Scraper knife mechanism for cleaning low-pressure casting sealing ring

Abstract

The invention relates to a scraper knife mechanism for cleaning a low-pressure casting sealing ring, which comprises a fixed cross beam, a scraper knife assembly is mounted on the fixed cross beam, and a receiving hopper is arranged below the scraper knife assembly; the scraper knife assembly comprises a scraper knife installation base, a plurality of driving shafts are arranged on the scraper knife installation base, scraper knives are arranged on the driving shafts, connecting rods are arranged at the two ends of each scraper knife, and the ends of the connecting rods are connected with driving devices. The connecting rods of the two perching knives are synchronously driven by the driving device, and the effect of bidirectionally scraping a sealing ring and residual molten aluminum is achieved at the bottom of the feeding port of the die; the driving device drives the connecting rod to reciprocate, and the two scraper knives are matched with each other, so that residues at the bottom of the mold can be shoveled during movement in two directions; the scraper knife assembly is driven by a two-way connecting rod, and after a blade of one scraper knife is flatly attached to the bottom of the mold, the other scraper knife is synchronously lowered for avoiding.

Description

Technical Field

[0001] The invention relates to a scraper mechanism, in particular to a scraper mechanism for cleaning a low-pressure casting sealing ring, and belongs to one of the auxiliary mechanisms of a crucible furnace type low-pressure casting machine. Background Art

[0002] The crucible furnace type low-pressure casting machine needs to use a sealing gasket to seal the riser pipe mouth and the mold feed port for filling casting. After the casting is completed, the riser pipe and the mold feed port are separated, and the sealing gasket is now stuck to the bottom of the mold feed port. After the insulation furnace is filled with molten aluminum and before entering the equipment, the sealing gasket and residual aluminum liquid remaining at the bottom of the mold must be cleaned up, otherwise it will cause aluminum or air leakage at the joint surface between the riser pipe and the mold feed port, resulting in aluminum leakage and unqualified casting. Therefore, the present invention is proposed. Summary of the invention

[0003] In view of the above technical problems of the prior art, the purpose of the present invention is to provide a scraper mechanism for cleaning low-pressure casting sealing rings. The mechanism uses two scraper heads to scrape off the sealing ring and residual aluminum liquid at the bottom of the mold to complete the cleaning work before switching the insulation furnace.

[0004] To achieve the above object, the present invention is implemented by the following technical solutions: A scraper mechanism for cleaning low-pressure casting sealing rings includes a fixed crossbeam, a scraper assembly is installed on the fixed crossbeam, and a material receiving hopper is provided below the scraper assembly; the scraper assembly includes a scraper mounting seat, a plurality of drive shafts are provided on the scraper mounting seat, a scraper is provided on the drive shaft, the scraper is upright on the drive shaft, connecting rods are provided at both ends of the scraper, and the ends of the connecting rods are connected to the driving device.

[0005] There are two drive shafts, which are arranged in parallel on the blade mounting seat. The output shaft of the drive device is provided with a connecting rod mounting opening, and the two connecting rods are connected to the output shaft of the drive device in the connecting rod mounting opening.

[0006] A triangular reinforcement frame is provided below the fixed crossbeam.

[0007] Guide plates are arranged on both sides of the receiving hopper, and the receiving hopper is inserted between the two guide plates.

[0008] The scraper mechanism for cleaning the low-pressure casting sealing ring of the present invention has the following beneficial effects: 1. The present invention has two scrapers, and connecting rods are arranged at both ends of the scrapers, and the connecting rods of the two scrapers are synchronously driven by a driving device, so as to achieve the effect of bidirectionally scraping off the sealing ring and residual aluminum liquid at the bottom of the mold feed port; the driving device drives the connecting rod to reciprocate, and the two scrapers cooperate with each other to achieve the effect of scraping off the residue at the bottom of the mold in both directions; and the scraper assembly is driven by a bidirectional connecting rod, and after the edge of one scraper is flush with the bottom of the mold, the other scraper is synchronously lowered to avoid.

[0009] 2. The back of the scraper in the present invention is limited by an adjusting screw installed on the drive shaft. The scraper stands upright on the drive shaft. When the upright cutting edge scrapes the residue at the bottom of the mold, the pressure of the scraper is transmitted to the back drive shaft through the adjusting screw to increase the scraping force of the scraper, thereby improving the cleanliness of the scraper at the bottom of the mold.

[0010] 3. The present invention provides a receiving hopper at the bottom of the scraper assembly. The sealing ring, aluminum liquid and other residues dropped during the scraping process fall into the bottom receiving hopper through the guide plates on both sides. The receiving hopper is pull-out, which is convenient for manual cleaning of the residues. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention; Figure 2 It is a schematic diagram of the installation position of the receiving hopper in the present invention; Figure 3 It is a schematic diagram of the top view of the structure of the present invention; Figure 4 It is a side view structural schematic diagram of the present invention; Figure 5 for Figure 4 A schematic diagram of the enlarged structure of part A; Figure 6 It is a three-dimensional structural schematic diagram of the scraper assembly in the present invention; Figure 7 It is a schematic diagram of the front view structure of the scraper assembly in the present invention; Figure 8 It is a side structural schematic diagram of the scraper assembly in the present invention; Among them, 1 is a fixed crossbeam, 2 is a receiving hopper, 3 is a blade mounting seat, 4 is a drive shaft, 5 is a blade, 6 is a connecting rod, 7 is a driving device, 8 is an output shaft, 9 is a connecting rod mounting port, 10 is an adjusting screw, 11 is a triangular reinforcement frame, and 12 is a guide plate. DETAILED DESCRIPTION

[0012] The present invention is further described below in conjunction with specific embodiments, but the protection scope of the present invention is not limited thereto.

[0013] like Figure 1-8As shown, the scraper mechanism for cleaning the low-pressure casting sealing ring of the present invention comprises a fixed crossbeam 1, a scraper assembly is installed on the fixed crossbeam 1, a receiving hopper 2 is arranged below the scraper assembly, guide plates 12 are arranged on both sides of the receiving hopper 2, and the receiving hopper 2 is inserted between the two guide plates 12. The sealing ring and aluminum liquid and other residues dropped during the scraping process fall into the bottom receiving hopper 2 through the guide plates 12 on both sides. The receiving hopper 2 is a pull-out method, which is convenient for manual cleaning of the residues.

[0014] Further, the scraper assembly in the present invention includes a scraper mounting seat 3, on which a plurality of drive shafts 4 are arranged. In this embodiment, there are two drive shafts 4, which are arranged in parallel on the scraper mounting seat 3. Each drive shaft 4 is provided with a scraper 5, which is erected on the drive shaft 4 through an adjusting screw 10. The back of the scraper 5 is limited by an adjusting screw 10 installed on the drive shaft 4, and the scraper 5 is erected on the drive shaft 4. When the scraper 5 scrapes the residue at the bottom of the mold through the erected edge, the pressure of the scraper 5 is transmitted to the back drive shaft 4 through the adjusting screw 10 to increase the scraping force of the scraper 5, thereby improving the cleanliness of the scraping at the bottom of the mold.

[0015] Furthermore, the scraper 5 of the present invention is provided with connecting rods 6 at both ends, and the output shaft 8 of the driving device 7 is provided with connecting rod mounting openings 9, and the two connecting rods 6 are connected to the output shaft 8 of the driving device 7 in the connecting rod mounting openings 9. The connecting rods 6 of the two scrapers 5 are synchronously driven by a driving device 7, so as to achieve the effect of bidirectionally scraping off the sealing ring and the residual aluminum liquid at the bottom of the mold feed port; the driving device 7 drives the connecting rod 6 to reciprocate, and the two scrapers 5 cooperate with each other to achieve the effect of scraping off the residue at the bottom of the mold in both directions; and the scraper assembly is driven by the bidirectional connecting rod 6, and after the edge of one scraper 5 is flush with the bottom of the mold, the other scraper 5 is synchronously lowered to avoid.

[0016] The present invention is fixed on the gantry when in use, a triangular reinforcement frame 11 is provided below the fixed crossbeam 1, the gantry is fixed on the mobile device, the mobile device reciprocates at the bottom of the casting equipment, and performs a stroke scraping operation. The present invention uses two scraper heads to scrape away the sealing ring and residual aluminum liquid at the bottom of the mold to complete the cleaning work before the insulation furnace is switched.

[0017] The above embodiments are only used to explain the inventive concept of the present invention, rather than to limit the protection of the rights of the present invention. Any non-substantial changes to the present invention using this concept shall fall within the protection scope of the present invention.

Claims

1. A scraper mechanism for cleaning a low-pressure casting sealing ring, characterized in that: It includes a fixed crossbeam, on which a scraper assembly is mounted, and a material receiving hopper is provided below the scraper assembly; the scraper assembly includes a scraper mounting seat, on which a plurality of drive shafts are provided, on which a scraper is provided, and the drive shaft is provided with a scraper, the scraper is erected on the drive shaft, and connecting rods are provided at both ends of the scraper, and the ends of the connecting rods are connected to driving devices.

2. The scraper mechanism for cleaning the low-pressure casting seal ring according to claim 1, characterized in that: There are two drive shafts, which are arranged in parallel on the blade mounting seat. The output shaft of the drive device is provided with a connecting rod mounting opening, and the two connecting rods are connected to the output shaft of the drive device in the connecting rod mounting opening.

3. The scraper mechanism for cleaning the low-pressure casting seal ring according to claim 1, characterized in that: A triangular reinforcement frame is provided below the fixed crossbeam.

4. The scraper mechanism for cleaning the low-pressure casting seal ring according to claim 1, characterized in that: Guide plates are arranged on both sides of the receiving hopper, and the receiving hopper is inserted between the two guide plates.

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