Traceless demolding device for injection molding

Abstract

The utility model discloses a traceless demolding device for injection molding. The traceless demolding device comprises a mounting frame, a transmission motor, a supporting plate, a double-tooth screw rod, a transmission block, a transmission bracket, a mold pushing block, a shaping mold, a shaping device and a sealing cover, the shaping device is arranged, a power push rod is started to push a fixing plate to slide downwards along a guide sliding groove, so that the fixing plate can drive an air guide tank and a rotator to move downwards, and an air pump is started to suck air flow into the air guide tank; furthermore, the air guide cover can better guide hot air and cold air into the shaping device, so that the cooling and shaping work of a product is quickly completed through the shaping device, and the problem that in original equipment, a finished product placed in a mold needs to be cooled and shaped through automatically circulating airflow is solved; and therefore, the problems of overlong cooling time and low cooling efficiency exist.

Description

Technical Field

[0001] The utility model relates to the field of injection molding demoulding, in particular to a traceless demoulding device for injection molding. Background Art

[0002] An injection mold is a tool for producing plastic products. It is also a tool that gives plastic products a complete structure and precise dimensions. Injection molding is a processing method used in mass production of certain parts with complex shapes. Specifically, it refers to the process of injecting heated and melted plastic into the mold cavity under high pressure by an injection molding machine, and obtaining a molded product after cooling and solidification.

[0003] The Chinese patent document with the announcement number CN219705958U discloses a demoulding device for auxiliary injection molding machine injection molding products, which is provided with a support block, an elastic component and a mold. The support block is attached to the mold to be demoulded, and the elastic component is used for elastic downward pressure buffering. The mold after molding is supported by opening the box cover to achieve the demoulding effect;

[0004] However, during the cooling and shaping process, the original equipment lacked a cooling device, which resulted in the need for automatic airflow to cool and shape the finished product placed inside the mold, resulting in problems such as long cooling time and slow cooling efficiency. Utility Model Content

[0005] Therefore, in order to solve the above-mentioned shortcomings, the utility model provides a traceless demoulding device for injection molding.

[0006] To achieve the above object, the utility model adopts the following technical solutions: a seamless demoulding device for injection molding, including an installation frame, a driving motor, a support plate, a double-threaded screw rod, a driving block, a driving bracket, a pushing module, a shaping die, a shaping device, and a sealing cover. A support plate is arranged inside the installation frame. The driving motor is installed at the right end of the support plate. The driving motor is in transmission connection with the right end of the double-threaded screw rod by means of a coupling. The double-threaded screw rod is in threaded cooperation with the inside of the driving block. The driving block is in transmission connection with the bottom of the driving bracket. A pushing module is installed at the top of the driving bracket. The pushing module is movably connected to the bottom of the shaping die. The shaping die is fixed to the top of the support plate. The shaping device is fixed to the rear end of the installation frame. The sealing cover is connected to the top of the installation frame. The shaping device includes an installation plate, a power push rod, a guiding chute, an air guiding tank, an air extraction pump, a fixing plate, a rotator, a transmission shaft sleeve, an air guiding cover, and a heater A. The installation plate is fixed to the rear end of the installation frame. The power push rod is fixed to the front end of the installation plate. The power push rod is in transmission connection with the top of the fixing plate. The guiding chute is arranged at the front end of the installation plate. The air guiding tank is fixed to the top of the fixing plate. The air extraction pump is installed at the left end of the air guiding tank. The fixing plate is slidably connected to the front end of the installation plate. The rotator is fixed to the bottom of the air guiding tank. The rotator is in frictional transmission with the outer side of the transmission shaft sleeve. An air guiding cover is installed at the bottom of the transmission shaft sleeve. The heater A is fixed to the left end of the air guiding tank.

[0007] As a further scheme of the utility model, the rotator includes a housing, a servo motor, a transmission shaft, and a transmission wheel. The servo motor is installed inside the housing. The servo motor is in transmission connection with the top of the transmission shaft. The transmission shaft is rotatably connected to the bottom of the housing. The transmission wheel is installed at the bottom of the transmission shaft.

[0008] As a further scheme of the utility model, the power push rod and the fixing plate are vertically arranged at the front end of the installation plate, which is beneficial for the power push rod to push the fixing plate to slide along the installation plate.

[0009] As a further scheme of the utility model, there are two groups of guiding chutes, and the two groups of guiding chutes are arranged horizontally at the front end of the installation plate.

[0010] As a further scheme of the utility model, convex blocks are arranged at the rear ends of the fixing plates, and the convex blocks are in conformity with the inside of the guiding chutes.

[0011] As a further scheme of the utility model, the rotator and the transmission shaft sleeve are arranged in parallel at the bottom of the air guiding tank to ensure that the rotator can drive the transmission shaft sleeve to rotate.

[0012] As a further scheme of the utility model, the sizes of the transmission wheel and the transmission wheel sleeve arranged on the outer side of the transmission shaft sleeve are in frictional transmission.

[0013] As a further solution of the present utility model, the servo motor is vertically arranged inside the housing with the transmission shaft and the transmission wheel.

[0014] As a further solution of the present utility model, an injection hole is provided at the top of the sealing cover.

[0015] As a further solution of the present utility model, the heater can adopt a heater of TM model.

[0016] Compared with the prior art, the present utility model provides a seamless demoulding device for injection molding, having the following beneficial effects:

[0017] 1. In the present utility model, by arranging a shaping device, starting the power push rod to push the fixed plate to slide downward along the guiding chute, the fixed plate can drive the air guide tank and the rotator to move downward. Then, starting the air extraction pump to draw air into the air guide tank, and starting the rotator to drive the transmission shaft sleeve to rotate, so that the transmission shaft sleeve can drive the air guide cover to rotate, and the air guide cover can rotate accordingly, thereby changing the guiding direction of the air guide cover. Further, the air guide cover can better guide the hot air and cold air into the shaping device. Next, the heater can be started to heat the gas inside the air guide tank, and under the guidance of the transmission shaft sleeve and the air guide cover, the hot air and cold air are sequentially blown into the shaping device, enabling the product inside the mold to quickly complete the process of thermal expansion and contraction, and further achieving the work of quickly cooling and shaping the product through the shaping device. Thus, it solves the problem that in the original equipment, the finished product placed inside the mold needs to be cooled and shaped by the automatically flowing air, resulting in a long cooling time and slow cooling efficiency.

[0018] 2. In the present utility model, by arranging a rotator, starting the servo motor to drive the transmission shaft to rotate, the transmission shaft can drive the transmission wheel to rotate. The transmission wheel on the outside of the transmission shaft sleeve is friction-driven, so that the transmission shaft sleeve can drive the air guide cover to rotate. Further, by starting the rotator to drive the transmission shaft sleeve to rotate, the transmission shaft sleeve can drive the air guide cover to rotate, and the air guide cover can rotate accordingly, thereby changing the guiding direction of the air guide cover. Further, the air guide cover can better guide the hot air and cold air into the shaping mold. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 is the three-dimensional structural schematic diagram of the present utility model;

[0020] Figure 2 is the planar structural schematic diagram of the present utility model;

[0021] Figure 3 is the three-dimensional structural schematic diagram of the shaping device of the present utility model;

[0022] Figure 4 It is a schematic side structure diagram of the shaping device of the present utility model;

[0023] Figure 5 It is a schematic structure diagram of the rotator of the present utility model.

[0024] Wherein: mounting frame - 1, driving motor - 2, support plate - 3, double - thread screw rod - 4, driving block - 5, driving bracket - 6, pushing module - 7, shaping die - 8, shaping device - 9, sealing cover - 10, mounting plate - 91, power push rod - 92, guiding sliding groove - 93, air guiding tank - 94, air extraction pump - 95, fixing plate - 96, rotator - 97, transmission shaft sleeve - 98, air guiding cover - 99, heater - 9A, housing - 971, servo motor - 972, transmission shaft - 973, transmission wheel - 974. Specific embodiments

[0025] In order to further explain the technical solution of the present utility model, it will be elaborated in detail through specific embodiments below.

[0026] Please refer to FIGS. 1 and Figure 2 , in the embodiment of the present utility model:

[0027] An injection - molding seamless demolding device includes a mounting frame 1, a driving motor 2, a support plate 3, a double - thread screw rod 4, a driving block 5, a driving bracket 6, a pushing module 7, a shaping die 8, a shaping device 9, and a sealing cover 10. A support plate 3 is arranged inside the mounting frame 1. The driving motor 2 is installed at the right end of the support plate 3. The driving motor 2 is in transmission connection with the right end of the double - thread screw rod 4 by means of a coupling. The double - thread screw rod 4 is in internal threaded fit with the driving block 5. The driving block 5 is in transmission connection with the bottom of the driving bracket 6. The top of the driving bracket 6 is provided with a pushing module 7. The pushing module 7 is movably connected to the bottom of the shaping die 8. The shaping device 9 is fixed to the top of the support plate 3 and is also fixed to the rear end of the mounting frame 1. The sealing cover 10 is connected to the top of the mounting frame 1, and an injection hole is provided at the top of the sealing cover 10.

[0028] Please refer to FIGS. 3 and Figure 4 , in the embodiment of the present utility model:

[0029] The shaping device 9 includes a mounting plate 91, a power push rod 92, a guiding chute 93, an air guiding tank 94, an air extraction pump 95, a fixing plate 96, a rotator 97, a transmission shaft sleeve 98, an air guiding cover 99, and a heater 9A. The mounting plate 91 is fixed to the rear end of the mounting frame 1. The power push rod 92 is fixed to the front end of the mounting plate 91. The power push rod 92 is in transmission connection with the top of the fixing plate 96. The guiding chute 93 is arranged at the front end of the mounting plate 91. The air guiding tank 94 is fixed to the top of the fixing plate 96. The air extraction pump 95 is installed at the left end of the air guiding tank 94. The fixing plate 96 is slidably connected to the front end of the mounting plate 91. The rotator 97 is fixed to the bottom of the air guiding tank 94. The rotator 97 is in frictional transmission with the outer side of the transmission shaft sleeve 98. The air guiding cover 99 is installed at the bottom of the transmission shaft sleeve 98. The heater 9A is fixed to the left end of the air guiding tank 94. The heater 9A can adopt a heater of model TM.

[0030] Please refer to Fig. 5. In the embodiment of the present invention:

[0031] The rotator 97 includes a housing 971, a servo motor 972, a transmission shaft 973, and a transmission wheel 974. The servo motor 972 is installed inside the housing 971. The servo motor 972 is in transmission connection with the top of the transmission shaft 973. The transmission shaft 973 is rotatably connected to the bottom of the housing 971. The transmission wheel 974 is installed at the bottom of the transmission shaft 973.

[0032] Reference Figures 1-5 When in use, the mounting frame 1 will be horizontally placed beside the injection molding machine. When starting the injection molding equipment to introduce the plastic liquid into the inside of the shaping mold 8, the shaping mold 8 can play a role in shaping the plastic liquid. During this process, the sealing cover 10 can ensure that the shaping mold 8 is in a sealed state, so that the plastic liquid can complete the shaping of the plastic liquid under the action of the shaping mold 8.

[0033] Furthermore, by starting the power push rod 92 to push the fixing plate 96 to slide downward along the guiding chute 93, the fixing plate 96 can drive the air guiding tank 94 and the rotator 97 to move downward. When starting the air extraction pump 95, the air flow is pumped into the inside of the air guiding tank 94.

[0034] At the same time, the servo motor 972 can be started to drive the transmission shaft 973 to rotate, so that the transmission shaft 973 can drive the transmission wheel 974 to rotate. The transmission wheel 974 is in frictional transmission with the transmission wheel arranged on the outer side of the transmission shaft sleeve 98, so that the transmission shaft sleeve 98 can drive the air guiding cover 99 to rotate. Furthermore, by starting the rotator 97 to drive the transmission shaft sleeve 98 to rotate, the transmission shaft sleeve 98 can drive the air guiding cover 99 to rotate. The air guiding cover 99 can rotate accordingly, thereby changing the guiding direction of the air guiding cover 99, so that the air guiding cover 99 can better guide the hot air and cold air into the inside of the shaping device 9.

[0035] Next, the heater 9A can be activated to heat the gas inside the air guide tank 94. Under the guidance of the transmission shaft sleeve 98 and the air guide cover 99, the hot air and cold air are blown into the shaping device 9 in sequence, enabling the product inside the mold to quickly complete the process of thermal expansion and contraction, and thus achieving the rapid cooling and shaping of the product through the shaping device 9. This solves the problem in the original equipment that the finished product placed inside the mold needs to be cooled and shaped by the automatically flowing air current, resulting in a long cooling time and slow cooling efficiency.

[0036] The control method of the present utility model is controlled by manually starting and closing the switch. The wiring diagram of the power element and the power supply are common knowledge in the art. And the present utility model is mainly used to protect the mechanical device, so the control method and wiring layout of the present utility model will not be explained in detail.

[0037] The control method of the present utility model is automatically controlled by a controller. The control circuit of the controller can be realized by simple programming by those skilled in the art. The power supply is also common knowledge in the art. And the present utility model is mainly used to protect the mechanical device, so the control method and circuit connection of the present utility model will not be explained in detail.

[0038] The above are only the preferred examples of the present utility model and are not used to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions recorded in the foregoing embodiments or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A seamless demolding device for injection molding, comprising a mounting frame (1), a driving motor (2), a support plate (3), a double-threaded screw rod (4), a driving block (5), a driving bracket (6), a pushing block (7), a shaping mold (8), a shaping device (9), and a sealing cover (10). A support plate (3) is arranged inside the mounting frame (1). The driving motor (2) is installed at the right end of the support plate (3). The driving motor (2) is drivingly connected to the right end of the double-threaded screw rod (4) by a coupling. The double-threaded screw rod (4) is in threaded cooperation with the inside of the driving block (5). The driving block (5) is drivingly connected to the bottom of the driving bracket (6). The top of the driving bracket (6) is installed with a pushing block (7). The pushing block (7) is movably connected to the bottom of the shaping mold (8). The shaping mold (8) is fixed to the top of the support plate (3). The shaping device (9) is fixed to the rear end of the mounting frame (1). The sealing cover (10) is connected to the top of the mounting frame (1). It is characterized in that: The shaping device (9) includes a mounting plate (91), a power push rod (92), a guiding chute (93), a gas guiding tank (94), an air extraction pump (95), a fixing plate (96), a rotator (97), a transmission shaft sleeve (98), a gas guiding hood (99), and a heater (9A). The mounting plate (91) is fixed to the rear end of the mounting frame (1). The power push rod (92) is fixed to the front end of the mounting plate (91). The power push rod (92) is drivingly connected to the top of the fixing plate (96). The guiding chute (93) is arranged at the front end of the mounting plate (91). The gas guiding tank (94) is fixed to the top of the fixing plate (96). The air extraction pump (95) is installed at the left end of the gas guiding tank (94). The fixing plate (96) is slidably connected to the front end of the mounting plate (91). The rotator (97) is fixed to the bottom of the gas guiding tank (94). The rotator (97) is frictionally driven with the outer side of the transmission shaft sleeve (98). The bottom of the transmission shaft sleeve (98) is installed with a gas guiding hood (99). The heater (9A) is fixed to the left end of the gas guiding tank (94).

2. The non-trace demolding device for injection molding according to claim 1, wherein: The rotator (97) includes a housing (971), a servo motor (972), a transmission shaft (973), and a transmission wheel (974). The servo motor (972) is installed inside the housing (971). The servo motor (972) is drivingly connected to the top of the transmission shaft (973). The transmission shaft (973) is rotatably connected to the bottom of the housing (971). The bottom of the transmission shaft (973) is installed with a transmission wheel (974).

3. The non-trace demolding device for injection molding according to claim 1, characterized in that: The power push rod (92) and the fixing plate (96) are vertically arranged at the front end of the mounting plate (91).

4. The non-trace demoulding device for injection molding according to claim 1, wherein: There are two groups of the guiding chutes (93), and the two groups of guiding chutes (93) are arranged horizontally at the same level at the front end of the mounting plate (91).

5. The non-trace demoulding device for injection molding according to claim 1, wherein: Convex blocks are provided at the rear end of the fixing plate (96), and the convex blocks are fitted with the inside of the guiding chutes (93).

6. The non-trace demolding device for injection molding according to claim 1, wherein: The rotator (97) and the transmission shaft sleeve (98) are parallelly arranged at the bottom of the gas guiding tank (94).

7. The non-trace demoulding device for injection molding according to claim 2, wherein: The driving wheel (974) and the driving wheel sleeve arranged on the outer side of the transmission shaft sleeve (98) are in frictional transmission with each other in terms of size.

8. The non-trace demolding device for injection molding according to claim 2, characterized in that: The servo motor (972), the transmission shaft (973), and the driving wheel (974) are vertically arranged inside the housing (971).

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