Bimetal charging barrel and hardening and tempering device

Abstract

The bimetallic charging barrel comprises a charging barrel body and hard alloy powder bonded to an inner hole of the charging barrel, the hardening and tempering device comprises a workbench, and a front pushing mechanism, a charging barrel frame, a preheating furnace, a pushing and rotating mechanism, a conveying mechanism and a hardening and tempering furnace are sequentially arranged on the workbench from left to right; in the working process, the front pushing mechanism pushes a charging barrel placed on the charging barrel frame into the preheating furnace and meanwhile pushes the preheated charging barrel in the preheating furnace to the conveying mechanism, the pushing and rotating mechanism pushes the preheated charging barrel into the hardening and tempering furnace, and meanwhile the rotating shaft rotates to drive the charging barrel to rotate in the hardening and tempering furnace; and the hard alloy powder in the charging barrel is uniformly heated and then plated into the charging barrel. According to the device, the preheating furnace is additionally arranged in the tempering middle link, so that the tempering time of the charging barrel in the tempering furnace is shortened, the working efficiency is improved, meanwhile, the pushing and rotating mechanism is adopted to enable the charging barrel to rotate at a constant speed in the tempering furnace, and the tempering effect of the charging barrel is better.

Description

Technical Field

[0001] The invention relates to a bimetallic barrel and a quenching and tempering device. 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. The two most critical components are the screw and the barrel. The inner wall of the barrel is subjected to high temperature and high pressure, and the working conditions are quite harsh. The existing barrel processing technology performs quenching and tempering treatment on the inside of the barrel to enhance its physical properties. Summary of the invention

[0003] In view of the shortcomings existing in the above problems, the present invention provides a bimetallic barrel and a tempering device.

[0004] To achieve the above-mentioned purpose, the present invention provides a bimetallic barrel and a quenching and tempering device. The bimetallic barrel comprises a barrel body and cemented carbide powder bonded to the inner hole of the barrel.

[0005] A tempering device includes a workbench, on which are arranged from left to right a front pushing mechanism, a barrel rack, a preheating furnace, a pushing and turning mechanism, a conveying mechanism, and a tempering furnace; the front pushing mechanism includes a front rack track, a front rail car installed on the front rack track, the front rail car is connected to a pushing rod through a connecting plate, and a power motor is installed on the front rail car for the movement of the front rail car; the barrel rack includes an inclined bracket installed on a door-type bracket, the inclined bracket is fixed with welded round steel near the bottom for placing a small-diameter barrel, and a rolling mechanism is installed on the upper part of the inclined bracket for placing a large-diameter barrel; the pushing and turning mechanism includes a rear rack track, the rear rack track is connected to an inner fixing frame through a gear, the inner fixing frame is movably connected to an outer workbench on both sides through a top cylinder, the outer workbench is fixedly connected to a vertical plate below, the vertical plate fixes the rotating shaft through a rotating shaft positioning plate, and a rotating mechanism is installed on the outer workbench; the conveying mechanism includes an I-beam installed on the workbench, a bearing is installed on the I-beam through a bearing seat, and the bearing is used to fix a special-shaped shaft.

[0006] As a further improvement of the present invention, a push head is installed at the front end of the push rod, and the push rod pushes the barrel into the preheating furnace.

[0007] As a further improvement of the present invention, the rolling mechanism comprises a ball bowl mounted on an inclined bracket, and a rolling ball is mounted in the ball bowl.

[0008] As a further improvement of the present invention, a through hole is provided on the upper portion of the inner fixing frame, and a vertical plate is installed in the through hole.

[0009] As a further improvement of the present invention, the lower part of the top cylinder is connected to the inner fixing frame through a lower connecting mechanism, and the upper part of the top cylinder is connected to the outer workbench through an upper connecting mechanism.

[0010] As a further improvement of the present invention, the rotating mechanism includes a gear box installed on the upper part of the outer workbench, one end of the gear box is connected to the rotating motor, and a sprocket is installed on the other end of the gear box. The sprocket drives the rotating shaft to rotate through a chain, and three claws are installed on the other end of the rotating shaft.

[0011] As a further improvement of the present invention, a positioning groove is processed in the middle of the special-shaped shaft, and a barrel is placed in the positioning groove.

[0012] The beneficial effects of the present invention are:

[0013] 1. The device adds a preheating furnace in the middle of the tempering process, which reduces the tempering time of the barrel in the tempering furnace and improves work efficiency;

[0014] 2. The push-turn mechanism makes the barrel rotate at a uniform speed in the tempering furnace, which has a better tempering effect on the barrel, and the cemented carbide powder is evenly bonded with high bonding strength. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a front view of a barrel tempering device of the present invention;

[0016] Figure 2 A top view of a barrel tempering device of the present invention;

[0017] Figure 3 It is an enlarged view of the front pushing mechanism 1;

[0018] Figure 4 for Figure 1 Middle AA section view;

[0019] Figure 5 for Figure 1 Enlarged view of the B area;

[0020] Figure 6 for Figure 5 Side view of

[0021] Figure 7 It is a central cross-sectional view of the barrel 8.

[0022] In the figure: 1, front push mechanism; 11, front rack track; 12, front track car; 13, connecting plate; 14, power motor; 15, push rod; 151, top head; 2, barrel rack; 21, door bracket; 22, inclined bracket; 23, round steel; 24, rolling mechanism; 241, ball bowl; 242, rolling ball; 3, preheating furnace; 4, push and turn mechanism; 41, rear rack track; 42, gear; 43, internal fixing frame; 431, through hole; 44, top cylinder; 441, Lower connecting mechanism; 442, upper connecting mechanism; 45, outer workbench; 46, vertical plate; 47, rotating shaft positioning plate; 48, rotating mechanism; 481, rotating shaft; 482, three claws; 483, chain; 484, sprocket; 485, gear box; 486, rotating motor; 5, conveying mechanism; 51, I-beam; 52, special-shaped shaft; 521, positioning groove; 53, bearing seat; 54, bearing; 6, tempering furnace; 7, workbench; 8, barrel; 81, end cover. DETAILED DESCRIPTION

[0023] like Figure 1-5As shown, a bimetallic barrel and a quenching and tempering device described in the present invention, a bimetallic barrel includes a barrel body and a cemented carbide powder bonded to the inner hole of the barrel. A quenching and tempering device includes a workbench 7, on which are arranged from left to right a front pushing mechanism 1, a barrel rack 2, a preheating furnace 3, a pushing and turning mechanism 4, a conveying mechanism 5, and a quenching and tempering furnace 6; the front pushing mechanism 1 includes a front rack track 11, a front rail car 12 installed on the front rack track 11, the front rail car 12 is connected to a pushing rod 15 through a connecting plate 13, a head 151 is installed at the front end of the pushing rod 15, the pushing rod 15 pushes the barrel 8 into the preheating furnace 3, and a power motor 14 is installed on the front rail car 12 for the movement of the front rail car 12. The barrel rack 2 includes an inclined bracket 22 mounted on a door-shaped bracket 21. The inclined bracket 22 is welded with a round steel bar 23 fixed near the bottom for placing a small diameter barrel 8. A rolling mechanism 24 is installed on the upper part of the inclined bracket 22 for placing a large diameter barrel 8. The rolling mechanism 24 includes a ball bowl 241 mounted on the inclined bracket 22, and a rolling ball 242 is installed in the ball bowl 241. The push-turn mechanism 4 includes a rear rack track 41, and the rear rack track 41 is connected to an inner fixing frame 43 through a gear 42. A through hole 431 is provided on the upper part of the inner fixing frame 43, and a vertical plate 46 is installed in the through hole 431. Both sides of the inner fixing frame 43 are movably connected to an outer workbench 45 through a top cylinder 44. The lower part of the top cylinder 44 is connected to the inner fixing frame 43 through a lower connecting mechanism 441, and the upper part of the top cylinder 44 is connected to the outer workbench 45 through an upper connecting mechanism 442. The outer workbench 45 is fixedly connected to a vertical plate 46 below, and the vertical plate 46 fixes a rotating shaft 481 through a rotating shaft positioning plate 47. A rotating mechanism 48 is installed on the outer workbench 45, and the rotating mechanism 48 includes a gear box 485 installed on the upper part of the outer workbench 45, one end of the gear box 485 is connected to a rotating motor 486, and a sprocket 484 is installed on the other end of the gear box 485. The sprocket 484 drives the rotating shaft 481 to rotate through a chain 483, and a three-claw 482 is installed on the other end of the rotating shaft 481. The conveying mechanism 5 includes an I-beam 51 installed on the workbench 7, and a bearing 54 is installed on the I-beam 51 through a bearing seat 53. The bearing 54 is used to fix the special-shaped shaft 52, and a positioning groove 521 is processed in the middle of the special-shaped shaft 52, and a barrel 8 is placed at the positioning groove 521.

[0024] The device adds a preheating furnace in the middle of the tempering process, which reduces the tempering time of the barrel in the tempering furnace and improves work efficiency; the push-turn mechanism is used to make the barrel rotate at a uniform speed in the tempering furnace, the tempering effect of the barrel is better, the cemented carbide powder is evenly bonded, and the bonding strength is large.

[0025] In order to facilitate the understanding of the present invention, the following description is given in conjunction with the accompanying drawings:

[0026] First, the tempering of the barrel is briefly introduced. The cemented carbide powder is placed in the barrel, both ends are sealed, and the barrel is heated so that the cemented carbide powder melts and adheres to the surface of the inner hole of the barrel.

[0027] During operation, a barrel filled with carbide powder is placed on a barrel rack, and the front end of the push rod pushes the barrel into the preheating furnace for preheating. After a period of time, the rear barrel is pushed into the preheating furnace by the push head again for preheating. The preheated barrel in the preheating furnace is ejected out of the preheating furnace and reaches the conveying mechanism (at this time, the top cylinder of the rotating mechanism works to lift the outer worktable to a certain height, and the space between the rotating shaft and the special-shaped shaft becomes larger). The barrel is placed in the positioning groove of the special-shaped shaft, the top cylinder of the rotating mechanism is reset, and the position of the rotating shaft is moved down. The rotating mechanism moves on the rear rack track through an external force (not shown in the figure) until the three claws clamp the barrel, and the rotating mechanism continues to move to the right until the barrel enters the tempering furnace. The rotating motor drives the barrel to rotate slowly through the three claws for tempering treatment until the tempering is completed, and the barrel is removed from the tempering furnace through the rear mechanism.

[0028] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A bimetallic barrel, characterized in that: It includes a barrel body and hard alloy powder bonded to the inner hole of the barrel.

2. A bimetallic barrel and a tempering device, characterized in that: The workbench (7) comprises a front pushing mechanism (1), a barrel frame (2), a preheating furnace (3), a pushing and turning mechanism (4), a conveying mechanism (5), and a tempering furnace (6) arranged on the workbench (7) from left to right; The front pushing mechanism (1) comprises a front rack track (11), a front rail car (12) mounted on the front rack track (11), the front rail car (12) being connected to a pushing rod (15) via a connecting plate (13), and a power motor (14) being mounted on the front rail car (12) for moving the front rail car (12); The barrel rack (2) comprises an inclined bracket (22) mounted on a gate-shaped bracket (21), a round steel (23) is fixedly welded near the bottom of the inclined bracket (22) for placing a barrel (8) with a small diameter, and a rolling mechanism (24) is installed on the upper part of the inclined bracket (22) for placing a barrel (8) with a large diameter; The pushing and turning mechanism (4) comprises a rear rack rail (41), the rear rack rail (41) is connected to an inner fixing frame (43) via a gear (42), both sides of the inner fixing frame (43) are movably connected to an outer working table (45) via a top cylinder (44), a vertical plate (46) is fixedly connected to the bottom of the outer working table (45), the vertical plate (46) is fixed to a rotating shaft (481) via a rotating shaft positioning plate (47), and a rotating mechanism (48) is installed on the outer working table (45); The conveying mechanism (5) comprises an I-beam (51) mounted on the workbench (7), a bearing (54) being mounted on the I-beam (51) via a bearing seat (53), and the bearing (54) being used to fix the special-shaped shaft (52).

3. A bimetallic barrel and tempering device according to claim 2, characterized in that: A header (151) is installed at the front end of the push rod (15), and the push rod (15) pushes the barrel (8) into the preheating furnace (3).

4. A bimetallic barrel and tempering device according to claim 2, characterized in that: The rolling mechanism (24) comprises a ball bowl (241) mounted on an inclined bracket (22), and a rolling ball (242) is mounted in the ball bowl (241).

5. A bimetallic barrel and tempering device according to claim 2, characterized in that: A through hole (431) is provided on the upper portion of the inner fixing frame (43), and the vertical plate (46) is installed in the through hole (431).

6. A bimetallic barrel and tempering device according to claim 2, characterized in that: The lower part of the top cylinder (44) is connected to the inner fixing frame (43) through a lower connecting mechanism (441), and the upper part of the top cylinder (44) is connected to the outer working table (45) through an upper connecting mechanism (442).

7. A bimetallic barrel and tempering device according to claim 2, characterized in that: The rotating mechanism (48) includes a gear box (485) installed on the upper part of the outer workbench (45), one end of the gear box (485) is connected to the rotating motor (486), and the other end of the gear box (485) is installed with a sprocket (484), and the sprocket (484) drives the rotating shaft (481) to rotate through a chain (483), and the other end of the rotating shaft (481) is installed with a three-claw (482).

8. A bimetallic barrel and tempering device according to claim 2, characterized in that: A positioning groove (521) is processed in the middle of the special-shaped shaft (52), and a barrel (8) is placed in the positioning groove (521).

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