A mechanism for adjusting tensioning belt of sewing machine

Abstract

The utility model discloses a mechanism for adjusting the tensioning belt of a sewing machine, comprising a connecting portion with a connecting notch formed on the end surface of one side of a connecting carrier plate, one end of an adjusting carrier plate connected to a connecting carrier plate, a receiving carrier plate comprising a control carrier plate, a working carrier plate, a fixed tensioning belt rod, and a movable tensioning rod, wherein the movable tensioning rod passes through the inner side of the adjusting groove and is connected with an adjusting device at one end; the entire mechanism is connected to a processing head of a sewing machine by utilizing the formed connecting carrier plate. At the same time, the tightness of the tensioning belt is adjusted by utilizing the adjusting device arranged on the adjusting carrier plate. Specifically, the adjustment utilizes the spacing between the movable tensioning rod and the fixed tensioning belt rod, and when the tensioning belt passes through the opening between the two, a downward displacement is achieved by controlling the movable tensioning rod and the fixed tensioning belt rod, so that a tightening effect is achieved on the tensioning belt, so as to achieve the purpose of processing, and effectively solve the existing technical problems.

Description

Technical Field

[0001] The utility model relates to the field of sewing machine accessories, in particular to a mechanism for adjusting a tensioning belt of a sewing machine. Background Art

[0002] A sewing machine is a machine that uses one or more sewing threads to form one or more stitches on the sewing material, so that one or more layers of sewing materials are interwoven or sewn together. The sewing machine can sew fabrics such as cotton, linen, silk, wool, and artificial fibers, as well as products such as leather, plastic, and paper. The stitches are neat, beautiful, flat, and firm, and the sewing speed is fast and easy to use. In particular, it is used to sew elastic bandages at the opening of tubular clothing, so that the opening has a certain degree of elasticity. At present, manual operation is often used in the processing of elastic bandages, which has insufficient processing efficiency and a low qualified rate of finished products. Utility Model Content

[0003] In order to solve the above problems, the utility model proposes a mechanism for adjusting the tensioning belt of a sewing machine, which solves the problem that manual operation control is often used in processing elastic strip tensioning belts, the processing efficiency is insufficient, and the qualified rate of finished products is low.

[0004] The technical solution adopted by the utility model is: a mechanism for adjusting the tensioning belt of a sewing machine, comprising a connecting carrier plate, wherein a connecting portion with a connecting notch is formed on one end surface of the connecting carrier plate;

[0005] An adjustment carrier plate, one end of which is connected to the other end surface of the connection carrier plate;

[0006] A receiving carrier plate, the receiving carrier plate includes a control carrier plate and a working carrier plate, the upper end surface of the control carrier plate is connected to the adjustment carrier plate, and one end surface is provided with a plurality of groups of left and right through adjustment grooves arranged at intervals, and the lower end is connected to the working carrier plate;

[0007] A plurality of fixed tensioning rods are arranged on the end face of one side of the lower end of the receiving carrier away from the working carrier, a movable tensioning rod is arranged on the upper side of the fixed tensioning rod, the movable tensioning rod passes through the inner side of the adjusting groove, and one end of the movable tensioning rod is connected to an adjusting device arranged on the upper side of the working carrier.

[0008] Furthermore, the adjusting device comprises:

[0009] A guide rod, the guide rod vertically passes through the adjustment carrier plate, the lower end of the guide rod is connected to the upper end surface of the working carrier plate, and the upper side is movably connected to an adjustment block located between the adjustment carrier plate and the receiving carrier plate;

[0010] An adjusting rod, wherein the adjusting rod vertically passes through the adjusting carrier plate, and the lower end of the adjusting rod is connected to the upper end surface of the adjusting block.

[0011] Furthermore, a buffer spring is sleeved on the guide rod and located between the adjustment block and the supporting plate.

[0012] Furthermore, the fixed tensioning belt rod is provided with a plurality of groups of first limiting blocks, and a first limiting area is formed between two adjacent groups of the first limiting blocks.

[0013] Furthermore, the movable tightening rod is provided with a plurality of groups of second limit blocks, and a second limit area is formed between two adjacent groups of the second limit blocks.

[0014] Furthermore, a transition carrier is connected between the connecting carrier and the adjusting carrier, and one end of the transition carrier is rotatably connected to the connecting carrier.

[0015] Compared with the prior art, the utility model has the following beneficial effects: the entire mechanism is connected to the processing head of the sewing machine by using the formed connection carrier plate. At the same time, the adjustment device arranged on the adjustment carrier plate is used to adjust the tightness of the bandage. Specifically, the adjustment is made by forming a distance between the active tensioning rod and the fixed tensioning belt rod. When the bandage passes through the opening between the two, the active tensioning rod and the fixed tensioning belt rod are controlled to achieve a downward displacement, so that the bandage is tightened to achieve the purpose of processing, and the existing technical problems are effectively solved. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying creative work.

[0017] Figure 1 It is the overall structure diagram of the utility model;

[0018] Figure 2 It is the overall structure diagram of the utility model;

[0019] Figure 3 It is the overall structure diagram of the utility model.

[0020] The realization of the purpose, functional features and advantages of the utility model will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] It should be noted that all directional indications in the embodiments of the present invention (such as up, down, left, right, front, back...) are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0023] In addition, the descriptions of "first", "second", etc. in the present utility model are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the ability of ordinary technicians in this field to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the present utility model.

[0024] See also Figure 1-3 The utility model discloses a mechanism for adjusting the tensioning belt of a sewing machine, comprising a connecting carrier plate 1, wherein a connecting portion with a connecting notch 10 is formed on one end surface of the connecting carrier plate 1; wherein one end of the adjusting carrier plate 3 is connected to the other end surface of the connecting carrier plate 1; wherein the receiving carrier plate 4 comprises a control carrier plate 41 and a working carrier plate 40, wherein the upper end surface of the control carrier plate 41 is connected to the adjusting carrier plate 3, and one end surface is provided with a plurality of groups of left and right through adjustment grooves 34 arranged at intervals, and the lower end is connected to the working carrier plate 40; at the same time, a plurality of groups of fixed tensioning belt rods 5 are provided on the end surface of the lower end of the control carrier plate away from the working carrier plate 40, and a movable tensioning rod 6 is provided on the upper side of the fixed tensioning belt rod 5, and the movable tensioning rod 6 passes through the inner side of the adjustment groove 34, and one end is connected to an adjustment device provided on the upper side of the working carrier plate 40. When in use, the formed link carrier 1 is used as a part of the connection with the sewing machine head processing line, that is, the connection part with a connection notch at one end is connected to the head, and the other end is connected to one end of the adjustment carrier 3, forming a control carrier 41 composed of a control carrier 41 and a working carrier 40, which can be connected to each other to form a certain angle setting, and the angle formed is preferably 90 degrees, which is the common right-angle iron plate structure at present. The control carrier 41 is formed to be vertically set, and the upper end is connected to the adjustment carrier 3. Of course, according to the attached figure of the specification Figure 1 In the figure, a corner connection part can also be provided at the connection between the adjustment carrier plate 3 and the control carrier plate 4 to facilitate the connection and fixation between the two. At this time, the connection between the two is achieved by passing the formed adjustment groove 34 to the corner connection part of the adjustment carrier plate 3 through the common connection bolts, so as to achieve the purpose of detachable fixed connection between the two. The formed adjustment groove 34 can be set to three groups, including a first adjustment groove 36, a second adjustment groove 37, and a third adjustment groove 35. The second adjustment groove 37 located in the middle is provided for the movable tension rod 6 to pass through and connect with the adjustment device. By controlling the distance between the adjustment device and the upper end surface of the working carrier plate 40, the distance between the movable tension rod 6 and the fixed tension band rod 50 can be adjusted to achieve the stretching of the elastic bandage.

[0025] In the above embodiment, more specifically, the adjusting device includes a guide rod 31, which vertically passes through the adjusting carrier plate 3, and the lower end of which is connected to the upper end surface of the working carrier plate 40, and the upper side is movably connected with an adjusting block 32 located between the adjusting carrier plate 3 and the receiving carrier plate 4; an adjusting rod 30, which vertically passes through the adjusting carrier plate 3, and the lower end of which is connected to the upper end surface of the adjusting block 32, so as to form a guide rod 31 to control the upward and downward movement of the adjusting block 32, and a connecting hole 62 is provided on the formed adjusting block 32, which is used for the coordinated connection with the movable tensioning rod 6 connected to the adjusting device, and the spacing control between the movable tensioning rod 6 and the fixed tensioning belt rod 50 is realized by controlling the upward and downward movement of the adjusting block 32. At the same time, the up and down movement of the adjustment block 32 controls the depth of the adjustment rod 30 entering the adjustment carrier 3. When the distance between the upper end of the adjustment rod 30 and the upper end surface of the adjustment carrier 3 is large, the distance between the adjustment block 32 and the upper side end surface of the working carrier 40 is farther; otherwise, it is closer.

[0026] Specifically, during operation, due to the elasticity of the tightening belt and the influence of the reaction force, an upward thrust is formed on the movable tightening rod 6, and then the adjusting block 32 at the other end has a certain downward force. In order to avoid excessive force on the adjusting rod 30, a buffer spring 33 is sleeved on the guide rod 31 and is located between the adjusting block 32 and the supporting plate 4. By setting the buffer spring 33 with a certain elasticity to generate an up and down restoring force when it is pressed downward by the adjusting block 32, the forces on both ends are equal to a certain extent during operation.

[0027] Specifically, the fixed tensioning belt rod 5 is provided with multiple groups of first limit blocks 51, and a first limit area 50 is formed between two adjacent groups of the first limit blocks 51. The movable tensioning rod 6 is provided with multiple groups of second limit blocks 60, and a second limit area 61 is formed between two adjacent groups of the second limit blocks 60. By setting multiple groups of limit blocks on the fixed tensioning belt rod 5 and the movable tensioning rod 6, corresponding limit areas are formed between the limit blocks, and the tensioning belt is placed on the rod when it is processed. Of course, the formed limit blocks can be set in only two groups to slide freely on the fixed tensioning belt rod 5 and the movable tensioning rod 6, and each group of limit blocks is provided with a fastening nut, and the extrusion force of the fastening nut on the rod is adjusted to achieve the fixed connection of the limit blocks on the rod.

[0028] In order to further realize the flexibility between the connecting carrier plate 1 and the adjusting carrier plate 3, a transition carrier plate 2 is connected between the connecting carrier plate 1 and the adjusting carrier plate 3, and one end of the transition carrier plate 2 is rotatably connected to the connecting carrier plate 1, and is connected at the connecting carrier plate 1 by a connecting bolt 20, and the connecting bolt 20 can be used as a rotating shaft to realize that the transition carrier plate 2 can rotate on the connecting carrier plate 1. At the same time, a raised limiting convex plate 11 is set at the edge of the connecting carrier plate 1 to limit the rotation direction of the transition carrier plate 2; furthermore, a long strip through groove is set at the end surface of the connection between the adjusting carrier plate 3 and the transition carrier plate 2, and the two are fixedly connected by bolts, and the bolts can also control the connection overlap length of the transition carrier plate 2 and the adjusting carrier plate 3 at the fixed position of the long strip through groove.

[0029] The above description is only a preferred embodiment of the utility model, and does not limit the patent scope of the utility model. All equivalent structural changes made by using the contents of the utility model specification and drawings under the utility model concept, or directly / indirectly used in other related technical fields are included in the patent protection scope of the utility model.

Claims

1. A mechanism for adjusting the tensioning belt of a sewing machine, characterized in that: include: A connecting carrier (1), wherein a connecting portion having a connecting notch (10) is formed on one end surface of the connecting carrier (1); An adjustment carrier plate (3), one end of the adjustment carrier plate (3) being connected to the other end surface of the connection carrier plate (1); A receiving carrier plate (4), the receiving carrier plate (4) comprising a control carrier plate (41) and a working carrier plate (40); the upper end surface of the control carrier plate (41) is connected to the adjustment carrier plate (3), and one end surface is provided with a plurality of groups of left and right through adjustment grooves (34) arranged at intervals, and the lower end is connected to the working carrier plate (40); A plurality of fixed tensioning rods (5) are arranged on the end surface of one side of the lower end of the receiving carrier plate (4) away from the working carrier plate (40), and a movable tensioning rod (6) is arranged on the upper side of the fixed tensioning rod (5). The movable tensioning rod (6) passes through the inner side of the adjusting groove (34), and one end of the movable tensioning rod is connected to an adjusting device arranged on the upper side of the working carrier plate (40).

2. A mechanism for adjusting the tensioning belt of a sewing machine according to claim 1, characterized in that: The regulating device comprises: A guide rod (31), the guide rod (31) vertically passes through the adjustment carrier plate (3), the lower end of which is connected to the upper end surface of the working carrier plate (40), and the upper side of which is movably connected with an adjustment block (32) located between the adjustment carrier plate (3) and the receiving carrier plate (4); An adjusting rod (30), the adjusting rod (30) vertically passes through the adjusting carrier plate (3), and the lower end of the adjusting rod (30) is connected to the upper end surface of the adjusting block (32).

3. A mechanism for adjusting the tensioning belt of a sewing machine according to claim 2, characterized in that: A buffer spring (33) is sleeved on the guide rod (31) and is located between the adjustment block (32) and the receiving carrier plate (4).

4. A mechanism for adjusting the tensioning belt of a sewing machine according to claim 2, characterized in that: The fixed tensioning belt rod (5) is provided with a plurality of groups of first limiting blocks (51), and a first limiting area (50) is formed between two adjacent groups of the first limiting blocks (51).

5. A mechanism for adjusting the tensioning belt of a sewing machine according to claim 2, characterized in that: The movable tightening rod (6) is provided with a plurality of groups of second limit blocks (60), and a second limit area (61) is formed between two adjacent groups of the second limit blocks (60).

6. A mechanism for adjusting the tensioning belt of a sewing machine according to claim 3, characterized in that: A transition carrier (2) is connected between the connecting carrier (1) and the adjusting carrier (3), and one end of the transition carrier (2) is rotatably connected to the connecting carrier (1).

Images