Bartacking machine

Abstract

The invention discloses a bar tacking machine which comprises a feeding plate, a presser foot arm, a feeding arm fixedly connected between the feeding plate and the presser foot arm, a feeding seat slidably arranged in the longitudinal direction, a longitudinal driving assembly and a transverse driving assembly which are independently arranged, the longitudinal driving assembly is connected with the presser foot arm to drive the presser foot arm to drive the feeding plate to move in the longitudinal direction, and the transverse driving assembly is connected with the feeding arm to drive the feeding arm to drive the feeding plate to move in the transverse direction. The longitudinal driving assembly and the transverse driving assembly are independently arranged, so that transmission of the feeding plate in the two directions is not interfered with each other, the transmission precision is prevented from being influenced by mutual interference, electric control compensation is not needed, and calculation is convenient during automatic control.

Description

Technical Field

[0001] The invention relates to the technical field of sewing equipment, in particular to a bar tacking machine. Background Art

[0002] Sewing equipment can be divided into bartacking machines, button sewing machines, buttonhole machines, etc. according to the purpose of the stitches. Among them, bartacking machines are mainly used to sew and reinforce certain parts that are prone to unraveling due to tension, such as pocket openings, trouser loops, platoons, buttonhole tails, and straps.

[0003] For example, the publication number CN105926173B discloses a feeding mechanism of a tacking machine and a tacking machine, wherein the feeding mechanism includes a supply rack, a feeding plate, and a supply base for supporting the supply rack and the feeding plate, wherein the supply base includes a base body and a mounting block mounted on the base body, wherein the feeding plate and the supply rack are both fixedly connected to the mounting block, wherein the base body is in an elongated strip shape and has a long slot extending along the length direction of the base body at its front end, wherein the mounting block is movably positioned behind the long slot and the relative distance between the mounting block and the long slot is adjustable, wherein a transmission block connected to an X-direction motion component is provided in the long slot, wherein the rear end of the base body is connected to a Y-direction motion component, and the base body moves forward, backward, left, and right under the drive of the X-direction motion component and the Y-direction motion component. However, the tacking machine also has disadvantages. For example, the X-direction motion component and the Y-direction motion component interfere with each other, and when the Y-direction range of the base body increases, the transmission accuracy in the X-direction is affected, and electronic control compensation is required, which is inconvenient to calculate during automatic control. Summary of the invention

[0004] In view of this, an object of the present invention is to provide a tacking machine in which longitudinal transmission and transverse transmission do not affect each other, no electric control compensation is required, and calculation is convenient during automatic control.

[0005] To achieve the above-mentioned purpose, the present invention provides a tacking machine, including a feed plate, a presser foot arm, a feed arm fixedly connected between the feed plate and the presser foot arm, and a feed seat slidably arranged along the longitudinal direction, the presser foot arm is slidably arranged on the feed seat along the transverse direction, and also includes a longitudinal drive component and a transverse drive component independently arranged from each other, the longitudinal drive component is connected to the presser foot arm to drive the presser foot arm to drive the feed plate to move along the longitudinal direction, and the transverse drive component is connected to the feed arm to drive the feed arm to drive the feed plate to move along the transverse direction.

[0006] Preferably, the lateral drive assembly comprises:

[0007] A transverse rack fixed to the bottom of the feeding arm;

[0008] A transverse gear shaft mounted on the bottom of the feed seat and meshing with the transverse rack;

[0009] A transverse transmission shaft coaxially nested with the transverse gear shaft;

[0010] A fixedly arranged transverse drive motor;

[0011] A belt drive mechanism connected between the lateral drive motor and the lateral transmission shaft.

[0012] Preferably, the lateral transmission shaft is inserted into the lateral gear shaft, and there are anti-rotation protrusions and anti-rotation grooves that cooperate with each other and are used to limit the relative circumferential rotation between the two.

[0013] Preferably, it further includes a feeding table fixedly arranged and slidably matched with the feeding base. The feeding table has a connecting sleeve through which the lateral transmission shaft passes, and two lateral retaining rings are fixedly sleeved on the lateral transmission shaft and respectively abut against the two ends of the connecting sleeve; the feeding base has a limiting sleeve through which the lateral gear shaft passes, and two limiting retaining rings are fixedly sleeved on the lateral gear shaft and respectively abut against the two ends of the limiting sleeve.

[0014] Preferably, there are longitudinal sliding rails and longitudinal sliding grooves that cooperate with each other between the feeding base and the feeding table, and a limiting boss for limiting the vertical movement of the longitudinal sliding rail is provided along the edge of the longitudinal sliding groove.

[0015] Preferably, the longitudinal driving assembly 15 includes:

[0016] A longitudinal transmission shaft that is hinged to the feeding base and is slidably arranged longitudinally;

[0017] A fixedly arranged longitudinal drive motor;

[0018] A longitudinal transmission gear that is fixedly connected to the longitudinal drive motor and meshes with the longitudinal transmission rack provided on the longitudinal transmission shaft.

[0019] Preferably, a receiving groove is provided on one side of the feeding base away from the presser foot arm, a guiding hole is provided at the bottom of the receiving groove, a raised platform is provided at the bottom of the presser foot arm, and the raised platform is slidably arranged horizontally in the guiding hole; a support pin is fixedly provided at one end of the raised platform inserted into the receiving groove, and a roller that rolls along the bottom of the receiving groove is rotatably provided on the support pin.

[0020] Preferably, it further includes a needle plate arranged below the feeding plate and a feeding pressing plate fixedly arranged on the feeding arm. The feeding pressing plate and the feeding plate are arranged in an upper and lower stacked manner, and the feeding pressing plate has an elastic pressing head for pressing the feeding plate vertically downward so that the feeding plate is closely attached to the needle plate.

[0021] Preferably, it further includes:

[0022] A presser foot rod rotatably arranged on the presser foot arm;

[0023] An elastic member connected between the presser foot rod and the feeding base;

[0024] A presser foot connected to the end of the presser foot rod away from the elastic member;

[0025] A pushing block that abuts against the adjusting rod provided on the presser foot rod and is slidably arranged vertically;

[0026] When the pushing block moves downward, the pushing block pushes the pressing foot rod to rotate clockwise relative to the pressing foot arm. One end of the pressing foot rod lifts the pressing foot and the other end compresses the elastic member;

[0027] When the pushing block moves upward, the elastic member jacks up the pressing foot rod to rotate counterclockwise relative to the pressing foot arm, and one end of the pressing foot rod presses down the pressing foot.

[0028] Preferably, the pressing foot arm has an upwardly convex arched structure for stacking fabrics.

[0029] Compared with the background art, the bartack sewing machine provided by the present invention includes a feeding plate, a pressing foot arm, a feeding arm, a feeding seat, a longitudinal driving assembly and a transverse driving assembly. The feeding arm is fixedly connected between the feeding plate and the pressing foot arm. The feeding seat is slidably arranged longitudinally, and the pressing foot arm is slidably arranged transversely on the feeding seat. The longitudinal driving assembly is connected to the pressing foot arm and is used to drive the pressing foot arm to drive the feeding plate to move longitudinally. The transverse driving assembly is connected to the feeding arm and is used to drive the feeding arm to drive the feeding plate to move transversely.

[0030] The longitudinal driving assembly and the transverse driving assembly are independently arranged, so that the transmission of the feeding plate in two directions does not interfere with each other, eliminating the influence on the transmission accuracy due to mutual interference, without the need for electric control compensation, and facilitating calculation during automatic control. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the drawings in the following description are only the embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained according to the provided drawings.

[0032] Figure 1 It is a schematic internal structure diagram of the bartack sewing machine provided by a specific embodiment of the present invention;

[0033] Figure 2 For Figure 1 Another view of

[0034] Figure 3 For Figure 1 Exploded view of

[0035] Figure 4 For Figure 1 Assembly diagram of some components in

[0036] Figure 5 For Figure 1 Structure diagram of the feeding seat in

[0037] Figure 6 For Figure 1Structural diagram of the middle feeding table;

[0038] Figure 7 For Figure 1 Exploded view of the horizontal gear shaft and the horizontal transmission shaft.

[0039] The reference numerals are as follows:

[0040] Feeding plate 11, presser foot arm 12, feeding arm 13, feeding seat 14, longitudinal drive assembly 15, horizontal drive assembly 16, feeding table 17, needle plate 18, feeding pressure plate 19, presser foot rod 20, elastic member 21, presser foot 22, adjusting rod 23, pushing block 24, lifting and pressing crank 25, and lifting and pressing rotating shaft 26;

[0041] Convex platform 121 and roller 122;

[0042] Limit sleeve 141, limit retaining ring 142, longitudinal slide rail 143, receiving groove 144, and guiding hole 145;

[0043] Longitudinal transmission shaft 151, longitudinal drive motor 152, and longitudinal transmission gear 153;

[0044] Longitudinal transmission rack 1511;

[0045] Horizontal rack 161, horizontal gear shaft 162, horizontal transmission shaft 163, horizontal drive motor 164, and belt drive mechanism 165;

[0046] Anti-rotation groove 1621;

[0047] Anti-rotation protrusion 1631;

[0048] Connecting sleeve 171, horizontal retaining ring 172, and longitudinal sliding groove 173;

[0049] Elastic pressing head 191. Detailed implementation manners

[0050] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0051] In order to enable those skilled in the art to better understand the solution of the present invention, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0052] First of all, it should be noted that with the attached Figure 1Taking the coordinate system in it as the standard, the horizontal direction in the text refers to the direction parallel to the X-axis, the vertical direction in the text refers to the direction parallel to the Y-axis, and the vertical direction in the text refers to the direction parallel to the Z-axis.

[0053] An embodiment of the present invention discloses a bartacking machine, as shown in the appendix Figures 1 to 4 shown, which includes a feeding plate 11, a presser foot arm 12, a feeding arm 13, a feeding seat 14, a longitudinal driving assembly 15 and a transverse driving assembly 16. Among them, the feeding plate 11 is in a flat plate shape and is used for placing the fabric during sewing.

[0054] The presser foot arm 12 is used to lift or lower the presser foot 22. The presser foot arm 12 has an upward convex arched structure, and the arched structure is used for stacking the fabric. A number of through weight-reducing holes are provided in the thickness direction of the presser foot arm 12 to avoid the excessive weight of the presser foot arm 12.

[0055] The feeding arm 13 is located below the presser foot arm 12 and is fixedly connected between the feeding plate 11 and the presser foot arm 12, and is used to drive the feeding plate 11 to move synchronously. Bolts can be used for connection between the feeding arm 13 and the feeding plate 11 and between the feeding arm 13 and the presser foot arm 12. There is a height difference at both ends of the feeding arm 13 to make up for the height difference between the presser foot arm 12 and the feeding plate 11, which is beneficial to making the overall structure more compact.

[0056] The feeding seat 14 is slidably arranged longitudinally, and the presser foot arm 12 is slidably arranged transversely on the feeding seat 14. The longitudinal driving assembly 15 is connected to the presser foot arm 12 and is used to drive the presser foot arm 12 to drive the feeding plate 11 to move longitudinally. The transverse driving assembly 16 is connected to the feeding arm 13 and is used to drive the feeding arm 13 to drive the feeding plate 11 to move transversely. The feeding plate 11 can move in both the longitudinal and transverse directions, so as to realize feeding in both the longitudinal and transverse directions and sew an ideal stitch on the fabric.

[0057] In summary, in the present invention, the longitudinal driving assembly 15 and the transverse driving assembly 16 are independently arranged, so that the transmission of the feeding plate 11 in two directions does not interfere with each other, avoiding the influence on the transmission accuracy due to mutual interference, and there is no need for electronic control compensation, which is convenient for calculation when writing the automatic control program.

[0058] The lateral drive assembly 16 includes a lateral rack 161, a lateral gear shaft 162, a lateral transmission shaft 163, a lateral drive motor 164, and a belt drive mechanism 165. The lateral rack 161 extends laterally and is fixed to the bottom of the feeding arm 13. Specifically, the lateral rack 161 is fixed to the bottom of the feeding arm 13 by means of fastening screws. The lateral gear shaft 162 is installed at the bottom of the feeding base 14. One end of the lateral gear shaft 162 is integrally provided with a lateral gear, and the lateral gear meshes with the lateral rack 161. When the lateral gear shaft 162 rotates, the feeding arm 13 is driven to move laterally through the lateral rack 161, and further the feeding arm 13 drives the feeding plate 11 to move laterally. Both the lateral gear and the lateral rack 161 are helical gears. The transmission accuracy of the lateral drive assembly 16 is relatively high, the transmission is relatively reliable, the lateral transmission accuracy will not be lost, and no electronic control compensation is required. Of course, the lateral gear and the lateral rack 161 can also be replaced by other types of gear transmission mechanisms, such as bevel gears, etc.

[0059] The lateral transmission shaft 163 and the lateral gear shaft 162 are coaxially nested, so that the lateral transmission shaft 163 drives the lateral gear shaft 162 to rotate synchronously in the circumferential direction. The lateral drive motor 164 is fixed to the machine shell. The belt drive mechanism 165 is connected between the lateral drive motor 164 and the lateral transmission shaft 163, and is used to transmit the torque of the lateral drive motor 164 to the lateral transmission shaft 163. The belt drive mechanism 165 includes a driving pulley connected to the lateral drive motor 164, a driven pulley fixedly connected to the lateral transmission shaft 163, and a synchronous belt wound between the driving pulley and the driven pulley. Of course, the transmission mode between the lateral drive motor 164 and the lateral transmission shaft 163 is not limited to belt drive, and can also be gear drive, chain drive, etc., which are not specifically limited here.

[0060] The lateral gear shaft 162 can be a hollow shaft. The lateral transmission shaft 163 is inserted into the lateral gear shaft 162, and the lateral gear shaft 162 can move longitudinally relative to the lateral transmission shaft 163. A rotation-preventing protrusion 1631 and a rotation-preventing groove 1621 that cooperate with each other are provided between the lateral transmission shaft 163 and the lateral gear shaft 162, and are used to limit the relative rotation of the lateral transmission shaft 163 and the lateral gear shaft 162 in the circumferential direction, so that the two can rotate synchronously in the circumferential direction. Specifically, the rotation-preventing protrusion 1631 is integrally fixed to two opposite sides of the lateral transmission shaft 163, and the rotation-preventing groove 1621 is provided on two opposite sides of the lateral gear shaft 162. All the rotation-preventing protrusions 1631 and all the rotation-preventing grooves 1621 are in one-to-one correspondence and cooperation along the radial direction. Of course, swapping the installation positions of the rotation-preventing protrusion 1631 and the rotation-preventing groove 1621 does not affect the achievement of the purpose of the present invention.

[0061] The above-mentioned bartack sewing machine further includes a fixedly arranged feeding table 17, which can be specifically arranged on the machine housing. The feeding table 17 is located below the feeding seat 14 and is slidably engaged with the feeding seat 14 longitudinally, enabling the feeding seat 14 to slide longitudinally relative to the feeding table 17. The feeding table 17 provides support for the feeding seat 14.

[0062] The feeding table 17 has a connecting sleeve 171. The connecting sleeve 171 is located at the bottom of the feeding table 17. The transverse transmission shaft 163 passes through the connecting sleeve 171. In this way, the transverse transmission shaft 163 is installed on the feeding table 17, which can not only enable the transverse transmission shaft 163 to rotate relative to the connecting sleeve 171, but also restrict the transverse transmission shaft 163 from moving transversely relative to the feeding table 17. As shown in the appendix Figure 6 As shown, in order to restrict the transverse transmission shaft 163 from moving longitudinally relative to the feeding table 17, two transverse retaining rings 172 are fixedly sleeved on the transverse transmission shaft 163. The two transverse retaining rings 172 respectively abut against the two ends of the connecting sleeve 171, making the transverse transmission shaft 163 fixed longitudinally and only able to drive the transverse gear shaft 162 to rotate synchronously circumferentially. The two transverse retaining rings 172 can specifically be circlips, but are not limited thereto.

[0063] As shown in the appendix Figure 5 As shown, the feeding seat 14 has a limiting sleeve 141. The limiting sleeve 141 is located at the bottom of the feeding table 17. The transverse gear shaft 162 passes through the limiting sleeve 141. In this way, the transverse gear shaft 162 is installed on the feeding seat 14, which can not only enable the transverse gear shaft 162 to rotate relative to the limiting sleeve 141, but also restrict the transverse gear shaft 162 from moving transversely relative to the feeding seat 14. In this way, the transverse gear shaft 162 can only move longitudinally relative to the transverse gear shaft 162. In order to restrict the transverse gear shaft 162 from moving longitudinally relative to the feeding seat 14, two limiting retaining rings 142 are fixedly sleeved on the transverse gear shaft 162. The two limiting retaining rings 142 respectively abut against the two ends of the limiting sleeve 141, enabling the transverse gear shaft 162 to move synchronously longitudinally with the feeding seat 14. The two limiting retaining rings 142 can also specifically be circlips, but are not limited thereto.

[0064] A longitudinally sliding rail 143 and a longitudinally sliding groove 173 that cooperate with each other are provided between the feeding seat 14 and the feeding table 17 for guiding the feeding seat 14 to linearly move longitudinally relative to the feeding seat 14. A limiting boss is provided on the edge of the longitudinally sliding groove 173. The limiting boss abuts against the longitudinally sliding rail 143 vertically to restrict the longitudinally sliding rail 143 from moving vertically relative to the longitudinally sliding groove 173. Specifically, the longitudinally sliding rail 143 can specifically be an integrally arranged T-shaped sliding rail on the feeding seat 14, and the longitudinally sliding groove 173 is specifically a T-shaped sliding groove arranged on the feeding table 17. The T-shaped sliding rail cooperates with the T-shaped sliding groove. Of course, by interchanging the installation positions of the longitudinally sliding rail 143 and the longitudinally sliding groove 173, or changing their structures, such as dovetail type, the purpose of the present invention can still be achieved.

[0065] The longitudinal driving assembly 15 includes a longitudinal transmission shaft 151, a longitudinal driving motor 152, and a longitudinal transmission gear 153. Among them, the longitudinal transmission shaft 151 is hinged to the feeding base 14, and the longitudinal transmission shaft 151 is slidably arranged on the machine housing along the longitudinal direction. The longitudinal driving motor 152 is fixedly arranged on the machine housing. The longitudinal transmission shaft 151 is provided with a longitudinal transmission rack 1511, the longitudinal transmission gear 153 is fixedly connected to the longitudinal driving motor 152, and the longitudinal transmission gear 153 meshes with the longitudinal transmission rack 1511, so that the longitudinal driving motor 152 drives the longitudinal transmission shaft 151 to linearly move along the longitudinal direction. The longitudinal transmission accuracy is relatively high, the transmission is relatively reliable, and no electronic control compensation is required. Of course, the structure of the longitudinal driving assembly 15 is not limited to this.

[0066] A receiving groove 144 is provided on one side of the feeding base 14 away from the presser foot arm 12. A guiding hole 145 is provided at the bottom of the receiving groove 144, and the guiding hole 145 extends along the transverse direction. A protruding platform 121 is provided at the bottom of the presser foot arm 12, and the protruding platform 121 is slidably arranged in the guiding hole 145 along the transverse direction for guiding the presser foot arm 12 to move relative to the feeding base 14 along the transverse direction. A support pin is fixedly provided at one end of the protruding platform 121 inserted into the receiving groove 144, and a roller 122 is rotatably arranged on the support pin. The roller 122 rolls along the bottom of the receiving groove 144, which can not only guide the presser foot arm 12 to move relative to the feeding base 14 along the transverse direction, but also prevent the tendency of the presser foot arm 12 from tilting upwards when the presser foot 22 presses downwards, so as to realize the stable positions of the presser foot 22 and the presser foot arm 12. One roller 122 can be provided at each end of the support pin, and each roller 122 can be axially limited by a circlip.

[0067] The above-mentioned bartack sewing machine further includes a needle plate 18 and a feeding pressure plate 19. The needle plate 18 is arranged in parallel below the feeding plate 11, and the feeding pressure plate 19 is fixedly arranged on the feeding arm 13. The feeding pressure plate 19 and the feeding plate 11 are arranged in an upper and lower stacked manner, and both are fixed to the feeding arm 13 by the same screws. The feeding pressure plate 19 has an elastic pressing head 191, and the elastic pressing head 191 can be in a V shape. The elastic pressing head 191 is used to press down the feeding plate 11 vertically, so that the feeding plate 11 is closely attached to the needle plate 18 to ensure reliable feeding of the feeding plate 11 during the sewing process.

[0068] The above-mentioned bartack sewing machine further includes a presser foot lever 20, an elastic member 21, a presser foot 22 and a pushing block 24. The presser foot lever 20 is rotatably arranged on the presser foot arm 12 through a pivot pin, so that the presser foot lever 20 adjusts the presser foot 22 by using the lever principle. The elastic member 21 is connected between the presser foot lever 20 and the feeding base 14. Specifically, a telescopic rod is arranged between the presser foot lever 20 and the feeding base 14, and the elastic member 21 is sleeved outside the telescopic rod for assisting the presser foot 22 to press down. The elastic member 21 may specifically be a common cylindrical spring, but is not limited thereto. The presser foot 22 is connected to one end of the presser foot lever 20 away from the elastic member 21. An adjusting rod 23 is vertically arranged on the presser foot lever 20, and the pushing block 24 abuts against the adjusting rod 23, and the pushing block 24 is slidably arranged in the machine shell in the vertical direction. The pushing block 24 includes a pushing plate and a sliding column integrally and vertically connected. The sliding column is slidably arranged in the machine shell, and the pushing plate abuts against the adjusting rod 23. Of course, the structure of the pushing block 24 is not limited thereto.

[0069] When the pushing block 24 moves downward, the pushing block 24 pushes the presser foot lever 20 to rotate clockwise relative to the presser foot arm 12. One end of the presser foot lever 20 raises the presser foot 22 and the other end compresses the elastic member 21. When the pushing block 24 moves upward, the elastic member 21 jacks up the presser foot lever 20 to rotate counterclockwise relative to the presser foot arm 12, and one end of the presser foot lever 20 presses down the presser foot 22.

[0070] The presser foot lever 20 is provided with an adjusting hole extending in the vertical direction. The adjusting hole is specifically an oval hole. The adjusting rod 23 is fixed in the adjusting hole by a screw. By adjusting the position of the adjusting rod 23 in the adjusting hole, the lifting height of the presser foot 22 is adjusted.

[0071] The above-mentioned bartack sewing machine further includes a lift-press crank 25 and a lift-press rotating shaft 26. The lift-press crank 25 is V-shaped and has two connecting arms, and is rotatably arranged on the machine shell through a pin shaft. One of the connecting arms of the lift-press crank 25 is provided with a slider, and the slider is installed on the sliding rod of the pushing block 24, so that the lift-press crank 25 drives the pushing block 24 to move up and down. The other connecting arm of the lift-press crank 25 is rotatably connected to the lift-press rotating shaft 26.

[0072] The working principle of the bartack sewing machine provided by the present invention is as follows:

[0073] Longitudinal adjustment action: When the longitudinal drive motor 152 rotates, the longitudinal drive motor 152 drives the longitudinal transmission gear 153 to rotate synchronously. The longitudinal transmission gear 153 drives the longitudinal transmission shaft 151 to move longitudinally through the longitudinal transmission rack 1511. The longitudinal transmission shaft 151 pushes the feeding base 14 to move longitudinally. The feeding arm 13 moves longitudinally synchronously with the feeding base 14, and the feeding plate 11 moves longitudinally relative to the needle plate 18.

[0074] Lateral adjustment action: When the lateral drive motor 164 rotates, the lateral drive motor 164 drives the lateral transmission shaft 163 to rotate synchronously through the belt transmission mechanism 165. The lateral transmission shaft 163 drives the lateral gear shaft 162 to rotate synchronously. The lateral gear shaft 162 drives the feeding arm 13 to move laterally through the lateral rack 161. The presser foot arm 12 moves laterally relative to the feeding base 14 along with the feeding arm 13. The feeding plate 11 moves laterally relative to the needle plate 18.

[0075] Presser foot lifting and lowering action of the presser foot 22: When the lift-press crank 25 drives the push block 24 to move downward, the push block 24 pushes the presser foot rod 20 to rotate clockwise relative to the presser foot arm 12. One end of the presser foot rod 20 lifts the presser foot 22 and the other end compresses the elastic member 21. When the lift-press crank 25 drives the push block 24 to move upward, the elastic member 21 pushes up the presser foot rod 20 to rotate counterclockwise relative to the presser foot arm 12, and one end of the presser foot rod 20 presses down the presser foot 22.

[0076] It should be noted that in this specification, relational terms such as first and second are only used to distinguish one entity from several other entities, and do not necessarily require or imply any actual relationship or order between these entities.

[0077] Specific examples are used in this article to elaborate on the principles and implementation manners of the present invention. The description of the above embodiments is only used to help understand the method and its core idea of the present invention. It should be pointed out that for those of ordinary skill in the art, without departing from the principle of the present invention, several improvements and modifications can be made to the present invention, and these improvements and modifications also fall within the protection scope of the claims of the present invention.

Claims

1. A bartack sewing machine, characterized in that, It includes a feeding plate (11), a presser foot arm (12), a feeding arm (13) fixedly connected between the feeding plate (11) and the presser foot arm (12), and a feeding seat (14) slidably arranged longitudinally. The presser foot arm (12) is slidably arranged transversely on the feeding seat (14). It further includes an independently arranged longitudinal driving assembly (15) and a transverse driving assembly (16). The longitudinal driving assembly (15) is connected to the presser foot arm (12) to drive the presser foot arm (12) to drive the feeding plate (11) to move longitudinally, and the transverse driving assembly (16) is connected to the feeding arm (13) to drive the feeding arm (13) to drive the feeding plate (11) to move transversely.

2. The bartack sewing machine according to claim 1, characterized in that, The transverse driving assembly (16) includes: a transverse rack (161) fixedly arranged at the bottom of the feeding arm (13); a transverse gear shaft (162) installed at the bottom of the feeding seat (14) and meshing with the transverse rack (161); a transverse transmission shaft (163) coaxially nested with the transverse gear shaft (162); a fixedly arranged transverse driving motor (164); a belt transmission mechanism (165) connected between the transverse driving motor (164) and the transverse transmission shaft (163).

3. The bartack sewing machine according to claim 2, characterized in that, The transverse transmission shaft (163) is inserted into the transverse gear shaft (162), and there are rotation-preventing protrusions (1631) and rotation-preventing grooves (1621) that cooperate with each other and are used to limit the relative circumferential rotation of the two between the transverse transmission shaft (163) and the transverse gear shaft (162).

4. The bartack sewing machine according to claim 2, characterized in that, It further includes a feeding table (17) fixedly arranged and slidably cooperating with the feeding seat (14). The feeding table (17) has a connecting sleeve (171) for the transverse transmission shaft (163) to pass through. Two transverse retaining rings (172) that respectively abut against the two ends of the connecting sleeve (171) are fixedly sleeved on the transverse transmission shaft (163). The feeding seat (14) has a limiting sleeve (141) for the transverse gear shaft (162) to pass through. Two limiting retaining rings (142) that respectively abut against the two ends of the limiting sleeve (141) are fixedly sleeved on the transverse gear shaft (162).

5. The bartack sewing machine according to claim 4, characterized in that, There are a longitudinal sliding rail (143) and a longitudinal sliding groove (173) that cooperate with each other between the feeding seat (14) and the feeding table (17). A limiting boss for limiting the vertical movement of the longitudinal sliding rail (143) is arranged along the edge of the longitudinal sliding groove (173).

6. The bartack sewing machine according to any one of claims 1 to 5, characterized in that, The longitudinal driving assembly (15) includes: a longitudinal transmission shaft (151) hinged to the feeding seat (14) and slidably arranged longitudinally; a fixedly arranged longitudinal driving motor (152); a longitudinal transmission gear (153) fixedly connected to the longitudinal driving motor (152) and meshing with a longitudinal transmission rack (1511) arranged on the longitudinal transmission shaft (151).

7. The bartack sewing machine according to any one of claims 1 to 5, characterized in that, On one side of the feeding base (14) away from the presser foot arm (12), there is a receiving groove (144). At the bottom of the receiving groove (144), there is a guiding hole (145). At the bottom of the presser foot arm (12), there is a raised platform (121). The raised platform (121) is slidably arranged in the guiding hole (145) in the transverse direction. At one end of the raised platform (121) inserted into the receiving groove (144), a support pin is fixedly arranged, and a roller (122) that rolls along the bottom of the receiving groove (144) is rotatably arranged on the support pin.

8. The bartack sewing machine according to any one of claims 1 to 5, characterized in that, It further includes a needle plate (18) arranged below the feeding plate (11) and a feeding pressure plate (19) fixedly arranged on the feeding arm (13). The feeding pressure plate (19) and the feeding plate (11) are arranged in an upper and lower stacked manner. The feeding pressure plate (19) has an elastic pressing head (191). The elastic pressing head (191) is used to press the feeding plate (11) vertically downward so that the feeding plate (11) closely adheres to the needle plate (18).

9. The bartack sewing machine according to any one of claims 1 to 5, characterized in that, It further includes: A presser foot rod (20) rotatably arranged on the presser foot arm (12); An elastic member (21) connected between the presser foot rod (20) and the feeding base (14); A presser foot (22) connected to one end of the presser foot rod (20) away from the elastic member (21); A pushing block (24) that abuts against the adjusting rod (23) arranged on the presser foot rod (20) and is slidably arranged vertically; When the pushing block (24) moves downward, the pushing block (24) pushes the presser foot rod (20) to rotate clockwise relative to the presser foot arm (12). One end of the presser foot rod (20) lifts the presser foot (22) and the other end compresses the elastic member (21); When the pushing block (24) moves upward, the elastic member (21) jacks up the presser foot rod (20) to rotate counterclockwise relative to the presser foot arm (12), and one end of the presser foot rod (20) presses down the presser foot (22).

10. The bartack sewing machine according to any one of claims 1 to 5, characterized in that, The presser foot arm (12) has an upwardly convex arched structure, and the arched structure is used for stacking fabrics.

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