Sewing machine

Abstract

The sewing machine comprises a machine head shell, an oil inlet mechanism and a needle rod mechanism, the oil inlet mechanism and the needle rod mechanism are connected with the machine head shell, and the oil inlet mechanism is used for lubricating and oiling the needle rod mechanism; the oil inlet mechanism comprises an oil inlet connector, an oil guide pipe, a fixing piece and an oil storage piece. The oil inlet connector communicates with the oil guide pipe. The fixing piece is connected with the needle rod mechanism and is used for fixing the oil storage piece on the needle rod mechanism; a mounting opening is formed in the fixing part and used for mounting an oil guide pipe, the oil guide pipe is used for guiding lubricating oil into the oil storage part, and the oil storage part is used for smearing the lubricating oil on the needle rod mechanism. The oil storage piece can temporarily store a part of lubricating oil and continuously lubricate the needle rod mechanism within a certain time, and the needle rod mechanism does not need to be filled with oil constantly and only needs to be filled with oil at a certain working time interval; the oil inlet mechanism is manually filled with oil, accurate oil filling is carried out according to the actual working time of the sewing machine, and resource waste is avoided.

Description

Technical Field

[0001] The present application relates to the technical field of sewing machines, and in particular to a sewing machine. Background Art

[0002] In existing sewing machine heads, the needle bar mechanism needs to be lubricated with lubricating oil to ensure smooth operation of the needle bar mechanism. Therefore, an automatic oiling mechanism is provided in the prior art to automatically add lubricating oil to the needle bar mechanism, thereby maintaining smooth operation of the needle bar mechanism and ensuring smooth operation and work efficiency.

[0003] Then this automatic oiling mechanism has a pre-set oiling program, and as long as the sewing machine is turned on, it will oil according to the oiling program; however, in actual production, the sewing machine is sometimes turned on, but it will not work all the time. Therefore, when the sewing machine is turned on but not running, the automatic oiling mechanism continues to add lubricating oil to the needle bar mechanism, which will cause lubricating oil to accumulate on the needle bar mechanism. Part of the lubricating oil will drip onto the fabric along the needle bar mechanism, and the other part of the lubricating oil will adhere to the needle bar mechanism. After being air-dried for a long time, it will affect the smooth operation of the needle bar mechanism.

[0004] Therefore, there is room for further improvement in the mechanism for adding lubricating oil to the needle bar mechanism of the sewing machine in the prior art. Utility Model Content

[0005] In view of this, in order to solve the technical problem that the automatic refueling mechanism in the above-mentioned prior art automatically refuels the needle bar mechanism, which will lead to oil waste and excessive oil adhesion, thus affecting the smooth operation of the needle bar mechanism, the present application provides a sewing machine, which is provided with an oil supply mechanism, and the oil supply mechanism adopts manual refueling and is provided with an oil storage part. The oil storage part can temporarily store a certain amount of lubricating oil to continuously lubricate the needle bar mechanism, and manual refueling makes it easy for the operator to accurately refuel the needle bar mechanism without causing waste of resources.

[0006] The present application provides a sewing machine, comprising a machine head housing, an oil feed mechanism and a needle bar mechanism, wherein the oil feed mechanism and the needle bar mechanism are connected to the machine head housing, and the oil feed mechanism is used to lubricate and add oil to the needle bar mechanism;

[0007] The oil inlet mechanism includes an oil inlet joint, an oil guide pipe, a fixing member and an oil storage member, and the oil inlet joint is connected to the oil guide pipe;

[0008] The fixing member is connected to the needle bar mechanism, and the fixing member is used to fix the oil storage member on the needle bar mechanism;

[0009] The fixing member is provided with a mounting opening, the mounting opening is used to install the oil guide pipe, the oil guide pipe is used to guide the lubricating oil to the oil storage member, and the oil storage member is used to apply the lubricating oil to the needle rod mechanism.

[0010] Compared with the prior art, the sewing machine of the present application is provided with an oil inlet mechanism and a needle bar mechanism, and the oil inlet mechanism is used to lubricate and refuel the needle bar mechanism; wherein the oil inlet mechanism includes a fixing part, an oil inlet joint, an oil guide pipe and an oil storage part, the fixing part fixes the oil storage part on the needle bar mechanism, the oil inlet joint is connected to the machine head housing, one end of the oil guide pipe is connected to the oil inlet joint, and the other end is connected to the fixing part, and the fixing part is provided with a mounting port for installing the oil guide pipe, so that the oil guide pipe can guide the lubricating oil to the fixing part and the oil storage part; and the oil storage part can temporarily store a part of the lubricating oil, and continuously apply the lubricating oil to the needle bar mechanism for a certain period of time, thereby ensuring that the needle bar mechanism has smooth working within a certain period of time, so there is no need to refuel the needle bar mechanism all the time, only refueling is required at intervals of a certain working time; and the oil inlet mechanism of the present application is manual refueling, which can accurately refuel according to the actual working time of the sewing machine, thereby avoiding waste of resources and avoiding excessive refueling causing the needle bar mechanism to become stuck.

[0011] Preferably, the needle bar mechanism comprises a needle bar and a shaft sleeve, the shaft sleeve is sleeved on the needle bar, and the fixing member is used to fix the oil storage member to the end of the shaft sleeve;

[0012] Wherein, the fixing member is provided with a mounting hole, and the shaft sleeve is provided with a fixing hole, and the fixing hole cooperates with the mounting hole to be connected to the same connecting member.

[0013] Preferably, the fixing member is provided with a clamping plate and a supporting plate, the supporting plate is connected to the end of the clamping plate, the supporting plate extends axially toward the oil storage member, and the mounting hole is provided on the supporting plate;

[0014] The clamping plate is provided with a mounting groove, and the mounting groove is sleeved on the needle rod; the mounting opening is arranged at the side end of the clamping plate close to the oil inlet joint.

[0015] Preferably, the shaft sleeve is divided into a first shaft sleeve and a second shaft sleeve, and the first shaft sleeve and the second shaft sleeve are sleeved on the needle rod at intervals;

[0016] The oil storage member is divided into a first oil storage member and a second oil storage member, wherein the first oil storage member and the second oil storage member are arranged between the first shaft sleeve and the second shaft sleeve;

[0017] The fixing member is divided into a first fixing member and a second fixing member. The first fixing member is used to fix the first oil storage member on the end of the first sleeve close to the second sleeve, and the second fixing member is used to fix the second oil storage member on the end of the second sleeve close to the first sleeve.

[0018] Preferably, a clamping block is provided on the first fixing member, and the clamping block is used to clamp the first sleeve;

[0019] Wherein, a clamping groove is provided on the clamping block, and the width of the clamping groove is less than or equal to the outer diameter of the first sleeve.

[0020] Preferably, a limit plate is provided on the first fixing member, the limit plate is connected to the end of the first fixing member close to the oil inlet joint, and the limit plate extends axially in a direction away from the second shaft sleeve;

[0021] Wherein, the mounting opening is arranged on the limiting plate.

[0022] Preferably, a limiting opening is provided on the limiting plate, the limiting opening is communicated with the mounting opening, and the limiting opening is opened at the end of the limiting plate away from the clamping plate;

[0023] Wherein, the width of the limiting opening is smaller than the width of the installation opening, and the width of the limiting opening is smaller than the outer diameter of the oil guide pipe.

[0024] Preferably, the oil storage member is provided with a lubrication port, the oil storage member is sleeved on the needle bar mechanism through the lubrication port, and the side wall of the lubrication port is in contact with the outer wall of the needle bar mechanism;

[0025] and / or,

[0026] The oil storage piece is made of wool felt material.

[0027] Preferably, the oil inlet joint comprises an oil inlet end and an oil outlet end, and the oil outlet end is communicated with the oil guide pipe;

[0028] The oil inlet end is provided with a refueling nozzle, which is in a normally closed state and opens under pressure to allow lubricating oil to flow into the oil guide pipe.

[0029] Preferably, the oil inlet joint is connected to the machine head housing, the oil inlet end of the oil inlet joint is exposed to the outside of the machine head housing, and the oil outlet end of the oil inlet joint is arranged inside the machine head housing.

[0030] A sewing machine of the present application has at least the following technical effects:

[0031] 1. By providing a fixing member and an oil storage member, the fixing member is used to fix the oil storage member on the needle bar mechanism and can fix the oil outlet end of the oil guide pipe, so that the oil guide pipe can guide the lubricating oil to the oil storage member; the oil storage member can temporarily store a certain amount of lubricating oil, and the lubricating oil is applied to the needle bar to lubricate the needle bar. Therefore, the oil supply mechanism does not need to refuel the needle bar mechanism in real time, and only needs to manually refuel according to the actual working time, which can effectively save resources;

[0032] 2. By setting oil storage parts at the ends of the first sleeve and the second sleeve respectively, the interface between the sleeve and the needle rod can be lubricated to avoid sticking;

[0033] 3. A support plate is provided on the fixing part, a mounting hole is provided on the support plate, and a fixing hole corresponding to the mounting hole is provided on the sleeve. The fixing hole and the mounting hole can be inserted with the same connecting part, thereby realizing the connection between the fixing part and the sleeve, ensuring the connection stability of the fixing part to the oil storage part and the oil guide pipe, thereby further ensuring the oil inlet stability of the oil inlet mechanism. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] Figure 1 This is a structural diagram of a sewing machine head provided in one embodiment of the present application;

[0035] Figure 2 This is a schematic diagram of the connection structure between the oil inlet mechanism and the needle rod mechanism provided in one embodiment of the present application;

[0036] Figure 3 is a structural diagram of a first fixing member provided in one embodiment of the present application;

[0037] Figure 4 is a structural diagram of a second fixing member provided in one embodiment of the present application;

[0038] Figure 5 yes Figure 1 A magnified schematic diagram of a local area A;

[0039] Figure 6 yes Figure 2 A schematic diagram of a partial B enlargement;

[0040] Figure 7 It is a schematic cross-sectional structural diagram of an oil inlet connector provided in one embodiment of the present application.

[0041] Reference numerals: 1, machine head housing; 2, oil inlet mechanism; 3, needle bar mechanism;

[0042] 11. First shaft sleeve; 12. Second shaft sleeve; 13. Needle bar;

[0043] 21. First oil inlet connector; 22. Second oil inlet connector; 23. First oil guide pipe; 24. Second oil guide pipe; 25. First fixing member; 26. Second fixing member; 27. First oil reservoir; 28. Second oil reservoir;

[0044] 211. Oil nozzle; 212. Elastic member; 213. Ball bearing;

[0045] 251, first clamping plate; 252, first support plate; 253, first mounting hole; 254, first mounting slot; 255, clamping block; 256, limiting plate; 257, first mounting opening; 258, limiting opening; 259, clamping slot;

[0046] 261. Second clamping plate; 262. Second supporting plate; 263. Second mounting hole; 264. Second mounting slot; 265. Second mounting port. DETAILED DESCRIPTION

[0047] In order to enable those skilled in the art to better understand the technical solutions of the present disclosure, the present disclosure is described in detail, clearly, and completely in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present disclosure and are not intended to limit the present disclosure.

[0048] In the description of this application, if there is a description of first or second, it is only for the purpose of distinguishing technical features, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.

[0049] Those skilled in the art should understand that, in the disclosure of this application, the terms "longitudinal", "transverse", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, which are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, the above terms cannot be understood as limiting this application.

[0050] The present application will be described in further detail below with reference to the accompanying drawings. Figures 1 to 7 illustrate.

[0051] The present application provides a sewing machine, which includes a head housing 1, an oil supply mechanism 2 and a needle bar mechanism 3. The needle bar mechanism 3 is arranged in the head housing 1, the oil supply end of the oil supply mechanism 2 is connected to the head housing 1, and the oil supply end of the oil supply mechanism 2 is connected to the needle bar mechanism 3. The oil supply mechanism 2 is used to guide lubricating oil to the needle bar mechanism 3 to lubricate the needle bar mechanism 3, avoid the needle bar mechanism 3 from getting stuck during work, and ensure the smooth operation of the needle bar mechanism 3.

[0052] Specifically, such as Figure 1 、 Figure 2 、 Figures 5 and 6 As shown, the oil inlet mechanism 2 includes an oil inlet joint, an oil guide pipe, a fixing part and an oil storage part. The oil inlet joint is fixed on the machine head housing 1. The oil inlet joint includes an oil inlet end and an oil outlet end. The oil inlet end of the oil inlet joint is exposed to the outside of the machine head housing 1; the oil outlet end of the oil inlet joint is arranged in the machine head housing 1 and is connected to the oil guide pipe.

[0053] like Figure 1 、 Figure 2 、 Figure 5 As shown, the needle bar mechanism 3 includes a needle bar 13 and a sleeve, the sleeve is sleeved on the needle bar 13, and the needle bar 13 can be axially displaced relative to the sleeve; the oil storage piece is sleeved on the needle bar 13, and the fixing piece is connected to the sleeve, and the fixing piece is used to fix the oil storage piece to the end of the sleeve; wherein, the fixing piece is provided with a mounting port at the side end near the oil inlet interface, and the mounting port is used to install the end of the oil guide pipe away from the oil inlet joint, and the oil outlet of the oil guide pipe is at least partially facing the oil storage piece, so that when the staff refuels from the oil inlet end of the oil inlet joint, the lubricating oil is guided to the oil storage piece by the oil guide pipe, and the oil storage piece can temporarily store a certain amount of lubricating oil. Since the oil storage piece is sleeved on the needle bar 13, the lubricating oil on the oil storage piece can be applied to the needle bar 13 when the needle bar 13 is axially displaced relative to the sleeve, so that when the needle bar 13 is displaced relative to the sleeve, it can ensure good smoothness and lubrication, ensure the operation stability of the needle bar mechanism 3, and then ensure the working efficiency of the sewing machine.

[0054] In this application, the oil inlet mechanism 2 is refueled by manual refueling, wherein, Figure 2 、 Figure 7 As shown, the oil inlet end is provided with a refueling nozzle 211, an oil inlet channel is provided in the refueling nozzle 211, an elastic member 212 is provided in the oil inlet channel, and a ball 213 is provided at the oil inlet end of the refueling nozzle 211. The elastic member 212 exerts a force on the ball 213. In the natural state, the elastic member 212 pushes the ball 213 to the oil inlet port to seal the oil inlet end, so that the refueling nozzle 211 is in a normally closed state; when refueling is needed, the refueling pipe is inserted into the refueling nozzle 211, and a force is exerted toward the oil outlet end on the ball 213. The ball 213 overcomes the elastic force of the elastic member 212 and moves toward the oil outlet end. The refueling nozzle 211 is opened to allow the lubricating oil to pass into the oil inlet joint, and then flows into the oil guide pipe, and finally flows into the oil storage member to lubricate the needle rod mechanism 3.

[0055] Therefore, the oil supply method of the oil supply mechanism 2 of the present application is combined with the oil supply mechanism 2, and adopts the method of manual refueling, so that the staff can accurately refuel according to the actual working time of the sewing machine, thereby avoiding waste of resources and avoiding excessive refueling that causes the needle bar mechanism 3 to get stuck; and the oil storage part can temporarily store a part of the lubricating oil, and continuously apply the lubricating oil to the needle bar mechanism 3 within a certain period of time, thereby ensuring that the needle bar mechanism 3 has smooth working within a certain period of time, so there is no need to refuel the needle bar mechanism 3 all the time, only refueling at intervals of a certain working time is required, which can effectively save resources.

[0056] It should be noted that, in the present application, the oil storage member is made of wool felt material, and the elastic member 212 is a spring.

[0057] Furthermore, a lubrication port is provided on the oil storage member, which penetrates the oil storage member axially. The oil storage member is sleeved on the needle rod 13 through the lubrication port, and the side wall of the lubrication port fits with the outer wall of the needle rod 13, so that when the needle rod 13 moves relative to the oil storage member, lubricating oil can be applied to the needle rod 13; in this embodiment, the inner diameter of the lubrication port is roughly the same as the outer diameter of the needle rod 13, so as to ensure the contact area between the oil storage member and the needle rod 13, and then ensure the lubrication application area of ​​the needle rod 13.

[0058] Among them, such as Figures 1 to 6 As shown, the fixing member includes a clamping plate and a support plate, the support plate is connected to the end of the clamping plate, and the support plate extends axially toward the oil storage member, so that the fixing member is an L-shaped structure as a whole, and a mounting groove is provided on the clamping plate, as shown in FIG. Figure 3 、 Figure 4 As shown, the mounting groove is C-shaped, the width of the mounting groove is greater than the outer diameter of the needle rod 13, and the splint is sleeved on the needle rod 13 through the mounting groove; the end face of the splint fits with the oil storage part to limit the axial position of the oil storage part.

[0059] like Figure 3 、 Figure 4 As shown, the mounting hole is provided on the support plate, and the mounting hole radially penetrates the support plate. Correspondingly, a fixing hole that cooperates with the mounting hole is provided on the sleeve, and the fixing hole and the mounting hole are coaxially arranged. The aperture of the mounting hole is greater than or equal to the aperture of the fixing hole, and the fixing hole and the mounting hole cooperate for the insertion of the same connecting part, thereby realizing the connection between the fixing part and the sleeve; wherein, the oil storage part is located between the sleeve and the splint, and the support plate is connected to the sleeve, so that the fixing part fixes the oil storage part and the sleeve, thereby ensuring the stability of the oil storage part when the needle rod 13 is displaced relative to the oil storage part.

[0060] like Figure 3 、 Figure 4 As shown, the mounting port is arranged at the side end of the splint near the oil inlet joint, and the mounting port is open in the direction of the splint toward the oil inlet joint. The mounting port is used to clamp the oil guide pipe so that the oil guide pipe can more stably guide the lubricating oil to the oil storage component.

[0061] Further, such as Figure 5 、 Figure 6 As shown, the shaft sleeve is divided into a first shaft sleeve 11 and a second shaft sleeve 12, and the first shaft sleeve 11 and the second shaft sleeve 12 are axially spaced at opposite ends of the needle rod 13, and the first shaft sleeve 11 is located at the upper end of the second shaft sleeve 12; correspondingly, the oil storage member is divided into a first oil storage member 27 and a second oil storage member 28, and the first oil storage member 27 and the second oil storage member 28 are arranged between the first shaft sleeve 11 and the second shaft sleeve 12; the fixing member is divided into a first fixing member 25 and a second fixing member 26, and the first fixing member 25 is used to fix the first oil storage member 27 at the end of the first shaft sleeve 11 close to the second shaft sleeve 12, that is, the first oil storage member 27 is located at the lower end of the first shaft sleeve 11, and the first fixing member 26 ... lower end of the first shaft sleeve 11. The fixed part 25 is located at the lower end of the first oil storage part 27, that is, the upper end surface of the first fixed part 25 is in contact with the lower end surface of the oil storage part, and the first fixed part 25 limits the first oil storage part 27 to prevent the first shaft sleeve 11 from moving downward; correspondingly, the second fixed part 26 is used to fix the second oil storage part 28 at the end of the second shaft sleeve 12 close to the first shaft sleeve 11, that is, the second oil storage part 28 is located at the upper end of the second shaft sleeve 12, and the second fixed part 26 is located at the upper end of the second oil storage part 28, that is, the lower end surface of the second fixed part 26 is in contact with the upper end surface of the oil storage part, and the second fixed part 26 limits the second oil storage part 28 to prevent the second shaft sleeve 12 from moving upward.

[0062] In this embodiment, two bushings are provided, and oil storage parts are provided at the ends of both bushings, so that lubrication can be achieved at the intersection of each bushing and the needle bar 13, thereby increasing the lubrication area of ​​the needle bar 13, ensuring the smoothness of the operation of the needle bar 13, and avoiding the needle bar mechanism 3 from getting stuck.

[0063] Correspondingly, such as Figure 3 As shown, the first fixing member 25 is provided with a first clamping plate 251 , a first supporting plate 252 , a first mounting hole 253 , a first mounting groove 254 and a first mounting opening 257 ; the first shaft sleeve 11 is provided with a first fixing hole.

[0064] Correspondingly, such as Figure 4 As shown, the second fixing member 26 is provided with a second clamping plate 261 , a second supporting plate 262 , a second mounting hole 263 , a second mounting groove 264 and a second mounting opening 265 ; the second shaft sleeve 12 is provided with a second fixing hole.

[0065] Correspondingly, such as Figure 5 、 Figure 6As shown, the oil guide pipe is divided into a first oil guide pipe 23 and a second oil guide pipe 24, and the oil inlet joint is divided into a first oil inlet joint 21 and a second oil inlet joint 22. The first oil inlet joint 21 and the second oil inlet joint 22 have the same structure, and the first oil inlet joint 21 and the second oil inlet joint 22 are distributed up and down. The first oil inlet joint 21 is connected to the first oil guide pipe 23, and the second oil inlet joint 22 is connected to the second oil guide pipe 24; the end of the first oil guide pipe 23 away from the first oil inlet joint 21 is installed in the first installation port 257 to transport lubricating oil to the first oil storage part 27; the end of the second oil guide pipe 24 away from the second oil inlet joint 22 is installed in the second installation port 265 to transport lubricating oil to the second oil storage part 28.

[0066] Furthermore, the first fixing member 25 is further expanded; Figure 3 As shown, a clamping block 255 is provided on the first fixing member 25, and the clamping block 255 is arranged at the end of the support plate away from the clamping plate. The clamping block 255 extends radially toward the direction of the sleeve, and the clamping block 255 is parallel to the clamping plate; a clamping groove 259 is provided on the clamping block 255, and the first sleeve 11 is located in the clamping groove 259. The clamping block 255 is connected to the first sleeve 11 through the clamping groove 259, and the clamping block 255 is used to clamp the first sleeve 11; the width of the clamping groove 259 is less than or equal to the outer diameter of the first sleeve 11, so that the connection between the first fixing member 25 and the first sleeve 11 is relatively tight.

[0067] Further, such as Figure 3 、 Figure 6 As shown, a limit plate 256 is provided on the first fixing member 25, and the limit plate 256 is connected to the end of the first fixing member 25 close to the oil inlet joint. The limit plate 256 extends axially in a direction away from the second sleeve 12, and the limit plate 256 is vertically connected to the first clamping plate 251; wherein, the first mounting port 257 is provided on the limit plate 256.

[0068] like Figure 3 As shown, a limiting opening 258 is provided on the limiting plate 256, and the limiting opening 258 is communicated with the first mounting opening 257. The limiting opening 258 opens at the end of the limiting plate 256 away from the first clamping plate 251, that is, the limiting opening 258 is located at the upper end of the first mounting opening 257, wherein the width of the limiting opening 258 is smaller than the width of the first mounting opening 257, and the width of the limiting opening 258 is smaller than the outer diameter of the oil guide pipe. When the first oil guide pipe 23 is inserted into the first mounting opening 257, the limiting opening 258 plays an axial limiting role on the first oil guide pipe 23, so that the first oil guide pipe 23 can be stably connected to the first fixing member 25.

[0069] Among them, such as Figure 5As shown, the two end tubes of the first oil guide pipe 23 and the second oil guide pipe 24 extend toward the oil inlet joint and the fixing part respectively, and the middle part is a straight pipe, so that the oil guide pipe is Z-shaped; the oil inlet joint is located at the upper end of the side of the fixing part; the axial length of the first oil guide pipe 23 is smaller than the axial length of the second oil guide pipe 24, and the corner of the oil outlet end of the second oil guide pipe 24 abuts against the head housing 1, and the oil outlet end is directly installed at the second mounting port 265, so that the second oil guide pipe 24 can be stably connected to the second fixing part 26.

[0070] It should be noted that, in another optional embodiment of the present application, the oil inlet connector 21 is a rubber plug; in addition, the oil inlet connector 21 can also be other devices with the same switching effect.

[0071] It should be noted that the various embodiments of the present application can be arbitrarily combined into new embodiments if the solutions do not conflict and the technical solutions can coexist.

[0072] The present application has been described in detail above. Specific examples have been used herein to illustrate the principles and implementation methods of the present application. The description of the above embodiments is intended only to facilitate understanding of the present application and its core concepts. It should be noted that, without departing from the principles of the present application, a number of improvements and modifications may be made to the present application by a person skilled in the art, and such improvements and modifications shall fall within the scope of protection of the claims of the present application.

Claims

1. A sewing machine, characterized in that: It comprises a machine head housing (1), an oil inlet mechanism (2) and a needle rod mechanism (3), wherein the oil inlet mechanism (2) and the needle rod mechanism (3) are connected to the machine head housing (1), and the oil inlet mechanism (2) is used to lubricate and oil the needle rod mechanism (3); The oil inlet mechanism (2) comprises an oil inlet joint, an oil guide pipe, a fixing part and an oil storage part, and the oil inlet joint is in communication with the oil guide pipe; The fixing member is connected to the needle rod mechanism (3), and the fixing member is used to fix the oil storage member on the needle rod mechanism (3); The fixing member is provided with a mounting opening, the mounting opening is used to install the oil guide pipe, the oil guide pipe is used to guide the lubricating oil to the oil storage member, and the oil storage member is used to apply the lubricating oil to the needle rod mechanism (3).

2. The sewing machine according to claim 1, characterized in that The needle bar mechanism (3) comprises a needle bar (13) and a shaft sleeve, the shaft sleeve is sleeved on the needle bar (13), and the fixing member is used to fix the oil storage member on the end of the shaft sleeve; Wherein, the fixing member is provided with a mounting hole, and the shaft sleeve is provided with a fixing hole, and the fixing hole cooperates with the mounting hole to be connected to the same connecting member.

3. The sewing machine according to claim 2, characterized in that The fixing member is provided with a clamping plate and a supporting plate, the supporting plate is connected to the end of the clamping plate, the supporting plate extends axially toward the oil storage member, and the mounting hole is provided on the supporting plate; The clamping plate is provided with a mounting groove, and the mounting groove is sleeved on the needle rod (13); the mounting opening is provided at the side end of the clamping plate close to the oil inlet joint.

4. The sewing machine according to claim 3, characterized in that The shaft sleeve is divided into a first shaft sleeve (11) and a second shaft sleeve (12), and the first shaft sleeve (11) and the second shaft sleeve (12) are sleeved on the needle rod (13) at intervals; The oil storage member is divided into a first oil storage member (27) and a second oil storage member (28), wherein the first oil storage member (27) and the second oil storage member (28) are arranged between the first shaft sleeve (11) and the second shaft sleeve (12); The fixing member is divided into a first fixing member (25) and a second fixing member (26), wherein the first fixing member (25) is used to fix the first oil storage member (27) to the end of the first shaft sleeve (11) close to the second shaft sleeve (12); The second fixing member (26) is used to fix the second oil storage member (28) to the end of the second shaft sleeve (12) close to the first shaft sleeve (11).

5. The sewing machine according to claim 4, characterized in that The first fixing member (25) is provided with a clamping block (255), and the clamping block (255) is used to clamp the first shaft sleeve (11); The clamping block (255) is provided with a clamping groove (259), and the width of the clamping groove (259) is less than or equal to the outer diameter of the first shaft sleeve (11).

6. The sewing machine according to claim 4, characterized in that A limiting plate (256) is provided on the first fixing member (25), the limiting plate (256) being connected to an end portion of the first fixing member (25) close to the oil inlet joint, and the limiting plate (256) extending axially in a direction away from the second shaft sleeve (12); Wherein, the installation opening is arranged on the limiting plate (256).

7. The sewing machine according to claim 6, characterized in that The limiting plate (256) is provided with a limiting opening (258), the limiting opening (258) is communicated with the installation opening, and the limiting opening (258) opens at the end of the limiting plate (256) away from the clamping plate; The width of the limiting opening (258) is smaller than the width of the installation opening, and the width of the limiting opening (258) is smaller than the outer diameter of the oil guide pipe.

8. The sewing machine according to claim 1, wherein The oil storage member is provided with a lubrication port, the oil storage member is sleeved on the needle bar mechanism (3) through the lubrication port, and the side wall of the lubrication port is in contact with the outer wall of the needle bar mechanism (3); and / or, The oil storage piece is made of wool felt material.

9. The sewing machine according to claim 1, wherein The oil inlet joint comprises an oil inlet end and an oil outlet end, and the oil outlet end is communicated with the oil guide pipe; The oil inlet end is provided with a refueling nozzle (211), which is in a normally closed state and opens under pressure to allow lubricating oil to flow into the oil guide pipe.

10. The sewing machine according to claim 9, characterized in that The oil inlet joint is connected to the machine head housing (1), the oil inlet end of the oil inlet joint is exposed to the outside of the machine head housing (1), and the oil outlet end of the oil inlet joint is arranged inside the machine head housing (1).

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