Automatic sharpener for sponge cutting machine

Abstract

This invention discloses an automatic sharpening device for a sponge cutting machine. The device includes a base, two sharpening discs, and two swing arms. One end of each swing arm is oscillatingly mounted on the base, and the other end of each sharpening disc is rotatably mounted on the other swing arm. One sharpening disc is higher than the other. Each swing arm is equipped with a first rotary motor to drive the sharpening discs. A slot for a ring-shaped blade is formed between the two sharpening discs. The base has two driving components that drive the two swing arms to swing. Two limiting rods are located at both ends of the base, extending towards the swing arms. These limiting rods restrict the outward swing position of the two swing arms. This invention ensures that the sharpening discs remain in contact with the ring-shaped blade to sharpen it, guaranteeing that the ring-shaped blade remains sharp at all times.

Description

Technical Field

[0001] This invention relates to the field of production technology for sponge cutting equipment, and more specifically, to an automatic grinding device for a sponge cutting machine. Background Technology

[0002] Sponge cutting machinery is used to cut sponges into sections, mainly relying on a ring-shaped blade to cut the sponge. Currently, there are generally two types of grinding for the ring-shaped blade. One is to remove the ring-shaped blade from the sponge cutting machine and grind it manually. This grinding method is inefficient and requires frequent disassembly and reassembly of the ring-shaped blade, which is very cumbersome. The other is to install a grinding device directly on the sponge cutting machine. This grinding device grinds the ring-shaped blade directly on the sponge cutting machine. This type of grinding device is usually directly fixed on the gantry. During the grinding process, the ring-shaped blade becomes thinner and thinner. At this point, the originally fixed grinding device can no longer contact the ring-shaped blade, which requires subsequent manual disassembly and reinstallation for adjustment. The adjustment process is cumbersome and affects the grinding efficiency of the ring-shaped blade. Summary of the Invention

[0003] In order to overcome the above-mentioned defects of the prior art, embodiments of the present invention provide an automatic sharpening device for a sponge cutting machine.

[0004] To achieve the above objectives, the present invention provides an automatic sharpening device for a sponge cutting machine. The device includes a base, and its innovation lies in that it further includes two sharpening discs and two swing arms. One end of each swing arm is oscillatingly mounted on the base, and the other end of each sharpening disc is rotatably mounted on the other side of each swing arm. One sharpening disc is higher than the other. Each swing arm is equipped with a first rotary motor to drive the sharpening discs. A slot for a ring-shaped blade is formed between the two sharpening discs. The base has two driving components that drive the two swing arms to swing. Two limiting rods are provided at both ends of the base, extending towards the swing arms. The limiting rods are used to limit the outward swing position of the two swing arms.

[0005] Furthermore, the base has a hollow fixed cavity inside, with an elliptical groove on the side. Two drive components are fixed to the bottom of the base and are respectively provided with a first T-shaped bushing and a second T-shaped bushing extending inside the fixed cavity. The height of the first T-shaped bushing is greater than the height of the second T-shaped bushing. One end of each of the two swing arms is fixed to the top of the first T-shaped bushing and the top of the second T-shaped bushing, respectively. The other ends of the two swing arms extend horizontally to the outside of the elliptical groove. Rotary bearings are provided at the bottom of the first T-shaped bushing, the bottom of the second T-shaped bushing, and the connection between the fixed cavity and the base.

[0006] Furthermore, the aforementioned driving component includes a second rotary motor and a reduction gearbox. The bottom of the first T-shaped bushing and the bottom of the second T-shaped bushing extend below the base, respectively. The output ends of the two reduction gearboxes are connected to the bottom of the first T-shaped bushing and the bottom of the second T-shaped bushing, respectively. The input ends of the second rotary motor and the reduction gearboxes are connected.

[0007] Furthermore, a safe distance is maintained between the initial position of the two grinding discs and the annular blade belt. When the sponge cutter is turned on, the two swing arms drive the two grinding discs to swing to the left and right sides of the annular blade belt, so that the two grinding discs are tightly attached to the left and right sides of the annular blade belt.

[0008] Furthermore, the distance by which the aforementioned driving component drives the swing arm to swing is divided into several levels.

[0009] Furthermore, the end of the aforementioned limiting rod is covered with soft rubber.

[0010] The technical effects and advantages of this invention are as follows: After the sponge cutting machine is turned on, the drive unit drives the two swing arms to swing towards the annular blade belt, so that the grinding disc is in close contact with the left and right sides of the annular blade belt. The height of the two grinding discs is set at different levels to avoid contact between the two grinding discs and damage to them. The first rotary motor is turned on to drive the grinding disc to rotate, and the grinding disc grinds the annular blade belt. During the operation of the sponge cutting machine, the swing distance of the swing arms can be adjusted at any time to ensure that the grinding disc is always in contact with the annular blade belt to grind the blade belt, ensuring that the annular blade belt is always in a sharp state and that the sponge can be cut smoothly. Attached Figure Description

[0011] Figure 1 This is an isometric drawing of the present invention.

[0012] Figure 2 This is a diagram showing the internal structure of the base of the present invention. Implementation

[0013] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0014] like Figures 1 to 2In one specific embodiment of the present invention, the structure includes a base 1, two grinding discs 2 and two swing arms 3. One end of each swing arm 3 is oscillatingly mounted on the base 1, and the other end of each grinding disc 2 is rotatably mounted on the other end of each swing arm 3. The height of one grinding disc 2 is higher than that of the other grinding disc 2. Each swing arm 3 is provided with a first rotary motor 11 for driving the grinding disc 2 to rotate. A slot 12 for a ring-shaped blade 100 is formed between the two grinding discs 2. The base 1 is provided with two driving members 4 for driving the two swing arms 3 to swing. Two limiting rods 13 are provided at both ends of the base 1. The extension direction of the two limiting rods 13 is towards the swing arm 3. The two limiting rods 13 are used to limit the outward swing position of the two swing arms 3.

[0015] In this invention, the base 1 is installed on the gantry of the sponge cutting machine, and the annular blade belt 100 is clamped inside the slot 12. After the sponge cutting machine is turned on, the drive unit 4 drives the two swing arms 3 to swing in the direction of the annular blade belt 100, so that the grinding disc 2 is in close contact with the left and right sides of the annular blade belt 100. The height of the two grinding discs 2 is set to be different to avoid the two grinding discs 2 from contacting each other and causing damage to the grinding discs 2. The first rotary motor 11 is turned on to drive the grinding discs 2 to rotate, and the grinding discs 2... The annular blade belt 100 is polished. During the operation of the sponge cutting machine, the swing distance of the swing arm 3 can be adjusted at any time so that the grinding disc 2 is always in contact with the annular blade belt 100 to polish it, ensuring that the annular blade belt 100 is always sharp and that the sponge can be cut smoothly. After the sponge cutting machine is turned off, the drive component 4 drives the two swing arms 3 to move towards the limit rod 13, so that the grinding disc 2 moves away from the annular blade belt 100. The limit rod 13 can limit the swing position of the swing arm 3.

[0016] In this invention, as a preferred embodiment, the interior of the base 1 is a hollow fixed cavity 5. An elliptical groove 51 is provided on the side of the fixed cavity 5. Two driving members 4 are fixed to the bottom of the base 1 and are respectively provided with a first T-shaped bushing 52 and a second T-shaped bushing 53 extending inside the fixed cavity 5. The height of the first T-shaped bushing 52 is greater than the height of the second T-shaped bushing 53. One end of the two swing arms 3 is fixed to the top of the first T-shaped bushing 52 and the top of the second T-shaped bushing 53, respectively. The other ends of the two swing arms 3 extend horizontally to the outside of the elliptical groove 51, respectively. Rotary bearings 54 are provided at the bottom of the first T-shaped bushing 52, the bottom of the second T-shaped bushing 53 and the connection of the fixed cavity 5.

[0017] In this invention, the height settings of the first T-shaped bushing 52 and the second T-shaped bushing 53 are such that the heights of the two swing arms 3 are different to satisfy the setting of the two grinding discs 2 being different in height. The setting of the rotating bearing 54 makes the rotation of the first T-shaped bushing 52 and the second T-shaped bushing 53 on the base 1 more stable.

[0018] In this invention, as a preferred embodiment, the drive component 4 includes a second rotary motor 41 and a reduction gearbox 42. The bottom of the first T-shaped bushing 52 and the bottom of the second T-shaped bushing 53 extend below the base 1, respectively. The output ends of the two reduction gearboxes 42 are connected to the bottom of the first T-shaped bushing 52 and the bottom of the second T-shaped bushing 53, respectively. The input ends of the second rotary motor 41 and the reduction gearbox 42 are connected.

[0019] In this invention, the swing arm 3 is powered by the second rotary motor 41, and the rotation speed of the first T-shaped bushing 52 and the second T-shaped bushing 53 is controlled by the reduction gearbox 42.

[0020] In this invention, as a preferred embodiment, the initial positions of the two grinding discs 2 and the annular blade belt 100 are kept at a safe distance. When the sponge cutter is turned on, the two swing arms 3 respectively drive the two grinding discs 2 to swing to the left and right sides of the annular blade belt 100, so that the two grinding discs 2 are respectively in close contact with the left and right sides of the annular blade belt 100.

[0021] In this invention, when the annular blade belt 100 on the sponge cutter is brand new, there is no need to sharpen the annular blade belt 100. The safety distance setting can meet the usage needs of the brand new annular blade belt 100. Moreover, before using the sponge cutter, it is necessary to check whether the blade belt is in a taut state to avoid the annular blade belt 100 getting stuck inside the slot 12 when it is sharpened later. After the sponge cutter is turned on, when it is necessary to sharpen the annular blade belt, the two sharpening discs 2 can be attached to both sides of the annular blade belt 100 at any time.

[0022] In this invention, as a preferred embodiment, the distance by which the driving member 4 drives the swing arm 3 to swing is divided into several levels.

[0023] In this invention, as the annular blade belt 100 is continuously polished, the thickness of the annular blade belt 100 will become thinner and thinner. Based on the thickness of the annular blade belt 100 after each polishing, the swing distance of the swing arm 3 is divided into several levels, so that the swing distance of the swing arm 3 at each level can make the grinding disc 2 fit against the annular blade belt 100.

[0024] In this invention, as a preferred embodiment, the end of the limiting rod 13 is covered with soft rubber 6.

[0025] In this invention, when the swing arm 3 swings too much, and the limiting rod 13 comes into contact with the swing arm 3, the soft rubber 6 abuts against the swing arm 3, thus protecting the swing arm 3.

[0026] Finally, the following points should be noted: First, in the description of this application, it should be noted that, unless otherwise specified and limited, the terms "installation", "connection", and "linkage" should be interpreted broadly, and can be mechanical or electrical connections, or internal connections between two components, or direct connections. "Up", "down", "left", "right", etc. are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may change.

[0027] Secondly: The accompanying drawings of the embodiments disclosed in this invention only involve the structures involved in the embodiments disclosed in this invention. Other structures can refer to the general design. In the absence of conflict, the same embodiment and different embodiments of this invention can be combined with each other.

[0028] In conclusion, the above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. An automatic sharpener for a sponge cutting machine, the structure of which comprises a base (1), characterized in that: Its structure also includes two grinding discs (2) and two swing arms (3). One end of each of the two swing arms (3) is oscillatingly mounted on the base (1). The two grinding discs (2) are rotatably mounted on the other end of each of the two swing arms (3). The height of one of the grinding discs (2) is higher than that of the other grinding disc (2). Each of the swing arms (3) is provided with a first rotary motor (11) that drives the grinding discs (2) to rotate. A slot (12) for a ring blade (100) is formed between the two grinding discs (2). The base (1) is provided with two driving members (4) that drive the two swing arms (3) to swing. The two ends of the base (1) are provided with two limiting rods (13). The extension direction of the two limiting rods (13) is towards the swing arm (3). The two limiting rods (13) are used to limit the outward swing position of the two swing arms (3). The base (1) has a hollow fixed cavity (5) inside. An elliptical groove (51) is provided on the side of the fixed cavity (5). Two driving members (4) are fixed to the bottom of the base (1) and are respectively provided with a first T-shaped bushing (52) and a second T-shaped bushing (53) extending into the fixed cavity (5). The height of the first T-shaped bushing (52) is greater than the height of the second T-shaped bushing (53). One end of the two swing arms (3) is fixed to the top of the first T-shaped bushing (52) and the top of the second T-shaped bushing (53) respectively. The other end of the two swing arms (3) extends horizontally to the outside of the elliptical groove (51) respectively. Rotary bearings (54) are provided at the bottom of the first T-shaped bushing (52), the bottom of the second T-shaped bushing (53) and the connection of the fixed cavity (5). The drive unit (4) includes a second rotary motor (41) and a reduction gearbox (42). The bottom of the first T-shaped bushing (52) and the bottom of the second T-shaped bushing (53) extend below the base (1). The output ends of the two reduction gearboxes (42) are connected to the bottom of the first T-shaped bushing (52) and the bottom of the second T-shaped bushing (53), respectively. The input end of the second rotary motor (41) is connected to the input end of the reduction gearbox (42). The two grinding discs (2) maintain a safe distance from the annular blade belt (100) at their initial positions. When the sponge cutter is turned on, the two swing arms (3) drive the two grinding discs (2) to swing to the left and right sides of the annular blade belt (100), so that the two grinding discs (2) are tightly attached to the left and right sides of the annular blade belt (100). The distance by which the driving component (4) drives the swing arm (3) to swing is divided into several gears. The end of the limiting rod (13) is covered with soft rubber (6).

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