CN112281335A

CN112281335A - Automatic bayonet pressure adjusting device of computer bayonet carpet machine

Info

Publication number: CN112281335A
Application number: CN202011215830.8A
Authority: CN
Inventors: 梁国杰
Original assignee: Foshan Qichuang Technology Development Co ltd
Current assignee: Foshan Qichuang Technology Development Co ltd
Priority date: 2020-11-04
Filing date: 2020-11-04
Publication date: 2021-01-29

Abstract

The automatic bayonet pressure regulator for computerized carpet bayonet machine is set between the bayonet of carpet machine and two-dimensional moving platform and consists of pressure sensor, bearing sleeve, the first and the second installing seats, ball screw nut pair, connector and step motor. Therefore, the needle gun and the base cloth are always kept at a reasonable compression degree, so that an accurate knitting pattern is obtained, the problem of waste products caused by deformation and missing of carpet patterns is effectively solved, and a high-quality product is obtained.

Description

Automatic bayonet pressure adjusting device of computer bayonet carpet machine

Technical Field

The invention relates to the technical field of computer gun-punched carpets, in particular to an automatic gun-punching pressure adjusting device of a computer gun-punched carpet machine.

Background

The existing computer gun-felting carpet machine mainly comprises a pricking gun, a two-dimensional motion platform and a main controller, wherein the pricking gun is fixed on the two-dimensional motion platform, the main controller carries out servo control on electric components of the pricking gun and the two-dimensional motion platform, the pricking gun drives a cloth penetrating needle and a wire feeding needle to move forwards and backwards at intervals by a motor, an eccentric shaft, a crank link mechanism, a sliding block, a supporting rod and a cloth pressing cover, and woolen yarns are implanted into base cloth.

The gun-felted carpet weaving is a process of implanting carpet wool into a carpet base fabric through a carpet-felting gun to form uniform wool height and combining the wool with different colors into a set pattern by replacing the wool. The carpet base cloth is a basic carrier for weaving the carpet. In order to ensure that the implanted height of the carpet wool is uniform and the set pattern is accurately woven, the base cloth must be tightened and fixed in advance at one time, and the base cloth cannot be moved or tightened again before the whole carpet is finished, so as to ensure that the carpet pattern is not deformed and the implanted wool density is uniform; during the whole carpet weaving process, the carpet needling gun must continuously move and repeatedly pierce the base cloth by the cloth penetrating needle to implant the carpet wool.

But the actual situation is: the base cloth can be expanded and the weight of the base cloth can be increased and the base cloth can sink due to the continuous implantation of the knitting wool during the knitting, and the base cloth can be pressed by the repeated puncture of the needle gun, so that the gradual loosening of the carpet base cloth is quickened. Meanwhile, the forward/backward movement of the base cloth for puncturing and withdrawing by the puncturing gun is driven by a driving mechanism (currently, an air cylinder) and the stroke is fixed, namely the pressure for puncturing the base cloth by the puncturing gun is constant, so that the cloth pressing is too tight when the puncturing gun starts, and the warp/weft local compression and stretching of the carpet base cloth are also factors for loosening the carpet base cloth. Due to the existence of all the factors, even if the carpet base cloth is tightened again in advance, the carpet base cloth is inevitably loosened gradually along with the carpet weaving process, and the result is that the cloth is pressed by a needling gun in the early stage of the carpet manufacturing process, and the base cloth is not pressed tightly after the carpet base cloth becomes loose in the later stage, so that the carpet pattern is deformed or the stitches are missed and the implanted wool density is uneven, and the product quality is seriously influenced to generate waste products.

Disclosure of Invention

The technical problem to be solved by the invention is to provide an automatic pressure adjusting device for a carpet-embroidering machine of a computer gun, which can automatically adjust the pressure of the carpet-embroidering machine on a carpet base cloth in the process of weaving a carpet so as to solve the problems of deformation of carpet patterns and uneven density of implanted wool caused by inevitable gradual loosening of the carpet base cloth along with repeated puncturing and continuous implantation of the wool of the carpet-embroidering machine and ensure that a high-quality product is obtained.

The technical solution proposed by the present invention is as follows:

an automatic pressure regulator for the needling gun of computerized carpet-needling machine is composed of needling unit 1, rotary seat, motor, two-dimensional moving platform, main controller of carpet machine, base, eccentric shaft, slide block 1, connecting rod 1, slide block 2, connecting rod 2, cloth-penetrating needle, thread-feeding needle, cloth-pressing cover, four parallel and equispaced supporting rods between front end of needling unit and cloth-pressing cover, and base cloth, the needling unit fixed to base via rotary seat, eccentric shaft connected to output shaft of motor via bevel gear mechanism, motor fixed to base, horizontally arranged thread-penetrating needle passing through and fastened to slide block 1, slide block 1 connected to one end of eccentric shaft via connecting rod 1, slide block 1 sleeved on and connected to two supporting rods on upper horizontal plane, and thread-feeding needle horizontally arranged fixed to slide block 2, the 2 nd slide block is eccentrically and movably connected with the other end surface of the eccentric shaft through a 2 nd connecting rod, the 2 nd slide block is sleeved in and is in sliding connection with two support rods positioned on a lower horizontal plane, the 1 st mounting seat, the 2 nd mounting seat, a pressure sensor, a stepping motor, a ball screw nut pair consisting of a ball screw and a nut, and a guide rod are also arranged, the 1 st mounting seat and the 2 nd mounting seat are fixedly connected with a base, the 1 st mounting seat is provided with the stepping motor, the nut is arranged on a two-dimensional motion platform, one end of the ball screw is connected with an output shaft of the stepping motor through a connector, an inner hole of the 2 nd mounting seat is provided with a bearing sleeve, the bearing is sleeved with the bearing sleeve, the other end of the ball screw is connected with the bearing, an induction head of a pressure sensor arranged on the No. 2 mounting seat extends into an inner hole and is in contact connection with the outer end face of the bearing sleeve, and two guide rods which are fixedly arranged between the No. 1 mounting seat and the No. 2 mounting seat and are parallel to each other are in sliding connection with the two-dimensional motion platform.

Compared with the prior art, the invention has the following remarkable effects:

the automatic bayonet pressure adjusting device of the computer bayonet carpet machine applies the pressure sensor, adopts the bearing sleeve with the bearing, the ball screw nut pair and the stepping motor, can sense the pressure applied to the cloth pressing cover by the base cloth when the bayonet punctures the base cloth in real time and automatically adjust the working position of the bayonet according to the preset requirement, so that the pressure applied to the cloth pressing cover by the base cloth is always kept in a reasonable range. In the whole carpet manufacturing process, the pressure of the base cloth on the cloth pressing cover is adjusted along with the gradual loosening of the carpet base cloth, so that the needling gun and the base cloth are always kept at a reasonable compression degree, an accurate knitting pattern is obtained, the problem that waste products are caused due to carpet pattern deformation and needle leakage is effectively solved, and a high-quality product is ensured to be obtained.

Drawings

FIG. 1 is a schematic front view of an automatic adjusting device for pressure of a computerized carpet bayonet, showing the bayonet withdrawn state.

FIG. 2 is a schematic top view of the automatic adjusting device for pressure of a computerized carpet gun for carpet-embroidering shown in FIG. 1, wherein the automatic adjusting device is arranged in a cloth-pressing state.

The designations in the figures illustrate the following:

1. pricking a gun; 1-1. transposition; 1-2. eccentric shaft; 2. a motor; 3. a two-dimensional motion platform; 4. a base; 4-1, a 1 st mounting seat; 4-2, a guide rod; 4-3, mounting base 2; 4-3-1, inner hole; 5. a stepping motor; 6. a ball screw; 6-1. a connector; 6-2, a nut; 6-3, bearing; 6-4 bearing sleeves; 7. a pressure sensor; 7-1, an induction head; 8. a cloth pressing cover; 8-1. supporting rods; 9. 1, a first slide block; 9-1, the 1 st connecting rod; 9-2, threading a cloth needle; 10. a 2 nd slide block; 10-1, 2 nd connecting rod; 10-2, feeding the thread needle; 11. a base cloth.

Detailed Description

The invention is illustrated in further detail by the following examples.

Referring to fig. 1 and 2, an automatic pressure adjusting device for a computerized carpet-embroidering machine, comprises a embroidering gun 1, a rotary seat 1-1, a motor 2, a two-dimensional motion platform 3, a carpet main controller, a base 4, an eccentric shaft 1-2, a first sliding block 9, a first connecting rod 9-1, a second sliding block 10, a second connecting rod 10-1, a cloth-threading needle 9-2, a thread-feeding needle 10-2, a cloth-pressing cover 8, four mutually parallel and equidistantly arranged support rods 8-1 fixed between the front end of the embroidering gun 1 and the cloth-pressing cover 8, and a base cloth 11, wherein the embroidering gun 1 is fixedly connected with the base 4 through the rotary seat 1-1, the eccentric shaft 1-2 of the embroidering gun 1 is connected with an output shaft of the motor 2 through a bevel gear transmission mechanism, the motor 2 is fixed on the base 4, the horizontally arranged cloth-threading needle 9-2 penetrates and is fastened on the first sliding block 9, the 1 st sliding block 9 is eccentrically and movably connected with one end face of an eccentric shaft 1-2 through a 1 st connecting rod 9-1, the 1 st sliding block 9 is sleeved and is in sliding connection with two supporting rods 8-1 positioned on the upper horizontal plane, a horizontally placed wire feeding needle 10-2 is fixedly connected with a 2 nd sliding block 10, the 2 nd sliding block 10 is eccentrically and movably connected with the other end face of the eccentric shaft 1-2 through a 2 nd connecting rod 10-1, the 2 nd sliding block 10 is sleeved and is in sliding connection with two supporting rods 8-1 positioned on the lower horizontal plane, the 1 st mounting seat 4-1, the 2 nd mounting seat 4-3, a pressure sensor 7, a stepping motor 5, a ball screw nut pair consisting of a ball screw 6 and a nut 6-2 and a guide rod 4-2 are further arranged, the 1 st mounting seat 4-1 and the 2 nd mounting seat 4-2 are fixedly connected with a base 4, the 1 st mounting seat 4-1 is provided with a stepping motor 5, a nut 6-2 is arranged on a two-dimensional motion platform 3, one end of a ball screw 6 is connected with an output shaft of the stepping motor 5 through a connector 6-1, an inner hole 4-3-1 of the 2 nd mounting seat 4-3 is provided with a bearing sleeve 6-4 in sliding connection, the bearing sleeve 6-4 is sleeved with a bearing 6-3, the other end of the ball screw 6 is connected with the bearing 6-3, an induction head 7-1 of a pressure sensor 7 arranged on the 2 nd mounting seat 4-3 extends into the inner hole 4-3-1 and is in contact connection with the outer end face of the bearing sleeve 6-4, and two guide rods 4-2 which are fixedly arranged between the 1 st mounting seat 4-1 and the 2 nd mounting seat 4-3 and are parallel to each other are in sliding connection with the two-dimensional.

The automatic bayonet pressure adjusting device of the computer bayonet carpet machine has the working process as follows:

when the device is started, the main controller of the carpet machine controls the needling machine 1 to move forward to enable the cloth pressing cover 8 to contact the base cloth 11 and stop and keep the position after pressing a certain depth. Meanwhile, the motor 2 works to rotate the eccentric shaft 1-2, and the 1 st slide block 9 and the 2 nd slide block 10 are driven to act through the 1 st connecting rod 9-1 and the 2 nd connecting rod 10-1 respectively, so that the cloth penetrating needle 9-2 and the thread feeding needle 10-2 start to work. The cloth threading needle 9-2 firstly pierces the base cloth 11 to make the warp/weft of the base cloth 11 shift to form a hole, then the thread feeding needle 10-2 feeds the wool to the other side of the base cloth 11 through the hole of the base cloth pierced by the cloth threading needle 9-2, then the cloth threading needle 9-2 and the thread feeding needle 10-2 withdraw from the base cloth 11, and the warp/weft of the base cloth 11 is used for physical reset and clamping the wool to complete a needle step. The cloth pressing cover 8 of the bayonet 1 is kept still at the cloth pressing position, the bayonet 1 is driven to translate to the next preset needle position through the two-dimensional motion platform 3 which can move in the X-axis direction and the Y-axis direction, and the motion process is continuously repeated until the carpet manufacturing is finished.

In this embodiment, the pressure sensor 7 is a piezoresistive pressure sensor, the model is 1031C, in the carpet weaving process, when the stepping motor 5 works to drive the ball screw 6 to rotate, the pricking gun 1 is pushed to move forward through the ball screw nut pair, when the cloth pressing cover 8 contacts the base cloth 11 in the tensioned state, a certain pressure is applied, and the pressure is increased continuously as the pricking gun 1 moves forward continuously, the pressure is transmitted to the sensing head 7-1 of the pressure sensor 7 through the cloth pressing cover 8 → the support rod 8-1 → the pricking gun 1 → the swivel base 1-1 → the base 4 → the 1 st mounting seat 4-1 → the stepping motor 5 → the connector 6-1 → the ball screw 6 → the bearing sleeve 6-4, the magnitude of the pressure directly affects the deformation degree of the sensing head 7-1, and further changes the magnitude of the signal current output by the pressure sensor 7, the magnitude of the output signal current is proportional to the magnitude of the pressure. The pressure sensor 7 transmits an output signal to a main controller of the carpet machine, and when the preset pressure value is reached, the main controller controls the stepping motor 5 to stop working and keep still, and the carpet embroidery manufacturing is started.

In the embroidering process, the pressure sensor 7 can always feed back the pressure applied to the base cloth 11 at the current position of the cloth pressing cover 8 by the cloth pressing cover 8, when the pressure fluctuation value exceeds a set range, the main controller can drive the stepping motor 5 to work to drive the ball screw 6 to correspondingly advance or retreat in a micro-adjustment manner, so that the pressure value between the cloth pressing cover 8 and the base cloth 11 is kept constant in a micro range, and the manufacturing quality and speed of the carpet are greatly improved.

Claims

1. An automatic pressure adjusting device of a computer carpet gun for needling comprises a needling gun (1), a rotary seat (1-1), a motor (2), a two-dimensional motion platform (3), a carpet main controller, a base (4), an eccentric shaft (1-2), a 1 st sliding block (9), a 1 st connecting rod (9-1), a 2 nd sliding block (10), a 2 nd connecting rod (10-1), a cloth penetrating needle (9-2), a thread feeding needle (10-2), a cloth pressing cover (8), four mutually parallel and equidistantly arranged support rods (8-1) and a base cloth (11), wherein the four support rods are fixed between the front end part of the needling gun (1) and the cloth pressing cover (8), the support rods are arranged in parallel and are arranged at equal intervals, the needling gun (1) is fixedly connected with the base (4) through the rotary seat (1-1), the eccentric shaft (1-2) of the needling gun (1) is connected with an output shaft of the motor (2) through a bevel, the motor (2) is fixed on the base (4), the horizontally placed cloth penetrating needle (9-2) penetrates and is fastened on the 1 st sliding block (9), the 1 st sliding block (9) is in eccentric movable connection with one end face of the eccentric shaft (1-2) through the 1 st connecting rod (9-1), the 1 st sliding block (9) is sleeved with and is in sliding connection with the two supporting rods (8-1) positioned on the upper horizontal plane, the horizontally placed wire feeding needle (10-2) is fixedly connected with the 2 nd sliding block (10), the 2 nd sliding block (10) is in eccentric movable connection with the other end face of the eccentric shaft (1-2) through the 2 nd connecting rod (10-1), and the 2 nd sliding block (10) is sleeved with and is in sliding connection with the two supporting rods (8-1) positioned on the lower horizontal plane, and the cloth penetrating needle is characterized in that: the device is also provided with a 1 st mounting seat (4-1), a 2 nd mounting seat (4-3), a pressure sensor (7), a stepping motor (5), a ball screw nut pair consisting of a ball screw (6) and a nut (6-2), and a guide rod (4-2), wherein the 1 st mounting seat (4-1) and the 2 nd mounting seat (4-2) are fixedly connected with a base (4), the 1 st mounting seat (4-1) is provided with the stepping motor (5), the nut (6-2) is arranged on a two-dimensional motion platform (3), one end of the ball screw (6) is connected with an output shaft of the stepping motor (5) through a connector (6-1), an inner hole (4-3-1) of the 2 nd mounting seat (4-3) is provided with a sliding connected bearing sleeve (6-4), the bearing sleeve (6-4) is sleeved with the bearing (6-3), the other end of the ball screw (6) is connected with a bearing (6-3), an induction head (7-1) of a pressure sensor (7) arranged on a No. 2 mounting seat (4-3) extends into an inner hole (4-3-1) and is in contact connection with the outer end face of a bearing sleeve (6-4), and two guide rods (4-2) which are fixedly arranged between the No. 1 mounting seat (4-1) and the No. 2 mounting seat (4-3) and are parallel to each other are in sliding connection with the two-dimensional motion platform (3).