Auxiliary demolding device for injection mold

By combining air cooling and water mist cooling in the injection mold auxiliary device, the problem of low efficiency of traditional cooling methods is solved, and rapid cooling and efficient demolding of the injection mold are achieved.

CN223864258UActive Publication Date: 2026-02-03南京汉晟模具科技有限公司
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Patent Information

Application Number
CN202520429570.6
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-03-12
Publication Date
2026-02-03
Estimated Expiration
2035-03-12

AI Technical Summary

Technical Problem

Traditional injection mold cooling methods are inefficient, resulting in uneven cooling and slow cooling speed, which affects demolding efficiency and product quality.

Method used

It adopts a combination of air cooling and water mist cooling. The fan blades blow air to dissipate heat and the atomizing nozzles spray coolant. The combination of air cooling and water mist evaporation quickly removes heat, achieving rapid cooling.

Benefits of technology

It enables rapid cooling of injection molds, improves demolding efficiency and product quality, and solves the problem of uneven cooling.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of demolding devices, in particular to an auxiliary demolding device for an injection mold, which comprises a rack, a support seat arranged on the rack and used for placing the injection mold, a water cooling bin arranged on the support seat, a main shaft rotationally arranged on the rack, and fan blades arranged on the main shaft and used for blowing and radiating the top of the injection mold. A plurality of atomizing nozzles are arranged on the inner walls of the two sides of the water cooling bin correspondingly and used for atomizing and spraying cooling liquid to the two sides of the injection mold; a water storage barrel is arranged on the supporting seat, a push rod is movably inserted into an inner cavity of the water storage barrel, a piston clamped in the water storage barrel in a sliding manner is arranged on the push rod, a water outlet pipe and a water inlet pipe are arranged on the water storage barrel, the water outlet pipe is communicated with the atomizing nozzle, and the water inlet pipe is communicated with an external water source. Air cooling is matched with water mist evaporation heat dissipation, the bottleneck of low heat dissipation efficiency of a single medium is broken through, and an injection mold can be assisted in rapid demolding.
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Description

TECHNICAL FIELD

[0001] The utility model relates to a demolding device technical field, concretely is a kind of injection mold auxiliary demolding device. BACKGROUND

[0002] As one of the core processes of modern manufacturing, injection molding technology is widely used in the fields of automobiles, household appliances, medical devices, etc., and its core link-cooling and demolding efficiency directly determines the production cycle, energy consumption and product quality. Traditional injection mold cooling technology relies on natural cooling or single medium (such as air cooling, water cooling) passive heat dissipation, and the demolding process is often difficult due to uneven cooling or slow cooling speed, resulting in product deformation, demolding difficulty and other problems. With the increasing demand for efficiency and precision in industry, the existing technology exposes a series of bottlenecks that need to be solved.

[0003] Traditional cooling methods rely on natural heat dissipation or fan forced convection, which is low in efficiency and has defects. Natural cooling prolongs the production cycle, and some improved schemes use built-in cooling pipelines, but the cooling pipeline structure is complex and the maintenance cost is high, and the pipeline cannot fully contact the injection mold, which cannot quickly absorb heat and has low cooling efficiency. Therefore, we provide an injection mold auxiliary demolding device to solve the above-mentioned problems. SUMMARY

[0004] The utility model aims at providing an injection mold auxiliary demolding device to solve the problems raised in the background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical scheme:

[0006] An injection mold auxiliary demolding device includes a rack, a support seat for placing and supporting the injection mold is provided on the rack, a water cooling bin is provided on the support seat, a main shaft is rotatably provided on the rack, a fan blade is provided on the main shaft, the fan blade is used for blowing and cooling the top of the injection mold, a plurality of atomizing nozzles are provided on the inner walls of both sides of the water cooling bin, and the atomizing nozzles are used for atomizing and spraying cooling liquid on both sides of the injection mold.

[0007] A water storage cylinder is provided on the support seat, a push rod is movably inserted into the inner cavity of the water storage cylinder, a piston is slidably connected to the inner part of the water storage cylinder, and a water outlet pipe and a water inlet pipe are provided on the water storage cylinder, wherein the water outlet pipe is in communication with the atomizing nozzles, and the water inlet pipe is in communication with an external water source.

[0008] The push rod and the main shaft are connected through a linkage structure, and the main shaft rotates while driving the push rod to reciprocate in the inner cavity of the water storage cylinder.

[0009] An injection mold auxiliary demolding device as described above: a plurality of through grooves are provided on the support seat.

[0010] The injection mold auxiliary demolding device as claimed in any one of the above claims, wherein the frame is provided with a double-shaft motor, and the main shaft is installed at the output end of the double-shaft motor and is driven to rotate by the double-shaft motor.

[0011] The injection mold auxiliary demolding device as claimed in any one of the above claims, wherein the water outlet pipe and the water inlet pipe are respectively provided with a one-way valve, liquid can only pass through the water inlet pipe into the water storage cylinder in one direction, and liquid can only pass through the water storage cylinder into the water outlet pipe in one direction.

[0012] The injection mold auxiliary demolding device as claimed in any one of the above claims, wherein the linkage structure comprises a second rotating shaft, a third rotating shaft and a first rotating shaft which are rotatably arranged on the frame, the second rotating shaft and the main shaft are in transmission through a worm and gear mechanism, the main shaft rotates to drive the second rotating shaft to rotate, the second rotating shaft and the third rotating shaft are in transmission through a first pulley mechanism, the second rotating shaft rotates to drive the third rotating shaft to rotate, the third rotating shaft and the first rotating shaft are in transmission through a second pulley mechanism, the third rotating shaft rotates to drive the first rotating shaft to rotate, and the first rotating shaft and the push rod are in transmission through a crank and connecting rod mechanism, the first rotating shaft rotates to drive the push rod to reciprocate.

[0013] The injection mold auxiliary demolding device as claimed in any one of the above claims, wherein the worm and gear mechanism comprises a worm fixed on the main shaft and a worm wheel fixed on the second rotating shaft, and the worm and the worm wheel are in engagement.

[0014] The first pulley mechanism comprises a first pulley fixed on the second rotating shaft and a second pulley fixed on the third rotating shaft, and the first pulley and the second pulley are in transmission through a first belt.

[0015] The second pulley mechanism comprises a third pulley fixed on the third rotating shaft and a fourth pulley fixed on the first rotating shaft, and the third pulley and the fourth pulley are in transmission through a second belt.

[0016] The injection mold auxiliary demolding device as claimed in any one of the above claims, wherein the crank and connecting rod mechanism comprises a rotating wheel fixed on the first rotating shaft, a swing arm is arranged between the rotating wheel and the third rotating shaft, and the swing arm is hingedly connected to the push rod and the rotating wheel at two ends thereof.

[0017] Compared with the prior art, the beneficial effects of the utility model are: when using, the injection mold is placed and installed on the support seat and located at the inner side of the water cooling bin, the main shaft is rotationally arranged on the rack, the linkage structure is matched between the push rod and the main shaft, the main shaft rotates and drives the fan blade to rotate, the fan blade rotation can be used for blowing and heat dissipation on the top of the injection mold, the main shaft rotates and drives the push rod to reciprocate in the inner cavity of the water storage cylinder, so that the water outlet pipe and the water inlet pipe can continuously transport the external water source into the water outlet pipe and spray the surfaces on both sides of the injection mold through the atomizing nozzle, the atomizing spray can make the water fully contact with the surface of the injection mold, and the air cooling can accelerate the water mist evaporation, so that the heat absorption on both sides of the injection mold through the water mist evaporation can quickly take away the heat on the surface of the injection mold, and the injection mold is quickly cooled;

[0018] Therefore, the utility model combines the air cooling and water cooling to dissipate heat of the injection mold, breaks through the bottleneck of slow heat dissipation efficiency of single medium, and can assist the injection mold in rapid demolding. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 It is a first view structure schematic view of an injection mold auxiliary demolding device.

[0020] Figure 2 It is a second view structure schematic view of an injection mold auxiliary demolding device.

[0021] Figure 3 It is a partial structure schematic view of an injection mold auxiliary demolding device. Figure 1 after decomposition.

[0022] Figure 4 It is a partial structure schematic view of an injection mold auxiliary demolding device. Figure 3 after decomposition.

[0023] Figure 5 It is a partial structure schematic view of an injection mold auxiliary demolding device. Figure 3 after decomposition.

[0024] Figure 6 It is a partial structure schematic view of an injection mold auxiliary demolding device. Figure 5 after decomposition.

[0025] Figure 7 It is a partial structure schematic view of an injection mold auxiliary demolding device. Figure 5 after decomposition.

[0026] In the figure: 1, rack; 2, support seat; 3, water cooling bin; 4, main shaft; 5, double-shaft motor; 6, fan blade; 7, atomizing nozzle; 8, water storage cylinder; 9, push rod; 10, piston; 11, water outlet pipe; 12, water inlet pipe; 13, first rotating shaft; 14, rotating wheel; 15, swing arm; 16, second rotating shaft; 17, worm; 18, worm wheel; 19, third rotating shaft; 20, first pulley; 21, second pulley; 22, first belt; 23, third pulley; 24, fourth pulley; 25, second belt; 26, through slot. DETAILED DESCRIPTION

[0027] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments.

[0028] Please refer to Figures 1-7 As an embodiment of the utility model, an injection mold auxiliary demolding device comprises a rack 1, the rack 1 is provided with a support seat 2 for placing the injection mold, the support seat 2 is provided with a water cooling bin 3, the rack 1 is rotatably provided with a main shaft 4, the main shaft 4 is provided with a fan blade 6, the fan blade 6 is used for blowing and cooling the top of the injection mold, the inner walls of the two sides of the water cooling bin 3 are respectively provided with a plurality of atomizing nozzles 7, the atomizing nozzles 7 are used for atomizing and spraying coolant on the two sides of the injection mold;

[0029] The support seat 2 is provided with a water storage cylinder 8, the inner cavity of the water storage cylinder 8 is movably connected with a push rod 9, the push rod 9 is provided with a piston 10 which is slidably connected in the water storage cylinder 8, the water storage cylinder 8 is provided with a water outlet pipe 11 and a water inlet pipe 12, wherein the water outlet pipe 11 is communicated with the atomizing nozzles 7, and the water inlet pipe 12 is communicated with an external water source;

[0030] The push rod 9 and the main shaft 4 are matched through a linkage structure, and the main shaft 4 rotates at the same time to drive the push rod 9 to reciprocate in the inner cavity of the water storage cylinder 8.

[0031] In this embodiment, when in use, the injection mold is placed and installed on the support seat 2 and located inside the water cooling bin 3, the main shaft 4 is rotatably arranged on the rack 1, the push rod 9 and the main shaft 4 are matched through a linkage structure, the main shaft 4 rotates at the same time to drive the fan blade 6 to rotate, the fan blade 6 rotates to blow and cool the top of the injection mold, the main shaft 4 rotates at the same time to also drive the push rod 9 to reciprocate in the inner cavity of the water storage cylinder 8, so that the external water source can be continuously delivered into the water outlet pipe 11 through the cooperation of the water outlet pipe 11, the water inlet pipe 12 and the atomizing nozzles 7 to spray the surface of the two sides of the injection mold, the atomizing and spraying can make the water fully contact with the surface of the injection mold, and the air cooling can accelerate the evaporation of the water mist, so that the heat absorption of the two sides of the injection mold through the evaporation of the water mist can quickly take away the heat of the surface of the injection mold to quickly cool the injection mold.

[0032] As a further scheme of the utility model, a plurality of through grooves 26 are formed through the support base 2.

[0033] In this embodiment, after the injection mold is placed and installed on the support base 2, the water liquid atomized and sprayed on the surface of the injection mold can fall on the surface of the support base 2 and drip downward through the through grooves 26 formed on the surface of the support base 2.

[0034] As a further scheme of the utility model, a double-shaft motor 5 is arranged on the rack 1, the main shaft 4 is installed on the output end of the double-shaft motor 5 and is driven to rotate by the double-shaft motor 5.

[0035] In this embodiment, the double-shaft motor 5 is electrically connected with an external power source through wires, the double-shaft motor 5 is started, and the double-shaft motor 5 can drive the main shaft 4 to rotate, thereby driving the fan blade 6 to rotate and air cooling the injection mold on the support base 2.

[0036] As a further scheme of the utility model, a one-way valve is installed on the water outlet pipe 11 and the water inlet pipe 12 respectively, liquid can only pass through the water inlet pipe 12 into the inside of the water storage cylinder 8 in one direction, and liquid can only pass through the water storage cylinder 8 into the inside of the water outlet pipe 11 in one direction.

[0037] In this embodiment, when the piston 10 reciprocates in the water storage cylinder 8, the external water source can be drawn into the inside of the water storage cylinder 8 through the water inlet pipe 12 and can be transported from the inside of the water storage cylinder 8 to the water outlet pipe 11, and then sprayed to the atomizing nozzle 7 through the water outlet pipe 11.

[0038] As a further scheme of the utility model, the linkage structure comprises a second rotating shaft 16, a third rotating shaft 19 and a first rotating shaft 13 which are rotatably arranged on the rack 1, the second rotating shaft 16 is driven by a worm gear mechanism between the main shaft 4, the main shaft 4 is driven to rotate at the same time as the second rotating shaft 16, the second rotating shaft 16 is driven by a first pulley mechanism between the third rotating shaft 19, the second rotating shaft 16 is driven to rotate at the same time as the third rotating shaft 19, the third rotating shaft 19 is driven by a second pulley mechanism with the first rotating shaft 13, the third rotating shaft 19 is driven to rotate at the same time as the first rotating shaft 13, the first rotating shaft 13 is driven by a crank connecting rod mechanism between the push rod 9, and the first rotating shaft 13 is driven to reciprocate at the same time as the push rod 9.

[0039] In this embodiment, the main shaft 4 rotates while driving the second rotating shaft 16 to rotate, the second rotating shaft 16 and the third rotating shaft 19 are driven through the first belt wheel mechanism, the second rotating shaft 16 rotates while driving the third rotating shaft 19 to rotate, the third rotating shaft 19 and the first rotating shaft 13 are driven through the second belt wheel mechanism, the third rotating shaft 19 rotates while driving the first rotating shaft 13 to rotate, the first rotating shaft 13 and the push rod 9 are driven through the crank connecting rod mechanism, the first rotating shaft 13 rotates while driving the push rod 9 to reciprocate, thereby driving the piston 10 at one end of the push rod 9 to reciprocate in the water storage cylinder 8.

[0040] As a further scheme of the utility model, the worm gear mechanism comprises a worm 17 fixed on the main shaft 4 and a worm wheel 18 fixed on the second rotating shaft 16, the worm 17 and the worm wheel 18 are engaged;

[0041] The first belt wheel mechanism comprises a first belt wheel 20 fixed on the second rotating shaft 16 and a second belt wheel 21 fixed on the third rotating shaft 19, the first belt wheel 20 and the second belt wheel 21 are driven through the first belt 22;

[0042] The second belt wheel mechanism comprises a third belt wheel 23 fixed on the third rotating shaft 19 and a fourth belt wheel 24 fixed on the first rotating shaft 13, the third belt wheel 23 and the fourth belt wheel 24 are driven through the second belt 25.

[0043] In this embodiment, the main shaft 4 rotates while driving the worm 17 to rotate, the worm 17 and the worm wheel 18 are engaged to drive the worm wheel 18 to rotate, thereby driving the second rotating shaft 16 to rotate;

[0044] The second rotating shaft 16 rotates while driving the first belt wheel 20 to rotate, the first belt wheel 20 and the second belt wheel 21 are driven through the first belt 22 to drive the second belt wheel 21 to rotate, thereby driving the third rotating shaft 19 to rotate;

[0045] The third rotating shaft 19 rotates while driving the third belt wheel 23 to rotate, the third belt wheel 23 and the fourth belt wheel 24 are driven through the second belt 25 to drive the fourth belt wheel 24 to rotate, thereby driving the first rotating shaft 13 to rotate.

[0046] The fourth belt wheel 24 rotates while driving the first rotating shaft 13 to rotate.

[0047] As a further scheme of the utility model, the crank connecting rod mechanism comprises a rotating wheel 14 fixed on the first rotating shaft 13, a swing arm 15 is arranged between the rotating wheel 14 and the third rotating shaft 19, and the swing arm 15 is hinged at both ends to the push rod 9 and the rotating wheel 14.

[0048] In this embodiment, the first rotating shaft 13 rotates to drive the rotating wheel 14 to rotate, and the rotating wheel 14 rotates to drive the swing arm 15 to swing back and forth, thereby driving the push rod 9 to move back and forth, and further driving the piston 10 at one end of the push rod 9 to move back and forth in the water storage cylinder 8.

[0049] In use, the injection mold is placed and installed on the support seat 2 and located inside the water cooling bin 3, after the injection is completed, the upper mold is taken out, the main shaft 4 is rotatably arranged on the frame 1, the push rod 9 and the main shaft 4 are matched through the linkage structure, the double-shaft motor 5 is started to drive the main shaft 4 to rotate, the main shaft 4 rotates to drive the fan blade 6 to rotate, the fan blade 6 rotates to blow and cool the lower injection mold and the top of the mold, the main shaft 4 rotates to drive the push rod 9 to move back and forth in the inner cavity of the water storage cylinder 8, thereby cooperating with the water outlet pipe 11 and the water inlet pipe 12 to continuously transport the external water source into the water outlet pipe 11 and spray the surfaces on both sides of the lower injection mold through the atomizing nozzle 7, the atomizing spray can make the water fully contact with the surfaces on both sides of the lower injection mold, and cooperate with the air cooling to accelerate the evaporation of the water mist, thereby absorbing heat on both sides of the injection mold through the evaporation of the water mist to quickly take away the heat on the surface of the injection mold, and quickly cool the injection mold.

[0050] The above embodiments are exemplary but not restrictive, and therefore, the technical solutions of the present application can be implemented in other specific forms without departing from the spirit or basic characteristics of the present application, and all the technical solutions are included in the present application.

Claims

1. An injection mold auxiliary demolding device, comprising a frame (1), characterized in that, The frame (1) is provided with a support base (2) for placing the injection mold. The support base (2) is provided with a water cooling chamber (3). The frame (1) is rotatably provided with a main shaft (4). The main shaft (4) is provided with fan blades (6). The fan blades (6) are used to blow air to dissipate heat from the top of the injection mold. The inner walls on both sides of the water cooling chamber (3) are provided with multiple atomizing nozzles (7). The atomizing nozzles (7) are used to atomize and spray coolant on both sides of the injection mold. A water storage cylinder (8) is provided on the support base (2). A push rod (9) is movably inserted into the inner cavity of the water storage cylinder (8). A piston (10) is provided on the push rod (9) and is slidably engaged inside the water storage cylinder (8). A water outlet pipe (11) and a water inlet pipe (12) are provided on the water storage cylinder (8). The water outlet pipe (11) is connected to the atomizing nozzle (7), and the water inlet pipe (12) is connected to an external water source. The push rod (9) and the main shaft (4) are connected by a linkage structure. When the main shaft (4) rotates, it will drive the push rod (9) to move back and forth in the inner cavity of the water storage cylinder (8).

2. The injection mold auxiliary demolding device according to claim 1, characterized in that, The support base (2) has multiple through slots (26) through it.

3. The injection mold auxiliary demolding device according to claim 1, characterized in that, A dual-axis motor (5) is provided on the frame (1), and the main shaft (4) is installed at the output end of the dual-axis motor (5) and driven to rotate by the dual-axis motor (5).

4. The injection mold auxiliary demolding device according to claim 1, characterized in that, One-way valves are installed on the outlet pipe (11) and the inlet pipe (12), respectively. Liquid can only enter the water storage tank (8) through the inlet pipe (12) in one direction, and liquid can only enter the outlet pipe (11) through the water storage tank (8) in one direction.

5. The injection mold auxiliary demolding device according to claim 1, characterized in that, The linkage structure includes a second rotating shaft (16), a third rotating shaft (19), and a first rotating shaft (13) rotatably mounted on the frame (1). The second rotating shaft (16) is driven to the main shaft (4) by a worm gear mechanism. When the main shaft (4) rotates, it drives the second rotating shaft (16) to rotate. The second rotating shaft (16) is driven to the third rotating shaft (19) by a first pulley mechanism. When the second rotating shaft (16) rotates, it drives the third rotating shaft (19) to rotate. The third rotating shaft (19) is driven to the first rotating shaft (13) by a second pulley mechanism. When the third rotating shaft (19) rotates, it drives the first rotating shaft (13) to rotate. The first rotating shaft (13) is driven to the push rod (9) by a crank-connecting rod mechanism. When the first rotating shaft (13) rotates, it drives the push rod (9) to reciprocate.

6. The injection mold auxiliary demolding device according to claim 5, characterized in that, The worm gear mechanism includes a worm (17) fixed on the main shaft (4) and a worm wheel (18) fixed on the second rotating shaft (16), wherein the worm (17) and the worm wheel (18) mesh. The first pulley mechanism includes a first pulley (20) fixed on a second rotating shaft (16) and a second pulley (21) fixed on a third rotating shaft (19). The first pulley (20) and the second pulley (21) are driven by a first belt (22). The second pulley mechanism includes a third pulley (23) fixed on a third rotating shaft (19) and a fourth pulley (24) fixed on a first rotating shaft (13). The third pulley (23) and the fourth pulley (24) are driven by a second belt (25).

7. The injection mold auxiliary demolding device according to claim 5, characterized in that, The crank-connecting rod mechanism includes a wheel (14) fixed on a first rotating shaft (13), and a swing arm (15) is provided between the wheel (14) and the third rotating shaft (19). The two ends of the swing arm (15) are respectively hinged to the push rod (9) and the wheel (14).