechanism of the present invention;

Fig. 8 is the structural representation of synchronous mechanism of the present invention;

9 is a schematic structural view of the pressing device of the present invention;

Fig. 10 is one of the structural schematic diagrams of the pressing mechanism of the present invention;

Fig. 11 is the second structural schematic diagram of the pressing mechanism of the present invention;

Fig. 12 is a schematic diagram of the position of the draw solution of the present invention.

The meanings of each symbol in the figure are:

1. Fixing device;

11. Fixing mechanism; 111. Lower mold; 112. Lower mold cavity; 113. Cooling cavity; 1131. Temperature sensor; 114. Chute; 115. Positioning rod; 116. Water injection port; 117. Injection port; ; 119, protruding rod; 12, sealing mechanism; 121, sealing disc; 122, rotating rod; ; 13, control mechanism; 131, motor; 132, sealing plate; 133, control rod; 134, sliding frame; 135, baffle plate; 136, return spring; 143, lifting rod; 144, lifting plate;

2. Press device;

21, pressing mechanism; 211, upper mold; 212, upper mold cavity; 213, connecting cavity; 214, lifting groove; 215, connecting groove; 216, leading groove;

Detailed ways

The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

In describing the present invention, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", " Orientation indicated by rear, left, right, vertical, horizontal, top, bottom, inside, outside, clockwise, counterclockwise, etc. The positional relationship is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, Therefore, it should not be construed as limiting the invention.

Example 1

The purpose of this embodiment is to provide a rapid prototyping injection mold with uniform cooling. Considering that when the injection molded parts are cooled and formed, it is necessary to uniformly absorb heat and cool down the rapid injection molded parts, please refer to Figure 1-Figure 3 and Figure 9- As shown in Figure 10, it includes a fixing device 1 and a pressing device 2 arranged on the top of the fixing device 1. The fixing device 1 includes a fixing mechanism 11. The fixing mechanism 11 includes a lower mold 111. The lower mold 111 is used to determine the position of the injection molded part and help injection molding. The top of the lower mold 111 is provided with a lower mold cavity 112, the lower mold cavity 112 is used to accommodate the injection molding solution to form an injection molded part inside the lower mold cavity 112, and a cooling cavity 113 is opened around the lower mold cavity 112, cooling Cavity 113 is used to accommodate cooling water flowing inside it, so as to facilitate rapid and uniform cooling of injection molded parts inside lower mold cavity 112. Cooling cavity 113 is arranged inside lower mold 111, and one side of lower mold cavity 112 is provided with an injection port. 117, the injection port 117 is used to introduce the injection molding solution into the lower mold cavity 112, the injection port 117 runs through the lower mold 111, and a water injection port 116 is opened on one side of the cooling cavity 113, and the water injection port 116 is used to guide cooling water into the cooling cavity 113, the cooling cavity 113 runs through the lower mold 111, and the top of the cooling cavity 113 is provided with a number of communication holes 118, and the communication holes 118 run through the lower mold 111;

The pressing device 2 includes a pressing mechanism 21, the pressing mechanism 21 includes an upper mold 211, the upper mold 211 is used to cooperate with the lower mold 111 to determine the position of the injection molded part, the upper mold 211 is arranged on the top of the lower mold 111, and the bottom of the upper mold 211 is provided with an upper mold. Cavity 212, when the bottom of upper mold 211 and the top of lower mold 111 are attached, lower mold cavity 112 and upper mold cavity 212 cooperate to form injection molding cavity, and injection molding cavity is used for determining the shape of injection molded part, and the periphery of upper mold cavity 212 A communication cavity 213 is provided, which is used to cooperate with the cooling cavity 113 to uniformly absorb heat and cool down around the injection molded part. A communication cavity 213 is provided around the upper mold cavity 212, and a lead-out groove is provided on one side of the communication cavity 213 216, the outlet groove 216 is used to export the cooling water inside the communication cavity 213, the outlet groove 216 runs through the upper mold 211, and the bottom of the communication cavity 213 is provided with a number of connection grooves 215, and the connection grooves 215 and the communication holes 118 are arranged in one-to-one correspondence. The groove 215 is used to introduce cooling water into the interior of the communication chamber 213;

When the bottom of the upper mold 211 and the top of the lower mold 111 are attached, the lower mold cavity 112 and the upper mold cavity 212 cooperate to form an injection molding cavity, and the injection molding solution is injected into the injection molding port 117, and the injection molding solution enters the injection molding cavity through the injection molding port 117 The coolant is introduced into the water injection port 116, the coolant enters the interior of the cooling cavity 113 through the water injection port 116, and then enters the interior of the communication cavity 213 through the communication hole 118 and the connection groove 215, so as to complete the uniform suction of the side wall of the injection cavity. The thermal cooling effect, compared with common cooling methods, absorbs heat more uniformly on injection molded parts, avoiding internal expansion and contraction due to different temperatures during the cooling molding process of injection molded parts, which in turn causes stress inside the injection molded part. Damaged phenomena such as cracks appear.

Considering that the lower mold 111 and the lower mold cavity 112 need to be at the same temperature when the injection molded part is cooled, please refer to Fig. 2-Fig. 6 and Fig. 9-Fig. Several sealing mechanisms 12, the sealing mechanism 12 includes a sealing disc 121, the sealing disc 121 is used to seal the communication hole 118 and the connecting groove 215, and when the sealing disc 121 finishes sealing the communication hole 118 and the block 125, the sealing disc 121 stores Part of the cooling water flows on the upper surface of the lower mold 111 when the upper mold 211 moves upwards. One end of the sealing disc 121 is hinged with a rotating rod 122. The rotating rod 122 is used to drive the sealing disc 121 to slide in the vertical direction. The rotating rod 122 One end of the outer wall is sleeved with a rotating sleeve 123. The rotating sleeve 123 is used to drive the rotating rod 122 to rotate. One end of the rotating sleeve 123 is fixedly connected with a rotating gear 124. The rotating gear 124 is used to drive the rotating sleeve 123 to rotate. The gear 124 and the rotating gear 124 inside the sealing disc 121 are engaged with each other, and several sealing discs 121 are respectively slidably arranged inside the communicating hole 118 and the block 125, and several rotating gears 124 are respectively rotatably arranged inside the lower mold 111 and the sealing disc 121;

One end of the sealing disc 121 away from the rotating rod 122 is provided with a draw-in groove 128, and one end of the rotating gear 124 is fixedly connected with a torsion spring, and the torsion spring is used to drive the rotating gear 124 to rotate, and one side of the drawing-in groove 128 is provided with a block 125, which 125 is used to cooperate with the draw-in groove 128 to determine the position of the sealing disc 121, the draw-in block 125 and the draw-in groove 128 are snap-fitted, and one side of the draw-in block 125 is fixedly connected with a draw bar 126, and the draw bar 126 is used to drive the draw block 125 to rotate, The inner wall of one end of the clamp rod 126 is threadedly connected with a threaded rod 127. The threaded rod 127 is used to drive the clamp rod 126 to rotate. Several protruding rods 119, the bottom end of the upper mold 211 are fixedly connected with some pressing rods 218, and several threaded rods 127 are fixedly connected with the pressing rods 218 and the protruding rods 119 respectively;

Before the bottom end of the upper mold 211 is attached to the top end of the lower mold 111, the block 125 and the slot 128 snap fit together to fix the position of the sealing disc 121, and the lower mold 111 and the sealing disc 121 inside the sealing disc 121 are respectively The communication hole 118 and the connecting groove 215 are sealed;

After the bottom end of the upper mold 211 and the lower mold 111 are attached, the threaded rod 127 at one end of the protruding rod 119 drives the clamping rod 126 inside the upper mold 211 to rotate, and the threaded rod 127 at one end of the pressing rod 218 drives the clamping rod 127 inside the lower mold 111. The rod 126 rotates, and the clamping rod 126 drives the clamping block 125 to rotate, so that the clamping block 125 and the rotating gear 124 are engaged in engagement. At this moment, the rotating gear 124 on the lower mold 111 and the rotating gear 124 on the sealing disc 121 mesh, and the torsion spring drives the rotation The gear 124 rotates, so that the rotating sleeve 123 drives the rotating rod 122 to rotate, and the rotating rod 122 drives the sealing plate 121 to slide, and the sealing of the connecting hole 118 and the block 125 is completed. The effect of internal circulation;

When the bottom end of the upper mold 211 is about to leave the top of the lower mold 111, the sealing plate 121 returns to the sealing position to re-seal the communication hole 118 and the block 125, and retains part of the cooling water in the sealing process during the sealing process. Inside the disc 121, the upper mold 211 moves upward, and the upper mold 211 drives the pressure rod 218 to move upward, and the pressure rod 218 moves with the threaded rod 127 at one end of the pressure rod 218, and the upper mold 211 gradually moves away from the convex rod 119 and the convex rod The threaded rod 127 at one end of 119, at this time, the threaded cooperation between the threaded rod 127 and the clamping rod 126 makes the clamping rod 126 rotate, and the clamping rod 126 drives the clamping block 125 to limit the position of the rotating gear 124 again, and the cooling inside the sealing disc 121 When the water flows out, part of the cooling water flows to the surroundings of the injection molding cavity, and the injection molded parts are directly contacted to cool down. At this time, the injection molded parts will expand with heat and contract with cold, and there will be gaps between the side walls of the injection molded parts and the side walls of the injection molding cavity. Cooling water flows in along the gap, which increases the demoulding effect of injection molded parts and facilitates subsequent cleaning of impurities inside the injection cavity.

Considering that in the process of injection molding, it is necessary to control the opening and closing of the cooling water cycle according to the temperature of the cooling water, please refer to Fig. 2-Fig. 7 and Fig. 9-Fig. The control mechanism 13 includes a motor 131. The motor 131 is used to drive the sealing plate 132 to rotate. One side of the motor 131 is provided with a sealing plate 132. The sealing plate 132 is used to seal the water injection port 116 and the outlet groove 216. The sealing plate 132 and the motor 131 The output shaft of the control rod 133 is coaxially connected, and one end of the sealing plate 132 is fixedly connected with a control rod 133. The control rod 133 is used to drive the sliding frame 134 to rotate. Rod 122 rotates, and the side wall of sliding frame 134 is fixedly connected with baffle plate 135, and baffle plate 135 is used for determining the position of back-moving spring 136, and one side of baffle plate 135 is fixedly connected with back-moving spring 136, and back-moving spring 136 is used for promoting baffle plate 135 slides, and one side inside the cooling chamber 113 is provided with a temperature sensor 1131, the temperature sensor 1131 is used to detect the temperature of the cooling water inside the cooling chamber 113, and controls the operation of the motor 131 according to the temperature of the cooling water;

When the bottom end of the upper mold 211 is attached to the top end of the lower mold 111, after the injection molding solution is injected into the injection cavity, the temperature of the injection cavity will rise sharply. At this time, the temperature sensor 1131 detects that the temperature rise exceeds the set value. value, the temperature sensor 1131 turns on the switch of the motor 131, the motor 131 drives the sealing plate 132 to rotate, and releases the seal on the water injection port 116 and the outlet groove 216, the sealing plate 132 drives the control rod 133 to rotate, and the return spring 136 drives the baffle plate 135 downward Moving, the baffle plate 135 drives the sliding frame 134 to move downward, the torsion spring drives the rotating gear 124 to rotate, and then the sealing disc 121 is opened, at this time, the effect of cooling water circulating around the injection cavity is realized, and the injection molded parts are evenly cooled Effect;

When the temperature of the injection molded part gradually decreases to the set value, the temperature of the cooling water also decreases. When the temperature sensor 1131 detects that the temperature of the cooling water drops to the set value, the temperature sensor 1131 controls the motor 131 to rotate in the opposite direction. The motor 131 drives the sealing plate 132 to rotate, and re-completes the sealing of the water injection port 116 and the outlet groove 216. At this time, the cooling water inside the cooling cavity 113 and the communication cavity 213 no longer circulates, and the temperature of the lower mold 111 and the upper mold 211 can be reduced. Keeping at the set temperature is convenient for a new injection molding after demoulding to improve work efficiency. At the same time, when the sealing plate 132 rotates, it drives the control rod 133 to rotate, and the control rod 133 drives the sliding frame 134 to move, and the sliding frame 134 pushes the rotating rod 122 Make the rotating sleeve 123 and the rotating gear 124 rotate, and now the rotating gear 124 overcomes the elastic force of the torsion spring and rotates, and the rotating rod 122 drives the sealing disc 121 to slide, and the communicating hole 118 and the connecting groove 215 are sealed again.

Considering that demolding and cleaning are relatively difficult in common injection molding methods, please refer to Figure 2-Figure 5, Figure 8-Figure 10 and Figure 12, the inside of the lower mold 111 and the upper mold 211 are equipped with a synchronous mechanism 14. The two synchronous mechanisms 14 include a lifting plate 144. The two lifting plates 144 are slidably arranged inside the lower mold cavity 112 and the upper mold cavity 212. When the upper mold 211 is far away from the lower mold 111, the lifting plate 144 helps the injection molded parts to move forward. Demoulding, and the inner wall of lower mold cavity 112 and upper mold cavity 212 is cleaned up, and one side of lifting plate 144 is provided with synchronous structure, and synchronous structure is used to make two chute 114 and upper mold 211 move synchronously, and synchronous structure comprises Two lifting rods 143, the lifting rod 143 is used to drive the lifting plate 144 to move, one end of the lifting rod 143 is fixedly connected with the lifting plate 144, and the other end of the lifting rod 143 is fixedly connected with a lifting frame 142, and the lifting frame 142 is used to drive the lifting rod 143 to move, a number of inserting rods 141 are provided around the lifting rod 143, and the inserting rods 141 are used to drive the lifting frame 142 to move, the inserting rods 141 and the lifting frame 142 are fixedly connected, and the inside of the lower mold 111 is provided with a chute 114, which is located in the lower mold The lifting frame 142 inside 111 is slidably arranged in the inside of the chute 114, the inside of the upper mold 211 is provided with a lifting groove 214, the lifting frame 142 being in the inside of the upper mold 211 is slidably arranged in the inside of the lifting groove 214, and the surrounding of the lower mold 111 is provided with a lifting groove 214. There are several positioning rods 115, the positioning rods 115 are fixedly connected with the lower mold 111, the inner wall of the positioning rods 115 is plugged with a sleeve rod 217, the sleeve rod 217 is used to drive the insertion rod 141 to move, and the top of the sleeve rod 217 is fixed to the upper mold 211 connection, the sleeve rod 217 and the insertion rod 141 are plugged and matched, and the inner wall of the sleeve rod 217 is provided with a driving liquid;

When the distance between the upper mold 211 and the lower mold 111 was the largest, the lifting plate 144 inside the lower mold cavity 112 and the upper surface of the lower mold 111 formed a plane, and the lifting plate 144 inside the upper mold cavity 212 and the lower surface of the upper mold 211 The surface forms a plane, which is convenient for cleaning the upper mold 211, the lower mold 111 and the lifting plate 144;

When the upper mold 211 is gradually approaching the lower mold 111, the distance between the upper mold 211 and the lower mold 111 is gradually reduced, and the two ends of the sleeve rod 217 are inserted with the insertion rod 141, and the inside of the sleeve rod 217 is equipped with a drive liquid, which keeps the distance between the inserting rods 141 at both ends of the sleeve rod 217 equal all the time. When the upper mold 211 descends, the inside of the upper mold 211 first touches the top of the elevating frame 142 inside the upper mold 211. The lifting frame 142 is pressed to move downward, and the lifting frame 142 pushes the insertion rod 141 and the lifting rod 143 to move downward at the same time, and the insertion rod 141 moves the insertion rod 141 inside the lower mold 111 downward under the cooperation of the driving fluid and the sleeve rod 217 , and then the bottom end of the lifting frame 142 inside the lower mold 111 touches the inside of the lower mold 111, so when the bottom end of the upper mold 211 is close to the top of the lower mold 111, the lifting plate 144 inside the lower mold cavity 112 is close to The bottom end of the lower mold cavity 112, the lifting plate 144 inside the upper mold cavity 212 is close to the top of the upper mold cavity 212;

The injection molding solution is injected into the injection cavity, and after the injection molding is formed, the upper mold 211 moves upward, and the upper mold 211 drives the sleeve rod 217 to move upward. When the sleeve rod 217 moves upward, the insertion rods 141 at both ends of the sleeve rod 217 are subjected to gravity The impact of the upper mold cavity 212 does not move upward. At this time, the lifting plate 144 inside the upper mold cavity 212 and the side wall of the upper mold cavity 212 slide relative to each other, and the side wall of the upper mold cavity 212 is cleaned, and the upper mold 211 is moved to the set position. At this time, the bottom end of the lifting frame 142 inside the upper mold 211 contacts the upper mold 211, and the upper mold 211 drives the lifting frame 142 to move upward. At this time, the lifting plate 144 inside the upper mold cavity 212 and the lower surface of the upper mold 211 form a When the lifting frame 142 moves upward, the insertion rod 141 inside the lower mold 111 moves upward through the cooperation of the insertion rod 141 and the driving liquid, and the insertion rod 141 drives the lifting plate inside the lower mold cavity 112 through the lifting frame 142 and the lifting rod 143 144 moves upward, the lifting plate 144 cleans the impurities and cooling water inside the lower mold cavity 112, and at the same time cuts off the connection position between the injection port 117 and the injection molded part, after the lifting plate 144 and the upper surface of the lower mold 111 form a plane Stop, compared with the common demoulding and cleaning methods, it can avoid cleaning the groove position during cleaning, effectively solve the cleaning difficulties caused by the groove in the mold, and complete it directly when opening the upper mold 211 Easy demoulding and cleaning, effectively improving work efficiency.

The basic principles, main features and advantages of the present invention have been shown and described above. Those skilled in the art should understand that the present invention is not limited by the above-mentioned embodiments, and those described in the above-mentioned embodiments and description are only preferred examples of the present invention, and are not intended to limit the present invention, without departing from the spirit and scope of the present invention. Under the premise, the present invention will have various changes and improvements, and these changes and improvements all fall within the scope of the claimed invention. The protection scope of the present invention is defined by the appended claims and their equivalents.

Claims (9)

1. A rapid prototyping injection mold for uniform cooling, characterized in that: it comprises a fixture (1) and a pressing device (2) arranged on the top of the fixture (1), and the fixture (1) includes a fixture (11 ), the fixed mechanism (11) includes a lower mold (111), the top of the lower mold (111) is provided with a lower mold cavity (112), and the surrounding of the lower mold cavity (112) is provided with a cooling cavity (113 ), the cooling cavity (113) is arranged inside the lower mold (111), the pressing device (2) includes a pressing mechanism (21), and the pressing mechanism (21) includes an upper mold (211), and the upper The mold (211) is arranged on the top of the lower mold (111), the bottom of the upper mold (211) is provided with an upper mold cavity (212), the bottom of the upper mold (211) and the top of the lower mold (111) When laminating, the lower mold cavity (112) and the upper mold cavity (212) cooperate to form an injection molding cavity, and the inside of the lower mold (111) and the upper mold (211) are all provided with a synchronous mechanism (14), and the two described Synchronization mechanism (14) comprises lifting plate (144), and two described lifting plates (144) are slidingly arranged in the inside of lower mold cavity (112) and upper mold cavity (212) respectively, and described upper mold (211) is away from During the lower mold (111), the lifting plate (144) helps the injection molded part to be demolded, and the inner walls of the lower mold cavity (112) and the upper mold cavity (212) are cleaned up. One side of the lifting plate (144) is provided with There is a synchronous structure for synchronously moving the two runners (114) and the upper mold (211). 2. The rapid prototyping injection mold with uniform cooling according to claim 1, characterized in that: one side of the lower mold cavity (112) is provided with an injection port (117), and the injection port (117) runs through the lower mold (111), one side of the cooling cavity (113) is provided with a water injection port (116), the cooling cavity (113) runs through the lower mold (111), and the top of the cooling cavity (113) is provided with some communicating holes (118), the communicating hole (118) runs through the lower mold (111). 3. The rapid prototyping injection mold with uniform cooling according to claim 1, characterized in that: a communicating cavity (213) is opened around the upper mold cavity (212), and a side of the communicating cavity (213) is opened There is a lead-out groove (216), and the lead-out groove (216) runs through the upper mold (211), and the bottom of the communicating cavity (213) is provided with several connecting grooves (215), and the connecting groove (215) and the connecting hole ( 118) One-to-one correspondence setting. 4. The rapid prototyping injection mold for uniform cooling according to claim 1, characterized in that: the inside of the lower mold (111) and the upper mold (211) are provided with several sealing mechanisms (12), and the sealing mechanism (12) comprising a sealing disc (121), the sealing disc (121) is used to seal the communication hole (118) and the connecting groove (215), and the sealing disc (121) is used to seal the communication hole (118) and the connection groove (215) at the end. When the block (125) is sealed, the sealing disc (121) stores part of the cooling water, and flows on the upper surface of the lower mold (111) when the upper mold (211) moves upward, and one end of the sealing disc (121) is hinged with a A rotating rod (122), one end of the outer wall of the rotating rod (122) is sleeved with a rotating sleeve (123), and one end of the rotating sleeve (123) is fixedly connected with a rotating gear (124). 5. The rapid prototyping injection mold with uniform cooling according to claim 4, characterized in that: the end of the sealing plate (121) away from the rotating rod (122) is provided with a slot (128), and the slot (128) ) is provided with a clamping block (125) on one side, and the clamping block (125) and the clamping groove (128) are clamped and matched, and one side of the clamping block (125) is fixedly connected with a clamping rod (126), and the The inner wall of one end of the clamping rod (126) is threadedly connected with a threaded rod (127), the top of the lower mold (111) is fixedly connected with several protruding rods (119), and the bottom end of the upper mold (211) is fixedly connected with several Pressure rod (218). 6. The uniform cooling rapid prototyping injection mold according to claim 5, characterized in that: one side of the rotating rod (122) is provided with a control mechanism (13), and the control mechanism (13) includes a motor (131 ), one side of the motor (131) is provided with a sealing plate (132), the output shaft of the sealing plate (132) and the motor (131) is coaxially connected, and one end of the sealing plate (132) is fixedly connected with Control lever (133). 7. The rapid prototyping injection mold for uniform cooling according to claim 6, characterized in that: a sliding frame (134) is attached to the top of one end of the control rod (133), and the side wall of the sliding frame (134) A baffle (135) is fixedly connected, a return spring (136) is fixedly connected to one side of the baffle (135), and a temperature sensor (1131) is provided on one side inside the cooling chamber (113). 8. The rapid prototyping injection mold with uniform cooling according to claim 1, characterized in that: the synchronous structure includes two lifting rods (143), one end of the lifting rods (143) is fixed to the lifting plate (144) connection, the other end of the lifting rod (143) is fixedly connected with a lifting frame (142), and several insertion rods (141) are arranged around the lifting rod (143), and the insertion rod (141) and the lifting frame ( 142) Fixed connection. 9. The rapid prototyping injection mold with uniform cooling according to claim 8, characterized in that: the inside of the lower mold (111) is provided with a chute (114), and the inside of the upper mold (211) is provided with a lift Groove (214), described lower mold (111) is provided with several positioning rods (115) around, and described positioning rod (115) and lower mold (111) are fixedly connected, and the inner wall of described positioning rod (115) inserts Fitted with a sleeve rod (217), the top of the sleeve rod (217) is fixedly connected to the upper mold (211), the sleeve rod (217) and the insertion rod (141) are plugged and fitted, and the sleeve rod (217) The inner wall is provided with a drive fluid.

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