A core shooter

Abstract

The present invention discloses a core shooter, which relates to the technical field of sand shooting, and includes a frame and a sand shooting cover slidably connected to the frame. The core shooter further includes: a turning table: which is rotatably connected to the frame; a transmission assembly: which is arranged on the frame, one end of which is connected to the turning table and the other end is connected to the sand shooting cover; when the sand mold is formed, during the process of moving the sand shooting cover upward, the transmission assembly is driven to move, so that the transmission assembly drives the turning table to rotate, thereby realizing discharging. The core shooter provided by the present invention, when the sand mold is formed, drives the turning table to rotate during the process of moving the sand shooting cover upward, so that the turning table rotates from a horizontal state to a vertical state, thereby realizing discharging of the sand mold on the female mold.

Description

Technical Field

[0001] The present invention relates to the technical field of sand shooting, and particularly to a core shooter. Background Art

[0002] A core shooter is a machine that uses compressed air to evenly shoot molding sand into a sand box for pre-compaction and then applies pressure for compaction. In the invention patent application with the publication (announcement) number: CN106363142A, the publication (announcement) date: February 1, 2017, and the name "Core Shooter", it includes a frame and also includes side molds; the frame has a top plate, a sand hopper is arranged on the top plate, an upper mold is fixedly installed below the top plate, and a sand shooting port is arranged on the upper mold; the outlet of the sand hopper is communicated with the sand shooting port; a valve is arranged at the outlet of the sand hopper; the side molds are installed on the frame through a telescopic device; the side molds are located below the upper mold; a support platform is arranged below the side molds; a sliding table is arranged on the support platform, and at least two lower molds are arranged on the sliding table; guide columns are arranged on both sides of the lower mold and are fixed on the sliding table, a fixed platform is arranged below the support platform, and lifting devices are arranged on the fixed platform directly below the upper film and outside the frame. The ejector rods of the lifting devices pass through the support platform; through holes matching the ejector rods are arranged on the sliding table below the lower mold; using this core shooter, loading is convenient, production efficiency can be improved, and production costs can be reduced.

[0003] In the prior art including the above patent, since the molding process uses air pressure, generally a core shooter will be provided with a sealing space formed between a spray hood and a concave mold. Therefore, the spray hood generally moves in the vertical direction of the frame. When the plastic molding is completed and the spray hood moves upward, at this time, it is necessary to use a manipulator or manually take out the sand mold from the concave mold. Although using a manipulator can achieve continuous unloading, it can only operate after the spray hood returns to its original position, resulting in an extended unloading period. Summary of the Invention

[0004] The purpose of the present invention is to provide a core shooter to solve the above deficiencies in the prior art.

[0005] To achieve the above purpose, the present invention provides the following technical solutions:

[0006] A core shooter includes a frame and a sand shooting hood slidably connected to the frame, and further includes: a flipping table: which is rotatably connected to the frame;

[0007] A transmission component: which is arranged on the frame, and one end of it is connected to the flipping table and the other end is connected to the sand shooting hood;

[0008] When the sand mold is formed and the sand shooting hood moves upward, the transmission component is driven to move, so that the transmission component drives the flipping table to rotate, thereby realizing unloading.

[0009] Preferably, it further includes a punch slidably connected to the frame, the punch being detachably connected to the mounting base, and the mounting base being detachably mounted on the tilting table.

[0010] Preferably, the transmission assembly includes a first driving unit and a second driving unit. The first driving unit is used to drive the mounting base to slide on the frame, and the second driving unit is used to drive the tilting table to rotate, so as to discharge the sand mold.

[0011] Preferably, the first driving unit includes a telescopic member, one end of the telescopic member being hinged to the mounting base, and the other end of the telescopic member being hinged to the sand shooting hood.

[0012] Preferably, when the punch on the mounting base moves to directly above the die cavity, the punch moves downward to perform secondary forming.

[0013] Preferably, the telescopic member includes a sleeve hinged at its end to the mounting base and a connecting rod hinged at its end to the sand shooting hood. The connecting rod is slidably connected to the sleeve, and an unlocking structure is provided between the connecting rod and the sleeve. When the sleeve rotates to a preset angle, the unlocking structure is unlocked, so that the telescopic member extends, causing the punch to move downward.

[0014] Preferably, the second driving unit includes a one-way structure coaxially and fixedly connected to the tilting table. The one-way structure is coupled to a first gear, and a second gear is meshed on the circumferential side of the first gear. The second gear is meshed with a rack, and the rack is fixedly connected to the mounting base.

[0015] Preferably, the unlocking structure includes a first abutting member slidably connected to the sleeve and a second abutting member slidably connected to the connecting rod.

[0016] Preferably, the first abutting member includes a convex abutting block slidably connected to the sleeve, and the convex abutting block is connected to the sleeve by a third spring.

[0017] Preferably, a connecting block is fixedly connected to the connecting rod. The second abutting member includes a second wedge block slidably connected to the connecting block, and the second wedge block is connected to the connecting block by a fourth spring.

[0018] In the above technical solution, for a core shooter provided by the present invention, when the sand mold is formed, during the process of moving the sand shooting hood upward, the tilting table is driven to rotate, so that the tilting table rotates from a horizontal state to a vertical state, thereby discharging the sand mold on the die cavity.

[0019] It should be understood that the foregoing general description and the following detailed description are merely exemplary and explanatory and are not intended to limit the present disclosure.

[0020] This application document provides an overview of various implementations or examples of the technologies described in this disclosure, and is not a full disclosure of the entire scope of the disclosed technologies or all features. Description of the Drawings

[0021] To more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings required to be used in the embodiments. Obviously, the drawings described below are only some embodiments recorded in the present invention. For those of ordinary skill in the art, other drawings can also be obtained based on these drawings.

[0022] Figures 1-3 Overall structural schematic diagram of the structural core shooter provided by the embodiment of the present invention;

[0023] Figure 4 Schematic diagram of the installation structure of the second support seat provided by the embodiment of the present invention;

[0024] Figure 5 Provided by the embodiment of the present invention Figure 4 Enlarged schematic diagram of the partial structure at A in

[0025] Figure 6 Schematic diagram of the installation structure of the torsion spring provided by the embodiment of the present invention;

[0026] Figure 7 Schematic diagram of the structure of the first wedge block provided by the embodiment of the present invention;

[0027] Figure 8 Exploded structural schematic diagram of the telescopic rod member provided by the embodiment of the present invention;

[0028] Figure 9 Schematic diagram of the installation structure of the second wedge block provided by the embodiment of the present invention;

[0029] Figure 10 Schematic diagram of the installation structure of the convex abutting block provided by the embodiment of the present invention;

[0030] Figure 11 Schematic diagram of the installation structure of the fifth spring provided by the embodiment of the present invention.

[0031] Explanation of the reference numerals in the drawings:

[0032] 1. Frame; 1.01 Connecting seat; 1.02 Transmission groove; 1.1 Sand hopper; 1.2 Sand shooting cover; 1.3 Tipping table; 1.30 Female die; 1.31 Connecting shaft; 1.310 Installation groove; 1.311 First wedge block; 1.312 First spring; 1.32 First gear; 1.33 Second gear; 1.4 Mounting seat; 1.40 Male die; 1.41 First support seat; 1.42 Second support seat; 1.421 Rack; 1.43 Second spring; 1.5 Telescopic member; 1.50 Sleeve; 1.501 Convex abutting block; 1.502 Limiting block; 1.503 Connecting groove; 1.504 First limiting groove; 1.505 Second limiting groove; 1.506 Third spring; 1.507 Fourth spring; 1.51 Connecting rod; 1.510 Connecting block; 1.511 Waist-shaped groove; 1.512 Connecting pin; 1.513 Second wedge block; 1.514 Fifth spring. Detailed implementation manners

[0033] To make the objectives, technical solutions and advantages of the embodiments of the present disclosure clearer, the technical solutions of the embodiments of the present disclosure will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present disclosure. Apparently, the described embodiments are some, but not all, of the embodiments of the present disclosure. All other embodiments obtained by those of ordinary skill in the art based on the described embodiments of the present disclosure without creative efforts shall fall within the scope of protection of the present disclosure.

[0034] Refer to Figures 1-11 As shown in the figure, the present invention provides a core shooter, including a frame 1 and a sand shooting cover 1.2 slidably connected to the frame 1, and further including: a tipping table 1.3: which is rotatably connected to the frame 1;

[0035] A transmission assembly: which is arranged on the frame 1, and one end thereof is connected to the tipping table 1.3, and the other end is connected to the sand shooting cover 1.2;

[0036] When the sand mold is formed, during the process of moving the sand shooting cover 1.2 upward, the transmission assembly is driven to move, so that the transmission assembly drives the tipping table 1.3 to rotate, thereby realizing discharging.

[0037] Specifically, as Figures 1-3As shown in the figure, a sand hopper 1.1 is fixedly connected to the frame 1. A sealing cover is rotatably connected to the sand hopper 1.1. The sealing cover and the sand hopper 1.1 are connected by a locking member. The sand hopper 1.1 is slidably connected to the sand shooting cover 1.2. The sand shooting cover 1.2 is slidably connected to the sand hopper 1.1. A sealed space can be formed between the sand shooting cover 1.2 and the female mold 1.30. The sand shooting cover 1.2 is connected to the frame 1 by a hydraulic rod or an electric push rod (not shown in the figure), so that the sand shooting cover 1.2 moves in the vertical direction of the frame 1. A turntable 1.3 is rotatably connected to the frame 1, and the turntable 1.3 is connected by plugging or clamping.

[0038] Transmission assembly: It is arranged on the frame 1. One end of the transmission assembly is connected to the sand shooting cover 1.2, and the other end of the transmission assembly is connected to the turntable 1.3. The transmission assembly converts the linear motion in the vertical direction into circular motion. In the prior art, the mechanisms that can convert the motion in the horizontal direction into circular motion include the first gear 1.32 and rack 1.421 transmission mechanism, the crank-rocker transmission mechanism or other mechanisms that can convert linear motion into circular motion.

[0039] In this embodiment, a pulley structure can be arranged at the corresponding position on the turntable 1.3, so as to realize the transportation of the formed sand mold to the next process for curing the sand mold.

[0040] During the use process, when the sand mold is formed, at this time, the electric push rod or the hydraulic rod drives the sand shooting cover 1.2 to move upward. During the upward movement of the sand shooting cover 1.2, the transmission assembly is driven to move, so that the transmission assembly drives the turntable 1.3 to move, and the turntable 1.3 rotates from the horizontal direction to the vertical direction, so as to unload the sand mold on the female mold 1.30 clamped on the turntable 1.3.

[0041] Refer to Figures 4-11 As shown in the figure, in another embodiment provided by the present invention, it further includes: a male mold 1.40 slidably connected to the frame 1. The male mold 1.40 is detachably connected to the mounting seat 1.4, and the female mold 1.30 is detachably connected to the turntable 1.3.

[0042] Among them, the transmission assembly includes a first driving unit and a second driving unit. The first driving unit is used to drive the mounting seat 1.4 to slide on the frame 1, and the second driving unit is used to drive the turntable 1.3 to rotate, so as to unload the sand mold.

[0043] The first driving unit includes a telescopic member 1.5. One end of the telescopic member 1.5 is hinged to the mounting seat 1.4, and the other end of the telescopic member is hinged to the sand shooting cover 1.2.

[0044] When the punch 1.40 on the mounting base 1.4 moves directly above the die 1.30, the punch 1.40 moves downward, thereby performing secondary forming.

[0045] The telescopic member 1.5 includes a sleeve 1.50 whose end is hinged to the mounting base 1.4 and a connecting rod 1.51 whose end is hinged to the sand injection cover 1.2. The connecting rod 1.51 is slidably connected to the sleeve 1.50, and an unlocking structure is provided between the connecting rod 1.51 and the sleeve 1.50. When the sleeve 1.50 rotates to a preset angle, the unlocking structure is unlocked, thereby causing the telescopic member 1.5 to extend and the punch 1.40 to move downward.

[0046] The second driving unit includes a one-way structure coaxially and fixedly connected to the turntable 1.3. The one-way structure is coupled to the first gear 1.32. A second gear 1.33 is meshed on the circumferential side of the first gear 1.32, and the second gear 1.33 is meshed with a rack 1.421. The rack 1.421 is fixedly connected to the mounting base 1.4.

[0047] The unlocking structure includes a first abutting member slidably connected to the sleeve 1.50 and a second abutting member slidably connected to the connecting rod 1.51.

[0048] The first abutting member includes a convex abutting block 1.510 slidably connected to the sleeve 1.50. The convex abutting block 1.510 is connected to the sleeve 1.50 by a third spring 1.506.

[0049] A connecting block 1.510 is fixedly connected to the connecting rod 1.51. The second abutting member includes a second wedge block 1.513 slidably connected to the connecting block 1.510. The second wedge block 1.513 is connected to the connecting block 1.510 by a fourth spring 1.507.

[0050] Specifically, the turntable 1.3 is rotatably connected to the frame 1 through a hinge shaft. A connecting shaft 1.31 is coaxially and fixedly connected to the hinge shaft on the turntable 1.3. A plurality of mounting grooves 1.310 are circumferentially formed in the radial direction of the connecting shaft 1.31. A first spring 1.312 is fixedly connected in each mounting groove 1.310. A first wedge block 1.311 is slidably connected in each mounting groove 1.310. A ratchet groove adapted to the first wedge block 1.311 is formed at the center of the first gear 1.32. The first gear 1.32 is coaxially sleeved on the connecting shaft 1.31, as Figure 5As shown in the figure, a torsion spring is sleeved on the hinge shaft on the other side of the turning table 1.3. One leg of the torsion spring is fixedly connected to the corresponding hinge shaft, and the other leg of the torsion spring is fixedly connected to the frame 1. A second gear 1.33 meshes with the circumferential side of the first gear 1.32. The second gear 1.33 meshes with the rack 1.421. The second gear 1.33 is rotatably connected to the frame 1. A connecting seat 1.01 is slidably connected to the horizontal plane of the working table of the frame 1. A punch 1.40 is detachably connected to the connecting seat 1.01. The connecting seat 1.01 can be connected by means such as bolts, snap connections or plug connections, etc., and it can be selected accordingly according to needs. The punch 1.40 connected to the connecting seat 1.01 can perform secondary forming on the upper surface of the formed sand mold. On the opposite sides of the connecting seat 1.01, a first support seat 1.41 is fixedly connected. A second support seat 1.42 is sleeved outside each first support seat 1.41. Each second support seat 1.42 is connected to its corresponding first support seat 1.41 by a second spring 1.43. Each second support seat 1.42 is connected to the frame 1 by a sixth spring (not marked in the figure). A chute corresponding to each second support seat 1.42 is opened on the frame 1, so that the mounting seat 1.4 can slide in the horizontal direction of the frame 1. A rack 1.421 is fixedly connected to the second support seat 1.42 corresponding to the first gear 1.32. The first gear 1.32 meshes with the rack 1.421.

[0051] On one side of the frame 1 corresponding to each second support seat 1.42, a connecting seat 1.01 is fixedly connected. A transmission slot 1.02 is formed through the connecting seat 1.01, as Figure 2 shown. A transmission pin adapted to the transmission slot 1.02 is fixedly connected to the side wall of each first support seat 1.41. Each transmission pin is arranged in one-to-one correspondence with the transmission slot 1.02, as Figure 4 shown. An expansion link member 1.5 is hinged between the first support seat 1.41 and the sand shooting cover 1.2. The expansion link member 1.5 includes a sleeve 1.50 hinged to the first support seat 1.41 at one end. A connecting rod 1.51 is slidably connected inside the sleeve 1.50. The other end of the connecting rod 1.51 is hinged to the circumferential side of the sand shooting cover 1.2, as Figure 6 shown. At the end position of the sleeve 1.50 corresponding to the first support seat 1.41, there is an abutting portion.

[0052] As Figures 8-11As shown, a fourth spring 1.507 is used to connect between the sleeve 1.50 and the connecting rod 1.51. A connecting groove 1.503 is formed through both side surfaces of the sleeve 1.50. The connecting groove 1.503 is in an "L" shape. A first limiting groove 1.504 is formed above each connecting groove 1.503 on the sleeve 1.50. A second limiting groove 1.505 is formed on the side wall of the sleeve 1.50. A third spring 1.506 is fixedly connected to the side wall of the second limiting groove 1.505. A convex abutting block 1.510 is slidably connected in the second limiting groove 1.505. The other end of the third spring 1.506 is fixedly connected to the convex abutting block 1.510. A limiting block 1.502 adapted to the first limiting groove 1.504 is fixedly connected to the opposite side walls of the convex abutting block 1.510. An end of the connecting rod 1.51 is fixedly connected with a connecting block 1.510. The connecting block 1.510 is provided with a chute adapted to the second wedge block 1.513. A fifth spring 1.514 is fixedly connected to the bottom end of the chute. A waist-shaped groove 1.511 is connected through both opposite sides of the connecting block 1.510. A second wedge block 1.513 is slidably connected inside the connecting block 1.510. The second wedge block 1.513 and the convex abutting block 1.510 cooperate with each other. A connecting pin 1.512 adapted to the waist-shaped groove 1.511 is fixedly connected to the opposite side walls of the second wedge block 1.513.

[0053] During use, after the user finishes shaping the sand mold, at this time, the sand shooting cover 1.2 moves upward. When the sand shooting cover 1.2 moves upward, it drives the telescopic member 1.5 hinged between the sand shooting cover 1.2 and the mounting seat 1.4 to rotate, so that the telescopic member 1.5 drives the mounting seat 1.4 to move in the transmission groove 1.02, and further makes the mounting seat 1.4 move in the horizontal direction of the frame 1, so that the second connecting seat 1.01 drives the rack 1.421 to move, and makes the sixth spring elongate when the second connecting seat 1.01 moves. The rack 1.421 drives the second gear 1.33 to rotate, and the second gear 1.33 drives the first gear 1.32 to move. Since the turning table 1.3 is connected to the frame 1 through a torsion spring, at this time, the torsion spring stores energy. At this time, the turning table 1.3 moves to directly below the convex mold 1.40. At this time, the convex abutting block 1.510 abuts against the abutting portion on the first support seat 1.41, so that the second wedge block 1.513 and the convex abutting block 1.510 abut against each other, unlocking the connecting rod 1.51 and the sleeve 1.50, and enabling the connecting rod 1.51 to slide in the sleeve 1.50. After the secondary shaping of the convex mold 1.40 and the concave mold 1.30 is completed, under the cumulative action of the sixth spring and the fourth spring 1.507, the sleeve 1.50 moves to the horizontal end of the transmission groove 1.02. At this time, under the action of the torsion spring, the turning table 1.3 instantaneously rotates from the horizontal state to the vertical state, thereby realizing the discharging of the sand mold.

[0054] Only some exemplary embodiments of the present invention have been described above by way of illustration. Undoubtedly, for those of ordinary skill in the art, various different ways can be used to modify the described embodiments without departing from the spirit and scope of the present invention. Therefore, the above drawings and description are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A core shooting machine, comprising a frame (1) and a sand shooting cover (1.2) slidably connected to the frame (1), characterized in that: It also includes: a turning table (1.3): which is rotatably connected to the frame (1); A transmission assembly is arranged on the frame (1), one end of which is connected to the turning table (1.3) and the other end of which is connected to the sand-shooting cover (1.2); The transmission assembly comprises a first drive unit and a second drive unit, the first drive unit being used to drive the mounting seat (1.4) to slide on the frame (1), and the second drive unit being used to drive the turning table (1.3) to rotate, thereby realizing unloading of the sand mold; The first driving unit comprises a telescopic rod (1.5), one end of the telescopic rod (1.5) is hinged on the mounting seat (1.4), and the other end of the telescopic rod (1.5) is hinged on the sand shooting cover (1.2); The telescopic rod (1.5) comprises a sleeve (1.50) whose end is hinged on a mounting seat (1.4) and a connecting rod (1.51) whose end is hinged on a sand-shooting cover (1.2); the connecting rod (1.51) and the sleeve (1.50) are slidably connected; an unlocking structure is provided between the connecting rod (1.51) and the sleeve (1.50); ​​when the sleeve (1.50) rotates to a preset angle, the unlocking structure is unlocked, thereby causing the telescopic rod (1.5) to extend and drive the punch (1.40) to move downward; the punch (1.40) is slidably connected to the frame (1); The unlocking structure comprises a first abutment member slidably connected to the sleeve (1.50) and a second abutment member slidably connected to the connecting rod (1.51); The first abutment member comprises a convex abutment block (1.510) on a sliding connection sleeve (1.50), and the convex abutment block (1.510) and the sleeve (1.50) are connected via a first spring (1.506); The connecting rod (1.51) is fixedly connected to the connecting block (1.510), and the second abutment member comprises a first wedge block (1.513) slidably connected to the connecting block (1.510), and the first wedge block (1.513) and the connecting block (1.510) are connected via a second spring (1.507); After the sand mold is formed, the sand shooting cover (1.2) drives the transmission component to move during the upward movement, so that the transmission component drives the turning table (1.3) to rotate, thereby realizing unloading.

2. A core shooting machine according to claim 1, characterized in that: The male mold (1.40) is detachably connected to the mounting seat (1.4).

3. A core shooting machine according to claim 2, characterized in that: When the convex die (1.40) on the mounting seat (1.4) moves to just above the concave die (1.30), the convex die (1.40) moves downward, thereby performing secondary molding.

4. The core shooting machine according to claim 1, characterized in that: The second drive unit comprises a one-way structure coaxially fixedly connected to the turning platform (1.3), the one-way structure is coupled to a first gear (1.32), a second gear (1.33) is meshed on the circumferential side of the first gear (1.32), the second gear (1.33) is meshed with a rack (1.421), and the rack (1.421) is fixedly connected to the mounting seat (1.4).

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