Sewing machine pinhole plate allowing temperature adjusting medium to flow in and pinhole plate structure of sewing machine pinhole plate

Abstract

The sewing machine pinhole plate allowing the temperature adjusting medium to flow in and the pinhole plate structure of the sewing machine pinhole plate comprise the following two aspects that firstly, the sewing machine pinhole plate allowing the temperature adjusting medium to flow in comprises a plate body and a pinhole which is formed in the middle of the plate body and allows a machine needle to be inserted, and a protruding structure is arranged at the bottom of the plate body in a protruding mode; the needle hole penetrates through the protruding structure, a first medium inflow through hole is formed in one end of the protruding structure, a second medium inflow through hole is formed in the other end of the protruding structure, and annular grooves communicated with the first medium inflow through hole and the second medium inflow through hole are formed in the side wall of the needle hole. The pinhole plate structure comprises medium manufacturing equipment, a control valve connected with the medium manufacturing equipment, a medium pipe connected with the control valve and the sewing machine pinhole plate which is connected with the medium pipe and can allow the temperature adjusting medium to flow in.

Description

Technical Field

[0001] The utility model relates to the technical field of sewing machine pinhole plates, in particular to a sewing machine pinhole plate into which a temperature regulating medium can flow and a pinhole plate structure thereof. Background Art

[0002] The needle hole plate of a sewing machine is a part used to support the sewing material and guide the needle through. It is generally installed on the small needle plate of the sewing machine, and then the small needle plate is installed on the large needle plate. The large needle plate is used to place the entire sewing material. The large needle plate is installed on the top of the sewing machine body. The top of the large needle plate corresponds to the machine needle installed on the machine arm, and the bottom of the large needle plate corresponds to the bobbin compartment.

[0003] At present, during the sewing process of the sewing machine, the needle pierces the sewing material up and down and brings the thread to the bottom of the sewing material for the bobbin to hook the thread and thread, so as to form upper and lower stitches, thereby sewing the sewing material.

[0004] However, during this process, the sewing effect of the sewing material is affected by the temperature of the contact between the machine needle and the sewing material.

[0005] At present, there are similar technologies for regulating the temperature of machine needles and sewing materials, such as patent document number: CN211620830U, patent name: A Chinese utility model patent for a needle cooling device in a sewing machine. The core technical idea of ​​the patent content is to provide an additional cooling device, and blow air to cool the machine needle through the pipe of the additional cooling device. Through technical extension, it is possible to connect a medium source with different temperatures, and then blow the medium into the machine needle through the pipe, and the temperature of the needle can be adjusted through the contact between the medium and the needle.

[0006] However, the disadvantages of using the above technology to adjust the needle temperature are:

[0007] 1. When the medium is blown into the needle through the additional medium adjustment device, the force of the medium blowing is in a single direction, which can easily cause the thread on the needle to become disordered;

[0008] 2. The air blowing device can easily block the view of the sewing machine during sewing, which will affect the sewing workers' ability to sew materials. Utility Model Content

[0009] The purpose of the present utility model is to overcome the above-mentioned defects in the prior art and to provide a sewing machine needle hole plate and its needle hole plate structure into which a temperature regulating medium can flow, wherein the annular groove includes a temperature regulating medium for providing a uniform temperature regulating medium to regulate the temperature of the machine needle, thereby preventing the thread on the machine needle from being blown away and disordered; at the same time, the sewing machine needle hole plate will not occupy the space of the sewing machine and will not affect the sewing field of view of the sewing machine.

[0010] To achieve the above objectives, the present invention is implemented through the following two aspects:

[0011] In the first aspect, a sewing machine needle hole plate for allowing a temperature-regulating medium to flow in comprises a plate body and a needle hole provided in the middle of the plate body for inserting a machine needle, a protruding structure being provided on the bottom of the plate body, the needle hole passing through the protruding structure, a first medium inflow through hole being provided at one end of the protruding structure, a second medium inflow through hole being provided at the other end, and an annular groove being provided on the side wall of the needle hole, which is respectively connected to the first medium inflow through hole and the second medium inflow through hole.

[0012] Preferably, the plate body is annular.

[0013] Preferably, a circular step is provided between the plate body and the raised structure.

[0014] Preferably, a transition fillet is provided between the top of the plate body and the top of the pinhole.

[0015] Preferably, mounting holes for mounting on a small needle plate are provided on both sides of the plate body, and a first transition chamfer is provided on the top of the mounting hole.

[0016] Preferably, the top edge and the bottom edge of the plate body are respectively provided with a second transition chamfer.

[0017] Preferably, one end of the protruding structure has a blocking portion.

[0018] Preferably, the other end of the protruding structure is provided with an inclined cutout.

[0019] Preferably, the plate is made of metal or plastic.

[0020] In the second aspect, a pinhole plate structure includes a medium manufacturing device, a control valve connected to the medium manufacturing device, a medium pipe connected to the control valve, and a sewing machine pinhole plate connected to the medium pipe and capable of allowing a temperature-regulating medium to flow in as described in the first aspect.

[0021] Compared with the prior art, the beneficial effects of the present invention are:

[0022] 1. The utility model provides a sewing machine needle hole plate for allowing a temperature regulating medium to flow in.

[0023] First, the temperature regulating medium is introduced into the first medium inlet through hole and the second medium inlet through hole respectively, and then the temperature regulating medium flows out evenly from the annular groove, thereby regulating the temperature on the needle and preventing the thread on the needle from being blown away and disordered;

[0024] Second, the first medium inflow through hole, the second medium inflow through hole, and the annular groove are all provided on the plate body, which will not occupy the space of the sewing machine, and the arrangement is secretive and will not affect the sewing vision of the sewing machine.

[0025] 2. The utility model provides a pinhole plate structure, whose control valve can adjust the size according to the user's needs, and adjust the amount of medium flowing into the first medium inflow through hole and the second medium inflow through hole of the medium manufacturing equipment in real time, thereby quickly and stably adjusting the temperature of the machine needle and the bottom of the sewing material. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0027] Figure 1 This is a structural schematic diagram of a sewing machine needle hole plate for allowing a temperature regulating medium to flow in, provided in Example 1 of the present utility model, from one perspective;

[0028] Figure 2 This is a structural schematic diagram of another perspective of a sewing machine needle hole plate for allowing a temperature regulating medium to flow in, provided in Example 1 of the present utility model;

[0029] Figure 3 This is a front cross-sectional schematic diagram of a sewing machine needle hole plate for allowing a temperature regulating medium to flow in, provided in Example 1 of the present utility model;

[0030] Figure 4 This is a schematic oblique side cross-sectional view of a sewing machine needle hole plate into which a temperature regulating medium can flow, provided in Example 1 of the present utility model.

[0031] Included in the diagram are:

[0032] 1. Plate body; 15. Transition fillet; 16. First transition chamfer; 17. Second transition chamfer; 2. Protrusion structure; 21. First medium inflow through hole; 22. Second medium inflow through hole; 23. Annular groove; 25. Stop portion; 26. Inclined incision; 3. Circular step; 4. Pinhole; 5. Mounting hole. DETAILED DESCRIPTION

[0033] The following will be combined with the drawings in this embodiment of the present invention to clearly and completely describe the technical solution in this embodiment of the present invention. Obviously, the embodiment described is only one embodiment of the present invention, not all embodiments of the present invention. Based on this embodiment of the present invention, all other embodiments of the present invention obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of this utility model.

[0034] Example 1:

[0035] See also Figures 1 to 4 An embodiment of the utility model provides a sewing machine needle hole plate for allowing a temperature regulating medium to flow in, comprising a plate body 1 and a needle hole 4 provided in the middle of the plate body 1 for inserting a needle, a protruding structure 2 is provided on the bottom of the plate body 1, and the needle hole 4 passes through the protruding structure 2, a first medium inflow through hole 21 is provided at one end of the protruding structure 2, and a second medium inflow through hole 22 is provided at the other end, and an annular groove 23 is provided on the side wall of the needle hole 4, which is respectively connected to the first medium inflow through hole 21 and the second medium inflow through hole 22.

[0036] The plate body 1 is annular.

[0037] A circular step 3 is provided between the plate body 1 and the raised structure 2. The circular step 3 is convenient for being embedded in the small needle plate, so that the plate body 1 and the small needle plate of the prior art are on the same horizontal plane.

[0038] A transition fillet 15 is provided between the top of the plate body 1 and the top of the needle hole 4. The transition fillet 15 facilitates guiding the thread on the needle hole 4 to pass through the plate body 1.

[0039] The plate body 1 has mounting holes 5 for mounting on the small needle plate on both sides, and the top of the mounting hole 5 is provided with a first transition chamfer 16. The first transition chamfer 16 is convenient for locking the screws so that the screws do not exceed the plane of the small needle plate.

[0040] The top edge and the bottom edge of the plate body 1 are respectively provided with a second transition chamfer 17. The second transition chamfer 17 facilitates the plate body 1 to be embedded in the small needle plate to prevent the plate body 1 from tilting.

[0041] The purpose of the protruding structure 2 is to make it flush with the thread trimming mechanism at the bottom of the needle plate, so as to facilitate thread trimming by the thread trimming mechanism.

[0042] One end of the raised structure 2 has a stopper 25. The stopper 25 is used to block the thread trimming mechanism, while reducing space and facilitating the movement of the thread trimming mechanism.

[0043] The other end of the raised structure 2 is provided with an inclined cutout 26. The inclined cutout 26 is used to reduce space and facilitate the layout of the bobbin.

[0044] The working principle and technical advantages of a sewing machine needle hole plate for allowing a temperature regulating medium to flow into an embodiment of the present utility model are described in the following embodiment 2.

[0045] The manufacturing method of the sewing machine needle hole plate for allowing the flow of a temperature-regulating medium in the embodiment of the present invention can be injection molding or machining. When machining is adopted, the first medium inlet through hole 21 and the second medium inlet through hole 22 are first drilled through, and then an annular groove is machined using an internal milling cutter.

[0046] Example 2:

[0047] An embodiment of the present utility model provides a pinhole plate structure, including a medium manufacturing device, a control valve connected to the medium manufacturing device, a medium pipe connected to the control valve, and a sewing machine pinhole plate connected to the medium pipe and capable of allowing a temperature-regulating medium to flow in, as described in Example 1.

[0048] A pinhole plate structure according to an embodiment of the present invention has the following working principle: a medium manufacturing device generates a temperature control medium (a temperature control medium such as cooling air, cooling oil or liquid nitrogen, etc. The function of the cooling gas or cooling liquid is to cool the machine needle to avoid the high temperature of the needle friction causing a decrease in the sewing effect of the sewing material. The temperature control medium can also be a high-temperature gas or liquid, which is suitable for sewing materials at low temperatures that cause a decrease in sewing effect due to cold brittleness); then, the control valve adjusts the size of the medium; then, the medium pipe pair introduces the temperature control medium into the first medium flow through hole 21 and the second medium flow through hole 22 respectively, and then, the first medium flow through hole 21 and the second medium flow through hole 22 introduce the temperature control medium into the annular groove, so that the annular groove forms a uniform medium circulation. When the machine needle is inserted into the pinhole 4 plate, the machine needle contacts the uniform medium circulation on the pinhole 4, and the machine needle can be quickly temperature-controlled, and the temperature control is stable.

[0049] The advantages of a needle hole plate structure in an embodiment of the present invention are: first, when the temperature of the machine needle is adjusted, it can effectively prevent the thread on the needle from being blown away and disordered; second, it will not take up the space of the sewing machine and will not affect the sewing field of view of the sewing machine.

[0050] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A sewing machine needle hole plate for allowing a temperature regulating medium to flow in, comprising a plate body (1) and a needle hole (4) provided in the middle of the plate body (1) for inserting a machine needle, characterized in that: A protruding structure (2) is provided at the bottom of the plate body (1); the pinhole (4) passes through the protruding structure (2); a first medium inflow through hole (21) is provided at one end of the protruding structure (2); a second medium inflow through hole (22) is provided at the other end; and an annular groove (23) is provided on the side wall of the pinhole (4), which is respectively connected to the first medium inflow through hole (21) and the second medium inflow through hole (22).

2. A sewing machine needle hole plate for allowing a temperature regulating medium to flow into according to claim 1, characterized in that: The plate body (1) is in a circular ring shape.

3. A sewing machine needle hole plate for allowing a temperature regulating medium to flow into according to claim 1, characterized in that: A circular step (3) is provided between the plate body (1) and the raised structure (2).

4. A sewing machine needle hole plate capable of allowing a temperature regulating medium to flow into according to claim 1, characterized in that: A transition fillet (15) is provided between the top of the plate body (1) and the top of the needle hole (4).

5. The sewing machine needle hole plate capable of allowing a temperature regulating medium to flow into according to claim 1, characterized in that: Mounting holes (5) for mounting on a small needle plate are provided on both sides of the plate body (1), and a first transition chamfer (16) is provided on the top of the mounting hole (5).

6. The sewing machine needle hole plate capable of allowing a temperature regulating medium to flow into according to claim 1, characterized in that: The top edge and the bottom edge of the plate body (1) are respectively provided with a second transition chamfer (17).

7. The sewing machine needle hole plate capable of allowing a temperature regulating medium to flow into according to claim 1, characterized in that: One end of the protruding structure (2) is provided with a stop portion (25).

8. The sewing machine needle hole plate capable of allowing a temperature regulating medium to flow into according to claim 1, characterized in that: The other end of the protruding structure (2) is provided with an inclined cutout (26).

9. The sewing machine needle hole plate capable of allowing a temperature regulating medium to flow into according to claim 1, characterized in that: The plate body (1) is made of metal material or plastic material.

10. A pinhole plate structure, characterized in that: The invention comprises a medium manufacturing device, a control valve connected to the medium manufacturing device, a medium pipe connected to the control valve, and a sewing machine needle hole plate connected to the medium pipe and capable of allowing a temperature regulating medium to flow in according to any one of claims 1 to 9.

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