A cloth pressing and stopping assembly and embroidery frame

Abstract

This utility model discloses a fabric pressing block assembly and an embroidery frame for an embroidery machine, solving the problem of poor fabric pressing effect in areas far from the fabric pressing driver. The fabric pressing block assembly includes a lower fabric pressing block and an upper fabric pressing block positioned above the lower pressing block. The upper pressing block is driven downwards by the fabric pressing driver and cooperates with the lower pressing block to clamp the fabric. It also includes an electromagnet installed on one of the lower and upper pressing blocks and a magnetic base installed on the other. The electromagnet and the magnetic base cooperate to clamp the fabric. Because the electromagnet and the magnetic base clamp the fabric, they can be positioned in the middle section between the lower and upper pressing blocks, avoiding excessive gaps between the lower and upper pressing blocks in the middle section, which would otherwise result in poor fabric clamping effect.

Description

Technical Field

[0001] This utility model belongs to the technical field of embroidery equipment, specifically relating to embroidery frames for embroidery machines. Background Technology

[0002] Currently, embroidery frames on the market are equipped with automatic fabric feeding and receiving devices, as well as fabric pressing devices. After the automatic fabric feeding and receiving devices complete the automatic fabric feeding, the fabric pressing device presses the fabric firmly onto the embroidery frame. The fabric pressing device includes a fabric pressing baffle assembly, which consists of a lower fabric pressing baffle and an upper fabric pressing baffle located above the lower baffle. The upper fabric pressing baffle is driven downwards by a fabric pressing driver and cooperates with the lower baffle to press the fabric firmly. Because the fabric pressing baffle assembly is relatively long, and the number of fabric pressing drivers is limited (usually two are spaced apart on both sides of the length), the area closer to the fabric pressing drivers has a better fabric pressing effect, while the area farther away from the drivers has a poorer pressing effect. Utility Model Content

[0003] To address the shortcomings of existing technologies, the present invention aims to provide a fabric pressing block assembly and an embroidery frame for an embroidery machine, thereby solving the problem of poor fabric pressing effect in areas of the fabric pressing block assembly that are far from the fabric pressing driver.

[0004] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:

[0005] This utility model also provides a fabric pressing block assembly, including a lower fabric pressing block and an upper fabric pressing block disposed above the lower fabric pressing block. The upper fabric pressing block is driven to press down by a fabric pressing driver and cooperates with the lower fabric pressing block to clamp the fabric. It also includes an electromagnet installed on one of the lower fabric pressing block and the upper fabric pressing block, and a magnetic suction seat installed on the other of the lower fabric pressing block and the upper fabric pressing block. The electromagnet cooperates with the magnetic suction seat to clamp the fabric.

[0006] Preferably, the electromagnet is installed on the upper part of the pressing cloth, and the magnetic base is installed on the lower part of the pressing cloth.

[0007] Preferably, the upper pressure plate is provided with an upper through hole, the electromagnet is provided with an electromagnet mounting plate, the electromagnet body passes through the upper through hole, and the electromagnet mounting plate is installed at the upper end of the upper through hole.

[0008] Preferably, the lower pressing block is provided with a lower through hole, and the magnetic seat is provided with a base plate and a boss, wherein the boss moves through the lower through hole, and the base plate is located below the lower through hole.

[0009] Preferably, at least two electromagnets are installed in the middle section of the upper pressing block, and at least two magnetic seats are correspondingly installed in the middle section of the lower pressing block; and / or, the combination of electromagnets and magnetic seats is offset from the pressing drive in the length direction of the pressing block assembly.

[0010] Preferably, the electromagnet is a de-energized electromagnet.

[0011] Preferably, the fabric pressing driver is a fabric pressing cylinder, which is located above the upper fabric pressing stop, and the cylinder push rod is connected to the upper fabric pressing stop.

[0012] Preferably, a pressing cylinder is connected to each end of the length of the pressing cloth upper section.

[0013] Preferably, the pressing cylinder is installed on the pressing cylinder mounting base, the pressing cylinder mounting base is connected to the lower pressing block and connected to the cylinder top rod of the pulling cylinder, and the pulling cylinder pulls the lower pressing block and the upper pressing block to move horizontally.

[0014] In addition, an embroidery frame for an embroidery machine is also provided, including the aforementioned fabric pressing assembly.

[0015] The present invention adopts the above technical solution and has the following technical effects:

[0016] The fabric clamping assembly includes a lower fabric clamping block and an upper fabric clamping block located above the lower fabric clamping block. The upper fabric clamping block is driven to press down by the fabric clamping driver and cooperates with the lower fabric clamping block to clamp the fabric. In order to solve the problem of poor fabric clamping effect in areas far from the fabric clamping driver, an electromagnet can be set in the area far from the fabric clamping driver to cooperate with the magnetic suction seat to clamp the fabric. For example, it can be set in the middle section between the lower fabric clamping block and the lower fabric clamping block to avoid the gap between the lower fabric clamping block and the lower fabric clamping block being too large in the middle section, which would cause the fabric clamping effect to deteriorate.

[0017] The electromagnet is installed on the upper pressing plate, and the magnetic suction seat is installed on the lower pressing plate. Before pressing the fabric, the distance between the upper pressing plate and the lower pressing plate is relatively large, and no magnetic attraction occurs between them. When the upper pressing plate is driven down by the pressing driver and cooperates with the lower pressing plate to clamp the fabric, the distance between the electromagnet and the magnetic suction seat is smaller, and a larger magnetic attraction can be generated, so that the electromagnet and the magnetic suction seat cooperate to clamp the fabric.

[0018] Furthermore, the electromagnet is a de-energized electromagnet, which demagnetizes when energized and becomes magnetized when de-energized. This avoids the problem of conventional energized electromagnets being energized for a long time, which affects the lifespan of the electromagnet, and also prevents the sudden release of the magnetic base due to a sudden power outage.

[0019] Because the lower pressure plate has a through hole, and the magnetic base has a base plate and a boss, the boss moves through the through hole, and the base plate is located below the through hole. The boss can move up and down within the through hole, and the height of the boss is greater than the depth of the through hole, so it can extend upwards through the upper end of the through hole to cooperate with the electromagnet to clamp the fabric.

[0020] In addition, a pressure cylinder is connected to each end of the pressure plate to ensure that the pressure force on both sides is relatively balanced.

[0021] To avoid insufficient pressing force in the middle section of the pressing block assembly, at least two electromagnets are installed in the middle section of the upper pressing block, and at least two magnetic seats are installed in the middle section of the lower pressing block, corresponding to the positions of the electromagnets. Therefore, in the middle section of the pressing block assembly, multiple spaced electromagnets and magnetic seats work together to clamp the fabric, ensuring a relatively balanced pressing force in the middle section.

[0022] These features and advantages of the present invention will be disclosed in detail in the following specific embodiments and accompanying drawings. Attached Figure Description

[0023] The utility model will be further described below with reference to the accompanying drawings:

[0024] Figure 1 This is a schematic diagram of the structure of the embroidery frame of this utility model;

[0025] Figure 2 This is an exploded structural diagram of the medium-pressure fabric baffle assembly of this utility model;

[0026] Figure 3 yes Figure 2 Enlarged view of point A in the middle;

[0027] Figure 4 yes Figure 2 Enlarged view at point B in the middle;

[0028] Figure 5 yes Figure 2 Enlarged view at point C;

[0029] Figure 6 This is a schematic diagram showing the open state of the fabric pressing component;

[0030] Figure 7 This is a schematic diagram of the closed state of the fabric pressing baffle assembly;

[0031] Reference numerals: Cloth pressing baffle assembly 1, lower cloth pressing baffle 11, lower cloth pressing surface 111, lower inclined surface 112, lower through hole 113, upper cloth pressing baffle 12, upper cloth pressing surface 121, upper inclined surface 122, upper through hole 123, cylinder connecting plate 124, electromagnet 13, electromagnet body 131, electromagnet mounting plate 132, magnetic base 14, base plate 141, boss 142, anti-rotation surface 143, cloth pressing cylinder 15, cloth pressing cylinder mounting base 16, top mounting plate 161, bottom mounting plate 162, vertical mounting plate 163, cloth pulling cylinder 17, cloth pulling cylinder mounting base 18, cloth pulling cylinder fixing clamp 181, pulling plate guide plate 182, rear cloth pressing assembly 2, front cloth pressing assembly 3, rear cloth feeding roller 4, front cloth taking-up roller 5. Detailed Implementation

[0032] The technical solutions of the present utility model will be explained and described below with reference to the accompanying drawings. However, the following embodiments are only preferred embodiments of the present utility model and not all of them. Other embodiments obtained by those skilled in the art based on the embodiments in the implementation methods without creative effort are all within the protection scope of the present utility model.

[0033] Those skilled in the art will understand that, without conflict, the features in the following embodiments and implementations can be combined with each other.

[0034] The terminology used in this invention is for the purpose of describing particular embodiments only and is not intended to limit the invention. For example, terms such as "upper," "lower," "front," "rear," "left," and "right," which indicate orientation or positional relationship, are based solely on the orientation or positional relationship shown in the accompanying drawings and are used only for the convenience of describing the invention and simplifying the description. They do not indicate or imply that the device / component referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore should not be construed as limiting the invention.

[0035] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "fixation," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood according to the specific circumstances.

[0036] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0037] Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features.

[0038] like Figure 1As shown, the embroidery frame of the embroidery machine includes a fabric pressing assembly 1, which is located on the left and right sides of the embroidery frame. It also includes a front fabric pressing assembly 3 and a rear fabric pressing assembly 2, as well as an automatic fabric feeding and receiving device, which includes a front fabric receiving roller 5 and a rear fabric feeding roller 4.

[0039] This embodiment mainly describes the structure of the fabric pressing assembly 1, while the structures of the front fabric pressing assembly 3, the rear fabric pressing assembly 2, and the automatic fabric feeding and receiving device can be referred to the prior art.

[0040] like Figures 1 to 7 The illustrated fabric pressing assembly 1 includes a lower fabric pressing block 11 and an upper fabric pressing block 12 located above the lower fabric pressing block. The upper fabric pressing block 12 is driven downward by a fabric pressing driver and cooperates with the lower fabric pressing block 11 to press the fabric tightly. Due to the limited number of fabric pressing drivers, such as their corresponding locations on the left and right ends of the upper fabric pressing block 12, the fabric pressing effect in the middle area is poor. To address the problem of poor fabric pressing effect in areas far from the fabric pressing drivers, the assembly also includes an electromagnet 13 installed on one of the lower and upper fabric pressing blocks and a magnetic base 14 installed on the other. The electromagnet 13 and the magnetic base 14 cooperate to close and open the fabric pressing assembly 1; when closed, it clamps the fabric, and when open, it releases the fabric. Furthermore, the electromagnet 13 and the magnetic base 14 are respectively set in the middle section of the fabric pressing block assembly 1. That is, the electromagnet and the magnetic base are set in the area far away from the fabric pressing driver to clamp the fabric. Therefore, it can avoid the gap between the lower pressing block in the middle section and the lower pressing block being too large, which would cause the fabric clamping effect to deteriorate.

[0041] The upper pressing cloth has an upper pressing cloth surface 121 on its bottom surface and a lower pressing cloth surface 111 on its top surface. Both the upper and lower pressing cloth surfaces 121 and 111 have raised textures to increase the force between them and the cloth. Additionally, the lower pressing cloth surface 111 has a lower inclined surface 112 at its edge, and the upper pressing cloth surface 121 has an upper inclined surface 122 at its edge. The lower inclined surface 112 and the upper inclined surface 122 work together to prevent the cloth from slipping out from between the upper and lower pressing cloth surfaces 121 and 111.

[0042] In some embodiments, the electromagnet 13 is mounted on the upper pressing block 12, and the magnetic base 14 is mounted on the lower pressing block 11. The upper pressing block has an upper through hole 123, for example, a circular hole. The electromagnet 13 has an electromagnet mounting plate 132. The electromagnet body 131 is cylindrical and passes through the upper through hole 123. The electromagnet mounting plate 132 is mounted above the upper through hole, specifically by bolts. The lower pressing block has a lower through hole 113. The magnetic base 14 has a base plate 141 and a boss 142. The boss 142 moves through the lower through hole 113, and the base plate 141 is located below the lower through hole. The bottom surface of the lower pressing block has a corresponding groove with a limited height. The base plate can move up and down within the groove, ensuring that the boss 142 does not detach from the bottom of the lower through hole. Furthermore, the height of the boss is greater than the depth of the lower through hole, allowing it to extend upwards through the upper end of the lower through hole, thus engaging with the electromagnet to clamp the fabric. The lower through hole is a circular hole with a notched plane, the magnetic base is circular, and an anti-rotation surface 143 is provided on one radial side, which mates with the notched plane.

[0043] In this embodiment, the electromagnet 13 is a de-energized electromagnet. It is suitable for scenarios requiring long-term magnetic attraction to the magnetic holder, with occasional momentary release upon energization. Before pressing the fabric, the distance between the upper and lower pressing sections is relatively large, and no magnetic attraction occurs between them. When the upper pressing section is driven down by the pressing driver and cooperates with the lower pressing section to clamp the fabric, the distance between the electromagnet and the magnetic holder is smaller, and a stronger magnetic attraction is generated, allowing the electromagnet and the magnetic holder to clamp the fabric. The de-energized electromagnet is demagnetized when energized and re-magnetized when de-energized, avoiding the long-term energization of conventional energized electromagnets, which affects the electromagnet's lifespan, and also preventing sudden release of the magnetic holder due to a power outage.

[0044] It is understandable that a conventional energized electromagnet can also be used, and the electromagnet can be installed on the lower part of the pressing cloth, while the magnetic base is installed on the upper part of the pressing cloth.

[0045] In some embodiments, the fabric pressing driver is a fabric pressing cylinder 15 that drives the upper fabric pressing baffle to rise and fall. The fabric pressing cylinder 15 is located above the upper fabric pressing baffle, and its cylinder rod is connected to the upper fabric pressing baffle 12. Furthermore, one fabric pressing cylinder 15 is connected to each end of the upper fabric pressing baffle 12 to ensure relatively balanced pressing force on both sides. A cylinder connecting plate 124 is fixed on the upper fabric pressing baffle and connected to the cylinder rod of the fabric pressing cylinder. At least two electromagnets 13 are installed in the middle section of the upper fabric pressing baffle, and at least two magnetic seats 14 are corresponding to the electromagnets and installed in the middle section of the lower fabric pressing baffle. This achieves a staggered arrangement of the electromagnets and magnetic seats with the fabric pressing driver along the length of the fabric pressing baffle assembly. Moreover, because multiple spaced electromagnets and magnetic seats cooperate to clamp the fabric in the middle section of the fabric pressing baffle assembly, a relatively balanced pressing force in the middle section can be ensured.

[0046] Specifically, the pressing cylinder 15 is mounted on the pressing cylinder mounting base 16, which is connected to the lower pressing block 11 and the cylinder rod of the pulling cylinder 17. The pulling cylinder 17 pulls the lower and upper pressing blocks horizontally. Pulling the lower and upper pressing blocks horizontally can move them to or away from the pressing station. Moving them away from the pressing station facilitates automatic fabric feeding and receiving. The pressing cylinder mounting base 16 has a top mounting plate 161, a bottom mounting plate 162, and a vertical mounting plate 163 connecting the top and bottom mounting plates 161 and 162. The pressing cylinder is mounted below the top mounting plate, the bottom mounting plate is fixed to the lower pressing block, and the vertical mounting part is connected to the cylinder rod of the pulling cylinder 17, so that the lower and upper pressing blocks can be pulled horizontally by the pulling cylinder 17. The fabric-pulling cylinder 17 is installed on the fabric-pulling cylinder mounting base 18, which is L-shaped. One side plate is connected to the fabric-pulling cylinder, and the other side is connected to the fabric-pulling cylinder fixing clamp 181 and the pulling plate guide plate 182. The fabric-pulling cylinder fixing clamp 181 is used to fix the fabric-pulling cylinder 17, and the pulling plate guide plate 182 is used to guide and cooperate with the bottom mounting plate 162.

[0047] The above description is merely a specific embodiment of the utility model, but the scope of protection of the utility model is not limited thereto. Those skilled in the art should understand that the utility model includes, but is not limited to, the content described in the accompanying drawings and the specific embodiments above. Any modifications that do not depart from the functional and structural principles of the utility model will be included within the scope of the claims.

Claims

1. A fabric pressing block assembly, comprising a lower fabric pressing block and an upper fabric pressing block disposed above the lower fabric pressing block, wherein the upper fabric pressing block is driven downward by a fabric pressing driver and cooperates with the lower fabric pressing block to clamp the fabric, characterized in that, It also includes an electromagnet installed on one of the lower and upper pressure sections of the fabric press and a magnetic holder installed on the other of the lower and upper pressure sections of the fabric press, wherein the electromagnet and the magnetic holder cooperate to clamp the fabric.

2. The fabric pressing baffle assembly according to claim 1, characterized in that, The electromagnet is installed on the upper part of the pressing cloth, and the magnetic base is installed on the lower part of the pressing cloth.

3. The fabric pressing baffle assembly according to claim 2, characterized in that, The upper part of the pressure cloth is provided with an upper through hole, the electromagnet is provided with an electromagnet mounting plate, the electromagnet body passes through the upper through hole, and the electromagnet mounting plate is installed at the upper end of the upper through hole.

4. The fabric pressing baffle assembly according to claim 2, characterized in that, The lower pressure plate is provided with a lower through hole, and the magnetic seat is provided with a base plate and a boss, wherein the boss moves through the lower through hole and the base plate is located below the lower through hole.

5. A fabric pressing baffle assembly according to claim 2, characterized in that, At least two electromagnets are installed in the middle section of the upper pressing block, and at least two magnetic chucks are correspondingly installed in the middle section of the lower pressing block; and / or, the combination of electromagnets and magnetic chucks is offset from the pressing block driver in the length direction of the pressing block assembly.

6. The fabric pressing baffle assembly according to claim 1, characterized in that, The electromagnet is a de-energized electromagnet.

7. A fabric pressing baffle assembly according to claim 1, characterized in that, The fabric pressing driver is a fabric pressing cylinder, which is located above the upper fabric pressing section, and the cylinder top rod is connected to the upper fabric pressing section.

8. A fabric pressing baffle assembly according to claim 7, characterized in that, Each end of the upper section of the fabric pressing device is connected to a fabric pressing cylinder.

9. A fabric pressing baffle assembly according to claim 7, characterized in that, The pressing cylinder is installed on the pressing cylinder mounting base. The pressing cylinder mounting base is connected to the lower pressing block and to the cylinder top rod of the pulling cylinder. The pulling cylinder pulls the lower pressing block and the upper pressing block to move horizontally.

10. An embroidery frame for an embroidery machine, characterized in that, Includes the fabric pressing assembly as described in any one of claims 1 to 9.

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