A kind of optical axis quenching machine tool for injection molding machine

Abstract

The present invention relates to the field of surface quenching technology, and more specifically, to a machine tool for quenching an optical axis for an injection molding machine. It includes a supporting mechanism, a feeding mechanism, a conveying mechanism, a quenching mechanism and a discharging mechanism; the conveying mechanism is fixedly arranged at the upper end of the supporting mechanism, the feeding mechanism and the discharging mechanism are respectively arranged at the two ends of the conveying mechanism, and the quenching mechanism is arranged in the middle of the conveying mechanism; the conveying mechanism includes a driving wheel group and a passive wheel group arranged in the same direction, the driving wheel group is a straight wheel, the passive wheel group includes an angled side wheel and a passive wheel seat, an angle is arranged between the angled side wheel and the driving wheel group, the optical axis to be quenched is arranged above the driving wheel group and the passive wheel group, and one end of the driving wheel group is connected to a driving motor; the quenching mechanism includes a heating sensor, and the heating sensor is arranged on the motion path of the optical axis to be quenched. The present invention can continuously feed materials without interruption, has high production efficiency, less no-load energy waste, and high economy.

Description

Technical Field

[0001] The invention relates to the technical field of surface quenching, and more specifically to an optical axis quenching machine tool for an injection molding machine. Background Art

[0002] In the current field of induction heating surface treatment, vertical machine tools are the mainstream of induction machine tools because of their good adaptability, strong versatility, flexible processing, and the ability to perform both full and partial quenching. However, in the induction quenching of uniform specifications and full-length optical axes, vertical machine tools have disadvantages such as a lot of waste in loading and unloading movements and insufficient long-axis travel. Ordinary horizontal machine tools are driven by a reciprocating mechanism, and have disadvantages such as inability to perform continuous quenching and wasteful movements. Continuous quenching machine tools designed by some manufacturers also have disadvantages such as large quenching deformation, and require the installation of a straightening mechanism to increase costs.

[0003] Therefore, it is necessary to improve the prior art. Summary of the invention

[0004] In order to overcome the deficiencies in the prior art, a light shaft quenching machine tool for an injection molding machine is provided, which can continuously feed materials without interruption, has high production efficiency, and has low no-load energy consumption.

[0005] In order to solve the above technical problems, the technical solution adopted by the present invention is:

[0006] An optical axis quenching machine tool for an injection molding machine comprises a supporting mechanism, a feeding mechanism, a conveying mechanism, a quenching mechanism and a discharging mechanism; the conveying mechanism is arranged at the upper end of the supporting mechanism, the feeding mechanism and the discharging mechanism are arranged at the two ends of the conveying mechanism respectively, and the quenching mechanism is arranged in the middle of the conveying mechanism;

[0007] The conveying mechanism comprises a driving wheel group and a passive wheel group arranged in the same direction, wherein the driving wheel group is a straight wheel, and the passive wheel group comprises an angled side wheel and a passive wheel seat, an angle is set between the angled side wheel and the driving wheel group, the optical axis to be quenched is set above the driving wheel group and the passive wheel group, and one end of the driving wheel group is connected to a driving motor;

[0008] The quenching mechanism comprises a heating inductor, which is arranged on the moving path of the optical axis to be quenched.

[0009] Furthermore, the material conveying mechanism includes a feeding mechanism and a discharging mechanism which are arranged in the same straight line, and the quenching mechanism is arranged between the feeding mechanism and the discharging mechanism.

[0010] Furthermore, the straight wheels and angled side wheels of the conveying mechanism are alternately and cross-arranged, and the straight wheels and angled side wheels on the conveying mechanism close to the quenching mechanism are both made of zirconia ceramic rollers.

[0011] Furthermore, the supporting mechanism includes three square steels arranged in parallel, the driving wheel group is arranged on one of the square steels, the passive wheel seat is hinged to the other two square steels through pins, and a linear displacement driving device is arranged at one end of one of the square steels connected to the passive wheel seat.

[0012] Furthermore, the feeding mechanism includes a frame, a storage hopper and a material shifting rod, the storage hopper is tiltedly arranged on the frame, the material shifting rod is arranged between the storage hopper and the material conveying mechanism, the material shifting rod is hinged to the frame, and a return spring is arranged at one end of the material shifting rod close to the storage hopper.

[0013] Furthermore, it also includes a cooling system, which includes a water collecting tank and a water spraying system. The water spraying system is integrated in the heating sensor. The water collecting tank is arranged on the lower side of the supporting mechanism, and a water circulation cooling device is arranged between the water collecting tank and the water spraying system.

[0014] Furthermore, it also includes a local quenching adjustment mechanism, which includes a control device and a limit switch arranged on the material conveying mechanism.

[0015] Furthermore, it also includes a temperature measuring mechanism, which includes an optical fiber thermometer, and the optical fiber thermometer is arranged on the supporting mechanism.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] 1. The present invention combines the advantages of ordinary horizontal machine tools and vertical induction machine tools, makes up for their respective shortcomings, and has a simple structure, replacing the traditional cast iron bed and screw drive structure, significantly reducing the manufacturing cost of induction machine tools. The machine tool does not waste motion during the induction heating surface quenching process, can continuously feed materials without interruption, has high production efficiency, and has less no-load energy consumption.

[0018] 2. The present invention is provided with an automatic feeding mechanism, which controls the feeding speed by means of a feeding lever, so that the feeding speed matches the running speed of the conveying mechanism, and there is no need for a recoil mechanism to repeatedly push the material.

[0019] 3. The present invention is provided with a speed regulating mechanism, through which a linkage control is formed with the temperature measuring mechanism, so that the workpiece reaches the optimal quenching temperature. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The specific embodiments of the present invention will be further described in detail below with reference to the accompanying drawings.

[0021] Figure 1 It is the overall structure diagram of the optical axis quenching machine tool;

[0022] Figure 2 This is the side view of the optical axis quenching machine;

[0023] Figure 3 for Figure 1 A partial enlarged view of middle A;

[0024] Figure 4 for Figure 1 A partial enlarged view of B in the middle;

[0025] Figure 5 for Figure 1 A partial enlarged view of middle C;

[0026] Figure 6 This is the working principle diagram of the linear displacement drive device;

[0027] Figure 7 Schematic diagram of the heating sensor structure.

[0028] In the figure: 1-support mechanism, 2-feeding mechanism, 21-frame, 22-storage hopper, 23-dumping rod, 24-return spring, 3-conveying mechanism, 31-driving wheel group, 32-passive wheel group, 33-angled side wheel, 34-passive wheel seat, 35-driving motor, 36-feeding mechanism, 37-discharging mechanism, 38-linear displacement driving device, 4-quenching mechanism, 41-heating sensor, 5-unloading mechanism, 6-cooling system, 61-water collecting tank, 62-water circulation cooling device, 7-limit switch, 8-optical fiber temperature meter. DETAILED DESCRIPTION

[0029] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0030] Example:

[0031] like Figures 1 to 7 As shown, a machine tool for quenching an optical axis of an injection molding machine comprises a supporting mechanism 1, a feeding mechanism 2, a conveying mechanism 3, a quenching mechanism 4, a discharging mechanism 5 and a local quenching adjustment mechanism; the conveying mechanism 3 is arranged at the upper end of the supporting mechanism 1, the conveying mechanism 3 comprises a feeding mechanism 36 and a discharging mechanism 37 arranged in the same straight line, the feeding mechanism 2 and the discharging mechanism 5 are respectively arranged at the two ends of the conveying mechanism 3, and the quenching mechanism 4 is arranged between the feeding mechanism 36 and the discharging mechanism 37;

[0032] The feeding mechanism 36 and the discharging mechanism 37 both include a driving wheel group 31 and a passive wheel group 32. The driving wheel group 31 and the passive wheel group 32 are arranged in the same direction. The driving wheel group 31 is a straight wheel. The passive wheel group 32 includes an angled side wheel 33 and a passive wheel seat 34. An angle is set between the angled side wheel 33 and the driving wheel group 31.

[0033] The supporting mechanism 1 includes three square steels 11 arranged in parallel, wherein the right square steel can move relative to the other two square steels, the driving wheel group 31 is arranged on the left square steel, and the lower ends of the passive wheel seat 34 are respectively hinged with the middle square steel and the right square steel through pins, and a linear displacement driving device 38 is arranged at one end of the right square steel. The linear displacement driving device 38 drives the right square steel to move, thereby driving the passive wheel seat to rotate, changing the angle of the angled side wheel 33, so that the conveying speed of the workpiece is changed, and the angled side wheel 33 is controlled in linkage, the running speed of the workpiece is uniform, and the adjustment method is simple.

[0034] The linear displacement driving device 38 can be driven by a motor or hydraulic pressure or pneumatic pressure.

[0035] The straight wheels and angled side wheels 33 of the conveying mechanism 3 close to the quenching mechanism 4 are both zirconia ceramic rollers that are resistant to electromagnetic field induction, so as to prevent damage due to electromagnetic induction heating and extend the service life.

[0036] The straight wheels and angled side wheels 33 of the conveying mechanism are alternately arranged, and the optical axis to be quenched is arranged above the driving wheel group 31 and the passive wheel group 32, which can provide support for optical axes of different thicknesses. One end of the driving wheel group 31 is connected to a driving motor 35, and the speed of the driving motor 35 is controlled by a frequency converter;

[0037] The conveying speed of the workpiece is controlled by the linear displacement drive device 38 or the drive motor 35 .

[0038] The quenching mechanism 4 includes a heating inductor 41 , which is arranged on the moving path of the optical axis to be quenched. When the optical axis passes through the induction coil of the heating inductor 41 , the heating inductor performs induction heating.

[0039] A cooling system 6 is arranged on the rear side of the quenching mechanism 4, including a water collecting tank 61 and a water spraying system. The water spraying system is integrated in the heating sensor 41. A water spraying hole is arranged on the inner side of the heating sensor. The water spraying hole is obliquely arranged on the slope on one side of the heating sensor, and water is sprayed to the workpiece at an angle of 45 degrees for cooling. The water spraying holes are arranged in the same vertical plane as much as possible to ensure uniform cooling. The water collecting tank 61 is arranged on the lower side of the supporting mechanism 1 for collecting used water. A water circulation cooling device 62 is arranged between the water collecting tank 61 and the water spraying system. The water in the water collecting tank 61 is processed by the water circulation cooling device 62 and reused. A water pipe is connected between the water circulation cooling device 62 and the water spraying system.

[0040] The support mechanism 1 is made of square steel that has been subjected to aging treatment, and has lower manufacturing difficulty and cost than a common casting bed.

[0041] The feeding mechanism 2 includes a frame 21, a storage hopper 22 and a material shifting rod 23. The storage hopper 22 is tilted on the frame 21. The material shifting rod 23 is arranged between the storage hopper 22 and the feeding mechanism 36 of the conveying mechanism 3. The material shifting rod 23 is hinged to the frame 21. A return spring 24 is arranged at one end of the material shifting rod 23 close to the storage hopper 22.

[0042] The unloading mechanism 5 includes an unloading oil cylinder, through which the quenched workpiece is pushed out of the unloading mechanism 37 to complete unloading.

[0043] The local quenching adjustment mechanism includes a control device and a limit switch 7 arranged on the conveying mechanism 3. The number of limit switches 7 can be set according to demand. When the end of the optical axis hits the first limit switch 7 on the discharging mechanism 37, the control device controls the heating power supply of the quenching mechanism 4 to start heating. When the quenching operation of the part to be quenched is completed, the end of the optical axis hits the second limit switch, and the heating power supply stops heating. Or during the heating quenching process, when the end of the optical axis hits the first limit switch, the heating power supply stops heating. When the part that does not need to be quenched passes, the end of the optical axis hits the second limit switch, and the heating power supply starts heating again. The local quenching adjustment mechanism has a simple principle and low manufacturing cost.

[0044] The temperature measuring mechanism includes an optical fiber thermometer 8, which is arranged on the supporting mechanism and is used to detect the quenching temperature of the workpiece. The temperature feedback from the optical fiber thermometer is used to adjust the rotation speed of the drive motor 35 or the angle of the angled side wheel 33 to adjust the speed of the workpiece so that the workpiece reaches the optimal quenching temperature.

[0045] Working principle:

[0046] 1. When there is no workpiece at the left end of the material-moving rod 23, the right end of the material-moving rod 23 moves downward under the pulling force of the return spring 24, and the workpiece in the storage hopper 22 enters the material-moving rod. When the workpiece passes the hinge point of the material-moving rod 23, the left end of the material-moving rod 23 moves downward under the action of the gravity of the workpiece, and the workpiece is sent into the conveying mechanism. At the same time, the right end rises to prevent the workpiece from continuing to enter the material-moving rod.

[0047] 2. The material conveying mechanism 3 is started, and the feeding mechanism 36 drives the workpiece through the quenching mechanism 4 to perform quenching operation, while the cooling system 6 cools down the temperature.

[0048] 3. The discharging mechanism 37 delivers the quenched workpiece, and then the unloading mechanism 5 pushes the workpiece out of the discharging mechanism 37 to complete the quenching.

[0049] Only the preferred embodiments of the present invention are described in detail above, but the present invention is not limited to the above embodiments. Various changes can be made within the knowledge scope of ordinary technicians in this field without departing from the purpose of the present invention, and various changes should be included in the protection scope of the present invention.

Claims

1. An optical axis quenching machine tool for an injection molding machine, characterized in that: It comprises a supporting mechanism (1), a loading mechanism (2), a conveying mechanism (3), a quenching mechanism (4) and a discharging mechanism (5); the conveying mechanism (3) is arranged at the upper end of the supporting mechanism (1), the loading mechanism (2) and the discharging mechanism (5) are arranged at the two ends of the conveying mechanism (3), respectively, and the quenching mechanism (4) is arranged in the middle of the conveying mechanism (3); The material conveying mechanism (3) comprises a driving wheel group (31) and a driven wheel group (32) arranged in the same direction, the driving wheel group (31) is a straight wheel, the driven wheel group (32) comprises an angled side wheel (33) and a driven wheel seat (34), an angle is provided between the angled side wheel (33) and the driving wheel group (31), the optical axis to be quenched is provided above the driving wheel group (31) and the driven wheel group (32), and one end of the driving wheel group (31) is connected to a driving motor (35); The quenching mechanism (4) comprises a heating sensor (41), and the heating sensor (41) is arranged on the movement path of the optical axis to be quenched; The support mechanism (1) comprises three square steels (11) arranged in parallel, the driving wheel group (31) is arranged on one of the square steels, the passive wheel seat (34) is respectively hinged to the other two square steels via pins, and a linear displacement driving device (38) is arranged at one end of one of the square steels connected to the passive wheel seat (34); The right side square steel is driven to move by a linear displacement driving device (38), thereby driving the passive wheel seat (34) to rotate, changing the angle of the angled side wheel (33), thereby changing the conveying speed of the workpiece; The invention also comprises a cooling system (6), wherein the cooling system (6) comprises a water collecting tank (61) and a water spraying system, wherein the water spraying system is integrated in the heating sensor (41), wherein a water spraying hole is arranged on the inner side of the heating sensor (41), wherein the water spraying hole is arranged obliquely on a slope on one side of the heating sensor, and water is sprayed at an angle of 45 degrees to cool the workpiece, wherein the water collecting tank (61) is arranged on the lower side of the supporting mechanism (1), and a water circulation cooling device (62) is arranged between the water collecting tank (61) and the water spraying system.

2. The optical axis quenching machine tool for injection molding machine according to claim 1, characterized in that: The straight wheels and angled side wheels (33) of the conveying mechanism (3) are alternately arranged, and the straight wheels and angled side wheels (33) on the conveying mechanism (3) close to the quenching mechanism (4) are both zirconium oxide ceramic rollers.

3. The optical axis quenching machine tool for injection molding machine according to claim 1, characterized in that: The feeding mechanism (2) comprises a frame (21), a material storage hopper (22) and a material shifting rod (23); the material storage hopper (22) is arranged on the frame (21) in an inclined manner; the material shifting rod (23) is arranged between the material storage hopper (22) and the material conveying mechanism (3); the material shifting rod (23) is hinged to the frame (21); and a return spring (24) is arranged at one end of the material shifting rod close to the material storage hopper (22).

4. The optical axis quenching machine tool for injection molding machine according to claim 1, characterized in that: It also includes a local quenching adjustment mechanism, which includes a control device and a limit switch (7) arranged on the material conveying mechanism.

5. The optical axis quenching machine tool for injection molding machine according to claim 1, characterized in that: It also comprises a temperature measuring mechanism, the temperature measuring mechanism comprising an optical fiber temperature measuring instrument (8), and the optical fiber temperature measuring instrument is arranged on the supporting mechanism (1).

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