Loudspeaker cloth girdling and clamping device

Abstract

The invention belongs to the technical field of sound equipment cloth processing devices, and particularly discloses a sound equipment cloth girdling and clamping device which comprises a machine base, a cloth cylinder is rotationally connected to a top plate of the machine base, a pair of product pushing blocks and a pair of cloth clamping pushing blocks are vertically arranged above the machine base at intervals, and the product pushing blocks are located above the cloth clamping pushing blocks; a pair of product clamps are connected between the pair of product pushing blocks in a magnetic attraction mode, a pair of cloth clamps are connected between the pair of cloth clamping pushing blocks in a magnetic attraction mode, the cloth cylinder is located in the space clamped by the pair of product clamps and also located in the space clamped by the same pair of cloth clamps, and a push-pull piece is vertically connected in the machine base in a sliding mode. The product pushing block is used for pushing the product clamp to clamp part of wrapping cloth wrapping a product on the cloth cylinder, the cloth clamping pushing block is used for pushing the cloth clamp to clamp redundant wrapping cloth exceeding the wrapping range of the product on the cloth cylinder, then the cloth is pulled downwards, the whole cloth is stretched and finally clamped and rotated, automatic and precise clamping of cloth wrapping is achieved, and the production efficiency is improved. And a powerful guarantee is provided for efficient and high-quality girdling of the cloth wrapping the spherical sound box.

Description

Technical Field

[0001] This invention belongs to the technical field of audio fabric processing equipment, and particularly relates to an audio fabric circumferential cutting and clamping device. Background Technology

[0002] In the field of audio manufacturing, especially in the production of spherical speaker products, a layer of fabric with a specific material and texture is often wrapped around the outer surface of the speaker shell to enhance the product's aesthetics and texture. This process not only requires the fabric to be tightly wrapped without wrinkles, but also demands extremely high cutting precision to ensure that the cut edges of the fabric are neat and can perfectly fit the curved shape of the speaker shell.

[0003] Existing processes for wrapping and cutting spherical speaker fabric have several drawbacks. The wrapping process relies heavily on manual operation to stretch the fabric to the required length to cover the speaker casing. This process demands not only highly experienced and skilled operators to ensure even stretching and appropriate tension, avoiding overstretching leading to deformation or understretching resulting in incomplete coverage, but also a high degree of dependence on individual operator ability. Differences in technique between operators can easily lead to inconsistent product quality, making it difficult to guarantee product consistency and stability.

[0004] In the fabric cutting process, the current method involves manually stretching the fabric and temporarily securing it with clamps before turning on the laser equipment for cutting. However, the entire operation involves highly repetitive tasks and time. Operators need to spend a significant amount of time stretching and securing the fabric, as well as waiting for the laser cutting to complete. This not only results in low production efficiency, increases production cycles and manufacturing costs, but also easily leads to operator fatigue due to prolonged repetitive work, thereby affecting the accuracy of the operation and product quality.

[0005] Furthermore, the clamping structure used in existing processes is relatively simple, offering limited gripping effect on the fabric. During laser cutting, the high temperature of the laser and changes in the fabric's own tension can easily cause the fabric to loosen and shift, resulting in significant dimensional deviations in the cut fabric, failing to meet the requirements of high-precision production. Simultaneously, adjusting the fabric position to accommodate the production of spherical speakers of different specifications is cumbersome in existing processes, requiring considerable time and manpower for equipment debugging and fixture replacement, further limiting the improvement of production efficiency and product diversity.

[0006] Therefore, the inventors dedicated themselves to designing a clamping device to solve the above problems. Summary of the Invention

[0007] The purpose of this invention is to provide a device for circumferential cutting and clamping of audio fabric, which can realize automated and precise clamping of fabric wrapping, and provide strong guarantee for efficient and high-quality circumferential cutting of the fabric wrapped in spherical audio speakers.

[0008] To achieve the above objectives, the technical solution adopted by the present invention is as follows:

[0009] A device for circumferentially cutting and clamping audio fabric includes a base. The base has a fabric tube vertically and rotatably connected to its top plate. Above the base, a pair of product push blocks and a pair of fabric clamping push blocks are vertically spaced. The product push blocks are located above the fabric clamping push blocks. A pair of product clamps for clamping the portion of the fabric tube covering the product are magnetically connected between the pair of product push blocks. A pair of fabric clamps for clamping excess fabric on the fabric tube that exceeds the product's coverage area are magnetically connected between the pair of fabric clamping push blocks. The fabric tube is located both within the space clamped by the pair of product clamps and within the space clamped by the same pair of fabric clamps. A push-pull component for adjusting the vertical position of the fabric clamps and the fabric clamping push blocks and pulling down the fabric is vertically slidably connected within the base.

[0010] As an improvement of the audio fabric circumferential cutting and clamping device of the present invention, a pressure sensor is fixedly connected to the bottom of the push-pull member, and an electric cylinder plate is vertically guided to the bottom of the push-pull member. An electric cylinder is fixed on the electric cylinder plate, and the pressure sensor is located on the output lead screw of the electric cylinder.

[0011] As an improvement of the audio fabric ring-cutting clamping device of the present invention, the push-pull component includes a pull plate, multiple connecting posts and a connecting plate. The pull plate is U-shaped and its middle part is vertically slidably sleeved on the guide block at the bottom of the top plate. The connecting plate is located directly below the pull plate and is fixedly connected to the pull plate through all the connecting posts.

[0012] As an improvement of the audio fabric ring-cutting clamping device of the present invention, the fabric tube is rotatably mounted on the guide block, the two ends of the pull plate pass through the top plate respectively, and the part of the pull plate passing through the top plate is fixed with a fabric clamping cylinder respectively, and a pair of fabric clamping push blocks are respectively mounted on the output shafts of the two fabric clamping cylinders.

[0013] As an improvement of the audio fabric ring-cutting clamping device of the present invention, a pair of fabric clamps includes two fabric clamp bodies, each fabric clamp body is semi-circular, and the two fabric clamp bodies are symmetrically arranged and magnetically connected to form a complete ring.

[0014] As an improvement of the audio fabric circumferential cutting and clamping device of the present invention, one end face of one of the fabric clamp bodies is provided with a pressure post, and the corresponding end face of the other fabric clamp body is provided with an insertion hole for inserting the pressure post. A push post is elastically connected in the insertion hole, and a fastening member for engaging with the pressure post is elastically inserted along its axial direction on the top surface of the fabric clamp body at the position opposite to the insertion hole.

[0015] As an improvement of the audio fabric circumferential cutting clamping device of the present invention, the center of the fastening member is provided with a fastening hole for the pressure post to pass through, forming a frame shape. The inner wall of the fastening hole is inclined to form a fastening part. The part of the pressure post that extends beyond the corresponding fabric clamp body is provided with a fastening groove. The fastening groove is arranged in a circle along the side wall of the pressure post and fastens with the fastening part.

[0016] As an improvement of the audio fabric ring-cutting clamping device of the present invention, a pair of fabric clamp bodies are provided with fabric pressing grooves on their inner walls respectively, and the two fabric pressing grooves are joined together to form a ring. Multiple pins are inserted into the outer wall of the fabric tube along its radial direction. All the pins are arranged in a ring around the outer wall of the fabric tube, and the part of each pin extending outside the fabric tube is located in the fabric pressing groove.

[0017] As an improvement of the audio fabric circumferential cutting and clamping device of the present invention, the fabric tube includes a tube body and a tube base, the tube base is rotatably connected to the machine base, and the tube body is coaxially disposed directly above the tube base and guidedly connected to the tube base along the axial direction of the tube base.

[0018] As an improvement of the audio fabric circumferential cutting and clamping device of the present invention, the fabric tube also includes a plurality of guide posts. The tube body is guided and connected to the tube base through all the guide posts. The tube body is provided with a plurality of guide holes along its axial direction. One end of each guide post is fixedly connected to the tube base, and the other end of all the guide posts slides into all the guide holes one by one.

[0019] Compared with the prior art, the audio fabric circumferential cutting and clamping device of the present invention uses a product pusher to push a product clamp to clamp the part of the fabric covering the product on the fabric tube. The clamping pusher pushes the fabric clamp to clamp the excess fabric on the fabric tube that exceeds the product covering range. Then, the push-pull member moves down to pull down the fabric, so that the entire fabric is stretched and finally clamped and rotated, realizing the automation and precision clamping of the fabric covering, providing a strong guarantee for the efficient and high-quality circumferential cutting of the fabric covering the spherical speaker. Attached Figure Description

[0020] Figure 1 This is a front view of the audio fabric circumferential cutting and clamping device of the present invention;

[0021] Figure 2This is a perspective view of the audio fabric circumferential cutting and clamping device of the present invention, in which the upper clamp and electric cylinder are in a hidden state;

[0022] Figure 3 This is a three-dimensional enlarged view of the push-pull component and the two fabric clamping cylinders of the present invention;

[0023] Figure 4 This is a three-dimensional enlarged view of the push-pull component and the two fabric clamping cylinders of the present invention from another perspective;

[0024] Figure 5 This is a three-dimensional enlarged view of the cloth tube, motor, and lifting cylinder of the present invention;

[0025] Figure 6 This is an enlarged cross-sectional view of the cloth tube and the push-pull component in this invention;

[0026] Figure 7 This is an enlarged cross-sectional view of the cloth tube in this invention;

[0027] Figure 8 This is a three-dimensional enlarged view of the pull plate and the two fabric clamping cylinders in this invention;

[0028] Figure 9 This is a three-dimensional enlarged view of a pair of fabric clips and two fabric clamping cylinders in this invention;

[0029] Figure 10 This is a three-dimensional enlarged view of a pair of fabric clips in this invention;

[0030] Figure 11 This is a three-dimensional exploded view of a pair of fabric clips in this invention;

[0031] Figure 12 This is an enlarged cross-sectional view of a pair of fabric clips in this invention;

[0032] Figure 13 This is another enlarged cross-sectional view of a pair of fabric clips in this invention;

[0033] Figure 14 This is a three-dimensional exploded and enlarged view of the fastener, pressure post, and push post in this invention;

[0034] Figure 15 This is a three-dimensional enlarged view of the product cylinder and lower clamp in this invention;

[0035] Figure 16 This is a front view of the audio fabric circumferential cutting and clamping device in the product loading and fabric wrapping state in this invention;

[0036] Figure 17 This is a front view of the audio fabric circumferential cutting and clamping device in the pull-down wrapping state in this invention;

[0037] Figure 18This is a front view of the audio fabric circumferential cutting and clamping device in the clamping state in this invention;

[0038] Figure 19 This is a front view of the audio fabric circumferential cutting and clamping device in the state of clamping the fabric and the product in this invention.

[0039] Illustration:

[0040] 1. Base; 11. Top plate; 111. Guide block; 12. Motor; 121. Motor plate; 122. Fixing column; 2. Electric cylinder; 21. Pressure sensor; 22. Push-pull component; 221. Pull plate; 2211. Guide hole; 222. Connecting column; 223. Connecting plate; 23. Electric cylinder plate; 231. Guide rod; 3. Fabric clamping push block; 31. Fabric clamping cylinder; 32. Fabric clamping magnet; 33. Fabric clamping guide rod; 4. Fabric clamp; 411. Fabric clamp body; 412. Insertion hole; 412. Adsorption magnet; 42. Push column; 421. Push spring; 43. 431. Pressing column; 44. Fastening groove; 44. Fastening part; 441. Fastening hole; 442. Fastening part; 443. Pressing spring; 45. Adsorption block; 46. Pressing cloth groove; 5. Product clamp; 51. Lower clamp; 52. Upper clamp; 6. Cloth tube; 61. Cylinder body; 611. Upper boss; 612. Lower boss; 613. Guide hole; 614. Pin; 62. Cylinder seat; 63. Guide column; 64. Center column; 7. Product push block; 71. Product cylinder; 72. Product magnet; 73. Product guide rod; 8. Lifting block; 81. Lifting cylinder; 9. Product. Detailed Implementation

[0041] The embodiments of the present invention are described in detail below with reference to the accompanying drawings. The drawings are for reference and illustration only and do not constitute a limitation on the scope of protection of the present invention.

[0042] Reference Figures 1 to 19 A device for circumferential cutting and clamping of audio fabric includes a base 1, a fabric tube 6, a pair of product push blocks 7, a pair of product clamps 5, a pair of fabric clamping push blocks 3, a pair of fabric clamps 4, and a push-pull component 22. The fabric tube 6 is vertically and rotatably mounted on the top plate 11 of the base 1. The pair of product push blocks 7 and the pair of fabric clamping push blocks 3 are vertically spaced above the base 1. The product push blocks 7 are located above the fabric clamping push blocks 3. The pair of product clamps 5 are magnetically attached between the pair of product push blocks 7. The pair of product clamps 5 are used to clamp the part of the fabric covering the product 9 on the fabric tube 6. The pair of fabric clamps 4 are magnetically attached between the pair of fabric clamping push blocks 3. The pair of fabric clamps 4 are used to clamp the excess fabric on the fabric tube 6 that exceeds the coverage of the product 9. The fabric tube 6 is located both within the space clamped by the pair of product clamps 5 and within the space clamped by the same pair of fabric clamps 4. A push-pull component 22 is vertically slidably connected inside the base 1 for adjusting the vertical position of the fabric clamps 4 and the fabric clamping push blocks 3 to pull down the covering fabric.

[0043] Reference Figure 1 and Figure 2 The base 1 has a top plate 11 on its top, and through holes are provided at the left and right ends of the top plate 11. The interior of the base 1 is hollow. A guide block 111 is fixed at the bottom of the top plate 11 (the diameter of the middle circle of the guide block 111 is larger than the diameter of the circles at its two ends). The guide block 111 is located between the two through holes. A motor plate 121 is fixedly connected to the bottom of the guide block 111 by four fixing posts 122. A motor 12 is fixed at the bottom of the motor plate 121. The output shaft of the motor 12 passes through the guide block 111 and the top plate 11.

[0044] Reference Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 and Figure 8 The push-pull component 22 includes a pull plate 221, four connecting posts 222 and a connecting plate 223. The pull plate 221 is U-shaped and has a guide hole 2211 in the middle. The middle part of the pull plate 221 is vertically slidably sleeved on the guide block 111 at the bottom of the top plate 11. The two ends of the pull plate 221 pass through two through holes on the top plate 11 and extend to the outside of the base 1. All connecting posts 222 and connecting plates 223 are located inside the base 1. The connecting plate 223 is located directly below the pull plate 221 and is fixedly connected to the pull plate 221 through the four connecting posts 222. The motor 12 is located directly above the connecting plate 223 and has a certain gap between it and the connecting plate 223.

[0045] Reference Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 and Figure 8 A pressure sensor 21 is fixedly connected to the bottom of the connecting plate 223. A cylinder plate 23 is vertically connected to the bottom of the pull plate 221 via four guide rods 231. The top ends of the four guide rods 231 are fixedly connected to the top plate 11. The cylinder plate 23 is located directly below the connecting plate 223. An electric cylinder 2 is fixed to the bottom of the cylinder plate 23. The pressure sensor 21 is set on the output screw of the electric cylinder 2. The electric cylinder 2 drives its output screw to rotate, thereby driving the entire push-pull component 22 to move up and down. In this invention, the electric cylinder 2, the cylinder plate 23, the connecting plate 223, the connecting column 222, the motor 12, the motor plate 121, and the fixed column 122 are all located inside the base 1.

[0046] Reference Figure 4 , Figure 5 , Figure 6 and Figure 7The cloth cylinder 6 is rotatably mounted on the guide block 111. The cloth cylinder 6 includes a cylinder body 61, a cylinder seat 62, and four guide posts 63. The cylinder body 61 is sleeved on the output shaft of the motor 12. The guide block 111 and the top plate 11 are sleeved on the output shaft of the motor 12. The cylinder seat 62 is rotatably connected to the guide block 111 through a bearing. The cylinder body 61 is coaxially positioned directly above the cylinder seat 62 and is guided and connected to the cylinder seat 62 along the axial direction of the cylinder seat 62. Specifically, the cylinder body 61 is guided and connected to the cylinder seat 62 through all the guide posts 63. The cylinder body 61 has four guide holes 613 along its axial direction. The lower end of each guide post 63 is fixed to the cylinder seat 62. The upper ends of all guide posts 63 are slidably extended into all guide holes 613. The central post 64 at the bottom of the cylinder 61 is inserted into the cylinder base 62 and fixedly connected to the output shaft of the motor 12. The four guide posts 63 are arranged in a circle around the central post 64 at intervals. The bottom end of the cylinder 61 extends outward to form a lower boss 612. Multiple pins 614 are inserted radially on the outer wall of the lower end of the cylinder 61. The head of each pin 614 is located outside the cylinder 61. All pins 614 are arranged in a circle around the central post 64 at intervals and close to the lower boss 612. The upper end of the cylinder 61 is provided with an upper boss 611.

[0047] Reference Figure 3 , Figure 4 and Figure 6 A lifting cylinder 81 is vertically fixed on the top plate 11. The output end of the lifting cylinder 81 is provided with an L-shaped lifting block 8. The lifting end of the lifting block 8 is located in the space formed between the lower boss 612 and the top plate 11.

[0048] Reference Figure 3 , Figure 4 , Figure 8 and Figure 9 The pull plate 221 has a fabric clamping cylinder 31 fixed at each of its left and right ends through two holes on the top plate 11. A pair of fabric clamping push blocks 3 are respectively set on the output shafts of the two fabric clamping cylinders 31. The two fabric clamping push blocks 3 are symmetrically arranged. Each fabric clamping push block 3 has a fabric clamping magnet 32 ​​and two fabric clamping guide rods 33 at its pushing end. The fabric clamping magnet 32 ​​is located between the two fabric clamping guide rods 33.

[0049] Reference Figures 9 to 14A pair of fabric clips 4 includes two clip bodies 41, each clip body 41 being semi-circular. The two clip bodies 41 are symmetrically arranged and magnetically connected to form a complete ring. Specifically, each clip body 41 has an adsorption magnet 412 on each of its two end faces. The adsorption magnet 412 on the end face of one clip body 41 is magnetically connected to the adsorption magnet 412 on the end face of the other clip body 41. A pressure post 43 is inserted into one end face of one clip body 41, with a portion of the pressure post 43 inserted into the clip body 41 and the other portion extending out of the clip body 41. A fastening groove 431 is provided on the part other than the fabric clip body 41. The fastening groove 431 is arranged in a circle along the side wall of the pressure post 43. The corresponding end face of the other fabric clip body 41 is provided with an insertion hole 411 for the pressure post 43 to be inserted. A push post 42 is elastically connected to the insertion hole 411 by a push spring 421. The push spring 421 is sleeved on the push post 42. A fastening member 44 for fastening with the pressure post 43 is elastically inserted along its axial direction on the top surface of the fabric clip body 41 at the position opposite to the insertion hole 411 by two pressing springs 443. The fastening member 44 has a pressure post at its center. The fastening hole 441 through which the pressure post 43 passes forms a frame shape. The inner wall of the fastening hole 441 is inclined to form an annular fastening part 442. The cross-section of the fastening part 442 is triangular. The fastening groove 431 on the pressure post 43 is used to fasten with the fastening part 442 of the fastening hole 441. In this embodiment, the two fabric clip bodies 41 are connected by two locking switches arranged in opposite directions. Each locking switch consists of a fastening member 44, a push post 42, a push spring 421, a pressure post 43, and two pressing springs 443. The locking switch can lock the two fabric clip bodies 41. It can also be opened. The inner walls of the two fabric clamp bodies 41 are respectively provided with a fabric pressing groove 46. The two fabric pressing grooves 46 are joined together to form a ring. All the pins 614 at the lower end of the cylinder 61 are arranged in a ring around the outer wall of the fabric cylinder 6. The part of each pin 614 extending outside the fabric cylinder 6 is located in the fabric pressing groove 46. Each fabric clamp body 41 has an adsorption block 45 fixed on one side near the corresponding fabric clamping push block 3. The adsorption block 45 can be magnetically connected with the fabric clamping magnet 32 ​​on the corresponding fabric clamping push block 3. The fabric clamping guide rod 33 on the fabric clamping push block 3 can be inserted into the limiting hole on the corresponding fabric clamp body 41.

[0050] Reference Figure 1 and Figure 15At the top two ends of the base 1, a product cylinder 71 is connected to a fixed frame. Two product push blocks 7 are located on the output shafts of the two product cylinders 71 respectively. Each product push block 7 has two product magnets 72 and multiple product guide rods 73 on its side pressure end. Each product clamp 5 includes an upper clamp 52 and a lower clamp 51. The upper clamp 52 is stacked on the lower clamp 51 and fixedly connected to the lower clamp 51. The upper clamp 52 and the lower clamp 51 are both semi-circular and are magnetically connected to the two product magnets 72 on the same product push block 7 through adsorption components. The clamping end of each product clamp 5 corresponds to half of the outer contour of the product 9 on the fabric tube 6. Thus, when a pair of product clamps 5 are magnetically attracted together to form a ring, the part of the fabric covering the product 9 on the fabric tube 6 can be clamped. A pair of product clamps 5 are also connected by two locking switches arranged in opposite directions. The structure of the locking switch on the product clamp 5 is the same as the structure of the locking switch on the fabric clamp 4, and will not be described here.

[0051] Reference Figures 1 to 19 The working principle of the audio fabric circumferential cutting and clamping device of the present invention is as follows:

[0052] The product 9 (the outer shell of the spherical speaker) covered with fabric is installed on top of the fabric tube 6. The product 9 is positioned by the upper boss 611 at the top of the fabric tube 6. The upper end of the fabric covers the product 9 and is fixedly connected to it. The excess portion of the lower end of the fabric that extends beyond the coverage area of ​​the product 9 covers the fabric tube 6 and is located on the lower boss 612 (e.g., ...). Figure 16 (as shown);

[0053] The lifting cylinder 81 drives the lifting block 8 to move up and down. The lifting block 8 lifts the cylinder body 61 of the cloth cylinder 6. The four guide columns 63 slide along their respective guide holes 613 to adjust the distance between the cylinder body 61 and the cylinder seat 62, so that the positions of the multiple pins 614 on the outer wall of the cylinder body 61 are opposite to the positions of the pressing grooves 46 on the inner wall of the cloth clamp 4.

[0054] Two fabric clamping cylinders 31 drive their respective fabric clamping push blocks 3 to move toward the fabric tube 6 until a pair of fabric clamps 4 align. The protruding part of the pressure column 43 is inserted into the corresponding insertion hole 411, first passing through the fastening hole 441 of the fastening member 44, causing the fastening member 44 to move down and compress the spring 443. Then, it presses against the push column 42 in the insertion hole 411, pushing the spring 421 to compress until the fastening part 442 on the inner wall of the fastening hole 441 is located in the fastening groove 431 on the pressure column 43. The fastening member 44 is reset, and the fastening part 442 is fastened with the fastening groove 431. The pair of fabric clamps 4 are locked, which can clamp the excess wrapping fabric on the fabric tube 6 that exceeds the wrapping range of the product 9.

[0055] Electric cylinder 2 drives its output screw to rotate, thereby pulling pressure sensor 21 and push-pull component 22 downwards together. Push-pull component 22 drives two fabric clamping cylinders 31, a pair of fabric clamping push blocks 3, and a pair of fabric clamps 4 to move downwards together, causing the fabric held by the pair of fabric clamps 4 to be pulled down along the side wall of fabric cylinder 6 until the protruding parts of multiple pins 614 on the side wall of fabric cylinder 6 and the corresponding small parts of fabric are all in the fabric pressing grooves 46 on the inner wall of the pair of fabric clamps 4, thus fixing the lower end of the fabric. At this time, the entire fabric is in a stretched state (e.g., Figure 17 (as shown);

[0056] Two fabric clamping cylinders 31 drive their respective fabric clamping push blocks 3 away from the fabric tube 6. Since the pair of fabric clamps 4 are in a locked state, the two fabric clamping push blocks 3 disengage from their respective fabric clamps 4, leaving the pair of fabric clamps 4 on the fabric tube 6 (e.g., Figure 17 As shown), continue to hold the lower end of the fabric (i.e., the excess part that exceeds the wrapping area of ​​product 9);

[0057] Two product cylinders 71 drive their respective product push blocks 7 to approach the fabric tube 6 until a pair of product clamps 5 engage, clamping the lower part of the fabric covering the product 9 on the fabric tube 6, and locking the pair of product clamps 5.

[0058] Two product cylinders 71 drive their respective product push blocks 7 away from the cloth tube 6. Since a pair of product clamps 5 are locked, the two product clamps 5 disengage from their respective product push blocks 7 and remain on the cloth tube 6.

[0059] Motor 12 drives cylinder base 62 to rotate, cylinder base 62 drives cylinder body 61 to rotate together, making the entire fabric cylinder 6 rotate. Product 9, covering fabric, a pair of product clips 5 and a pair of fabric clips 4 also rotate with fabric cylinder 6. The part of the covering fabric below the pair of product clips 5 is circumferentially cut by laser machine, and the excess covering fabric on product 9 can be removed.

[0060] Press the two fasteners 44 on the fabric clip 4 to remove the fabric clip 4 and clean up the waste.

[0061] The speaker fabric circumferential cutting and clamping device of the present invention uses product push block 7 to push product clamp 5 to clamp the part of the fabric covering product 9 on fabric tube 6. Cloth clamping push block 3 pushes fabric clamp 4 to clamp the excess fabric on fabric tube 6 that exceeds the coverage of product 9. Then, the push-pull member 22 moves down to pull down the fabric, so that the entire fabric is stretched and finally clamped and rotated, realizing the automation and precision clamping of the fabric wrapping, providing a strong guarantee for the efficient and high-quality circumferential cutting of the fabric covering the spherical speaker.

[0062] The above-disclosed embodiments are merely preferred embodiments of the present invention and should not be construed as limiting the scope of protection of the present invention. Therefore, any equivalent variations made in accordance with the scope of the patent application of the present invention are still within the scope of the present invention.

Claims

1. A device for circumferential cutting and clamping of audio fabric, comprising a base, characterized in that, A fabric tube is vertically and rotatably connected to the top plate of the machine base. A pair of product push blocks and a pair of fabric clamping push blocks are vertically spaced above the machine base. The product push blocks are located above the fabric clamping push blocks. A pair of product clamps for clamping the part of the fabric covering the product on the fabric tube are magnetically connected between the pair of product push blocks. A pair of fabric clamps for clamping the excess fabric covering the product on the fabric tube that exceeds the product covering range are magnetically connected between the pair of fabric clamping push blocks. The fabric tube is located both within the space clamped by the pair of product clamps and within the space clamped by the same pair of fabric clamps. A push-pull component for adjusting the vertical position of the fabric clamps and the fabric clamping push blocks and pulling down the fabric covering is vertically slidably connected inside the machine base.

2. The audio fabric circumferential cutting and clamping device according to claim 1, characterized in that, A pressure sensor is fixedly connected to the bottom of the push-pull component, and an electric cylinder plate is vertically guided to the bottom of the push-pull component. An electric cylinder is fixed on the electric cylinder plate, and the pressure sensor is located on the output lead screw of the electric cylinder.

3. The audio fabric circumferential cutting and clamping device according to claim 1, characterized in that, The push-pull component includes a pull plate, multiple connecting posts, and a connecting plate. The pull plate is U-shaped and its middle part is vertically slidably sleeved on the guide block at the bottom of the top plate. The connecting plate is located directly below the pull plate and is fixedly connected to the pull plate through all the connecting posts.

4. The audio fabric circumferential cutting and clamping device according to claim 3, characterized in that, The fabric tube is rotatably mounted on the guide block. Both ends of the pull plate pass through the top plate, and the part of the pull plate that passes through the top plate is fixed with a fabric clamping cylinder. A pair of fabric clamping push blocks are respectively mounted on the output shafts of the two fabric clamping cylinders.

5. The audio fabric circumferential cutting and clamping device according to claim 1, characterized in that, A pair of fabric clips includes two fabric clip bodies, each fabric clip body is semi-circular, and the two fabric clip bodies are symmetrically arranged and magnetically connected to form a complete ring.

6. The audio fabric circumferential cutting and clamping device according to claim 5, characterized in that, One end face of one of the fabric clip bodies is provided with a pressure post, and the corresponding end face of the other fabric clip body is provided with a socket for inserting the pressure post. A push post is elastically connected in the socket. A fastening member for engaging with the pressure post is elastically inserted along its axial direction on the top surface of the fabric clip body at the position opposite to the socket.

7. The audio fabric circumferential cutting and clamping device according to claim 6, characterized in that, The fastener has a frame-shaped fastening hole at its center for the pressure post to pass through. The inner wall of the fastening hole is inclined to form a fastening part. The part of the pressure post that extends beyond the fabric clip body has a fastening groove. The fastening groove is arranged in a circle along the side wall of the pressure post and fastens to the fastening part.

8. The audio fabric circumferential cutting and clamping device according to claim 1, characterized in that, Each of the two fabric clip bodies has a pressing groove on its inner wall. The two pressing grooves are joined together to form a ring. Multiple pins are inserted radially on the outer wall of the fabric tube. All the pins are arranged in a ring around the outer wall of the fabric tube. The part of each pin extending outside the fabric tube is located in the pressing groove.

9. The audio fabric circumferential cutting and clamping device according to claim 1, characterized in that, The cloth tube includes a tube body and a tube base. The tube base is rotatably connected to the machine base. The tube body is coaxially disposed directly above the tube base and is guided and connected to the tube base along the axial direction of the tube base.

10. The audio fabric circumferential cutting and clamping device according to claim 9, characterized in that, The cloth tube also includes multiple guide posts. The tube body is guided and connected to the tube base through all the guide posts. Multiple guide holes are provided in the tube body along its axial direction. One end of each guide post is fixedly connected to the tube base, and the other end of all the guide posts slides into all the guide holes one by one.

Images