Automatic metal bar feeding device for die casting machine

Abstract

The invention relates to the technical field of feeding of die-casting machines, in particular to an automatic metal bar feeding device for a die-casting machine, which comprises a fixed seat, a fixed frame is mounted at the upper end of the fixed seat, a feeding assembly is mounted at the lower end of the fixed frame, and the feeding assembly comprises a guide frame, a sliding block, a connecting frame, a receiving shell, an extrusion block and a clamping block. The sliding block is connected into the guide frame in a sliding mode, a rotating column is rotationally connected into the sliding block, the connecting frame is installed on the circumferential face of the rotating column, the material receiving shell is installed at the front end of the connecting frame, and the multiple extrusion blocks are all connected into the material receiving shell in a sliding mode. The lower end of the metal rod firstly enters the smelting furnace and finally is completely immersed in the smelting furnace, then the automatic feeding effect of the metal rod is completed, the metal rod is stable and smooth in the feeding process, molten metal in the smelting furnace cannot be sputtered, and the feeding safety is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of die-casting machine feeding, and more particularly to an automatic feeding device for metal bars of a die-casting machine. Background Art

[0002] A die-casting machine is a machine used for pressure casting, consisting of a hot press chamber and a cold press chamber, and is divided into two types: vertical and horizontal. The die-casting machine hydraulically injects molten metal into a mold under pressure and cools it into shape. After the mold is opened, a solid metal casting can be obtained. It was originally used for die-casting lead type. With the advancement of science and technology and industrial production, especially with the development of industries such as automobiles, motorcycles, and home appliances, die-casting technology has achieved extremely rapid development.

[0003] The shortcomings of the existing technology: During the production and manufacturing process of the die-casting machine, metal bars need to be transported to the furnace to be melted into molten metal. During this process, the transportation of metal bars is mostly done manually. When the metal bars are placed into the furnace, it is easy to cause the molten metal in the furnace to splash, posing a major safety hazard. For this reason, we propose an automatic feeding device for metal bars of the die-casting machine. Summary of the Invention

[0004] In order to overcome the above-mentioned defects of the prior art, the present invention provides an automatic feeding device for metal bars of a die-casting machine to solve the problems existing in the above-mentioned background technology.

[0005] The present invention provides the following technical solution: an automatic feeding device for metal bars of a die-casting machine, comprising a fixed seat, a fixed frame being installed at the upper end of the fixed seat, a cleaning assembly and a conveying assembly being arranged in the fixed frame, a feeding assembly being installed at the lower end of the fixed frame, the feeding assembly comprising a guide frame, a slider, a connecting frame, a material receiving shell, an extrusion block and a clamping block, the guide frame being installed at the lower end of the fixed frame, the slider being slidably connected in the guide frame, a plurality of electric push rods being installed between the slider and the guide frame, a rotating column being rotatably connected in the slider, the connecting frame being installed on the circumferential surface of the rotating column, the material receiving shell being installed at the front end of the connecting frame, a plurality of the extrusion blocks being slidably connected in the material receiving shell, the clamping block being slidably connected in the extrusion block, and a first spring being installed between the clamping block and the extrusion block;

[0006] Preferably, a push rod is slidably connected inside the rotating column, and the push rod is slidably connected to a guide plate installed at the lower end of the fixed frame. A corrugated groove is provided on the surface of the guide plate. A support ring is installed on the surface of the push rod. A second spring is installed between the support ring and the rotating column. A connecting block is connected to the front end of the push rod, and the connecting block is fixedly connected to multiple extrusion blocks.

[0007] Preferably, a rack is installed at the lower end of the fixing frame, and a gear is installed on the circumferential surface of the rotating cylinder, and the gear is meshed with the rack.

[0008] Preferably, the conveying assembly includes connecting rods, connecting rollers and a conveyor belt. A pair of the connecting rods are rotatably connected in a fixed frame. The output end of the servo motor installed at the right end of the fixed seat is connected to one of the connecting rods. The connecting rollers are installed on the circumferential surface of the connecting rods. The conveyor belt is connected between the connecting rollers. A plurality of isolation strips are installed on the surface of the conveyor belt. A guide shell is installed in the fixed frame. The guide shell is located in front of the conveyor belt.

[0009] Preferably, the cleaning assembly includes a driving rod, a driven rod, a wire brush, a mounting roller and a vibrating protrusion, and the plurality of driving rods are rotatably connected in the fixed frame, the output end of the driving motor installed at the right end of the fixed frame is connected to one of the driving rods, and the driving rods are connected by a first sprocket set, the mounting rollers are all installed on the circumferential surface of the driving rod, a plurality of sliding grooves are opened in the mounting roller, and the plurality of vibrating protrusions are all slidably connected in the sliding grooves, and a third spring is installed between the vibrating protrusion and the sliding groove.

[0010] Preferably, a plurality of driven rods are rotatably connected in the fixed frame, the driving rod and the driven rod are connected by a second sprocket set, and the driven rods are connected by a third sprocket set. The wire brushes are all installed on the circumferential surface of the driven rod, and a plurality of discharge holes are opened on the upper end surface of the fixed frame.

[0011] Preferably, a push plate is slidably connected in the fixed frame, a connecting seat is installed at the lower end of the push plate, a fourth spring is installed between the connecting seat and the fixed frame, a rotating seat is installed at the lower end of the fixed frame, a linkage shaft is rotatably connected in the rotating seat, the linkage shaft is connected to the driving rod through a fourth sprocket set, and a cam is installed on the circumferential surface of the linkage shaft.

[0012] Preferably, a material storage rack and a transfer rack are installed in the fixed rack, a material blocking plate is slidably connected in the fixed rack, and both ends of the material blocking plate are connected to a driving rack, and the driving rack is fixedly connected to the connecting seat. The technical effects and advantages of the present invention are as follows:

[0013] The first spring pushes the first spring to move the clamping block, and the clamping block engages the metal rod in the material shell to stably squeeze the metal rod, fixing the position of the metal rod in the material shell. As the slider continues to descend, the rotating column drives the material shell and the metal rod therein to rotate ninety degrees, adjusting the metal rod to a vertical state. Subsequently, the extrusion block can be controlled to shake back and forth, so that the clamping block and the metal rod are in a state of continuous separation and contact, and the metal rod can be slowly dropped downward. The lower end of the metal rod will first enter the furnace, and the metal rod will slowly fall and finally be completely immersed in the furnace, thereby completing the effect of automatic feeding of the metal rod. The metal rod feeding process is stable and smooth, and will not cause splashing of molten metal in the furnace, thereby improving the safety during feeding.

[0014] 2. The present invention controls the operation of the driving motor to rotate the mounting roller and the vibrating protrusion slidably connected therein at the same time. When the metal rod moves between the mounting rollers, the high-speed rotating vibrating protrusion will contact the metal rod. In cooperation with the third spring, the vibrating protrusion will continue to shrink and rebound when in contact with the metal rod, thereby causing the metal rod to vibrate and shake off the dust and impurities attached to its surface. Since the vibrating protrusion will rebound when in contact with the metal rod, the vibrating protrusion and the metal rod are in flexible contact and will not produce a strong impact on the impurities attached to the surface of the metal rod, thereby avoiding the impurities being sunken into the metal rod and being difficult to remove. When the metal rod is subsequently unloaded into the furnace, the impurities in the metal after melting are reduced, thereby improving the quality of the metal solution. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0016] Figure 2 It is a schematic diagram on the right side of the present invention;

[0017] Figure 3 It is a schematic diagram of a left-side cross-sectional view in the present invention;

[0018] Figure 4 This is a schematic diagram of the push plate being lifted in the present invention;

[0019] Figure 5 For the present invention Figure 4 Schematic diagram of part A;

[0020] Figure 6 is a schematic diagram of the cleaning component of the present invention;

[0021] Figure 7 Schematic diagram of the pusher plate in the present invention;

[0022] Figure 8A schematic diagram of a cross-section of the installation roller in the present invention;

[0023] Figure 9 A schematic diagram of the disassembly of the vibration bump in the present invention;

[0024] Figure 10 Schematic diagram of the feeding assembly in the present invention;

[0025] Figure 11 It is a schematic diagram of a cross-section of a material receiving shell in the present invention;

[0026] Figure 12 For the present invention Figure 11 Schematic diagram of part B;

[0027] Figure 13 This is a schematic diagram of the material receiving shell rotating in the present invention;

[0028] Figure 14 For the present invention Figure 13 Schematic diagram of part C;

[0029] Figure 15 This is a schematic diagram of the present invention when the material receiving shell and the metal rod are vertical.

[0030] The accompanying drawings are marked as follows: 1. fixing seat; 101. fixing frame; 2. cleaning assembly; 201. driving rod; 202. driving motor; 203. first sprocket group; 204. mounting roller; 205. chute; 206. vibration bump; 207. third spring; 208. driven rod; 209. second sprocket group; 2010. third sprocket group; 2011. wire brush; 2012. discharge hole; 3. conveying assembly; 301. connecting rod; 302. servo motor; 303. connecting roller; 304. conveyor belt; 305. isolation strip; 306. guide shell; 4. feeding assembly; 401. guide frame; 402. slider; 4 03. Multi-stage electric push rod; 404. Rotating column; 405. Connecting frame; 406. Material receiving shell; 407. Extrusion block; 408. Clamping block; 409. First spring; 4010. Ejector rod; 4011. Guide plate; 4012. Corrugated groove; 4013. Support ring; 4014. Second spring; 4015. Connecting block; 4016. Rack; 4017. Gear; 5. Push plate; 501. Connecting seat; 502. Fourth spring; 503. Rotating seat; 504. Linkage shaft; 505. Fourth sprocket set; 506. Cam; 6. Material storage rack; 601. Transfer rack; 602. Material blocking plate; 603. Drive rack. DETAILED DESCRIPTION

[0031] The technical solutions of the present invention will be clearly and completely described below in conjunction with the drawings in the present invention. In addition, the forms of the various structures described in the following embodiments are merely examples. The automatic feeding device for metal bars of a die-casting machine involved in the present invention is not limited to the various structures described in the following embodiments. All other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0032] like Figure 1-12 As shown, in one embodiment, an automatic feeding device for metal bars of a die-casting machine is proposed, comprising a fixed base 1, a fixed frame 101 is mounted on the upper end of the fixed base 1, a cleaning component 2 and a conveying component 3 are arranged in the fixed frame 101, a feeding component 4 is mounted on the lower end of the fixed frame 101, and the feeding component 4 includes a guide frame 401, a slider 402, a connecting frame 405, a receiving shell 406, an extrusion block 407 and a clamping block 408, the guide frame 401 is mounted on the lower end of the fixed frame 101, and the slider 40 2 is slidably connected in the guide frame 401, and a multi-section electric push rod 403 is installed between the slider 402 and the guide frame 401. A rotating column 404 is rotatably connected in the slider 402. The connecting frame 405 is installed on the circumferential surface of the rotating column 404. The material receiving shell 406 is installed at the front end of the connecting frame 405. Multiple extrusion blocks 407 are slidably connected in the material receiving shell 406. The clamping blocks 408 are slidably connected in the extrusion blocks 407. A first spring 409 is installed between the clamping block 408 and the extrusion block 407.

[0033] In actual application of the embodiment of the present invention, the metal rod enters the cleaning component 2, and the impurities attached to its surface are cleaned, and then enters the receiving shell 406 through the conveying component 3. At this time, the multi-stage electric push rod 403 is controlled to operate, driving the slider 402 to move downward in the guide frame 401. During the descent of the slider 402, the rotating column 404 located in the slider 402 rotates, causing the receiving shell 406 and the metal rod therein to rotate. At the same time, the extrusion block 407 pushes the first spring 409 to move the clamping block 408, and the clamping block 408 stably squeezes the metal rod in the receiving shell 406, and the metal rod is fixed to the receiving shell 406. The position in the middle is fixed, and as the slider 402 continues to descend, the rotating column 404 drives the receiving shell 406 and the metal rod therein to rotate ninety degrees, adjusting the metal rod to a vertical state, and then the extrusion block 407 can be controlled to shake back and forth, so that the clamping block 408 and the metal rod are in a continuously separated contact state, and the metal rod can be slowly dropped downward, and the lower end of the metal rod will first enter the furnace, and the metal rod will slowly fall and finally be completely immersed in the furnace, thereby completing the effect of automatic feeding of the metal rod. The metal rod feeding process is stable and smooth, and will not cause splashing of the molten metal in the furnace, thereby improving the safety during feeding.

[0034] like Figure 10-15As shown, as a preferred embodiment of the present invention, a push rod 4010 is slidably connected inside the rotating column 404, and the push rod 4010 is slidably connected to the guide plate 4011 installed at the lower end of the fixed frame 101. A corrugated groove 4012 is provided on the surface of the guide plate 4011. A support ring 4013 is installed on the surface of the push rod 4010. A second spring 4014 is installed between the support ring 4013 and the rotating column 404. A connecting block 4015 is connected to the front end of the push rod 4010, and the connecting block 4015 is fixedly connected to multiple extrusion blocks 407.

[0035] In actual application of the embodiment of the present invention, when the multi-stage electric push rod 403 controls the slider 402 to descend, the push rod 4010 will slide on the surface of the guide plate 4011. As the shape of the guide plate 4011 changes, the push rod 4010 moves forward, and the push rod 4010 pushes the connecting block 4015 to move the multiple extrusion blocks 407 forward. At this time, the extrusion block 407 squeezes the multiple clamping blocks 408 onto the circumference of the metal rod under the action of the first spring 409, fixing the position of the metal rod so that the metal rod will not fall from the receiving shell 406 during the descending and rotating process, thereby avoiding splashing of the molten metal in the furnace below. When the metal rod rotates ninety degrees during the descending process, the metal rod will not fall from the receiving shell 406. When the degree is vertical, the rear end of the push rod 4010 is adjacent to the corrugated groove 4012. As the slider 402 continues to descend, the push rod 4010 can be driven to contact the corrugated groove 4012. At this time, under the action of the second spring 4014 and the support ring 4013, the push rod 4010 shakes back and forth when passing through the corrugated groove 4012, thereby driving the extrusion block 407 and the clamping block 408 to shake back and forth, and the fixation of the metal rod is in a state of continuous loosening and extrusion. In this state, the metal rod will intermittently fall down into the furnace, which will not cause the molten metal in the furnace to splash, so that it can be steadily and smoothly immersed in the furnace, thereby improving the safety of the metal rod when loading.

[0036] like Figure 10-15 As shown, as another preferred embodiment of the present invention, a rack 4016 is installed at the lower end of the fixing frame 101 , and a gear 4017 is installed on the circumferential surface of the rotating column 404 , and the gear 4017 is meshed with the rack 4016 .

[0037] In actual application of the embodiment of the present invention, when the slip ring descends, the gear 4017 will descend synchronously. At this time, under the action of the rack 4016, the gear 4017 is driven to rotate, and the gear 4017 drives the rotating column 404 to rotate, thereby achieving the effect of controlling the material receiving shell 406 and the metal rod to descend and rotate at an angle.

[0038] like Figure 1 and 3As shown, as another preferred embodiment of the present invention, the conveying assembly 3 includes a connecting rod 301, a connecting roller 303 and a conveyor belt 304, a pair of connecting rods 301 are rotatably connected in the fixed frame 101, the output end of the servo motor 302 installed at the right end of the fixed seat 1 is connected to one of the connecting rods 301, the connecting roller 303 is installed on the circumferential surface of the connecting rod 301, the conveyor belt 304 is connected between the connecting rollers 303, a plurality of isolation strips 305 are installed on the surface of the conveyor belt 304, a guide shell 306 is installed in the fixed frame 101, and the guide shell 306 is located in front of the conveyor belt 304.

[0039] In actual application of the embodiment of the present invention, after the metal rod has completed cleaning of impurities on its surface through the cleaning component 2, it will enter the conveyor belt 304. The servo motor 302 will drive the connecting rod 301 and the connecting roller 303 to rotate, causing the conveyor belt 304 to rotate, and the metal rod can be conveyed forward. When the metal rod moves to the end of the conveyor belt 304, it will then fall into the guide shell 306, and the metal rod will fall downward through the guide shell 306, thereby achieving the effect of conveying the metal rod to the receiving shell 406.

[0040] like Figure 3-9 As shown, as another preferred embodiment of the present invention, the cleaning assembly 2 includes a driving rod 201, a driven rod 208, a wire brush 2011, a mounting roller 204 and a vibration bump 206, and multiple driving rods 201 are rotatably connected in the fixed frame 101, and the output end of the driving motor 202 installed at the right end of the fixed frame 101 is connected to one of the driving rods 201, and the driving rods 201 are connected by a first sprocket set 203, and the mounting rollers 204 are all installed on the circumferential surface of the driving rod 201, and multiple slide grooves 205 are opened in the mounting roller 204, and multiple vibration bumps 206 are all slidably connected in the slide groove 205, and a third spring 207 is installed between the vibration bump 206 and the slide groove 205.

[0041] When the embodiment of the present invention is actually used, the driving motor 202 is controlled to operate, driving the driving rod 201 to rotate. The driving rod 201 drives the installation roller 204 to rotate at high speed, thereby driving the vibration protrusion 206 slidingly connected inside the installation roller 204 to rotate. When the metal rod moves between the installation rollers 204, the high-speed rotating vibration protrusion 206 will contact the metal rod. With the cooperation of the third spring 207, the vibration protrusion 206 will continue to shrink and rebound when contacting the metal rod, thereby causing the metal rod to vibrate and shake off dust and impurities attached to its surface. Since the vibration protrusion 206 will rebound when contacting the metal rod, the vibration protrusion 206 and the metal rod are in flexible contact. When impurities are located between the metal rod and the vibration protrusion 206, they will not produce a strong impact on the impurities attached to the surface of the metal rod, thereby avoiding the impurities being sunken into the metal rod and difficult to remove.

[0042] like Figure 3、 4 As shown in Figure 6, as another preferred embodiment of the present invention, a plurality of driven rods 208 are rotatably connected in the fixed frame 101, the driving rod 201 and the driven rod 208 are connected by a second sprocket set 209, and the driven rods 208 are connected by a third sprocket set 2010. The wire brushes 2011 are all installed on the circumferential surface of the driven rod 208, and a plurality of discharge holes 2012 are opened on the upper end surface of the fixed frame 101.

[0043] In actual application of the embodiment of the present invention, when the driving rod 201 rotates, it drives the driven rod 208 to rotate under the action of the second sprocket group 209, and the driven rod 208 drives the wire brush 2011 to rotate. When the metal rod shakes and rotates in the installation roller 204, the wire brush 2011 contacts its surface, further cleaning the dust and impurities on the surface of the metal rod, and the dust and impurities fall through the discharge hole 2012, so that the surface of the metal rod is neat when it enters the conveying component 3. When the metal rod is subsequently discharged into the furnace, the impurities in the metal after melting are reduced, thereby improving the quality of the metal solution.

[0044] In one embodiment of the present invention, since the bristles of the wire brushes 2011 are arranged in a staggered manner, mutual interference can be avoided when the wire brushes 2011 are rotated at a close distance.

[0045] like Figure 3-6 As shown, as another preferred embodiment of the present invention, a push plate 5 is slidably connected in the fixed frame 101, a connecting seat 501 is installed at the lower end of the push plate 5, a fourth spring 502 is installed between the connecting seat 501 and the fixed frame 101, a rotating seat 503 is installed at the lower end of the fixed frame 101, a linkage shaft 504 is rotatably connected in the rotating seat 503, the linkage shaft 504 is connected to the driving rod 201 through a fourth sprocket set 505, and a cam 506 is installed on the circumferential surface of the linkage shaft 504.

[0046] When the embodiment of the present invention is actually used, when the driving rod 201 rotates, the linkage shaft 504 is driven to rotate under the action of the fourth sprocket group 505, and the linkage shaft 504 drives the cam 506 to rotate, and at the same time cooperates with the fourth spring 502 to drive the connecting seat 501 to move back and forth up and down, thereby causing multiple push plates 5 to extend and retract up and down. When the push plate 5 moves upward, it can push the metal rod up. Since the upper end of the push plate 5 has a forward-inclined inclined surface, the metal rod can be pushed upward by the distance of a mounting roller 204, and the metal rod located at the front side will be pushed out of the cleaning component and then enter the conveying component 3.

[0047] like Figure 3-7As shown, as another preferred embodiment of the present invention, a material storage rack 6 and a transfer rack 601 are installed in the fixed frame 101, a blocking plate 602 is slidably connected in the fixed frame 101, and driving frames 603 are connected at both ends of the blocking plate 602, and the driving frame 603 is fixedly connected to the connecting seat 501.

[0048] When the embodiment of the present invention is actually used, the metal rods are stored in the storage rack 6. When the connecting seat 501 drives the pushing plate 5 to move upward, it also drives the driving frame 603 and the blocking plate 602 to move upward, so that the blocking plate 602 releases the blocking effect on the metal rods in the storage rack 6. The metal rods at the front of the storage rack 6 will enter the cleaning component 2, thereby achieving the effect of replenishing the metal rods in the cleaning component 2. At the same time, the metal rods at the front of the cleaning component 2 will be pushed out, and then fall on the transfer rack 601 and roll on the conveyor belt 304. As the connecting seat 501 and the pushing plate 5 are reset, the driving frame 603 and the blocking plate 602 descend synchronously to re-block the metal rods in the storage rack.

[0049] Finally, a few points should be explained: First, in the description of this application, it should be noted that, unless otherwise specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense, and may refer to mechanical or electrical connections, internal communication between two components, or direct connection. "Up," "down," "left," and "right" are only used to indicate relative positional relationships. When the absolute positions of the objects being described change, the relative positional relationships may also change.

[0050] Secondly: The drawings of the embodiments disclosed in the present invention only involve structures related to the embodiments disclosed in the present invention. Other structures may refer to conventional designs. The same embodiment and different embodiments of the present invention may be combined with each other without conflict.

[0051] Finally: The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. An automatic feeding device for metal bars of a die-casting machine, comprising a fixing seat (1), characterized in that: A fixing frame (101) is installed at the upper end of the fixing seat (1), a cleaning assembly (2) and a conveying assembly (3) are arranged in the fixing frame (101), a feeding assembly (4) is installed at the lower end of the fixing frame (101), and the feeding assembly (4) comprises a guide frame (401), a slider (402), a connecting frame (405), a material receiving shell (406), an extrusion block (407) and a clamping block (408), the guide frame (401) is installed at the lower end of the fixing frame (101), the slider (402) is slidably connected in the guide frame (401), and the slider ( A plurality of electric push rods (403) are installed between the slider (402) and the guide frame (401); a rotating column (404) is rotatably connected in the slider (402); the connecting frame (405) is installed on the circumferential surface of the rotating column (404); the material receiving shell (406) is installed at the front end of the connecting frame (405); a plurality of extrusion blocks (407) are all slidably connected in the material receiving shell (406); the clamping blocks (408) are all slidably connected in the extrusion blocks (407); and a first spring (409) is installed between the clamping blocks (408) and the extrusion blocks (407).

2. The automatic feeding device for metal bars of a die-casting machine according to claim 1, characterized in that: A push rod (4010) is slidably connected inside the rotating column (404), and the push rod (4010) is slidably connected to a guide plate (4011) installed at the lower end of the fixed frame (101). A corrugated groove (4012) is provided on the surface of the guide plate (4011). A support ring (4013) is installed on the surface of the push rod (4010), and a second spring (4014) is installed between the support ring (4013) and the rotating column (404). A connecting block (4015) is connected to the front end of the push rod (4010), and the connecting block (4015) is fixedly connected to a plurality of extrusion blocks (407).

3. The automatic feeding device for metal bars of a die-casting machine according to claim 1, characterized in that: A rack (4016) is installed at the lower end of the fixed frame (101), and a gear (4017) is installed on the circumferential surface of the rotating column (404), and the gear (4017) is meshed with the rack (4016).

4. The automatic feeding device for metal bars of a die-casting machine according to claim 1, characterized in that: The conveying assembly (3) comprises a connecting rod (301), a connecting roller (303) and a conveyor belt (304); a pair of the connecting rods (301) are rotatably connected in a fixed frame (101); an output end of a servo motor (302) installed at the right end of the fixed seat (1) is connected to one of the connecting rods (301); the connecting roller (303) is installed on the circumferential surface of the connecting rod (301); the conveyor belt (304) is connected between the connecting rollers (303); a plurality of isolation strips (305) are installed on the surface of the conveyor belt (304); a guide shell (306) is installed in the fixed frame (101); and the guide shell (306) is located in front of the conveyor belt (304).

5. The automatic feeding device for metal bars of a die-casting machine according to claim 1, characterized in that: The cleaning assembly (2) comprises a driving rod (201), a driven rod (208), a wire brush (2011), a mounting roller (204) and a vibration protrusion (206); a plurality of the driving rods (201) are rotatably connected in a fixed frame (101); an output end of a driving motor (202) mounted on the right end of the fixed frame (101) is connected to one of the driving rods (201); the driving rods (201) are connected to each other via a first sprocket set (203); the mounting rollers (204) are mounted on the circumferential surface of the driving rod (201); a plurality of chute grooves (205) are provided in the mounting roller (204); a plurality of the vibration protrusions (206) are slidably connected in the chute grooves (205); and a third spring (207) is mounted between the vibration protrusion (206) and the chute grooves (205).

6. The automatic feeding device for metal bars of a die-casting machine according to claim 5, characterized in that: A plurality of driven rods (208) are rotatably connected in the fixing frame (101), the driving rod (201) and the driven rod (208) are connected via a second sprocket set (209), and the driven rods (208) are connected via a third sprocket set (2010), the wire brushes (2011) are all mounted on the circumferential surface of the driven rod (208), and a plurality of discharge holes (2012) are provided on the upper end surface of the fixing frame (101).

7. The automatic feeding device for metal bars of a die-casting machine according to claim 5, characterized in that: A push plate (5) is slidably connected in the fixed frame (101), a connecting seat (501) is installed at the lower end of the push plate (5), a fourth spring (502) is installed between the connecting seat (501) and the fixed frame (101), a rotating seat (503) is installed at the lower end of the fixed frame (101), a linkage shaft (504) is rotatably connected in the rotating seat (503), the linkage shaft (504) is connected to the driving rod (201) through a fourth sprocket set (505), and a cam (506) is installed on the circumferential surface of the linkage shaft (504).

8. The automatic feeding device for metal bars of a die-casting machine according to claim 7, characterized in that: A material storage rack (6) and a transfer rack (601) are installed in the fixed rack (101), a material blocking plate (602) is slidably connected in the fixed rack (101), and driving racks (603) are connected to both ends of the material blocking plate (602), and the driving rack (603) is fixedly connected to the connecting seat (501).

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