Edge trimming device for a casting machine

Abstract

The utility model discloses a kind of edge trimmer of casting machine, including chassis, the middle of the chassis is provided with square column, the both ends of square column are fixedly connected with first rotating shaft, two first rotating shafts are rotatably connected with chassis, the outside of square column is slidably provided with two adjusting discs, the top end and bottom end of two adjusting discs are provided with first slot, the inside of each first slot is fixedly connected with first plugboard, first screw, which cooperates with first plugboard, is screw-connected on adjusting disc, the side end of first plugboard is fixedly connected with cutter, cutter is set to half-ring structure, two cutters on adjusting disc form a ring-shaped cutting knife, ensure the continuity of casting film trimming when rotating and exchanging square column and cutter, avoid the situation of interruption, ensure the effect of casting film trimming.

Description

Technical Field

[0001] This utility model relates to the field of cast film manufacturing technology, and more specifically, it relates to a trimming device for a cast film machine. Background Technology

[0002] Casting machines, also known as cast film machines, are a type of machine that produces non-stretched, non-oriented flat extrusion films by rapidly cooling melt casting. The plastic film prepared by the casting method is first plasticized and melted, and then extruded through a T-shaped forming die, and cast into a sheet onto the roller surface of a steadily rotating cooling roller. The film is cooled and shaped, and then wound up after being drawn, trimmed, and then formed into a finished film.

[0003] A search revealed that Chinese utility model patent application number CN201921238871.1 discloses a trimming device for a casting machine, including a base frame, a support rod on the base frame, with both ends of the support rod rotatably connected to the base frame, a cutter disc on the support rod, the cutter disc being sleeved on the support rod and fixedly connected to the support rod, multiple cutters being detachably connected to the cutter disc, and a fixing component on the base frame capable of locking the support rod.

[0004] In use, first loosen the four fixing bolts on each moving disc to separate the moving disc from the fixed disc. Then, attach a tool holder to each of the two openings on the fixed disc. Next, assemble the moving disc and the fixed disc and secure them with fixing bolts. Then, reinforce the two tool holders with two reinforcing bolts. Then, insert the two tools into the two tool holders respectively, secure them with fastening bolts, and cover the tools with tool sleeves. Then, rotate the rotating disc to drive the threaded rod to separate the threaded rod from the circular plate, thereby allowing the support rod to rotate freely. When using this device for edge trimming, rotate the support rod to align the tool with the edge of the diaphragm. The rotating disc drives the threaded rod to rotate, causing it to contact the circular plate and push it to move. This locks the circular plates at both ends of the support rod into the slots, thus fixing the support rod and preventing it from rotating. Loosen the fastening bolts and adjust the cutter height to the appropriate point, then tighten the fastening bolts to fix the cutter and begin cutting. When the cutter is damaged, rotate the rotating disc to separate the threaded rod from the circular plate. Rotate the support rod to rotate the cutter disc. When the intact cutter is aligned with the diaphragm, rotate the rotating disc to contact the threaded rod with the circular plate and fix the support rod. Then loosen the fastening bolts, remove the damaged cutter, and replace it with a good one for future use.

[0005] Because the cutting process involves trimming the edges of the cast film with the blades, and the blades on the upper side separate from the cast film while the support rod and blade disc rotate, the blades on the lower side have not yet rotated to the upper side. Therefore, the trimming of the cast film is intermittent during this process, which makes it difficult to continuously trim the edges of the cast film and affects the cutting effect. In addition, the fixed connection between the fixed plate and the support rod makes it difficult to adjust the distance between the two corresponding blades, and it is not convenient to trim the edges of cast films of different widths. Utility Model Content

[0006] (a) Technical problems to be solved In view of the problems existing in the prior art, the present invention provides an edge trimming device for a casting machine to solve the technical problems mentioned in the background art.

[0007] (II) Technical Solution To achieve the above objectives, this utility model provides the following technical solution: a trimming device for a casting machine, comprising a base frame, a square column in the middle of the base frame, and two first rotating shafts fixedly connected to both ends of the square column. The two first rotating shafts are rotatably connected to the base frame. Two adjusting discs are slidably arranged on the outside of the square column. The top and bottom ends of the two adjusting discs are provided with first slots. A first insert plate is fixedly connected inside each of the first slots. A first screw that mates with the first insert plate is threaded onto the adjusting disc. A cutter is fixedly connected to the side end of the first insert plate. The cutter is configured as a semi-circular structure. The two cutters on the adjusting disc form a circular cutting blade. When the square column and the cutter are rotated and interchanged, the continuity of the trimming of the casting film is ensured, and the interruption is avoided, thus ensuring the effect of trimming the casting film.

[0008] The present invention is further configured such that two through slots are symmetrically arranged on the square column, and an adjustment seat is fixedly connected inside the two adjustment discs. The two adjustment seats are slidably engaged with the two through slots respectively. A first screw is threadedly connected inside the two adjustment seats. The first screw is rotatably connected to the square column, which facilitates the adjustment of the distance between the cutters on the two adjustment discs and facilitates the edge trimming of cast films of different widths.

[0009] The present invention is further configured such that a second rotating shaft is fixedly connected to the side end of the first screw, the second rotating shaft is rotatably connected to the square post and the corresponding first rotating shaft, and a first rotating handle is fixedly connected to one end of the second rotating shaft extending outside the first rotating shaft, so as to facilitate the rotation of the first screw.

[0010] The present invention is further configured such that a second screw that mates with the first rotating shaft is threaded onto the first throttle, which facilitates the fixing of the first throttle, the second rotating shaft and the first screw.

[0011] The present invention is further configured such that a fixing ring is fixedly connected to the outside of the first rotating shaft located on the front side, a fixing seat is fixedly connected to the side end of the base frame, a sliding groove is provided at the end of the fixing seat near the fixing ring, a sliding plate is slidably arranged inside the sliding groove, a brake disc is detachably connected to the side end of the sliding plate, and a second screw is threadedly connected to the fixing seat, the side end of the second screw is rotatably connected to the side end of the sliding plate, which facilitates the fixing of the first rotating shaft and the square column.

[0012] The present invention is further configured such that a second throttle is fixedly connected to the side end of the second screw, so as to facilitate the rotation of the second screw.

[0013] The present invention is further configured such that a second slot is provided on the side end of the slide plate, a second insert plate is fixedly connected to the side end of the brake disc, the second insert plate is inserted into the interior of the second slot, and a third screw that cooperates with the second insert plate is threaded to the top end of the slide plate, so as to facilitate the disassembly and replacement of the brake disc.

[0014] The present invention is further configured such that a countersunk groove is provided at the top of the skateboard, and the screw head of the third screw is located inside the countersunk groove, so as to prevent the screw head of the third screw from protruding to the outside of the skateboard and affecting the sliding of the skateboard inside the groove.

[0015] (III) Beneficial Effects Compared with the prior art, the present invention provides a trimming device for a casting machine, which has the following advantages: 1. When it is necessary to replace the upper cutter, rotate the square column. The square column drives the two adjusting discs to rotate, so that the cutter located on the upper side rotates to the lower side. Since the two cutters are assembled into a ring-shaped cutting blade, the two cutters of the adjusting disc can continuously cut the edge of the cast film during the rotation of the adjusting disc, avoiding interruption and improving the edge cutting effect of the cast film.

[0016] 2. By rotating the two first screws, the two first screws rotate to make the adjusting seat slide inside the through groove. The adjusting seat drives the adjusting plate to move. According to the width of the cast film, the cutter on the adjusting plate is adjusted to a suitable position, and the distance between the cutters on the two adjusting plates is adjusted to facilitate the edge cutting of cast films of different widths.

[0017] 3. After stopping the rotation of the first shaft and the square column, rotate the second screw clockwise. The second screw drives the slide plate to move closer to the fixed ring, so that the side end of the brake disc abuts against the side end of the fixed ring, thereby fixing the fixed ring, the first shaft and the square column, improving the stability of the square column, the two adjusting discs and the cutter, and making it easier for people to replace the cutter below. Attached Figure Description

[0018] Figure 1This is a front structural diagram of a trimming device for a casting machine according to the present invention; Figure 2 This is a structural diagram showing the interaction of the central column, two first rotating shafts, first screw, adjusting plate, and adjusting seat of this utility model. Figure 3 This is a schematic diagram of the connection between the first insert plate and the cutter in this utility model; Figure 4 This is a structural diagram showing the connection between the fixing ring, fixing seat, sliding plate, and brake disc in this utility model; Figure 5 This is a structural diagram showing the cooperation of the sliding plate, the second insert plate, and the brake disc in this utility model.

[0019] In the diagram: 1. Base frame; 2. Square column; 3. First pivot; 4. Adjustment disc; 5. First slot; 6. First insert plate; 7. First screw; 8. Cutting tool; 9. Through slot; 10. Adjustment seat; 11. First screw; 12. Second pivot; 13. First throttle; 14. Second screw; 15. Fixing ring; 16. Fixing seat; 17. Slide groove; 18. Slide plate; 19. Brake disc; 20. Second screw; 21. Second throttle; 22. Second slot; 23. Second insert plate; 24. Third screw; 25. Countersunk groove. Detailed Implementation

[0020] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0021] It should be noted that, unless otherwise specified, all technical and scientific terms used in this application have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains.

[0022] In this utility model, unless otherwise stated, the orientations used, such as "up" and "down", usually refer to the direction shown in the accompanying drawings, or to the vertical, perpendicular, or gravitational direction; similarly, for ease of understanding and description, "left" and "right" usually refer to the left and right shown in the accompanying drawings; "inner" and "outer" refer to the inner and outer contours of each component itself, but the above directional terms are not used to limit this utility model.

[0023] Please see Figures 1-5A trimming device for a casting machine includes a base frame 1, a square column 2 in the middle of the base frame 1, and two first rotating shafts 3 fixedly connected to both ends of the square column 2. The two first rotating shafts 3 are rotatably connected to the base frame 1. Two adjusting discs 4 are slidably arranged on the outside of the square column 2. The top and bottom ends of the two adjusting discs 4 are provided with first slots 5. The inside of each first slot 5 is fixedly connected with a first insert plate 6. The adjusting discs 4 are threaded with first screws 7 that cooperate with the first insert plates 6. The side ends of the first insert plates 6 are fixedly connected with cutters 8. The cutters 8 are set with a semi-circular structure. The two cutters 8 on the adjusting discs 4 form a ring-shaped cutting blade.

[0024] Specifically, when it is necessary to replace the upper blade 8, rotate the square column 2. The square column 2 drives the two adjusting discs 4 to rotate, so that the upper blade 8 rotates to the lower side. Since the two blades 8 are assembled into a ring-shaped cutting blade, during the rotation of the adjusting disc 4, the two blades 8 of the adjusting disc 4 can continuously cut the edge of the cast film, avoiding interruption and improving the cutting effect of the cast film. Since the blade 8 is fixed by inserting the first insert plate 6 into the first slot 5 and tightening the first screw 7, it is easy to disassemble and replace the blade 8.

[0025] Please see Figure 1 and Figure 2 Two through slots 9 are symmetrically arranged on the square column 2. An adjustment seat 10 is fixedly connected inside each of the two adjustment discs 4. The two adjustment seats 10 are slidably engaged with the two through slots 9 respectively. A first screw 11 is threadedly connected inside each of the two adjustment seats 10. The first screw 11 is rotatably connected to the square column 2, which facilitates the adjustment of the distance between the cutters 8 on the two adjustment discs 4, and facilitates the edge cutting of cast films of different widths. A second rotating shaft 12 is fixedly connected to the side end of the first screw 11. The second rotating shaft 12 is rotatably connected to the square column 2 and the corresponding first rotating shaft 3. A first handle 13 is fixedly connected to the end of the second rotating shaft 12 that extends outside the first rotating shaft 3, which facilitates the rotation of the first screw 11. A second screw 14 that mates with the first rotating shaft 3 is threadedly connected to the first handle 13. By tightening the second screw 14, the side end of the second screw 14 abuts against the side end of the first rotating shaft 3, which facilitates the fixation of the first handle 13, the second rotating shaft 12 and the first screw 11.

[0026] Specifically, by rotating the two first screws 11, the two first screws 11 rotate to make the adjusting seat 10 slide inside the through groove 9. The adjusting seat 10 drives the adjusting plate 4 to move. According to the width of the cast film, the cutter 8 on the adjusting plate 4 is adjusted to a suitable position, and the distance between the cutters 8 on the two adjusting plates 4 is adjusted to facilitate the edge cutting of cast films of different widths.

[0027] Please see Figure 1 , Figure 4 and Figure 5 A retaining ring 15 is fixedly connected to the outside of the first rotating shaft 3 located on the front side. A retaining seat 16 is fixedly connected to the side end of the base frame 1. A groove 17 is provided at the end of the retaining seat 16 near the retaining ring 15. A sliding plate 18 is slidably arranged inside the groove 17. A brake disc 19 is detachably connected to the side end of the sliding plate 18. A second slot 22 is provided at the side end of the sliding plate 18. A second insert 23 is fixedly connected to the side end of the brake disc 19. The second insert 23 is inserted into the interior of the second slot 22. The top of the sliding plate 18 is threadedly connected to the second insert 23. The third screw 24 is used to facilitate the disassembly and replacement of the brake disc 19. The top of the slide plate 18 is provided with a countersunk groove 25. The screw head of the third screw 24 is located inside the countersunk groove 25 to prevent the screw head of the third screw 24 from protruding to the outside of the slide plate 18 and affecting the sliding of the slide plate 18 inside the slide groove 17. The fixing base 16 is threadedly connected to the second screw 20. The side end of the second screw 20 is rotatably connected to the side end of the slide plate 18. The side end of the second screw 20 is fixedly connected to the second handle 21 to facilitate the rotation of the second screw 20.

[0028] Specifically, after stopping the rotation of the first rotating shaft 3 and the square column 2, the second screw 20 is rotated clockwise. The second screw 20 drives the slide plate 18 to move closer to the fixed ring 15, so that the side end of the brake disc 19 abuts against the side end of the fixed ring 15, thereby fixing the fixed ring 15, the first rotating shaft 3 and the square column 2, improving the stability of the square column 2, the two adjusting discs 4 and the cutter 8, and making it easier for people to replace the cutter 8 below.

[0029] In summary, when using the overall equipment: When the upper cutter 8 needs to be replaced, rotate the second screw 20 counterclockwise. The second screw 20 will move the slide plate 18 and brake disc 19 away from the fixing ring 15, separating the brake disc 19 from the fixing ring 15. Then rotate the square column 2, which will rotate the two adjusting discs 4, causing the upper cutter 8 to rotate to the lower side. Then rotate the second screw 20 clockwise, which will move the slide plate 18 closer to the fixing ring 15, causing the side end of the brake disc 19 to abut against the side end of the fixing ring 15, thus securing the fixing ring 15, the first rotating shaft 3, and the square column 2. Then loosen the first screw 7 located under the adjusting disc 4, and then remove the lower cutter 8. Remove the first insert plate 6 from the new tool 8 and insert it into the first slot 5. Then tighten the first screw 7 to fix the first insert plate 6. When it is necessary to adjust the position of the adjusting seat 10 and the tool 8, loosen the second screw 14. Then, drive the second rotating shaft 12 and the first screw 11 to rotate through the first throttle 13. The rotation of the first screw 11 causes the adjusting seat 10 to slide inside the through slot 9. The adjusting seat 10 drives the adjusting plate 4 and the tool 8 to move. After adjusting the tool 8 to the appropriate position, tighten the second screw 14 so that the side end of the second screw 14 abuts against the side end of the first rotating shaft 3 to fix the first throttle 13, the second rotating shaft 12 and the first screw 11.

[0030] Of all the solutions mentioned above, those involving the connection between two components can be selected according to the actual situation, such as welding, bolt and nut connection, bolt or screw connection, or other known connection methods, which will not be elaborated here. For all the fixed connections mentioned above, welding is preferred. Although embodiments of this utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of this utility model. The scope of this utility model is defined by the appended claims and their equivalents.

Claims

1. A trimming device for a casting machine, comprising a base frame (1), characterized in that: A square column (2) is provided in the middle of the base frame (1). Both ends of the square column (2) are fixedly connected to a first rotating shaft (3). Both first rotating shafts (3) are rotatably connected to the base frame (1). Two adjusting discs (4) are slidably provided on the outside of the square column (2). The top and bottom ends of the two adjusting discs (4) are provided with first slots (5). A first insert plate (6) is fixedly connected inside each first slot (5). A first screw (7) that cooperates with the first insert plate (6) is threaded on the adjusting disc (4). A cutter (8) is fixedly connected to the side end of the first insert plate (6). The cutter (8) is set as a semi-circular structure. The two cutters (8) on the adjusting disc (4) form a ring-shaped cutting blade.

2. The edge trimming device for a casting machine according to claim 1, characterized in that: Two through slots (9) are symmetrically arranged on the square column (2). An adjustment seat (10) is fixedly connected inside the two adjustment discs (4). The two adjustment seats (10) are slidably engaged with the two through slots (9) respectively. A first screw (11) is threadedly connected inside the two adjustment seats (10). The first screw (11) is rotatably connected to the square column (2).

3. The edge trimming device for a casting machine according to claim 2, characterized in that: The first screw (11) is fixedly connected to a second rotating shaft (12) at its side end. The second rotating shaft (12) is rotatably connected to the square column (2) and the corresponding first rotating shaft (3). The end of the second rotating shaft (12) extending to the outside of the first rotating shaft (3) is fixedly connected to a first throttle (13).

4. The edge trimming device for a casting machine according to claim 3, characterized in that: The first throttle (13) is threaded with a second screw (14) that mates with the first shaft (3).

5. The edge trimming device for a casting machine according to claim 1, characterized in that: A fixing ring (15) is fixedly connected to the outside of the first rotating shaft (3) located on the front side. A fixing seat (16) is fixedly connected to the side end of the base frame (1). A sliding groove (17) is provided at one end of the fixing seat (16) near the fixing ring (15). A sliding plate (18) is slidably arranged inside the sliding groove (17). A brake disc (19) is detachably connected to the side end of the sliding plate (18). A second screw (20) is threadedly connected to the fixing seat (16). The side end of the second screw (20) is rotatably connected to the side end of the sliding plate (18).

6. The edge trimming device for a casting machine according to claim 5, characterized in that: The second screw (20) is fixedly connected to a second throttle (21) at its side end.

7. The edge trimming device for a casting machine according to claim 5, characterized in that: The side end of the slide plate (18) is provided with a second slot (22), and the side end of the brake disc (19) is fixedly connected with a second insert plate (23). The second insert plate (23) is inserted into the interior of the second slot (22), and the top end of the slide plate (18) is threadedly connected with a third screw (24) that cooperates with the second insert plate (23).

8. The edge trimming device for a casting machine according to claim 7, characterized in that: The top of the slide plate (18) is provided with a countersunk groove (25), and the screw head of the third screw (24) is located inside the countersunk groove (25).

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