Automatic cut-off mechanism for overflow of injection molded part

Abstract

The automatic cut-off mechanism comprises an injection molding barrel, a feeding hopper is arranged at the upper end of the injection molding barrel, a discharging opening connected with the injection molding barrel is fixedly formed in the bottom end of the feeding hopper, four supporting rods are fixedly arranged on the inner side of the feeding hopper, the same fixing disc is fixedly arranged among the four supporting rods, and a motor is fixedly arranged on the fixing disc. A rotating shaft is fixedly arranged at the output end of the motor, a rectangular groove is formed in the bottom end of the rotating shaft, a spring is fixedly arranged at the position, located in the rectangular groove, of the rotating shaft, a rectangular column is fixedly arranged at the bottom end of the spring, the bottom end of the rectangular column extends out of the rectangular groove and is fixedly provided with a fulcrum shaft, and the bottom end of the fulcrum shaft extends into the discharging opening and is fixedly provided with a spiral piece. A supporting column is rotationally arranged on the inner side wall of the feeding hopper and fixedly provided with a triangular prism. The motor drives the rotating shaft to rotate, the rotating shaft drives the rectangular column to rotate through the rectangular groove, and the rectangular column drives the spiral piece to rotate, so that material blockage in the discharging opening is reduced, and discharging is convenient.

Description

TECHNICAL FIELD

[0001] The utility model belongs to injection molding device technical field especially, relate to an injection molding overflow automatic cutting mechanism. BACKGROUND

[0002] Mold, industrial production is used to injection molding, blow molding, extrusion, die casting or forging pressure forming, smelting, stamping and other methods to get the desired products of various molds and tools, in short, mold is used to make the tool of molding article, this kind of tool is composed of various parts, different molds are composed of different parts, it realizes the processing of article shape mainly through the change of the physical state of the molding material, has the title of " the mother of industry ".

[0003] For example, the Chinese patent (announcement number: CN206140800U) discloses an injection molding device, the injection molding device, the device novel design, adopts hydraulic drive, powerful, feedback speed is fast, and can effectively reduce the noise generated by asynchronous motor drive, low production cost, suitable for mass production, has better market prospect.

[0004] The above injection molding device still has certain deficiency, the raw material is sent to the preheating cylinder through the feeding device, since the lower end outlet of the heating device is small, the raw material poured into the heating device enters the preheating cylinder through the outlet, which easily leads to the blockage of the raw material, affects the movement of the raw material, causes the uneven discharge of the raw material in the injection molding process, and affects the molding of the workpiece. Utility model content

[0005] In view of the problem that since the lower end outlet of the heating device is small, the raw material poured into the heating device enters the preheating cylinder through the outlet, which easily leads to the blockage of the raw material, affects the movement of the raw material, causes the uneven discharge of the raw material in the injection molding process, and affects the molding of the workpiece, the utility model provides an injection molding overflow automatic cutting mechanism.

[0006] In order to achieve the above object, the utility model discloses the following technical scheme: a kind of overflow automatic cutting mechanism of injection molding part, including injection cylinder, the upper end of the injection cylinder is provided with feed hopper, the bottom end of the feed hopper is fixedly provided with the blanking outlet being connected with injection cylinder, the inboard of the feed hopper is fixedly provided with four support rods, one and the same fixed disc is fixedly provided between four support rods, the fixed disc is fixedly provided with motor, the output of the motor is fixedly provided with rotating shaft, the rotating shaft penetrates fixed disc, the bottom end of the rotating shaft is provided with rectangular groove, the rotating shaft is fixedly provided with spring in rectangular groove, the bottom end of the spring is fixedly provided with rectangular column, the rectangular column bottom end extends out of rectangular groove and is fixedly provided with support shaft, the support shaft bottom end extends into blanking outlet and is fixedly provided with helical blade, the inboard wall of the feed hopper is rotatably provided with support post, the support post is fixedly provided with three prism, the support shaft upper end is fixedly provided with fixed ring being in abutment with three prism, the rotating shaft is provided with transmission assembly that drives support post rotation.

[0007] Preferably, the bottom of the injection cylinder is fixedly provided with a support, and the bottom of the support is fixedly provided with a base.

[0008] Preferably, the transmission assembly includes a first bevel gear and a second bevel gear, the first bevel gear is fixedly provided on the rotating shaft, the second bevel gear is fixedly provided on the support post, and the first bevel gear and the second bevel gear are meshingly connected.

[0009] Preferably, a plurality of stirring blades are fixedly provided on the support shaft.

[0010] Preferably, a through hole is formed in the upper end of the injection cylinder and communicates with the blanking outlet.

[0011] Preferably, a fixed rod is fixedly provided on the inboard wall of the feed hopper, one end of the fixed rod is fixedly provided with a sleeve, and the sleeve is slidably sleeved on the outside of the support shaft.

[0012] Compared with the prior art, the utility model has the beneficial effects that:

[0013] 1. The rotating shaft is driven to rotate by the motor, the rectangular column is driven to rotate by the rotating shaft through the rectangular groove, the helical blade is driven to rotate by the support shaft, the material in the blanking outlet is fed by the rotation of the helical blade, thereby reducing the blockage of the material in the blanking outlet and facilitating the discharging.

[0014] 2. The rotating shaft drives the first bevel gear to rotate, the first bevel gear drives the second bevel gear to rotate, the second bevel gear drives the support post to rotate, the support post drives the three prism to rotate, the three prism intermittently presses the fixed ring, and the support shaft and the helical blade move up and down under the action of the restoring force of the spring, thereby further improving the discharging efficiency of the blanking outlet. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1The utility model discloses a whole structure schematic diagram.

[0016] Figure 2 The utility model discloses a feeding hopper sectional structure schematic diagram.

[0017] Figure 3 The utility model discloses Figure 2 The utility model discloses a structure schematic diagram of the enlarged A place in the middle.

[0018] In the drawing: 1, injection molding cylinder, 2, feeding hopper, 3, discharge port, 4, support rod, 5, fixed disc, 6, motor, 7, rotating shaft, 8, rectangular groove, 9, spring, 10, rectangular column, 11, support shaft, 12, helical blade, 13, support column, 14, triangular prism, 15, fixed ring, 16, support, 17, base, 18, first bevel gear, 19, second bevel gear, 20, stirring blade, 21, fixed rod, 22, sleeve. Specific implementation

[0019] The technical scheme in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments.

[0020] Refer to Figures 1-3 A kind of injection molding overflow automatic cutting mechanism, including injection molding cylinder 1, the bottom of injection molding cylinder 1 is fixedly provided with support 16, support 16 bottom is fixedly provided with base 17. Injection molding cylinder 1 upper end is provided with feeding hopper 2, the bottom of feeding hopper 2 is fixedly provided with with injection molding cylinder 1 connection's discharge port 3, and the through hole that injection molding cylinder 1 upper end is opened has the communication discharge port 3.

[0021] Specifically, raw materials are poured into feeding hopper 2, raw materials are heated and melted in feeding hopper 2, and then injected into injection molding cylinder 1 through discharge port 3 for injection molding.

[0022] Further, four support rods 4 are fixedly arranged in the inside of feeding hopper 2, the same fixed disc 5 is fixedly arranged between the four support rods 4, motor 6 is fixedly arranged on fixed disc 5, the output end of motor 6 is fixedly provided with rotating shaft 7, rotating shaft 7 penetrates fixed disc 5, rectangular groove 8 is opened at the bottom end of rotating shaft 7, spring 9 is fixedly arranged in rectangular groove 8 of rotating shaft 7, rectangular column 10 is fixedly arranged at the bottom end of spring 9, rectangular column 10 extends out of rectangular groove 8 and is fixedly provided with support shaft 11, and support shaft 11 extends into discharge port 3 and is fixedly provided with helical blade 12.

[0023] Specific, by motor 6 drive shaft 7 rotation, shaft 7 through the rectangular groove 8 drive rectangular column 10 rotation, rectangular column 10 drive support shaft 11 rotation, support shaft 11 drive helical blade 12 rotation, through the helical blade 12 rotation to the material in the discharge port 3 feeding, and then reduce the material in the discharge port 3 blockage, facilitate the discharge.

[0024] In addition, the inside wall of the feed hopper 2 is rotatably provided with a support column 13, the support column 13 is fixedly provided with a triangular prism 14, the upper end of the support shaft 11 is fixedly provided with a fixed ring 15 abutting against the triangular prism 14, and the rotating shaft 7 is provided with a transmission assembly for driving the support column 13 to rotate.

[0025] Specific, the rotating shaft 7 drives the first bevel gear 18 to rotate, the first bevel gear 18 drives the second bevel gear 19 to rotate, the second bevel gear 19 drives the support column 13 to rotate, the support column 13 drives the triangular prism 14 to rotate, the triangular prism 14 intermittently extrudes the fixed ring 15, the fixed ring 15 drives the support shaft 11 and the helical blade 12 to move downward, and the support shaft 11 and the helical blade 12 are driven to move upward by the restoring force of the spring 9, thereby further improving the discharging efficiency of the material in the discharge port 3.

[0026] In addition, a plurality of stirring blades 20 are fixedly arranged on the support shaft 11, and the plurality of stirring blades 20 are driven to rotate by the support shaft 11.

[0027] Finally, the inside wall of the feed hopper 2 is fixedly provided with a fixed rod 21, one end of the fixed rod 21 is fixedly provided with a sleeve 22, and the sleeve 22 is slidably arranged on the outer side of the support shaft 11, so as to support and limit the support shaft 11.

[0028] The operation principle of the utility model is described as follows: raw materials are poured into the feed hopper 2, the raw materials are heated and melted in the feed hopper 2, and then injected into the injection cylinder 1 through the discharge port 3 for injection molding, the rotating shaft 7 is driven to rotate by the motor 6, the rectangular column 10 is driven to rotate by the rectangular groove 8, the helical blade 12 is driven to rotate by the support shaft 11, the material in the discharge port 3 is fed by the helical blade 12, thereby reducing the blockage of the material in the discharge port 3 and facilitating the discharging;

[0029] The rotating shaft 7 drives the first bevel gear 18 to rotate, the first bevel gear 18 drives the second bevel gear 19 to rotate, the second bevel gear 19 drives the support column 13 to rotate, the support column 13 drives the triangular prism 14 to rotate, the triangular prism 14 intermittently extrudes the fixed ring 15, the fixed ring 15 drives the support shaft 11 and the helical blade 12 to move downward, and the support shaft 11 and the helical blade 12 are driven to move upward by the restoring force of the spring 9, thereby further improving the discharging efficiency of the material in the discharge port 3.

[0030] The above merely describes a preferred embodiment of the present application, but the scope of protection of the present application is not limited thereto. Any skilled person in the art, according to the technical scheme and the inventive concept of the present application, can make equivalent substitutions or changes within the technical range disclosed by the present application, which should be covered within the scope of protection of the present application.

Claims

1. An automatic sprue cutting mechanism for injection molded parts, comprising an injection cylinder (1), characterized in that, The upper end of the injection cylinder (1) is provided with a feeding hopper (2), the bottom end of the feeding hopper (2) is fixedly provided with a discharge port (3) connected with the injection cylinder (1), the inner side of the feeding hopper (2) is fixedly provided with four supporting rods (4), the same fixed disc (5) is fixedly arranged between the four supporting rods (4), the fixed disc (5) is fixedly provided with a motor (6), the output end of the motor (6) is fixedly provided with a rotating shaft (7), the rotating shaft (7) penetrates through the fixed disc (5), the bottom end of the rotating shaft (7) is provided with a rectangular groove (8), the rotating shaft (7) is fixedly provided with a spring (9) in the rectangular groove (8), the bottom end of the spring (9) is fixedly provided with a rectangular column (10), the bottom end of the rectangular column (10) extends out of the rectangular groove (8) and is fixedly provided with a supporting shaft (11), the bottom end of the supporting shaft (11) extends into the discharge port (3) and is fixedly provided with a helical blade (12), the inner side wall of the feeding hopper (2) is rotatably provided with a supporting column (13), the supporting column (13) is fixedly provided with a triangular prism (14), the upper end of the supporting shaft (11) is fixedly provided with a fixed ring (15) abutting the triangular prism (14), and the rotating shaft (7) is provided with a transmission assembly driving the supporting column (13) to rotate.

2. The automatic sprue cut-off mechanism according to claim 1, wherein The bottom of the injection cylinder (1) is fixedly provided with a support (16), and the bottom of the support (16) is fixedly provided with a base (17).

3. The automatic sprue cut-off mechanism according to claim 1, wherein The transmission assembly comprises a first bevel gear (18) and a second bevel gear (19), the first bevel gear (18) is fixedly arranged on the rotating shaft (7), the second bevel gear (19) is fixedly arranged on the supporting column (13), and the first bevel gear (18) and the second bevel gear (19) are meshingly connected.

4. The automatic sprue cut-off mechanism according to claim 1, wherein A plurality of stirring blades (20) are fixedly arranged on the supporting shaft (11).

5. The automatic sprue cut-off mechanism according to claim 1, wherein The upper end of the injection cylinder (1) is provided with a through hole communicating with the discharge port (3).

6. The automatic sprue cut-off mechanism according to claim 1, wherein The inner side wall of the feeding hopper (2) is fixedly provided with a fixed rod (21), one end of the fixed rod (21) is fixedly provided with a sleeve (22), and the sleeve (22) is slidably sleeved on the outer side of the supporting shaft (11).

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