An automatic material feeding structure for water cutters

Abstract

This utility model discloses an automatic sprue unloading structure, including a cutting structure and an unloading conveyor line disposed below the cutting structure; the cutting structure includes a cutting platform, a support block slidably disposed at one end of the cutting platform, a cutting block fixedly disposed at the other end of the cutting platform, and a driving unit for driving the support block away from or closer to the cutting block; the sprue has a connecting section connected to the outer periphery of the workpiece, the cutting block is disposed directly opposite the connecting section, the support block supports the workpiece close to the cutting block to cut off the sprue of the workpiece, and a discharge chute is formed between the support block and the cutting block, the discharge chute being located above the unloading conveyor line.

Description

Technical Field

[0001] This utility model relates to the field of automation equipment technology, specifically to an automatic material feeding structure for a water cutter. Background Technology

[0002] In the plastics industry, especially in production using injection molding, after a product is formed in a mold, it will have excess sprue and gating system attached to it. These excess parts connected to the product body are usually called "gates". The process of removing sprues, or "gate trimming", is one of the key steps in subsequent finishing and obtaining the final product.

[0003] Currently, the industry still heavily relies on manual labor for the treatment of sprue marks in injection molded parts. Operators use hand tools (such as diagonal pliers and scissors) to identify, locate, and cut off the sprue marks based on experience. This not only results in low production efficiency but also places excessive labor intensity on employees. Furthermore, because it relies entirely on the subjective judgment and manual operation of workers, it is difficult to maintain uniformity in the height, flatness, and appearance of the cut edges of the sprue marks. Utility Model Content

[0004] To address the technical problems existing in the background art, this utility model proposes an automatic material feeding structure for sprue cutting.

[0005] The technical solution adopted by this utility model to solve its technical problem is as follows: An automatic material feeding structure for sprue cutting includes a cutting structure and a feeding conveyor line disposed below the cutting structure; The cutting structure includes a cutting platform, a support block slidably disposed at one end of the cutting platform, a cutting block fixedly disposed at the other end of the cutting platform, and a driving unit for driving the support block away from or close to the cutting block. The sprue has a connecting section connected to the outer periphery of the workpiece. The cutting block is disposed directly opposite the connecting section. The support block supports the workpiece close to the cutting block to cut off the sprue of the workpiece. A discharge chute is formed between the support block and the cutting block. The discharge chute is located above the unloading conveyor line.

[0006] Preferably, the support block is provided with a positioning protrusion, and the positioning protrusion forms a first positioning groove. The first positioning groove fits against the outer periphery of the workpiece. With the above improvement, when the injection-molded workpiece is placed on the positioning protrusion, the outer periphery of the positioning protrusion is placed into the first positioning groove, and the first positioning groove fits against the outer periphery of the workpiece, thereby ensuring the stability of the workpiece during placement and movement.

[0007] Preferably, the cutting block includes a positioning body and cutting slices disposed on both sides of the positioning body, and the positioning body has a second positioning groove. When the workpiece is cut to remove the sprue, the second positioning groove fits against the outer periphery of the workpiece. With the above improvements, when the support block moves toward the cutting block under the action of the driving unit, the workpiece will be placed into the second positioning groove, and the sprue will be cut off under the action of the cutting slices, thereby ensuring the stability of the workpiece during the sprue removal process.

[0008] Preferably, the cutting slices are spaced apart on the side of the positioning body, and sliding limit blocks are slidably arranged between the cutting slices. A third positioning groove is formed on the sliding limit block. When the workpiece is cut off the sprue, the third positioning groove fits against the outer periphery of the workpiece. Through the above improvements, before the workpiece is cut off the sprue, the third positioning groove on the sliding limit block can limit the workpiece, thereby further improving the stability of the workpiece during the movement process.

[0009] Preferably, a sliding rod is inserted into the cutting platform, the sliding rod is connected to a sliding limiting block, and an elastic element is sleeved on the sliding rod. One end of the elastic element abuts against the cutting platform, and the other end abuts against the sliding rod, so that the sliding limiting block always has a tendency to slide towards the workpiece. Through the above improvements, when the workpiece is transported to the position, the sliding limiting block abuts against the workpiece under the action of the elastic element, completing the limiting and realizing flexible clamping of the workpiece. It can effectively limit the workpiece and adapt to the small dimensional tolerances of the workpiece, avoiding rigid impact damage to the workpiece surface. After the sprue is cut, the sprue will fall onto the unloading conveyor line under the action of the sliding limiting block.

[0010] Preferably, the support block has a limiting groove for the bottom of the workpiece to be inserted. Through the above improvements, the stability of the workpiece during placement and transportation is further enhanced.

[0011] Preferably, the cutting platform is provided with a pushing structure, which includes a pushing plate, a pushing rod on the pushing plate, and a pushing unit for driving the pushing plate to move. The pushing rod is arranged opposite to the workpiece. With the above improvements, after the sprue is removed, the pushing unit can drive the pushing plate to move, so that the pushing rod pushes the workpiece out of the support plate. The workpiece falls from the drop chute onto the unloading conveyor line, realizing automatic unloading of the workpiece.

[0012] Preferably, the push rod includes a first push rod and a second push rod, and the first push rod and the second push rod are arranged at intervals along the height direction of the workpiece. Through the above improvements, the first push rod and the second push rod push the workpiece from multiple angles, avoiding the workpiece from tilting and getting stuck on the support block during the discharge process, thus ensuring the stability of the workpiece discharge.

[0013] Preferably, the cutting platform is provided with a slider module, and the support block is disposed on the slider module. Through the above improvements, the smoothness of the support block during the sliding process is further enhanced.

[0014] Preferably, a transfer structure is provided above the cutting structure. The transfer structure includes a clamping module and a moving module that drives the clamping module to move in multiple axes. The clamping module includes a mounting plate, a first clamping unit fixedly mounted on the mounting plate, and a second clamping unit slidably mounted on the mounting plate. A pulling unit is provided on the first clamping unit, and a connecting plate is provided on the second clamping unit. The actuating end of the pulling unit is connected to the connecting plate. The pulling unit moves to bring the first clamping unit and the second clamping unit closer together or further apart. Through the above improvements, the distance between the first clamping unit and the second clamping unit can be controlled by the pulling unit, thereby clamping the workpiece before injection molding and the workpiece after injection molding. The cut-off sprue can also be clamped by the first clamping unit and the second clamping unit.

[0015] Compared with the prior art, the present invention has the following advantages and beneficial effects: The workpiece is transported by a support block, which moves the workpiece close to the cutting block. The cutting block then removes the sprue from the workpiece. After the sprue is removed, the support block moves away from the cutting block, and the cut workpiece can fall into the unloading conveyor line through the drop chute for automatic unloading. Compared with manual sprue cutting, the production efficiency is greatly improved, and the height, flatness, and appearance of the sprue residue and the cut edge are more uniform and aesthetically pleasing. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram of the cutting structure and the material conveying line of this utility model; Figure 3 This is a schematic diagram of the cutting structure of this utility model; Figure 4 This is a structural schematic diagram of an embodiment of the support block of this utility model; Figure 5 This is a structural schematic diagram of an embodiment of the cutting block of this utility model; Figure 6 This is a schematic diagram of the transfer structure of this utility model; Figure 7 This is a schematic diagram of the clamping module of this utility model; In the diagram: 1. Cutting structure; 2. Material conveyor line; 3. Transfer structure; 4. Workpiece; 1.1. Cutting platform; 1.2. Support block; 1.3. Cutting block; 1.4. Drive unit; 1.5. Material drop chute; 2.1. Positioning protrusion; 2.2. First positioning groove; 2.3. Positioning body; 2.4. Cutting slice; 2.5. Second positioning groove; 2.6. Sliding limit block; 2.7. Third positioning groove; 3.1. Sliding rod 3.2 Elastic element; 3.3 Limiting slot; 4.1 Pushing structure; 4.2 Pushing plate; 4.3 Pushing rod; 4.4 Pushing unit; 5.1 First push rod; 5.2 Second push rod; 5.3 Slider module; 6.1 Clamping module; 6.2 Moving module; 7.1 Mounting plate; 7.2 First clamping unit; 7.3 Second clamping unit; 7.4 Pulling unit; 7.5 Connecting plate; Detailed Implementation

[0017] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0018] It should be understood that although the terms upper, middle, lower, top, one end, etc., appear in this document to describe various elements, these elements are not limited by these terms. These terms are only used to distinguish the elements from each other for ease of understanding, and are not used to define any directional or sequential restrictions.

[0019] like Figure 1-7 As shown, an automatic material feeding structure for sprue cutting includes a cutting structure 1 and a material feeding conveyor line 2 disposed below the cutting structure 1. Specifically, the cutting structure 1 includes a cutting platform 1.1, a support block 1.2 slidably disposed at one end of the cutting platform 1.1, a cutting block 1.3 fixedly disposed at the other end of the cutting platform 1.1, and a driving unit 1.4 for driving the support block 1.2 away from or near the cutting block 1.3. The sprue has a connecting section connected to the outer periphery of the workpiece 4. The cutting block 1.3 is disposed directly opposite the connecting section. The support block 1.2 supports the workpiece 4 and moves it close to the cutting block 1.3 to cut off the sprue of the workpiece 4. The support block 1.2 and the cutting block 1.3 form a discharge chute 1.5. The workpiece 4 in the discharge chute is located above the unloading conveyor line 2.

[0020] The workpiece is transported by the support block 1.2, which moves the workpiece 4 closer to the cutting block 1.3. When the support block 1.2 and the cutting block 1.3 come together, the cutting block 1.3 will cut off the sprue on the workpiece. After the sprue is cut off, the support block 1.2 moves away from the cutting block 1.3. The cut workpiece 4 can fall into the unloading conveyor line 2 through the drop chute 1.5 for automatic unloading. Compared with manual sprue cutting, the production efficiency is greatly improved, and the height, flatness and appearance of the sprue residue and the cut edge are more uniform and beautiful after cutting.

[0021] like Figures 3 to 5 As shown, as a further explanation of the embodiment of the support block 1.2, the support block 1.2 is provided with a positioning protrusion 2.1, and the positioning protrusion 2.1 forms a first positioning groove 2.2. The first positioning groove 2.2 fits against the outer periphery of the workpiece. When the injection-molded workpiece is placed on the positioning protrusion 2.1, the outer periphery of the positioning protrusion 2.1 is placed into the first positioning groove 2.2, and the first positioning groove 2.2 fits against the outer periphery of the workpiece, thereby ensuring the stability of the workpiece during placement and movement.

[0022] Furthermore, the support block 1.2 is provided with a limiting groove 3.3 for the bottom of the workpiece 4 to be inserted. The bottom of the workpiece has a protrusion that is inserted into the limiting groove 3.3, thereby further improving the stability of the workpiece during placement and transportation.

[0023] Preferably, the cutting platform 1.1 is provided with a slider module 5.3, and the support block 1.2 is provided on the slider module 5.3. The slider module 5.3 includes a guide rod and a slider that is slidably provided on the guide rod. The support block 1.2 is connected to the slider, which further improves the smoothness of the support block 1.2 during the sliding process.

[0024] As a further explanation of the specific structure of the cutting block 1.3, the cutting block 1.3 includes a positioning body 2.3 and cutting slices 2.4 disposed on both sides of the positioning body 2.3, and a second positioning groove 2.5 is formed on the positioning body 2.3.

[0025] When the support block 1.2 moves toward the cutting block 1.3 under the action of the drive unit 1.4, the workpiece 4 will be placed into the second positioning groove 2.5 when the workpiece is cut off. The second positioning groove 2.5 fits against the outer periphery of the workpiece, and the sprue will be cut off under the action of the cutting blade 2.4. The workpiece is positioned by the first positioning groove 2.2 and the second positioning groove 2.5, thereby ensuring the stability of the workpiece during the sprue removal process.

[0026] Specifically, the cutting slices 2.4 are spaced apart on the side of the positioning body 2.3, and sliding limit blocks 2.6 are slidably arranged between the cutting slices 2.4. The cutting slices 2.4 limit the sliding limit blocks 2.6 to ensure the stability of the sliding limit blocks 2.6 during the sliding process.

[0027] Furthermore, the sliding limit block 2.6 has a third positioning groove 2.7. When the workpiece 4 is cut off the sprue, the third positioning groove 2.7 fits against the outer periphery of the workpiece. The third positioning groove 2.7 on the sliding limit block 2.6 can limit the workpiece, thereby further improving the stability of the workpiece during the movement process.

[0028] In addition, a sliding rod 3.1 is inserted on the cutting platform 1.1. The sliding rod 3.1 is connected to the sliding limit block 2.6. An elastic element 3.2 is sleeved on the sliding rod 3.1. One end of the elastic element 3.2 abuts against the cutting platform 1.1, and the other end abuts against the sliding rod 3.1, so that the sliding limit block 2.6 always has a tendency to slide towards the workpiece.

[0029] Once the workpiece is in place, the sliding limit block 2.6, under the action of the elastic element 3.2, abuts against the workpiece 4 and the sprue, completing the limit and achieving flexible clamping of the workpiece. This effectively limits the workpiece and can accommodate the small dimensional tolerances of the workpiece, avoiding rigid impact damage to the workpiece surface.

[0030] In addition, after the sprue is cut, the support block 1.2 will drive the workpiece to reset. After the sliding limit block 2.6 is released from the workpiece, it will reset under the action of the elastic element 3.2. During the reset process, since the sprue has been cut off, the sliding limit block 2.6 can push the sprue into the discharge trough 1.5 to realize the discharge of the sprue.

[0031] like Figure 3 , Figure 4 As shown, a further explanation of the workpiece unloading implementation method is provided. A pushing structure 4.1 is provided on the cutting platform 1.1. The pushing structure 4.1 includes a pushing plate 4.2, a pushing rod 4.3 on the pushing plate 4.2, and a pushing unit 4.4 that drives the pushing plate 4.2 to move. The pushing rod 4.3 is set opposite to the workpiece. After the sprue is removed, the pushing unit 4.4 can drive the pushing plate 4.2 to move, so that the pushing rod 4.3 pushes the workpiece out of the support plate. The workpiece falls from the drop chute 1.5 onto the unloading conveyor line 2, realizing automatic unloading of the workpiece.

[0032] Specifically, the push rod 4.3 includes a first push rod 5.1 and a second push rod 5.2, and the first push rod 5.1 and the second push rod 5.2 are arranged at intervals along the height direction of the workpiece. The first push rod 5.1 and the second push rod 5.2 push the workpiece from multiple angles to prevent the workpiece from tilting and getting stuck on the support block 1.2 during the discharge process, thus ensuring the stability of the workpiece discharge.

[0033] like Figure 6 , Figure 7 As shown, in some other embodiments, a transfer structure 3 is provided above the cutting structure 1. The transfer structure 3 includes a clamping module 6.1 and a moving module 6.2 that drives the clamping module 6.1 to move in multiple axes. The clamping module 6.1 includes a mounting plate 7.1, a first clamping unit 7.2 fixedly mounted on the mounting plate 7.1, and a second clamping unit 7.3 slidably mounted on the mounting plate 7.1. A pulling unit 7.4 is provided on the first clamping unit 7.2, and a connecting plate 7.5 is provided on the second clamping unit 7.3. The actuating end of the pulling unit 7.4 is connected to the connecting plate 7.5. The pulling unit 7.4 moves to bring the first clamping unit 7.2 and the second clamping unit 7.3 closer together or further apart. The distance between the first clamping unit 7.2 and the second clamping unit 7.3 can be controlled by the pulling unit 7.4 to clamp the workpiece before injection molding and the workpiece after injection molding, thereby realizing automatic workpiece loading and transfer.

[0034] This specific embodiment is merely an explanation of the present utility model and is not intended to limit the present utility model. After reading this specification, those skilled in the art can make modifications to this embodiment without contributing any inventive step, but as long as they are within the scope of the claims of the present utility model, they are protected by patent law.

Claims

1. An automatic material feeding structure for sprue cutting, characterized in that, It includes a cutting structure (1) and a feeding conveyor line (2) located below the cutting structure (1); The cutting structure (1) includes a cutting platform (1.1), a support block (1.2) slidably disposed at one end of the cutting platform (1.1), a cutting block (1.3) fixedly disposed at the other end of the cutting platform (1.1), and a driving unit (1.4) for driving the support block (1.2) away from or close to the cutting block (1.3). The sprue has a connecting section connected to the outer periphery of the workpiece (4). The cutting block (1.3) is disposed directly opposite the connecting section. The support block (1.2) supports the workpiece (4) close to the cutting block (1.3) to cut off the sprue of the workpiece (4). The support block (1.2) and the cutting block (1.3) form a discharge chute (1.5). The discharge chute (1.5) is located above the unloading conveyor line (2).

2. The automatic sprue feeding structure according to claim 1, characterized in that: The support block (1.2) is provided with a positioning protrusion (2.1), and the positioning protrusion (2.1) forms a first positioning groove (2.2), which fits against the outer periphery of the workpiece (4).

3. The automatic sprue feeding structure according to claim 1, characterized in that: The cutting block (1.3) includes a positioning body (2.3) and cutting slices (2.4) disposed on both sides of the positioning body (2.3). A second positioning groove (2.5) is formed on the positioning body (2.3). When the workpiece (4) is cut to remove the sprue, the second positioning groove (2.5) fits against the outer periphery of the workpiece (4).

4. The automatic sprue feeding structure according to claim 3, characterized in that: The cutting slices (2.4) are spaced apart on the side of the positioning body (2.3), and sliding limit blocks (2.6) are slidably arranged between the cutting slices (2.4). A third positioning groove (2.7) is formed on the sliding limit block (2.6). When the workpiece (4) is cut off the sprue, the third positioning groove (2.7) fits against the outer periphery of the workpiece (4).

5. The automatic material feeding structure for sprue cutting according to claim 4, characterized in that: A sliding rod (3.1) is inserted into the cutting platform (1.1). The sliding rod (3.1) is connected to a sliding limit block (2.6). An elastic element (3.2) is sleeved on the sliding rod (3.1). One end of the elastic element (3.2) abuts against the cutting platform (1.1), and the other end abuts against the sliding rod (3.1), so that the sliding limit block (2.6) always has a tendency to slide towards the workpiece (4).

6. The automatic sprue feeding structure according to claim 1, characterized in that: The support block (1.2) has a limiting groove (3.3) for the bottom of the workpiece (4) to be inserted.

7. The automatic sprue feeding structure according to claim 1, characterized in that: The cutting platform (1.1) is provided with a pusher structure (4.1), which includes a pusher plate (4.2), a pusher rod (4.3) on the pusher plate (4.2), and a pusher unit (4.4) for driving the pusher plate (4.2) to move. The pusher rod (4.3) is arranged opposite to the workpiece (4).

8. The automatic sprue feeding structure according to claim 7, characterized in that: The push rod (4.3) includes a first push rod (5.1) and a second push rod (5.2), and the first push rod (5.1) and the second push rod (5.2) are arranged at intervals along the height direction of the workpiece (4).

9. The automatic sprue feeding structure according to claim 1, characterized in that: The cutting platform (1.1) is provided with a slider module (5.3), and the support block (1.2) is provided on the slider module (5.3).

10. The automatic sprue feeding structure according to claim 1, characterized in that: A transfer structure (3) is provided above the cutting structure (1). The transfer structure (3) includes a clamping module (6.1) and a moving module (6.2) for driving the clamping module (6.1) to move in multiple axes. The clamping module (6.1) includes a mounting plate (7.1), a first clamping unit (7.2) fixedly mounted on the mounting plate (7.1), and a second clamping unit (7.3) slidably mounted on the mounting plate (7.1). A pulling unit (7.4) is provided on the first clamping unit (7.2), and a connecting plate (7.5) is provided on the second clamping unit (7.3). The actuating end of the pulling unit (7.4) is connected to the connecting plate (7.5). The pulling unit (7.4) moves to make the first clamping unit (7.2) and the second clamping unit (7.3) move closer or further apart.

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