Anti-needle-collision computer pattern sewing machine

Abstract

The utility model discloses an anti-needle-collision computerized pattern sewing machine which comprises a power-off anti-collision mechanism arranged at the bottom of a machine head, the power-off anti-collision mechanism comprises a shell, an electromagnet arranged at the top end of the shell and a support connected in the shell through a spring in an up-down sliding mode, a protruding column is arranged at the lower end of the support, and a transversely-arranged channel is further arranged on the protruding column. The channel is communicated with the through hole, the two ends of the channel are located on the two sides of the protruding column respectively and are provided with limiting ends, the positions, on the two sides of the through hole, in the channel are each internally connected with a limiting ball in a left-right moving mode, and the lower end of the machine needle is provided with annular limiting grooves corresponding to the two limiting balls; the additionally arranged power-off anti-collision mechanism is simple and reliable in structure, and an existing common computer pattern sewing machine can be conveniently transformed.

Description

Technical Field

[0001] This utility model relates to a computerized pattern making machine with anti-collision pins. Background Technology

[0002] Patent CN215668442U discloses a computerized pattern making machine with anti-collision needles, including a worktable, support rods on both sides of the bottom of the worktable, support feet at the bottom of the support rods, a fixing plate on one side of the support rods, a power supply box on the fixing plate, a mounting base on the top of the worktable, a frame on the mounting base, a control box on the right side of the mounting base, a microprocessor module, a switch control module, and a transmission module arranged sequentially inside the control box, and a distance sensor on the other side of the connecting mechanism. The distance sensor can check the distance between the needle and the shuttle mechanism in real time. In the event of a power failure, the distance sensor transmits the value to the control box, where the microprocessor module processes it and instantly transmits a signal to the motor through the switch control module. The motor will then brake in time and stop instantly in conjunction with the reduction gearbox to avoid collision between the needle and the shuttle mechanism.

[0003] The aforementioned structure has numerous modules and is complex, making it difficult to modify existing computerized pattern making machines. Furthermore, it must be considered that when the computerized pattern making machine loses power, all of the aforementioned modules may also lose power simultaneously, causing the anti-collision mechanism to fail and making it unreliable. Summary of the Invention

[0004] The purpose of this utility model is to overcome the shortcomings of the prior art and provide a computer pattern making machine with anti-collision pins. The added power-off anti-collision mechanism is simple and reliable in structure and is easy to modify for existing ordinary computer pattern making machines.

[0005] The technical solution of this utility model is: a computerized pattern making machine with anti-collision needles, including a power-off anti-collision mechanism set at the bottom of the machine head, wherein the power-off anti-collision mechanism is set corresponding to the position of the machine needle;

[0006] The power-off anti-collision mechanism includes a housing, an electromagnet mounted on the top of the housing, and a bracket that slides vertically within the housing. The bracket has a protruding post at its lower end, and the lower end of the protruding post is truncated cone-shaped. The electromagnet and the bracket have through holes corresponding to the needles, and the needles pass through the power-off anti-collision mechanism.

[0007] The protruding post is also provided with a horizontally arranged channel, which is connected to the through hole. The two ends of the channel are located on both sides of the protruding post and are provided with limiting ends. A limiting ball is moved left and right in the channel on both sides of the through hole. The lower end of the needle is provided with an annular limiting groove corresponding to the two limiting balls.

[0008] The lower end of the outer casing has a concave hole corresponding to the shape of the lower end of the protruding post, and a spring is also provided between the electromagnet and the top of the bracket;

[0009] When the electromagnet is energized, the bracket is located at the upper end of the outer shell under the attraction of the electromagnet, the protrusion is disengaged from the concave hole, and the two limiting balls can move left and right in the channel. At this time, the needle can extend and retract.

[0010] When the electromagnet is de-energized, the bracket is located at the lower end of the outer shell under the action of the spring, the protrusion is inserted into the concave hole, the outer sides of the two limiting balls abut against the inner wall of the concave hole and cannot move, and the two limiting balls are stuck into the annular limiting groove of the needle to limit the needle.

[0011] Furthermore, the electromagnet is connected to a conductive contact, which is connected to the power supply of the computer pattern maker.

[0012] Furthermore, a cover is provided above the electromagnet, which is fixed to the top of the outer shell to limit the electromagnet's position. The cover is also provided with a through hole corresponding to the needle.

[0013] Furthermore, the outer casing is provided with a spring seat, one end of the spring is inserted and fixed in the spring seat, and the other end of the spring passes through the through hole in the middle of the electromagnet and abuts against the bottom of the cover.

[0014] Furthermore, the bottom of the protruding post is also chamfered.

[0015] Furthermore, a guide plate is provided at the top of the bracket, and the outer diameter of the guide plate corresponds to the inner diameter of the outer shell.

[0016] Specifically, the guide plate and the outer shell are integrally molded structures.

[0017] Furthermore, the top of the outer casing is provided with a fixing part, which has a countersunk screw hole, and the outer casing is fixed to the bottom of the machine head by fixing bolts.

[0018] The beneficial effects of this utility model are as follows: In this utility model, the electromagnet of the power-off anti-collision mechanism is connected to the same power source as the computer pattern making machine. When the power is off, the electromagnet loses its magnetism and is de-energized, thereby limiting the needle of the power-off anti-collision mechanism and preventing the needle from extending and retracting under inertia and colliding with the shuttle bed mechanism. The power-off anti-collision mechanism has a simple structure, low manufacturing cost, and is also easy to modify ordinary computer pattern making machines. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the structure of the power interruption anti-collision mechanism of this utility model when it limits the movement of the machine needle;

[0020] Figure 2 This is a schematic diagram of the structure of the power interruption anti-collision mechanism of this utility model when the needle is released from the limit.

[0021] In the diagram: 1. Outer shell; 2. Electromagnet; 3. Bracket; 4. Needle; 5. Channel; 6. Limiting end; 7. Limiting ball; 8. Annular limiting groove; 9. Hole; 10. Spring; 11. Conductive contact; 12. Cover; 13. Guide plate; 14. Fixing part. Detailed Implementation

[0022] The technical solution of this utility model will be further described in detail below through embodiments and in conjunction with the accompanying drawings.

[0023] Combination Figure 1 and Figure 2 As shown, a computerized pattern making machine with anti-collision pins includes a power-off anti-collision mechanism set at the bottom of the machine head, the power-off anti-collision mechanism being set at the position corresponding to the needle 4;

[0024] The power-off anti-collision mechanism includes a housing 1, an electromagnet 2 disposed at the top of the housing 1, and a bracket 3 slidably connected to the housing 1. The lower end of the bracket 3 has a protruding post, the lower end of which is frustoconical. The electromagnet 2 and the bracket 3 have through holes corresponding to the needle 4, and the needle 4 passes through the power-off anti-collision mechanism.

[0025] The protruding post is also provided with a horizontally arranged channel 5, which is connected to the through hole. The two ends of the channel 5 are located on both sides of the protruding post and are provided with limiting ends 6. A limiting ball 7 is connected to the channel 5 on both sides of the through hole and moves left and right respectively. The lower end of the needle 4 is provided with an annular limiting groove 8 corresponding to the two limiting balls 7.

[0026] The lower end of the outer casing 1 has a concave hole 9 corresponding to the shape of the lower end of the protruding post, and a spring 10 is also provided between the top of the electromagnet 2 and the bracket 3;

[0027] When the electromagnet 2 is energized, the bracket 3 is located at the upper end of the outer shell 1 under the attraction of the electromagnet 2, the protrusion is disengaged from the concave hole 9, and the two limiting balls 7 can move left and right in the channel 5. At this time, the needle 4 can extend and retract.

[0028] When the electromagnet 2 is de-energized, the bracket 3 is located at the lower end of the outer shell 1 under the action of the spring 10. The protrusion is inserted into the concave hole 9. The outer sides of the two limiting balls 7 abut against the inner wall of the concave hole 9 and cannot move. The two limiting balls 7 are stuck into the annular limiting groove 8 of the needle 4 to limit the needle 4.

[0029] The electromagnet 2 in the above structure is connected to the same power supply as the computer pattern making machine. When the power is off, the electromagnet 2 is also de-energized and loses its magnetism, thereby limiting the needle 4 under the action of inertia and preventing the needle 4 from extending and retracting and colliding with the shuttle bed mechanism. This structure is simple, has low manufacturing cost, and is also easy to modify ordinary computer pattern making machines.

[0030] Specifically, the bracket 3 is an iron bracket.

[0031] In another embodiment, combined Figure 1 and Figure 2 As shown, the electromagnet 2 is connected to a conductive contact 11, which is connected to the power supply of the computer pattern making machine. When the computer pattern making machine is powered off, the electromagnet 2 is also powered off.

[0032] In another embodiment, combined Figure 1 and Figure 2 As shown, a cover 12 is also provided above the electromagnet 2. The cover 12 is fixed to the top of the outer shell 1 to limit the electromagnet 2. The cover 12 is also provided with a through hole corresponding to the needle 4.

[0033] In another embodiment, combined Figure 1 and Figure 2 As shown, a spring seat is provided inside the outer casing 1. One end of the spring 10 is inserted and fixed inside the spring seat, and the other end of the spring 10 passes through the through hole in the middle of the electromagnet 2 and abuts against the bottom of the cover 12 to compress the volume of the entire power-off anti-collision mechanism.

[0034] In another embodiment, combined Figure 1 and Figure 2 As shown, the bottom of the protruding post is also chamfered to facilitate the insertion of the protruding post into the concave hole 9.

[0035] In another embodiment, combined Figure 1 and Figure 2 As shown, the top of the bracket 3 is also provided with a guide plate 13, the outer diameter of the guide plate 13 corresponding to the inner diameter of the outer shell 1, so as to ensure the stability of the bracket 3 when it moves up and down.

[0036] Specifically, the guide disk 13 and the outer shell 1 are integrally formed.

[0037] In another embodiment, combined Figure 1 and Figure 2 As shown, the top of the outer casing 1 is also provided with a fixing part 14, and the fixing part 14 is provided with a countersunk screw hole. The outer casing 1 is fixed to the bottom of the machine head by fixing bolts.

Claims

1. A computer-controlled pattern maker with anti-collision pins, characterized in that, It includes a power-off anti-collision mechanism set at the bottom of the machine head, the power-off anti-collision mechanism being set at the position corresponding to the needle (4); The power-off anti-collision mechanism includes a housing (1), an electromagnet (2) set at the top of the housing (1), and a bracket (3) slidably connected inside the housing (1). The bracket (3) has a protruding post at the lower end, and the lower end of the protruding post is frustoconical. The electromagnet (2) and the bracket (3) have through holes corresponding to the needle (4), and the needle (4) passes through the power-off anti-collision mechanism. The protruding post is also provided with a horizontally arranged channel (5), which is connected to the through hole. The two ends of the channel (5) are located on both sides of the protruding post and are provided with limiting ends (6). A limiting ball (7) is connected to the channel (5) on both sides of the through hole and moves left and right respectively. The lower end of the needle (4) is provided with an annular limiting groove (8) corresponding to the two limiting balls (7). The lower end of the outer shell (1) has a concave hole (9) corresponding to the shape of the lower end of the protruding post, and a spring (10) is also provided between the top of the electromagnet (2) and the bracket (3); When the electromagnet (2) is energized, the bracket (3) is located at the upper end of the shell (1) under the attraction of the electromagnet (2), the protrusion is disengaged from the concave hole (9), and the two limiting balls (7) can move left and right in the channel (5). At this time, the needle (4) can extend and retract. When the electromagnet (2) is de-energized, the bracket (3) is located at the lower end of the outer shell (1) under the action of the spring (10), the protrusion is inserted into the concave hole (9), the outer sides of the two limiting balls (7) abut against the inner wall of the concave hole (9) and cannot move, and the two limiting balls (7) are stuck into the annular limiting groove (8) of the needle (4) to limit the needle (4).

2. The anti-collision pin computerized pattern making machine as described in claim 1, characterized in that, The electromagnet (2) is connected to a conductive contact (11), which is connected to the power supply of the computer pattern machine.

3. The anti-collision pin computerized pattern making machine as described in claim 2, characterized in that, A cover (12) is provided above the electromagnet (2). The cover (12) is fixed to the top of the outer shell (1) to limit the electromagnet (2). The cover (12) is also provided with a through hole corresponding to the needle (4).

4. The anti-collision pin computerized pattern making machine as described in claim 3, characterized in that, The outer casing (1) is provided with a spring seat. One end of the spring (10) is inserted and fixed in the spring seat, and the other end of the spring (10) passes through the through hole in the middle of the electromagnet (2) and abuts against the bottom of the cover (12).

5. The anti-collision pin computerized pattern making machine as described in claim 4, characterized in that, The bottom of the protruding post is also chamfered.

6. The anti-collision pin computerized pattern making machine as described in claim 5, characterized in that, The top of the bracket (3) is also provided with a guide plate (13), the outer diameter of which corresponds to the inner diameter of the outer shell (1).

7. The anti-collision pin computerized pattern making machine as described in claim 6, characterized in that, The guide plate (13) and the outer shell (1) are integrally formed.

8. The anti-collision pin computerized pattern making machine as described in claim 7, characterized in that, The top of the outer casing (1) is also provided with a fixing part (14), and the fixing part (14) is provided with a countersunk screw hole. The outer casing (1) is fixed to the bottom of the machine head by fixing bolts.

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