An automatic centrifugal device and centrifugal method for a super heavy-duty injection molding machine bimetallic barrel

Abstract

The present invention discloses an automatic centrifugal device for a super-heavy-duty injection molding machine bimetallic barrel, comprising a frame, a centrifugal mechanism, a roller table, a centrifugal side push mechanism, a roller table side push mechanism, a centrifuge cooling mechanism and a controller, wherein the centrifugal mechanism and the roller table are arranged on the frame one after the other; the centrifugal mechanism comprises two centrifugal rollers arranged in parallel one after the other; the feed end and the discharge end of the roller table are respectively provided with photoelectric position detection switches; a push rod is provided between the two centrifugal rollers so as to be liftable; the centrifugal side push mechanism is provided at the front side of the centrifugal roller; and the roller table side push mechanism is provided at the rear side of the roller table. The roller table of the automatic centrifugal device of the present invention is directly connected to the induction heating furnace of the barrel, and the barrel directly enters the roller table of the centrifuge after the induction heating is completed, and there is no need for hoisting and transportation, and the surface temperature loss of the barrel is less; the centrifugal efficiency is high, and the barrel qualified rate is high. The present invention also discloses a centrifugal method for an automatic centrifugal device for a super-heavy-duty injection molding machine bimetallic barrel.

Description

Technical Field

[0001] The invention relates to an automatic centrifugal device for a bimetallic barrel of an ultra-heavy injection molding machine and a centrifugal method thereof. Background Art

[0002] Usually, small-diameter (less than 200 mm) bimetallic barrels are heated by gas furnaces or resistance furnaces. Not only does the heating time take a long time, usually more than one or two hours, but there is also a lot of oxide scale during the heating process, the workshop temperature is high, and the workshop dust is relatively serious. After the heating is completed, the barrel needs to be manually hoisted to the centrifuge by a crane. Since the temperature of the blank is as high as 1100 degrees Celsius, it takes a long time to manually hoist and transport. When the barrel starts to centrifuge, the surface temperature of the barrel drops a lot, which has an adverse effect on the subsequent centrifugal process. The working environment of the workers is relatively poor, the output is not high, and the yield rate depends largely on the level of the operator. Summary of the invention

[0003] The purpose of the present invention is to overcome the defects of the prior art and provide an automatic centrifugal device for a super-heavy-duty injection molding machine bimetallic barrel, which is directly connected to the barrel induction heating furnace. After the barrel is induction heated, it directly enters the centrifuge roller without lifting and transportation. The intermediate interval time is less than one minute, and the temperature loss on the barrel surface is small; the centrifugal efficiency is high and the barrel qualification rate is high.

[0004] Another object of the present invention is to provide a centrifugal method for an automatic centrifugal device of a bimetallic barrel of an ultra-heavy injection molding machine.

[0005] A technical solution to achieve the above purpose is: an automatic centrifugal device for a super heavy-duty injection molding machine bimetallic barrel, comprising a frame, a centrifugal mechanism, a roller table, a centrifugal side pusher mechanism, a roller table side pusher mechanism, a centrifuge cooling mechanism and a controller, wherein:

[0006] The centrifugal mechanism and the roller are arranged on the frame one after the other, and the roller is driven by a roller motor;

[0007] The centrifugal mechanism comprises two centrifugal rollers arranged in parallel one behind the other, and the two centrifugal rollers are driven by a centrifugal roller driving motor;

[0008] The feed end and the discharge end of the roller conveyor are respectively provided with photoelectric position detection switches;

[0009] A push rod is provided between the two centrifugal rollers so as to be liftable, and the push rod is driven by a push rod lifting motor;

[0010] The centrifugal side pushing mechanism is arranged on the front side of the centrifugal roller;

[0011] The roller side pushing mechanism is arranged at the rear side of the roller;

[0012] The centrifuge cooling mechanism is arranged on the frame;

[0013] The roller motor, centrifugal roller driving motor, photoelectric position detection switch, push rod lifting motor, centrifugal side pushing mechanism, roller side pushing mechanism and centrifuge cooling mechanism communicate with the controller respectively.

[0014] The above-mentioned automatic centrifugal device for a super-heavy-duty injection molding machine bimetallic barrel, wherein the centrifugal side pusher mechanism and the roller side pusher mechanism have the same structure, both comprising a pusher frame, a reducer, a power gear, and a pusher rack and a pusher front end plate used in conjunction with the power gear, the reducer and the pusher rack are both arranged on the pusher frame, the reducer drives the power gear to rotate, and the pusher front end plate is arranged at the end of the pusher rack;

[0015] The front end plates of the centrifugal side pushing mechanism and the roller side pushing mechanism are arranged opposite to each other;

[0016] The reducers of the centrifugal side pushing mechanism and the roller side pushing mechanism communicate with the controller respectively.

[0017] In the above-mentioned automatic centrifugal device for a bimetallic barrel of an ultra-heavy injection molding machine, the feed end of the roller is connected to the barrel induction heating furnace.

[0018] The present invention also provides a centrifugal method of an automatic centrifugal device for a super heavy-duty injection molding machine bimetallic barrel, comprising the following steps:

[0019] S1, debugging steps: before the barrel is formally centrifuged, first put the unheated barrel to be processed on the roller table, adjust the photoelectric position detection switch to ensure that the photoelectric position detection switch accurately detects the barrel in the correct position on the roller table, adjust the centrifugal side material receiving position, material pushing position and original position of the centrifugal side pushing mechanism, adjust the roller side pushing position, material receiving position and original position of the roller side pushing mechanism, and then use the unheated barrel for a full automatic test to ensure that the barrels are in the correct position;

[0020] S2, centrifugal process steps: when the production starts, the barrel with a temperature of 1100 degrees Celsius is sent out from the induction heating furnace, and after advancing to the roller table, the photoelectric position detection switch detects that the barrel stops at the correct position of the roller table, and the photoelectric position detection switch feeds back information to the controller. The controller controls the push rod lifting motor to drive the push rod to lift up according to the feedback information of the photoelectric position detection switch, and controls the centrifugal side pushing mechanism to reach the centrifugal side receiving position, and then the controller controls the roller side pushing mechanism to push the barrel forward to the roller side pushing position. Due to gravity, the barrel contacts the front push plate of the centrifugal side pushing mechanism, and the centrifugal side pushing mechanism slowly retreats to ensure that the barrel contacts the push rod slowly, and then the centrifugal side pushing mechanism retreats to the original position of the centrifugal side, and the controller controls the push rod lifting motor to drive the push rod to fall to its original position, and the barrel contacts the two centrifugal rollers, and then the controller controls the centrifugal drive motor to drive the two centrifugal rollers to rotate at high speed for centrifugation;

[0021] S3, discharging step: after the centrifugal process is completed, the controller controls the push rod lifting motor to drive the push rod to lift up the barrel together, the controller controls the roller side pushing mechanism to advance to the roller side material receiving position, the centrifugal side pushing mechanism slowly pushes forward, and after contacting the barrel, pushes the barrel to the centrifugal side pushing position, the barrel contacts the front push plate of the roller side pushing mechanism due to gravity, and then the roller side pushing mechanism slowly retreats until the barrel stops steadily on the roller, at this time the controller controls the push rod, the roller side pushing mechanism and the centrifugal side pushing mechanism to all retreat to their original positions, the controller controls the roller motor to start, and drives the centrifuged barrel to be transported forward to the subsequent insulation furnace roller, after the centrifuged barrel is completely sent out, the roller motor stops, waiting for the next barrel to be sent out from the induction heating furnace.

[0022] The centrifugal method of the automatic centrifugal device of the bimetallic barrel of the super heavy-duty injection molding machine is as follows: during the operation of the automatic centrifugal device, the centrifuge cooling mechanism cools the entire device.

[0023] The technical scheme of the automatic centrifugal device and centrifugal method of the super-heavy bimetallic barrel of the injection molding machine of the present invention is mainly used for centrifugal casting of bimetallic barrels of injection molding machines with diameters ranging from 230 mm to 460 mm. The weight of the barrel of the injection molding machine with the maximum centrifugal force can reach 6 tons and the maximum length can reach 6 meters. It is directly connected to the induction heating furnace of the barrel. After the induction heating of the barrel is completed, it directly enters the centrifuge roller without hoisting and transportation. The intermediate interval time is less than one minute, and the temperature loss of the barrel surface is small; the centrifugal efficiency is high, and the barrel is sliced ​​and tested after batch production. The thickness of the metal layer inside the barrel is uniform and the qualified rate is high. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a structural diagram of an automatic centrifugal device for a super heavy-duty injection molding machine bimetallic barrel of the present invention;

[0025] Figure 2 It is an electrical principle diagram of an automatic centrifugal device for a super heavy-duty injection molding machine bimetallic barrel of the present invention;

[0026] Figure 3 The barrel is transferred to the roller table;

[0027] Figure 4 Push the barrel to the centrifugal position;

[0028] Figure 5 The barrel is lowered to contact with two centrifugal rollers;

[0029] Figure 6 After the centrifugal process is completed, the barrel returns;

[0030] Figure 7 After centrifugation, the barrel returns to the roller table;

[0031] Figure 8 After centrifugation is completed, the barrel discharges the material along the roller conveyor. DETAILED DESCRIPTION

[0032] In order to enable those skilled in the art to better understand the technical solution of the present invention, the specific implementation methods thereof are described in detail below in conjunction with the accompanying drawings:

[0033] See also Figure 1 and Figure 2 According to an embodiment of the present invention, an automatic centrifugal device for a super heavy-duty injection molding machine bimetallic barrel includes a frame 8, a centrifugal mechanism, a roller table 2, a centrifugal side pushing mechanism 4, a roller table side pushing mechanism 5, a centrifuge cooling mechanism 9 and a controller 11.

[0034] The centrifugal mechanism and the roller table 2 are arranged on the frame 8 one after the other, and the roller table 2 is driven by the roller table motor 21; the centrifugal mechanism includes two centrifugal rollers 3 arranged in parallel one after the other, and the two centrifugal rollers 3 are driven by the centrifugal roller driving motor 31; the feeding end and the discharging end of the roller table 2 are respectively provided with a photoelectric position detection switch 1; a push rod 6 is arranged between the two centrifugal rollers 3 so as to be liftable, and the push rod 6 is driven by the push rod lifting motor 61; the centrifugal side pushing mechanism 4 is arranged on the front side of the centrifugal roller 3; the roller table side pushing mechanism 5 is arranged on the rear side of the roller table 2; the centrifuge cooling mechanism 9 is arranged on the frame 8, and is used to provide water cooling for the frame.

[0035] The centrifugal side pushing mechanism 4 and the roller side pushing mechanism 5 have the same structure, both of which include a pushing frame 41, a reducer 42, a power gear, an ejection rack used in conjunction with the power gear, and a pushing front end plate 43. The reducer 42 and the ejection rack are both arranged on the pushing frame 41. The reducer 42 drives the power gear to rotate. The pushing front end plate 43 is arranged at the end of the ejection rack. When the power gear rotates, it drives the ejection rack to move forward and backward, thereby driving the pushing front end plate 43 to move forward and backward.

[0036] The pushing front end plates 43 of the centrifugal side pushing mechanism 4 and the roller side pushing mechanism 5 are arranged opposite to each other.

[0037] The roller motor 21, the centrifugal roller drive motor 31, the photoelectric position detection switch 1, the push rod lifting motor 61, the reducer 43 of the centrifugal side pushing mechanism 4, the reducer of the roller side pushing mechanism 5 and the centrifuge cooling mechanism 9 communicate with the controller 11 respectively.

[0038] The feeding end of the roller 2 is connected to the induction heating furnace of the barrel, and the discharging end is connected to the roller of the insulation furnace.

[0039] See also Figures 3 to 8 The present invention also provides a centrifugal method for an automatic centrifugal device of a super heavy-duty injection molding machine bimetallic barrel, comprising the following steps:

[0040] S1, debugging steps: before the barrel 7 is formally centrifuged, first put the unheated barrel to be processed on the roller 2, adjust the photoelectric position detection switch 2, ensure that the photoelectric position detection switch 2 accurately detects the barrel in the correct position of the roller, adjust the centrifugal side material receiving position, material pushing position and original position of the centrifugal side pushing mechanism 4, adjust the roller side pushing position, material receiving position and original position of the roller side pushing mechanism 5, and then use the unheated barrel for full automatic testing to ensure that the barrels are in the correct position;

[0041] S2, centrifugal process step: At the beginning of production, the barrel 7 with a temperature of 1100 degrees Celsius is sent out from the induction heating furnace and moves to the roller 2 (see Figure 3 ), the photoelectric position detection switch 1 detects that the barrel stops at the correct position of the roller, and the photoelectric position detection switch 1 feeds back information to the controller 11. The controller 11 controls the push rod lifting motor 61 to drive the push rod 6 to lift up according to the feedback information of the photoelectric position detection switch 1, and controls the centrifugal side pushing mechanism 4 to reach the centrifugal side receiving position. Then the controller 11 controls the roller side pushing mechanism 5 to push the barrel forward to the roller side pushing position. The barrel 7 contacts the front end plate of the centrifugal side pushing mechanism due to gravity (see Figure 4 ), the centrifugal side pushing mechanism 4 slowly retreats to ensure that the barrel 7 slowly contacts the push rod 6, and then the centrifugal side pushing mechanism 4 retreats to the original position on the centrifugal side, and the controller 2 controls the push rod lifting motor 61 to drive the push rod 6 to fall to its original position, and the barrel 7 contacts the two centrifugal rollers 3 (see Figure 5 ), then the controller 11 controls the centrifugal drive motor 31 to drive the two centrifugal rollers 3 to rotate at high speed for centrifugation;

[0042] S3, discharging step: after the centrifugal process is completed, the controller 11 controls the push rod lifting motor 61 to drive the push rod 6 to lift up the barrel 2, and the controller 11 controls the roller side pushing mechanism 5 to advance to the roller side material receiving position, and the centrifugal side pushing mechanism 4 pushes forward slowly, and after contacting the barrel 7, pushes the barrel forward to the centrifugal side pushing position (see Figure 6 ), the barrel 2 contacts the front end plate of the roller side pushing mechanism 5 due to gravity (see Figure 7 ), then the roller side pusher mechanism 5 slowly retreats until the barrel 2 stops steadily on the roller 2 (see Figure 8 ), at this time, the controller 11 controls the push rod 6, the roller side pushing mechanism 5 and the centrifugal side pushing mechanism 4 to return to their original positions, and the controller 11 controls the roller motor 21 to start, driving the centrifuged barrel 2 to be transported forward to the subsequent insulation furnace roller. After the centrifuged barrel is completely sent out, the roller motor 21 stops, waiting for the next barrel to be sent out from the induction heating furnace.

[0043] During the operation of the entire automatic centrifugal device, the centrifuge cooling mechanism 9 cools the entire device to prevent the high temperature of the barrel from affecting the stability of key parts of the equipment.

[0044] The automatic centrifugal device and centrifugal method of the super-heavy-duty injection molding machine bimetallic barrel of the present invention can process super-heavy-duty injection molding machine bimetallic barrel with a maximum processing length of 6 meters and a weight of 6 tons, and no longer requires a large number of manual lifting, transportation and unloading processes in the conventional heating mode, thereby realizing the full-automatic centrifugal process of the super-heavy-duty injection molding machine bimetallic barrel, and the freely adjustable centrifugal roller speed ensures that the melted metal in the barrel is evenly distributed along the length direction of the barrel, effectively solving the problems of large impact, radiant heat isolation and protection, automatic outflow of barrel oxide scale, roller cooling and the like during high-speed centrifugation of the super-heavy-duty injection molding machine bimetallic barrel, thereby realizing the full automation of the centrifugal process of the super-heavy-duty injection molding machine bimetallic barrel.

[0045] The torque provided by the centrifugal drive motor 31 is determined by the rotational inertia of the barrel 7 and the centrifugal roller, and the maximum speed is determined by the customer's process requirements. The key to this equipment is the large impact of the heavy-duty bimetallic barrel during high-speed centrifugation, the isolation and protection of radiant heat, the automatic outflow of the barrel oxide scale, the cooling of the rollers, etc.

[0046] The centrifuge cooling mechanism 9 is used to cool the entire device to ensure that the operating temperature of key parts of the equipment, such as the frame, the centrifugal roller body, and the bearing seats on both sides of the centrifugal roller, is not greater than 100 degrees Celsius and is not deformed by heat.

[0047] The automatic centrifugal device and centrifugal method of the super-heavy-duty injection molding machine bimetallic barrel of the present invention are equipped with a photoelectric position detection switch for injection molding machine barrels of different diameters. For blanks of the same diameter, it is only necessary to calibrate the feeding position, the centrifugal side push position and the roller side push position once. In actual use, the corresponding formula can be selected in the subsequent operating table touch screen program to realize automatic centrifugation of injection molding machine barrels of different diameters and lengths. The equipment can adapt to the centrifugal process of barrels of various specifications within the specification range, realize automatic control to a greater extent, and save labor input; the equipment is easy to adjust and is more adaptable to bimetallic barrel production lines with different processes.

[0048] In summary, the automatic centrifugal device and centrifugal method of the super-heavy-duty injection molding machine bimetallic barrel of the present invention are directly connected to the barrel induction heating furnace. After the barrel is induction heated, it directly enters the centrifuge roller without lifting and transportation. The intermediate interval time is less than one minute, and the temperature loss on the barrel surface is small; the centrifugal efficiency is high and the barrel qualification rate is high.

[0049] Those skilled in the art should recognize that the above embodiments are only used to illustrate the present invention, and are not intended to limit the present invention. As long as they are within the spirit of the present invention, any changes or modifications to the above embodiments will fall within the scope of the claims of the present invention.

Claims

1. An automatic centrifugal device for a super heavy-duty injection molding machine bimetallic barrel, characterized in that: It includes a frame, a centrifugal mechanism, a roller table, a centrifugal side pusher mechanism, a roller table side pusher mechanism, a centrifuge cooling mechanism and a controller, wherein: The centrifugal mechanism and the roller are arranged on the frame one after the other, and the roller is driven by a roller motor; The centrifugal mechanism comprises two centrifugal rollers arranged in parallel one behind the other, and the two centrifugal rollers are driven by a centrifugal roller driving motor; The feed end and the discharge end of the roller conveyor are respectively provided with photoelectric position detection switches; A push rod is provided between the two centrifugal rollers so as to be liftable, and the push rod is driven by a push rod lifting motor; The centrifugal side pushing mechanism is arranged on the front side of the centrifugal roller; The roller side pushing mechanism is arranged at the rear side of the roller; The centrifuge cooling mechanism is arranged on the frame; The roller motor, centrifugal roller driving motor, photoelectric position detection switch, push rod lifting motor, centrifugal side pushing mechanism, roller side pushing mechanism and centrifuge cooling mechanism communicate with the controller respectively.

2. The automatic centrifugal device for a super heavy-duty injection molding machine bimetallic barrel as claimed in claim 1, characterized in that: The centrifugal side push mechanism and the roller side push mechanism have the same structure, both of which include a pusher frame, a reducer, a power gear, a push-out rack used in conjunction with the power gear, and a pusher front end plate, the reducer and the push-out rack are both arranged on the pusher frame, the reducer drives the power gear to rotate, and the pusher front end plate is arranged at the end of the push-out rack; The front end plates of the centrifugal side pushing mechanism and the roller side pushing mechanism are arranged opposite to each other; The reducers of the centrifugal side pushing mechanism and the roller side pushing mechanism communicate with the controller respectively.

3. The automatic centrifugal device for a super heavy-duty injection molding machine bimetallic barrel as claimed in claim 1, characterized in that: The feeding end of the roller is connected to the barrel induction heating furnace.

4. The centrifugal method of the automatic centrifugal device of the super heavy-duty injection molding machine bimetallic barrel as claimed in claim 1, characterized in that: The following steps are involved: S1, debugging steps: before the barrel is formally centrifuged, first put the unheated barrel to be processed on the roller table, adjust the photoelectric position detection switch to ensure that the photoelectric position detection switch accurately detects the barrel in the correct position on the roller table, adjust the centrifugal side material receiving position, material pushing position and original position of the centrifugal side pushing mechanism, adjust the roller side pushing position, material receiving position and original position of the roller side pushing mechanism, and then use the unheated barrel for a full automatic test to ensure that the barrels are in the correct position; S2, centrifugal process steps: when the production starts, the barrel with a temperature of 1100 degrees Celsius is sent out from the induction heating furnace, and after advancing to the roller table, the photoelectric position detection switch detects that the barrel stops at the correct position of the roller table, and the photoelectric position detection switch feeds back information to the controller. The controller controls the push rod lifting motor to drive the push rod to lift up according to the feedback information of the photoelectric position detection switch, and controls the centrifugal side pushing mechanism to reach the centrifugal side receiving position, and then the controller controls the roller side pushing mechanism to push the barrel forward to the roller side pushing position. Due to gravity, the barrel contacts the front push plate of the centrifugal side pushing mechanism, and the centrifugal side pushing mechanism slowly retreats to ensure that the barrel contacts the push rod slowly, and then the centrifugal side pushing mechanism retreats to the original position of the centrifugal side, and the controller controls the push rod lifting motor to drive the push rod to fall to its original position, and the barrel contacts the two centrifugal rollers, and then the controller controls the centrifugal drive motor to drive the two centrifugal rollers to rotate at high speed for centrifugation; S3, discharging step: after the centrifugal process is completed, the controller controls the push rod lifting motor to drive the push rod to lift up the barrel together, the controller controls the roller side pushing mechanism to advance to the roller side receiving position, the centrifugal side pushing mechanism slowly pushes forward, and after contacting the barrel, pushes the barrel to the centrifugal side pushing position, the barrel contacts the front pushing plate of the roller side pushing mechanism due to gravity, and then the roller side pushing mechanism slowly retreats until the barrel stops steadily on the roller, at this time the controller controls the push rod, the roller side pushing mechanism and the centrifugal side pushing mechanism to all retreat to their original positions, the controller controls the roller motor to start, and drives the centrifuged barrel to be transported forward to the subsequent insulation furnace roller, after the centrifuged barrel is completely sent out, the roller motor stops, waiting for the next barrel to be sent out from the induction heating furnace.

5. The centrifugal method of the automatic centrifugal device of the super heavy-duty injection molding machine bimetallic barrel as claimed in claim 4, characterized in that: During the operation of the automatic centrifuge device, the centrifuge cooling mechanism cools the entire device.

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