Double-station full-automatic core shooter

Abstract

The utility model relates to the technical field of full-automatic core shooters, and discloses a double-station full-automatic core shooter which comprises a core shooter body, the core shooter body is composed of a stand column, a base, a sand shooting device and a movable mold component, the movable mold component comprises a sliding plate, a reset spring and a movable mold plate, and double-station switching assemblies are arranged on the top and inside the base. And the double-station switching assembly comprises a turntable, a cylinder, stations, a mold frame, a rotary drum, a spiral sliding groove, an L-shaped sliding rod, a fixed rod and a spring I. According to the double-station full-automatic core shooter, through the arranged double-station switching assembly, when sand shooting of one group of stations and the mold frame is completed, the cylinder drives the turntable to rotate in the upward moving process of the sand shooting device, and the sand shooting device is driven to move upwards to complete sand shooting; according to the sand shooting device, the rotating disc is arranged on the base, so that the station at the top of the rotating disc and the mold base rotate by 180 degrees together, the station switching effect is achieved, next sand shooting can be rapidly carried out, the original mold base after sand shooting can be subjected to coring operation at the same time, and the working efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of full-automatic core-shooting machines, in particular to a double-station full-automatic core-shooting machine. Background Art

[0002] The injection molding machine uses compressed air to evenly inject the molding sand into the sand box for pre-compaction, and then applies pressure for compaction. Commonly used ones are vertical parting boxless injection molding machine and horizontal parting boxless injection molding machine. The vertical parting boxless injection molding machine does not use a sand box for molding. The molding sand is directly injected into the molding chamber with a template. The sand mold has high dimensional accuracy, there are cavities on both sides of the sand box, and the productivity is high, but it is difficult to set the core and has strict requirements on the quality of the molding sand.

[0003] The core shooting machine currently used can only open the movable template for core removal after a set of sand shooting is completed, and then close the mold for the next sand shooting operation, resulting in low overall efficiency. After the sand shooting is completed, the excess sand on the top of the movable template cannot be cleaned, and the staff needs to clean it manually, which increases the workload of the staff. For this reason, we propose a double-station fully automatic core shooting machine. Utility Model Content

[0004] The purpose of the utility model is to provide a double-station fully automatic core shooting machine to solve the problems raised in the above background technology.

[0005] To achieve the above object, the utility model provides the following technical solutions: a double-station fully automatic core shooting machine, including a core shooting machine, the core shooting machine is composed of a column, a base, a sand shooting device and a movable mold component, the movable mold component includes a slide plate, a return spring and a movable mold plate, and a double-station switching component is arranged on the top and inside of the base, and the double-station switching component includes:

[0006] A turntable, the turntable is rotatably mounted on the top of the base, the turntable is penetrated by the cylinder and fixed to the cylinder, the cylinder penetrates the top of the base and the bottom of the cylinder is rotatably mounted on the inner wall of the base;

[0007] A workstation, wherein the workstation is fixed on the top of the turntable, and a mold frame is arranged on the top of the workstation;

[0008] A rotating drum, the rotating drum passes through the rotating disk and the cylinder, the bottom of the rotating drum is rotatably mounted on the inner wall of the base, and a spiral sliding groove is opened on the inner side of the rotating drum;

[0009] The L-shaped slide bar is slidably installed in the spiral slide groove on the inner side of the rotating drum. The bottom of the L-shaped slide bar is penetrated by the fixed rod and is slidably connected with the fixed rod. A spring 1 is fixed to the bottom of the L-shaped slide bar, and one end of the spring 1 away from the L-shaped slide bar is fixed to the surface of the fixed rod. When working, the sand shooting device moves downward, and the sand shooting device pushes the slide plate to move downward. After the slide plate moves downward a certain distance, it pushes against the L-shaped slide bar, and the L-shaped slide bar slides downward along the spiral slide groove on the inner side of the rotating drum, so that the rotating drum rotates.

[0010] Preferably, a pawl 1 is provided on the surface of the rotating drum, a ratchet 1 is provided on the inner side of the cylinder, a groove is provided on the inner wall of the base, a pawl 2 is provided on the surface of the cylinder, and a ratchet 2 is provided on the inner side of the groove. When the L-shaped slide bar moves downward, the rotating drum rotates clockwise, and the pawl 1 on the surface of the rotating drum cannot be stuck on the ratchet 1 on the inner side of the cylinder, and at the same time, the pawl 2 on the surface of the cylinder is stuck on the ratchet 2 on the inner side of the groove, so that the cylinder cannot rotate clockwise with the rotating drum; when the L-shaped slide bar is reset upward, the rotating drum rotates counterclockwise, and the pawl 1 on the surface of the rotating drum is stuck on the ratchet 1 on the inner side of the cylinder, driving the cylinder to rotate counterclockwise, and the cylinder drives the turntable to rotate, so that the work station on the top of the turntable and the mold frame rotate together, which plays the role of switching the work station.

[0011] Preferably, a vertical groove is provided on a side of the column close to the sand shooting device.

[0012] Preferably, the slide plate is slidably mounted on the inner side of the vertical groove, a return spring is fixed to the bottom of the slide plate, one end of the return spring away from the slide plate is fixed to the inner side of the vertical groove, and the passive template of the slide plate passes through and is fixed to the movable template.

[0013] Preferably, a sand scraping device is provided on the top of the skateboard, and the sand scraping device includes a reciprocating ball screw, which is rotatably installed on the top of the skateboard, and the reciprocating ball screw passes through the connecting plate and is fixed to the connecting plate. A scraper is hinged at one end of the connecting plate away from the reciprocating ball screw, and a torsion spring is fixed on the surface of the scraper.

[0014] Preferably, one end of the torsion spring away from the scraper is fixed to the surface of the connecting plate, an interference groove is provided on the inner side of the vertical groove, the reciprocating ball screw is threadedly connected to the circular ring, a plug rod is fixed on the side of the circular ring close to the interference groove, and the plug rod is slidably installed on the inner side of the interference groove, when the slide plate moves upward, the reciprocating ball screw moves upward with the slide plate, and under the action of the friction force between the circular ring and the reciprocating ball screw, the reciprocating ball screw moves upward with the circular ring and the plug rod, and when the plug rod interferes with the inner side of the interference groove, the plug rod cannot continue to move, and the circular ring slides on the reciprocating ball screw, and the reciprocating ball screw rotates back and forth, so that the scraper cleans the top of the moving template.

[0015] Compared with the prior art, the utility model provides a double-station fully automatic core shooting machine, which has the following beneficial effects:

[0016] 1. The double-station fully automatic core shooting machine has a double-station switching component. When a group of stations and mold frames have completed sand shooting, the cylinder drives the turntable to rotate during the upward movement of the sand shooting device, so that the station on the top of the turntable and the mold frame rotate 180° together, which plays the role of switching the station, so that the next sand shooting can be carried out quickly, and the mold frame after the original sand shooting can be cored at the same time, which improves the work efficiency.

[0017] 2. The double-station fully automatic core shooting machine has a sand scraping device. After the sand shooting device is completed, it moves upward, and the reciprocating ball screw moves upward together with the slide plate. Under the action of the friction between the ring and the reciprocating ball screw, the reciprocating ball screw moves upward with the ring and the insertion rod. When the insertion rod contacts the inner side of the contact groove, the insertion rod cannot continue to move, and the ring slides on the reciprocating ball screw, and the reciprocating ball screw rotates back and forth, so that the scraper cleans the top of the moving template, thereby enabling automatic operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of the front view structure of the utility model;

[0019] Figure 2 For this utility model Figure 1 A is a schematic diagram of the enlarged structure;

[0020] Figure 3 This is a schematic diagram of the cross-section front view of the base and the double-station switching assembly of the utility model;

[0021] Figure 4 For this utility model Figure 3 Middle B is a schematic diagram of the enlarged structure;

[0022] Figure 5 For this utility model Figure 3 Middle C is a schematic diagram of the enlarged structure;

[0023] Figure 6 This is a schematic diagram of the cross-section of the cylinder and the rotating drum of the utility model;

[0024] Figure 7 This is a schematic diagram of the structure of the sand scraping device of the utility model;

[0025] Figure 8 This is a schematic diagram of the structure of the movable mold component of the utility model;

[0026] Fig. 9 It is a schematic diagram of the vertical groove and the interference groove structure of the column close to the sand shooting device on the side of the utility model.

[0027] In the figure: 1. core shooting machine; 101. column; 102. sand shooting device; 103. movable mold component; 104. base; 1031. slide plate; 1032. reset spring; 1033. movable mold plate; 2. double-station switching assembly; 21. turntable; 22. cylinder; 23. station; 24. mold frame; 25. rotating cylinder; 26. spiral slide groove; 27. L-shaped slide rod; 28. fixed rod; 29. ​​spring one; 3. sand scraping device; 31. reciprocating ball screw; 32. scraper; 33. resistance groove; 34. ring; 35. plug rod; 36. connecting plate; 37. torsion spring; 5. pawl one; 6. ratchet one; 7. pawl two; 8. ratchet two; 9. groove; 10. vertical groove. DETAILED DESCRIPTION

[0028] like Figure 1-Figure 9 As shown, the utility model provides a technical solution: a double-station fully automatic core shooting machine, including a core shooting machine 1, the core shooting machine 1 is composed of a column 101, a base 104, a sand shooting device 102 and a movable mold component 103, the movable mold component 103 includes a slide plate 1031, a return spring 1032 and a movable mold plate 1033, and a double-station switching component 2 is arranged on the top and inside of the base 104, and the double-station switching component 2 includes: a turntable 21, a cylinder 22, a station 23, a mold frame 24, a rotating cylinder 25, a spiral slide 26, an L-shaped slide rod 27, a fixed rod 28, and a spring 29.

[0029] The turntable 21 is rotatably mounted on the top of the base 104. The turntable 21 is penetrated by the cylinder 22 and fixed to the cylinder 22. The cylinder 22 penetrates the top of the base 104 and the bottom of the cylinder 22 is rotatably mounted on the inner wall of the base 104. The station 23 is fixed on the top of the turntable 21. A mold frame 24 is provided on the top of the station 23. The rotating cylinder 25 passes through the turntable 21 and the cylinder 22. The bottom of the rotating cylinder 25 is rotatably mounted on the inner wall of the base 104. A spiral slide groove 26 is provided on the inner side of the rotating cylinder 25. The L-shaped slide rod 27 is slidably mounted on the spiral slide groove on the inner side of the rotating cylinder 25. In the groove 26, the bottom of the L-shaped slide bar 27 is penetrated by the fixed rod 28 and is slidably connected with the fixed rod 28. A spring 29 is fixed at the bottom of the L-shaped slide bar 27. One end of the spring 29 away from the L-shaped slide bar 27 is fixed to the surface of the fixed rod 28. When starting to work, the sand shooting device 102 moves downward, and the sand shooting device 102 pushes the slide plate 1031 to move downward. After the slide plate 1031 moves downward for a certain distance, it pushes on the L-shaped slide bar 27. The L-shaped slide bar 27 slides downward along the spiral slide groove 26 on the inner side of the rotating drum 25, causing the rotating drum 25 to rotate.

[0030] The surface of the rotating drum 25 is provided with a ratchet 5, the inner side of the cylinder 22 is provided with a ratchet 6, the inner wall of the base 104 is provided with a groove 9, the surface of the cylinder 22 is provided with a ratchet 7, and the inner side of the groove 9 is provided with a ratchet 8. When the L-shaped slide bar 27 moves downward, the rotating drum 25 rotates clockwise, and the ratchet 5 on the surface of the rotating drum 25 cannot be stuck on the ratchet 6 on the inner side of the cylinder 22, and at the same time, the ratchet 7 on the surface of the cylinder 22 is stuck in the groove 9. The ratchet wheel 28 on the inner side of the groove 9 prevents the cylinder 22 from rotating clockwise with the rotating cylinder 25. When the L-shaped slide bar 27 is reset upward, the rotating cylinder 25 rotates counterclockwise. The ratchet pawl 15 on the surface of the rotating cylinder 25 is stuck on the ratchet wheel 16 on the inner side of the cylinder 22, driving the cylinder 22 to rotate counterclockwise. The cylinder 22 drives the turntable 21 to rotate, so that the workstation 23 and the mold frame 24 on the top of the turntable 21 rotate together, which plays the role of switching the workstation 23.

[0031] A vertical groove 10 is opened on one side of the column 101 close to the sand-shooting device 102, and a slide plate 1031 is slidably installed on the inner side of the vertical groove 10. A return spring 1032 is fixed to the bottom of the slide plate 1031, and one end of the return spring 1032 away from the slide plate 1031 is fixed to the inner side of the vertical groove 10. The passive template 1033 of the slide plate 1031 passes through and is fixed to the dynamic template 1033.

[0032] The top of the slide plate 1031 is provided with a sand scraping device 3, which includes a reciprocating ball screw 31, which is rotatably mounted on the top of the slide plate 1031, and the reciprocating ball screw 31 passes through the connecting plate 36 and is fixed to the connecting plate 36, and the end of the connecting plate 36 away from the reciprocating ball screw 31 is hinged with a scraper 32, and a torsion spring 37 is fixed on the surface of the scraper 32, and the end of the torsion spring 37 away from the scraper 32 is fixed to the surface of the connecting plate 36, and the inner side of the vertical groove 10 is provided with a The reciprocating ball screw 31 is threadedly connected to the ring 34, and a plug rod 35 is fixed on one side of the ring 34 close to the reciprocating groove 33. The plug rod 35 is slidably installed on the inner side of the reciprocating groove 33. When the slide plate 1031 moves downward, the slide plate 1031 moves downward with the reciprocating ball screw 31. Since the plug rod 35 is not resisted by the reciprocating groove 33 at this time, the reciprocating ball screw 31 is driven by the friction force between the ring 34 and the reciprocating ball screw 31. 5 moves downward together, when the insertion rod 35 abuts against the inner side of the abutment groove 33, the insertion rod 35 cannot move downward further, and then the insertion rod 35 can slide on the reciprocating ball screw 31 with the ring 34, so that the reciprocating ball screw 31 rotates with the scraper 32 through the connecting plate 36, and the scraper 32 abuts against the nozzle of the sand shooting device 102, so that the scraper 32 rotates at the position where it is hinged with the connecting plate 36, which will not affect the normal rotation of the reciprocating ball screw 31. When moving, the reciprocating ball screw 31 moves upward together with the slide plate 1031. Under the action of the friction between the ring 34 and the reciprocating ball screw 31, the reciprocating ball screw 31 moves upward with the ring 34 and the insertion rod 35. When the insertion rod 35 hits the inner side of the abutment groove 33, the insertion rod 35 cannot continue to move. The ring 34 slides on the reciprocating ball screw 31, and the reciprocating ball screw 31 rotates back and forth, so that the scraper 32 cleans the top of the movable template 1033.

[0033] Based on the above embodiment, when in use, the sand shooting device 102 moves downward, and the sand shooting device 102 pushes the slide plate 1031 to move downward. After the slide plate 1031 moves downward for a certain distance, it pushes against the L-shaped slide bar 27. The L-shaped slide bar 27 slides downward along the spiral slide groove 26 on the inner side of the rotating drum 25, so that the rotating drum 25 rotates. At this time, the rotating drum 25 rotates clockwise, and the pawl 1 5 on the surface of the rotating drum 25 cannot be stuck on the ratchet 1 6 on the inner side of the cylinder 22, and at the same time, the pawl 2 7 on the surface of the cylinder 22 is stuck on the ratchet 2 8 on the inner side of the groove 9, so that the cylinder 22 cannot rotate clockwise with the rotating drum 25.

[0034] The movable mold plate 1033 and the mold frame 24 are molded together, and the sand-shooting device 102 shoots sand into the movable mold plate 1033 and the mold frame 24 through a nozzle.

[0035] After the sand shooting is completed, the sand shooting device 102 moves upward, and under the action of the reset spring 1032, the slide plate 1031 moves upward with the movable template 1033, and the L-shaped slide bar 27 is no longer resisted. Under the action of the spring 29, the L-shaped slide bar 27 resets upward, and the rotating drum 25 rotates counterclockwise. The pawl 5 on the surface of the rotating drum 25 is stuck on the ratchet 6 on the inner side of the cylinder 22, driving the cylinder 22 to rotate counterclockwise together, and the cylinder 22 drives the turntable 21 to rotate, so that the workstation 23 and the mold frame 24 on the top of the turntable 21 rotate 180° together, which plays the role of switching the workstation 23.

[0036] At the same time, the reciprocating ball screw 31 moves upward together with the slide plate 1031. Under the action of the friction between the ring 34 and the reciprocating ball screw 31, the reciprocating ball screw 31 moves upward with the ring 34 and the insertion rod 35. When the insertion rod 35 hits the inner side of the abutment groove 33, the insertion rod 35 cannot continue to move. The ring 34 slides on the reciprocating ball screw 31, and the reciprocating ball screw 31 rotates back and forth, so that the scraper 32 cleans the top of the movable template 1033, so that the operation can be performed automatically.

[0037] The above generally describes the present invention in detail, but it is obvious to a person skilled in the art that some modifications or improvements can be made to the present invention. Therefore, modifications or improvements that do not depart from the spirit of the present invention are within the scope of protection of the present invention.

Claims

1. A double-station fully automatic core shooting machine, comprising a core shooting machine (1), the core shooting machine (1) comprising a column (101), a base (104), a sand shooting device (102) and a movable mold component (103), the movable mold component (103) comprising a slide plate (1031), a return spring (1032) and a movable mold plate (1033), characterized in that: A double-station switching component (2) is arranged on the top and inside of the base (104), and the double-station switching component (2) comprises: A turntable (21), the turntable (21) being rotatably mounted on the top of the base (104), the turntable (21) being penetrated by the cylinder (22) and being fixed to the cylinder (22), the cylinder (22) penetrating the top of the base (104) and the bottom of the cylinder (22) being rotatably mounted on the inner wall of the base (104); A work station (23), wherein the work station (23) is fixed on the top of the turntable (21), and a mold frame (24) is provided on the top of the work station (23); A rotating drum (25), the rotating drum (25) passes through the rotating disk (21) and the cylinder (22), the bottom of the rotating drum (25) is rotatably mounted on the inner wall of the base (104), and a spiral sliding groove (26) is provided on the inner side of the rotating drum (25); An L-shaped slide bar (27) is slidably mounted in a spiral slide groove (26) on the inner side of the rotating drum (25); the bottom of the L-shaped slide bar (27) is penetrated by a fixed rod (28) and is slidably connected to the fixed rod (28); a spring (29) is fixed to the bottom of the L-shaped slide bar (27); one end of the spring (29) away from the L-shaped slide bar (27) is fixed to the surface of the fixed rod (28).

2. A double-station fully automatic core shooting machine according to claim 1, characterized in that: A ratchet pawl (5) is arranged on the surface of the rotating drum (25), a ratchet wheel (6) is arranged on the inner side of the cylinder (22), a groove (9) is opened on the inner wall of the base (104), a ratchet pawl (7) is arranged on the surface of the cylinder (22), and a ratchet wheel (8) is arranged on the inner side of the groove (9).

3. A double-station fully automatic core shooting machine according to claim 1, characterized in that: A vertical groove (10) is provided on one side of the column (101) close to the sand-shooting device (102).

4. A double-station fully automatic core shooting machine according to claim 3, characterized in that: The slide plate (1031) is slidably mounted on the inner side of the vertical groove (10), a return spring (1032) is fixed to the bottom of the slide plate (1031), one end of the return spring (1032) away from the slide plate (1031) is fixed to the inner side of the vertical groove (10), and the passive template (1033) of the slide plate (1031) passes through and is fixed to the movable template (1033).

5. The double-station fully automatic core shooting machine according to claim 3, characterized in that: A sand scraping device (3) is arranged on the top of the slide plate (1031), and the sand scraping device (3) comprises a reciprocating ball screw (31), and the reciprocating ball screw (31) is rotatably mounted on the top of the slide plate (1031), and the reciprocating ball screw (31) passes through a connecting plate (36) and is fixed to the connecting plate (36), and a scraper (32) is hingedly connected to one end of the connecting plate (36) away from the reciprocating ball screw (31).

6. A double-station fully automatic core shooting machine according to claim 5, characterized in that: A torsion spring (37) is fixed on the surface of the scraper (32), and one end of the torsion spring (37) away from the scraper (32) is fixed to the surface of the connecting plate (36). An abutment groove (33) is provided on the inner side of the vertical groove (10). The reciprocating ball screw (31) is threadedly connected to the circular ring (34). A plug rod (35) is fixed on the side of the circular ring (34) close to the abutment groove (33), and the plug rod (35) is slidably installed on the inner side of the abutment groove (33).

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