Pressing wheel body for sewing machine

Abstract

The utility model relates to the technical field of sewing machine pinch rollers, and discloses a pinch roller body for a sewing machine, which comprises two symmetrically arranged mounting substrates, a presser foot arranged at the front end of each mounting substrate, a top plate arranged at the top end of each mounting substrate, and a pinch roller body arranged between the two mounting substrates, by arranging the fixing rods, the discs, the rotating blocks and the clamping blocks, the pressing wheel body can be effectively limited and fixed between the two discs and fixed between the two side plates, meanwhile, the clamping blocks can slide to the inner sides of the clamping grooves, the pressing wheel body can be clamped and fixed between the two side plates, and therefore the pressing wheel body can be fixed to the inner sides of the clamping grooves. The pressing wheel body is provided with the inserting grooves, the inserting rods arranged at the bottom end are inserted into the inserting grooves, so that the position of the pressing wheel body is effectively limited, meanwhile, when the pressing wheel body needs to be rapidly replaced, the pressing wheel body can be rapidly taken down and replaced only by pulling the inserting pins out of the inner sides of the first through holes and the second through holes, and the using effect is improved.

Description

Technical Field

[0001] This utility model relates to the field of sewing machine pressure roller technology, and in particular to a pressure roller body for a sewing machine. Background Technology

[0002] The presser foot is an important component of a sewing machine. It contacts the fabric through a roller at the bottom. When the sewing machine is running, the roller rotates as the fabric moves, thereby reducing the friction between the presser foot and the fabric. This allows the fabric to move more smoothly under the sewing machine and effectively prevents problems such as fabric slippage or fabric tangling during the sewing process.

[0003] Existing sewing machines, when in use, need to process a variety of different fabrics. For example, when sewing smooth fabrics such as silk, smooth pressure rollers with a surface roughness of ≤0.8μm are required to avoid scratching the fabric. When sewing heavy fabrics such as denim, toothed pressure rollers with a tooth pitch of 2-3mm are needed to increase friction and prevent slippage. When processing leather, pressure rollers with a Teflon coating that is resistant to high temperatures and prevents sticking are required. Traditional pressure rollers cannot meet diverse needs through structural adjustments. Enterprises need to equip each production line with 3-5 different types of pressure rollers, and the entire roller needs to be disassembled and replaced when changing production. However, the pressure roller body of existing sewing machines is not convenient to disassemble and replace quickly, which requires a lot of time to remove the pressure roller from the sewing machine, resulting in low production efficiency.

[0004] Therefore, it is necessary to invent a pressure roller body for sewing machines to solve the above problems. Utility Model Content

[0005] The purpose of this invention is to provide a pressure roller body for sewing machines, in order to solve the problem mentioned in the background art that traditional pressure rollers cannot meet diverse needs through structural adjustments. Enterprises need to equip each production line with 3-5 different pressure rollers, and the entire machine needs to be disassembled and replaced when changing production. However, the existing pressure roller body of sewing machines is not convenient to be quickly disassembled and replaced, and a lot of time is required to remove the pressure roller from the sewing machine, resulting in low production efficiency.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a pressure roller body for a sewing machine, comprising a mounting base plate, two mounting base plates symmetrically arranged, a pressure foot provided at the front end of the mounting base plate, a top plate provided at the top end of the mounting base plate, a pressure roller body provided between the two mounting base plates, a protrusion block fixedly connected to the top end of the mounting base plate, a slot provided on the inner side of the protrusion block, and a bushing provided at the bottom end of the slot;

[0007] Both sides of the pressure roller body are provided with discs. An adsorption pad is provided on the side of the disc closest to the pressure roller body. A rotating block is provided on the other side of the disc. The disc is rotatably positioned outside the rotating block. A snap-fit ​​block is fixedly connected to the other end of the rotating block. The snap-fit ​​block is configured to correspond to the snap-fit ​​groove.

[0008] As a preferred embodiment, a fixing rod is provided through the middle of the disc and the snap-fit ​​block, and a nut is provided at the end of the fixing rod.

[0009] As a preferred embodiment, side plates are symmetrically fixedly connected to both sides of the bottom end of the top plate, and a mounting bracket is fixedly connected to the top end of the top plate. A hidden groove is provided on the side of the side plate, and the hidden groove is correspondingly set with the fixing rod and the nut.

[0010] As a preferred embodiment, the bottom end of the snap-fit ​​block is fixedly connected to a plug rod, the inner side of the plug rod is provided with a second through hole, the bottom end of the snap-fit ​​slot is provided with a slot, the side of the mounting base plate is provided with a first through hole, the slot is correspondingly provided with the plug rod, and the second through hole is correspondingly provided with the first through hole.

[0011] As a preferred embodiment, a plug rod is fixedly connected to the side of the disc near the pressure roller body, and an anti-slip rubber pad is provided on the outer side of the plug rod. The plug rod is located on the inner side of the middle part of the pressure roller body.

[0012] As a preferred embodiment, a connecting rod is provided between the two mounting base plates, and fastening bolts are provided on the side of the mounting base plates. The connecting rod is fixedly connected between the two mounting base plates by the fastening bolts, and the pressure foot is also fixedly connected between the two mounting base plates by the fastening bolts.

[0013] The technical effects and advantages of this utility model are as follows:

[0014] 1. This utility model, by setting a fixing rod, a disc, a rotating block, and a locking block, can effectively limit and fix the pressure roller body between two discs and between two side plates. At the same time, the locking block can slide to the inside of the slot and be inserted into the slot through the insertion rod set at the bottom, thereby effectively limiting the position of the pressure roller body. In addition, when it is necessary to quickly replace the pressure roller body, it is only necessary to pull out the pin from the inside of the first through hole and the second through hole to quickly remove and replace the pressure roller body, thus improving the efficiency of use.

[0015] 2. This utility model features symmetrically arranged discs on the outside of the fixing rod. The insertion rod can be inserted into the inside of the pressure roller body, and the two discs can effectively clamp and fix the pressure roller body. The discs and the pressure roller body can be sequentially sleeved onto the outside of the fixing rod, thereby facilitating quick assembly and fixing of the pressure roller body and enabling rapid use. Attached Figure Description

[0016] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0017] Figure 2 This is a schematic diagram of the structure for mounting the substrate in this utility model;

[0018] Figure 3 This is a schematic diagram of the top plate and side plate in this utility model;

[0019] Figure 4 This is a schematic diagram of the structure of the fixing rod and the disc in this utility model.

[0020] In the picture:

[0021] 1. Mounting base plate; 11. Presser foot; 12. Connecting rod; 13. Protrusion; 131. Slot; 132. Bushing; 133. Slot; 14. Fastening bolt; 15. First through hole;

[0022] 2. Press wheel body;

[0023] 3. Top plate; 31. Mounting bracket; 32. Side plate; 321. Concealed groove; 33. Fixing rod; 331. Nut; 34. Disc; 341. Adsorption pad; 35. Rotating block; 36. Snap-fit ​​block; 37. Insertion rod; 371. Second through hole; 38. Insertion rod; 381. Anti-slip rubber pad. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0025] Please see the appendix Figure 1 - Appendix Figure 4 A pressure roller body for a sewing machine includes a mounting base plate 1. Two mounting base plates 1 are symmetrically arranged. A pressure foot 11 is provided at the front end of the mounting base plate 1. A top plate 3 is provided at the top end of the mounting base plate 1. A pressure roller body 2 is provided between the two mounting base plates 1. A protrusion 13 is fixedly connected to the top end of the mounting base plate 1. A slot 131 is provided on the inner side of the protrusion 13. A bushing 132 is provided at the bottom end of the slot 131.

[0026] Both sides of the pressure roller body 2 are provided with discs 34. An adsorption pad 341 is provided on the side of the disc 34 closest to the pressure roller body 2. A rotating block 35 is provided on the other side of the disc 34. The disc 34 is rotatably positioned on the outside of the rotating block 35. A snap-fit ​​block 36 is fixedly connected to the other end of the rotating block 35. The snap-fit ​​block 36 is correspondingly set with the snap-fit ​​groove 131.

[0027] Specifically, by setting the fixing rod 33, disc 34, rotating block 35, and locking block 36, the pressure roller body 2 can be effectively limited and fixed between the two discs 34 and between the two side plates 32. At the same time, the locking block 36 can slide to the inside of the slot 131 and be inserted into the slot 133 through the insertion rod 37 set at the bottom end, thereby effectively limiting the position of the pressure roller body 2. In addition, when it is necessary to quickly replace the pressure roller body 2, it is only necessary to insert the pin through the first through hole 15 and the second through hole 37. Pulling out from the inside of 1 allows for quick removal and replacement of the pressure roller body 2, improving the efficiency of use. By setting a snap-fit ​​block 36, a rotating block 35, and a disc 34, the rotating block 35 is fixedly connected to the snap-fit ​​block 36, and the disc 34 is rotatably positioned on the outside of the rotating block 35. The snap-fit ​​block 36 can slide on the outside of the fixing rod 33. After the two discs 34 are spliced ​​with the pressure roller body 2, they can slide on the fixing rod 33 to adjust their position, so that the pressure roller body 2 is positioned at the center of the fixing rod 33.

[0028] Please see the appendix Figure 4 A fixing rod 33 is provided through the middle of the disc 34 and the snap-fit ​​block 36, and a nut 331 is provided at the end of the fixing rod 33.

[0029] Specifically, by setting a fixing rod 33, the fixing rod 33 can pass through the snap-fit ​​block 36, the rotating block 35, the disc 34 and the insertion rod 38, and the snap-fit ​​block 36, the rotating block 35, the disc 34 and the insertion rod 38 can slide on the outside of the fixing rod 33, so as to facilitate the adjustment of their positions on the fixing rod 33.

[0030] Please see the appendix Figure 3 and Figure 4 Side plates 32 are symmetrically fixedly connected to the bottom two sides of the top plate 3, and mounting bracket 31 is fixedly connected to the top of the top plate 3. Hidden grooves 321 are provided on the side of the side plates 32, and the hidden grooves 321 are correspondingly set with the fixing rod 33 and the nut 331.

[0031] Specifically, by setting a side plate 32, a hidden groove 321 is provided on the side of the side plate 32, and a hidden groove 321 is provided on the opposite side of both side plates 32, so as to effectively hide the end of the fixing rod 33 and the nut 331. The hidden groove 321 is directly through the side plate 32, so that the fixing rod 33 can pass through the side plate 32, which is convenient for subsequent insertion and fixing.

[0032] Please see the appendix Figure 4The bottom end of the snap-fit ​​block 36 is fixedly connected to the plug rod 37. The inner side of the plug rod 37 is provided with a second through hole 371. The bottom end of the slot 131 is provided with a slot 133. The side of the mounting base plate 1 is provided with a first through hole 15. The slot 133 is correspondingly set with the plug rod 37, and the second through hole 371 is correspondingly set with the first through hole 15.

[0033] Specifically, by setting the plug rod 37, the plug rod 37 can be inserted into the inside of the slot 133, and the second through hole 371 corresponds to the position of the first through hole 15, so that the plug rod 37 can be fixed to the inside of the slot 133 by inserting the pin into the first through hole 15 and the second through hole 371.

[0034] Please see the appendix Figure 4 A rod 38 is fixedly connected to the side of the disc 34 near the pressure roller body 2. An anti-slip pad 381 is provided on the outer side of the rod 38. The rod 38 is located on the inner side of the middle part of the pressure roller body 2.

[0035] Specifically, by setting a plug rod 38, which is fixedly connected to the disc 34, and opening a hole in the middle of the pressure roller body 2 corresponding to the plug rod 38, the plug rod 38 can be inserted into the inner side of the pressure roller body 2. By setting an anti-slip rubber pad 381, which is inserted into the hole in the pressure roller body 2, the insertion strength between the pressure roller body 2 and the plug rod 38 is effectively increased, so that when the pressure roller body 2 rotates, it can effectively drive the plug rod 38 and the disc 34 to rotate.

[0036] Please see the appendix Figure 1 and Figure 2 A connecting rod 12 is provided between the two mounting base plates 1, and a fastening bolt 14 is provided on the side of the mounting base plate 1. The connecting rod 12 is fixedly connected to the two mounting base plates 1 by the fastening bolt 14, and the pressure foot 11 is also fixedly connected to the two mounting base plates 1 by the fastening bolt 14.

[0037] Specifically, a connecting rod 12 is provided, which is located on one side between two mounting base plates 1. The connecting rod 12 can be fixedly connected to the two mounting base plates 1 by fastening bolts 14 provided on both sides. A pressure foot 11 is provided, which is fixedly connected to the other end of the connecting rod 12 and installed and fixed by fastening bolts 14.

[0038] The working principle of this utility model is as follows: The discs 34 on both sides are respectively set on both sides of the pressure roller body 2. The insertion rod 38 is inserted into the hole in the middle of the pressure roller body 2 so that the adsorption pad 341 is tightly attached to the side of the pressure roller body 2. The pressure roller body 2 is placed between the two side plates 32. The snap-fit ​​blocks 36 on both sides are aligned with the hidden grooves 321. The fixing rod 33 is inserted from the hidden groove 321 of one side plate 32. It passes through the snap-fit ​​block 36, the rotating block 25, the disc 34, the insertion rod 38 and the pressure roller body 2 and out from the insertion rod 38 on the other side. Finally, it passes through the hidden groove 321 in the other side plate 32. The nuts 331 are threaded on the end of the fixing rod 33 to fix the above-mentioned components between the two side plates 32.

[0039] When the side plate 32 needs to be installed on the top of the mounting base plate 1, insert the plug rod 37 into the slot 133 so that the snap block 36 is set inside the slot 131. After the plug rod 37 is inserted to the bottom, the second through hole 371 and the first through hole 15 are set accordingly. The plug rod 37 can be fixed inside the slot 133 by using a pin, which facilitates subsequent use. When replacement is needed, pull out the pin and the plug rod 37 can be quickly pulled out of the slot 133, and the entire pressure roller body 2 can be removed for replacement.

[0040] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A pressure roller body for a sewing machine, comprising a mounting base plate (1), wherein two mounting base plates (1) are symmetrically arranged, and a pressure foot (11) is provided at the front end of the mounting base plate (1), characterized in that: The top of the mounting base plate (1) is provided with a top plate (3), and a pressure roller body (2) is provided between the two mounting base plates (1). A protrusion (13) is fixedly connected to the top of the mounting base plate (1). A slot (131) is provided on the inner side of the protrusion (13), and a bushing (132) is provided at the bottom of the slot (131). Both sides of the pressure roller body (2) are provided with discs (34). An adsorption pad (341) is provided on the side of the disc (34) close to the pressure roller body (2). A rotating block (35) is provided on the other side of the disc (34). The disc (34) is rotatably disposed on the outside of the rotating block (35). A snap-fit ​​block (36) is fixedly connected to the other end of the rotating block (35). The snap-fit ​​block (36) is correspondingly disposed with the slot (131).

2. The pressure roller body for a sewing machine according to claim 1, characterized in that: A fixing rod (33) is provided through the middle of the disc (34) and the snap-fit ​​block (36), and a nut (331) is provided at the end of the fixing rod (33).

3. The pressure roller body for a sewing machine according to claim 2, characterized in that: Side plates (32) are symmetrically fixedly connected to the bottom two sides of the top plate (3), and a mounting bracket (31) is fixedly connected to the top of the top plate (3). A hidden groove (321) is provided on the side of the side plate (32), and the hidden groove (321) is correspondingly set with the fixing rod (33) and the nut (331).

4. The pressure roller body for a sewing machine according to claim 3, characterized in that: The bottom end of the snap-fit ​​block (36) is fixedly connected to a plug rod (37). The inner side of the plug rod (37) is provided with a second through hole (371). The bottom end of the snap-fit ​​groove (131) is provided with a slot (133). The side of the mounting base plate (1) is provided with a first through hole (15). The slot (133) is correspondingly provided with the plug rod (37), and the second through hole (371) is correspondingly provided with the first through hole (15).

5. A pressure roller body for a sewing machine according to claim 4, characterized in that: The disc (34) is fixedly connected to a rod (38) on one side near the pressure roller body (2). The outside of the rod (38) is provided with an anti-slip pad (381). The rod (38) is located on the inner side of the middle part of the pressure roller body (2).

6. The pressure roller body for a sewing machine according to claim 5, characterized in that: A connecting rod (12) is provided between the two mounting base plates (1), and a fastening bolt (14) is provided on the side of the mounting base plate (1). The connecting rod (12) is fixedly connected between the two mounting base plates (1) by the fastening bolt (14), and the pressure foot (11) is also fixedly connected between the two mounting base plates (1) by the fastening bolt (14).

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