Plastic mold convenient to demold

Abstract

The invention relates to the technical field of injection mold devices, in particular to a plastic mold convenient to demold. Comprising two mold bodies, an injection molding hole is formed in one mold body, electric push rods are symmetrically arranged on the mold body, a movable plate is arranged in the mold body in a sliding mode, the movable plate is connected with telescopic rods of the electric push rods, and demolding rods are connected to the movable plate at intervals; the demolding rod is used for pushing out a plastic product subjected to injection molding in the mold body, and a liquid storage mechanism used for storing a demolding agent is arranged in the mold body. The demolding rod is driven to move through the electric push rod, a formed plastic product can be pushed out through the demolding rod, so that an operator can conveniently take down the formed plastic product, and when the demolding rod is reset, a demolding agent can be automatically sprayed to a designated position through a spray head arranged on the demolding rod; therefore, automatic spraying of the release agent is achieved, manual operation steps are reduced, and the production efficiency is greatly improved.

Description

Technical Field

[0001] The present invention relates to the technical field of injection mold devices, and particularly to a plastic mold facilitating demolding. Background Art

[0002] In the manufacturing process of plastic products, injection molding is a common and efficient production method. This process involves injecting molten plastic into a closed mold, and after cooling and solidifying, the required plastic products are formed. However, after injection molding, a key step is to remove the finished product from the mold, namely the so-called "demolding" process. Traditionally, in order to ensure that the finished product can be smoothly removed from the mold without damage, a demolding agent is usually sprayed on the mold surface before injection. This demolding agent can reduce the adhesion force between the plastic product and the mold to a certain extent, thus simplifying the demolding process.

[0003] However, although the use of demolding agent helps to improve the demolding efficiency, this process also brings some challenges and inconveniences. The existing operation process relies on manual or robotic arm control to complete the spraying of the demolding agent, which not only increases the labor cost but also reduces the production efficiency. Especially in large-scale production, this will become an important factor restricting the production speed, and due to the existence of human factors, uneven spraying may occur, affecting the demolding effect. Summary of the Invention

[0004] In view of this, the present invention provides a plastic mold facilitating demolding, which can solve the drawbacks that the existing plastic molds rely on manual or robotic arm control to complete the spraying of the demolding agent before use, which is not only time-consuming and laborious but also affects the production efficiency.

[0005] The technical solution is as follows: A plastic mold facilitating demolding includes a mold body. The number of the mold bodies is two. An injection hole is opened in one of the mold bodies. Electric push rods are symmetrically arranged on the mold body. A movable plate is slidably arranged in the mold body. The movable plate is connected to the telescopic rod of the electric push rod. Demolding rods are connected to the movable plate at intervals. The demolding rods are used to push out the plastic products completed in the mold body. A liquid storage mechanism for storing the demolding agent is arranged in the mold body. A piston cylinder is also arranged on the mold body. A first piston rod is slidably arranged on the piston cylinder. The end of the first piston rod is connected to the movable plate. The first piston rod is movable to draw the demolding agent in the liquid storage mechanism into the piston cylinder. A first channel is opened in the first piston rod. An inner tube is arranged in the demolding rod. A feeding mechanism is arranged in the movable plate. The feeding mechanism is used to send the demolding agent in the piston cylinder into the inner tube through the first channel. A sleeve is rotatably arranged on the demolding rod. A spray head is arranged on the sleeve. The spray head is rotatably connected to the end of the demolding rod and is rotatably communicated with the inner tube. The spray head is used to spray the demolding agent. A rotating mechanism is arranged on the sleeve. The rotating mechanism is used to drive the spray head to rotate.

[0006] Further, the liquid storage mechanism includes a liquid storage tank, a tank cover, an infusion tube, and a first one-way valve. The liquid storage tank is arranged inside the mold body. The tank cover is threadedly installed on the liquid storage tank. An air hole is provided on the tank cover. The piston cylinder is communicated with the liquid storage tank through the infusion tube, and a first one-way valve is arranged on the infusion tube.

[0007] Further, the feeding mechanism includes a pipeline and a second one-way valve. The pipeline is arranged inside the movable plate. The inner tube is communicated with the first channel inside the first piston rod through the pipeline, and a second one-way valve is arranged on the pipeline.

[0008] Further, the rotating mechanism includes a threaded cylinder, a fixed ring, and balls. The threaded cylinder is arranged outside the sleeve. Thread grooves are provided on the outside of the threaded cylinder. Fixed rings are arranged at intervals inside the mold body. Balls are embedded inside the fixed rings, and the balls are used to be stuck into the thread grooves of the threaded cylinder.

[0009] Further, a limiting mechanism is further included. The limiting mechanism includes a clamping block and a first spring. The clamping blocks are slidably arranged at intervals on the movable plate. A first spring is connected between the clamping block and the movable plate. A clamping groove is provided between the sleeve and the threaded cylinder. By the clamping block being stuck into the clamping groove, the sleeve and the threaded cylinder are limited in this way.

[0010] Further, a recycling mechanism is further included. The recycling mechanism includes a second piston rod, a connecting pipe, a connecting rod, and a positioning member. The second piston rod is further slidably arranged on the piston cylinder. The second piston rod is slidably connected with the first piston rod. A groove is provided on the second piston rod. A second channel is provided inside the second piston rod. The second channel inside the second piston rod is communicated with the infusion tube through the connecting pipe. Connecting rods are connected at intervals at the end of the second piston rod. The connecting rods are located inside the piston cylinder. A positioning member is arranged inside the mold body, and the positioning member is used to limit the second piston rod.

[0011] Further, the positioning member includes a clamping plate and a second spring. The clamping plates are slidably arranged at intervals inside the mold body. The clamping plates are used to be stuck into the grooves to limit the second piston rod. A second spring is connected between the clamping plate and the inner side of the mold body.

[0012] Further, a first strip-shaped groove is provided on the movable plate, and a second strip-shaped groove is provided inside the mold body. The spaces inside the first strip-shaped groove and the second strip-shaped groove are both used for the connecting pipe to move.

[0013] Advantages of the present invention: 1. The present invention drives the demolding rod to move through the electric push rod, and can use the demolding rod to push out the formed plastic product, so as to facilitate the operator to take down the formed plastic product. When the demolding rod resets, the demolding agent can also be automatically sprayed at the specified position by the spray head arranged on the demolding rod, so as to realize the automatic spraying of the demolding agent, which not only reduces the manual operation steps, but also greatly improves the production efficiency.

[0014] 2. The present invention drives the nozzle to rotate by means of a rotating mechanism, and can also ensure that the release agent is evenly sprayed at the designated position, avoiding the uneven spraying phenomenon caused by unskilled manual operation or improper control of the robotic arm, thereby improving the consistency of product quality.

[0015] 3. Through the design of the limiting mechanism, the present invention can prevent the unnecessary rotation of the sleeve due to vibration, ensure the accuracy of the position of the sleeve end face, and enhance the stability and reliability of the equipment operation.

[0016] 4. By setting up a recovery mechanism, the present invention can recycle part of the release agent that has not been sprayed to the designated position back to the liquid storage tank for reuse, effectively reducing the consumption of the release agent and saving the production cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is a schematic three-dimensional structure diagram of the present invention.

[0018] Figure 2 is a separated structure diagram of two mold bodies of the present invention.

[0019] Figure 3 is a schematic three-dimensional structure diagram of the liquid storage tank, piston cylinder and first piston rod of the present invention.

[0020] Figure 4 is a schematic three-dimensional structure diagram of the liquid storage mechanism of the present invention.

[0021] Figure 5 is a schematic three-dimensional structure diagram of the feeding mechanism of the present invention.

[0022] Figure 6 is a cross-sectional view of the piston cylinder and the first piston rod of the present invention.

[0023] Figure 7 is a schematic three-dimensional structure diagram of the sleeve, threaded cylinder and fixing ring of the present invention.

[0024] Figure 8 is a schematic three-dimensional structure diagram of the nozzle, threaded cylinder and ball of the present invention.

[0025] Figure 9 is a schematic three-dimensional structure diagram of the limiting mechanism of the present invention.

[0026] Figure 10 is of the present invention Figure 9 enlarged view of part A.

[0027] Figure 11 is a schematic three-dimensional structure diagram of the recovery mechanism of the present invention.

[0028] Figure 12 is of the present invention Figure 11Enlarged view of part B.

[0029] Figure 13 Cross-sectional view of the recovery mechanism of the present invention.

[0030] Figure 14 Schematic three-dimensional structure diagram of the second piston rod, the second channel and the connecting rod of the present invention.

[0031] Figure 15 Schematic three-dimensional structure diagram of the second piston rod, the connecting pipe and the second strip-shaped groove of the present invention.

[0032] Reference numerals in the drawings: 1, mold body; 101, injection hole; 2, electric push rod; 3, movable plate; 4, demolding rod; 501, liquid storage tank; 502, tank cover; 503, air hole; 504, infusion tube; 505, first one-way valve; 6, piston cylinder; 7, first piston rod; 8, first channel; 9, inner tube; 1001, pipeline; 1002, second one-way valve; 11, sleeve; 12, nozzle; 1301, threaded cylinder; 1302, fixing ring; 1303, ball; 14, clamping block; 15, first spring; 16, clamping groove; 17, second piston rod; 18, groove; 19, second channel; 20, connecting pipe; 21, connecting rod; 2201, clamping plate; 2202, second spring; 23, first strip-shaped groove; 24, second strip-shaped groove. Detailed implementation mode

[0033] The present invention will be further described below with reference to the drawings and embodiments.

[0034] Embodiment: A plastic mold facilitating demolding, see Figures 1-8 As shown, it includes a mold body 1; the number of mold bodies 1 is two, and the two mold bodies 1 are distributed left and right. An injection hole 101 is opened in the middle inside the left mold body 1, and the injection hole 101 is used for injecting molten plastic. It further includes an electric push rod 2, a movable plate 3, a demolding rod 4, a liquid storage mechanism, a piston cylinder 6, a first piston rod 7, an inner tube 9, a feeding mechanism, a sleeve 11, a nozzle 12 and a rotating mechanism; Electric push rods 2 are symmetrically arranged before and after the mold body 1; A movable plate 3 is slidably arranged inside the mold body 1, and the movable plate 3 is connected to the telescopic rod of the electric push rod 2; Four demolding rods 4 are connected to the movable plate 3 at intervals. By driving the movable plate 3 to move through the electric push rod 2, the movable plate 3 can drive the demolding rods 4 to move, so that the demolding rods 4 can push out the plastic products completed by injection molding in the mold body 1; A liquid storage mechanism for storing demolding agent is arranged inside the mold body 1; A piston cylinder 6 is arranged on the front side inside the mold body 1. A through hole is opened at one end of the piston cylinder 6 far from the first piston rod 7, and the through hole is used for discharging the air in the piston cylinder 6; A first piston rod 7 is slidably arranged on the piston cylinder 6, and the first piston rod 7 is connected to the movable plate 3. When the first piston rod 7 moves towards the side close to the piston cylinder 6 following the movable plate 3, the inside of the piston cylinder 6 can gradually present a negative pressure state, so as to suck the demolding agent in the liquid storage mechanism into the piston cylinder 6; A first channel 8 is opened in the first piston rod 7; An inner tube 9 is arranged inside the demolding rod 4; A feeding mechanism is arranged inside the movable plate 3. When the first piston rod 7 moves away from the side of the piston cylinder 6 following the movable plate 3, the first piston rod 7 can squeeze the demolding agent in the piston cylinder 6 into the first channel 8, and then the feeding mechanism sends the demolding agent in the first channel 8 into the inner tube 9; A sleeve 11 is rotatably arranged on the outside of the demolding rod 4. The end surface of the sleeve 11 far from the movable plate 3 is adapted to the shape in the model groove in the mold body 1. In this way, the end surface of the sleeve 11 will not affect the molding of the plastic product; A nozzle 12 is arranged on the side of the sleeve 11 far from the movable plate 3. The nozzle 12 is rotatably connected to the end of the demolding rod 4, and the nozzle 12 is rotatably communicated with the inner tube 9. The nozzle 12 is used for spraying the demolding agent fed into the inner tube 9; A rotating mechanism is arranged on the sleeve 11, and the rotating mechanism is used to drive the sleeve 11 and the nozzle 12 to rotate, so that the nozzle 12 can evenly spray the demolding agent at a specified position.

[0035] See Figures 3-5 As shown, the liquid storage mechanism includes a liquid storage tank 501, a tank cover 502, an infusion tube 504 and a first one-way valve 505; A liquid storage tank 501 is arranged on the upper side inside the mold body 1; The tank cover 502 is threadedly installed on the top of the liquid storage tank 501. An air hole 503 is opened in the middle of the tank cover 502, and the air hole 503 is used to keep the air pressure in the liquid storage tank 501 normal; The two ends of the infusion tube 504 are respectively communicated with the top of the piston cylinder 6 and the bottom of the liquid storage tank 501; A first one-way valve 505 is arranged at one end of the infusion tube 504 close to the top of the piston cylinder 6. The first one-way valve 505 can only allow the demolding agent and gas in the infusion tube 504 to enter the piston cylinder 6, and block the demolding agent and gas in the piston cylinder 6 from entering the infusion tube 504.

[0036] See Figure 5and Figure 6 As shown in Figure 6 , the feeding mechanism includes a pipeline 1001 and a second one-way valve 1002. The pipeline 1001 is arranged inside the movable plate 3, and the inner pipe 9 is communicated with the first channel 8 inside the first piston rod 7 through the pipeline 1001. A second one-way valve 1002 is arranged at the port of the pipeline 1001 close to the first piston rod 7. The second one-way valve 1002 only allows the demolding agent and gas in the first channel 8 to enter the pipeline 1001, and blocks the demolding agent and gas in the pipeline 1001 from entering the first channel 8.

[0037] Refer to Figure 7 and Figure 8 As shown in Figure 7 and Figure 8 , the rotating mechanism includes a threaded barrel 1301, a fixing ring 1302 and a ball 1303. The threaded barrel 1301 is arranged on the outer surface of one side of the sleeve 11 close to the movable plate 3, and two threaded grooves are arranged on the outer side of the threaded barrel 1301. Four fixing rings 1302 are arranged at intervals inside the mold body 1, and the four sleeves 11 inside the mold body 1 respectively pass through the four fixing rings 1302. Two balls 1303 are inlaid inside the fixing ring 1302, and the balls 1303 are used to be stuck into the threaded grooves of the threaded barrel 1301.

[0038] During use, first install the mold body 1, then turn and open the box cover 502, then add the demolding agent into the liquid storage tank 501, then turn the box cover 502 back, then manually apply the demolding agent into the model groove of the mold body 1 for the first time, then control the two mold bodies 1 to close, then inject the molten plastic through the injection hole 101 between the two mold bodies 1, so that the molten plastic is molded in the model groove between the two mold bodies 1. When the molten plastic is formed into a plastic product, then control the two mold bodies 1 to open, then drive the movable plate 3 to move towards the side close to the piston cylinder 6 through the electric push rod 2, so that the movable plate 3 drives the first piston rod 7, the demolding rod 4, the inner pipe 9, the sleeve 11 and the nozzle 12 to move synchronously, so that the demolding rod 4 pushes out the plastic product formed in the model groove through the sleeve 11, so as to realize automatically demolding the plastic product. At the same time, the first piston rod 7 will extrude the air in the piston cylinder 6 through the through hole, so that a negative pressure state appears in the piston cylinder 6. At this time, blocked by the second one-way valve 1002, the piston cylinder 6 can only draw out the demolding agent in the liquid storage tank 501 through the infusion pipe 504 and the first one-way valve 505, so that the demolding agent enters the piston cylinder 6. At the same time, when the sleeve 11 moves synchronously with the movable plate 3, the sleeve 11 will drive the threaded barrel 1301 to move synchronously, so that the threaded barrel 1301 moves towards the side close to the fixing ring 1302. When the balls 1303 in the fixing ring 1302 are stuck into the threaded grooves of the threaded barrel 1301, as the threaded barrel 1301 continues to move, the balls 1303 will use the threaded grooves to squeeze the threaded barrel 1301 to rotate, so as to drive the sleeve 11 and the nozzle 12 to rotate; After that, the electric push rod 2 is used to drive the movable plate 3 to move back to the side away from the piston cylinder 6, so that the movable plate 3 drives the first piston rod 7, the demolding rod 4, the inner tube 9, the sleeve 11 and the nozzle 12 to move back synchronously. Thus, the first piston rod 7 squeezes the demolding agent in the piston cylinder 6. At this time, the outside air will return to the piston cylinder 6 through the through hole to balance the air pressure in the piston cylinder 6. And blocked by the first one-way valve 505, so that the demolding agent in the piston cylinder 6 can only enter the first channel 8 after being squeezed. Then, the demolding agent in the first channel 8 will pass through the second one-way valve 1002, the pipeline 1001 and the inner tube 9 in sequence and enter the nozzle 12, and then be sprayed into the model groove of the mold body 1 by the nozzle 12, so as to realize automatic spraying of the demolding agent, so that the plastic products formed next time in the model groove can be demolded. At the same time, when the sleeve 11 moves synchronously with the movable plate 3, the sleeve 11 will drive the threaded cylinder 1301 to move back synchronously, so that the ball 1303 squeezes the threaded cylinder 1301 through the thread groove to reverse and reset, thereby driving the sleeve 11 and the nozzle 12 to reverse and reset, so that the nozzle 12 can evenly spray the demolding agent in the model groove of the mold body 1 to prevent uneven spraying of the demolding agent. When the ball 1303 in the fixed ring 1302 leaves the thread groove of the threaded cylinder 1301, the threaded cylinder 1301, the sleeve 11 and the nozzle 12 stop reversing; In this way, by spraying the demolding agent in the above manner, not only can the formed plastic products be pushed out through the movement of the demolding rod 4 and the sleeve 11, which is convenient for demolding the plastic products this time, but also the demolding agent can be automatically sprayed into the model groove when the demolding rod 4 and the sleeve 11 move back, so as to demold the plastic products next time.

[0039] See Figure 9 and Figure 10 As shown, it further includes a limiting mechanism, and the limiting mechanism includes a clamping block 14 and a first spring 15; Four clamping blocks 14 are arranged on the side of the movable plate 3 facing the threaded cylinder 1301 at intervals and slidably; A first spring 15 is connected between the clamping block 14 and the movable plate 3; Card slots 16 are formed between each of the four threaded cylinders 1301 and the adjacent sleeves 11. By clamping the clamping block 14 into the card slot 16, the sleeve 11 and the threaded cylinder 1301 can be limited.

[0040] By setting a limit mechanism, when the sleeve 11 and the threaded barrel 1301 rotate, the sleeve 11 and the threaded barrel 1301 will squeeze the clamping block 14 to move, causing the clamping block 14 to leave the clamping groove 16, so that the first spring 15 is compressed; when the sleeve 11 and the threaded barrel 1301 rotate and reset, the clamping block 14 will align with the clamping groove 16. At this time, the first spring 15 returns to its original state, and the first spring 15 drives the clamping block 14 to move and reset, so that the clamping block 14 is reinserted into the clamping groove 16, thereby limiting the sleeve 11 and the threaded barrel 1301, and further preventing the sleeve 11 from rotating due to vibration, and avoiding deviation of the end face of the sleeve 11 due to rotation, which affects the molding of plastic products.

[0041] See Figures 11-14 As shown, it further includes a recycling mechanism. The recycling mechanism includes a second piston rod 17, a connecting pipe 20, a connecting rod 21 and a positioning member; a second piston rod 17 is also slidably arranged on the piston cylinder 6. The second piston rod 17 is slidably connected to the first piston rod 7. The second piston rod 17 is symmetrically provided with grooves 18 in the front and rear; a second channel 19 is opened in the second piston rod 17; both ends of the connecting pipe 20 are respectively communicated with the second channel 19 in the second piston rod 17 and the infusion pipe 504; three connecting rods 21 are spacedly connected to the end of the second piston rod 17. The connecting rods 21 are located inside the piston cylinder 6, and all three connecting rods 21 are in contact with the first piston rod 7; the positioning member includes a clamping plate 2201 and a second spring 2202. Two clamping plates 2201 are slidably arranged on the front side inside the mold body 1. The two clamping plates 2201 are distributed in the front and rear. The clamping plate 2201 is used to be inserted into the groove 18 to limit the second piston rod 17; a second spring 2202 is connected between the clamping plate 2201 and the inner side of the mold body 1.

[0042] See Figure 11 and Figure 15 As shown, a first strip-shaped groove 23 is opened on the side of the movable plate 3 facing the connecting pipe 20; a second strip-shaped groove 24 is opened on the inner side of the mold body 1. The spaces in the first strip-shaped groove 23 and the second strip-shaped groove 24 are both used for the connecting pipe 20 to move, so as to prevent the connecting pipe 20 from being severely deformed due to the extrusion of the movable plate 3 and the mold body 1, thereby avoiding affecting the infusion of the release agent by the connecting pipe 20.

[0043] By setting up a recycling mechanism, when the movable plate 3 drives the first piston rod 7 to move towards the side close to the piston cylinder 6, the first piston rod 7 will separate from the connecting rod 21, and the mold release agent drawn into the piston cylinder 6 will also be located between the right end of the second piston rod 17 and the first piston rod 7. When the first piston rod 7 contacts the left end of the second piston rod 17, the first piston rod 7 will drive the second piston rod 17 and the connecting rod 21 to move synchronously. When the end face of the second piston rod 17 connected with the connecting rod 21 exceeds the connection between the piston cylinder 6 and the infusion tube 504, at this time, the mold release agent drawn into the piston cylinder 6 will be located between the left and right ends of the second piston rod 17. In this way, the mold release agent in the piston cylinder 6 is divided into two parts. When the second piston rod 17 contacts the clamping plate 2201, the second piston rod 17 will squeeze the two clamping plates 2201 to move away from each other, and the second spring 2202 is compressed. When the clamping plate 2201 aligns with the groove 18 on the second piston rod 17, the second spring 2202 returns to its original state, and the second spring 2202 drives the two clamping plates 2201 to move closer and reset, so that the clamping plate 2201 is snapped into the groove 18 to limit the second piston rod 17. Then, when the movable plate 3 drives the first piston rod 7 to move back to the side away from the piston cylinder 6 to reset, the first piston rod 7 will gradually separate from the left end of the second piston rod 17. At the same time, the first piston rod 7 will squeeze the mold release agent between the right end of the second piston rod 17 and the first piston rod 7. Since the second piston rod 17 is limited by the clamping plate 2201, the mold release agent between the right end of the second piston rod 17 and the first piston rod 7 can only be discharged through the first channel 8 after being pressed, so that the nozzle 12 sprays this part of the mold release agent into the model groove of the mold body 1. When the first piston rod 7 contacts the connecting rod 21, the first piston rod 7 will squeeze the connecting rod 21 and the second piston rod 17 to move back to reset, so that the second piston rod 17 squeezes the mold release agent between them, so that this part of the mold release agent returns to the infusion tube 504 through the second channel 19 and the connecting tube 20, so as to recycle this part of the mold release agent. The significance of dividing the mold release agent in the piston cylinder 6 into two parts in the above way: Since the nozzle 12 is in a continuous spraying state when following the sleeve 11 to move back to reset, this will cause the nozzle 12 to spray some mold release agent inside the mold body 1 when the nozzle 12 retracts into the mold body 1, resulting in waste of the mold release agent. Therefore, by dividing the mold release agent in the piston cylinder 6 into two parts in the above way, the nozzle 12 only sprays a part of the mold release agent into the model groove of the mold body 1. During the time when the nozzle 12 retracts into the mold body 1, this part of the originally sprayed mold release agent will return to the infusion tube 504. In this way, the mold release agent can be saved.

[0044] The above embodiments are only used to illustrate the technical concept and features of the present invention, and the purpose is to enable those skilled in the art to understand the content of the present invention and implement it accordingly. It is not intended to limit the protection scope of the present invention. Any equivalent changes or modifications made according to the spirit and essence of the present invention should be covered within the protection scope of the present invention.

Claims

1. A plastic mold facilitating demolding, comprising a mold body (1), the number of the mold bodies (1) being two, and an injection hole (101) being formed in one of the mold bodies (1), characterized in that, Electric push rods (2) are symmetrically arranged on the mold body (1). A movable plate (3) is slidably arranged in the mold body (1). The movable plate (3) is connected to the telescopic rod of the electric push rod (2). Demolding rods (4) are connected to the movable plate (3) at intervals. The demolding rods (4) are used to push out the plastic products that have completed injection molding in the mold body (1). A liquid storage mechanism for storing demolding agent is arranged in the mold body (1). A piston cylinder (6) is also arranged on the mold body (1). A first piston rod (7) is slidably arranged on the piston cylinder (6). The end of the first piston rod (7) is connected to the movable plate (3). The first piston rod (7) is movable to draw the demolding agent in the liquid storage mechanism into the piston cylinder (6). A first channel (8) is opened in the first piston rod (7). An inner tube (9) is arranged in the demolding rod (4). A feeding mechanism is arranged in the movable plate (3). The feeding mechanism is used to send the demolding agent in the piston cylinder (6) into the inner tube (9) through the first channel (8). A sleeve (11) is rotatably arranged on the demolding rod (4). A spray head (12) is arranged on the sleeve (11). The spray head (12) is rotatably connected to the end of the demolding rod (4), and the spray head (12) is rotatably communicated with the inner tube (9). The spray head (12) is used to spray the demolding agent. A rotating mechanism is arranged on the sleeve (11). The rotating mechanism is used to drive the spray head (12) to rotate.

2. A plastic mold facilitating demolding according to claim 1, characterized in that, The liquid storage mechanism includes a liquid storage tank (501), a tank cover (502), a liquid delivery pipe (504) and a first one-way valve (505). The liquid storage tank (501) is arranged inside the mold body (1). The tank cover (502) is installed on the liquid storage tank (501) by threading. An air hole (503) is opened on the tank cover (502). The piston cylinder (6) is communicated with the liquid storage tank (501) through the liquid delivery pipe (504), and the first one-way valve (505) is arranged on the liquid delivery pipe (504).

3. A plastic mold facilitating demolding according to claim 2, characterized in that, The feeding mechanism includes a pipeline (1001) and a second one-way valve (1002). The pipeline (1001) is arranged inside the movable plate (3). The inner tube (9) is communicated with the first channel (8) in the first piston rod (7) through the pipeline (1001). The second one-way valve (1002) is arranged on the pipeline (1001).

4. A plastic mold facilitating demolding according to claim 3, characterized in that, The rotating mechanism includes a threaded cylinder (1301), a fixed ring (1302) and a ball (1303). The threaded cylinder (1301) is arranged on the outer side of the sleeve (11). Thread grooves are opened on the outer side of the threaded cylinder (1301). Fixed rings (1302) are arranged at intervals on the inner side of the mold body (1). The balls (1303) are inlaid on the inner side of the fixed rings (1302). The balls (1303) are used to be stuck into the thread grooves of the threaded cylinder (1301).

5. A plastic mold facilitating demolding according to claim 4, characterized in that, It further includes a limiting mechanism, which includes a clamping block (14) and a first spring (15). The clamping block (14) is slidably arranged at intervals on the movable plate (3). A first spring (15) is connected between the clamping block (14) and the movable plate (3). A clamping groove (16) is formed between the sleeve (11) and the threaded barrel (1301). The sleeve (11) and the threaded barrel (1301) are limited by the clamping block (14) being inserted into the clamping groove (16).

6. A plastic mold facilitating demolding according to claim 5, characterized in that, It further includes a recycling mechanism, which includes a second piston rod (17), a connecting pipe (20), a connecting rod (21) and a positioning member. The second piston rod (17) is also slidably arranged on the piston barrel (6). The second piston rod (17) is slidably connected to the first piston rod (7). A groove (18) is formed on the second piston rod (17). A second channel (19) is formed inside the second piston rod (17). The second channel (19) inside the second piston rod (17) is communicated with the infusion pipe (504) through the connecting pipe (20). The connecting rod (21) is connected to the end of the second piston rod (17) at intervals. The connecting rod (21) is located inside the piston barrel (6). A positioning member is arranged inside the mold body (1), and the positioning member is used to limit the second piston rod (17).

7. A plastic mold facilitating demolding according to claim 6, characterized in that, The positioning member includes a clamping plate (2201) and a second spring (2202). The clamping plate (2201) is slidably arranged at intervals inside the mold body (1). The clamping plate (2201) is used to be inserted into the groove (18) to limit the second piston rod (17). A second spring (2202) is connected between the clamping plate (2201) and the inner side of the mold body (1).

8. A plastic mold facilitating demolding according to claim 7, characterized in that, A first strip-shaped groove (23) is formed on the movable plate (3). A second strip-shaped groove (24) is formed inside the mold body (1). The spaces inside the first strip-shaped groove (23) and the second strip-shaped groove (24) are both used for the connecting pipe (20) to move.

Images