Sewing machine lubricating system and sewing machine

Abstract

The utility model discloses a sewing machine lubricating system and a sewing machine, the sewing machine comprises a machine base and a machine head arranged on the upper portion of the machine base, the lubricating system comprises a first oil box, an oil collecting box and an oil disc, and the first oil box is connected with parts in the machine head through a first oil supply pipe; parts in the machine head are connected with the oil collecting box through an oil outlet pipe, and the oil collecting box is connected with parts in the machine base through a second oil supply pipe. The oil pan is located below parts in the machine base and used for receiving oil, the oil pan is connected with the first oil box through an oil return pipe, and an oil pump is arranged on the oil return pipe; oil supply lines are arranged in the first oil supply pipe, the oil outlet pipe and the second oil supply pipe, a first circulation loop of oil is formed among the first oil box, the first oil supply pipe, the oil outlet pipe, the oil collecting box, the second oil supply pipe, the oil disc and the oil return pipe, the lubricating system is simple in structure, and the oil utilization rate can be increased.

Description

TECHNICAL FIELD

[0001] The utility model relates to sewing machine technical field, concretely relates to a sewing machine lubricating system and sewing machine. BACKGROUND

[0002] Sewing machine is with one or more sewing line, on the seam material forms one or more line, makes one layer or more seam material interweaves or sews up the machine, in the sewing machine working process, swing frame, rotating shuttle and the like spare part is high -speed motion, needs to add lubricating oil to these spare parts lubrication. The existing sewing machine lubricating system usually will set up oil pump and oil recovery pump, utilizes oil pump to spare part and carries out oil supply, utilizes oil recovery pump to recover the oil material that is redundant or from spare part, pump will occupy bigger space, and the running speed of pump machine is related with sewing machine main shaft's rotating speed, therefore the pumping rate of oil material is difficult to control. In order to realize to the oil supply of multiple spare parts, the oil supply pipeline in sewing machine is numerous, and the oil recovery pipeline that sets up correspondingly is also numerous, leading to the complicated structure of lubricating system, not only will occupy a large amount of internal space of sewing machine, simultaneously can also increase the production cost of sewing machine. SUMMARY

[0003] The utility model aims at providing a new sewing machine lubricating system.

[0004] In order to achieve the above-mentioned purpose, the utility model adopts the technical scheme of a sewing machine lubricating system, the sewing machine includes a machine base and a machine head arranged on the upper part of the machine base, and the sewing machine lubricating system comprises:

[0005] A first oil box having a first accommodating cavity capable of accommodating oil, the first oil box is connected to the spare parts in the machine head through a first oil supply pipe;

[0006] A collecting box having a second accommodating cavity capable of accommodating oil, the spare parts in the machine head are connected to the collecting box through an oil outlet pipe, and the collecting box is connected to the spare parts in the machine base through a second oil supply pipe;

[0007] An oil pan, the oil pan is located below the spare parts in the machine base, and is used for receiving the oil flowing out of the spare parts in the machine base;

[0008] An oil pump, the oil pan and the oil pump are connected through an oil return pipe, and the oil pump and the first oil box are connected through the oil return pipe;

[0009] The first oil supply pipe, the oil outlet pipe and the second oil supply pipe are provided with oil supply lines, and the first oil box, the first oil supply pipe, the oil outlet pipe, the collecting box, the second oil supply pipe, the oil pan and the oil return pipe form a first circulating loop of oil.

[0010] In some embodiments, the first oil box is arranged in the machine head; and / or, the oil collecting box is arranged in the machine base.

[0011] In some embodiments, the sidewall of the first oil box is provided with an observation window made of transparent material, which is located on the housing of the machine head; the first oil box is provided with an oil injection hole, which is located on the housing of the machine head.

[0012] In some embodiments, the components in the machine head include a swing frame and an interaction amount adjusting mechanism, which are connected in series through the first oil supply pipe, and the machine head is further provided with an oil absorbing felt, which is located below the interaction amount adjusting mechanism; the oil outlet pipe is provided with a plurality of oil outlet pipes, and the swing frame and the oil absorbing felt are connected with the oil collecting box through the oil outlet pipe.

[0013] In some embodiments, the machine base is provided with a shuttle holder, which is located above the oil pan; the sewing machine lubricating system includes a third oil supply pipe, which is connected between the first oil box and the shuttle holder, and the first oil box, the third oil supply pipe, the oil pan and the oil return pipe form a second circulating loop of oil.

[0014] In some embodiments, a second oil box is arranged in the pipeline of the third oil supply pipe.

[0015] In some embodiments, the third oil supply pipe includes a first pipe section and a second pipe section, the first pipe section is connected between the upper part of the second oil box and the first oil box, and the second pipe section is connected between the lower part of the second oil box and the shuttle holder; the components in the machine base include a stitch length adjusting assembly, and the second oil supply pipe is connected between the oil collecting box and the stitch length adjusting assembly; the lubricating system further includes a branch oil pipe, which is connected between the upper part of the second oil box and the stitch length adjusting assembly.

[0016] In some embodiments, the second oil box is provided with a partition plate, which divides the interior of the second oil box into a first chamber and a second chamber, the first chamber and the second chamber are in communication with each other, and the first chamber is located below the second chamber, the second pipe section communicates with the first chamber, and the branch oil pipe communicates with the second chamber.

[0017] In some embodiments, the projection area of the second chamber on the horizontal plane is smaller than the projection area of the first chamber on the horizontal plane.

[0018] Another object of the present application is to provide a new sewing machine.

[0019] In order to achieve the above object, the utility model discloses the technical scheme that adopts: a sewing machine, including the lubricating system of sewing machine described above.

[0020] Due to the use of the above technical scheme, the utility model has the following advantages compared with the prior art: the lubricating system of the sewing machine of the utility model only sets up one oil pump, and the oil pump is used to pump the oil collected by the oil pan into the first containing cavity of the first oil box, and the first oil supply pipe, the oil outlet pipe and the second oil supply pipe of the lubricating system are connected through the oil supply line to realize the delivery of the oil, compared with directly pumping the oil by the pump, the oil supply line can more stably deliver the oil, avoiding too much or too little oil supply. Meanwhile, the lubricating system forms the first circulating loop of the oil between the first oil box, the parts in the head, the oil collecting box, the parts in the machine base and the oil pan through the first oil supply pipe, the oil outlet pipe, the second oil supply pipe and the oil return pipe, and the first circulating loop can supply oil to the parts in the head and the machine base, the pipeline is more compact, and the recycling of the oil can be realized. In the first circulating loop, the oil collected from the head is used to supply oil to the parts in the machine base by the oil collecting box, greatly improving the utilization efficiency of the oil in one cycle. BRIEF DESCRIPTION OF DRAWINGS

[0021] ATTACHED Figure 1 It is a three-dimensional structure schematic view of the sewing machine of the utility model embodiment;

[0022] ATTACHED Figure 2 It is a sectional view schematic view of the utility model embodiment; Figure 1

[0023] ATTACHED Figure 3 It is a schematic view of the lubricating system of the sewing machine in the utility model embodiment; Figure 2

[0024] ATTACHED Figure 4 It is the longitudinal sectional view schematic view of the second oil box in the embodiment;

[0025] Among them: 100, machine base;101, shuttle holder;102, stitch length adjusting assembly;200, head;201, swing frame;202, interaction amount adjusting mechanism;203, oil absorption felt;1, first oil box;11, observation window;12, oil injection hole;2, first oil supply pipe;3, oil collecting box;4, oil outlet pipe;5, second oil supply pipe;6, oil pan;7, oil return pipe;71, oil pump;8, third oil supply pipe;81, first pipe section;82, second pipe section;9, second oil box;91, partition;92, first chamber;93, second chamber;10, branch oil pipe. DETAILED DESCRIPTION

[0026] ​​The technical solution of this utility model will be described in detail below with reference to the accompanying drawings and specific embodiments, so that the advantages and features of this utility model can be more easily understood by those skilled in the art. Obviously, the embodiments described in this application are only a part of the embodiments, not all of them. All other embodiments obtained by those skilled in the art based on the embodiments in this application without creative effort are within the scope of protection of this application.

[0027] See Figure 1 The sewing machine shown includes a base 100 and a sewing head 200 disposed on the upper part of the base 100. The sewing machine also includes, for example, Figure 3 The sewing machine lubrication system shown is used to provide lubricating oil to parts to ensure the normal operation of the sewing machine. The sewing machine lubrication system includes a first oil box 1, a first oil supply pipe 2, an oil collection box 3, an oil outlet pipe 4, a second oil supply pipe 5, an oil pan 6, a return oil pipe 7, and an oil pump 71. The first oil box 1 has a first receiving cavity capable of holding oil. The first oil supply pipe 2 is connected between the parts inside the machine head 200 and the first oil box 1. The oil collection box 3 has a second receiving cavity capable of holding oil. The oil outlet pipe 4 is connected between the parts inside the machine head 200 and the oil collection box. The second oil supply pipe 5 is connected between the parts inside the machine base 100 and the oil collection box 3. The oil pan 6 is located below the parts inside the machine base 100 and is used to collect oil flowing out from the parts inside the machine base 100. The return oil pipe 7 is connected between the oil pan 6 and the first oil box 1, and the oil pump 71 is installed in the pipeline of the return oil pipe 7. (See Figure 1 for details.) Figure 3 As shown, the oil pump 71 is connected to the oil pan 6 and the first oil box 1 through the return oil pipe 7. The oil pump 71 can pump the oil in the oil pan 6 into the first receiving cavity of the first oil box 1.

[0028] The first oil supply pipe 2, the oil outlet pipe 4, and the second oil supply pipe 5 are equipped with oil supply lines. In this embodiment, the oil supply lines are made of fiber material. Through capillary action and siphon principle, the oil supply lines can transport oil. Compared with directly using a pump to supply oil, the oil supply lines can better control the oil supply volume.

[0029] The first oil box 1, the first oil supply pipe 2, the oil outlet pipe 4, the oil collecting box 3, the second oil supply pipe 5, the oil pan 6 and the oil return pipe 7 form a first circulation loop of oil, so that the oil is recycled. In the first circulation loop, the oil in the first accommodating cavity is delivered to the components in the machine head 200 through the first oil supply pipe 2, so as to lubricate the components in the machine head 200. The oil flowing out of the components in the machine head 200 is collected in the second accommodating cavity of the oil collecting box 3 through the oil outlet pipe 4. The oil in the second accommodating cavity is delivered to the components in the machine base 100 through the second oil supply pipe 5, so as to lubricate the components in the machine base 100, thereby improving the utilization efficiency of the oil in one cycle. During the operation of the sewing machine, the oil on the components in the machine base 100 drops into the oil pan 6, and the oil in the oil pan 6 is pumped back to the first oil box 1 by the oil pump 71, so that the oil is recycled.

[0030] In this embodiment, the oil is inevitably consumed during the circulation process. The skilled person can compensate for the loss of oil by supplementing oil into the first oil box 1. In this embodiment, as shown in Figure 2 The first oil box 1 is arranged in the machine head 200, and the first oil box 1 is provided with an oil filling hole 12. The oil filling hole 12 is arranged on the shell of the machine head 200, which facilitates the skilled person to supplement oil. Figure 2 In this embodiment, as shown in The oil collecting box 3 is arranged above the oil pan 6, and the oil collecting box 3 is arranged below the machine head 200. Since the oil collecting box 3 is arranged below the machine head 200, the oil can flow into the oil collecting box 3 under the action of gravity, thereby facilitating the oil collecting box 3 to collect the oil in the machine head 200.

[0031] In this embodiment, the side wall of the first oil box 1 is provided with an observation window 11 made of transparent material, and the observation window 11 is arranged on the shell of the machine head 200. The skilled person can more conveniently observe the amount of oil in the first accommodating cavity. In this embodiment, the oil filling hole 12 is arranged at the upper portion of the observation window 11.

[0032] In this embodiment, the components in the machine head 200 include a swing frame 201 and an interaction amount adjusting mechanism 202. The swing frame 201 and the interaction amount adjusting mechanism 202 are connected in series through the first oil supply pipe 2, and the oil in the first oil box 1 can be delivered to the swing frame 201 and the interaction amount adjusting mechanism 202 through the first oil supply pipe 2. In this embodiment, the machine head 200 is further provided with an oil absorbing felt 203, which is arranged below the interaction amount adjusting mechanism 202. The oil absorbing felt 203 is used to collect the oil spilled from the interaction amount adjusting mechanism 202. The swing frame 201 and the oil absorbing felt 203 are connected with the oil collecting box 3 through the oil outlet pipe 4, which not only realizes the collection of the oil in the machine head 200, avoids the continuous accumulation of the oil and finally causes the oil to drop on the sewing material to contaminate the sewing material, but also enables the collected oil to be delivered to the machine base 100 and lubricate the components in the machine base 100.

[0033] In this embodiment, the components inside the base 100 include a needle pitch adjustment assembly 102. The second oil supply pipe 5 is connected between the oil collection box 3 and the needle pitch adjustment assembly 102. The oil collected in the oil collection box 3 is transported to the needle pitch adjustment assembly 102 through the second oil supply pipe 5 and lubricated.

[0034] In this embodiment, a shuttle frame 101 is provided inside the machine base 100, and the shuttle frame 101 is located above the oil pan 6. The sewing machine lubrication system includes a third oil supply pipe 8, which connects the first oil box 1 and the shuttle frame 101. The first oil box 1, the third oil supply pipe 8, and the oil pan 6 form a second circulation loop. During the operation of the sewing machine, the shuttle of the shuttle frame 101 rotates continuously at high speed, thus requiring a large amount of lubricating oil. In this embodiment, the oil in the first receiving cavity is transported to the shuttle frame 101 through the third oil supply pipe 8, and the dripping oil is collected by the oil pan 6 located below the shuttle frame 101. Then, the oil in the oil pan 6 is pumped back to the first oil box 1 by the oil pump 71, thereby realizing the recycling of oil.

[0035] In this embodiment, a second oil box 9 is provided in the third oil supply pipe 8. Since there is a height difference between the first oil box 1 and the shuttle 101, the oil will be continuously transported to the shuttle 101 along the third oil supply pipe 8 under pressure. By setting the second oil box 9, the oil transported to the shuttle 101 can be temporarily stored, the oil supply speed to the shuttle 101 can be slowed down and the oil supply pressure of the shuttle 101 can be relieved.

[0036] Specifically, see Figure 3 As shown, the third oil supply pipe 8 includes a first pipe section 81 and a second pipe section 82. The first pipe section 81 connects the upper parts of the first oil box 1 and the second oil box 9. In this embodiment, the first pipe section 81 is connected to the top of the second oil box 9, and the second pipe section 82 is connected between the lower part of the second oil box 9 and the shuttle frame 101. The lubrication system also includes a branch oil pipe 10, which connects the upper part of the second oil box 9 and the needle pitch adjustment assembly 102. When there is too much oil in the second oil box 9, the branch oil pipe 10 can guide the oil to the needle pitch adjustment assembly 102, thereby reducing the pressure on the shuttle frame 101.

[0037] Specifically, in this embodiment, see Figure 4 As shown, the second oil box 9 is provided with a partition 91, which divides the interior of the second oil box 9 into a first chamber 92 and a second chamber 93. The first chamber 92 and the second chamber 93 are interconnected, and the first chamber 92 is located below the second chamber 93. The second pipe section 82 is connected to the first chamber 92, and the branch oil pipe 10 is connected to the second chamber 93.

[0038] In the embodiment, the second chamber 93 has a projection area on a horizontal plane smaller than that of the first chamber 92, so that when the first chamber 92 is filled with oil, the liquid level of the oil in the second chamber 93 can be quickly raised, so that the oil in the second chamber 93 can be quickly delivered to the needle spacing adjustment assembly 102, and the pressure on the shuttle holder 101 is reduced.

[0039] In summary, the sewing machine of the embodiment has a lubricating system provided with only one oil pump 71 for pumping the oil collected by the oil pan 6 into the first accommodating cavity of the first oil box 1. The first oil supply pipe 2, the oil outlet pipe 4, and the second oil supply pipe 5 of the lubricating system are connected by oil supply lines to deliver the oil, which is more stable than directly pumping the oil by the pump, and can avoid over-supply or under-supply of the oil. Meanwhile, the lubricating system forms a first circulation loop of the oil between the first oil box 1, the components in the head 200, the oil collecting box 3, the components in the machine base 100, and the oil pan 6 through the first oil supply pipe 2, the oil outlet pipe 4, the second oil supply pipe 5, and the oil return pipe 7, so that the components in the head 200 and the machine base 100 can be supplied with oil through the first circulation loop, the pipeline is more compact, and the oil can be recycled. In the first circulation loop, the oil collected from the head 200 by the oil collecting box 3 is used to supply the components in the machine base 100, which greatly improves the utilization efficiency of the oil in one cycle.

[0040] The above embodiments are only for illustrating the technical concept and characteristics of the present application, and the purpose is to enable those skilled in the art to understand the content of the present application and implement it, and cannot limit the protection scope of the present application. Any equivalent changes or modifications made according to the spirit and essence of the present application shall be covered within the protection scope of the present application.

Claims

1. A sewing machine lubrication system, said sewing machine comprising a machine base and a machine head disposed at an upper portion of said machine base, characterized by: The sewing machine lubricating system comprises: a first oil box having a first accommodating cavity capable of containing oil, the first oil box being connected to components in the machine head through a first oil supply pipe; a collecting box having a second accommodating cavity capable of containing oil, the components in the machine head being connected to the collecting box through an oil outlet pipe, the collecting box being connected to components in the machine base through a second oil supply pipe; an oil pan, the oil pan being located below the components in the machine base and being used to receive oil flowing from the components in the machine base; an oil pump, the oil pan and the oil pump being connected through an oil return pipe, and the oil pump and the first oil box being connected through the oil return pipe; the first oil supply pipe, the oil outlet pipe and the second oil supply pipe are provided with oil supply lines, and the first oil box, the first oil supply pipe, the oil outlet pipe, the collecting box, the second oil supply pipe, the oil pan and the oil return pipe form a first circulating loop of oil.

2. The sewing machine lubrication system of claim 1, wherein: The components in the machine head include a swing frame and an interactive amount adjusting mechanism, the swing frame and the interactive amount adjusting mechanism are connected in series through the first oil supply pipe, the machine head is further provided with an oil absorbing felt, the oil absorbing felt is located below the interactive amount adjusting mechanism, the oil outlet pipe is provided with a plurality of oil outlet pipes, and the swing frame and the oil absorbing felt are connected to the collecting box through the oil outlet pipes; and / or, the components in the machine base include a stitch length adjusting assembly, and the second oil supply pipe is connected between the collecting box and the stitch length adjusting assembly.

3. The sewing machine lubrication system of claim 1, wherein: The machine base is provided with a shuttle holder, the shuttle holder is located above the oil pan, the sewing machine lubricating system comprises a third oil supply pipe, the third oil supply pipe is connected between the first oil box and the shuttle holder, and the first oil box, the third oil supply pipe, the oil pan and the oil return pipe form a second circulating loop of oil.

4. The sewing machine lubrication system of claim 3, wherein: A second oil box is arranged in the pipeline of the third oil supply pipe.

5. The sewing machine lubrication system of claim 4, wherein: The third oil supply pipe comprises a first pipe segment and a second pipe segment, the first pipe segment is connected between the upper portion of the second oil box and the first oil box, the second pipe segment is connected between the lower portion of the second oil box and the shuttle holder, the machine base is provided with a stitch length adjusting assembly, and the lubricating system further comprises a branch oil pipe, the branch oil pipe is connected between the upper portion of the second oil box and the stitch length adjusting assembly.

6. The sewing machine lubrication system of claim 5, wherein: A partition is arranged in the second oil box, the partition divides the interior of the second oil box into a first chamber and a second chamber, the first chamber and the second chamber are in communication with each other, the first chamber is located below the second chamber, the second pipe segment communicates with the first chamber, and the branch oil pipe communicates with the second chamber.

7. The sewing machine lubrication system of claim 6, wherein: The projection area of the second chamber on a horizontal plane is smaller than the projection area of the first chamber on a horizontal plane.

8. The sewing machine lubrication system of claim 1, wherein: The first oil box is arranged in the machine head, and / or the collecting box is arranged in the machine base.

9. The sewing machine lubrication system of claim 1, wherein: A side wall of the first oil box is provided with an observation window made of transparent material, and the observation window is located on the shell of the machine head. And / or, the first oil box is provided with an oil injection hole, and the oil injection hole is located on the shell of the machine head.

10. A sewing machine characterized by: The sewing machine lubricating system comprises the lubricating system according to any one of claims 1 to 9.

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