Centrifugal casting device

Abstract

The utility model discloses a centrifugal casting device, and particularly relates to the technical field of centrifugal casting, which comprises a central shaft, a rotating arm is arranged at the top end of the central shaft, a clockwork spring is arranged at the outer end of the central shaft, an outer connecting pipe is sleeved at the outer end of the central shaft, and two outer inserting holes are arranged on the outer connecting pipe. An inner inserting hole penetrating through the center shaft is formed in the center shaft, a pulling-out assembly is arranged on the rear side of the center shaft, the pulling-out assembly comprises a sliding barrel, and a spring is fixedly arranged on the inner wall of the sliding barrel. According to the utility model, the central shaft is fixed by clamping the plug pin on the external pipe and the central shaft, and when the fixation is released, the pull rope and the plug pin are pulled backwards by virtue of the elastic force of the spring, and the plug pin is quickly pulled out from the outer jack and the inner jack, so that the constraint on the central shaft is quickly released; according to the mode of pulling out the plug pin, the hand of an operator can be far away from the rotating arm which is about to rotate, so that the safety is greatly improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to centrifugal casting technical field, concretely relates to a centrifugal casting device. BACKGROUND

[0002] Centrifugal casting is a kind of special casting method, liquid metal is poured into rotating mold, and it is filled in mold under the action of centrifugal force, and centrifugal casting process is widely used in automobile industry, aerospace industry and medical apparatus and instruments and each field.

[0003] Among them, in the field of medical apparatus and instruments, centrifugal casting process is often used for repairing dental crown and dental bridge, its principle is to use centrifugal force to uniformly coat liquid metal on the mold of dental crown or dental bridge, and the required restoration is formed after rapid cooling and solidification, such as the prior art disclosed in a dental centrifugal casting device with CN205459160U.

[0004] The dental centrifugal casting device in prior art needs to tighten the clockwork before casting, and uses the pin to fix the horizontal rod, and after pulling out the pin upward, the horizontal rod will rotate without restraint, but the hand is too close to the horizontal rod when manually pulling out the pin, and the rotating horizontal rod will hit the hand, and thus danger is caused. UTILITY MODEL CONTENTS

[0005] The utility model aims at providing a centrifugal casting device, which pulls back the pulling rope and the plug-in pin by the elastic force of spring, quickly pulls out the plug-in pin from the outer insertion hole and the inner insertion hole, and quickly releases the restraint on the central shaft, so that the hand of the operator is far away from the rotating arm, and the safety is greatly improved.

[0006] In order to realize the above-mentioned purpose, the utility model provides the following technical scheme: a centrifugal casting device, comprising a central shaft, the top end of the central shaft is provided with a rotating arm, the outer end of the central shaft is provided with a clockwork spring, the outer end of the central shaft is provided with an outer connecting pipe, two outer insertion holes are formed in the outer connecting pipe, and an inner insertion hole penetrating through the central shaft is formed in the central shaft.

[0007] The rear side of the central shaft is provided with a pulling-out assembly, the pulling-out assembly comprises a sliding cylinder, a spring is fixedly arranged on the inner wall of the sliding cylinder, the front end of the spring is fixedly provided with a sliding block, and the sliding block can slide back and forth in the sliding cylinder.

[0008] The front end of the sliding block is fixedly provided with a pulling rope, the front end of the pulling rope is fixedly provided with a plug-in pin, when the two ends of the inner insertion hole are coincided with the two outer insertion holes respectively, the plug-in pin penetrates through the outer connecting pipe and the central shaft through the inner insertion hole and the outer insertion hole, so as to fix the central shaft and make it unable to rotate.

[0009] Further, the sliding groove is arranged on one side of the sliding cylinder, and a handle is fixedly arranged on the outer end of the sliding block, and the handle extends to the outside of the sliding cylinder through the sliding groove, and the sliding block can be driven to move in the sliding cylinder through the handle.

[0010] Further, the bottom end of the central shaft is provided with a base, the bottom end of the central shaft is rotationally connected with the base, the top end of the base is provided with a detachable shell, and the outer connecting pipe is fixedly arranged at the top end of the shell.

[0011] The lower half of the central shaft is located in the shell, a clock spring is arranged in the shell, the clock spring is arranged at the outer end of the central shaft, and the two ends of the clock spring are fixedly connected with the central shaft and the base, respectively.

[0012] Further, the top end of the central shaft is provided with a detachable rotating arm, one end of the rotating arm is hingedly connected with a secondary arm, the end of the rotating arm away from the secondary arm is fixedly provided with a roller, and the end of the secondary arm away from the rotating arm is also fixedly provided with a roller.

[0013] Further, the top end of the secondary arm is fixedly provided with a support frame, and the support frame is placed with an embedding ring, and the opening of the embedding ring faces the rotating arm.

[0014] Further, the outer end of the secondary arm is sleeved with a sliding seat, the outer end of the sliding seat is provided with a fastening bolt through screw threads, and the top end of the sliding seat is provided with a filling assembly.

[0015] The filling assembly comprises a pouring bucket, the top end of the pouring bucket is provided with a filling opening, one end of the pouring bucket facing the embedding ring is fixedly provided with a plug pipe, and the outer end of the plug pipe is fixedly provided with a closing pressure plate, and the diameter of the closing pressure plate is greater than the diameter of the opening of the embedding ring.

[0016] In the above technical scheme, the technical effects and advantages of the present application are provided:

[0017] 1. The plug-in pin is clamped on the outer connecting pipe and the central shaft to fix the central shaft, when the fixation is released, the spring force is used to pull the tension rope and the plug-in pin backward, and the plug-in pin is quickly pulled out of the outer insertion hole and the inner insertion hole, so that the restraint on the central shaft is quickly released, and the plug-in pin is pulled out in this way, so that the operator's hands are away from the rotating arm that is about to rotate, and therefore the safety is greatly improved.

[0018] 2. The rollers are arranged on the rotating arm and the secondary arm, if an object accidentally approaches the rotating arm and the secondary arm and contacts the rollers during the rotation, the rollers will rotate, the sliding friction is converted into rolling friction through the rollers, so that the harm to the person or the object is reduced, and the safety of the rotating arm and the secondary arm is improved. BRIEF DESCRIPTION OF DRAWINGS

[0019] In order to more clearly illustrate the technical scheme in the embodiments of the present application or the prior art, the drawings needed to be used in the embodiments will be briefly introduced as follows. Obviously, the drawings in the following description are only some embodiments described in the present application, and other drawings can also be obtained by those skilled in the art according to these drawings.

[0020] Figure 1 It is an overall structural diagram of the present application.

[0021] Figure 2 It is an exploded view of the shell of the present application.

[0022] Figure 3 It is a two-stage arm structural diagram of the present application.

[0023] Figure 4 It is an internal structure diagram of the filling assembly of the present application.

[0024] Figure 5 It is a pulling assembly structure diagram of the present application.

[0025] Explanation of reference signs:

[0026] 1, shell; 2, rotating arm; 3, pulling assembly; 301, sliding cylinder; 302, sliding block; 303, spring; 304, handle; 305, sliding groove; 306, tension rope; 307, plug-in pin; 4, counterweight; 5, roller; 6, embedding ring; 7, two-stage arm; 8, filling assembly; 801, pouring bucket; 802, filling port; 803, insertion pipe; 804, sealing pressure plate; 9, sliding seat; 10, external connection pipe; 11, external insertion hole; 12, central shaft; 13, internal insertion hole; 14, clockwork spring; 15, base. DETAILED DESCRIPTION

[0027] In order to make those skilled in the art better understand the technical scheme of the present application, the present application will be further described in detail with reference to the drawings.

[0028] The present application provides a centrifugal casting device as shown in Figures 1-5 The present application provides a centrifugal casting device as shown in

[0029] The bottom end of the central shaft 12 is provided with a base 15, and the bottom end of the central shaft 12 is rotatably connected with the base 15. The top end of the base 15 is provided with a detachable shell 1, and the external connection pipe 10 is fixedly arranged at the top end of the shell 1.

[0030] The lower half of the center shaft 12 is located in the shell 1, which is internally provided with a spring 14, which is arranged at the outer end of the center shaft 12, and the two ends of the spring 14 are fixedly connected with the center shaft 12 and the base 15 respectively.

[0031] Before use, the base 15 needs to be fixed so that it cannot rotate, then the rotating arm 2 is pulled to make the rotating arm 2 rotate, which drives the center shaft 12 to rotate and makes the spring 14 tighten, then the center shaft 12 is temporarily restrained so that it cannot rotate, after casting the heated and melted metal, the restraint on the center shaft 12 is released, and under the driving force of the spring 14, the center shaft 12 reversely rotates and drives the rotating arm 2 and the secondary arm 7 to rotate, thereby playing a centrifugal casting role.

[0032] The restraint on the center shaft 12 needs to be released under the premise of ensuring safety, for example, Figure 1 、 2 , 5, the rear side of the center shaft 12 is provided with a pulling assembly 3, the pulling assembly 3 includes a sliding cylinder 301, the inner wall of the sliding cylinder 301 is fixedly provided with a spring 303, the front end of the spring 303 is fixedly provided with a sliding block 302, and the sliding block 302 can slide forward and backward in the sliding cylinder 301;

[0033] The front end of the sliding block 302 is fixedly provided with a tension rope 306, the front end of the tension rope 306 is fixedly provided with a plug-in pin 307, when the two ends of the inner plug hole 13 coincide with the two outer plug holes 11 respectively, the plug-in pin 307 penetrates the outer connecting pipe 10 and the center shaft 12 through the inner plug hole 13 and the outer plug hole 11, so as to fix the center shaft 12 so that it cannot rotate.

[0034] One side of the sliding cylinder 301 is provided with a sliding groove 305, the outer end of the sliding block 302 is fixedly provided with a handle 304, the handle 304 extends to the outside of the sliding cylinder 301 through the sliding groove 305, and the handle 304 can drive the sliding block 302 to move in the sliding cylinder 301.

[0035] When the center shaft 12 is bound, the two ends of the inner insertion hole 13 communicate with the two outer insertion holes 11 respectively, and the insertion pin 307 is inserted therefrom, the center shaft 12 is clamped in the outer connecting pipe 10 through the insertion pin 307, so as to fix the center shaft 12, when the binding needs to be released, the handle 304 is pushed to move the sliding block 302 forward to the frontmost position in the sliding cylinder 301, and the spring 303 is elongated, then the sliding cylinder 301 is moved backward, so that the sliding cylinder 301 is away from the rotating arm 2, at the same time, the tension rope 306 is naturally stretched, then the handle 304 is released, the elastic force of the spring 303 is released and pulls the sliding block 302 to move backward quickly, the sliding block 302 pulls the tension rope 306 and the insertion pin 307 backward, so as to quickly pull out the insertion pin 307 from the outer insertion hole 11 and the inner insertion hole 13, thereby quickly releasing the binding of the center shaft 12, since the insertion pin 307 is pulled out horizontally and the pulling out mode of the insertion pin 307 can make the operator's hands away from the rotating rotating arm 2, so the safety is greatly improved.

[0036] In order to further improve the safety of the rotating arm 2, as shown in Figure 1 、 3 , the top end of the center shaft 12 is provided with a detachable rotating arm 2, one end of the rotating arm 2 is hinged with a secondary arm 7, the end away from the secondary arm 7 of the rotating arm 2 is fixedly provided with a roller 5, the end away from the rotating arm 2 of the secondary arm 7 is also fixedly provided with a roller 5, and the rotating arm 2 is provided with a plurality of counterweights 4 at one end, which can improve the stability of rotation.

[0037] The rollers 5 are arranged on the rotating arm 2 and the secondary arm 7, and the rollers 5 will rotate with the rotation of the rotating arm 2 and the secondary arm 7, if a person or an object approaches from the horizontal direction during the rotation of the rotating arm 2 and the secondary arm 7, the roller 5 will first contact the object, and the roller 5 will rotate at the time of contact, and the sliding friction is converted into rolling friction through the roller 5, so as to reduce the harm to the person or the object, and the safety of the rotating arm 2 and the secondary arm 7 is improved.

[0038] The molten metal is poured under the action of centrifugal force, as shown in Figure 1 、 3 , 4, the top end of the secondary arm 7 is fixedly provided with a support frame, the support frame is placed with an embedding ring 6 at the top end, and the opening of the embedding ring 6 faces the rotating arm 2.

[0039] The outer end of the secondary arm 7 is sleeved with a sliding seat 9, the outer end of the sliding seat 9 is provided with a fastening bolt through threads, and the top end of the sliding seat 9 is installed with a filling assembly 8;

[0040] The filling assembly 8 comprises a pouring cup 801, the pouring cup 801 is provided with a filling opening 802 at the top end, the pouring cup 801 is fixedly provided with a spout 803 at one end towards the embedding ring 6, the spout 803 is fixedly provided with a closing pressure plate 804 at the outer end, the diameter of the closing pressure plate 804 is larger than the diameter of the opening of the embedding ring 6.

[0041] The opening of the embedding ring 6 is placed towards the rotating arm 2 and is placed on the support frame, then the slide seat 9 is slid and the filling assembly 8 is driven to approach the embedding ring 6, so that the spout 803 slightly penetrates into the embedding ring 6 through the opening of the embedding ring 6, and the closing pressure plate 804 is pressed on the embedding ring 6, the opening of the embedding ring 6 is closed and the embedding ring 6 is also tightly fixed on the support frame, then the fastening bolt is tightened to fix the position of the filling assembly 8, before the rotating arm 2 and the secondary arm 7 start to rotate, the molten liquid metal is poured into the pouring cup 801 through the filling opening 802, then the rotating arm 2 and the secondary arm 7 start to rotate, under the action of centrifugal force, the metal in the pouring cup 801 is thrown into the embedding ring 6 through the spout 803 and is filled into the embedding ring 6, so that the purpose of centrifugal casting is achieved.

[0042] The above only describes certain exemplary embodiments of the present application by way of illustration, without doubt, for ordinary skilled in the art, without departing from the spirit and scope of the present application, the described embodiments can be modified in various ways. Therefore, the above drawings and description are illustrative in nature and should not be understood as limiting the scope of protection of the present application.

Claims

1. A centrifugal casting device, comprising a central shaft (12), a rotating arm (2) at the top end of the central shaft (12), and a spring-loaded spring (14) at the outer end of the central shaft (12), characterized in that: The outer end of the central shaft (12) is fitted with an outer tube (10), and the outer tube (10) has two external insertion holes (11). The central shaft (12) has an inner insertion hole (13) that penetrates the central shaft (12). The central shaft (12) is provided with a removal assembly (3) on the rear side. The removal assembly (3) includes a slide cylinder (301). A spring (303) is fixedly provided on the inner wall of the slide cylinder (301). A slider (302) is fixedly provided at the front end of the spring (303). The slider (302) is fixedly provided with a tension rope (306) at the front end, and the tension rope (306) is fixedly provided with a plug pin (307) at the front end. When the two ends of the inner insertion hole (13) coincide with the two outer insertion holes (11) respectively, the plug pin (307) passes through the inner insertion hole (13) and the outer insertion hole (11) through the outer tube (10) and the central shaft (12).

2. The centrifugal casting apparatus according to claim 1, characterized in that: A groove (305) is provided on one side of the slide cylinder (301), and a handle (304) is fixedly provided at the outer end of the slider (302). The handle (304) extends to the outside of the slide cylinder (301) through the groove (305).

3. The centrifugal casting apparatus according to claim 1, characterized in that: The bottom end of the central shaft (12) is provided with a base (15), the bottom end of the central shaft (12) is rotatably connected to the base (15), the top end of the base (15) is provided with a detachable outer shell (1), and the outer tube (10) is fixedly provided on the top end of the outer shell (1); The lower half of the central shaft (12) is located in the outer shell (1). The outer shell (1) is provided with a spring (14), and the two ends of the spring (14) are fixedly connected to the central shaft (12) and the base (15) respectively.

4. The centrifugal casting apparatus according to claim 1, characterized in that: The top of the central shaft (12) is provided with a detachable rotating arm (2). One end of the rotating arm (2) is hinged to a secondary arm (7). A roller (5) is fixedly provided at the end of the rotating arm (2) away from the secondary arm (7). A roller (5) is also fixedly provided at the end of the secondary arm (7) away from the rotating arm (2). A plurality of counterweights (4) are provided at one end of the rotating arm (2).

5. A centrifugal casting apparatus according to claim 1, characterized in that: The secondary arm (7) is fixedly provided with a support frame at its top end, and an embedding ring (6) is placed at the top end of the support frame, with the opening of the embedding ring (6) facing the rotating arm (2).

6. A centrifugal casting apparatus according to claim 5, characterized in that: The secondary arm (7) is fitted with a slide (9) at its outer end, and the slide (9) is fitted with a fastening bolt by a thread at its outer end. The top of the slide (9) is fitted with a filling assembly (8). The filling assembly (8) includes a filling hopper (801), the top of the filling hopper (801) is provided with a filling port (802), the end of the filling hopper (801) facing the embedding ring (6) is fixedly provided with an insertion tube (803), and the outer end of the insertion tube (803) is fixedly provided with a sealing pressure plate (804).

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