Injection mold with rapid demolding function

Abstract

The utility model discloses an injection mold with a quick demolding function, which comprises a lower mold base, a demolding device is arranged on the inner side of the lower mold base, an adjusting device is arranged on one side of the lower mold base, the adjusting device comprises a fixed pipe, a connecting pipe, a sliding sleeve, a threaded sleeve, an elastic plate, a movable plate, a connecting plate and a rotary sleeve, the sliding sleeve is arranged on the outer side of the fixed pipe, and the threaded sleeve is arranged on the outer side of the threaded sleeve. The threaded sleeve is connected with the fixed pipe through threads, the two ends of the elastic plate are connected with the threaded sleeve and the movable plate, the connecting plate is connected to the inner side of the rotating sleeve, and a protection mechanism is arranged on the outer side of the fixed pipe and comprises a receding groove, an arc-shaped groove, a limiting rod, a rotating plate, a limiting plate, a positioning rod, a positioning groove and a connecting spring. The limiting plate is connected to one end of the limiting rod, one end of the positioning rod is connected with the outer side of the rotating sleeve through the connecting spring, the multiple positioning grooves are formed in the outer side of the fixing pipe, a more efficient demolding function can be provided, meanwhile, accurate control over the cooling effect is ensured, and therefore the production efficiency and the product quality are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of injection molds with rapid demolding function, and more specifically, it relates to an injection mold with rapid demolding function. Background Technique

[0002] In the plastic injection molding process, the design of the mold is crucial for the quality and production efficiency of the product. There are some deficiencies in the demolding function of the existing injection molds, which may affect the production efficiency and product quality.

[0003] Firstly, the existing injection molds are usually inconvenient in demolding. Due to the simple structure, the demolding process may take a long time, which will undoubtedly reduce the production efficiency. In a fast-paced production environment, such a low-efficiency demolding process may cause the production line to stagnate, thus affecting the entire production plan.

[0004] Secondly, in order to accelerate the cooling of the mold and the product, some devices in the prior art adopt the water-cooling method. However, the structures of these devices are often too simple, lacking the flexible control ability of the input speed and output speed of the cooling water. The limitations of this design may lead to poor cooling effect, which in turn affects the dimensional accuracy and surface quality of the product. In addition, the inability to precisely control the cooling water flow may cause uneven temperature distribution inside the mold, affecting the consistency of product quality.

[0005] In addition, in order to solve the above problems, some mechanisms have emerged in the market to achieve the adjustment of the cooling water flow rate. However, these mechanisms are often simple in structure and low in stability. During the operation of the equipment, due to the influence of various factors such as equipment vibration, these mechanisms may become loose, resulting in changes in the adjusted flow rate. This instability may have an adverse effect on the cooling effect of the mold and the product, and thus affect the product quality. Content of the Utility Model

[0006] (I) Technical Problems to be Solved

[0007] Aiming at the problems existing in the prior art, the utility model provides an injection mold with rapid demolding function to solve the technical problems mentioned in the background technique.

[0008] (II) Technical Solutions

[0009] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an injection mold with a quick demoulding function, comprising a lower mold base, characterized in that: a demoulding device is arranged on the inner side of the lower mold base, an adjusting device is arranged on one side of the lower mold base, the adjusting device comprises a fixed tube, a connecting tube, a sliding sleeve, a threaded sleeve, an elastic plate, a movable plate, a connecting plate and a rotating sleeve, the two sides of the rotating sleeve are respectively connected to the fixed tube and the connecting tube for rotation, the sliding sleeve is slidably arranged on the outer side of the fixed tube, the threaded sleeve is movably connected to the inner wall of the fixed tube through a thread, the two ends of the elastic plate are respectively connected to the threaded sleeve and the movable plate, and the movable plate is rotatable. The movable type is arranged on the inner side of the rotating sleeve, the connecting plate is fixedly connected to the inner side of the rotating sleeve, and a protective mechanism is arranged on the outer side of the fixed tube, and the protective mechanism includes a yield groove, an arc groove, a limit rod, a rotating plate, a limit plate, a positioning rod, a positioning groove and a connecting spring. The yield groove is opened at one end of the arc groove, and the arc groove is opened on one side of the rotating plate. The limit rod is connected to one side of the sliding sleeve, and the rotating plate is rotatably sleeved on the outside of the connecting tube, the limit plate is connected to one end of the limit rod, and one end of the positioning rod is connected to the outer side of the rotating sleeve through a connecting spring, and the other end of the positioning rod is engaged in the positioning groove, and multiple positioning grooves are opened on the outside of the fixed tube.

[0010] The utility model is further configured that an upper die seat is provided above the lower die seat.

[0011] The utility model is further configured that a slide rail is provided on the outer side of the fixed tube, a slide groove is provided on the inner side of the slide sleeve, and the slide groove is adapted to the slide rail.

[0012] The utility model is further configured that a fixing plate is provided on the outside of the fixing tube, a tension spring is connected to one side of the fixing plate, and the other end of the tension spring is connected to the sliding sleeve. The configuration of the fixing plate and the tension spring simplifies the operation process.

[0013] The utility model is further configured that a ridge rod is connected to one side of the connecting plate, a ridge sleeve is provided on the inner side of the threaded sleeve, and the ridge rod slides through the inner side of the ridge sleeve.

[0014] The utility model is further configured as follows: the demoulding device includes a material core, a top block, a hydraulic cylinder and a hydraulic rod; the material core is installed above the lower die seat; the top block is movably installed on the inner side of the material core; the hydraulic rod is detachably installed on the inner side of the lower die seat; the bottom end of the hydraulic rod is connected to the output end of the hydraulic cylinder; the top end of the hydraulic rod is connected to the bottom end of the top block; the configuration of the demoulding device improves the efficiency of the demoulding work.

[0015] The utility model is further configured such that a water inlet pipe is provided on one side of the material core, a cooling cavity is opened on the inner side of the material core, an output end of the water inlet pipe is connected with the cooling cavity, and the configuration of the water inlet pipe and the cooling cavity accelerates the cooling efficiency of the product.

[0016] The present utility model is further configured such that a communication pipe is provided inside the core, both ends of the communication pipe are communicated with two layers of cooling cavities respectively, a water outlet pipe is provided on one side of the water inlet pipe, and one end of the water outlet pipe is connected to the output end of the other cooling cavity.

[0017] (III) Advantageous Effects

[0018] Compared with the prior art, the present utility model provides an injection mold with a rapid demolding function, and has the following advantageous effects:

[0019] 1. The advantageous effect of the demolding device is that it can achieve a rapid and efficient demolding process. Through the design of the core, the ejector block, the hydraulic cylinder and the hydraulic rod, the demolding device can eject the product within a short time, thereby improving the production efficiency. The setting of the core provides a forming space for the product. The combined use of the hydraulic cylinder, the hydraulic rod and the ejector block can provide sufficient ejection force to ensure that the product can be smoothly ejected from the mold. In addition, the setting of the water inlet pipe and the cooling cavity, and the connection of the communication pipe and the water outlet pipe, accelerate the cooling speed of the product and the mold, and further improve the demolding efficiency.

[0020] 2. The advantageous effect of the adjusting device is that it can accurately control the input and output speed of the cooling water. Through the design of the fixed pipe, the connecting pipe, the sliding sleeve, the threaded sleeve, the elastic plate, the movable plate, the connecting plate and the rotating sleeve, the adjusting device can adjust the flow rate of the cooling water according to needs to ensure the cooling effect of the mold and the product. This design not only improves the quality of the product, but also increases the flexibility of use.

[0021] 3. The advantageous effect of the protection mechanism is that it can improve the stability and durability of the adjusting device. Through the design of the relief groove, the arc groove, the limiting rod, the rotating plate, the limiting plate, the positioning rod, the positioning groove and the connecting spring, the protection mechanism can provide stable limiting during the operation of the equipment to ensure the firmness of the adjusting device. This design not only improves the reliability of the adjustment process, but also increases the safety of the user. Through the setting of the protection mechanism, it is possible to prevent the equipment from loosening due to vibration and other reasons, ensure the stability of the cooling water flow rate, and thus guarantee the quality of the product and the production efficiency. Description of the Drawings

[0022] Figure 1 is the overall structural schematic diagram of an injection mold with a rapid demolding function in the present utility model;

[0023] Figure 2 is Figure 1 the partial enlarged structural schematic diagram at A in

[0024] Figure 3 is the sectional structural schematic diagram of the present utility model;

[0025] Figure 4It is a schematic diagram of the cross-sectional structure of the core part of the utility model;

[0026] Figure 5 It is a cross-sectional structural diagram of the adjusting device and the protective mechanism in the utility model;

[0027] Figure 6 for Figure 5 Schematic diagram of the local enlarged structure at point B in the middle.

[0028] In the figure: 1. lower die seat; 2. fixed pipe; 3. connecting pipe; 4. sliding sleeve; 5. threaded sleeve; 6. elastic plate; 7. movable plate; 8. connecting plate; 9. rotating sleeve; 10. clearance groove; 11. arc groove; 12. limiting rod; 13. rotating plate; 14. limiting plate; 15. positioning rod; 16. positioning groove; 17. connecting spring; 18. upper die seat; 19. slide rail; 20. slide groove; 21. fixed plate; 22. tension spring; 23. rib rod; 24. rib sleeve; 25. material core; 26. top block; 27. hydraulic cylinder; 28. hydraulic rod; 29. water inlet pipe; 30. cooling chamber; 31. connecting pipe; 32. water outlet pipe. DETAILED DESCRIPTION

[0029] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application can be combined with each other. The present utility model will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0030] It should be noted that, unless otherwise specified, all technical and scientific terms used in this application have the same meanings as commonly understood by ordinary technicians in the technical field to which this application belongs.

[0031] In the present invention, unless otherwise specified, directions such as "up" and "down" are usually used in reference to the directions shown in the drawings, or in reference to the vertical, perpendicular or gravity direction; similarly, for ease of understanding and description, "left" and "right" are usually used in reference to the left and right shown in the drawings; "inside" and "outside" refer to the inside and outside relative to the outline of each component itself, but the above-mentioned directions are not used to limit the present invention.

[0032] See also Figures 1-6, an injection mold with a quick demoulding function, including a lower mold base 1, characterized in that: a demoulding device is arranged on the inner side of the lower mold base 1, and an adjusting device is arranged on one side of the lower mold base 1, the adjusting device includes a fixed tube 2, a connecting tube 3, a sliding sleeve 4, a threaded sleeve 5, an elastic plate 6, a movable plate 7, a connecting plate 8 and a rotating sleeve 9, the two sides of the rotating sleeve 9 are respectively connected to the fixed tube 2 and the connecting tube 3 for rotation, the sliding sleeve 4 is slidably arranged on the outer side of the fixed tube 2, the threaded sleeve 5 is movably connected to the inner wall of the fixed tube 2 through a thread, the two ends of the elastic plate 6 are respectively connected to the threaded sleeve 5 and the movable plate 7, the movable plate 7 is rotatably arranged on the inner side of the rotating sleeve 9, and the connecting plate 8 is fixedly connected to the rotating sleeve 9. A protective mechanism is arranged on the inner side of the rotating sleeve 9 and the outer side of the fixed tube 2, and the protective mechanism includes a yielding groove 10, an arc groove 11, a limiting rod 12, a rotating plate 13, a limiting plate 14, a positioning rod 15, a positioning groove 16 and a connecting spring 17. The yielding groove 10 is arranged at one end of the arc groove 11, the arc groove 11 is arranged on one side of the rotating plate 13, the limiting rod 12 is connected to one side of the sliding sleeve 4, the rotating plate 13 is rotatably sleeved on the outside of the connecting tube 3, the limiting plate 14 is connected to one end of the limiting rod 12, one end of the positioning rod 15 is connected to the outer side of the rotating sleeve 9 through the connecting spring 17, and the other end of the positioning rod 15 is engaged in the positioning groove 16, and multiple positioning grooves 16 are arranged on the outside of the fixed tube 2.

[0033] An upper die seat 18 is provided above the lower die seat 1 .

[0034] A slide rail 19 is disposed on the outer side of the fixed tube 2 , and a slide groove 20 is provided on the inner side of the slide sleeve 4 , and the slide groove 20 is adapted to the slide rail 19 .

[0035] A fixing plate 21 is disposed outside the fixing tube 2 . A tension spring 22 is connected to one side of the fixing plate 21 . The other end of the tension spring 22 is connected to the sliding sleeve 4 .

[0036] A ridge rod 23 is connected to one side of the connecting plate 8 , a ridge sleeve 24 is provided on the inner side of the threaded sleeve 5 , and the ridge rod 23 slides through the inner side of the ridge sleeve 24 .

[0037] In this embodiment, when it is necessary to adjust the input and output speeds of the cooling water, first rotate the rotating plate 13, so that the rotating plate 13 drives the arc-shaped groove 11 and the relief groove 10 to move. When the position of the relief groove 10 corresponds to the position of the limiting plate 14, the tension spring 22 provided on one side of the fixed plate 21 pulls the sliding sleeve 4 to move along the slide rail 19 and the chute 20. Then the sliding sleeve 4 drives the limiting rod 12 and the limiting plate 14 to pass through the relief groove 10. Then the outer side of the positioning rod 15 loses the limit of the inner wall of the sliding sleeve 4. Then rotate the rotating sleeve 9, and the rotating sleeve 9 drives the positioning rod 15 to move. Due to the rounded corner structure design of the end of the positioning rod 15 and the side wall of the positioning groove 16, and the connecting spring 17 only provides a weak restoring force, then the side wall of the positioning groove 16 squeezes the end of the positioning rod 15, so that one end of the positioning rod 15 slides out of the positioning groove 16. At the same time, the other end of the positioning rod 15 drives the connecting spring 17 to stretch. At the same time, the rotating sleeve 9 drives the prism rod 23 to rotate through the connecting plate 8 provided on the inner side. Then the prism rod 23 drives the threaded sleeve 5 to rotate through the prism sleeve 24. Since the outer side of the threaded sleeve 5 and the inner wall of the fixed tube 2 are movably connected by threads, then the threaded sleeve 5 will slide spirally along the inner wall of the fixed tube 2. Then the distance between the threaded sleeve 5 and the movable plate 7 will change, and then the gap between the elastic plates 6 will change, so that the cross-sectional area at the corresponding position in the fixed tube 2 changes, thereby changing the conveying speed of the cooling water. After adjusting to the appropriate value, stop rotating the rotating sleeve 9. Then the connecting spring 17 drives the positioning rod 15 to reset, so that the other end of the positioning rod 15 is engaged with the corresponding positioning groove 16. Then pull the sliding sleeve 4, so that the sliding sleeve 4 resets along the slide rail 19 and the chute 20. Then the sliding sleeve 4 drives the tension spring 22 provided on one side to stretch. At the same time, the sliding sleeve 4 drives the limiting rod 12 and the limiting plate 14 to pass through the relief groove 10. When the tension spring 22 is stretched to the limit, the limiting plate 14 just moves to the other side of the rotating plate 13. Then rotate the rotating plate 13 in the reverse direction, and the rotating plate 13 drives the arc-shaped groove 11 and the relief groove 10 to move, so that the limiting rod 12 enters the arc-shaped groove 11. At the same time, the sliding sleeve 4 is clamped on one side of the rotating plate 13 through the limiting plate 14 and the limiting rod 12, thereby realizing the stable limit of the sliding sleeve 4. At the same time, the inner wall of the sliding sleeve 4 limits the positioning rod 15, preventing one end of the positioning rod 15 from sliding out of the positioning groove 16, so that the positioning rod 15 and the positioning groove 16 cooperate to stably limit the rotating sleeve 9, thereby preventing the adjusted flow rate from changing and ensuring the stability of the equipment during use.

[0038] Please refer to Figures 1-4 , as an implementation manner of the demolding device: The demolding device includes a core 25, a top block 26, a hydraulic cylinder 27 and a hydraulic rod 28. The core 25 is installed above the lower mold base 1. The top block 26 is movably installed inside the core 25. The hydraulic rod 28 is detachably installed inside the lower mold base 1. The bottom end of the hydraulic rod 28 is connected to the output end of the hydraulic cylinder 27, and the top end of the hydraulic rod 28 is connected to the bottom end of the top block 26.

[0039] One side of the material core 25 is provided with a water inlet pipe 29. A cooling cavity 30 is formed inside the material core 25. The output end of the water inlet pipe 29 is communicated with the cooling cavity 30.

[0040] A communicating pipe 31 is formed inside the material core 25. Both ends of the communicating pipe 31 are respectively communicated with two layers of cooling cavities 30. One side of the water inlet pipe 29 is provided with a water outlet pipe 32. One end of the water outlet pipe 32 is connected to the output end of another cooling cavity 30.

[0041] More specifically, when the equipment needs to be used, first, the upper die base 18 and the lower die base 1 are closed by an external driving device. Then, the heated liquid is injected into the material core 25. Then, cooling water is injected into the cooling cavity 30 through the water inlet pipe 29 by an external conveying device. Then, it flows into the input end of the second-layer cooling cavity 30 through the communicating pipe 31 connected to the output end of the first-layer cooling cavity 30, and then is discharged through the water outlet pipe 32 after flowing through the second-layer cooling cavity 30, so as to accelerate the cooling speed of the product and the mold. After cooling, the upper die base 18 is lifted by an external driving device. Then, the hydraulic cylinder 27 installed in the lower die base 1 is synchronously opened. The hydraulic cylinder 27 drives the ejector block 26 to move inside the material core 25 through the hydraulic rod 28 connected to the output end, so as to eject the formed product above the material core 25, thus realizing rapid demolding.

[0042] In summary, when the overall device is in use or operation: when it is necessary to adjust the input and output speeds of the cooling water, first rotate the rotating plate 13, so that the rotating plate 13 drives the arc-shaped groove 11 and the relief groove 10 to move. When the position of the relief groove 10 corresponds to the position of the limiting plate 14, the tension spring 22 provided on one side of the fixing plate 21 pulls the sliding sleeve 4 to move along the slide rail 19 and the chute 20. Then the sliding sleeve 4 drives the limiting rod 12 and the limiting plate 14 to pass through the relief groove 10. Then the outer side of the positioning rod 15 loses the limitation of the inner wall of the sliding sleeve 4. Then rotate the rotating sleeve 9, and the rotating sleeve 9 drives the positioning rod 15 to move. Due to the rounded corner structure design of the end of the positioning rod 15 and the side wall of the positioning groove 16, and the connecting spring 17 only provides a weak restoring force, then the side wall of the positioning groove 16 squeezes the end of the positioning rod 15, so that one end of the positioning rod 15 slides out of the positioning groove 16. At the same time, the other end of the positioning rod 15 drives the connecting spring 17 to stretch. At the same time, the rotating sleeve 9 drives the prism rod 23 to rotate through the connecting plate 8 provided on the inner side. Then the prism rod 23 drives the threaded sleeve 5 to rotate through the prism sleeve 24. Since the outer side of the threaded sleeve 5 and the inner wall of the fixed pipe 2 are movably connected by threads, then the threaded sleeve 5 slides spirally along the inner wall of the fixed pipe 2. Then the distance between the threaded sleeve 5 and the movable plate 7 changes, and then the gap between the elastic plates 6 changes, so that the cross-sectional area at the corresponding position in the fixed pipe 2 changes, thereby changing the conveying speed of the cooling water. After adjusting to the appropriate value, stop rotating the rotating sleeve 9. Then the connecting spring 17 drives the positioning rod 15 to reset, so that the other end of the positioning rod 15 is engaged with the corresponding positioning groove 16. Then pull the sliding sleeve 4, so that the sliding sleeve 4 resets along the slide rail 19 and the chute 20. Then the sliding sleeve 4 drives the tension spring 22 provided on one side to stretch. At the same time, the sliding sleeve 4 drives the limiting rod 12 and the limiting plate 14 to pass through the relief groove 10. When the tension spring 22 is stretched to the limit, the limiting plate 14 just moves to the other side of the rotating plate 13. Then rotate the rotating plate 13 in the reverse direction, and the rotating plate 13 drives the arc-shaped groove 11 and the relief groove 10 to move, so that the limiting rod 12 enters the arc-shaped groove 11. At the same time, the sliding sleeve 4 is engaged with one side of the rotating plate 13 through the limiting plate 14 and the limiting rod 12, thereby realizing the stable limitation of the sliding sleeve 4. At the same time, the inner wall of the sliding sleeve 4 limits the positioning rod 15, preventing one end of the positioning rod 15 from sliding out of the positioning groove 16, so that the positioning rod 15 and the positioning groove 16 cooperate to stably limit the rotating sleeve 9, thereby preventing the adjusted flow rate from changing and ensuring the stability of the device during use.

[0043] When the device is needed, firstly, the upper mold base 18 and the lower mold base 1 are molded together by an external driving device, and then the heated liquid is injected into the material core 25, and then the cooling water is injected into the cooling chamber 30 through the water inlet pipe 29 through the external conveying equipment, and then flows into the input end of the second cooling chamber 30 through the connecting pipe 31 connected to the output end of the first cooling chamber 30, and then is discharged through the water outlet pipe 32 after flowing through the second cooling chamber 30, thereby accelerating the cooling speed of the product and the mold. After cooling, the upper mold base 18 is raised by the external driving device, and then the hydraulic cylinder 27 installed in the lower mold base 1 is opened synchronously, and the hydraulic cylinder 27 pushes the ejector block 26 to move inside the material core 25 through the hydraulic rod 28 connected to the output end, thereby ejecting the molded product to the top of the material core 25, thereby realizing rapid demolding.

[0044] In all the schemes mentioned above, the connection between two parts can be selected according to actual conditions by welding, bolt and nut matching connection, bolt or screw connection or other well-known connection methods, which are not described here one by one. In the above, all fixed connections are preferably welded. Although the embodiments of the utility model have been shown and described, it can be understood by ordinary technicians in this field that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the utility model. The scope of the utility model is defined by the attached claims and their equivalents.

Claims

1. An injection mold with a fast demolding function, including a lower mold base (1), characterized in that: A demoulding device is arranged on the inner side of the lower die base (1), and an adjusting device is arranged on one side of the lower die base (1). The adjusting device comprises a fixed tube (2), a connecting tube (3), a sliding sleeve (4), a threaded sleeve (5), an elastic plate (6), a movable plate (7), a connecting plate (8) and a rotating sleeve (9). The sliding sleeve (4) is arranged on the outer side of the fixed tube (2), the threaded sleeve (5) is connected to the fixed tube (2) through a thread, the two ends of the elastic plate (6) are connected to the threaded sleeve (5) and the movable plate (7), the connecting plate (8) is connected to the inner side of the rotating sleeve (9), and a protective mechanism is arranged on the outer side of the fixed tube (2). The mechanism comprises a clearance groove (10), an arc groove (11), a limiting rod (12), a rotating plate (13), a limiting plate (14), a positioning rod (15), a positioning groove (16) and a connecting spring (17); the clearance groove (10) is arranged at one end of the arc groove (11); the limiting rod (12) is connected to one side of a sliding sleeve (4); the rotating plate (13) is sleeved on the outside of a connecting pipe (3); the limiting plate (14) is connected to one end of the limiting rod (12); one end of the positioning rod (15) is connected to the outside of a rotating sleeve (9) through a connecting spring (17); and a plurality of positioning grooves (16) are arranged on the outside of a fixed pipe (2).

2. The injection mold with a rapid demolding function according to claim 1, characterized in that: An upper die seat (18) is provided above the lower die seat (1).

3. The injection mold with a fast demolding function according to claim 1, characterized in that: A slide rail (19) is provided on the outside of the fixed tube (2), and a slide groove (20) is provided on the inside of the slide sleeve (4), wherein the slide groove (20) is adapted to fit the slide rail (19).

4. The injection mold with a fast demolding function according to claim 3, characterized in that: A fixing plate (21) is provided on the outside of the fixing tube (2), one side of the fixing plate (21) is connected to a tension spring (22), and the other end of the tension spring (22) is connected to the sliding sleeve (4).

5. The injection mold with a rapid demolding function according to claim 4, characterized in that: A ridge rod (23) is connected to one side of the connecting plate (8), a ridge sleeve (24) is provided on the inner side of the threaded sleeve (5), and the ridge rod (23) slides through the inner side of the ridge sleeve (24).

6. An injection mold with a fast demolding function according to any one of claims 1-5, characterized in that: The demoulding device comprises a material core (25), a top block (26), a hydraulic cylinder (27) and a hydraulic rod (28); the material core (25) is mounted above the lower die base (1); the top block (26) is movably mounted on the inner side of the material core (25); the hydraulic rod (28) is detachably mounted on the inner side of the lower die base (1); the bottom end of the hydraulic rod (28) is connected to the output end of the hydraulic cylinder (27); and the top end of the hydraulic rod (28) is connected to the bottom end of the top block (26).

7. The injection mold with a rapid demolding function according to claim 6, characterized in that: A water inlet pipe (29) is provided on one side of the material core (25), a cooling cavity (30) is provided on the inner side of the material core (25), and an output end of the water inlet pipe (29) is in communication with the cooling cavity (30).

8. An injection mold with a fast demolding function according to claim 7, characterized in that: A connecting pipe (31) is provided in the material core (25), and both ends of the connecting pipe (31) are respectively connected to the two layers of cooling chambers (30). A water outlet pipe (32) is provided on one side of the water inlet pipe (29), and one end of the water outlet pipe (32) is connected to the output end of another cooling chamber (30).

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