CN217553027U - Automatic grinding equipment for injection molding pouring gate - Google Patents

Abstract

The utility model discloses an injection molding gate automatic grinding equipment, which is applied in the technical field of injection molding product processing, aiming at the problems of low efficiency of manual grinding and unstable quality. The feeding track and the conveying assembly are arranged on the inner side of the feeding track; the feeding mechanism, the feeding mechanism is set on the machine table, and the feeding mechanism includes a discharge seat arranged on the outer side of the feeding track, and a discharge seat vertically arranged on the discharge seat. The upper material-moving cylinder, the lifting cylinder arranged above the material-moving cylinder, and the tension cylinder arranged on the side of the discharge seat, the lower end of the material-moving cylinder is provided with a material-moving jaw; The grinding device and polishing device on the side away from the feeding rail, the one end of the grinding device and polishing device close to the feeding rail is attached to the gate of the injection product; the technical effect is that the automatic grinding of the injection gate is realized, and the grinding efficiency is high and the quality is high. Stablize.

Description

Injection gate automatic grinding equipment

technical field

The utility model relates to the technical field of injection molding product processing, in particular to an injection molding gate automatic grinding device.

Background technique

Injection molding is a method for the production and modeling of industrial products. In the production process of injection molding products, molding molds are used to make injection molding raw materials into plastic products of various shapes; the gate in the injection molding mold is also called the feeding port. In the prior art, injection molding The mold is usually poured from the bottom of the product through a side gate. After production, the product is connected to the gate. The gate is manually cut off with special scissors, and then the gate of the product is smoothed with sandpaper. The method of manual grinding of the gate is used. On the one hand, due to the uneven level of operators, the product is easily damaged when grinding the gate, and the defective product rate is high; on the other hand, the manual grinding of the gate reduces the efficiency of injection molding.

Therefore, it is necessary to propose an automatic grinding equipment for injection gates, which can replace manual work, realize automatic grinding of injection gates, and improve grinding efficiency and quality.

Utility model content

In view of the deficiencies in the prior art, the purpose of the present invention is to provide an automatic grinding equipment for injection gates, which has the advantages of stable grinding quality and high efficiency.

To achieve the above object, the utility model provides the following technical solutions:

An automatic grinding equipment for injection gate, comprising:

a machine table, the machine table is provided with an annular feeding track and a conveying assembly for conveying injection-molded products, and the conveying assembly is arranged on the inner side of the feeding track;

A feeding mechanism, which is arranged on the machine table, is used to move the injection molded products to the feeding rail, and the feeding mechanism includes a discharging seat, a vertical A material-moving cylinder arranged directly above the discharge seat, a lifting cylinder arranged above the material-moving cylinder, and a pulling force cylinder arranged on the side of the discharge seat, the lifting cylinder controls the material-moving cylinder in the vertical direction moving, the pulling force cylinder controls the material-moving cylinder to move in the horizontal direction, and the lower end of the material-moving cylinder is provided with a material-moving jaw for gripping the injection-molded product;

Grinding mechanism, the grinding mechanism is arranged on the machine table and used for grinding injection products, the grinding mechanism includes a grinding device and a polishing device arranged in sequence on the side of the machine table away from the feeding track. One end of the grinding device and polishing device close to the feeding guide rail is fitted to the gate of the injection molded product.

Through the above technical solution, the injection molded product is placed on the discharge seat, and the injection molded product is removed by the provided material moving cylinder and material moving gripper. For injection molding products, the material moving cylinder is moved to the top of the feeding guide by the tension cylinder, which realizes the automatic material moving of injection molding products without manual operation and improves the processing efficiency; the grinding mechanism is set on the side of the machine, and the grinding device and polishing The device treats the gate of the injection molded product twice, the grinding quality is good, and the defective product rate is reduced.

Further, the conveying assembly includes a plurality of material seats slidably arranged on the feeding track, an annular drag chain arranged along the annular inner side of the feeding track, and a plurality of rotary drag chains arranged along the vertical axis on the annular drag chain. The gear plate on the inner side of the chain, the outer peripheral surface of the gear plate meshes with the inner side of the annular towline, and the end of the material seat away from the feeding track is arranged on the annular towline.

The beneficial effect is: when the gear plate rotates, it can drive the annular towline that meshes with the gear plate to move, and because one end of the material holder is connected to the annular towline, when the annular towline moves, the material holder can follow the movement of the annular towline. The synchronous movement enables the material seat to slide on the feeding track, with a high degree of automation and high feeding efficiency.

Further, the material seat includes a base that is slidably arranged on the feeding track, a support seat that is arranged above the base, a sliding seat that is arranged above the supporting seat, and a sliding seat that is slidably arranged on the sliding seat. the trough seat;

The two sets of the sliding seats are arranged symmetrically along the length direction of the support seat, and the two sets of the trough seats are arranged between the opposite sides of the two sets of sliding seats. A horizontal clamping spring is arranged between the opposite sides of the two groups of the material trough seats and the sides of the sliding seat.

The beneficial effect is that: the injection molded product is placed in the discharging chute, and when the base slides on the feeding track, the injection molding product in the discharging chute moves along with it, thereby realizing the movement of the injection molding product on the discharging track, which is beneficial to The injection molded product is transported to the corresponding station; a horizontal clamping spring is arranged between the trough seat and the sliding seat. When a force is applied to the trough seat, the two groups of trough seats can be moved away from each other. , At this time, the space of the discharge chute becomes larger, which is conducive to the smooth placement of the injection molded product; when the injection molding product is placed, the force on the chute seat is removed, and the two groups of chute seats are in the elastic force of the clamping spring. They are close to each other under the action of, and can clamp the injection molded product.

Further, a vertical guide post is arranged above the trough seat, a guide wheel is rotatably arranged on the guide post, and an expansion cylinder is arranged on the side of the trough seat, and the expansion cylinder is close to one end of the guide post. A wedge-shaped block is provided, and the opposite sides of the two groups of wedge-shaped blocks are in contact with the outer peripheral surface of the guide wheel, and the expansion cylinder controls the two groups of trough seats to slide in a direction away from each other.

The beneficial effect is that the expansion cylinder controls the wedge-shaped block to move to the side close to the guide wheel. After the wedge-shaped block is attached to the outer peripheral surface of the guide wheel, the expansion cylinder continues to control the movement of the wedge-shaped block, and the two groups of wedge-shaped blocks exert a pushing effect on the guide wheel. Force, so that the two sets of trough seats are far away from each other, so that the space of the discharge trough becomes larger, which is conducive to the transfer jaws to put the injection molded products into the discharge trough.

Further, the grinding device includes a grinding motor arranged on the side of the machine table and a milling cutter arranged at one end of the grinding motor close to the feeding track, and one end of the milling cutter close to the feeding track fits the gate of the injection molded product. , the grinding motor controls the rotation of the milling cutter; a number of pressing rollers are arranged horizontally above the milling cutter, and the circumferential surface of the pressing rollers fits the upper end of the injection molded product.

The beneficial effects are: the grinding motor controls the rotation of the milling cutter, so that the milling cutter grinds the gate of the injection molded product, which has high efficiency and good quality compared with manual polishing; by setting the pressing roller, the injection molded product is pressed by the pressing roller. , to prevent the injection molding product from jumping out during the grinding process.

Further, the polishing device includes a polishing motor disposed on the side of the machine table and a polishing grinding wheel disposed at one end of the polishing motor close to the feeding track. The polishing motor controls the rotation of the polishing grinding wheel.

The beneficial effects are as follows: the polishing motor controls the rotation of the polishing grinding wheel, and the polishing grinding wheel rotates at a high speed to polish the gate of the injection-molded product, thereby improving the smoothness of the gate of the injection-molded product and improving the grinding quality.

Further, a dust collecting hopper is arranged below the grinding mechanism, a suction fan is arranged on the lower end of the dust collecting hopper, an air inlet and an air outlet are arranged on the suction fan, and the lower end of the dust collecting hopper is connected with the suction fan. The air inlet is connected.

The beneficial effects are: in the process of grinding and polishing, dust is easily generated, and by setting the exhaust fan and the dust collecting hopper, the exhaust fan can extract the dust generated in the grinding and polishing process and reduce dust pollution.

Further, the downstream of the grinding mechanism is provided with a stopper mechanism for limiting the position of the material holder, and the stopper mechanism includes an optical fiber sensor arranged on the side of the feeding track, and a limiter arranged on the side of the machine table. A cylinder and a limit block arranged at the upper end of the limit cylinder, a limit groove matched with the limit block is arranged on the side of the material seat close to the limit block, and the limit cylinder controls The limit block is inserted into the limit slot.

The beneficial effect is that the optical fiber sensor can identify and detect the material seat passing on the feeding track. When the two groups of material seats pass through the optical fiber sensor, the limit cylinder controls the limit block to be stuck into the limit groove. At this time, the material seat Stop moving to facilitate taking out the finished injection molded product.

Further, a number of organ covers are slidably arranged on the feeding track, the organ covers are arranged between two groups of adjacent material seats, and the two ends of the length direction of the organ cover are respectively connected to the two groups of adjacent material seats. opposite side.

The beneficial effect is that the organ cover is arranged on the feeding track, which is beneficial to prevent dust from falling onto the track.

Further, a transparent protective cover is provided on the machine table, the feeding mechanism, the grinding mechanism and the transmission assembly are arranged in the protective cover, and a safety grating is provided on the side of the protective cover close to the feeding mechanism.

The beneficial effects are: the transparent protective cover has the functions of dustproof and safety protection, which is beneficial to improve the safety performance of the equipment; by setting the safety grating, when the safety grating detects the human body, it can send a signal to stop the operation of the equipment to avoid casualties. .

To sum up, the utility model has the following beneficial effects:

This scheme realizes automatic material transfer and automatic grinding of injection products by setting up feeding mechanism, grinding mechanism and conveying components, instead of manual grinding, with high efficiency and good quality; and, by dividing the grinding mechanism into grinding device and polishing device, Grinding and polishing the gate of the injection molded product twice makes the gate of the injection molded product smoother and improves the quality of the polished product.

Description of drawings

Fig. 1 is the overall structure schematic diagram of this embodiment;

Fig. 2 is the structural representation of the grinding mechanism of the present embodiment;

Fig. 3 is the structural representation of the feeding mechanism of the present embodiment;

4 is a schematic structural diagram of the transmission assembly of the present embodiment;

Fig. 5 is the connection structure schematic diagram of the exhaust fan of the present embodiment;

FIG. 6 is a schematic structural diagram of the stopper mechanism of this embodiment.

In the picture: 1. Machine; 2. Feeding mechanism; 21. Discharging seat; 22. Material-moving cylinder; 23. Lifting cylinder; 24. Pulling cylinder; 3. Grinding mechanism; 31. Grinding device; 311. Grinding motor ;312, milling cutter; 32, polishing device; 321, polishing motor; 322, polishing wheel; 4, conveying assembly; 41, material seat; 411, base; 412, support seat; 413, sliding seat; ;42. Ring towline; 43. Gear plate; 5. Feeding track; 6. Protective cover; 7. Safety grating; 8. Injection molding product; 13, guide wheel; 14, wedge block; 15, expansion cylinder; 16, press roller; 17, dust bucket; 18, exhaust fan; 19, stop mechanism; 191, optical fiber sensor; 192, limit cylinder; 193 25, limit slot; 26, guide wheel; 27, connecting plate; 28, connecting shaft; 29, swing arm; 30, organ cover; 31, stepping motor.

Detailed ways

The present utility model will be described in detail below with reference to the accompanying drawings and embodiments.

This specific embodiment is only an explanation of the present utility model, and it is not a limitation of the present utility model. Those skilled in the art can make modifications to the present embodiment without creative contribution as needed after reading this specification, but as long as the utility model is used in the present invention All new types of claims are protected by the patent law.

Example:

As shown in Figures 1-4, an injection gate automatic grinding equipment includes a machine 1 and a feeding mechanism 2, a grinding mechanism 3 and a conveying assembly 4 arranged on the machine 1.

As shown in FIG. 1 , the machine table 1 is a square table-top structure, and an annular feeding track 5 is arranged on the machine table 1. The feeding track 5 in this embodiment is a closed square annular structure, and the four sides of the feeding track 5 The corner is arc-shaped; the machine table 1 is provided with a transparent protective cover 6, the feeding mechanism 2, the grinding mechanism 3 and the transmission assembly 4 are arranged in the protective cover 6, and the side of the protective cover 6 close to the feeding mechanism 2 is provided with The safety grating 7, the safety grating 7 in this embodiment can be the ESE series safety grating 7 produced by Shenzhen Ipuxing Technology Co., Ltd.

As shown in FIG. 2 , the grinding mechanism 3 is arranged on the machine table 1. The function of the grinding mechanism 3 is to polish and polish the injection molded product 8. The grinding mechanism 3 includes grinding devices arranged in sequence on the side of the machine table 1 away from the feeding track 5. 31 and polishing device 32, one end of the polishing device 31 and polishing device 32 close to the feeding guide rail is attached to the gate of the injection molded product 8;

The grinding device 31 includes a grinding motor 311 arranged on the side of the machine table 1 and a milling cutter 312 arranged at one end of the grinding motor 311 close to the feeding rail 5, and one end of the milling cutter 312 close to the feeding rail 5 is fitted to the gate of the injection molded product 8 for grinding. The motor 311 controls the rotation of the milling cutter 312 ; several pressing rollers 16 are arranged horizontally above the milling cutter 312 , and the circumferential surface of the pressing rollers 16 fits the upper end of the injection molded product 8 . During milling and grinding, the pressing roller 16 exerts a downward force on the injection molded product 8 to prevent the injection molded product 8 from jumping, and the injection molded product 8 is more stable during grinding, thereby improving the grinding quality.

The polishing device 32 includes a polishing motor 321 disposed on the side of the machine table 1 and a polishing grinding wheel 322 disposed at one end of the polishing motor 321 close to the feeding track 5 . The polishing wheel 322 rotates.

As shown in Figures 2 and 3, the feeding mechanism 2 is arranged on the machine table 1. The function of the feeding mechanism 2 is to transfer the injection molded product 8 to the feeding rail 5. The feeding mechanism 2 includes a set on the outside of the feeding rail 5. The discharge seat 21, the material moving cylinder 22 vertically arranged above the discharging seat 21, the lifting cylinder 23 arranged above the material moving cylinder 22, and the pulling force cylinder 24 arranged on the side of the discharging seat 21, the lifting cylinder 23 controls the movement. The material cylinder 22 moves in the vertical direction, the pulling force cylinder 24 controls the material movement cylinder 22 to move in the horizontal direction, and the lower end of the material movement cylinder 22 is provided with a material moving jaw 9 for clamping the injection molded product 8; In the feeding chute where the injection molded product 8 is placed, the injection molded product 8 is placed in the feeding chute; during operation, since the material moving cylinder 22 is arranged at the lower end of the lifting cylinder 23, when the piston rod of the lifting cylinder 23 shrinks, the material moving cylinder 22 When the piston rod of the lifting cylinder 23 extends, the material-moving cylinder 22 descends. After the material-moving cylinder 22 descends, the material-moving jaw 9 clamps the injection-molded product 8 in the feeding trough. The product 8 is separated from the feeding chute; the pulling force cylinder 24 moves the feeding cylinder 22 to the direction close to the feeding rail 5 , so that the feeding cylinder 22 moves directly above the feeding rail 5 .

As shown in Fig. 3, Fig. 4, Fig. 5, the conveying assembly 4 is arranged on the machine table 1 and is located on the inner side of the feeding track 5. The function of the conveying assembly 4 is to convey the injection molded product 8, and the conveying assembly 4 includes several sliding devices. The material seat 41 on the feeding track 5, the annular towline 42 arranged along the inner side of the feeder track 5, and a plurality of gear plates 43 rotatably arranged on the inner side of the annular towline 42 along the vertical axis, the annular towline 42 is connected to the feeding track 5. Coaxial, the outer peripheral surface of the gear plate 43 meshes with the inner side of the annular towline 42, and the end of the material seat 41 away from the feeding track 5 is arranged on the annular towline 42; in this embodiment, the number of gear plates 43 is four groups , the four groups of gear discs 43 are respectively arranged at the four corners of the annular drag chain 42, the middle of the gear disc 43 is provided with a vertical rotating shaft, the lower end of the rotating shaft is provided with a stepping motor 31, and the output shaft of the stepping motor 31 is connected to the The rotating shaft is connected. When the stepping motor 31 drives the rotating shaft to rotate, the gear plate 43 rotates with the vertical rotating shaft as the axis. Since the outer peripheral surface of the gear plate 43 meshes with the inner side of the annular towline 42, the annular towline 42 can follow the The rotation of the gear plate 43 moves.

As shown in FIG. 3 and FIG. 4 , the material seat 41 includes a base 411 slidably disposed on the feeding track 5 , a support base 412 disposed above the base 411 , a sliding seat 413 disposed above the support base 412 , and a sliding seat 413 disposed above the support base 412 The trough seat 414 on the sliding seat 413; in this embodiment, the lower end of the base 411 is provided with four sets of guide wheels 26 that rotate along the vertical axis, and the circumferential surface of the guide wheels 26 is in contact with the vertical side of the feeding track 5, Two sets of the four sets of guide wheels 26 are arranged on the same side of the feeding track 5 , and the other two sets of guide wheels 26 are symmetrically arranged on the other side of the feeding track 5 along the width direction of the base 411 , and the upper end of the feeding track 5 is attached to the base 411 With this structure, the feeding track 5 is clamped by the guide wheels 26 located on both sides of the feeding track 5, so that the base 411 is limited on the guide rail, and the base 411 is not easy to deviate from the feeding track 5 during the sliding process, and, The guide wheel 26 can rotate, and the frictional resistance is small, which is favorable for the base 411 to slide on the feeding track 5 .

As shown in FIG. 3 and FIG. 4 , the two sets of sliding seats 413 are symmetrically arranged along the length direction of the support base 412 , the two sets of trough seats 414 are arranged between the opposite sides of the two sets of sliding seats 413 , and the two sets of trough seats 414 are opposite to each other. A discharge chute for placing the injection-molded product 8 is formed between the side surfaces of the two sets of material chute seats 414 , and a horizontal clamping spring 11 is provided between the side surfaces of the two sets of material chute seats 414 and the side surface of the sliding seat 413 .

As shown in FIGS. 3 and 4 , a vertical guide post 12 is arranged above the trough seat 414 , a guide wheel 13 is rotatably arranged on the guide post 12 , and an expansion cylinder 15 is arranged on the side of the trough seat 414 , and the expansion cylinder 15 A wedge-shaped block 14 is arranged at one end of the guide column 12, and the opposite sides of the two groups of wedge-shaped blocks 14 are fitted to the outer peripheral surface of the guide wheel 13, and the expansion cylinder 15 controls the two groups of trough seats 414 to slide in a direction away from each other; The method is as follows: the end of the wedge-shaped block 14 close to the guide wheel 13 is the insertion end, the end of the wedge-shaped block 14 away from the guide wheel 13 is the expansion end, and the horizontal distance between the insertion ends of the two sets of wedge-shaped blocks 14 is smaller than that between the two sets of guide wheels 13 The horizontal distance between the two sets of wedge-shaped blocks 14 is greater than the horizontal distance between the two sets of guide wheels 13, the horizontal distance between the insertion ends of the wedge-shaped blocks 14 and the horizontal distance between the expansion ends of the wedge-shaped blocks 14 The difference is smaller than the distance between the opposite side of the trough seat 414 and the side surface of the support seat 412; when the expansion cylinder 15 controls the wedge block 14 to approach the guide wheel 13, the opposite sides of the insertion ends of the two groups of wedge blocks 14 will first meet the guide The circumferential surface of the wheel 13 is fitted, the wedge-shaped block 14 continues to move toward the guide wheel 13, the expanding end of the wedge-shaped block 14 exerts a force on the guide wheel 13, and the two groups of trough seats 414 are stretched by the wedge-shaped block 14 and move away from each other. The clamping spring 11 is compressed, and the space of the discharge chute becomes larger, which is conducive to the smooth insertion of the injection molded product 8 .

As shown in FIG. 5 , a dust collecting hopper 17 is arranged below the grinding mechanism 3 , a suction fan 18 is arranged at the lower end of the dust collecting hopper 17 , an air inlet and an air outlet are arranged on the suction fan 18 , and the lower end of the dust collecting hopper 17 is connected to the suction fan 18 . The air inlet of the machine 18 is communicated.

As shown in FIG. 5 , a plurality of organ covers 30 are slidably arranged on the feeding track 5 , the organ covers 30 are arranged between two groups of adjacent material seats 41 , and both ends of the organ cover 30 in the length direction are respectively connected to two adjacent groups of On the opposite side of the material seat 41 , when the material seat 41 moves on the feeding track 5 , the organ cover 30 moves along with it, which can effectively prevent dust from falling onto the track.

As shown in FIG. 6 , a stopper mechanism 19 for limiting the position of the material seat 41 is provided downstream of the grinding mechanism 3 . The stopper mechanism 19 includes an optical fiber sensor 191 arranged on the side of the feeding track 5 , The limit cylinder 192 and the limit block 193 arranged on the upper end of the limit cylinder 192 are provided with a limit groove 25 which is matched with the limit block 193 on the side of the material holder 41 close to the limit block 193. The limit cylinder 192 controls the limit block 193 to be inserted into the limit slot 25; the side of the machine table 1 in this embodiment is provided with two sets of L-shaped connecting plates 27 symmetrically arranged along the vertical axis of the limit slot 25, and two sets of connecting plates A connecting shaft 28 is rotatably provided between the opposite sides of the connecting shaft 27, the horizontal ends of the connecting shaft 28 abut the opposite sides of the connecting plate 27 respectively, and the lower end of the limit block 193 is fixed in the middle of the connecting shaft 28. The upper end of the block 193 is consistent with the vertical height of the limiting groove 25; the connecting shaft 28 is fixedly provided with a swing arm 29, the upper end of the swing arm 29 is connected with the connecting shaft 28, and the lower end of the swing arm 29 is connected with the piston rod of the limiting cylinder 192 Connection, the cylinder body of the limiting cylinder 192 is set close to the end of the feeding track 5, when the piston rod of the limiting cylinder 192 extends, the lower end of the swing arm 29 moves to the end away from the feeding track 5, at this time, the swing arm 29 The upper end is subjected to the force of moving toward the end close to the feeding track 5 , the swing arm 29 drives the connecting shaft 28 to rotate clockwise, and the limiting block 193 approaches and engages in the limiting groove 25 .

The working principle and working process of the present utility model are as follows:

When working, first place the injection molded product 8 on the discharge seat 21, and the lifting cylinder 23 controls the material moving cylinder 22 to descend. When the material shifting jaw 9 contacts the injection molded product 8, the material shifting cylinder 22 controls the material shifting jaw 9 to clamp Take and move the injection molding product 8; then the lifting cylinder 23 controls the material moving cylinder 22 to rise, and the pulling cylinder 24 controls the material moving cylinder 22 to move to the side close to the feeding track 5; Right above, then, the expansion cylinder 15 controls the wedge block 14 to spread the two sets of trough seats 414, the material transfer cylinder 22 places the injection molded product 8 into the discharge trough, and the expansion cylinder 15 controls the wedge block 14 away from the trough seat 414, The two groups of trough seats 414 are close to each other under the resilience of the clamping spring 11. At this time, the injection molded product 8 is clamped by the trough seats 414;

The material holder 41 carries the injection molded product 8 and moves on the feeding track 5. When the material holder 41 moves to the position corresponding to the grinding device 31, the grinding device 31 grinds the gate of the injection molded product 8. At this time, the exhaust fan 18 will grind The generated dust is removed; after the grinding, the material seat 41 continues to move, and the polishing device 32 polishes the gate of the injection molded product 8. After the polishing is completed, the injection molded product 8 completes the grinding process; finally, the injection molded product 8 is transported After reaching the detection point of the optical fiber sensor 191 , after the optical fiber sensor 191 detects that the two groups of material holders 41 pass through, the limit cylinder 192 controls the limit block 193 to be inserted into the limit slot 25 , so that the material holder 41 is stopped on the feeding track 5 . The equipment has a high degree of automation, realizing automatic material moving and automatic grinding, high efficiency and stable quality.

The above are only the preferred embodiments of the present invention, and the protection scope of the present invention is not limited to the above-mentioned embodiments, and all technical solutions that belong to the idea of the present invention belong to the protection scope of the present invention. It should be pointed out that for those skilled in the art, some improvements and modifications without departing from the principle of the present invention should also be regarded as the protection scope of the present invention.

Claims (10)

1. an injection gate automatic grinding equipment, is characterized in that, comprises: A machine (1), the machine (1) is provided with an annular feeding track (5) and a conveying assembly (4) for conveying injection molded products (8), the conveying assembly (4) is arranged on the the inner side of the feeding track (5); A feeding mechanism (2), the feeding mechanism (2) is arranged on the machine table (1), and is used for transferring the injection-molded product (8) to the feeding rail (5), and the feeding The mechanism (2) comprises a discharging seat (21) arranged on the outer side of the feeding track (5), a material moving cylinder (22) vertically arranged above the discharging seat (21), and a material moving cylinder (22) arranged on the material moving The lifting cylinder (23) above the cylinder (22) and the pulling cylinder (24) arranged on the side of the discharging seat (21), the lifting cylinder (23) controls the moving cylinder (22) to move in the vertical direction, The pulling force cylinder (24) controls the material-moving cylinder (22) to move in the horizontal direction, and the lower end of the material-moving cylinder (22) is provided with a material-moving gripper (9) for gripping the injection-molded product (8); A grinding mechanism (3), the grinding mechanism (3) is arranged on the machine table (1) for grinding the injection-molded product (8), and the grinding mechanism (3) comprises A grinding device (31) and a polishing device (32) on the side of the table (1) away from the feeding rail (5), the grinding device (31) and the polishing device (32) close to one end of the feeding rail and fit the injection molding product (8) at the gate. 2 . The automatic grinding equipment for injection gate according to claim 1 , wherein the conveying assembly ( 4 ) comprises a plurality of material seats ( 41 ) which are slidably arranged on the feeding track ( 5 ). An annular towline (42) arranged on the inner side of the ring of the feeding track (5) and a plurality of gear plates (43) rotatably arranged on the inner side of the annular towline (42) along a vertical axis, the gear plates (43) ) is engaged with the inner side of the annular towline (42), and the end of the material seat (41) away from the feeding track (5) is arranged on the annular towline (42). 3. The injection gate automatic grinding equipment according to claim 2, wherein the material seat (41) comprises a base (411) slidingly arranged on the feeding track (5), a support seat (412) above the base (411), a sliding seat (413) disposed above the supporting seat (412), and a trough seat (414) slidably disposed on the sliding seat (413); The two groups of the sliding seats (413) are symmetrically arranged along the length direction of the support seat (412), the two groups of the material chute seats (414) are arranged between the opposite sides of the two groups of the sliding seats (413), and the two groups of material chute A discharge trough for placing the injection-molded product (8) is formed between the opposite sides of the seat (414), and a level is provided between the opposite sides of the two groups of the trough seats (414) and the side of the sliding seat (413). the clamping spring (11). 4. The injection gate automatic grinding equipment according to claim 3, characterized in that, a vertical guide post (12) is provided above the trough seat (414), and the guide post (12) rotates upwardly. A guide wheel (13) is provided, an expansion cylinder (15) is provided on the side of the trough seat (414), and a wedge block (14) is provided at one end of the expansion cylinder (15) close to the guide post (12). The opposite sides of the set of wedge-shaped blocks (14) fit against the outer peripheral surface of the guide wheel (13), and the expansion cylinder (15) controls the two sets of trough seats (414) to slide in a direction away from each other. 5. The injection gate automatic grinding equipment according to claim 4, wherein the grinding device (31) comprises a grinding motor (311) disposed on the side of the machine table (1) and a grinding motor (311) disposed on the grinding The milling cutter (312) at one end of the motor (311) close to the feeding rail (5), the end of the milling cutter (312) close to the feeding rail (5) is fitted to the gate of the injection molded product (8), and the grinding motor ( 311) Controlling the rotation of the milling cutter (312); a plurality of pressing rollers (16) are arranged horizontally above the milling cutter (312), and the circumferential surface of the pressing roller (16) fits the injection molding product ( 8) at the top. 6. The injection gate automatic grinding equipment according to claim 5, wherein the polishing device (32) comprises a polishing motor (321) disposed on the side surface of the machine table (1) and a polishing motor (321) disposed on the polishing The motor (321) is close to the polishing grinding wheel (322) at one end of the feeding track (5). The outer peripheral surface of the polishing grinding wheel (322) is in contact with the gate of the injection molded product (8). The polishing motor (321) controls the The polishing wheel (322) rotates. 7. The injection gate automatic grinding equipment according to claim 6, characterized in that, a dust collecting hopper (17) is provided below the grinding mechanism (3), and a lower end of the dust collecting hopper (17) is provided with a dust collecting hopper (17). The exhaust fan (18) is provided with an air inlet and an air outlet, and the lower end of the dust collecting hopper (17) communicates with the air inlet of the exhaust fan (18). 8. The injection gate automatic grinding device according to claim 7, characterized in that a stopper mechanism (19) for limiting the position of the material seat (41) is provided downstream of the grinding mechanism (3), so The stopper mechanism (19) comprises an optical fiber sensor (191) arranged on the side of the feeding track (5), a limit cylinder (192) arranged on the side of the machine table (1), and a limit cylinder (192) arranged on the side of the machine table (1). (192) A limit block (193) at the upper end, a limit groove ( 25), the limit cylinder (192) controls the limit block (193) to be inserted into the limit slot (25). 9 . The injection gate automatic grinding device according to claim 8 , wherein a plurality of organ covers ( 30 ) are slidably arranged on the feeding track ( 5 ), and the organ covers ( 30 ) are arranged on two Between groups of adjacent material holders (41), the two ends of the organ cover (30) in the length direction are respectively connected to the opposite side surfaces of the two groups of adjacent material holders (41). 10. The injection gate automatic grinding equipment according to claim 9, characterized in that, a transparent protective cover (6) is provided on the machine table (1), the feeding mechanism (2), the grinding mechanism ( 3) and the conveying assembly (4) are arranged in the protective cover (6), and a safety grating (7) is arranged on the side of the protective cover (6) close to the feeding mechanism (2).

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