Cooling structure for blanking area of charging barrel of injection molding machine

Abstract

The utility model relates to the technical field of injection molding, and discloses an injection molding machine charging barrel blanking area cooling structure which comprises a shell, ventilation nets are fixedly connected to the left side and the right side of the shell, a controller is fixedly connected to the front face of the shell, and a mold box is fixedly connected to the top of the shell. The injection mechanism comprises a servo motor fixedly connected to the top of the shell, and the output end of the servo motor is fixedly connected with a screw rod. The two-way motor drives the fan blades to rotate to dissipate heat of the discharging pipe, meanwhile, the two-way motor drives the belt pulley to rotate, the belt pulley drives the water pump to rotate, and the water pump can pump cooling liquid in the liquid storage tank into the cooling tank, so that the temperature of the discharging pipe is reduced; and meanwhile, the liquid return pipe at the bottom can enable the cooling liquid with high temperature in the cooling box to flow into the liquid storage box to be cooled, circulation is formed, and therefore the discharging pipe can be effectively cooled, and the situation that the temperature of the discharging pipe is too high, and models are fused is prevented.

Description

Technical Field

[0001] The utility model relates to the technical field of injection molding, in particular to a cooling structure for a blanking zone of a barrel of an injection molding machine. Background Art

[0002] Injection molding machine is also called injection molding machine or injection machine. It is the main molding equipment that uses plastic molding molds to make plastic products of various shapes from thermoplastics or thermosetting plastics. It is divided into vertical, horizontal and all-electric types. The injection molding machine can heat the plastic and apply high pressure to the molten plastic to make it ejected and fill the mold cavity.

[0003] The application number is CN201820692194.X, which discloses a new type of cooling structure for the blanking area of ​​the injection molding machine barrel. An auxiliary unloading device for an injection molding machine includes a frame, an injection molding machine body is set, a base is fixedly connected to the bottom of the injection molding machine body, a feeding port is set on one side above the injection molding machine body, an injection mold is set on the other side above the injection molding machine body, an injection molded part is set on the inner side of the injection mold, a blowing bracket is fixedly connected to the top of the injection mold, and a blowing nozzle is installed on the blowing bracket. After the injection molding machine completes the stripping and pushing action, high-pressure air is blown to the injection molded part to ensure that the injection molded part is filled and discharged under the air pressure and falls into the blanking area.

[0004] Although this setting can facilitate the material to fall accurately into the blanking area, the temperature of the blanking tube will rise for a long time because the mold is still at a high temperature when falling, which will cause the formed model to deform again or even melt due to excessive temperature. Utility Model Content

[0005] In order to solve the above technical problems, the utility model is realized by the following technical solutions:

[0006] The utility model is a cooling structure for a blanking zone of a barrel of an injection molding machine, comprising a shell, the left side and the right side of the shell are fixedly connected with ventilation nets, the front side of the shell is fixedly connected with a controller, the top of the shell is fixedly connected with a mold box, and is characterized in that it also includes: an injection mechanism, the injection mechanism comprises a servo motor fixedly connected to the top of the shell, the output end of the servo motor is fixedly connected with a spiral rod, the outer wall of the spiral rod is sleeved with an injection pipe, and this arrangement is for conveying materials through the spiral rod.

[0007] Furthermore, a feed hopper is connected to the top of the injection tube, and several heaters are connected to the top of the injection tube. The feed hopper is located on the right side of the heater. A check valve is fixedly connected to the end of the spiral rod away from the servo motor. This arrangement allows the material in the injection tube to be heated and melted by the heater.

[0008] Furthermore, a demolding mechanism is provided inside the mold box, and the injection mechanism includes an injection hole opened on the right side of the mold box, and the end of the injection tube away from the feed hopper is sleeved inside the injection hole. A plurality of sliding rods are sleeved on the right side of the mold box. This arrangement is convenient for conveying the material inside the injection tube into the mold.

[0009] Furthermore, a side of the push plate away from the push rod contacts a side of the fixed plate close to the fixed rod, a socket is provided at the central axis of the push plate, a side of the fixed plate away from the push plate is fixedly connected to a plurality of electric telescopic rods, one end of the electric telescopic rod away from the fixed plate is fixedly connected to the left side of the mold box, and a stop rod is fixedly connected to the central axis on the left side of the mold box. This arrangement is for the convenience of docking the left and right molds during injection molding to prevent offset.

[0010] Furthermore, a plurality of push rods are sleeved on the side of the mounting plate away from the left mold, and the push rods are located in the groove. A plurality of springs are fixedly connected to the side of the mounting plate away from the left mold, and the push rods are sleeved on the inner side of the springs. A push plate is fixedly connected to one end of the push rods away from the mounting plate, so that the Twelve Monkeys can push the push rods to move when the push plate moves, thereby pushing out the mold formed in the mold.

[0011] Furthermore, one end of the spring away from the push rod is fixedly connected to the push plate, the side of the mounting plate away from the left mold is fixedly connected to a fixing rod, one end of the fixing rod away from the mounting plate is fixedly connected to a fixing plate, and the left end of the sliding rod is fixedly connected to the right side of the fixing plate. When configured in this way, the fixing rod is used to ensure that the fixing plate and the mounting plate can move together.

[0012] Furthermore, the side of the push plate away from the push rod contacts the side of the fixed plate close to the fixed rod, and the side of the fixed plate away from the push plate is fixedly connected to a plurality of electric telescopic rods, and one end of the electric telescopic rod away from the fixed plate is fixedly connected to the left side inside the mold box. This arrangement is to ultimately drive the left mold to move through the extension and retraction of the telescopic rod.

[0013] Furthermore, a liquid storage tank is fixedly connected to the inner bottom wall of the shell, a bidirectional motor is fixedly connected to the top of the liquid storage tank, a fan blade is fixedly connected to the left output end of the bidirectional motor, a belt pulley is fixedly connected to the right output end of the motor, two belt pulleys are provided, and belts are sleeved on the outer walls of the two belt pulleys. This arrangement allows the fan blades to rotate driven by the motor to cool the blanking area.

[0014] Furthermore, a water pump is fixedly connected to the side of the front belt pulley close to the motor, a water inlet pipe is fixedly connected to the side of the water pump away from the belt pulley, an end of the water inlet pipe away from the water pump is connected to the liquid storage tank, and a water outlet pipe is fixedly connected to the top of the water pump. This arrangement drives the coolant circulation inside the liquid storage tank through the water pump.

[0015] Furthermore, one end of the water outlet pipe away from the water pump is connected to a cooling box, a discharge pipe is fixedly connected to the inside of the cooling box, the top of the discharge pipe is connected to the bottom of the mold box, a side of the discharge pipe close to the water outlet pipe is fixedly connected to a liquid return pipe, and one end of the liquid return pipe away from the cooling box is connected to a liquid storage tank. This arrangement is for the convenience of recycling the coolant.

[0016] The utility model has the following beneficial effects:

[0017] (1) The utility model drives the fan blades to rotate through a bidirectional motor to dissipate heat from the discharge pipe. At the same time, the bidirectional motor drives the belt pulley to rotate, and the belt pulley drives the water pump to rotate. The water pump draws the coolant in the liquid storage tank into the cooling box, thereby reducing the temperature of the discharge pipe. At the same time, the return pipe at the bottom will flow the high-temperature coolant in the cooling box into the liquid storage tank for cooling, forming a circulation, thereby effectively cooling the discharge pipe and preventing the discharge pipe from being too hot, causing the model to fuse.

[0018] () The utility model starts the electric telescopic rod, and the electric telescopic rod moves to the left, which will drive the fixed plate to move. The fixed plate will drive the mounting plate to move through the fixed rod, and the mounting plate will drive the left mold to move. When it moves to a certain distance, the blocking rod will pass through the push groove on the fixed plate, and the fixed plate will continue to move to the left. The blocking rod will limit the movement of the push plate, but the fixed plate will continue to drive the mounting plate to move, thereby compressing the spring and causing the push rod to penetrate into the groove of the left mold, making the model demoulding more convenient.

[0019] Of course, any product implementing the present invention does not necessarily need to achieve all of the advantages described above at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for describing the embodiments are briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0021] Figure 1 This is a schematic diagram of the front view structure of the utility model;

[0022] Figure 2 This is a schematic diagram of the front cross-sectional structure of the utility model;

[0023] Figure 3 This is a schematic diagram of the structure of the injection mechanism of the utility model;

[0024] Figure 4 This is a schematic diagram of the demoulding mechanism structure of the utility model;

[0025] Figure 5 This is a schematic diagram of the cooling mechanism structure of the utility model;

[0026] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0027] In the figure: 1, housing; 11, ventilation net; 12, controller; 13, mold box; 2, injection mechanism; 201, servo motor; 202, screw rod; 203, injection pipe; 204, feed hopper; 205, heater; 206, check valve; 3, demoulding mechanism; 301, injection hole; 302, slide rod; 303, right mold; 304, left mold; 305, groove; 306, mounting plate; 307 , push rod; 308, spring; 309, push plate; 310, fixed rod; 311, fixed plate; 312, electric telescopic rod; 313, stop rod; 4, cooling mechanism; 401, liquid storage tank; 402, motor; 403, fan blade; 404, water pump; 405, pulley; 406, belt; 407, water inlet pipe; 408, water outlet pipe; 409, cooling box; 410, discharge pipe; 411, liquid return pipe. DETAILED DESCRIPTION

[0028] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0029] See also Figure 1 - Figure 5 As shown, the utility model is a cooling structure for the barrel blanking area of ​​an injection molding machine, comprising a housing 1, a ventilation net 11 is fixedly connected to the left and right sides of the housing 1, a controller 12 is fixedly connected to the front of the housing 1, and a mold box 13 is fixedly connected to the top of the housing 1, characterized in that it also includes:

[0030] The injection mechanism 2 includes a servo motor 201 fixedly connected to the top of the housing 1, a screw rod 202 is fixedly connected to the output end of the servo motor 201, and an injection pipe 203 is sleeved on the outer wall of the screw rod 202:

[0031] The top of the injection tube 203 is connected to a feed hopper 204 , and a plurality of heaters 205 are connected to the top of the injection tube 203 . The feed hopper 204 is located on the right side of the heater 205 . A check valve 206 is fixedly connected to one end of the screw rod 202 away from the servo motor 201 .

[0032] A demoulding mechanism 3 is provided inside the mold box 13, and the injection mechanism 2 includes an injection hole 301 opened on the right side of the mold box 13. The end of the injection pipe 203 away from the feed hopper 204 is sleeved inside the injection hole 301. A plurality of slide bars 302 are sleeved on the right side of the mold box 13.

[0033] A right mold 303 is fixedly connected to the right side of the mold box 13, and a left mold 304 is arranged in contact with the left side of the right mold 303. A plurality of grooves 305 are provided on the inner wall of the left mold 304. A mounting plate 306 is fixedly connected to the side of the left mold 304 away from the right mold 303, and the outer wall of the slide rod 302 is sleeved inside the mounting plate 306.

[0034] A plurality of push rods 307 are sleeved on the side of the mounting plate 306 away from the left mold 304. The push rods 307 are located in the groove 305. A plurality of springs 308 are fixedly connected to the side of the mounting plate 306 away from the left mold 304. The push rods 307 are sleeved on the inner side of the springs 308. A push plate 309 is fixedly connected to one end of the push rod 307 away from the mounting plate 306.

[0035] One end of the spring 308 away from the push rod 307 is fixedly connected to the push plate 309, the side of the mounting plate 306 away from the left mold 304 is fixedly connected to the fixing rod 310, the end of the fixing rod 310 away from the mounting plate 306 is fixedly connected to the fixing plate 311, and the left end of the sliding rod 302 is fixedly connected to the right side of the fixing plate 311.

[0036] The side of the push plate 309 away from the push rod 307 contacts the side of the fixed plate 311 close to the fixed rod 310, and a socket is opened at the central axis of the push plate 309. The side of the fixed plate 311 away from the push plate 309 is fixedly connected to a plurality of electric telescopic rods 312. The end of the electric telescopic rod 312 away from the fixed plate 311 is fixedly connected to the left side inside the mold box 13, and a blocking rod 313 is fixedly connected to the central axis on the left side inside the mold box 13.

[0037] A liquid storage tank 401 is fixedly connected to the bottom wall inside the shell 1, a bidirectional motor 402 is fixedly connected to the top of the liquid storage tank 401, a fan blade 403 is fixedly connected to the left output end of the bidirectional motor 402, and a belt pulley 405 is fixedly connected to the right output end of the motor. Two belt pulleys 405 are provided, and belts 406 are sleeved on the outer walls of the two belt pulleys 405.

[0038] A water pump 404 is fixedly connected to the side of the front belt pulley 405 close to the motor, a water inlet pipe 407 is fixedly connected to the side of the water pump 404 away from the belt pulley 405, one end of the water inlet pipe 407 away from the water pump 404 is connected to the liquid storage tank 401, and a water outlet pipe 408 is fixedly connected to the top of the water pump 404.

[0039] The end of the water outlet pipe 408 away from the water pump 404 is connected to a cooling box 409, and a discharge pipe 410 is fixedly connected to the inside of the cooling box 409. The top of the discharge pipe 410 is connected to the bottom of the mold box 13, and a return liquid pipe 411 is fixedly connected to the side of the discharge pipe 410 close to the water outlet pipe 408. The end of the return liquid pipe 411 away from the cooling box 409 is connected to the liquid storage tank 401.

[0040] When in use, the servo motor 201 is started, and the material is added to the feed hopper 204. The rotation of the servo motor 201 will drive the screw rod 202 to rotate, and the screw rod 202 will push the material to the left. The heater 205 heats and melts the material and injects it into the right mold 303 through the left side of the injection pipe 203. After the model is formed, the electric telescopic rod 312 is started, and the electric telescopic rod 312 moves to the left to drive the fixed plate 311 to move. The fixed plate 311 will drive the mounting plate 306 to move through the fixed rod 310, and the mounting plate 306 will drive the left mold 304 to move. When it moves to a certain distance, the blocking rod 313 will pass through the push groove on the fixed plate 311, and the fixed plate 311 continues to move to the left. The blocking rod 313 will limit the movement of the push plate 309, but the fixed plate 311 will continue to drive the mounting plate 306 to move. 06 moves, thereby compressing the spring 308, so that the push rod 307 penetrates into the groove of the left mold 303, making the model demoulding more convenient. After the model is demoulded, it will fall into the discharge pipe 410, and at the same time, the bidirectional motor 402 will drive the fan blade 403 to rotate to dissipate the heat of the discharge pipe 410. At the same time, the bidirectional motor 402 will drive the belt pulley 405 to rotate, and the belt pulley 405 will drive the water pump 404 to rotate. The water pump 404 will draw the coolant in the liquid storage tank 401 into the cooling tank 409, thereby reducing the temperature of the discharge pipe 410. At the same time, the return liquid pipe 411 at the bottom will flow the high-temperature coolant in the cooling box 409 into the liquid storage tank 401 for cooling, forming a circulation, thereby effectively cooling the discharge pipe 410 to prevent the temperature of the discharge pipe 410 from being too high, causing the model to fuse.

[0041] The preferred embodiments of the utility model disclosed above are only used to help explain the utility model. The preferred embodiments do not describe all the details in detail, nor do they limit the utility model to the specific implementation methods described. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the utility model, so that technicians in the relevant technical field can well understand and use the utility model. The utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A cooling structure for a barrel blanking zone of an injection molding machine, comprising a housing (1), a ventilation net (11) fixedly connected to the left and right sides of the housing (1), a controller (12) fixedly connected to the front of the housing (1), and a mold box (13) fixedly connected to the top of the housing (1), characterized in that: Also includes: A material injection mechanism (2), the material injection mechanism (2) comprising a servo motor (201) fixedly connected to the top of the housing (1), a screw rod (202) fixedly connected to the output end of the servo motor (201), and a material injection pipe (203) sleeved on the outer wall of the screw rod (202); The top of the injection pipe (203) is connected to a feed hopper (204), and the top of the injection pipe (203) is connected to a plurality of heaters (205). The feed hopper (204) is located on the right side of the heater (205), and the end of the spiral rod (202) away from the servo motor (201) is fixedly connected to a check valve (206).

2. The cooling structure of the barrel blanking area of ​​an injection molding machine according to claim 1, characterized in that: The mold box (13) is provided with a demoulding mechanism (3) inside, the injection mechanism (2) includes an injection hole (301) opened on the right side of the mold box (13), the end of the injection pipe (203) away from the feed hopper (204) is sleeved inside the injection hole (301), and the right side of the mold box (13) is sleeved with a plurality of sliding rods (302).

3. The cooling structure of the barrel blanking area of ​​an injection molding machine according to claim 2, characterized in that: A right mold (303) is fixedly connected to the right side of the mold box (13), a left mold (304) is arranged in contact with the left side of the right mold (303), a plurality of grooves (305) are provided on the inner wall of the left mold (304), a mounting plate (306) is fixedly connected to the side of the left mold (304) away from the right mold (303), and the outer wall of the slide rod (302) is sleeved inside the mounting plate (306).

4. The cooling structure of the barrel blanking area of ​​an injection molding machine according to claim 3, characterized in that: A plurality of push rods (307) are sleeved on the side of the mounting plate (306) away from the left mold (304), and the push rods (307) are located in the groove (305). A plurality of springs (308) are fixedly connected to the side of the mounting plate (306) away from the left mold (304), and the push rods (307) are sleeved on the inner side of the springs (308). One end of the push rod (307) away from the mounting plate (306) is fixedly connected to a push plate (309).

5. The cooling structure of the barrel blanking area of ​​an injection molding machine according to claim 4, characterized in that: One end of the spring (308) away from the push rod (307) is fixedly connected to the push plate (309), and one side of the mounting plate (306) away from the left mold (304) is fixedly connected to a fixing rod (310), and one end of the fixing rod (310) away from the mounting plate (306) is fixedly connected to a fixing plate (311), and the left end of the sliding rod (302) is fixedly connected to the right side of the fixing plate (311).

6. The cooling structure of the barrel blanking area of ​​an injection molding machine according to claim 5, characterized in that: The side of the push plate (309) away from the push rod (307) contacts the side of the fixed plate (311) close to the fixed rod (310), a plug hole is provided at the central axis of the push plate (309), a side of the fixed plate (311) away from the push plate (309) is fixedly connected to a plurality of electric telescopic rods (312), one end of the electric telescopic rod (312) away from the fixed plate (311) is fixedly connected to the left side inside the mold box (13), and a blocking rod (313) is fixedly connected to the central axis on the left side inside the mold box (13).

7. The cooling structure of the barrel blanking area of ​​an injection molding machine according to claim 1, characterized in that: A liquid storage tank (401) is fixedly connected to the bottom wall inside the housing (1), a bidirectional motor (402) is fixedly connected to the top of the liquid storage tank (401), a fan blade (403) is fixedly connected to the left output end of the bidirectional motor (402), and a belt pulley (405) is fixedly connected to the right output end of the motor, two belt pulleys (405) are provided, and belts (406) are sleeved on the outer walls of the two belt pulleys (405).

8. The cooling structure of the barrel blanking area of ​​an injection molding machine according to claim 7, characterized in that: A water pump (404) is fixedly connected to the side of the belt pulley (405) near the motor in the front, a water inlet pipe (407) is fixedly connected to the side of the water pump (404) away from the belt pulley (405), an end of the water inlet pipe (407) away from the water pump (404) is connected to the liquid storage tank (401), and a water outlet pipe (408) is fixedly connected to the top of the water pump (404).

9. The cooling structure of the barrel blanking area of ​​an injection molding machine according to claim 8, characterized in that: The end of the water outlet pipe (408) away from the water pump (404) is connected to a cooling box (409), and a discharge pipe (410) is fixedly connected inside the cooling box (409). The top of the discharge pipe (410) is connected to the bottom of the mold box (13), and a return pipe (411) is fixedly connected to the side of the discharge pipe (410) close to the water outlet pipe (408), and the end of the return pipe (411) away from the cooling box (409) is connected to the liquid storage tank (401).

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