Oil quantity adjusting structure of sewing machine

Abstract

Provided is an oil quantity adjusting structure of a sewing machine. The problem that an oil quantity adjusting structure of a conventional sewing machine is difficult to accurately control oil outlet quantity is mainly solved. The oil pump is characterized by further comprising a mounting pipe (3) connected with the shell, an oil outlet channel (31) communicated with the oil cavity is formed in the mounting pipe, and a second oil outlet (32) is formed in the mounting pipe; and the adjusting piece (33) is connected with the mounting pipe, and part of the adjusting piece is arranged in the oil outlet channel and used for adjusting the amount of oil flowing out of the second oil outlet. According to the oil quantity adjusting structure of the sewing machine, the installation pipe is additionally arranged, the adjusting range of the adjusting screw can be increased, and therefore the oil quantity of the oil outlet can be more accurately controlled.

Description

Technical Field

[0001] This utility model relates to the field of sewing machines, specifically to an oil level adjustment structure for a sewing machine. Background Technology

[0002] Industrial sewing machine oil volume adjustment components require the use of an oil volume adjustment mechanism. Existing oil volume adjustment mechanisms connect the oil pump oil pressure adjustment component by thread, and generally the adjusting screw is directly installed on the oil sleeve. This results in a very short adjustment distance for the adjusting screw, making it difficult to control the amount of oil output and making adjustment difficult. Utility Model Content

[0003] In order to overcome the shortcomings of the prior art, this utility model provides an oil volume adjustment structure for a sewing machine, which mainly solves the problem that conventional oil volume adjustment structures for sewing machines are difficult to accurately control the oil output.

[0004] The technical solution of this utility model is as follows:

[0005] An oil level adjustment structure for a sewing machine includes a housing and a lower shaft. The housing has an oil chamber and an oil inlet communicating with the oil chamber. The lower shaft has a first oil outlet communicating with the oil inlet. The structure also includes...

[0006] An installation tube is connected to the housing. The installation tube has an oil outlet channel communicating with the oil cavity and a second oil outlet on it.

[0007] An adjusting component is connected to the mounting pipe, and part of the adjusting component is located in the oil outlet channel to adjust the amount of oil flowing out from the second oil outlet.

[0008] The mounting tube is detachably connected to the housing.

[0009] The regulating member located in the oil outlet channel has a conical or frustum-shaped flow-reducing section and a cylindrical regulating section, with the flow-reducing section located on the front side of the regulating section.

[0010] The flow reduction section and the adjustment section are arranged coaxially.

[0011] The mounting tube is provided with a threaded seat, and the adjusting component includes a first mounting groove that is threadedly connected to the threaded seat.

[0012] The lower shaft is equipped with an oil limiting core, which is located in front of the first oil outlet.

[0013] The mounting tube is arranged perpendicularly to the housing.

[0014] The housing is provided with a second mounting groove for mounting the lower shaft.

[0015] The beneficial effects of this utility model are: This utility model provides an oil volume adjustment structure for a sewing machine. By adding an installation tube, the adjustment range of the adjusting screw can be increased, thereby achieving more precise control over the amount of oil at the oil outlet. Attached Figure Description

[0016] Figure 1 This is a cross-sectional schematic diagram of one embodiment of the present invention.

[0017] Figure 2 This is a perspective view of an embodiment of the present invention installed on a sewing machine. Detailed Implementation

[0018] The present invention will be further described below with reference to the accompanying drawings. A sewing machine oil volume adjustment structure includes a housing 1 and a lower shaft 2. The housing has an oil chamber 11 and an oil inlet 12 communicating with the oil chamber. The lower shaft has a first oil outlet 21 communicating with the oil inlet. The structure also includes an installation tube 3 connected to the housing, with an oil outlet channel 31 communicating with the oil chamber and a second oil outlet 32. An adjusting component 33 is connected to the installation tube, and part of the adjusting component is located within the oil outlet channel to adjust the amount of oil flowing from the second oil outlet. The oil volume from the oil outlet channel can conversely control the oil volume from the first oil outlet; that is, if the oil volume from the oil outlet channel is reduced, the oil pressure at the first oil outlet is increased, and the oil volume also increases.

[0019] In this embodiment, as shown in the figure, the mounting tube is detachably connected to the housing. The connection can be achieved through methods such as threaded connections; specifically, a connector can be provided on the mounting tube to enable quick connection.

[0020] In this embodiment, as shown in the figure, the adjusting member disposed within the oil outlet channel has a conical or frustum-shaped flow-reducing section 331 and a cylindrical adjusting section 332, with the flow-reducing section located at the front of the adjusting section. For details, please refer to Chinese Patent Publication No. CN202320933387.0.

[0021] In this embodiment, as shown in the figure, the flow reduction section and the adjustment section are coaxially arranged.

[0022] In this embodiment, as shown in the figure, the mounting tube is provided with a threaded seat 34, and the adjusting component includes a first mounting groove 333 that is threadedly connected to the threaded seat. Adjustment is achieved by rotating the thread, resulting in a simple structure that is practical and convenient.

[0023] In this embodiment, as shown in the figure, an oil limiting core 22 is provided inside the lower shaft, and the oil limiting core is located in front of the first oil outlet. The oil limiting core is made of a high-density material (such as copper-based powder metallurgy material, which is the prior art), and the oil passage located in front of the first oil outlet needs to be subjected to a large oil pressure to form a passage.

[0024] In this embodiment, as shown in the figure, the mounting tube is arranged perpendicularly to the housing.

[0025] In this embodiment, as shown in the figure, the housing is provided with a second mounting groove 13 for mounting the lower shaft.

[0026] In the description of this utility model, it should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0027] Furthermore, the terms "first" and "second" 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. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0028] The embodiments described with reference to the accompanying drawings are exemplary and intended to explain the present invention, and should not be construed as limiting the present invention. The embodiments should not be considered as limitations on the present invention, but any improvements made based on the spirit of the present invention should be within the protection scope of the present invention.

Claims

1. An oil volume adjustment structure for a sewing machine, comprising a housing (1) and a lower shaft (2), wherein the housing has an oil chamber (11), the housing has an oil inlet (12) communicating with the oil chamber, and the lower shaft has a first oil outlet (21) communicating with the oil inlet, characterized in that: Also includes The mounting tube (3) is connected to the housing. The mounting tube is provided with an oil outlet channel (31) that communicates with the oil cavity. The mounting tube is provided with a second oil outlet (32). An adjusting component (33) is connected to the mounting pipe, and part of the adjusting component is located in the oil outlet channel to adjust the amount of oil flowing out from the second oil outlet.

2. The oil level adjustment structure for a sewing machine according to claim 1, characterized in that: The mounting tube is detachably connected to the housing.

3. The oil level adjustment structure for a sewing machine according to claim 1, characterized in that: The regulating member located in the oil outlet channel has a conical or frustum-shaped flow-reducing section (331) and a cylindrical regulating section (332), with the flow-reducing section located on the front side of the regulating section.

4. The oil level adjustment structure for a sewing machine according to claim 3, characterized in that: The flow reduction section and the adjustment section are arranged coaxially.

5. The oil level adjustment structure for a sewing machine according to claim 1, characterized in that: The mounting tube is provided with a threaded seat (34), and the adjusting component includes a first mounting groove (333) that is threadedly connected to the threaded seat.

6. The oil level adjustment structure for a sewing machine according to claim 1, characterized in that: The lower shaft is provided with an oil limiting core (22), which is located in front of the first oil outlet.

7. The oil level adjustment structure for a sewing machine according to any one of claims 1-6, characterized in that: The mounting tube is arranged perpendicularly to the housing.

8. The oil level adjustment structure for a sewing machine according to claim 1, characterized in that: The housing is provided with a second mounting groove (13) for mounting the lower shaft.

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