CN1065198C - Changeble drop-free rubber pressing gun suitable for various viscosity rubber pipe - Google Patents
Changeble drop-free rubber pressing gun suitable for various viscosity rubber pipe Download PDFInfo
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- CN1065198C CN1065198C CN95116156A CN95116156A CN1065198C CN 1065198 C CN1065198 C CN 1065198C CN 95116156 A CN95116156 A CN 95116156A CN 95116156 A CN95116156 A CN 95116156A CN 1065198 C CN1065198 C CN 1065198C
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- push strut
- piston push
- fixture block
- rubber pressing
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05C—APPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05C17/00—Hand tools or apparatus using hand held tools, for applying liquids or other fluent materials to, for spreading applied liquids or other fluent materials on, or for partially removing applied liquids or other fluent materials from, surfaces
- B05C17/005—Hand tools or apparatus using hand held tools, for applying liquids or other fluent materials to, for spreading applied liquids or other fluent materials on, or for partially removing applied liquids or other fluent materials from, surfaces for discharging material from a reservoir or container located in or on the hand tool through an outlet orifice by pressure without using surface contacting members like pads or brushes
- B05C17/01—Hand tools or apparatus using hand held tools, for applying liquids or other fluent materials to, for spreading applied liquids or other fluent materials on, or for partially removing applied liquids or other fluent materials from, surfaces for discharging material from a reservoir or container located in or on the hand tool through an outlet orifice by pressure without using surface contacting members like pads or brushes with manually mechanically or electrically actuated piston or the like
- B05C17/014—Hand tools or apparatus using hand held tools, for applying liquids or other fluent materials to, for spreading applied liquids or other fluent materials on, or for partially removing applied liquids or other fluent materials from, surfaces for discharging material from a reservoir or container located in or on the hand tool through an outlet orifice by pressure without using surface contacting members like pads or brushes with manually mechanically or electrically actuated piston or the like comprising means for preventing oozing
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Abstract
A caulking gun having a fixed first bearing surface, and an engagement member for preventing rearward movement of a plunger shaft while permitting forward movement thereof. Following termination of forward movement of the plunger shaft in response to operation of a handle mechanism of the gun, the plunger shaft selectively can be moved rearwardly a predetermined distance in response to cartridge back pressure. In an alternative mode of operation, the rearward movement is substantially prevented for effecting precise control and smoothly continuous feeding of media from the gun.
Description
The present invention relates to push be used for stifled meeting, the rubber pressing gun of the sebific duct of sealing etc., particularly relate to and can after moulding each time, discharge the sebific duct pressure inside, thus the rubber pressing gun of avoiding excessive glue to ooze.
Being used to push paste or plastic medium, is well-known in particular for the rubber pressing gun of disposable sebific duct, and the US Patent of CHANG is exactly for the 4th, 081, No. 112 an example of this class rubber pressing gun in referring to Patent Document.The structural principle of this class rubber pressing gun is: a sebific duct removably is housed on the rubber pressing gun, and the piston push strut of rubber pressing gun acts on the piston of sebific duct; When pulling spanner, by the effect of spanner mechanism, push strut is pushed forward, thereby makes glue controlledly be pushed out from the sebific duct mouth.Push strut is that uniaxially is pushed into usually.Existing various technical design mainly is that relevant piston push strut is handled the antagonistic force that spanner mechanism is subjected to when not pushed ahead.
The patent disclosure of CHANG a kind of rubber pressing gun, have one and drive fixture block and one second fixture block.When pushing ahead, the driving fixture block blocks push strut and drives it for the effect of friction force and travels forward.Second fixture block then frictionally engaging push strut moves backward to stop push strut, and the driving fixture block and second fixture block separate and oppositely be installed on the push strut.When spanner is released when returning its initial position, drive fixture block and unclamp push strut, need situation that push strut is transferred to when changing sebific duct etc., second fixture block can be pressed to unclamp push strut with hand.Even if stopped moulding in many cases, but because the effect of very big pressure during moulding, sebific duct swells or rubber pressing gun generation deformation and produce pressure, causes many N/R glue constantly to flow out the sebific duct mouth.Certainly, press second fixture block and can partly discharge this pressure at least, but under many situations, after having pressed glue, firmly press second fixture block exactly immediately, still have undesirable solation and come out.This situation is common especially when using very big pressure moulding.
This for no other reason than that wrench device is difficult to discharge immediately, but is not pressing second fixture block rapidly than difficult many under low moulding pressure under the high moulding pressure under very big application force.
We know that simple rubber drop-free rubber pressing gun does not have second fixture block.Yet, forfeiture check function and bad under the situation of recoil is being arranged, because each recoil all can make moulding be interrupted.
More very be that under high moulding pressure, the range difference that this recoil makes the piston push strut return seldom equals the distance that push strut is pushed ahead, thereby causes this simple rubber drop-free rubber pressing gun ineffective under high moulding pressure.Some patent discloses this class and has been used for having the rubber pressing gun that limited friction stops the piston push strut to be moved backward under the general pressure.For example, 4,461, No. 407 US Patent of D.FINNIGAN, 4,572, No. 409 US Patent of G.FINNIGAN and 4,923, No. 096 US Patent of ENNIS.4,009, No. 804 U.S. Patent Publications of COSTA a kind of non-glue rubber pressing gun.The fulcrum of the non-return fixture block of this rifle is flexible coupling with a spring and the body of a gun, thereby non-return fixture block and piston push strut can move to discharge the pressure of sebific duct backward with the recoil that spanner mechanism is subjected to together.Each rubber pressing gun design of prior art all has the shortcoming below at least one:
1, because recoil has lost big section advance distance, medium that can not actv. extruding high slumpability;
2, for repeatedly pulling spanner mechanism, be difficult to squeeze out solation continuously, especially the medium of centering high slumpability is all the more so;
3, flow out excessive glue, during in particular for the medium of low toughness;
4, the aging or contaminated etc. of rubber can influence result of use.
The purpose of this invention is to provide a kind of rubber pressing gun, it can overcome above-mentioned shortcoming, is used for the medium of various toughness effectively, and energy continuous effective ground moulding when pulling spanner mechanism repeatedly, and can control the moulding process well and not have excessive solation to go out, can also accomplish inexpensive simultaneously.
According to a kind of rubber pressing gun of the present invention, comprise a framework that is used to adorn sebific duct; The piston push strut that can move along the framework axis is used for forward the moulding material being extruded from rifle going; One is contained in the spanner mechanism that can pull on the framework, is used for meshing and pushing ahead when pulling spanner mechanism the piston push strut, and this spanner mechanism has a position of loosening to move backward to allow the piston push strut; The one packaged clutch fixture block that on framework, can move and have two orientations, first orientation is used to be stuck in makes its relative clutch fixture block can not move backward forward on the piston push strut, and second orientation allows the relative clutch fixture block of piston push strut to move freely along axle; One makes the clutch fixture block become first orientation to be stuck in the device on the piston push strut; Relative framework and the first fixing contact surface move when first orientation backward to stop the clutch fixture block; Relative framework movably control surface moves forward when first orientation to stop the clutch fixture block, simultaneously this control surface distance first contact surface enough distances are arranged in case the clutch fixture block first orientation and and situation that control surface contact under when spanner mechanism discharged playback pine state, allow selectively the piston push strut backward mobile one be scheduled to apart from E.
This rubber pressing gun can also comprise a locking component with first unlock state and second lock-out state, makes that control surface limits mobile backward distance less than distance E when lock-in state.Control surface relative framework when locking component is in non-locking attitude is located.When locking component during in lock-in state, backward move less than under non-locking attitude backward move about 10.Be under the lock-in state when discharging spanner mechanism playback pine state at locking component, can stop the piston push strut to move backward effectively.Be at least about 2.54 millimeters (0.1 inches) apart from E.Make the clutch fixture block become the device of first orientation to comprise a non-return piece spring that is compressed between framework and the clutch fixture block, is positioned at piston push strut one side opposite with limit, the first contact surface place.
Another kind of design-calculated rubber pressing gun of the present invention also comprises one under control surface allows situation that the piston push strut can move backward, makes the piston push strut be subjected to making mobile backward device of time spent when spanner mechanism is released the pressure that playback pine attitude moulding material inside had.
This rubber pressing gun can also comprise: a conversion connecting strap that is contained in movably between clutch fixture block and the framework, make when control surface provides space that the clutch fixture block moves forward with forward the motion of corresponding piston push strut, the clutch fixture block under first state can with piston push strut mobile one distance that is E to the maximum together; And friction engagement conversion connecting strap is so that the piston push strut needs the power of a designed size device that could move backward and allow the mobile backward device of piston push strut in advance.This rubber pressing gun can also comprise a conversion rod that plays the control surface effect, this conversion rod passes a pair of conversion groove on a pair of link slot and the framework from the conversion connecting strap, thereby will change connecting strap and framework dynamically connects together, and can between the two-end-point of conversion groove, be changed selectively.With the device of clutch fixture block jack-up and friction engagement conversion connecting strap can comprise one be fixed on the conversion connecting strap, an end acts on the clutch fixture block, the other end then acts on the tension spring that conversion connecting strap and conversion rod are frictionally meshed together.
Above-mentioned spanner dipper crowding gear also can design and comprise first ratchet and second ratchet that is engaged on tooth piston push strut; First ratchet is contained on the spanner with pushing dentation piston push strut, and the axle of second ratchet is contained on the framework and two positions can be arranged; First position makes when spanner mechanism is released dentation piston push strut move backward to be no more than on the push strut and the interdental space of the second ratchet engagement place, and second position makes the mobile backward distance of when spanner mechanism is released piston push strut greater than the interdental space on the piston push strut.The axle of second ratchet is contained in the substantially parallel axial trough of a pair of and piston push strut on the framework; The primary importance of second ratchet and the second place lay respectively at the two ends of axial trough.This kind rubber pressing gun comprises that also one is passed on the framework a pair of conversion groove and conversion rod movably, and is compressed in and " crosses the " center " spring between the conversion rod and second ratchet.
Multi-functional rubber pressing gun according to the present invention provides swimmingly moulding operation continuously, can be totally and stop moulding exactly and do not have excessive glue and ooze, and the medium that is pushed can be various viscosity.
By the detailed description of embodiment being understood above-mentioned relevant characteristics of the present invention with other, various its variant designs and advantage better with helping below in conjunction with accompanying drawing.In the accompanying drawing:
Fig. 1 is the segmentation top view of rubber pressing gun of the present invention;
Fig. 2 is the part front elevation of Fig. 1 rubber pressing gun;
Fig. 3 is the amplification of the part top view of Fig. 1 rubber pressing gun;
Fig. 4 is the part top view of a kind of variant of Fig. 1 rubber pressing gun;
Fig. 5 is the part top view of the another kind of variant of Fig. 1 rubber pressing gun;
Fig. 6 is the part top view of another variant of Fig. 1 rubber pressing gun;
Fig. 7 is the part top view of another variant of Fig. 1 rubber pressing gun;
Fig. 8 is the part top view of also a kind of variant under first serviceability of Fig. 1 rubber pressing gun;
Fig. 9 is the part top view under second serviceability of Fig. 8 rubber pressing gun;
Figure 10 is the part top view of the variant of Fig. 8 rubber pressing gun.
Referring to Fig. 1-3, rubber pressing gun or squeezer 10 have a framework 12 to be used to load disposable sebific duct 14, and for simplicity, the sebific duct that has inside diameter D and length L in Fig. 1 usually is by label 14 expressions; The one piston push strut 16 that can move along the framework axis; This push strut is pulled spanner mechanism 18 back and forth and is pushed ahead; This spanner mechanism includes the spanner 20 and the pushing fixture block 22 that is enclosed within on the push strut 16 of anchor shaft; Pushing fixture block 22 is subjected to spanner 20 and spiral fashion pushing spring 24 effects that are enclosed within on the push strut 16.Shown in Fig. 1 solid line, by under the situation about loosening, framework 12 has been pushed up in the upper end of pushing fixture block 22 at spanner 20, makes the pushing fixture block unclamp from tight card state shown in dotted lines in Figure 1.Be enclosed within second fixture block of non-return piece spring 28 effects that are subjected to departing from push strut on the push strut 16 or claim non-return fixture block 26 by first contact surface or claim first stop surface 30 to block, thereby played the effect that stops push strut 16 to be moved backward.
In the pusher shown in Fig. 1-3, first stop surface 30 is positioned at fixing (as welding) on the bearing support on the framework 12 32.
According to the present invention, under the effect of the non-return fixture block spring 28 that is contained in piston push strut 16 next doors (below), non-return fixture block 26 is stuck on the piston push strut always; When spanner mechanism 18 driven plunger push strut, can make the non-return fixture block move forward one apart from E from first stop surface 30 with the motion of push strut.Like this, along with loosening of spanner mechanism 18, the piston push strut moves under the combined action of non-return fixture block 26 and non-return piece spring 28 backward, till non-return fixture block 26 is run into first stop surface 30.Equal non-return fixture block 26 from contacting the distance that first stop surface 30 moves forward the control surface 34 of running into a position changeableization apart from E.Like this, after the stroke that spanner mechanism 18 advances piston push strut 16 earlier was not less than apart from E, along with loosening of spanner mechanism, push strut 16 rollbacks were apart from E, so that controlledly discharge the internal pressure of sebific duct 14, there is not too much glue laminated to go out the purpose of (oozing) thereby reach.
As Figure 1-3, the cam gear 36 of a rotatable adjusting is contained on the support 32 to regulate E to required distance.In addition, locking component 38 that is fixed on the framework 12 has among Fig. 1 locking second state shown in the solid line in non-locking first state shown in the solid line and Fig. 2.Under second state, locking component 38 withstands on 40 li of the indentures that non-return card 26 ends.One end of locking component 38 has a handle to stretch on one side of non-return stops 26 in order to manual switch between first and second states easily.Under locking second state, locking component will have enough elastic force to withstand non-return fixture block 26 it is leaned against on first stop surface 30; So just, avoided the recoil of non-return fixture block 26, accomplished that promptly desired is zero apart from E; Need repeatedly pull the situation that spanner 20 do not stop to push the sebific duct 14 that viscous medium is housed is the example that this state is suitable for.Locking component 38 makes non-return fixture block 26 relative frameworks 12 not recoil, thereby can little by little pull wrench 20 to reach the amount of controlling the medium that squeezes out well from squeezer 10.
In addition, this makes also that when needing the medium of very big pressure extrusion thickness spanner 20 can be pulled with propelling piston push strut 16 fast back and forth by part or total travel ground.
When using squeezer 10, locking structure machine 38 generally is placed on locking second state earlier and carries out smooth continuously moulding operation so that pull spanner mechanism 18 continuously.When the intact glue of fast pressure, lockout mechanism 38 preferably is placed on non-locking first state, and along with spanner mechanism 18 is released, piston push strut 16 is miles of relative movement E backward like this, thereby has discharged pressure in the sebific duct to reach the purpose that does not have excessive medium to extrude.
Express as Fig. 2 and Fig. 3, comprise that the adjustable cam device that a cam bit 44 is fixed on the cam handle 46 rotatably is contained on the support 32.For adjustable range E, on the edge 48 of cam bit 44, be processed with a series of planes around 46 one-tenth radiation-like arrangements of cam handle.Cam gear 36 comprises a spring shim 50 and a set collar 52, and making has enough friction force to keep the orientation of cam bit 44 relative supports 32; There is a knob 54 upper end of cam handle 46 so that revolve the orientation of deciding cam.Just formed control surface 34 towards the plane of non-return fixture block 26 in a series of planes on cam bit edge 48.As shown in Figure 2, when locking component 38 was in locking second state, control surface 34 moved on to the contact surface of locking component 38 and indenture 40.It is the opening 56 of F that one length is arranged on support 32, and the rear end of this opening is first stop surface 30; Its length F should be not less than 48 ultimate range E that can set of cam edge.
Setting apart from the E size should make when spanner mechanism 18 loosens, the piston push strut 16 mobile pressure that can discharge sebific duct 14 the insides backward.Being considered to apart from E approximately is 5% o'clock of sebific duct diameter D, can discharge the pressure of sebific duct effectively.For example, the diameter D of the sebific duct of a standard approximately is 50.8 millimeters (2 inches), and length L approximately is 203.3 millimeters (8 inches).
Like this, approximately be 5% of sebific duct diameter D apart from E, promptly 2.54 millimeters (0.1 inch).This distance is considered to be enough to discharge the internal pressure with general viscosity sebific duct 14.When locking component 38 is placed on non-locking first state, apart from the scope of E preferably diameter D about about 2.5% to 10%.With regard to the above-mentioned example, be about about 1.27 millimeters (0.05 inches) to 5.08 millimeters (0.2 inches).During to the big pressure extrusion high viscosity of needs medium, preferably can be apart from E greatly to approximately being 15% of diameter D, with regard to last example, about just 7.62 millimeters (0.3 inches).
As shown in Figure 4, the present invention can be used for the rubber pressing gun of different structure, the squeezer 10 among Fig. 4 ' have a preesure-poured framework 12 '; Leader 13 is arranged on the framework; Spanner structure 18 ' comprise fixing handgrip 13 ' and a preesure-poured spanner 20 '.And in Fig. 1-3, these are to be stamped to form with iron sheet.This squeezer 10 ' also have one be contained in the die casting handgrip piston push strut 16 that can slide along axis ', a pushing fixture block 22 ', a pushing spring 24 ', a non-return fixture block 26 ', a non-return piece spring 28 ' and locking component 38 '.Here the member correspondence that has the label of single apostrophe 10 li similar components that have same numeral of squeezer among Fig. 1-3.The device that squeezer 10 ' do not have and cam gear 36 are similar.So, when locking component 38 ' when being positioned at first unlock state, non-adjustable control surface 34 is fixed on the die cast component 13.
Shown in Figure 5 is the squeezer of another variant, and label is 10 ".This squeezer has a corresponding L shaped non-return fixture block 26 ".Corresponding first stop surface that the non-return stops stretches into corresponding framework 12 " in, label is 30 " is positioned at the inwall of framework.When locking component 38 during at non-locking first state, control surface 34 is positioned at framework 12 and " goes up and first stop surface 30 " corresponding outer wall.Like this, the support 32 among Fig. 1-3 can be considered to combine with framework 12.
What Fig. 6 represented is the another application of the present invention on a kind of rubber drop-free rubber pressing gun.This rubber pressing gun is with elastomeric non-return fixture block.As shown in Figure 6, squeezer 10 have a framework 12 and and Fig. 4 in the same piston push strut 16 ' with spanner mechanism 18 '; Also comprise a non-return fixture block 60.This non-return fixture block is clipped between the dop 62 and top rib 64 on framework 12 , and can be around being swung by Ka Chu.Have one on the non-return fixture block 60 and load piece 66, rubber zero a shape ring that is enclosed within on the push strut is equipped with in the inside.Because rubber zero shape ring and piston push strut 16 ' between friction force, non-return fixture block 60 can with piston push strut 16 ' motion together.Like this, when spanner mechanism 18 ' propelling piston push strut, non-return fixture block 60 breaks away from non-return engaging attitude and pushes away push strut with piston mobile, run into stopping till protruding 70 on framework 12 up to non-return fixture block 60, in the process of piston push strut 16 ' propelling, because the effect of the friction force between piston push strut and the zero shape rubber ring, non-return fixture block 60 leans against always and stops on protruding 70.Like this, when stopping to pull and loosen 18 ' time of spanner mechanism because the continuous action of zero shape rubber ring friction force, non-return fixture block 60 piston push strut 16 ' drive under put back backward, up to seized piston push strut 16 again ' till, thereby stoped the piston push strut further to be drawn back.Above-mentioned squeezer 10 have been disclosed in the 1st, 013, No. 241 registered design registrations of Britain, be called the WEXFORD2 automatic pressure and discharge rubber pressing gun on English market.According to the present invention a, member 38 similar with locking component 38 " axle be contained on framework 12 , and can and lock between second attitude in non-locking first attitude and change.Locking component 38 " withstands non-return fixture block 60 on push strut and dop 62 opposite one side, makes in that piston push strut 16 ' the non-return fixture block still maintains the engaging attitude when pushing ahead when lock-in state.Locking component 38 " is used the material of good springiness, is made that non-return fixture block 60 can be pressed release engaging attitude with hand when locking; For example, when changing sebific duct 14, just need so.So locking component 38 " must have enough intensity to overcome the friction force of zero shape ring, need have flexible preferably simultaneously again so that locking component 38 " can not produce deformation set when discharging non-return fixture block 60 pressing with hand.In sum, use squeezer 10 of the present invention and " when second lock-in state, can provide the moulding operation of continuous smoothness at locking component 38; And locking component 38 " when the first non-locking attitude, after extruding stopped, piston push strut 16 ' meeting was moved backward with hold-off pressure.
Shown in Figure 7 is the squeezer of another variant, with label 10 " " expression.This squeezer comprises corresponding framework 12, and piston push strut 16 has the spanner 20 of anchor shaft, pushing fixture block 22 and pushing spring 24, and a corresponding non-return fixture block, and label is 26 .The non-return fixture block is being fixed by support a 32 ' dead axle that is positioned at piston push strut 16 tops.One corresponding non-return piece spring 28 " is enclosed within on the piston push strut 16 between framework 12 and non-return fixture block 26 .
According to the present invention, one and locking component 38 corresponding parts, be designated as locking component 38 , its axle is fixed on the framework 12.Locking component 38 are used for entangling non-return fixture block 26 , make the engaging of its disengaging and piston push strut 16.One elastic collar is clipped between framework 12 and the pushing spring 24, and frictionally and piston push strut 16 combine.Shown in solid line among Fig. 7, when locking component 38 are in non-fit attitude, non-return piece spring 28 " withstands non-return fixture block 26 and makes itself and 16 engagings of piston push strut.When locking component 38 are in the fit attitude, non-return fixture block 26 swing forward and and piston push strut 16 break away from engaging, thereby get back to home position cun piston push strut 16 ' can be mobile backward when spanner 20 owing to backward pressure in the sebific duct 14.
Locking component 38 are arranged in the fit attitude and are equivalent to Fig. 1-3 locking component 38 and are positioned at first state, and locking component 38 are positioned at non-fit attitude and then are equivalent to locking component 38 and are positioned at second state.
The size that piston push strut 16 moves required pressure backward depends on the combination between elastic collar 72 and the piston push strut 16.Like this, when first attitude, control surface 34 is positioned on locking component 38 ; And when second attitude, 34 inwalls that are positioned at the collar 72 of control surface.
Fig. 8 and shown in Figure 9 be the squeezer of another kind of variant, be designated as squeezer 10 ~.This squeezer comprise corresponding framework 12 ~, piston push strut 16 ', non-return fixture block 26 ~.Also comprise do not show in the drawings corresponding to following position: the spanner 20 of anchor shaft is arranged, pushing fixture block 22 ' and pushing spring 24.In the structure of Fig. 8 and Fig. 9, the push strut 16 of pushing block 22 ' relatively ' turn to, spanner 20 extend to push strut 16 ' on, pushing spring 24 also be positioned at push strut 16 ' the top.According to this variant of the present invention, non-return fixture block 26 ~ fixing by conversion connecting strap 78 dead axles that are positioned at piston push strut 16 tops.Conversion connecting strap 78 is by conversion excellent 80 and framework 12 ~ connect together.There is a link slot 82 conversion connecting strap 78 two sides; There is a pair of " U " shape conversion groove 84 framework 12 ~ both sides.Conversion rod 80 passes from link slot 82 and conversion groove 84; There are two nuts 86 at the two ends of conversion rod 80, keep the conversion rod can not drop out.Simultaneously, these two nuts make conversion rod 80 easily to move between " U " shape conversion groove 84 two ends with hand.Fig. 8 is the situation when conversion rod 80 is pushed to the front end of conversion groove 84; The squeezer 10 of this moment ~ be the rubber drop-free state.Situation when Fig. 9 then is moved toward the rear end of changing groove 84 for conversion rod 80; This moment, the non-return fixture block 26 can not move backward, and what this discussed just as the front is zero apart from E.One and non-return piece spring 28 corresponding springs, be designated as 28 ~, be to be fixed on the conversion connecting strap 78 by a rivet 88.Spring 28 ~ act on backward non-return fixture block 26 ~ the below, the front portion that upwards acts on conversion connecting strap 78 simultaneously upwards acts on the conversion rod 80 it.In the situation when conversion rod 80 shown in Figure 8 is pushed to the front end of conversion groove 84, when piston push strut 16 was pushed ahead, conversion connecting strap 78 moved forward thereupon, till conversion rod 80 is run in the rear end of link slot 82.The base of link slot is not that on even keel contacts with conversion groove 80, but becomes a little oblique angle φ.Because conversion rod 80 is subjected to the application force from spring 28 ~ make progress, and makes that conversion rod 80 can only be in the conversion of the two ends of conversion groove 84.These make the base of link slot 82 and change between the rod 80 and have friction force.Like this, when spanner 20 is released go back to its initial position, one section distance that is less than or equal to E is moved in push strut 16 ' meeting backward according to the internal pressure of sebific duct 14, make piston push strut 16 ' backward move needed power and depend on the size of angle φ and make conversion connecting strap 78 be pressed in the size of the elastic force on the conversion rod 80, angle φ has the effect that part stops the conversion connecting strap 78 that is subjected to check spring 28 ~ effect to move backward when not having sebific duct pressure.This angle φ can be greatly to 15 ° of motions backward when almost completely stoping this no sebific duct pressure; Squeezer 10 ~ in, this angle fixes on about 13.5 °.Owing to very near 15 ° the time, can produce very big friction drag as angle φ, so this angle is proper between about 13 ° to 14 °, thereby make piston push strut 16 ' when sebific duct 14 has internal pressure, just can move backward.Angle φ discussed above is meant the preceding elevation angle of conversion connecting strap 78.It should be noted that actual angle can reduce a bit a little with moving backward of conversion connecting strap 78; In the structure of Fig. 8 and Fig. 9, this angle is reduced to about 12.5 ° from about 13.5 °.
As shown in Figure 9, corresponding first stop surface 30 be positioned at framework 12 ~ on so that can prevent that with conversion connecting strap 78 conversion rod 80 is converted connecting strap and slides and change after contact.Conversion rod 80 has then played the effect of control surface 34.
Shown in Figure 10 is aforementioned squeezer 10 ~ variant, be designated as 10^.This squeezer has one and framework 12 ~ corresponding parts, and label is 12^; Have one and piston push strut 16 corresponding dentation piston push strut, be designated as 16^.This dentation push strut 16^ is pushed into the ratchet mode.
One label is that the corresponding spanner mechanism of 18^ comprises spanner 20; One is subjected to that spring presses, axle is fixed on pushing pawl 90 on the spanner.Like this, the pushing pawl is engaged on the tooth of dentation push strut 16^.The space of tooth of the tooth on the dentation push strut is ε.According to this variant of the present invention, have one and the intimate non-return rest shoe of non-return fixture block 26^; The axle of this non-return rest shoe one end is contained among the axial trough 82^ similar with link slot of a pair of function on the framework.The axle of non-return rest shoe 26^ can move in axial trough, thereby framework 12^ has two positions at least relatively.One with non-return piece spring 28～cooresponding non-return rest shoe 28^ one end be enclosed within change rod 80 identical conversion rods on, thereby framework 12^ is shifted relatively.Conversion rod 80 passes a pair of similar conversion groove 84^ on framework 12^, and the two ends of conversion rod have two nuts 86 equally.As shown in figure 10, conversion groove 84^ is the groove of a pair of horizontal direction.When conversion rod 80 was changed between the opposite end points of conversion groove, spring 28^ bullet was crossed center-point.Spring 28^ also acts on non-return rest shoe 26^ simultaneously upward so that itself and the engagement of dentation push strut.Shown in solid line among Figure 10, when conversion rod 80 was pushed to the front end of conversion groove 84^, non-return rest shoe 26^ was withstood on the rear end of axial trough 82^.Like this, the aft end face of axial trough 82^ just is equivalent to the function of stop surface 30, and non-return rest shoe spring 28^ the face on the non-return rest shoe 26^ of acting on then plays the effect of control surface 34.Thereby when conversion rod 80 was positioned at the front end of conversion groove 84^, squeezer 10^ was the common standard state; When spanner mechanism was discharged into previous status, under the effect of downstream pressure, the distance of dentation piston push strut 16^ travelling backwards can only be between zero-sum ε.
Shown in Figure 10 long and short dash line, when conversion rod 80 be pulled to conversion groove 84 ' the rear end time because the effect of spring, non-return rest shoe 26^ is pulled to the front end of axial trough 82^.Like this, the front end of axial trough 82^ has played the effect of control surface 34.So when conversion rod 80 was positioned at the rear end of conversion groove 84^, squeezer l0^ was the rubber drop-free state; This moment, dentation piston push strut 16^ was allowed to move one backward apart from F except recoil possible under the common standard state.As shown in figure 10, this apart from F greater than space of tooth ε.The typical sizes of space of tooth ε approximately is 4.06 millimeters (0.16 inches), and suitably front and back change axial trough 82^ rear end can change the size of recoil distance with respect to the position of the 18^ of spanner mechanism.
Though described main variant of the present invention above quite particularly, under core that does not exceed appended claim and scope, may also have other variant and remodeling.For example, hexagonal piston push strut 16 ' can be the circle of the push strut 16 in Fig. 1 in Fig. 8 and Fig. 9.The same dentation push strut and ratchet spanners mechanism replace piston push strut and the spanner mechanism among Fig. 8 among available Figure 10, but scope of the present invention is not subjected to the restriction of these specific embodiments and remodeling thereof, variant, and should be limited by appended claim.
Claims (14)
1, a kind of rubber pressing gun is characterized in that, this rubber pressing gun comprises:
(a) framework that is used to load the moulding material;
(b) piston push strut that can move along this framework axis is used for forward the moulding material being extruded from rifle going;
(c) one is contained in the spanner mechanism that can pull on this framework, is used for meshing and pushing ahead when pulling this spanner mechanism this piston push strut, and this spanner mechanism has a position of loosening to move backward to allow this piston push strut;
(d) a packaged clutch fixture block that on framework, can move and have two orientations, first orientation is used to be stuck in makes its relative clutch fixture block can not move backward forward on the piston push strut, and second orientation allows the relative clutch fixture block of piston push strut to move freely along axle;
(e) one makes this clutch fixture block become first orientation to be stuck in the device on this piston push strut;
(f) relative framework and the first fixing contact surface move when described first orientation backward to stop this clutch fixture block;
(g) relative framework control surface movably, to stop the clutch fixture block when first is orientated, to move forward, simultaneously this control surface apart from first contact surface enough distances are arranged in case the clutch fixture block first orientation and and situation that this control surface contact under when spanner mechanism discharged playback pine state, allow piston push strut mobile one distance (E) of being scheduled to backward selectively.
2, rubber pressing gun according to claim 1, it is characterized in that, this rubber pressing gun also comprises a locking component with first unlock state and second lock-out state, makes that control surface limits mobile backward distance less than described predetermined distance (E) when lock-in state.
3, rubber pressing gun according to claim 2 is characterized in that, described control surface relative framework when locking component is in non-locking attitude is located.
4, rubber pressing gun according to claim 2 is characterized in that, the distance that moves backward during in lock-in state when locking component is less than 10 of the distance that moves backward under non-locking attitude.
5, rubber pressing gun according to claim 2 is characterized in that, is under the lock-in state when discharging spanner mechanism playback pine state at locking component, can stop the piston push strut to move backward effectively.
6, rubber pressing gun according to claim 2 is characterized in that, described preset distance (E) is at least 2.54 millimeters.
7, rubber pressing gun according to claim 1 is characterized in that, makes the clutch fixture block become the device of first orientation to comprise a non-return piece spring that is compressed between framework and the clutch fixture block, is positioned at piston push strut one side opposite with limit, the first contact surface place.
8, rubber pressing gun according to claim 1 is characterized in that, this rubber pressing gun also comprises:
One under control surface allows situation that the piston push strut can move backward, make the piston push strut be subjected to making mobile backward device of time spent when spanner mechanism is released the inner existing pressure of playback pine attitude moulding material.
9, rubber pressing gun according to claim 8, it is characterized in that, this rubber pressing gun also comprises: a conversion connecting strap that is contained in movably between clutch fixture block and the framework, make when control surface provides space that the clutch fixture block moves forward with forward the motion of corresponding piston push strut, the clutch fixture block under first state can with piston push strut mobile one distance that is described preset distance (E) to the maximum together; A friction engagement conversion connecting strap, so that the device that the piston push strut needs a power that preestablishes size to move backward, and a device that allows the piston push strut to move backward.
10, rubber pressing gun according to claim 9, it is characterized in that, this rubber pressing gun comprises that is also played a control surface effect conversion rod, this conversion rod passes a pair of conversion groove on a pair of link slot and the framework from the conversion connecting strap, thereby will change connecting strap and framework dynamically connects together, and can between the two-end-point of conversion groove, be changed selectively.
11, rubber pressing gun according to claim 10, it is characterized in that, with the device of clutch fixture block jack-up and friction engagement conversion connecting strap comprise one be fixed on the conversion connecting strap, an end acts on the clutch fixture block, the other end then acts on the tension spring that conversion connecting strap and conversion rod are frictionally meshed together.
12, rubber pressing gun according to claim 8 is characterized in that, described spanner mechanism comprises first ratchet and second ratchet that is engaged on the tooth piston push strut; First ratchet is contained on the spanner with pushing dentation piston push strut, and the axle of second ratchet is contained on the framework and two positions can be arranged; First position makes when spanner mechanism is released dentation piston push strut move backward to be no more than on the dentation push strut and the interdental space of the second ratchet engagement place, and second position makes the mobile backward distance of when spanner mechanism is released piston push strut greater than the interdental space on the piston push strut.
13, rubber pressing gun according to claim 12 is characterized in that, the axle of described second ratchet is contained in the substantially parallel axial trough of a pair of and piston push strut on the framework; The primary importance of second ratchet and the second place lay respectively at the two ends of axial trough.
14, rubber pressing gun according to claim 13 is characterized in that, this rubber pressing gun comprises that also one is passed on the framework a pair of conversion groove and conversion rod movably, and is compressed in and " crosses the " center " spring between the conversion rod and second ratchet.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US439706 | 1989-11-21 | ||
| US08/439,706 US5615807A (en) | 1994-10-12 | 1995-05-12 | Convertible dripless caulking gun for variant viscosity media |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1143039A CN1143039A (en) | 1997-02-19 |
| CN1065198C true CN1065198C (en) | 2001-05-02 |
Family
ID=23745812
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN95116156A Expired - Fee Related CN1065198C (en) | 1995-05-12 | 1995-10-12 | Changeble drop-free rubber pressing gun suitable for various viscosity rubber pipe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1065198C (en) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100490991C (en) * | 2004-04-08 | 2009-05-27 | 雷技术集团公司 | Cartridge pistol with a cartridge holder |
| CN103084310B (en) * | 2013-02-03 | 2015-08-12 | 天津市金锚集团有限责任公司 | Glue spraying gun feed mechanism assembly and handle thereof |
| CN103084309B (en) * | 2013-02-03 | 2015-05-13 | 天津市金锚集团有限责任公司 | Feed mechanism assembly of glue squeezing gun |
| CN105557961A (en) * | 2016-02-03 | 2016-05-11 | 德清张工五金有限公司 | Hydrocolloid gun for sausage making |
| CN110369235B (en) * | 2019-08-12 | 2024-06-04 | 天津市金锚集团有限责任公司 | Glue gun handle with drip-proof and leakage-proof conversion function and glue gun |
| CN110369234B (en) * | 2019-08-12 | 2024-06-25 | 天津市金锚集团有限责任公司 | Glue saving mechanism, glue gun handle and glue gun |
| CN110665766A (en) * | 2019-11-20 | 2020-01-10 | 帕尼多（徐州）信息科技有限公司 | Quick-drying glue gun for gap filler |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5248068A (en) * | 1991-10-21 | 1993-09-28 | Snap-On Tools Corporation | Caulk gun with ergonomic handles |
| US5390831A (en) * | 1993-12-06 | 1995-02-21 | Albion Engineering Company | Dispensing devices for high viscosity compositions |
-
1995
- 1995-10-12 CN CN95116156A patent/CN1065198C/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5248068A (en) * | 1991-10-21 | 1993-09-28 | Snap-On Tools Corporation | Caulk gun with ergonomic handles |
| US5390831A (en) * | 1993-12-06 | 1995-02-21 | Albion Engineering Company | Dispensing devices for high viscosity compositions |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1143039A (en) | 1997-02-19 |
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