Rubber cutting machine with safety guard

Abstract

The application discloses a rubber cutting machine with a safety protection device, which comprises a rack, a workbench and a hydraulic system. A main shaft is fixedly installed on the rack through a bearing seat, and a rotatable cutter head is arranged on the main shaft. A blade protection cover is arranged on the outer side of the cutter head. A guide rod is arranged on the rack, a sliding sleeve is sleeved on the guide rod, and the workbench is fixed on the sliding sleeve. A rubber stopping frame is arranged on one end of the workbench. The hydraulic system is connected with the workbench and drives the workbench to make reciprocating linear motion along the guide rod. A protection cover bearing seat is movably arranged on the outer side of the main shaft, and the blade protection cover is fixed on the protection cover bearing seat. An arc-shaped protection cover rack is fixedly connected to the outer side of the blade protection cover. The center of the arc-shaped protection cover rack is coincident with the center of the cutter head. A protection cover gear is arranged corresponding to the arc-shaped protection cover rack, and the protection cover gear is driven to rotate by an arc-shaped protection cover rack driving motor. The blade protection cover can be opened upward or closed downward, thereby achieving the purpose of protecting the cutter head.

Description

Technical Field

[0001] This invention relates to the field of rubber processing technology, and in particular to a rubber cutting machine with a safety protection device. Background Technology

[0002] A rubber cutter is a processing device for rubber, which cuts blocks of natural or synthetic rubber into smaller blocks that are easier to process.

[0003] Existing disc-type rubber cutters require workers to place and remove rubber blocks from the worktable during operation. This often leads to accidents due to improper operation or operator negligence, posing a significant safety hazard. Furthermore, although existing disc-type rubber cutters have blade guards on the outside of the cutter head, these guards offer some protection, but their constantly open / closed nature limits their effectiveness. When the rubber cutting is complete and the worktable returns to its original position, the rotating cutter head still poses a considerable safety threat to the worker as they place rubber blocks again. Summary of the Invention

[0004] The technical problem to be solved by the present invention is to provide a rubber cutting machine with a safety protection device, which solves the problem of limited protection of the blade guard of the existing disc rubber cutting machine and can play a role in fully protecting the workers.

[0005] To solve the above-mentioned technical problems, the technical solution of the present invention is as follows:

[0006] A rubber cutting machine with a safety protection device includes a frame, a worktable, a hydraulic system, a guide rod, a sliding sleeve, a rubber stop, a cutter head, and a blade guard. A main shaft is fixedly mounted on the frame via a bearing seat. A rotatable cutter head is mounted on the main shaft, and a blade guard is provided on the outer side of the cutter head. A guide rod is mounted on the frame, and a sliding sleeve is fitted onto the guide rod. The worktable is fixed to the sliding sleeve, and a rubber stop is provided at one end of the worktable. The hydraulic system is connected to the worktable and drives the worktable to reciprocate linearly along the guide rod. A protective cover bearing seat is movably mounted on the outer side of the main shaft, and the blade guard is fixed on the protective cover bearing seat. An arc-shaped protective cover rack is fixedly connected to the outer surface of the blade guard. The center of the arc-shaped protective cover rack coincides with the center of the cutter head. A protective cover gear is provided corresponding to the arc-shaped protective cover rack, and the protective cover gear is driven to rotate by a motor driven by the arc-shaped protective cover rack.

[0007] Furthermore, the rack and pinion drive motor of the arc-shaped protective cover is a forward and reverse reversible motor.

[0008] Furthermore, a set of through-beam photoelectric sensors is provided on both sides of the front end of the cutter head facing the worktable on the frame, and when the blade guard rotates downward to close, the front part of the blade guard facing the worktable is located between the through-beam photoelectric sensors; the through-beam photoelectric sensors are electrically connected to the hydraulic cylinder control valve of the hydraulic system.

[0009] Furthermore, a blade guard plate fixing bearing seat and a blade guard plate are respectively provided on the main shafts located on both sides of the cutter head, and the blade guard plate is fixed on the blade guard plate fixing bearing seat.

[0010] The beneficial effects of this invention are:

[0011] By adopting the above technical solution, the traditional fixed blade guard is designed to be movable, meaning the blade guard can open upwards or close downwards, thus protecting the cutter head. Specifically, when controlling the opening or closing of the blade guard, a motor drives the guard gear to rotate. Since the guard gear meshes with the arc-shaped guard rack on the outer surface of the blade guard, it drives the blade guard to open or close. When the blade guard is open, the blade is exposed and can be used to cut the plastic package. After cutting, the blade guard is closed downwards, allowing the worker to safely pick up and put down materials on the workbench, thus achieving the purpose of work protection. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the main assembly structure of the present invention;

[0013] Figure 2 for Figure 1 Schematic diagram of the AA-direction structure;

[0014] Figure 3 This is a top view diagram of the assembly structure of the present invention;

[0015] Figure 4 This is a schematic diagram of the structure of the blade guard after it is opened to a certain angle in this invention.

[0016] In the diagram, 1-frame, 2-worktable, 3-hydraulic system, 4-guide rod, 5-sliding sleeve, 6-barrel bracket, 7-cutter head, 8-blade guard, 9-spindle, 10-guard bearing housing, 11-arc-shaped guard rack, 12-guard gear, 13-arc-shaped guard rack drive motor, 14-through-beam photoelectric sensor switch, 15-blade guard fixed bearing housing, 16-blade guard. Detailed Implementation

[0017] The specific embodiments of the present invention will be further described below with reference to the accompanying drawings. It should be noted that these descriptions are for the purpose of aiding understanding the present invention, but do not constitute a limitation thereof. Furthermore, the technical features involved in the various embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0018] like Figure 1-3 As shown, a rubber cutting machine with a safety protection device includes a frame 1, a worktable 2, a hydraulic system 3, a guide rod 4, a sliding sleeve 5, a rubber stop bracket 6, a cutter head 7, and a blade guard 8. A main shaft 9 is fixedly mounted on the frame 1 via a bearing seat. A rotatable cutter head 7 is mounted on the main shaft, and a blade guard 8 is provided on the outer side of the cutter head 7. The frame 1 has a guide rod 4, and a sliding sleeve 5 is fitted on the guide rod 4. The worktable 2 is fixed on the sliding sleeve 5, and a rubber stop bracket 6 is provided at one end of the worktable 2. The hydraulic system 3 is connected to the worktable 2 and drives the worktable 2 to reciprocate linearly along the guide rod 4. The hydraulic system 3 provides power to drive the worktable 2 to reciprocate.

[0019] Specifically, a protective cover bearing seat 10 is movably provided on the outer side of the main shaft 9, and the blade protective cover 8 is fixed on the protective cover bearing seat 10; an arc-shaped protective cover rack 11 is fixedly connected to the outer surface of the blade protective cover 8 perpendicular to it; the center of the arc-shaped protective cover rack 11 coincides with the center of the cutter head 7; a protective cover gear 12 is provided corresponding to the arc-shaped protective cover rack 11, and the protective cover gear 12 is driven to rotate by the arc-shaped protective cover rack drive motor 13. Compared with the traditional fixed design of the blade protective cover 8, the blade protective cover 8 in this invention is a movable design, that is, it can be closed downwards for protection, or opened upwards for cutting. With this design, when cutting is required, the blade protective cover 8 is controlled to open upwards to cut the rubber material fed on the worktable 2, and after cutting is completed, the blade protective cover 8 is controlled to close downwards to prevent the cutter head 7 from injuring people.

[0020] Furthermore, the arc-shaped protective cover rack drive motor 13 is a reversible motor. With this design, after the arc-shaped protective cover rack 11 has traveled a certain distance, the blade protective cover 8 can be easily controlled to move in the opposite direction by controlling the arc-shaped protective cover rack drive motor 13 to reverse. The introduction of the reversible motor, combined with the meshing of the arc-shaped protective cover rack 11 and the protective cover gear 12, greatly improves the ease of controlling the downward closing and upward opening of the blade protective cover 8.

[0021] Furthermore, a set of through-beam photoelectric sensors 14 is provided on both sides of the front end of the cutter head 7 facing the worktable 2 on the frame 1. When the blade guard 8 rotates downward to close, the front part of the blade guard 8 facing the worktable is located between the through-beam photoelectric sensors 14. The through-beam photoelectric sensors 14 are electrically connected to the hydraulic cylinder control valve of the hydraulic system 3. The introduction of the through-beam photoelectric sensors 14 can further improve the convenience of controlling the downward closing and upward opening of the blade guard 8. Specifically, when the guard gear 12 rotates and drives the arc-shaped guard rack 11 to move, causing the blade guard 8 to move downward, the through-beam photoelectric sensors 14 are triggered when the blade guard 8 passes between them. After triggering, the hydraulic cylinder control valve connected to the through-beam photoelectric sensors 14 controls the cylinder to move, causing the worktable to move towards the rubber stop 6. This ensures that when the worktable is away from the cutter head, the blade guard 8 is in a downward closed state, allowing the operator to safely pick up and put down materials on the worktable, thereby achieving the purpose of work protection.

[0022] Furthermore, in order to improve the stability of the cutter head 7 during operation, a cutter guard plate fixing bearing seat and a cutter guard plate are respectively provided on the main shaft on both sides of the cutter head, and the cutter guard plate is fixed on the cutter guard plate fixing bearing seat.

[0023] Working principle of the invention:

[0024] Compared to existing technologies, this invention features a movable blade guard, where the blade guard can be opened upwards or closed downwards, thus protecting the blade disc. Simultaneously, the introduction of a forward / reverse motor, coupled with the meshing of the arc-shaped guard rack 11 and guard gear 12, greatly improves the ease of controlling the downward closing and upward opening of the blade guard 8. Furthermore, by introducing a through-beam photoelectric sensor switch 14 and controlling the reciprocating motion of the worktable via the hydraulic system 3 to match the opening and closing of the blade guard 8, the invention achieves synchronized control of the blade guard 8's opening and closing with the worktable's movement, thereby ensuring safety, protecting operators, and preventing accidents.

[0025] The embodiments of the present invention have been described in detail above with reference to the accompanying drawings, but the present invention is not limited to the described embodiments. For those skilled in the art, various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present invention, and these variations still fall within the protection scope of the present invention.

Claims

1. A rubber cutting machine with a safety protection device, comprising a frame (1), a worktable (2), a hydraulic system (3), a guide rod (4), a sliding sleeve (5), a rubber stop (6), a cutter disc (7), and a blade guard (8); a main shaft (9) is fixedly mounted on the frame (1) via a bearing seat, and a rotatable cutter disc (7) is provided on the main shaft, with a blade guard (8) provided on the outer side of the cutter disc (7); a guide rod (4) is provided on the frame (1), a sliding sleeve (5) is fitted on the guide rod (4), the worktable (2) is fixed on the sliding sleeve (5), and a rubber stop (6) is provided at one end of the worktable (2); the hydraulic system (3) is connected to the worktable (2) and drives the worktable (2) to reciprocate linearly along the guide rod (4); characterized in that: The outer side of the main shaft (9) is provided with a protective cover bearing seat (10), and the blade protective cover (8) is fixed on the protective cover bearing seat (10); an arc-shaped protective cover rack (11) is fixedly connected to the outer side of the blade protective cover (8); the center of the arc-shaped protective cover rack (11) coincides with the center of the cutter head (7); a protective cover gear (12) is provided corresponding to the arc-shaped protective cover rack (11), and the protective cover gear (12) is driven to rotate by the arc-shaped protective cover rack drive motor (13); a set of through-beam photoelectric sensor switches (14) are also provided on both sides of the front end of the cutter head (7) facing the worktable (2) on the frame (1), and when the blade protective cover (8) rotates downward to close, the front end of the blade protective cover (8) facing the worktable is located between the through-beam photoelectric sensor switches (14); the through-beam photoelectric sensor switches (14) are electrically connected to the hydraulic cylinder control valve of the hydraulic system (3).

2. A rubber cutting machine with a safety protection device according to claim 1, characterized in that: The arc-shaped protective cover rack drive motor (13) is a forward and reverse rotating motor.

3. A rubber cutting machine with a safety protection device according to claim 1, characterized in that: On the main shaft located on both sides of the cutter head (7), there are respectively a cutter guard plate fixing bearing seat (15) and a cutter guard plate (16), and the cutter guard plate (16) is fixed on the cutter guard plate fixing bearing seat (15).

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