Blanking channel for plastic products

Abstract

The plastic product discharging channel comprises a curved barrel, the curved barrel is provided with a conveying belt in a matched mode, the conveying belt passes through openings in the two ends of the curved barrel and surrounds one side wall of the curved barrel, and an L-shaped limiting piece is arranged on the conveying belt; when the L-shaped limiting piece moving along with the conveying belt passes through the inner side wall of the straight barrel and moves downwards, the mechanical arm places the product in the vertical state into the opening in the top end of the curved barrel, and the bottom of the product falls into the L-shaped limiting piece. And the product descends, passes through the inner cavity of the curved cylinder and flows out from the bottom end opening of the curved cylinder. Compared with the prior art, after the manipulator adsorbs the product from the injection molding equipment, the manipulator ascends and then translates, so that the product can be released into the curved barrel and does not need to descend to the position above the conveying belt, the production efficiency is improved, and the production cost is reduced.

Description

Technical Field

[0001] The present invention relates to the field of production of plastic products, and in particular to equipment for producing plastic products. Background Art

[0002] The frame of the display is formed in the injection molding equipment, and the formed frame is in an upright state. After the mold is opened, the suction cup at the end of the robot arm absorbs the frame. The end of the robot arm is provided with a frame structure, which is hinged to the robot arm, and a cylinder is connected between the robot arm and the frame structure. The suction cups are distributed along the edge of the frame structure. After the mold is opened, the suction cups on the frame structure absorb the frame of the display, and at this time, the frame structure is also in an upright state.

[0003] There is a conveyor belt next to the injection molding equipment, and the end of the conveyor belt is the manual position. After the suction cup at the end of the robot sucks the frame of the display, it moves to the top of the conveyor belt and then descends. When it approaches the conveyor belt, the cylinder drives the frame structure to rotate 90 degrees, and the frame structure and the sucked frame are transformed into a horizontal state. After that, the suction cup releases the frame, and the frame falls on the conveyor belt. The frame moves to the manual position, and the worker packs the frame with a packaging bag.

[0004] In the above process, after the robot takes the frame from the injection molding equipment, it rises and then moves horizontally, crosses the fence of the injection molding equipment, and then descends to the top of the conveyor belt. The frame structure then rotates 90 degrees to become horizontal. After releasing the frame, it resets and takes the next frame from the injection molding equipment. In this way, the robot needs a long running time and running path during the unloading process, which is not conducive to improving production efficiency. Summary of the invention

[0005] The technical problem solved by the present invention is that the robot arm matched with the injection molding equipment requires a long running time and running path during the unloading process, and the execution end switches between the upright state and the horizontal state, which is not conducive to improving the production efficiency.

[0006] In order to solve the above technical problems, the present invention provides the following technical solutions: a discharge channel for plastic products comprises a curved cylinder, the cross-section of the curved cylinder is a rectangle, one end of the curved cylinder is opened upward, the other end of the curved cylinder is opened inclined downward, the top of the curved cylinder is a straight cylinder, the curved cylinder is equipped with a conveyor belt, the conveyor belt passes through the openings at both ends of the curved cylinder and surrounds one side wall of the curved cylinder, and an L-shaped limiter is provided on the conveyor belt; when the L-shaped limiter that moves with the conveyor belt passes through the inner side wall of the straight cylinder and moves downward, the robot places the product in an upright state into the top opening of the curved cylinder, and the bottom of the product falls into the L-shaped limiter.

[0007] The curved cylinder is supported by a support frame, and the bottom of the curved cylinder is located above the conveyor belt. After the robot absorbs the frame of the display from the injection molding equipment, it rises and then moves horizontally to the top of the curved cylinder. The robot releases the product, and the upright product enters the opening at the top of the curved cylinder and falls into the L-shaped stopper, which catches the product. The L-shaped stopper moves with the conveyor belt, and the product descends, passes through the inner cavity of the curved cylinder, and flows out from the opening at the bottom of the curved cylinder. At the opening at the bottom of the curved cylinder, the conveying direction of the conveyor belt changes 180 degrees, and the L-shaped stopper leaves the product. The product falls on the conveyor belt and is transported forward by the conveyor belt.

[0008] Compared with the prior art, after the robot absorbs the product from the injection molding equipment, it rises and then moves horizontally to release the product into the curved cylinder, without having to descend to the top of the conveyor belt, nor does it need to change the product from a vertical state to a horizontal state. Therefore, the present invention can simplify the structure of the robot, and the operation path and operation time of the robot are integrated, which is conducive to improving production efficiency and reducing production costs.

[0009] The curved cylinder includes an outer side wall and an inner ring side wall, the inner ring side wall is located obliquely above the outer side wall, the conveyor belt surrounds the inner ring side wall, and a plurality of pairs of L-shaped stoppers are arranged on the conveyor belt, each pair of L-shaped stoppers are arranged opposite to each other, and the distance between each pair of L-shaped stoppers is equal to the length of the product. Under the transmission of the conveyor belt, after one of the L-shaped stoppers in each pair of L-shaped stoppers enters the inner cavity of the curved cylinder from the top opening of the curved cylinder, the other L-shaped stopper is still outside the curved cylinder, so that the manipulator can place the upright product on the L-shaped stopper in the inner cavity of the curved cylinder. With the transmission of the conveyor belt, the other L-shaped stopper is at the top opening of the curved cylinder, and is matched with the top of the product in a flipping manner, and then enters the inner cavity of the curved cylinder. In this way, a pair of L-shaped stoppers restrict the product, so that the product flows in the curved cylinder with the conveyor belt.

[0010] Since the conveyor belt is arranged on the side wall of the inner ring, under the action of gravity, the product in the inner cavity of the curved cylinder will be separated from the conveyor belt but hooked by the L-shaped limiter, and the product is in a suspended state, which is conducive to heat dissipation of the product just out of the mold.

[0011] Any L-shaped limiter includes a first straight edge perpendicular to the conveyor belt and a second straight edge perpendicular to the first straight edge, and the distance between the second straight edge and the conveyor belt is greater than the thickness of the product. Since the product in the inner cavity of the curved cylinder will be separated from the conveyor belt but hooked by the L-shaped limiter, and the shape of the curved cylinder is a curve, if the distance between the second straight edge and the conveyor belt is equal to the thickness of the product, then the product will move closer to the conveyor belt, causing the product to be stuck and unable to pass through when passing through the bend of the curved cylinder. Therefore, the distance between the second straight edge of the L-shaped limiter and the conveyor belt needs to be greater than the thickness of the product so that the product can pass smoothly through the bend of the curved cylinder. Moreover, products away from the conveyor belt are more likely to dissipate heat.

[0012] A conveying roller bracket is provided on the inner side wall of the inner ring side wall, and at the openings at both ends of the curved cylinder on the inner ring side wall, a guide roller bracket is provided on the outer side wall of the inner ring side wall, a conveying roller is installed on the conveying roller bracket, a guide roller is installed on the guide roller bracket, a conveyor belt is wound around the conveying roller, and the guide roller presses the conveyor belt toward the outer side wall of the inner ring side wall, any conveying roller is connected to a motor, and the motor is installed on the outer side wall of the curved cylinder.

[0013] The conveying roller and the guide roller are arranged at the bending part of the curved cylinder, wherein the conveying roller is located in the inner cavity of the curved cylinder and the guide roller is located outside the curved cylinder. In addition to the conveying roller arranged at the bending part of the curved cylinder, the conveying roller is also arranged on the inner ring side wall at the openings at both ends of the curved cylinder.

[0014] As an improvement, an air inlet is provided on the side wall of the curved cylinder, an air duct is provided in the air inlet, and the air duct is connected to a fan. The fan injects air into the curved cylinder to cool the product. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The present invention will be further described below in conjunction with the accompanying drawings:

[0016] Figure 1 It is a schematic diagram of a material discharge channel for plastic products;

[0017] Figure 2 This is the main view of the feeding channel for plastic products;

[0018] Figure 3 It is a cross-sectional view of a feeding channel for plastic products;

[0019] Figure 4 It is a schematic diagram of a product 90 being placed into the top opening 12 of the curved cylinder and falling into the L-shaped stopper 30;

[0020] Figure 5 for Figure 4 A schematic diagram showing a product 90 being lowered and an L-shaped stopper 30 above the product 90 being turned over at the top of the product 90;

[0021] Figure 6 for Figure 5 Schematic diagram of the product 90 descending and passing through the bend of the curved cylinder 10.

[0022] Explanation of symbols in the figure:

[0023] 10. curved tube; 11. straight tube; 12. top opening of the curved tube; 13. outer side wall; 14. inner side wall; 15. air inlet; 16. support rod;

[0024] 20. Conveyor belt; 21. Conveyor roller bracket; 22. Guide roller bracket; 23. Conveyor roller; 24. Guide roller; 25. Motor;

[0025] 30. L-shaped stopper; 31. first straight edge; 32. second straight edge;

[0026] 90. Product. DETAILED DESCRIPTION

[0027] Combination Figure 1 , Figure 3 The unloading channel of the plastic product comprises a curved cylinder 10, the cross section of the curved cylinder is a rectangle, one end of the curved cylinder is opened upward, the other end of the curved cylinder is opened inclined downward, the top of the curved cylinder is a straight cylinder 11, the curved cylinder is equipped with a conveyor belt 20, the conveyor belt passes through the openings at both ends of the curved cylinder and surrounds one side wall of the curved cylinder, and an L-shaped limiter 30 is provided on the conveyor belt; when the L-shaped limiter moves with the conveyor belt and passes through the inner side wall of the straight cylinder and moves downward, the robot places the product in an upright state into the top opening 12 of the curved cylinder, and the bottom of the product falls into the L-shaped limiter.

[0028] The curved cylinder 10 includes an outer side wall 13 and an inner ring side wall 14, the inner ring side wall is located obliquely above the outer side wall, the conveyor belt 20 surrounds the inner ring side wall, and a plurality of pairs of L-shaped limit members 30 are provided on the conveyor belt, each pair of L-shaped limit members are arranged opposite to each other, and the distance between each pair of L-shaped limit members is equal to the length of the product.

[0029] Any L-shaped stopper 30 includes a first straight edge 31 perpendicular to the conveyor belt 20 and a second straight edge 32 perpendicular to the first straight edge. The distance between the second straight edge and the conveyor belt is greater than the thickness of the product.

[0030] A conveying roller bracket 21 is provided on the inner side wall of the inner ring side wall 14, and at the openings at both ends of the curved cylinder on the inner ring side wall, a guide roller bracket 22 is provided on the outer side wall of the inner ring side wall, a conveying roller 23 is installed on the conveying roller bracket, a guide roller 24 is installed on the guide roller bracket, a conveyor belt 20 is wound around the conveying roller, and the guide roller presses the conveyor belt toward the outer side wall of the inner ring side wall 14, a conveying roller is connected to a motor 25, and the motor is installed on the outer side wall of the curved cylinder 10.

[0031] The conveying roller 23 and the guide roller 24 are disposed at the bending portion of the curved tube 10 .

[0032] An air inlet 15 is provided on the side wall of the curved cylinder 10, and an air duct is provided in the air inlet, and the air duct is connected to the fan.

[0033] The bottom end of the curved cylinder 10 is located above the conveyor belt.

[0034] Support rods 16 are provided on both sides of the curved cylinder 10, and the support rods are connected to the support frame. The curved cylinder is supported by the support frame, and the bottom end of the curved cylinder 10 is located above the conveyor belt. After the robot absorbs the frame of the display from the injection molding equipment, it rises and then moves horizontally to the top of the curved cylinder 10. The robot releases the product, and the upright product enters the top opening 12 of the curved cylinder and falls into the L-shaped limiter 30, as shown in FIG. Figure 4 Specifically, under the transmission of the conveyor belt 20, after one of the L-shaped stoppers 30 in each pair of L-shaped stoppers enters the inner cavity of the curved cylinder through the top opening 12 of the curved cylinder, the other L-shaped stopper is still outside the curved cylinder. In this way, the robot can place the upright product on the L-shaped stopper 30 in the inner cavity of the curved cylinder 10. As the conveyor belt 20 is transmitted, the other L-shaped stopper is at the top opening 12 of the curved cylinder and is matched with the top of the product in a flipped manner, as shown in FIG. Figure 5 As shown, the product 90 enters the inner cavity of the curved cylinder 10. In this way, a pair of L-shaped stoppers restrict the product 90, so that the product flows in the curved cylinder 10 along with the conveyor belt 20.

[0035] The L-shaped stopper 30 moves with the conveyor belt 20, and the product 90 falls. Since the conveyor belt is set on the inner ring side wall 14, under the action of gravity, the product in the inner cavity of the curved cylinder 10 will be separated from the conveyor belt 20 but hooked by the L-shaped stopper 30, and the product is in a vacant state, which is conducive to the heat dissipation of the product just out of the mold. The distance between the second straight edge 32 of the L-shaped stopper and the conveyor belt 20 is greater than the thickness of the product, which can enable the product to pass smoothly through the bend of the curved cylinder 10, such as Figure 6 Moreover, the products far from the conveyor belt 20 are easier to dissipate heat. The fan injects air into the curved cylinder 10 through the air inlet 15 to cool the products.

[0036] After passing through the inner cavity of the curved cylinder 10, it flows out from the opening at the bottom end of the curved cylinder. At the opening at the bottom end of the curved cylinder, the conveying direction of the conveyor belt 20 changes 180 degrees, the L-shaped limiter 30 leaves the product, and the product falls on the conveyor belt and is transported forward by the conveyor belt.

[0037] The above contents are only preferred embodiments of the present invention. For ordinary technicians in this field, according to the concept of the present invention, there will be changes in the specific implementation methods and application scopes. The content of this specification should not be understood as limiting the present invention.

Claims

1. A material discharge channel for plastic products, comprising a curved tube (10), the cross section of the curved tube is rectangular, one end of the curved tube opens upward, the other end of the curved tube opens obliquely downward, and the top of the curved tube is a straight tube (11), characterized in that: The curved cylinder is equipped with a conveyor belt (20), which passes through the openings at both ends of the curved cylinder and surrounds a side wall of the curved cylinder. An L-shaped stopper (30) is provided on the conveyor belt. When the L-shaped stopper moves along with the conveyor belt and passes through the inner side wall of the straight cylinder and moves downward, the robot places the product in an upright state into the top opening (12) of the curved cylinder, and the bottom of the product falls into the L-shaped stopper.

2. The material discharge channel for plastic products according to claim 1, characterized in that: The curved cylinder (10) comprises an outer side wall (13) and an inner side wall (14), wherein the inner side wall is located obliquely above the outer side wall, and the conveyor belt (20) surrounds the inner side wall. A plurality of pairs of L-shaped stoppers (30) are provided on the conveyor belt, wherein each pair of L-shaped stoppers are arranged opposite to each other, and the distance between each pair of L-shaped stoppers is equal to the length of the product.

3. The material discharge channel for plastic products according to claim 2, characterized in that: Any L-shaped stopper (30) comprises a first straight edge (31) perpendicular to the conveyor belt (20) and a second straight edge (32) perpendicular to the first straight edge, and the distance between the second straight edge and the conveyor belt is greater than the thickness of the product.

4. The material discharge channel for plastic products according to claim 2, characterized in that: A conveying roller bracket (21) is provided on the inner side wall of the inner ring side wall (14) and at the openings at both ends of the curved cylinder. A guide roller bracket (22) is provided on the outer side wall of the inner ring side wall. A conveying roller (23) is installed on the conveying roller bracket. A guide roller (24) is installed on the guide roller bracket. A conveying belt (20) is wound around the conveying roller. The guide roller presses the conveying belt toward the outer side wall of the inner ring side wall (14). A conveying roller is connected to a motor (25) which is installed on the outer side wall of the curved cylinder (10).

5. The material discharge channel for plastic products according to claim 4, characterized in that: The conveying roller (23) and the guide roller (24) are arranged at the bending position of the curved cylinder (10).

6. The material discharge channel for plastic products according to claim 1, characterized in that: An air inlet (15) is arranged on the side wall of the curved cylinder (10), and an air duct is arranged in the air inlet, and the air duct is connected to the fan.

7. The material discharge channel for plastic products according to claim 1, characterized in that: The bottom end of the curved cylinder (10) is located above the conveyor belt.

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