A mesh cage frame sewing apparatus

Abstract

The application discloses a kind of net cage frame sewing equipment, and technical solution main points include base, and the base is provided with the threader needle and the upper puller needle of liftable and the lower threader needle and the upper threader needle of swingable;Threader needle drives sewing thread to move along the inside of net cage frame to the lower threader needle down;Lower threader needle hooks the sewing thread on threader needle and sewing thread is along the lower side of net cage frame and is moved to the upper puller needle;Upper puller needle hooks the sewing thread on lower threader needle and sewing thread is along the outside of net cage frame and is pulled up to the upper threader needle;Upper threader needle hooks the sewing thread on upper puller needle and sewing thread is along the upper of net cage frame and is moved back to threader needle.The application has the advantages of high production efficiency, reduce production cost, reduce manual labor intensity.

Description

Technical Field

[0001] This invention relates to the field of fishery net cage production technology, and more specifically to a net cage frame sewing device. Background Technology

[0002] Net cages, mainly composed of netting and an internal metal frame, are production tools used in aquaculture or fishing. With the continuous development of the fishing and angling industries, the demand for net cages is increasing. In traditional net cage production, the assembly of the netting and metal frame into a finished product is still done manually. This is because the metal frame is a rigid material with a rod-like structure, while the netting is a flexible material. Existing machinery either processes the flexible netting separately or the metal frame separately. The final assembly, sewing the netting onto the frame, still requires workers to use shuttles and sewing thread to sew the netting onto the metal frame. This results in high labor intensity, high production costs, and low production efficiency.

[0003] Therefore, this application provides a sewing device that can sew mesh fabric onto a metal frame to solve the above-mentioned problems. Summary of the Invention

[0004] In view of the shortcomings of the existing technology, the present invention provides a wire mesh frame sewing device, which has the advantages of high production efficiency, reduced production costs, and reduced manual labor intensity.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a mesh cage frame sewing device, comprising a machine base, characterized in that: the machine base is provided with a liftable threading needle and an upward pulling needle, as well as a swingable downward thread pulling needle and an upward thread pulling needle;

[0006] The threading needle moves the sewing thread downwards along the inner side of the mesh frame to the lower thread-pulling needle; the lower thread-pulling needle hooks the sewing thread on the threading needle and pulls the sewing thread along the lower side of the mesh frame to the upper pull needle; the upper pull needle hooks the sewing thread on the lower thread-pulling needle and pulls the sewing thread upwards along the outer side of the mesh frame to the upper thread-pulling needle; the upper thread-pulling needle hooks the sewing thread on the upper pull needle and pulls the sewing thread back along the upper edge of the mesh frame to the threading needle.

[0007] By setting up the above, and then linking the subsequent feed mechanism with the sewing action of the threading needle, automatic sewing can be achieved. Specifically, when the threading needle moves upward, the feed wheel of the feed mechanism rotates a certain distance, creating a triangular gap between the sewing thread and the wire mesh. When the threading needle moves downward, it can be inserted into the gap for the next round of thread winding.

[0008] The present invention is further configured such that: the threading needle is provided with a threading hole and an avoidance groove located above the threading hole, the threading hole is used to thread the sewing thread, and the avoidance groove is adapted to the end of the lower thread-pulling needle.

[0009] The present invention is further configured such that: the base is provided with a support platform for supporting the wire mesh frame, and the support platform is provided with a through hole, through which threading needles and pull-up needles can pass.

[0010] The present invention is further configured such that the swing end of the lower thread-pulling needle is located below the support platform, and the swing end of the upper thread-pulling needle is located above the support platform.

[0011] The present invention is further configured such that: a feeding mechanism is also provided on the base, the feeding mechanism includes a feeding wheel and a pressing wheel, the feeding wheel and the pressing wheel cooperate with the wire mesh frame and can drive the wire mesh frame to move by rotating.

[0012] The present invention is further configured such that the rotation of the feed wheel is linked to the movement of the threading needle, and the feed wheel rotates a certain distance when the threading needle moves upward.

[0013] The present invention is further configured such that: a reciprocating needle bar and a power-providing spindle are provided inside the machine base, and the threading needle and the pull-up needle are both mounted on the needle bar.

[0014] The present invention is further configured such that: a crank component is provided on the main shaft, a rocker arm is provided on the crank component, one end of the rocker arm is hinged to the crank component, and the other end is hinged to the needle rod.

[0015] The present invention is further configured such that: a needle cam A and a needle cam B are provided on the main shaft, and the needle cam A and the needle cam B are respectively connected to the upper thread-pulling needle and the lower thread-pulling needle through a connecting rod assembly.

[0016] The present invention is further configured such that: a feed cam is provided on the main shaft, and the feed cam is driven and engaged with the feed wheel through a connecting rod and a gear.

[0017] In summary, the present invention has the following beneficial effects:

[0018] Compared to existing technologies, this invention features a threading needle, an upward-pulling needle, a downward-pulling needle, and an upward-pulling needle. The threading needle and the upward-pulling needle are parallel and spaced apart, with the mesh frame rod positioned precisely between these intervals. In other words, the threading needle and the upward-pulling needle are located on either side of the mesh frame rod. This allows the threading needle and the upward-pulling needle to reciprocate as they move, in conjunction with the oscillation of the downward-pulling needle and the upward-pulling needle, to alternately wrap the sewing thread around the mesh frame, achieving sewing fixation between the mesh fabric and the frame. Simultaneously, the feeding mechanism, through the rotation of the feed wheel during the wrapping process, moves the mesh frame forward once after each wrapping of the sewing thread, ensuring sufficient spacing after sewing and guaranteeing good sewing fixation strength. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of this embodiment;

[0020] Figure 2 This is a schematic diagram of the needle bar descending in this embodiment;

[0021] Figure 3 This is a schematic diagram of the needle swinging during the thread-picking process in this embodiment;

[0022] Figure 4 This is a schematic diagram of the needle bar moving upwards in this embodiment;

[0023] Figure 5 This is a schematic diagram of the needle of the thread-pulling machine swinging in this embodiment;

[0024] Figure 6 This is an enlarged structural diagram of the needle clearance groove of the threading machine in this embodiment;

[0025] Figure 7 This is a schematic diagram of the internal transmission structure in this embodiment;

[0026] Figure 8 This is a schematic diagram of the internal transmission structure on the other side of this embodiment.

[0027] Reference numerals: 10. Machine base; 11. Needle bar; 12. Main shaft; 1. Threading needle; 1a. Threading hole; 1b. Clearance groove; 2. Pull-up needle; 3. Lower thread-pulling needle; 4. Upper thread-pulling needle; 5. Feed mechanism; 501. Feed wheel; 502. Pressure wheel; 6. Needle cam A; 601. First transmission rod A; 602. Second transmission rod A; Third transmission rod A; 7. Needle cam B; 701. First transmission rod B; 702. Second transmission rod B; 703. Third transmission rod B; 8. Feed cam; 801. Feed transmission rod; 802. Gear assembly; 9. Support platform; 901. Through hole; 121. Crank assembly; 122. Rocker arm; 13. Wire cage frame. Detailed Implementation

[0028] The present invention will be further described in detail below with reference to the accompanying drawings.

[0029] This embodiment discloses a mesh cage frame sewing device, such as... Figure 1-8 As shown, the machine includes a base 10 and a power-providing spindle 12. The base 10 is equipped with a reciprocating needle bar 11, which is provided with a threading needle 1 and a pull-up needle 2. The threading needle 1 is threaded with sewing thread, and the threading needle 1 and the pull-up needle 2 are arranged parallel and spaced apart. The base 10 is equipped with a swingable downward thread-pulling needle 3 and an upward thread-pulling needle 4. The needle bar 11 has a downward state and an upward state.

[0030] In the downward state, the threading needle 1 drives the sewing thread through one side of the wire mesh frame rod, and the lower thread-pulling needle 3 swings upward from the threading needle 1 to pull the sewing thread on the threading needle 1 upward to the upper thread-pulling needle 2.

[0031] In the upward movement, the pull-up needle 2 can hook the sewing thread pulled by the lower thread-pulling needle 3, and the upper thread-pulling needle 4 swings from the pull-up needle 2 towards the thread-threading needle 1 to pull the sewing thread hooked by the pull-up needle 2 back to the thread-threading needle 1. With this structure, when performing sewing work, one can refer to... Figure 3-5 The threading needle 1, carrying the sewing thread, passes under the support platform 9, meaning the sewing thread reaches the bottom of the mesh cage frame. Then, the downward-pulling needle 3 swings, pulling the sewing thread from under the mesh cage frame to the upward-pulling needle 2. Next, the upward-pulling needle 2 moves upward, hooking up the pulled-up sewing thread and wrapping it back around the top of the mesh cage frame. Then, the upward-pulling needle 4 swings, pulling the sewing thread hooked by the upward-pulling needle 2 back to the side of the threading needle 1, meaning it wraps around the top of the mesh cage frame. The machine base 10 is also equipped with a feeding mechanism 5, which cooperates with the mesh frame rod and can drive the mesh frame rod to move. During the process of the upper thread-pulling needle pulling the sewing thread back to the threading needle 1, the threading needle 1 is in the upward position. At this time, in conjunction with the action of the feeding mechanism, that is, the feeding wheel rotates a certain distance, driving the mesh frame to move a certain distance, so that the sewing thread forms a triangular gap between the needle and the mesh. When the threading needle moves downward, it inserts into the gap and performs the next round of thread winding. In this way, one winding and fixing of the sewing thread is completed. Through continuous reciprocating action, the mesh fabric is finally sewn and fixed to the mesh frame by the sewing thread. It should be noted that the distance that the feeding wheel rotates is the interval between the two needles of the threading needle 1. The larger the interval, the sparser the sewing; the smaller the interval, the denser the sewing. Therefore, the distance that the feeding wheel rotates can be appropriate, and the present invention does not impose any restrictions.

[0032] Further details can be found by referring to... Figure 1-2The base 10 is provided with a support platform 9 for supporting the wire mesh frame 13. The support platform 9 is provided with a through hole 901, through hole 901 for threading needle 1 and pull-up needle 2 to pass through. The wire mesh frame 13 can be moved on the support platform 9, and the threading needle 1 and pull-up needle 2 are respectively on both sides of the wire mesh frame 13, continuously rising and falling to sew.

[0033] Furthermore, the swing end of the lower thread-pulling needle 3 is located below the support platform 9, used to wrap the sewing thread around the lower part of the mesh cage frame 13, while the swing end of the upper thread-pulling needle 4 is located above the support platform 9, used to wrap the sewing thread back around the upper part of the mesh cage frame 13.

[0034] Furthermore, the feeding mechanism 5 includes a feeding wheel 501 and a pressure wheel 502. The rotation of the feeding wheel 501 is linked to the movement of the threading needle 1. When the threading needle 1 moves upward, the feeding wheel 501 rotates a certain distance, and friction textures are provided on the feeding wheel 501. Through the above structure, the feeding mechanism 5 is linked to the movement of the needle bar 11. Each cycle of upward and downward movement causes the feeding wheel 501 on the feeding mechanism 5 to rotate a certain distance. The feeding mechanism 5 can ensure that the spacing between the sewing threads is consistent, making sewing convenient and with high sewing strength. The friction textures are used to increase friction and ensure that the wire mesh frame 13 can be stably driven.

[0035] Furthermore, the internal transmission structure of the equipment is described in detail below, which can be referred to... Figure 7-8 The main shaft 12 is equipped with a crank 121, and a rocker arm 122 is mounted on the crank 121. One end of the rocker arm 122 is hinged to the crank 121, and the other end is hinged to the needle rod 11. The main shaft 12 is driven by an external motor. When the main shaft rotates, it drives the crank 121 to rotate, and the crank 121 drives the rocker arm 122 to move, thereby driving the needle rod 11 to move back and forth up and down.

[0036] Furthermore, the main shaft 12 is equipped with a needle cam A6 and a needle cam B7, which are respectively connected to the upper thread-pulling needle 4 and the lower thread-pulling needle 3 via a connecting rod assembly. For details, refer to... Figure 7 The rotation of the needle cam A6 first drives the first transmission rod A601 to move, then drives the second transmission rod A602 to swing via the hinge shaft. The second transmission rod A602 then drives the third transmission rod A603 to swing. The movement of the third transmission rod A603 is then transmitted to the hinge shaft of the lower thread-pulling needle 3, thereby driving the lower thread-pulling needle 3 to swing back and forth. (Refer to...) Figure 8The rotation of the needle cam B7 first drives the first transmission rod B701, then drives the second transmission rod B702 to swing via the corresponding hinge shaft, then drives the third transmission rod B703 to swing, and finally transmits the power to the hinge shaft of the upper thread-pulling needle 4, thereby driving the upper thread-pulling needle 4 to swing back and forth. Through this structure, the movement of the main shaft 12 simultaneously drives the four needles to move in coordination. The coordinated action of the needles is achieved through the cooperation of different cams. The structure is ingenious, and all operations are carried out through mechanical transmission, resulting in high reliability and a long service life. The specific cam design can be flexibly adjusted according to conditions such as the swing angle; this embodiment does not impose limitations on this.

[0037] Furthermore, refer to Figure 7 A feed cam 8 is mounted on the main shaft 12, and the feed cam 8 is connected to the feed wheel 501 via a connecting rod and gears. The rotation of the feed cam 8 is also driven by the main shaft 12, which in turn drives the feed transmission rod 801. The feed transmission rod 801 then transmits the action to the gear assembly 802, which in turn drives the feed wheel 501 to rotate. The connection between the feed transmission rod 801 and the gear assembly 802 uses a one-way ratchet (not shown in the figure), thus converting the reciprocating motion of the feed transmission rod 801 into a one-way rotation. This allows the feed wheel 501 to move forward along with the main shaft, feeding the wire mesh frame. It is important to note that the feed wheel 501 driven by the feed cam 8 is linked to the needle rod 11 driven by the crank 121. Specifically, each time the needle rod 11 moves upward, the feed cam 8 drives the feed wheel 501 to rotate a certain distance, achieving automatic feeding.

[0038] Further details can be found by referring to... Figure 6 The threading needle 1 has a threading hole 1a and a clearance groove 1b above the threading hole 1a. The threading hole 1a is used to thread the sewing thread, and the clearance groove 1b is adapted to the end of the lower thread-pulling needle 3. The sewing thread passes through the threading hole 1a and sews up and down with the movement of the threading needle 1. The clearance groove 1b is located above and adapted to the end of the lower thread-pulling needle 3, so that when the lower thread-pulling needle 3 swings, it can pass through the clearance groove 1b and wrap around to the inside of the sewing thread, thus better hooking the sewing thread. At the same time, both the lower thread-pulling needle 3 and the upper thread-pulling needle 4 have grooved structures at their ends to accurately pull the sewing thread. This allows the sewing thread to be pulled around, improving reliability during high-speed operation and preventing situations where the thread is not hooked.

[0039] 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 design concept of the present invention should be included within the protection scope of the present invention.

Claims

1. A sewing device for a wire mesh frame, comprising a base (10), characterized in that: The base (10) is provided with a lifting threading needle (1) and an upward pulling needle (2), as well as a swingable downward thread pulling needle (3) and an upward thread pulling needle (4). The threading needle (1) moves the sewing thread down along the inner side of the mesh frame to the lower thread-pulling needle (3); the lower thread-pulling needle (3) hooks the sewing thread on the threading needle (1) and moves the sewing thread along the lower side of the mesh frame to the upper pull needle (2); the upper pull needle (2) hooks the sewing thread on the lower thread-pulling needle (3) and pulls the sewing thread up along the outer side of the mesh frame to the upper thread-pulling needle (4); the upper thread-pulling needle (4) hooks the sewing thread on the upper pull needle (2) and pulls the sewing thread back along the upper edge of the mesh frame to the threading needle (1).

2. The mesh cage frame sewing device according to claim 1, characterized in that: The threading needle (1) is provided with a threading hole (1a) and a clearance groove (1b) located above the threading hole (1a). The threading hole (1a) is used to thread the sewing thread, and the clearance groove (1b) is adapted to the end of the thread-pulling needle (3).

3. The mesh cage frame sewing device according to claim 1, characterized in that: The base (10) is provided with a support platform (9) for supporting the wire mesh frame. The support platform (9) is provided with a through hole (901) through which the threading needle (1) and the pull-up needle (2) can pass.

4. The mesh cage frame sewing device according to claim 3, characterized in that: The swing end of the lower thread-pulling needle (3) is located below the support platform (9), and the swing end of the upper thread-pulling needle (4) is located above the support platform (9).

5. The mesh cage frame sewing device according to claim 1, characterized in that: The base (10) is also provided with a feeding mechanism (5), which includes a feeding wheel (501) and a pressing wheel (502). The feeding wheel (501) and the pressing wheel (502) cooperate with the wire mesh frame and can drive the wire mesh frame to move by rotating.

6. The mesh cage frame sewing device according to claim 5, characterized in that: The rotation of the feed wheel (501) is linked to the movement of the threading needle (1). When the threading needle (1) moves upward, the feed wheel (501) rotates a certain distance.

7. A wire mesh frame sewing device according to claim 5, characterized in that: The base (10) is provided with a reciprocating needle bar (11) and a power-providing spindle (12), and the threading needle (1) and the pull-up needle (2) are both located on the needle bar (11).

8. A wire mesh frame sewing device according to claim 7, characterized in that: A crank assembly (121) is provided on the main shaft (12), and a rocker arm (122) is provided on the crank assembly (121). One end of the rocker arm (122) is hinged to the crank assembly (121), and the other end is hinged to the needle rod (11).

9. A wire mesh frame sewing device according to claim 7, characterized in that: The main shaft (12) is provided with a needle cam A (6) and a needle cam B (7), which are connected to the upper thread-pulling needle (4) and the lower thread-pulling needle (3) respectively via a connecting rod assembly.

10. A wire mesh frame sewing device according to any one of claims 7-9, characterized in that: The main shaft (12) is provided with a feed cam (8), which is connected to the feed wheel (501) through a connecting rod and a gear.

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