CN200943137Y

CN200943137Y - Modified oil feeding device of sewing machine

Info

Publication number: CN200943137Y
Application number: CN 200620113687
Authority: CN
Inventors: 蔡荣全
Original assignee: JIANLIAN SEWING MACHINE CO Ltd
Current assignee: JIANLIAN SEWING MACHINE CO Ltd
Priority date: 2006-05-17
Filing date: 2006-05-17
Publication date: 2007-09-05
Anticipated expiration: 2016-05-17

Abstract

The utility model relates to an improved sewing machine oil-feeding device, which comprises a body and a trunk piston on the body; wherein the body demarcates an oil passage; the passage is provided with a primary end in the oil tank and a secondary end away from the oil passage; the cam rotating with the sewing machine driving shaft drives the trunk piston to move to and fro. When the device is used to match the primary and the second end check valve to respond to the to and fro movement of the trunk piston, the oil material is allowed to enter through the primary end and the secondary end gets away from the oil passage and the oil material is dispensed to the component to be lubricated. Then improvement is made to the problem of cloth material pollution and platform by present oil supply and to prevent the sewing machine from incurring oil material backflow during the temporary operation.

Description

Improved Sewing machines feeding means

Technical field

The utility model relates to a kind of improved Sewing machines feeding means, and is particularly a kind of reciprocating via the cam driven plunger, makes check valve control oil plant be distributed to the Sewing machines feeding means that needs lubricated assembly place.

Background technology

Being used for the Sewing machines that a large amount of cars meet cloth, is prior art because of long-term and continuous action need to inject lubricating oil in easy friction place with the frictional dissipation that slows down assembly; For example Fig. 1 is the exemplary embodiments that has disclosed the Sewing machines feeding means.Comprise body 21, driven shaft 22; Described body 21 is in axially being provided with axis hole, be to allow that described driven shaft 22 enters and rotates freely, in body 21 radially be provided with two copper pipes 211,213, copper pipe 211 is connected the oil pipe 212 that the dispensing oil plants are used, another copper pipe 213 is connected in order to reclaim the oil pipe 214 of oil plant; Described driven shaft 22 is provided with worm gear 221 and strike the oil screw rod 222, when described worm gear 221 rotates with the driving shaft worm screw, be to drive described strike the oil screw rod 222 rotations that are immersed in the oil groove (figure does not show), and then oil plant drawn in the body 21 oil pipe 212 that is connected via described copper pipe 211 oil plant of providing and delivering out again.Unnecessary oil plant through the oil pipe 214 that another copper pipe 213 is connected be recycled to body in, flow into oil groove again to do recycle.

Above-mentioned prior art is to have following shortcoming:

1. when Sewing machines operated as if the sewing of lacking cloth, oil plant was easily too short because of the sewing sequential, causes revolving of strike the oil screw rod 222 to push away energy and can't the lubricating oil system that push smoothly treat oily assembly; So when Sewing machines needs the operation of the of short duration shutdown of normality generation running because of cloth is too short when operating; oil plant in the described oil pipe 212; regular meeting does not continue because of the oil plant propelling movement effect in the described strike the oil screw rod 222; constantly treat oily assembly place not delivering to and produce oil plant; promptly be back to oil groove once more because of suspending to push; can't smoothly and effectively lubricating oil be distributed to desire and do lubricated assembly place, cause the situation of lubricant effect deficiency.

2. assemblies such as the worm screw that existing Sewing machines feeding means is adopted, worm gear 221, strike the oil screw rod 222, its processing is higher than complexity and manufacturing or maintenance cost.

3. strike the oil guide rod 222 often because of the long-time propelling movement effect that produces continuation, and causes oil supply excessive, and via treating that oily assembly place is excessive, causes the pollution condition of cloth and board very huge if in the running of long cloth.

Summary of the invention

The purpose of this utility model promptly is to provide a kind of improved Sewing machines feeding means, is to comprise a body and be configured in the plunger that body directly makes progress; Body shaft inwardly defines asphalt channel; Described passage has second end that first end that is located in the oil groove and the oil plant of providing and delivering leave asphalt channel; Cam with the rotation of Sewing machines driving shaft, but be intermittently to order about described plunger reciprocating motion, with so that the check valve that is configured in first and second end of channel when the reciprocating motion of the described plunger of response, enter or leave passage and allow that oil plant is unidirectional, need lubricated assembly place and guarantee oil plant is distributed to; Improve existing oil supply process and be easy to generate excessive stained cloth, board, and when avoiding Sewing machines to carry out the short distance running, oil supply speed takes place easily not as good as back-flow velocity, and smoothly fuel feeding to treating situation such as oily assembly.

To achieve these goals, the utility model provides a kind of improved Sewing machines feeding means, is to comprise body and the plunger that is configured on the body; Define asphalt channel in the body, described plunger is arranged at UNICOM's asphalt channel part; Described asphalt channel has second end that first end that is located in the oil groove and dispensing oil plant leave asphalt channel; Cam with the rotation of Sewing machines driving shaft, order about described plunger and produce reciprocating motion, and be provided with towards the check valve of asphalt channel and second end at described first end and be provided with another check valve outside asphalt channel, make when the reciprocating motion of the described plunger of response, and allow that oil plant only can enter asphalt channel through first end, and leave asphalt channel through second end, oil plant is distributed to needs the lubricated oily assembly place that treats.

Described plunger is arranged on the body lateral attitude; And there is an end to protrude from body exterior, promoted by described cam.

Spring is set at the end of plunger, the priming plunger outward.

The check valve at the described asphalt channel first end place is made of the ball valve in strike the oil hole and the hole.

The described asphalt channel second end place is provided with a copper pipe that has oil nozzle and oil nozzle to be connected, and the oil pipe of dispensing oil plant is to be socketed on the described oil nozzle mouth, and is provided with ball valve between described copper pipe and oil nozzle.

For novelty, the characteristics that the utility model had, and other purpose and effect, will cooperate appended graphic being illustrated hereinafter, and be tending towards understanding.

Description of drawings

Fig. 1 is the structural map of existing Sewing machines feeding means;

Fig. 2 is a structure schematic appearance of the present utility model;

Fig. 3 is a STRUCTURE DECOMPOSITION schematic diagram of the present utility model;

The structure cross-sectional schematic that Fig. 4 is the utility model plunger when moving;

Structure cross-sectional schematic when Fig. 5 is the double action of the utility model plunger.

Description of reference numerals: 1, the improved feeding means of 2-; 11-post bolt; The 12-spring; 13,21-body; 131,211,213-copper pipe; The 132-oil nozzle; 133,134-check valve; The 135-asphalt channel; 136-strike the oil hole; 137-first end; 138-second end; 14,212,214-oil pipe; The 3-driving shaft; The 31-cam; The 22-driven shaft; The 221-worm gear; 222-strike the oil screw rod.

The specific embodiment

See also Fig. 2, Fig. 3, Fig. 4, feeding means of the present utility model is with Reference numeral 1 expression; Be comprise body 13 and described body 13 axially in the asphalt channel 135 that defines, described asphalt channel 135 has second end 138 that first end 137 that is immersed in the oil groove and dispensing oil plant leave asphalt channel 135; First end, 137 places of described asphalt channel 135 are provided with strike the oil hole 136 and check valve 133 (can be a ball valve) inwardly, to guarantee that oil plant is after strike the oil hole 136 is inhaled into asphalt channel 135, can be subjected to stopping of described check valve 133, the unlikely oil groove that refluxes again, and can remain in the asphalt channel 135; Second end, 138 places of asphalt channel 135 are provided with a copper pipe 131 that has oil nozzle 132 and oil nozzle 132 to be connected in addition, the oil pipe 14 of dispensing oil plant is to be socketed on the described oil nozzle mouth 132, be provided with outwardly check valve 134 at described

copper pipe

131 and 132 of oil nozzles, allowing that oil plant is sent from format body 13 thus, and further can stop in the oil pipe 14 the oil plants described asphalt channel 135 that refluxes.Show on the position of described body 13 horizontal UNICOM oil circuit channels 135 among the figure, be provided with reciprocating plunger 11; Described plunger 11 has an end to protrude from body 13 outsides, is sewed cam 31 promotions that machine driving shaft 3 rotates, and can produces toward moving; Other has spring 12 to be set at the end of plunger 11, makes plunger 11 can produce double action.

See also Fig. 5, when described cam 31 with respect to the maximum radial position A point of driving shaft 3 from driving shaft 3 left sides (being to be defined as second activated position this illustrative examples) to rotate to the right (be to be defined as first activated position, the shown position of Fig. 4 for example) time, described plunger 11 because of the promotion that is subjected to described cam 31 in body 13 toward moving; The thrust that plunger 11 is given birth to toward movable property can force the check valve 133 of position at the passage first end place 137 to move down, sealing strike the oil hole 136.But push the check valve 134 that is arranged on asphalt channel 135 second ends 137 open and leave asphalt channel 135; Make the oil plants in the asphalt channel 135 enter oil pipe 14, and be dispensed into along oil pipe 14 and need the lubricated oily assembly place that treats via described oil nozzle 132.

When the solstics of described cam 31 from the position of correspondence compacting plunger 11 ends (i.e. first activated position, the shown position of Fig. 4) rotation is away from the position of plunger 11 ends (i.e. second activated position, the shown position of Fig. 5) time, the compressing power of spring 12 lowers gradually, and the energy that release had before been accumulated, make the gravitation of plunger 11 double actions force the sealing of reversing of the check valve 134 at described asphalt channel 135 second ends 138 places, make oil plants in the oil pipe 14 described asphalt channel 135 that can't reflux; Simultaneously, the check valve 133 at described asphalt channel 135 first ends 137 places, to open strike the oil hole 136 towards asphalt channel 135 intrinsic displacements because of the gravitation of firmly filling in 11 double actions, and the oil plant of oil groove 151 must be entered in the asphalt channel 135 via described strike the oil hole 136 fill up oil plant, to reach pressure balance; When plunger 11 promoted to press in asphalt channel 135 because of cam 31 answers produce, the check valve 133 of described first end just can be replied sealing strike the oil hole 136 again, and example is situation as shown in Figure 4.

Therefore, under described plunger 11 continuous intermittently reciprocating motion effects, oil plant also can constantly be inhaled in the asphalt channel 135 through described first end 137 from oil groove off and on, enter oil pipe 14 via asphalt channel 135 second ends 138 again, do lubricated assembly place to reach oil plant to the desire of providing and delivering effectively really, reduce the frictional dissipation of inter-module.

Another advantage of the utility model, be when Sewing machines meets cloth can continue to produce the operation of time-out in running than weak point because of car, even if the promotion of plunger 11 or gravitation disappear, the check valve 134 at described asphalt channel 135 second ends 138 places is that can automatically close up oil pipe 14 leads to the path of asphalt channel 135, makes the oil plants in the oil pipe 14 can't withdrawing oil paths 135.So, begin to operate Sewing machines when motion in next time, lubricating oil can be distributed to desire effectively and do lubricated assembly place, and can substantially improve existing easily because of the oil plant back-flow velocity faster than dispensing speed, can't be distributed to the disappearance that the assembly place is lubricated smoothly; And assembly such as the be improved higher worm screw of existing Sewing machines feeding means processed complex and cost, worm gear 221, strike the oil screw rod 222 and can effectively reduce and make and maintenance cost.

The above only is a preferred embodiment of the present utility model, is not to be used for limiting the scope that the utility model is implemented.Be that all equalizations of being done according to the utility model claim change and modification, be all the utility model claim and contain.

Claims

1. an improved Sewing machines feeding means is characterized in that: be to comprise body and the plunger that is configured on the body; Define asphalt channel in the body, described plunger is arranged at UNICOM's asphalt channel part; Described asphalt channel has second end that first end that is located in the oil groove and dispensing oil plant leave asphalt channel; Cam with the rotation of Sewing machines driving shaft, order about described plunger and produce reciprocating motion, and be provided with towards the check valve of asphalt channel and second end at described first end and be provided with another check valve outside asphalt channel, make when the reciprocating motion of the described plunger of response, and allow that oil plant only can enter asphalt channel through first end, and leave asphalt channel through second end, oil plant is distributed to needs the lubricated oily assembly place that treats.

2. improved Sewing machines feeding means as claimed in claim 1 is characterized in that: described plunger is arranged on the body lateral attitude; And there is an end to protrude from body exterior, promoted by described cam.

3. improved Sewing machines feeding means as claimed in claim 1 or 2, it is characterized in that: spring is set at the end of plunger, the priming plunger outward.

4. improved Sewing machines feeding means as claimed in claim 1 or 2 is characterized in that: the check valve at the described asphalt channel first end place is made of the ball valve in strike the oil hole and the hole.

5. improved Sewing machines feeding means as claimed in claim 3 is characterized in that: the check valve at the described asphalt channel first end place is made of the ball valve in strike the oil hole and the hole.

6. improved Sewing machines feeding means as claimed in claim 1 or 2, it is characterized in that: the described asphalt channel second end place is provided with a copper pipe that has oil nozzle and oil nozzle to be connected, the oil pipe of dispensing oil plant is to be socketed on the described oil nozzle mouth, and is provided with ball valve between described copper pipe and oil nozzle.

7. improved Sewing machines feeding means as claimed in claim 3, it is characterized in that: the described asphalt channel second end place is provided with a copper pipe that has oil nozzle and oil nozzle to be connected, the oil pipe of dispensing oil plant is to be socketed on the described oil nozzle mouth, and is provided with ball valve between described copper pipe and oil nozzle.

8. improved Sewing machines feeding means as claimed in claim 4, it is characterized in that: the described asphalt channel second end place is provided with a copper pipe that has oil nozzle and oil nozzle to be connected, the oil pipe of dispensing oil plant is to be socketed on the described oil nozzle mouth, and is provided with ball valve between described copper pipe and oil nozzle.

9. improved Sewing machines feeding means as claimed in claim 5, it is characterized in that: the described asphalt channel second end place is provided with a copper pipe that has oil nozzle and oil nozzle to be connected, the oil pipe of dispensing oil plant is to be socketed on the described oil nozzle mouth, and is provided with ball valve between described copper pipe and oil nozzle.