Hemming machine positioning mechanism for waist support cushion production

By designing a positioning mechanism for the sewing machine, and by adjusting the drive block, lifting plate, and positioning strip, the problem of the sewing machine being unable to fix the corners of the cushion was solved, achieving stable sewing and protective fixation of the cushion, thus improving the sewing quality and performance.

CN223766544UActive Publication Date: 2026-01-06DONGGUAN ZILING IND CO LTD
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Patent Information

Application Number
CN202422913248.9
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-11-28
Publication Date
2026-01-06
Estimated Expiration
2034-11-28

AI Technical Summary

Technical Problem

Existing sewing machines cannot effectively secure the edges and corners of car seat cushions, resulting in poor sewing quality, which can easily lead to missed seams and filling leakage, affecting product quality.

Method used

A positioning mechanism for a sewing machine used in the production of lumbar support cushions has been designed, including a sewing machine table, a drive block, a lifting platform, a pressure plate, a first positioning strip, and a second positioning strip. The mechanism adapts to cushions of different sizes by adjusting the horizontal movement of the drive block and the lifting height of the lifting plate. The mechanism achieves double fixation inside and outside by adjusting the angle and position of the first and second positioning strips. It combines the protective contact of the telescopic airbag strip and the contact pad, and is equipped with a thin-film pressure sensor to monitor the fixation effect.

Benefits of technology

It achieves stable fixation of the car seat cushion, avoids loosening and gaps during the sewing process, protects the surface of the cushion, and ensures the quality of the sewing and ease of use.

✦ Generated by Eureka AI based on patent content.

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    Figure CN223766544U_ABST
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Abstract

The utility model discloses a hemming machine positioning mechanism for waist support cushion production, and relates to the technical field of automobile accessory machining. The hemming machine comprises a hemming machine table, a driving block, a lifting table, a pressing plate, a first positioning strip, a second positioning strip and a hemming machine body, the hemming machine body is fixed to one side of the upper end of the hemming machine table, a guide groove allowing the driving block to horizontally move is formed in one side of the upper end of the hemming machine table, and a supporting column is fixedly installed at the top of the driving block and fixedly connected with the lifting table. Automobile cushions of different sizes are adjusted and matched through horizontal movement of the driving block and ascending and descending of the lifting plate, in order to improve the fixing effect of the automobile cushions, the inclination angle of the first positioning strip can be adjusted according to the position of a hem so as to be attached to the outer side of the hem, and the hem can be conveniently fixed. And the second positioning strip can horizontally move to fit and fix the inner side of the hem, so that the positioning effect is effectively ensured through internal and external dual fixation.
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Description

TECHNICAL FIELD

[0001] The utility model belongs to the field of automobile accessory processing, specifically relates to a hemming machine positioning mechanism for waist support cushion production. BACKGROUND

[0002] Automobile accessories are various units that constitute the whole car and a kind of product serving the car. There are many types of automobile accessories, and with the improvement of people's living standards, people's consumption of cars is also increasing, and the market for automobile accessories is also becoming larger and larger.

[0003] Automobile seat cushions are the main consumer goods of car owners, and it is particularly important to choose a comfortable and practical automobile seat cushion according to the season. There are automobile seat cushions made of different materials on the market today, such as real leather, microfiber, artificial leather, nylon, chemical fiber, artificial wool and polyester wool. The seat cushion is comfortable and has a decorative effect, and the shape is mostly square, circular and oval. The material is cotton, velvet, satin, nylon or hemp cloth. The most comfortable material is memory foam material.

[0004] During the processing of the automobile seat cushion, a hemming machine is needed to hem the automobile seat cushion. However, the existing hemming machine cannot fix the edges of the automobile seat cushion when hemming, and the automobile seat cushion may move up and down with the steel needle during the hemming process, resulting in uneven stitching of the edges of the automobile seat cushion, which affects the hemming effect of the automobile seat cushion and causes the automobile seat cushion to leak, so that the quality of the product cannot be guaranteed, and the use of the automobile seat cushion is inconvenient. Therefore, the utility model is proposed. UTILITY MODEL CONTENTS

[0005] The technical problem to be solved by the utility model is to overcome the shortcomings of the prior art and provide a hemming machine positioning mechanism for waist support cushion production.

[0006] To solve the above technical problems, the basic idea of the technical scheme of the utility model is as follows:

[0007] A hemming machine positioning mechanism for waist support cushion production, comprising a hemming machine table, a driving block, a lifting table, a pressing plate, a first positioning strip, a second positioning strip and a hemming machine body, the upper end of the hemming machine table is fixed with the hemming machine body on one side, a guide groove is formed on the upper end of the hemming machine table for horizontal movement of the driving block, a support column is fixedly installed on the top of the driving block, an electric push rod is fixedly installed in the support column, the extension end of the electric push rod penetrates through the top of the support column and is fixed with the lifting plate, an electric telescopic rod is symmetrically fixed on the upper end of the lifting plate, the extension ends of the two electric telescopic rods penetrate into the lower end of the lifting plate and are fixed with the pressing plate.

[0008] The lower end of the pressing plate is respectively provided with a first positioning strip and a second positioning strip, a resisting area for resisting the waist support cushion is arranged between the first positioning strip and the second positioning strip, a non-slip plate for resisting the bottom of the waist support cushion is arranged below the resisting area, the upper end of the non-slip plate is provided with embedded grooves at equal intervals for installing non-slip strips, the non-slip strips are made of rubber material, the non-slip plate is symmetrically arranged with the central axis of the accommodation groove, and the two non-slip strips are respectively arranged on the front and rear sides of the accommodation groove.

[0009] The middle part of the lifting plate and the pressing plate is provided with an accommodation hole for the needle of the edge sewing machine body.

[0010] Optionally, a cavity for installing a lead screw is arranged on one side of the inside of the edge sewing machine table, a threaded sleeve is arranged on the outside of the lead screw, a connecting sleeve is fixedly arranged on the outside of the threaded sleeve, the upper end of the connecting sleeve is fixed to the driving block through a screw, a guide block is fixed to the lower end of the connecting sleeve, the guide block is slidingly connected to the guide rail on the bottom of the cavity, one end of the lead screw is arranged on the side wall of the cavity through a bearing, and the other end of the lead screw is fixed to the output shaft of the stepping motor in the machine box through the lead screw.

[0011] Optionally, the driving block has a longitudinal section H-shaped structure, and a plurality of first rolling balls are arranged in the middle part of the two ends of the driving block.

[0012] Optionally, an accommodation cavity for the guide rod is arranged in the inside of the two side walls of the support column, a guide shaft is fixedly arranged in the middle part of the accommodation cavity, and the outer dimension of the guide shaft matches the inner dimension of the middle strip-shaped groove of the guide rod, and a dustproof telescopic sleeve is arranged between the support column and the lifting plate.

[0013] Optionally, a mounting sleeve is fixed to one side of the bottom of the lifting plate, a laser distance measuring sensor is fixed to the inside of the mounting sleeve through a screw, and a positioning sheet is arranged below the laser sensor, and the positioning sheet is fixed to the outside of the support column through the screw.

[0014] Optionally, a positioning disc is fixed to each of the front and rear sides of one end of the pressing plate, a through hole for the first positioning strip is arranged in the middle part of the two positioning discs, a positioning hole for the positioning bolt is arranged on the outside of the two positioning discs at equal intervals, and the positioning disc is fixed to the first positioning strip through the positioning bolt.

[0015] Optionally, a sliding rail is fixed to the lower end of the pressing plate, a sliding block is slidingly connected to the lower end of the sliding rail, the sliding block and the sliding rail are fixed through a mounting bolt, the contact surface between the sliding block and the pressing plate is provided with a second rolling ball, and the bottom of the sliding block is fixed to the second positioning strip.

[0016] Optionally, the opposite surfaces of the first positioning strip and the second positioning strip are fixed with elastic air bag strips, the outer surfaces of the two elastic air bag strips are fixed with abutting pads, the abutting pads are internally provided with thin film pressure sensors, the two elastic air bag strips are communicated with air injection pipes through air nozzles, the air injection pipes penetrate through the machine box and are communicated with the dual-purpose air pump, and the machine box is fixed at the upper end of the lifting plate.

[0017] After the technical scheme is applied, the utility model has the following beneficial effects compared with the prior art, of course, any product implementing the utility model does not necessarily need to simultaneously achieve all the advantages described below:

[0018] 1、The utility model discloses a drive block's horizontal movement and the lifting plate's lifting adjust the adaptation of different size's car seat cushion, and in order to the fixed effect of car seat cushion is promoted, the first positioning strip can adjust the inclination angle of the first positioning strip according to the position of the edge, to the outside of the edge, the second positioning strip can move horizontally to adapt to the inside of fixedly bonded edge, so that the double fixed effect of inside and outside effectively guarantees the positioning effect.

[0019] 2、The utility model discloses a set up elastic air bag strip and abutting pad mutually cooperate the contact surface of car seat cushion and play the protection effect, avoid the surface of positioning strip to the surface of the skin of the seat cushion and produce the damage, and in order to know the fixed effect, set up thin film pressure sensor in the inside of abutting pad, when abutting, can know the pressure value of abutting through thin film pressure sensor, when the value is less than the predetermined threshold value, then show that the fixed effect is poor.

[0020] The specific embodiments of the utility model will be described in further detail below with reference to the drawings. DRAWINGS

[0021] The drawings in the following description are only some embodiments, and other drawings can also be obtained according to the drawings without paying creative labor for ordinary skilled in the art.

[0022] In the drawings:

[0023] Figure 1 It is the front view cross section structure schematic view of the utility model;

[0024] Figure 2 It is the combined parts structure appearance schematic view of the utility model in antiskid plate and antiskid strip;

[0025] Figure 3 It is Figure 1 The part structure schematic view of A in the drawing;

[0026] Figure 4 It is Figure 1 The part structure schematic view of B in the drawing;

[0027] Figure 5 As Figure 1 the C part structure schematic view in figure;

[0028] Figure 6 As Figure 1 the D part structure schematic view in figure;

[0029] Figure 7 As Figure 1 the E part structure schematic view in figure.

[0030] In the drawings, the components represented by each reference numeral are listed as follows:

[0031] 1, the edge machine table; 2, driving block; 3, guide groove; 4, support column; 5, electric push rod; 6, lifting plate; 7, pressing plate; 8, first positioning bar; 9, second positioning bar; 10, anti-skid plate; 11, anti-skid bar; 12, let hole; 13, edge machine body; 14, screw rod; 15, threaded sleeve; 16, connecting sleeve; 17, guide block; 18, guide rail; 19, stepping motor; 20, first ball; 21, guide rod; 22, guide shaft; 23, dustproof telescopic sleeve; 24, mounting sleeve; 25, laser ranging sensor; 26, positioning sheet; 27, positioning disc; 28, positioning bolt; 29, positioning hole; 30, slide rail; 31, mounting bolt; 32, second ball; 33, sliding block; 34, telescopic air bag bar; 35, abutting pad; 36, thin film pressure sensor; 37, air nozzle; 38, gas injection pipe; 39, dual-purpose air pump.

[0032] It should be noted that these drawings and written descriptions are not intended to limit the scope of the concept of the utility model in any way, but to illustrate the concept of the utility model to those skilled in the art by referring to specific embodiments. DETAILED DESCRIPTION

[0033] The utility model will be further explained in detail in combination with the drawings.

[0034] Please refer to Figures 1 to 7 , the utility model provides a kind of technical scheme: a kind of edge machine positioning mechanism for waist support seat production, including edge machine table 1, driving block 2, lifting platform, pressing plate 7, first positioning bar 8, second positioning bar 9 and edge machine body 13, the upper end side of edge machine table 1 is fixed with edge machine body 13, the upper end side of edge machine table 1 is equipped with the guide groove 3 for the horizontal movement of driving block 2, the top of driving block 2 is fixedly installed with support column 4, the inside of support column 4 is fixed with electric push rod 5, the telescopic end of electric push rod 5 penetrates the top of support column 4 and is fixed with lifting plate 6, the upper end of lifting plate 6 is fixed with electric telescopic rod symmetrically, the telescopic end of two electric telescopic rods is all penetrated to the lower end of lifting plate 6 and is fixed with pressing plate 7;

[0035] The lower end of the pressing plate 7 is respectively provided with a first positioning strip 8 and a second positioning strip 9, a resisting area for resisting the waist support cushion is arranged between the first positioning strip 8 and the second positioning strip 9, a non-slip plate 10 for resisting the bottom of the waist support cushion is arranged below the resisting area, the upper end of the non-slip plate 10 is provided with embedded grooves for installing non-slip strips 11 at equal intervals, the non-slip strips 11 are made of rubber material, and the non-slip plate 10 is symmetrically arranged about the central axis of the embedded groove, and the two non-slip strips 11 are respectively arranged on the front and rear sides of the embedded groove.

[0036] The middle part of the lifting plate 6 and the pressing plate 7 is provided with a positioning hole 12 for the needle of the overlock machine body 13 to work, considering that the automobile cushion needs to be sewn by the overlock machine during processing, but the existing overlock machine cannot fix the edge of the automobile cushion when sewing the automobile cushion, and the automobile cushion is easily moved up and down with the steel needle, which causes the uneven sewing of the edge of the automobile cushion, thereby causing the poor sewing effect of the automobile cushion, the leakage of the filling in the automobile cushion, the unguaranteed quality of the product and the inconvenience of using the automobile cushion, the first positioning strip 8 and the second positioning strip 9 of the pressing plate 7 play a positioning role in sewing the automobile cushion, prevent the multi-layer automobile cushion from loosening during processing, and adjust the automobile cushion of different sizes by the horizontal movement of the driving block 2 and the lifting of the lifting plate 6, and in order to improve the fixing effect of the automobile cushion, the first positioning strip 8 can adjust the inclination angle of the first positioning strip 8 according to the position of the sewing to fit the outside of the sewing, and the second positioning strip 9 can be horizontally moved to fit the inside of the fixed sewing, so that the double fixing of the inside and the outside effectively guarantees the positioning effect.

[0037] The inside of the overlock machine table 1 is provided with a cavity for installing a lead screw 14, the outside of the lead screw 14 is provided with a threaded sleeve 15, the outside of the threaded sleeve 15 is fixedly provided with a connecting sleeve 16, the upper end of the connecting sleeve 16 is fixed to the driving block 2 through a screw, the lower end of the connecting sleeve 16 is fixedly provided with a guide block 17, the guide block 17 is slidingly connected to a guide rail 18 at the bottom of the cavity, one end of the lead screw 14 is installed on the side wall of the cavity through a bearing, the other end of the lead screw 14 is fixed to the output shaft of a stepping motor 19 in the cavity through penetration, and the lead screw 14, the stepping motor 19, the threaded sleeve 15 and the driving block 2 are matched with each other to horizontally move the support column 4, so that the device can adjust the use position of the support column 4 according to the width of the sewn cushion.

[0038] The longitudinal section of the driving block 2 is designed in a H-shaped structure, a plurality of first ball bearings 20 are arranged at the middle of the two ends of the driving block 2, and the first ball bearings 20 can reduce the friction between the driving block 2 and the surface of the seam base.

[0039] The inside of the two side walls of the support column 4 is provided with a clearance cavity for the guide rod 21 to pass through, a guide shaft 22 is fixed in the middle of the clearance cavity, the outer dimension of the guide shaft 22 matches the inner dimension of the middle strip-shaped slot of the guide rod 21, a dustproof telescopic sleeve 23 is arranged between the support column 4 and the lifting plate 6, the guide rod 21 and the guide shaft 22 cooperate to guide the lifting of the lifting plate 6, so that the longitudinal movement of the lifting plate 6 cannot be deviated.

[0040] The bottom side of the lifting plate 6 is fixed with a mounting sleeve 24, a laser ranging sensor 25 is fixed in the mounting sleeve 24 through a screw, a positioning sheet 26 is arranged below the laser sensor, and the screw is fixed to the outside of the support column 4 through the positioning sheet 26. The laser ranging sensor 25 cooperates with the positioning sheet 26 to detect the lifting height and the lowering height of the lifting plate 6, which helps the user to adjust the height of the lifting plate 6 according to the ranging result, so as to adapt to the fixing of automobile seat cushions with different thicknesses.

[0041] The front and rear sides of one end of the pressing plate 7 are fixed with positioning discs 27, through holes are arranged in the middle of the two positioning discs 27 for the hinge connection of the first positioning strip 8, and positioning holes 29 are arranged at equal intervals on the outside of the two positioning discs 27 for the screwing of positioning bolts 28. The positioning disc 27 is fixed with the first positioning strip 8 through the positioning bolt 28. The positioning disc 27 cooperates with the positioning bolt 28 to screw into different positioning holes 29, which fixes the first positioning strip 8 that rotates to adjust the inclination angle. This structure allows the first positioning strip 8 to adjust the inclination angle according to the outer arc of the automobile seat cushion, thereby increasing the fitting degree and ensuring the fixing effect.

[0042] The lower end of the pressing plate 7 is fixed with a sliding rail 30, a sliding block 33 is slidingly connected to the lower end of the sliding rail 30, the sliding block 33 and the sliding rail 30 are fixed through a mounting bolt 31, the contact surface of the sliding block 33 and the pressing plate 7 is provided with a second ball bearing 32, the bottom of the sliding block 33 is fixed with a second positioning strip 9, and the mounting bolt 31 fixes the sliding block 33 sliding on the sliding rail 30. Moving the sliding block 33 allows the second positioning strip 9 to adjust the position of the inner side of the seat cushion.

[0043] The opposite surfaces of the first positioning strip 8 and the second positioning strip 9 are fixed with the stretchable air bag strips 34, the outer surfaces of the two stretchable air bag strips 34 are fixed with the abutting pads 35, the inside of the abutting pad 35 is provided with the diaphragm pressure sensor 36, the two stretchable air bag strips 34 are communicated with the air injection pipes 38 through the air nozzles 37, the two air injection pipes 38 penetrate the machine box and are communicated with the dual-purpose air pump 39, the machine box is fixed on the upper end of the lifting plate 6, the stretchable air bag strips 34 and the abutting pads 35 are matched to protect the contact surface of the car seat cushion, avoid the damage of the positioning strip surface to the surface of the leather seat cushion, and in order to know the fixing effect, the diaphragm pressure sensor 36 is arranged in the inside of the abutting pad 35, that is, the abutting pressure value can be known through the diaphragm pressure sensor 36 when abutting, and when the value is less than a predetermined threshold, the fixing effect is poor.

[0044] The utility model is not limited to the above-mentioned embodiment, anyone should know the structural change made under the inspiration of the utility model, any technical scheme with the same or similar utility model falls into the protection scope of the utility model. The utility model is not described in detail, and the technical, shape and structure parts are known technology.

Claims

1. A waist support seat cushion production overlock machine positioning mechanism, comprising an overlock machine table (1), a driving block (2), a lifting table, a pressing plate (7), a first positioning strip (8), a second positioning strip (9) and an overlock machine body (13), characterized in that, The upper end side of the serging machine table (1) is fixed with a serging machine body (13), a guide groove (3) is arranged on the upper end side of the serging machine table (1) for horizontal movement of the driving block (2), the top of the driving block (2) is fixedly provided with a support column (4), the inside of the support column (4) is fixedly provided with an electric push rod (5), the telescopic end of the electric push rod (5) penetrates through the top of the support column (4) and is fixed with a lifting plate (6), the upper end of the lifting plate (6) is fixedly provided with an electric telescopic rod, the telescopic ends of the two electric telescopic rods penetrate through the lower end of the lifting plate (6) and are fixed with a pressing plate (7); The lower end of the pressing plate (7) is respectively provided with a first positioning strip (8) and a second positioning strip (9), a resisting area for resisting the waist support cushion is arranged between the first positioning strip (8) and the second positioning strip (9), a non-slip plate (10) for resisting the bottom of the waist support cushion is arranged below the resisting area, the upper end of the non-slip plate (10) is equally spaced to be provided with an embedded groove for mounting a non-slip strip (11), the material of the non-slip strip (11) is rubber, the non-slip plate (10) is symmetrically arranged with the central axis of the accommodation groove, and the two non-slip strips (11) are respectively arranged on the front and rear sides of the accommodation groove. The middle part of the lifting plate (6) and the pressing plate (7) is provided with an accommodation hole (12) for the needle work of the serging machine body (13).

2. The positioner of the overlock machine for the production of the waist support seat cushion according to claim 1, characterized in that, The inside of the serging machine table (1) is provided with a cavity for mounting a lead screw (14), the outside of the lead screw (14) is provided with a threaded sleeve (15), the outside of the threaded sleeve (15) is fixedly provided with a connecting sleeve (16), the upper end of the connecting sleeve (16) is fixed with the driving block (2) through screws, the lower end of the connecting sleeve (16) is fixedly provided with a guide block (17), the guide block (17) is slidingly connected to a guide rail (18) at the bottom of the cavity, one end of the lead screw (14) is mounted on the side wall of the cavity through a bearing, and the other end of the lead screw (14) is fixed with an output shaft of a stepping motor (19) in the cavity.

3. The positioner of the overlock machine for the production of the waist support seat cushion according to claim 1, characterized in that, The driving block (2) is designed in a longitudinal section H-shaped structure, and a plurality of first balls (20) are arranged in the middle of the two ends of the driving block (2).

4. The positioner of the overlock machine for the production of the waist support seat cushion according to claim 1, characterized in that, The inside of the two side walls of the support column (4) is provided with an accommodation cavity for penetrating the guide rod (21), a guide shaft (22) is fixedly arranged in the middle of the accommodation cavity, and the outer dimension of the guide shaft (22) matches the inner dimension of the middle strip-shaped groove of the guide rod (21), and a dustproof telescopic sleeve (23) is arranged between the support column (4) and the lifting plate (6).

5. The positioning mechanism for a sewing machine used in the production of a lumbar support cushion according to claim 1, characterized in that, The bottom side of the lifting plate (6) is fixedly provided with a mounting sleeve (24), a laser ranging sensor (25) is fixedly arranged in the mounting sleeve (24) through screws, and a positioning sheet (26) is arranged below the laser sensor, and the positioning sheet (26) is fixed with screws outside the support column (4).

6. The positioner of the over waist edger for the production of the seat cushion according to claim 1, characterized in that, One end of the pressing plate (7) is fixed with positioning disc (27) on both sides, the middle of two positioning disc (27) is provided with through hole for the first positioning bar (8) hinged, and the outer part of two positioning disc (27) is provided with positioning hole (29) for positioning bolt (28) screwed into, the positioning disc (27) is fixed with the first positioning bar (8) through the positioning bolt (28).

7. The positioning mechanism for a sewing machine used in the production of a lumbar support cushion according to claim 1, characterized in that, The lower end of the pressing plate (7) is fixed with slide rail (30), the lower end of slide rail (30) is slidingly connected with sliding block (33), the sliding block (33) and the slide rail (30) are fixed through mounting bolt (31), the contact surface of the sliding block (33) and the pressing plate (7) is provided with second ball (32), the bottom of the sliding block (33) is fixed with the second positioning bar (9).

8. The positioner of the over waist edger for the production of the seat cushion according to claim 1, characterized in that, The opposite surface of the first positioning bar (8) and the second positioning bar (9) is fixed with telescopic air bag strip (34), the outer surface of two telescopic air bag strips (34) is fixed with abutting pad (35), the inside of the abutting pad (35) is provided with diaphragm type pressure sensor (36), two telescopic air bag strips (34) are communicated with gas injection pipe (38) through air nozzle (37), two gas injection pipes (38) penetrate the machine box and are communicated with dual-purpose air pump (39), the machine box is fixed on the upper end of the lifting plate (6).