Safety protection device of cutting machine

Abstract

The utility model provides a safety protection device of a cutting machine, belongs to the technical field of cutting protection, and aims to solve the problem that a certain potential safety hazard exists in the process of laying a rubber pad by an operator due to the fact that most cutting knives in the cutting machine are exposed outside, the safety protection device of the cutting machine comprises a driving shaft, and a limiting auxiliary plate is fixedly connected to the outer side of the driving shaft; the protection auxiliary mechanism is arranged on the outer side of the bottom end face of the limiting auxiliary plate. The protection auxiliary mechanism comprises a limiting auxiliary plate and a driving auxiliary plate; the flattening auxiliary mechanism is arranged between the limiting auxiliary plate and the driving auxiliary plate; the cutting knife is inserted below the driving shaft; effective protection on the outer side of the cutting knife is achieved, damage to operators during laying of a rubber pad is greatly avoided, and the use safety of the cutting machine in the actual application process is improved; and impurities and foreign matters at the cutting position are automatically cleaned, so that the service life of the cutting knife is prolonged, and the operation smoothness and the cutting efficiency during rubber cutting are improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of cutting protection, and more specifically, it particularly relates to a safety protection device for a cutting machine. Background Art

[0002] When processing a mold, it is necessary to cooperate with a cutting machine to cut a rubber pad, and then assemble the cut rubber pad. When the existing cutting machine cuts the rubber pad, the operator needs to lay the rubber pad under the cutting knife, and then use the driving shaft to drive the cutting knife to cut the rubber into a specific shape.

[0003] For example, the existing application number CN202122118502.2 discloses a cutting machine, including a workbench. A plurality of support legs are fixedly arranged around the bottom end of the workbench. A conveyor belt is arranged inside the top end of the workbench. Two groups of threaded rods are fixedly arranged on both sides of the center of the top end of the workbench. The top ends of the two groups of threaded rods are fixedly provided with limit plates. Two groups of first sleeves are sleeved on the rod bodies of the two groups of threaded rods. Two groups of sliding rods are fixedly connected between the two groups of first sleeves. Two groups of pneumatic sliding tables are sleeved on the rod bodies of the two groups of sliding rods. The top ends of the two groups of pneumatic sliding tables are fixedly connected with a cutting device. Two groups of connecting columns are fixedly arranged at the upper ends of the two groups of first sleeves. A frame is fixedly connected between the two groups of connecting columns. A plurality of second sleeves are sleeved on both sides of the frame. A threaded hole is opened at the top end of the second sleeve; this utility model discloses a cutting machine, which has a simple structure, is convenient to use, and has a long service life.

[0004] Based on the above, the cutting knives in the existing cutting machine are mostly exposed outside, resulting in certain safety hazards during the process of the operator laying the rubber pad. At the same time, when there are hard impurities or foreign objects attached to the surface of the rubber pad, during the contact between the cutting knife and the hard impurities or foreign objects, it is extremely easy to cause the phenomenon of dulling of the cutting edge, affecting the service life of the cutting knife and the cutting efficiency of the rubber pad. Summary of the Utility Model

[0005] In order to solve the above technical problems, the utility model provides a safety protection device for a cutting machine to solve the problems that the cutting knives in the cutting machine are mostly exposed outside, resulting in certain safety hazards during the process of the operator laying the rubber pad, and at the same time, when there are hard impurities or foreign objects attached to the surface of the rubber pad, during the contact between the cutting knife and the hard impurities or foreign objects, it is extremely easy to cause the phenomenon of dulling of the cutting edge, affecting the service life of the cutting knife and the cutting efficiency of the rubber pad.

[0006] The purpose and efficacy of the safety protection device for the cutting machine of the utility model are achieved by the following specific technical means:

[0007] Safety protection device for a cutting machine, including a drive shaft, a limit auxiliary plate, a protection auxiliary mechanism, a smoothing auxiliary mechanism and a cutting knife. The limit auxiliary plate is fixedly connected to the outside of the drive shaft; the protection auxiliary mechanism is arranged outside the bottom end face of the limit auxiliary plate; the protection auxiliary mechanism includes: a limit auxiliary plate and a drive auxiliary plate; there are two limit auxiliary plates, and the front and rear sides of the limit auxiliary plate are slidably connected up and down; there are two drive auxiliary plates, and the two drive auxiliary plates are reciprocally slidably arranged on the left and right sides of the bottom end face of the limit auxiliary plate; the smoothing auxiliary mechanism is arranged between the limit auxiliary plate and the drive auxiliary plate; the smoothing auxiliary mechanism includes: a transmission lead screw, and there are two transmission lead screws, and the two transmission lead screws are respectively rotatably connected to the front and rear sides inside the limit auxiliary plate; the cutting knife is inserted below the drive shaft.

[0008] Among them, a connection head is coaxially and fixedly connected to the bottom end face of the drive shaft; a positioning auxiliary groove is opened inside the bottom end of the connection head; the positioning auxiliary groove is a polygonal groove structure;

[0009] A positioning head is fixedly connected to the top end face of the cutting knife; the positioning head is a polygonal shaft structure, and the position and size of the positioning head are aligned with the positioning auxiliary groove.

[0010] Among them, the smoothing auxiliary mechanism further includes: a drive rack and a drive gear. There are two drive racks, and the two drive racks are respectively fixedly connected to the inner end faces of the two drive auxiliary plates; there are two drive gears, and the two drive gears are respectively coaxially and fixedly connected to the outside of the two transmission lead screws; the drive gears and the drive racks on the same left and right side are meshed with each other, and the drive rack and the drive gear together constitute a gear-rack transmission mechanism.

[0011] Among them, transmission frames are fixedly connected to the front and rear sides of the top end face of the protection auxiliary plate; threaded transmission holes are opened inside the transmission frames;

[0012] The transmission lead screw is a double-headed lead screw, and the thread pitches at both ends of the transmission lead screw are the same and the helix directions are opposite. The inside of the threaded transmission hole is threadedly connected to the outside of the transmission lead screw, and the transmission lead screw and the threaded transmission hole together constitute a lead screw-nut transmission pair;

[0013] Elastic resetting members are fixedly connected between the front and rear ends of the drive auxiliary plate and the limit auxiliary plate.

[0014] Among them, a movable plate is slidably connected to the lower end of the protection auxiliary plate; a plurality of elastic connecting members are fixedly connected between the movable plate and the protection auxiliary plate.

[0015] Among them, a plurality of auxiliary balls are evenly arranged on the bottom end faces of the movable plate and the drive auxiliary plate at the rear end.

[0016] Compared with the prior art, the utility model has the following beneficial effects:

[0017] When the utility model is in use, it realizes effective protection for the outside of the cutting knife, greatly avoids the damage to the operator when laying the rubber pad, and improves the safety in actual application of the cutting machine.

[0018] When the utility model is in use, during the process of cutting the rubber pad, it realizes the flattening process of the cutting position. At the same time, before the cutting knife contacts and cuts the rubber pad, it automatically cleans the impurities and foreign matters at the cutting position, avoids the damage to the cutting knife caused by the contact between the cutting knife and hard impurities and foreign matters, improves the service life of the cutting knife, and further improves the operation smoothness and cutting efficiency when cutting the rubber. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 is the overall isometric structure schematic diagram of the utility model.

[0020] Figure 2 is the sectional structure schematic diagram of the utility model.

[0021] Figure 3 is the installation structure schematic diagram of the flattening auxiliary mechanism and the movable plate of the utility model.

[0022] Figure 4 is the state structure schematic diagram after the movable plate of the utility model slides inwards.

[0023] Figure 5 is the protective auxiliary sectional structure schematic diagram of the utility model.

[0024] In the figure, the corresponding relationship between the component names and the drawing reference numbers is as follows:

[0025] 1. drive shaft; 101. connecting head; 2. limit auxiliary plate; 3. drive auxiliary plate; 301. elastic reset member; 4. protective auxiliary plate; 401. movable plate; 402. elastic connecting member; 5. transmission lead screw; 501. drive rack; 502. drive gear; 503. transmission frame; 6. cutting knife; 601. positioning head; 7. auxiliary ball. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0026] The following further describes in detail the embodiments of the utility model with reference to the drawings and embodiments.

[0027] Embodiment 1:

[0028] As shown in Figure 1 to Figure 3 shown:

[0029] The utility model provides a safety protection device for a cutting machine, which includes a driving shaft 1, a limiting auxiliary plate 2, a protection auxiliary mechanism, a flattening auxiliary mechanism and a cutting knife 6. The limiting auxiliary plate 2 is fixedly connected to the outside of the driving shaft 1; the protection auxiliary mechanism is arranged on the outside of the bottom end face of the limiting auxiliary plate 2; the protection auxiliary mechanism includes: the limiting auxiliary plate 2 and a driving auxiliary plate 3; there are two limiting auxiliary plates 2, and the front and rear sides of the two limiting auxiliary plates 2 are slidably connected up and down; there are two driving auxiliary plates 3, and the two driving auxiliary plates 3 are reciprocatingly slidably arranged on the left and right sides of the bottom end face of the limiting auxiliary plate 2; the flattening auxiliary mechanism is arranged between the limiting auxiliary plate 2 and the driving auxiliary plate 3; the flattening auxiliary mechanism includes: a transmission lead screw 5, there are two transmission lead screws 5, and the two transmission lead screws 5 are respectively rotatably connected to the front and rear sides inside the limiting auxiliary plate 2; the cutting knife 6 is inserted below the driving shaft 1.

[0030] Wherein, a connecting head 101 is coaxially and fixedly connected to the bottom end face of the driving shaft 1; a positioning auxiliary groove is formed inside the bottom end of the connecting head 101; the positioning auxiliary groove is a polygonal groove structure;

[0031] A positioning head 601 is fixedly connected to the top end face of the cutting knife 6; the positioning head 601 is a polygonal shaft structure, and the position and size of the positioning head 601 are aligned with those of the positioning auxiliary groove.

[0032] As Figure 3 shown: wherein, the flattening auxiliary mechanism further includes: a driving rack 501 and a driving gear 502. There are two driving racks 501, and the two driving racks 501 are respectively fixedly connected to the inner end faces of the two driving auxiliary plates 3; there are two driving gears 502, and the two driving gears 502 are respectively coaxially and fixedly connected to the outside of the two transmission lead screws 5; the driving gears 502 and the driving racks 501 on the same left and right side are meshed with each other, and the driving rack 501 and the driving gear 502 together form a gear-rack transmission mechanism.

[0033] Wherein, the front and rear sides of the top end face of the protection auxiliary plate 4 are fixedly connected with a transmission frame 503; a threaded transmission hole is formed inside the transmission frame 503;

[0034] The transmission lead screw 5 is a double-headed lead screw, the thread pitches at both ends of the transmission lead screw 5 are the same and the helix directions are opposite, the inside of the threaded transmission hole is threadedly connected to the outside of the transmission lead screw 5, and the transmission lead screw 5 and the threaded transmission hole together form a lead screw-nut transmission pair;

[0035] Elastic resetting members 301 are fixedly connected between the front and rear ends of the driving auxiliary plate 3 and the limiting auxiliary plate 2.

[0036] The specific usage method and function of this embodiment:

[0037] When the utility model is in use, the limit auxiliary plate 2 and the driving auxiliary plate 3 achieve effective protection for the outside of the cutting knife 6, greatly avoiding unnecessary injuries caused by the contact between the operator's hand and the cutting knife 6 when laying the rubber pad; after the positioning head 601 is inserted into the positioning auxiliary groove, the rapid installation and positioning of the cutting knife 6 on the driving shaft 1 are realized; during the process of cutting the rubber pad, when the cutting knife 6 slides downward, the driving auxiliary plate 3 contacts the rubber pad. Due to the reverse acting force generated between the cutting knife 6 and the driving auxiliary plate 3 and the elastic reset member 301 during the downward sliding process of the cutting knife 6, the driving auxiliary plate 3 slides upward. When the driving auxiliary plate 3 slides upward, it drives the driving rack 501 to slide synchronously. During the sliding process of the driving rack 501, it pushes the driving gear 502 and the transmission lead screw 5 to rotate. When the transmission lead screw 5 rotates, the transmission frame 503 pushes the two protection auxiliary plates 4 to slide outward synchronously. During the process of the protection auxiliary plates 4 sliding outward simultaneously, the smoothing process of the cutting part of the rubber pad is realized. At the same time, when the protection auxiliary plates 4 slide outward and the driving auxiliary plate 3 and the rubber pad always maintain a pressed state during the cutting process, the cleaning process of the hard impurities and foreign matters on the surface layer of the rubber pad is synchronously realized.

[0038] Embodiment 2:

[0039] On the basis of Embodiment 1, as Figure 4 and Figure 5 shown:

[0040] As Figure 5 shown: Among them, a movable plate 401 is slidably connected to the lower end of the protection auxiliary plate 4; a plurality of elastic connecting members 402 are fixedly connected between the movable plate 401 and the protection auxiliary plate 4.

[0041] Among them, a plurality of auxiliary balls 7 are uniformly arranged on the bottom end faces of the movable plate 401 and the driving auxiliary plate 3 at the rear end.

[0042] The specific usage method and function of this embodiment:

[0043] When the utility model is in use, after the movable plate 401 and the driving auxiliary plate 3 contact the rubber pad, during the process of the cutting knife 6 continuing to slide downward to cut the rubber pad, the extrusion of the elastic connecting members 402 and the sliding of the movable plate 401 towards the inner end of the protection auxiliary plate 4 are realized, ensuring the smooth progress of the cutting. The auxiliary balls 7 improve the smoothness of the sliding of the movable plate 401 and the driving auxiliary plate 3 on the surface layer of the rubber pad.

Claims

1. A safety protection device for a cutting machine, comprising a driving shaft, a position limiting auxiliary plate, a protection auxiliary mechanism, a smoothing auxiliary mechanism and a cutting knife, characterized in that: The limit auxiliary plate is fixedly connected to the outer side of the driving shaft; the protective auxiliary mechanism is arranged on the outer side of the bottom end surface of the limit auxiliary plate; the protective auxiliary mechanism includes: two limit auxiliary plates and two driving auxiliary plates; the two limit auxiliary plates are slid up and down to connect the front and rear sides of the limit auxiliary plate; the two driving auxiliary plates are reciprocatingly slid on the left and right sides of the bottom end surface of the limit auxiliary plate; the smoothing auxiliary mechanism is arranged between the limit auxiliary plate and the driving auxiliary plate; the smoothing auxiliary mechanism includes: two transmission screws, and the two transmission screws are respectively rotatably connected to the front and rear sides inside the limit auxiliary plate; the cutting knife is inserted under the driving shaft.

2. The safety protection device for a cutting machine as claimed in claim 1, characterized in that: The bottom end surface of the driving shaft is coaxially fixedly connected with a connector; the inner side of the bottom end of the connector is provided with a positioning auxiliary groove with a polygonal groove structure; A positioning head with a polygonal shaft structure is fixedly connected to the top end surface of the cutting knife; the position and size of the positioning head and the positioning auxiliary groove are relatively correct.

3. The safety protection device for a cutting machine as claimed in claim 1, characterized in that: The smoothing auxiliary mechanism also includes: two driving racks and two driving gears, the two driving racks are respectively fixedly connected to the inner end surfaces of the two driving auxiliary plates; the two driving gears are respectively coaxially fixedly connected to the outer sides of the two transmission screws; the driving gears and driving racks on the same left and right sides are meshed with each other, and the driving racks and driving gears together constitute a gear rack transmission mechanism.

4. The safety protection device for a cutting machine as claimed in claim 1, characterized in that: The front and rear sides of the top end surface of the protective auxiliary plate are fixedly connected with a transmission frame; the inner side of the transmission frame is provided with a threaded transmission hole; The transmission screw is a double-ended screw, the threads at both ends of the transmission screw have the same pitch and opposite rotation directions, the inner side of the threaded transmission hole is threadedly connected with the outer side of the transmission screw, and the transmission screw and the threaded transmission hole together constitute a screw nut transmission pair; Elastic reset components are fixedly connected between the front and rear ends of the driving auxiliary plate and the limiting auxiliary plate.

5. The safety protection device for a cutting machine as claimed in claim 4, characterized in that: The lower end of the protective auxiliary plate is slidably connected with a movable plate; a plurality of elastic connecting members are fixedly connected between the movable plate and the protective auxiliary plate.

6. The safety protection device for a cutting machine as claimed in claim 5, characterized in that: The bottom end surfaces of the movable plate and the rear end driving auxiliary plate are evenly arranged with a plurality of auxiliary balls.

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