Automatic cutting device for umbrella

Abstract

The present application relates to umbrella manufacturing technology field, specifically to a kind of umbrella automatic cutting device, including cutting base and setting on cutting base lifting frame, cutting head is equipped on the lifting frame, the cutting base includes base body and the integratedly formed setting in several pipe channels of base body, the base body is integrally formed with cutting groove, the cutting groove and pipe channel are crossed each other, fixed device is embedded in the side wall of pipe channel, the fixed device includes embedded in the inner push cylinder of pipe channel side wall and the connecting block being arranged in the shaft end of inner push cylinder, flexible fixing sleeve is movably clamped on the connecting block, when pipe is moved to fixed device position, inner push cylinder exports pressure, and pressure is flexibly applied on pipe by flexible fixing sleeve and pipe is fixed.

Description

Technical Field

[0001] This invention relates to the field of umbrella manufacturing technology, and more specifically to an automatic umbrella cutting device. Background Technology

[0002] A cutting device is a piece of equipment that can cut and process workpieces. It applies shearing force to the workpiece surface through rotating blades or other media, thereby causing directional damage to the workpiece surface. Compared with manual cutting, the cutting speed is faster and the precision is higher, and it is widely used in various industrial fields.

[0003] An umbrella consists of ribs, canopy, and handle. The central tube of the umbrella is usually a tubular component with a hollow interior, allowing for the insertion of an extension mechanism to allow the central tube to extend and retract. During processing, the central tube raw material, i.e., the long tubular component, needs to be cut by a cutting device to ensure that the length of the cut tubular component matches the required length of the umbrella. The cutting device can quickly and quantitatively cut the fed long tubular component, resulting in a fast cutting speed that greatly improves the processing speed and accuracy of the umbrella central tube.

[0004] Although the existing technologies mentioned above can solve the corresponding technical problems, they still have certain drawbacks: the existing cutting devices need to fix the long pipes during the cutting process to prevent them from swaying left and right and affecting the cutting accuracy. The fixing structure of the cutting device clamps the long pipes by applying lateral pressure. However, the cutting process generates a lateral force opposite to the clamping force due to the contact between the blade and the long pipe. Under the action of the double torque, the surface of the long pipe is easily subjected to stress, resulting in grooves or even bending. This leads to a decrease in the pass rate of the cut pipes and an increase in the scrap rate, which invisibly increases the production cost. Summary of the Invention

[0005] The purpose of this invention is to address the shortcomings and deficiencies of the existing technology by providing an automatic umbrella cutting device with low scrap rate and minimal damage to pipe components.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: an automatic umbrella cutting device, comprising a cutting base and a lifting frame disposed on the cutting base, the lifting frame being provided with a cutting head, the cutting base comprising a base body and a plurality of pipe channels integrally formed within the base body, the base body being integrally formed with cutting grooves, the cutting grooves intersecting with the pipe channels, a fixing device being embedded in the side wall of the pipe channel, the fixing device comprising an internal push cylinder embedded in the side wall of the pipe channel and a connecting block disposed at the shaft end of the internal push cylinder, a flexible fixing sleeve being movably engaged on the connecting block, when the pipe moves to the position of the fixing device, the internal push cylinder outputs pressure, the pressure is flexibly applied to the pipe through the flexible fixing sleeve and the pipe is fixed thereon. The device includes an opening and closing block that is movably engaged on a connecting block and an elastic sheet on the outer wall of the opening and closing block. The opening and closing block has an arc-shaped covering plate at its upper and lower ends. The inner surface of the covering plate has a bonding plate with the same shape as the covering plate. Several hollow hemispherical elastic support blocks are provided between the bonding plate and the covering plate. Several buffer fixing blocks are penetrating through the covering plate. The side walls of the buffer fixing blocks penetrate the bonding plate and the bonding plate is slidably connected. The buffer fixing block includes a base plate and a pressure plate provided on the top surface of the base plate and penetrating the bonding plate. The bottom surface of the base plate has an outlet tube that penetrates the covering plate. Several suction tubes are embedded through the pressure plate. The top of the suction tubes has a suction cup. The inner wall of the pressure plate has a penetrating column. A herringbone elastic frame is provided between the bottom end of the penetrating column and the top surface of the base plate.

[0007] A further improvement is that the cutting base is also equipped with a control platform.

[0008] A further improvement is that the end of the pipe channel is provided with a retrieval cavity with a diameter larger than that of the pipe channel.

[0009] A further improvement is that a buffer block is provided on the thrust shaft of the internal thrust cylinder, and the buffer block is a silicone pad with a concave cylindrical shape embedded in the middle section.

[0010] A further improvement is that the outlet tube includes a tube body and a barrier block disposed within the tube body. The inner cavity of the barrier block is movably fitted with a rotating shaft. The outer wall of the rotating shaft is provided with several rotating plates whose ends are fitted and slidably connected to the inner cavity of the barrier block. The bottom of the inner wall of the tube body is also provided with a discharge structure.

[0011] A further improvement is that the discharge structure includes a separation block disposed at the bottom of the tube and an inner retracting block disposed between the tube and the separation block. The bottom of the inner retracting block is fitted with and slidably provided with a sealing plug, and a pull-back spring is provided between the top surface of the sealing plug and the inner wall of the inner retracting block.

[0012] After adopting the above technical solution, the beneficial effects of the present invention are as follows:

[0013] Before cutting, the present invention inserts the pipe into the cutting base and moves it along the pipe channel opened inside. When it reaches the required length, the pipe can be fixed by an internal push cylinder in conjunction with a flexible fixing sleeve. At the same time, a buffer fixing block is used to absorb the excessive pressure generated by the internal push cylinder, thereby avoiding excessive pressure during the fixing process that may squeeze the pipe and cause indentation, and reducing damage to the surface of the pipe during the fixing process.

[0014] During cutting, the lateral force generated by the cutting head causes the pipe to squeeze the flexible fixing sleeve. Consequently, the bonding plate of the flexible fixing sleeve moves towards the covering plate due to the pressure generated by the pipe. The elastic support block between the covering plate and the bonding plate absorbs the lateral force generated by the cutting head. At the same time, the pressure plate of the buffer fixing block deforms to absorb the lateral force a second time. This avoids the bending and deformation of the pipe caused by the lateral force generated during the cutting process and reduces the scrap rate.

[0015] 3. When the flexible fixing sleeve is attached to the extruded tube, the pressure plate of the buffer fixing block is deformed by the compression, which forces the air inside into the outlet tube. After the air is discharged, the outlet tube is resealed, thereby creating a pressure difference between the inner cavity of the pressure plate and the outside. This causes the adsorption tube to generate suction, thus flexibly adsorbing the tube. While ensuring the fixing effect, it effectively prevents the extrusion damage to the surface of the tube, preventing damage to the tube and firmly locking the tube. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a three-dimensional structural schematic diagram of the cutting device of the present invention;

[0018] Figure 2 This is a schematic diagram of the top view of the cutting base of the present invention;

[0019] Figure 3 This is a top view of the fixing device of the present invention.

[0020] Figure 4 This is a structural schematic diagram of the front view cross-section of the flexible fixing sleeve of the present invention;

[0021] Figure 5 This is a structural schematic diagram of the front cross-section of the buffer fixing block of the present invention;

[0022] Figure 6 This is a structural schematic diagram of the front view cross-section of the outlet tube of the present invention. Detailed Implementation

[0023] The present invention will now be further described in conjunction with the accompanying drawings and specific embodiments.

[0024] See Figure 1-6As shown, the technical solution adopted in this specific embodiment is: an automatic umbrella cutting device, including a cutting base 1 and a lifting frame 2 disposed on the cutting base 1. The lifting frame 2 is provided with a cutting head 3. The cutting base 1 includes a base body 11 and a plurality of pipe channels 12 integrally formed within the base body 11. In this embodiment, three pipe channels 12 are provided. A cutting groove 13 is integrally formed on the base body 11. The cutting groove 13 intersects with the pipe channels 12. A fixing device 14 is embedded in the side wall of the pipe channel 12. The fixing device 14 includes an internal push cylinder 141 embedded in the side wall of the pipe channel 12 and a connecting block 143 disposed at the shaft end of the internal push cylinder 141. A flexible fixing sleeve 144 is movably engaged on the connecting block 143. The flexible fixing sleeve 144 includes an opening and closing block 21 movably engaged on the connecting block 143 and an elastic piece 23 disposed on the outer wall of the opening and closing block 21. The upper and lower ends of the opening and closing block 21 are provided with arc-shaped covering plates 24. When the pipe is moved to the position of the fixing device 14, the inner push cylinder 141 outputs pressure, which is flexibly applied to the pipe through the flexible fixing sleeve 144 and the pipe is fixed. In use, the cutting base 1 is placed on the plane and fixed. Then the pipe can be inserted into one end of the pipe channel 12 of the cutting base 1, so that it extends and moves along the pipe channel 12 and from the other end. One end extends, and when it reaches the desired length, the internal thrust cylinder 141 of the fixing device 14 can be activated. This cylinder generates an internal thrust, pushing the connecting block 143 and the flexible fixing sleeve 144 to adhere to and fix the pipe fitting. The opening and closing block 21 of the flexible fixing sleeve 144 can open and close, and the elastic sheet 23 on its outer wall can cause the opening and closing block 21 to retract at an inward angle, thus making it fit more closely to the pipe fitting surface. The opening and closing block 21 is made of rubber, which is highly flexible and has a good fit. It can deform to absorb pressure, and its high surface friction makes the pipe fitting less prone to slipping. The covering plate 24 is used to cover the pipe fitting, ensuring its surface is protected. The pipe fitting is pressed and fixed by compression. The cutting head 3 is lowered by the lifting frame 2, so that its blade extends along the cutting groove 13 and cuts the pipe fitting in the pipe channel 12. When the blade cuts the pipe fitting, a lateral force is generated, which is absorbed by the covering plate 24. This causes the opening and closing block 21 to deform and absorb the pressure, and the opening and closing block 21 to open and close. The elastic sheet 23 deforms to further absorb the lateral force. After cutting, the cut pipe fitting can be taken out from the other end of the pipe channel 12. This avoids excessive pressure during the fixing process, which may cause the pipe fitting to be squeezed and indented, and reduces the damage to the surface of the pipe fitting during the fixing process.

[0025] The cutting base 1 is also equipped with a control platform 5, which makes it easier to control the lifting and lowering of the cutting head 3;

[0026] The pipe channel 12 has a retrieval cavity 15 at its end with a diameter larger than that of the pipe channel 12, which makes it easier to remove the cut pipe.

[0027] The thrust shaft of the internal thrust cylinder 141 is provided with a buffer block 142. The buffer block 142 has a concave cylindrical silicone pad embedded in the middle section. This helps to absorb deformation when the internal thrust cylinder 141 generates excessive thrust through the buffer block 142 in conjunction with the silicone pad embedded in the middle section, thereby further avoiding damage to the surface of the pipe.

[0028] The inner surface of the covering plate 24 is provided with a bonding plate 25 with the same shape as the covering plate 24. Several hollow hemispherical elastic support blocks 26 are provided between the bonding plate 25 and the covering plate 24. In this embodiment, four are provided, which is beneficial to bonding the pipe fitting through the bonding plate 25. The bonding plate 25 can be made of rubber material. When the pressure is too high, the bonding plate 25 can move towards the covering plate 24 and deform itself, thereby squeezing the elastic support blocks 26, thus greatly absorbing and buffering the excessive pressure, and further avoiding damage to the surface of the pipe fitting.

[0029] A plurality of buffer fixing blocks 27 are provided through the covering plate 24. In this embodiment, four are provided. The buffer fixing block 27 includes a base plate 271 and a pressure plate 273 disposed on the top surface of the base plate 271 and penetrating the bonding plate 25. The bottom surface of the base plate 271 is provided with an outlet tube 272 penetrating the covering plate 24. The outlet tube 272 includes a tube body 31 and a blocking block 32 disposed within the tube body 31. A rotating shaft 34 is movably engaged within the cavity of the blocking block 32. The outer wall of the rotating shaft 34 is provided with a plurality of rotating pieces 33 whose ends are attached to and slidably connected to the cavity of the blocking block 32. A discharge structure is also provided at the bottom of the inner wall of the tube body 31. The discharge structure includes a separation block 35 disposed at the bottom of the tube body 31. An inner retractable block 36 is disposed between the tube body 31 and the separating block 35. A sealing plug 37 is fitted and slidably disposed at the bottom of the inner retractable block 36. A pull-back spring 38 is disposed between the top surface of the sealing plug 37 and the inner wall of the inner retractable block 36. Several adsorption tubes 274 are embedded through the pressure plate 273. In this embodiment, two tubes are provided. A suction cup 277 is disposed at the top of the adsorption tube 274. A pendant column 275 is disposed on the inner wall of the pressure plate 273. A herringbone-shaped elastic frame 276 is disposed between the bottom end of the pendant column 275 and the top surface of the base plate 271. The side wall of the buffer fixing block 27 penetrates the bonding plate 25 and the bonding plate 25 is slidably connected. When the covering plate 24 is attached to and squeezes the surface of the tube, it will simultaneously cause the pressure of the buffer fixing block 27 to be reduced. The plate 273 is squeezed against the pipe, causing it to shrink and deform. This forces the air inside the plate 273 into the outlet pipe 272, pushing the rotating plate 33 outside the rotating shaft 34. As the rotating plate 33 rotates, it slowly discharges the gas towards the discharge structure. At this time, the air provides some support to the plate 273, preventing it from collapsing completely due to sudden compression and causing the base plate 271 to directly impact the pipe and damage it. After the gas enters the discharge structure, the air pressure pushes down the sealing plug 37, causing it to lose its contact with the inner block 36, and stretches the pull-back spring 38 to generate elasticity, thus allowing the air to pass through. The air is discharged outward along the tube body 31 through the inner block 36. After discharge, the air pressure disappears. At this time, the elastic force of the pull-back spring 38 quickly pulls back the sealing plug 37 to re-close the tube body 31, thereby creating an air pressure difference between the inner cavity of the pressure plate 273 and the outside. This causes the port of the adsorption tube 274 to generate suction force, which, together with the suction cup 277, expands the adsorption range and thus adsorbs and fixes the tube. In this way, while the pressure plate 273 and the elastic frame 276 absorb excessive pressure and the lateral force generated by cutting, sufficient adsorption force is provided to fix the tube. While ensuring the fixing effect, it effectively prevents the surface of the tube from being squeezed and damaged, prevents damage to the tube, and firmly locks the tube.

[0030] Working principle of the invention: When using the invention, the cutting base 1 is placed on a flat surface and fixed. Then, the pipe fitting is inserted into one end of the pipe fitting channel 12 of the cutting base 1, allowing it to extend and move along the pipe fitting channel 12 and protrude from the other end. Then, at the desired length position, the inner push cylinder 141 of the fixing device 14 is activated, causing the inner push cylinder 141 to generate an inner push force, pushing the connecting block 143 and the flexible fixing sleeve 144 to fit and fix the pipe fitting. The opening and closing block 21 of the flexible fixing sleeve 144 can open and close, and at the same time, the elastic sheet 23 on its outer wall can make the opening and closing block 21 retract at an inward angle, thereby making it fit more closely to the surface of the pipe fitting. At the same time, the opening and closing block 21 is made of rubber material, which is highly flexible and has a good fit, and can deform and absorb pressure. The force and surface friction are relatively large, making it difficult for the pipe to slide. The covering plate 24 is used to cover the pipe, so that its surface is adhered and squeezed to fix it. The cutting head 3 is lowered by the lifting frame 2, so that its cutting disc extends along the cutting groove 13 and cuts the pipe in the pipe channel 12. When the cutting disc cuts the pipe, a lateral force is generated, which is absorbed by the covering plate 24. This causes the opening and closing block 21 to deform and absorb the pressure, and the opening and closing block 21 opens and closes. The elastic sheet 23 deforms to further absorb the lateral force. After cutting, the cut pipe can be taken out from the other end of the pipe channel 12. This avoids excessive pressure during the fixing process, which may squeeze the pipe and cause indentation. It also reduces the damage to the surface of the pipe during the fixing process.

[0031] This invention protects the structure of the product; the model numbers of the components are not protected by this invention, as they are common technology. Any component on the market that can achieve the functions described above can be used as an option. Therefore, the model numbers and other parameters of the components are not described in detail in this invention. The contribution of this invention lies in the scientific combination of the various components.

[0032] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions above are merely illustrative of the principles of the invention. Various changes and modifications can be made to the present invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the present invention as claimed. The scope of protection of the present invention is defined by the appended claims and their equivalents. Any aspects not detailed in the present invention are well-known to those skilled in the art.

Claims

1. An automatic umbrella cutting device, comprising a cutting base (1) and a lifting frame (2) arranged on the cutting base (1), wherein a cutting head (3) is arranged on the lifting frame (2), characterized in that: The cutting base (1) comprises a base body (11) and a plurality of pipe channels (12) integrally arranged in the base body (11), the base body (11) is integrally provided with a cutting groove (13), the cutting groove (13) and the pipe channel (12) are crossed, the side wall of the pipe channel (12) is embedded with a fixing device (14), the fixing device (14) comprises an inner push cylinder (141) embedded in the side wall of the pipe channel (12) and a connecting block (143) arranged at the shaft end of the inner push cylinder (141), the flexible fixing sleeve (144) is movably clamped on the connecting block (143), when the pipe moves to the position of the fixing device (14), the inner push cylinder (141) outputs pressure, and the pressure is flexibly applied on the pipe through the flexible fixing sleeve (144) and the pipe is fixed, the flexible fixing sleeve (144) comprises an opening and closing block (21) movably clamped on the connecting block (143) and a spring sheet (23) arranged on the outer wall of the opening and closing block (21), the upper and lower ends of the opening and closing block (21) are provided with arc-shaped covering plates (24), the inner surface of the covering plate (24) is provided with a fitting plate (25) with the same shape as the covering plate (24), a plurality of hollow hemispherical elastic supporting blocks (26) are arranged between the fitting plate (25) and the covering plate (24), a plurality of buffer fixing blocks (27) are arranged through the covering plate (24), the side wall of the buffer fixing block (27) penetrates the fitting plate (25) and is slidably connected with the fitting plate (25), the buffer fixing block (27) comprises a bottom plate (271) and a pressing sheet (273) arranged on the top surface of the bottom plate (271) and penetrating the fitting plate (25), the bottom surface of the bottom plate (271) is provided with a discharge pipe (272) penetrating the covering plate (24), a plurality of adsorption pipes (274) are embedded through the pressing sheet (273), the top end of the adsorption pipe (274) is provided with a suction disc (277), the inner wall of the pressing sheet (273) is provided with a drooping column (275), and the bottom end of the drooping column (275) and the top surface of the bottom plate (271) are provided with a spring frame (276) in the shape of a chevron.

2. The automatic cutting device for umbrella according to claim 1, wherein: The cutting base (1) is further provided with a control machine (5).

3. The automatic cutting device for umbrella according to claim 1, wherein: The end of the pipe channel (12) is provided with a taking cavity (15) with a diameter larger than that of the pipe channel (12).

4. The automatic cutting device for umbrella according to claim 1, wherein: The thrust shaft of the inner push cylinder (141) is provided with a buffer block (142), and the buffer block (142) is a recessed cylindrical silica gel gasket embedded in the middle section.

5. The automatic cutting device for umbrella according to claim 1, wherein: The discharge pipe (272) comprises a pipe body (31) and a blocking block (32) arranged in the pipe body (31), the inner cavity of the blocking block (32) is movably clamped with a rotating shaft (34), the outer wall of the rotating shaft (34) is provided with a plurality of rotating sheets (33) with the end abutting and slidably connected with the inner cavity of the blocking block (32), and the inner wall bottom of the pipe body (31) is further provided with a discharge structure.

6. An automatic cutting device for an umbrella according to claim 5, characterized in that: The discharge structure comprises a separation block (35) arranged at the bottom of the pipe body (31) and an inward block (36) arranged between the pipe body (31) and the separation block (35), the bottom of the inward block (36) is abutted and slidably provided with a closing plug (37), and a pull-back elastic sheet (38) is arranged between the top surface of the closing plug (37) and the inner wall of the inward block (36).

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