CN117443678A - Single-driven double-component quantifying machine - Google Patents

Abstract

The invention relates to the technical field of gluing equipment, and particularly discloses a single-driven double-component quantifying machine which comprises a metering assembly and a glue gun assembly, wherein the metering assembly comprises a cylinder body, a driving mechanism and a transmission mechanism, the cylinder body comprises two quantifying cavities, the transmission mechanism comprises an output block, two plunger rods fixed on the output block and a fixedly-installed supporting seat, the driving mechanism is used for driving the output block to reciprocate, the plunger rods penetrate through the supporting seat and are inserted into corresponding quantifying cavities, a sealing assembly is sleeved on each plunger rod, the sealing assembly is positioned at one end, close to the output block, of the quantifying cavity, the sealing assembly comprises a sealing ring and a guide ring, the two axial sides of the guide ring are respectively provided with the sealing ring, and the guide ring is in clearance fit with the plunger rods. The scheme is used for solving the problems that the actual mixing ratio caused by the fact that the two components of the existing double-component quantifying machine cannot be completely synchronous deviates from the design, and the independent driving has the defects of multiple overhaul times and long debugging time.

Description

Single-driven double-component quantifying machine

Technical Field

The invention relates to the technical field of gluing equipment, in particular to a single-drive double-component quantifying machine.

Background

The double-component quantifying machine comprises two quantifying cylinders and a glue gun assembly, wherein each quantifying cylinder is provided with a driving mechanism, a transmission mechanism and a cylinder body, the driving mechanism outputs power to transmit the power to a plunger rod through the transmission assembly, the plunger rod acts in a quantifying cavity of the cylinder body, the reciprocating movement of the plunger rod enables the volume of the quantifying cavity to change, the quantifying cylinders discharge/fill the glue in the process of changing the volume of the quantifying cavity, the two quantifying cylinders pump the two components onto the glue gun assembly under the working, and then the glue gun assembly mixes and extrudes the components pumped by the quantifying cylinders.

The two quantitative cylinders of the two-component quantitative machine are all independently driven quantitative cylinders in the current market, namely, each quantitative cylinder is driven by independent connection, when any quantitative cylinder of the current quantitative machine has a problem, the whole two-component quantitative machine needs to be shut down, after the maintenance of the problematic quantitative cylinder is completed, the matching condition of plunger rods on the two quantitative cylinders is also required to be adjusted according to the requirement that the quantitative cylinders synchronously extrude different components until the two quantitative cylinders synchronously operate, but because the two quantitative cylinders are driven by the independent driving of each quantitative cylinder, each driving has more or less problems after long-time work, the maintenance times are more, and meanwhile, the matching condition of the two quantitative cylinders needs to be adjusted after each maintenance, so that the debugging time is long, and the production efficiency of the two-component quantitative machine is greatly influenced.

In addition, each quantitative cylinder is driven independently and generally comprises a driving motor, a speed reducer and a ball screw structure with a transmission function, wherein the driving motor drives the speed reducer to start, the output end of the speed reducer is used for driving the ball screw to move, and finally, the plunger rod arranged on the ball screw sliding block is driven to reciprocate; in such driving, the reduction ratio of the speed reducer and the lead of the ball screw are constant values, but different motors may have different actual rotation speeds, so that at a mixing ratio of 1:1, two dosing cylinders which should be completely synchronized cannot be ensured to be completely synchronized, and the actual mixing ratio is affected.

In addition, in the prior art, the directions of the reciprocating movement of the plunger rods on the two dosing cylinders may not be identical, for example, one dosing cylinder is reversing and the other dosing cylinder is not reversing, so that the discharge amount is also different at the same time, especially for high-viscosity colloid (such as heat-conducting colloid on a battery on a new energy automobile, not only has high viscosity but also has metal particles), under the condition that the directions are different, the actual mixing ratio deviates from the designed mixing ratio at the moment; when the failure of one of the quantitative cylinders is not detected in time, abnormal discharging of the failed quantitative cylinder is caused, and the actual mixing ratio deviates from the designed mixing ratio.

Disclosure of Invention

The invention aims to provide a single-drive double-component quantifying machine, which solves the problems that the actual mixing ratio is deviated from design and the single drive has a plurality of overhauling times and long debugging time caused by the fact that the two components of the existing double-component quantifying machine cannot be completely synchronous.

In order to achieve the above purpose, the invention adopts the following technical scheme:

the utility model provides a single driven two ingredient ration machines, includes metering assembly and gluey rifle subassembly, metering assembly includes the cylinder body, actuating mechanism and drive mechanism, the cylinder body includes two ration chambeies, drive mechanism includes the output piece and fixes two plunger rods on the output piece, actuating mechanism is used for driving output piece reciprocating motion, all the cover has seal assembly on every plunger rod, seal assembly installs the one end that is close to the output piece in the ration chamber, seal assembly includes sealing washer and guide ring, the axial both sides of guide ring all have the sealing washer, guide ring and plunger rod clearance fit.

The principle and the advantages of the scheme are as follows: when the scheme is adopted, when the quantitative machine works, the driving mechanism drives the output block of the transmission mechanism to reciprocate, the reciprocating motion of the output block drives the two plunger rods to reciprocate synchronously, the two plunger rods respectively suck two glue components outside the cylinder body into the two quantitative cavities respectively and discharge the two glue components to the glue gun assembly simultaneously in the process of reciprocating motion of the two quantitative cavities, and the glue gun assembly is used for extruding the mixed two components to realize the glue beating/dispensing of the two-component glue.

In the process, each plunger rod can be used as the plunger rod of the corresponding dosing cavity, so that the filling and discharging of the cylinder body on the dosing machine are realized, the two-rod output under a single driver is realized through the invention, and the two dosing cavities can keep synchronous movement under the condition that the plunger rods share the driving mechanism and the output block. Compared with the prior art, the number of the driving mechanisms is relatively reduced by one set, so that the times that the driving mechanisms need to be overhauled due to the fact that the driving mechanisms are used for a long time are reduced, and meanwhile, the synchronous movement of the two plunger rods can be ensured after the driving mechanisms are shared, so that the condition of integral coordination and matching of the driving mechanisms corresponding to the two quantitative cavities for realizing the synchronization of the two quantitative cylinders does not exist, and the debugging time is greatly shortened. The invention solves the problem of different mixing ratios caused by different moving directions of the plunger rods on the two quantitative cylinders in the prior art because one driving mechanism drives the two plunger rods to move completely and synchronously, and also solves the problems of abnormal discharging and unreachable actual mixing ratio caused by failure of timely detection of any quantitative cylinder in the prior art, and is especially suitable for quantitative conveying of high-viscosity double-component colloid with the existing mixing ratio of 1:1. And aiming at the situation that the mixing ratio is not 1:1, under the condition that the driving mechanism and the transmission mechanism meet the bearing capacity, the cross section area of one component plunger rod and the quantitative cavity can be changed to keep the mixing ratio of the plunger rod and the quantitative cavity consistent with that of the glue, so that the completely synchronous discharging/filling of the double-component glue with the mixing ratio of not 1:1 is ensured.

In addition, the plunger rods of the two quantifying chambers share one driving mechanism, so that the number of the driving mechanisms is reduced by one set compared with the prior art, the cost is reduced, the volume and the weight of the whole double-component quantifying machine are reduced, the requirement on the manipulator is met when the double-component quantifying machine is mounted on the manipulator, and meanwhile, the operation range of the gluing equipment can be improved after the size and the weight of the double-component quantifying machine are reduced.

In addition, the sealing component sleeved on the plunger rod can not only have more than one sealing function on the axial direction of the plunger rod, but also lead the plunger rod to be guided by the guide ring in the reciprocating movement process, ensure the reciprocating movement stability of the plunger rod, and be beneficial to improving the sealing performance on the basis of improving the reciprocating movement stability, thereby prolonging the service lives of the sealing component and the plunger rod.

Preferably, as an improvement, fixedly connected with mounting structure on the output piece, mounting structure is including detachable clamp plate and the mount pad of connection, is equipped with two at least mounting holes on the mount pad, all can insert the plunger rod on every mounting hole, has the bulge on the plunger rod, and the bulge can be pressed from both sides tightly by clamp plate and mount pad.

The beneficial effects are that: in this scheme, through the setting of the mounting structure of taking clamp plate, mount pad for when the installation plunger rod, only need insert the mount pad with the plunger rod on, the bulge in the plunger rod can be pressed from both sides tightly by clamp plate and mount pad simultaneously, just can realize the installation of plunger rod, ensures the simple and convenient of plunger rod dismouting. And the setting of clamp plate and mount pad for the plunger rod need not to punch, ensures that the intensity of plunger rod is not influenced.

Preferably, as a modification, the transmission mechanism further comprises a fixedly mounted support seat, the plunger rod passing through the support seat and being inserted into the corresponding dosing chamber, a portion of the sealing assembly being inserted onto the support seat, the remainder of the sealing assembly being inserted into the cylinder.

The beneficial effects are that: this scheme is through setting up seal assembly between cylinder body and supporting seat for seal assembly can play the sealed and guide effect to the plunger rod, can also play the positioning effect when supporting seat and cylinder body are connected.

Preferably, as an improvement, the supporting seat comprises a first end seat and a second end seat which are detachably connected, a protective cover is arranged between the first end seat and the second end seat, the protective cover is used for sleeving the plunger rod and the output block, the driving mechanism is fixed on the first end seat, and the second end seat is detachably connected with the cylinder body.

The beneficial effects are that: when the scheme is adopted, the design of the supporting seat is adopted, so that the transmission mechanism is very simple and convenient when facing different disassembly and assembly demands, if the transmission mechanism with the sealing component is required to be installed on the cylinder body, the sealing component is sleeved on the transmission mechanism, and then the quick installation of the transmission mechanism and the cylinder body can be realized by means of the positioning of the sealing component on the cylinder body.

When the individual parts of the transmission mechanism such as the output block and the plunger rod are in a problem, the connection relation between the first end seat and the second end seat is released, so that the plunger rod and the output block can be conveniently overhauled, and the cylinder body, the second end seat and the sealing assembly are not influenced in the disassembly and assembly process. In addition, the protection cover protects the plunger rod and the output block.

Preferably, as an improvement, the sealing assembly further comprises a sealing sleeve, the sealing sleeve is in clearance fit with the plunger rod, the sealing ring and the guide ring are installed in the sealing sleeve, the sealing sleeve comprises an upper sealing sleeve and a lower sealing sleeve which are detachably connected, one of the upper sealing sleeve and the lower sealing sleeve is provided with a positioning groove, and the other sealing sleeve is provided with a positioning column which is in concave-convex fit with the positioning groove.

The beneficial effects are that: when the scheme is adopted, through the arrangement of the upper sealing sleeve and the lower sealing sleeve, the disassembly and assembly of the sealing ring and the guide ring which are arranged in the sealing sleeve are simpler and faster, and the positioning groove and the positioning column are arranged, so that the sealing sleeve can ensure the coaxiality of the upper sealing sleeve and the lower sealing sleeve even if being divided into two parts, and the problem that the sealing ring/the guide ring is in uneven contact with the plunger rod and has large abrasion at the local position after one sealing sleeve is inclined relative to the other sealing sleeve is avoided.

Preferably, as an improvement, a guide rod is fixed on the supporting seat, the guide rod is parallel to the plunger rod, and the output block is connected on the guide rod in a sliding way.

The beneficial effects are that: when adopting this scheme, because the dual component ration machine is very high in the in-service use, and the fluid of ration intracavity effect is viscosity high, have metal particle's glue, in case glue enters into between seal assembly and the plunger rod, then seal assembly will wear out very easily, this scheme passes through the setting of guide arm for the plunger rod is when following output piece synchronous movement, the existing guide arm is leading in the one end of plunger rod, and the guide ring on the seal assembly leads again, greatly improved plunger rod, seal assembly, the axiality at ration chamber center, ensure plunger rod reciprocating movement's stability and with seal assembly interact's homogeneity, be favorable to improving sealed effect, seal assembly's life is prolonged.

Preferably, as a modification, the number of the guide rings is at least two, and the guide rings and the sealing rings are alternately arranged along the axial direction.

The beneficial effects are that: when adopting this scheme for whole seal assembly forms the structure of soft (sealing washer) -hard (guiding ring) -soft (sealing washer) along the axial, both makes seal assembly have good sealed effect and guide performance, again because be tight fit between guiding ring and the seal cover, can ensure to hold the axial space of sealing washer and can not change, and then ensure that the deformation that produces after the sealing washer is installed has axial space to hold, ensures that sealed effect is unaffected.

Preferably, as an improvement, the length of the upper sealing sleeve is smaller than that of the lower sealing sleeve, the guide rings are all positioned in the lower sealing sleeve, one part of the lower sealing sleeve is positioned in the supporting seat, and the other part of the lower sealing sleeve is positioned in the cylinder body.

The beneficial effects are that: when adopting this scheme, through the length setting to upper and lower seal cover for the long lower seal cover of length strides across supporting seat and cylinder body, has ensured seal assembly to whole atress and has installed between supporting seat and cylinder body, and the guide ring all is located down the seal cover simultaneously, and down the seal cover is close to the ration chamber, ensures that reciprocating motion to the plunger rod is more stable.

Preferably, as an improvement, the upper sealing sleeve is provided with an oil filling hole penetrating through the wall thickness of the upper sealing sleeve, one end of the upper sealing sleeve, which is close to the lower sealing sleeve, is provided with a guide ring, and the support seat is provided with an oil inlet channel communicated with the oil filling hole.

The beneficial effects are that: when adopting this scheme, through the setting of oil filler point and oil feed passageway, conveniently follow the oil feed passageway of supporting seat on to the oil filler point injection lubricating oil, realize the lubrication to the plunger rod, because go up seal cover and plunger rod clearance fit, so the lubricating oil that follow the oil filler point injection also will flow to the guide ring from the clearance, realize the lubrication between guide ring and the plunger rod, and the guide ring also only plays the guide effect, guide ring and plunger rod are clearance fit also, lubricating oil will move to between partial sealing washer and the plunger rod along the plunger rod, realize the lubrication of contact position between partial sealing washer and the plunger rod, reduce seal assembly and the dry friction condition of plunger rod, be favorable to prolonging seal assembly's life.

Preferably, as an improvement, the number of the oil filling holes is multiple, the periphery of the upper sealing sleeve is provided with annular grooves, the annular grooves are communicated with all the oil filling holes, the oil inlet channel is communicated with the annular grooves, and the oil inlet channel is connected with a transparent pipe with an upward opening.

The beneficial effects are that: when the axial leakage of seal assembly wearing and tearing and the axial appears in this scheme, the fluid in the ration chamber is followed plunger rod axial displacement under pressure and is followed the oil filler point and dashes out to the transparent intraductal, and the staff can know the emergence of leaking the material condition fast through the change on the transparent pipe.

In addition, the plurality of oil holes are arranged, so that lubrication is uniform; the annular groove is arranged, so that the lubricating oil is added simply and conveniently, and the installation requirement on the sealing assembly is reduced.

Drawings

Fig. 1 is a schematic three-dimensional structure of an embodiment of the present invention.

Fig. 2 is a front view of fig. 1.

Fig. 3 is a front cross-sectional view of fig. 1 (with only portions of the cylinder and drive mechanism broken away).

Fig. 4 is a right cross-sectional view of fig. 1.

Fig. 5 is a schematic three-dimensional structure of a transmission mechanism according to an embodiment of the present invention (with the protective cover removed).

Fig. 6 is a front view of fig. 5 with a protective cover.

Fig. 7 is a front cross-sectional view of fig. 5 with a protective cover.

Fig. 8 is a front view of an embodiment of the present invention showing only the drive shaft, output block, mounting structure and plunger rod.

Fig. 9 is a cross-sectional view A-A of fig. 8.

Fig. 10 is a front cross-sectional view of a seal assembly in an embodiment of the invention.

FIG. 11 is a cross-sectional view showing the connection between the seal assembly and the second, transparent tube of the end fitting according to an embodiment of the present invention.

Detailed Description

The following is a further detailed description of the embodiments:

reference numerals in the drawings of the specification include: the cylinder body 100, the transition block 101, the dosing chamber 102, the glue gun assembly 200, the shut-off valve 300, the driving mechanism 11, the transmission mechanism 10, the driving shaft 12, the output block 13, the plunger rod 14, the supporting seat 15, the first end seat 151, the second end seat 152, the protective cover 153, the observation plate 154, the connecting rod 155, the oil inlet channel 156, the transparent pipe 157, the plug 158, the pressing plate 16, the mounting seat 17, the bushing 171, the guide rod 18, the buffer block 19, the sealing assembly 20, the upper sealing sleeve 21, the positioning column 210, the lower sealing sleeve 22, the supporting protrusion 220, the sealing ring 23, the guide ring 24, the oil filling hole 211 and the annular groove 212.

An embodiment is substantially as shown in figures 1 to 11.

The single-drive double-component quantifying machine comprises a metering assembly and a glue gun assembly 200, wherein the metering assembly comprises a cylinder body, a driving mechanism 11 and a transmission mechanism 10, the cylinder body comprises a cylinder body 100 and a transition block 101, two quantifying cavities 102 are arranged on the cylinder body 100, and two transition channels are arranged on the transition block 101; the glue gun assembly 200 is a glue gun assembly on the existing two-component quantitative machine, and not described in detail herein, the transition channel communicates the quantitative cavity 102 with the glue gun assembly 200, each quantitative cavity 102 is correspondingly provided with a shut-off valve 300, the quantitative cavity 102 is communicated with the shut-off valve 300, and the shut-off valve 300 is fixedly connected with the cylinder body 100.

The driving mechanism 11 adopts the driving mechanism of a conventional double-component quantifying machine, the driving mechanism comprises a driving motor and a speed reducer, the driving motor is used for providing power for the speed reducer, an output shaft of the speed reducer is used for providing power for the transmission mechanism 10, the transmission mechanism 10 comprises a driving shaft 12, an output block 13, two plunger rods 14 fixed on the output block 13 and a supporting seat 15, the supporting seat 15 is fixedly connected with a cylinder body 100 through screws, the driving shaft 12 adopts a screw rod, the screw rod is rotationally connected on the supporting seat 15, the output block 13 is arranged on the screw rod, the output block 13 and the driving shaft 12 form a ball screw rod structure, the output block 13 is a sliding block on the screw rod, the driving mechanism 11 is used for driving the driving shaft 12 to rotate forward/reversely, the driving shaft 12 drives the output block 13 to reciprocate under the forward/reverse rotation, the driving mechanism 11 is fixedly arranged on the supporting seat 15, the plunger rods 14 pass through the supporting seat 15 and are inserted into corresponding quantifying cavities 102, a sealing component 20 is sleeved on each plunger rod 14, the sealing component 20 is positioned at one end of the quantifying cavity 102 close to the output block 13, and the sealing component 20 in the embodiment is positioned at the top of the quantifying cavity 102.

The plunger rod 14 is connected to the output block 13 in the following specific manner: the output block 13 is sleeved with a mounting structure, the mounting structure comprises a pressing plate 16 and a mounting seat 17 which are connected through screws, and the pressing plate 16 is fixedly connected with the output block 13 through screws. At least two mounting holes are uniformly distributed in the circumferential direction of the mounting seat 17, and the number of the mounting holes in the embodiment is 2. Each mounting hole is capable of mounting a plunger rod 14, the plunger rod 14 having a protrusion thereon which is capable of being gripped by a pressure plate 16 and a mounting seat 17. Specifically, the end of the plunger rod 14 is T-shaped, the T-shaped head of the plunger rod 14 forms the protruding portion, the T-shaped head is located in a mounting groove formed in the mounting seat 17, the mounting groove is communicated with the mounting hole, when the plunger rod 14 is mounted, the plunger rod 14 is abutted against the mounting groove through the pressing plate 16 to achieve fixed mounting of the plunger rod 14, when the plunger rod 14 needs to be dismounted and replaced, the mounting seat 17/the pressing plate 16 can be separated from the output block 13 only by dismounting a connecting screw between the pressing plate 16 and the mounting seat 17, and further the plunger rod 14 is convenient to take and place.

The supporting seat 15 is fixedly provided with a guide rod 18, the mounting seat 17 of the mounting structure is provided with a guide hole, the guide hole is sleeved with a bushing 171, the guide rod 18 is sleeved on the bushing 171 of the guide hole, the bushing 171 is in clearance fit with the guide rod 18, and the output block 13/the plunger rod 14 is slidably connected to the guide rod 18 through the mounting seat 17.

The supporting seat 15 comprises a first end seat 151 and a second end seat 152, a protective cover 153 is arranged between the first end seat 151 and the second end seat 152, two ends of the protective cover 153 are inserted into the corresponding end seats, the protective cover 153 sleeves the driving shaft 12, the plunger rod 14 and the output block 13, detachable fixed connection (threaded structure connection) is realized between the first end seat 151 and the second end seat 152 through a connecting rod 155, and the driving mechanism 11 is fixedly arranged on the first end seat 151.

The first end seat 151 and the second end seat 152 are fixedly provided with buffer pieces through screws, the buffer pieces are annular buffer blocks 19, and the buffer blocks 19 are positioned in the protective cover 153; two buffer blocks 19 are located at both ends of the moving direction of the plunger rod 14.

The driving shaft 12 is of a cantilever structure, one end of the driving shaft 12 is mounted on the first end seat 151, the cantilever end of the driving shaft 12 is inserted into the annular structure of the buffer block 19, the output block 13 can also extend into the annular structure of the buffer block 19 in the process of moving along the driving shaft 12, and the annular structure of the buffer block 19 is arranged, so that the stroke of the output block 13 on the driving shaft 12 can be longer under the condition that the length of the transmission mechanism 10 is unchanged.

Be equipped with the observation hole on the safety cover 153, can dismantle on the observation hole and be connected with transparent observation board 154, through the setting of transparent observation board 154, make things convenient for the staff to see through the motion condition of output piece 13, plunger rod 14 in the safety cover 153 through observation board 154 and observation hole. In addition, after the viewing plate 154 is removed, lubricating oil can be conveniently added to the oil cup on the output block 13 through the viewing hole.

The plunger rod 14 penetrates the second end seat 152, the second end seat 152 can be fixedly connected with the cylinder body 100 through a screw, a part of the sealing assembly 20 is inserted into the supporting seat 15, and the rest of the sealing assembly 20 is inserted into the cylinder body 100.

Specifically: the sealing assembly 20 comprises a sealing sleeve, a sealing ring 23 capable of being sleeved on the plunger rod 14 and a guide ring 24 for guiding the plunger rod 14, wherein the sealing sleeve comprises an upper sealing sleeve 21 and a lower sealing sleeve 22 which are in threaded connection, and the upper sealing sleeve 21 and the lower sealing sleeve 22 are in clearance fit with the plunger rod 14.

In order to improve the coaxiality of the upper sealing sleeve 21 and the lower sealing sleeve 22, a positioning column 210 is integrally formed on the upper sealing sleeve 21, a positioning groove is processed on the lower sealing sleeve 22, and the positioning column 210 is matched with the positioning groove in a concave-convex mode.

The number of the sealing rings 23 is three, the three sealing rings 23 are all U-shaped sealing rings 23 with springs, the springs are located in the U-shaped structures of the U-shaped sealing rings 23, and the U-shaped openings of the sealing rings 23 face the quantitative cavity 102. The number of the guide rings 24 is two, the two axial sides of each guide ring 24 are respectively provided with a sealing ring 23, the guide rings 24 are in clearance fit with the plunger rod 14, the guide rings 24 are in tight fit (i.e. interference fit) with the sealing sleeve, and the guide rings 24 are wear-resistant rings. The seal ring 23 and the guide ring 24 are alternately arranged in the axial direction of the seal assembly 20, forming a soft-hard alternate configuration of the seal ring 23-guide ring 24-seal ring 23.

The length of the upper sealing sleeve 21 is smaller than that of the lower sealing sleeve 22, the guide rings 24 are all positioned in the lower sealing sleeve 22, one part of the lower sealing sleeve 22 is positioned in the supporting seat 15, and the other part of the lower sealing sleeve 22 is positioned in the cylinder body 100.

A placing groove is arranged at the top opening of the upper sealing sleeve 21, and a supporting protrusion 220 is integrally formed on the lower sealing sleeve 22. The three sealing rings 23 are sequentially called an upper sealing ring 23, a middle sealing ring 23 and a lower sealing ring 23 from top to bottom in the axial direction, and the guide ring 24 is sequentially called an upper guide ring 24 and a lower guide ring 24 from top to bottom in the axial direction; the upper sealing ring 23 is located in the placing groove of the upper sealing sleeve 21, the upper guiding ring 24 and the middle sealing ring 23 are located between the positioning column 210 and the supporting protrusion 220, the middle sealing ring 23 and the lower guiding ring 24 are located on the upper side and the lower side of the supporting protrusion 220 of the lower sealing sleeve 22, and the lower sealing ring 23 is located at the bottom opening of the lower sealing sleeve 22.

When the sealing assembly 20 is used, the top of the upper sealing sleeve 21 and the bottom of the lower sealing sleeve 22 are respectively abutted by the seat bodies so as to ensure that the sealing rings 23 at the two ends and the axial direction of the sealing sleeve are limited.

The upper sealing sleeve 21 is provided with a plurality of radial oil holes 211, the plurality of oil holes 211 are positioned on the same circumference of the upper sealing sleeve 21, the periphery of the upper sealing sleeve 21 is provided with annular grooves 212, and the annular grooves 212 are communicated with all the oil holes 211.

The second end seat 152 is provided with an oil inlet channel 156, the oil inlet channel 156 is communicated with the annular groove 212, and the oil inlet channel 156 of the second end seat 152 is provided with a transparent pipe 157. The transparent tube 157 is vertically arranged, and a plug 158 is installed at the top opening position of the transparent tube 157. When leakage occurs in the sealing assembly 20, leaked glue can enter the annular groove 212 from the oil filling hole 211 and finally is extruded into the transparent tube 157 through the oil inlet channel 156, so that a worker can quickly know the occurrence of leakage caused by sealing abrasion due to the change of the transparent tube 157.

The assembly method of the double-component quantifying machine of the embodiment comprises the following steps:

s1, assembling a transmission mechanism 10; the specific assembly comprises the following substeps:

s11, firstly inserting the plunger rod 14 on the mounting seat 17, and then pressing the pressing plate 16 to the mounting seat 17, so that the convex part on the plunger rod 14 is clamped by the pressing plate 16 and the mounting seat 17; in this step, the mounting structure is fixed to the output block 13 (specifically, the pressing plate 16 is fixedly connected to the output block 13 by screws in this embodiment).

S12, taking the whole body with the first end seat 151, the driving shaft 12, the output block 13, the mounting structure and the plunger rod 14, and then sleeving the protective cover 153 outside the driving shaft 12, the output block 13 and the plunger rod 14; then, the plunger rod 14 penetrates through the first end seat 151, and finally, the first end seat 151 and the second end seat 152 are fixedly connected.

S13, sleeving the sealing assembly 20 on a section of the plunger rod 14 penetrating through the second end seat 152.

S2, mounting the transmission mechanism 10 on a cylinder body, sleeving a sealing assembly 20 on a plunger rod 14 on the transmission mechanism 10, inserting one part of the sealing assembly 20 into the cylinder body, positioning the other part of the sealing assembly 20 on a second end seat 152 of the supporting seat 15, and fixedly connecting the supporting seat 15 with the cylinder body (specifically, fixedly connecting the second end seat 152 with the cylinder body 100 through screws) after the sealing assembly 20 and the plunger rod 14 are inserted in place.

By adopting the two-component quantifying machine of the embodiment, two plunger rods 14 can be driven to synchronously reciprocate by one driving mechanism 11, in the process of reciprocating the plunger rods 14, external glue components enter corresponding quantifying cavities 102 through corresponding shutoff valves 300, enter the glue gun assemblies 200 from the quantifying cavities 102 through transition blocks 101, and finally are extruded to be dispensed/glued after the mixing pipes of the glue gun assemblies 200 are mixed.

In this embodiment, each plunger rod 14 can be used as the plunger rod 14 corresponding to the dosing cavity 102, so that the filling and discharging of the cylinder body on the dosing machine are realized, and two-rod output under the single driving mechanism 11 is realized through this embodiment, so that the two dosing cavities 102 can keep synchronous movement under the condition that the plunger rod 14 shares the driving mechanism 11 and the output block 13. Compared with the prior art, the number of the driving mechanisms 11 is reduced by one relatively, so that the number of times that the driving mechanisms 11 need to be overhauled due to the problem of long-time use is reduced, and meanwhile, the synchronous movement of the two plunger rods 14 can be ensured after the driving mechanisms 11 are shared, so that the condition of debugging the integral coordination of the driving mechanisms 11 corresponding to the two quantitative cavities 102 for realizing the synchronization of the two quantitative cylinders does not exist, and the debugging time is greatly shortened. In this embodiment, one driving mechanism 11 drives two plunger rods 14 to synchronously move, so that the two-component colloid is ensured to be discharged or filled all the time simultaneously, the problem of different mixing ratios caused by different reciprocating movement directions of the two plunger rods is avoided, and the problems that in the prior art, the driving mechanism on any quantitative cylinder cannot timely detect faults, the discharging is abnormal, and the actual mixing ratio cannot meet the design requirement are also avoided.

In this embodiment, two plunger rods 14 acting on the dosing chamber 102 share one driving mechanism 11, so that the number of the driving mechanisms 11 is reduced by one set compared with the prior art, the cost is reduced, the volume and the weight of the whole two-component dosing machine are reduced, the requirement on the manipulator when the two-component dosing machine is mounted on the manipulator is met, and meanwhile, the range of operation of the gluing equipment can be improved after the size and the weight of the two-component dosing machine are reduced.

The sealing component 20 sleeved on the plunger rod 14 not only has more than one sealing function on the axial direction of the plunger rod 14, but also can lead the plunger rod 14 to be guided by the guide ring 24 and the guide rod 18 in the reciprocating movement process, thus ensuring the reciprocating movement stability of the plunger rod 14; meanwhile, in the design of the sealing assembly 20, through the design of the upper sealing sleeve 21 and the lower sealing sleeve 22 with the positioning columns 210 and the positioning grooves, the three sealing rings 23 and the two guide rings 24 in the sealing assembly 20 are convenient to simply install, the coaxiality of the upper sealing sleeve 22 and the lower sealing sleeve 22 can be realized, the coaxiality of the sealing assembly 20 and the plunger rod 14 is ensured, and the service lives of the sealing assembly 20 and the plunger rod 14 are prolonged.

For the two-component quantifying machine, the diameter of the plunger rod 14 is only about 15mm, in this embodiment, through the improvement setting of the seal assembly 20 on the seal sleeve length, the alternate setting of the seal ring 23 and the guide ring 24, the axial length setting of the seal ring 23 and the guide ring 24 and the selection of the seal ring 23, it is ensured that the seal ring 23 not only can be installed in a very small size space, but also can ensure that the seal ring 23 cannot generate plastic deformation in the installation process, and further, it is ensured that the seal assembly 20 is not damaged to the seal ring 23 in the assembly or disassembly process, and meanwhile, the seal ring 23 is located between two adjacent hard structures, and the hard structures are either the structures of the seal sleeve or the guide ring 24 in interference fit with the seal sleeve, so that after the seal ring 23 is installed, the space capable of deforming is ensured in the axial direction (the axial installation space of the seal sleeve is larger than the axial thickness dimension of the seal sleeve in the free state), and further, the sealing performance of the seal ring 23 can be fully exerted, and the sealing performance of the seal assembly 20 is greatly improved.

The arrangement of the oil filling hole 211, the annular groove 212, the oil inlet channel 156 and the transparent pipe 157 on the sealing assembly 20 in the embodiment is convenient for adding lubricating oil into the sealing assembly 20 through the transparent pipe 157 when the quantitative machine works normally, and realizes the lubrication between the upper sealing sleeve 21 and the plunger rod 14, and between the upper guide ring 24 and the plunger rod 14; when the sealing assembly 20 leaks glue, the high-pressure glue in the dosing cavity 102 passes through the lower sealing ring 23, the lower guiding ring 24, the middle sealing ring 23 and the upper guiding ring 24, enters the annular groove 212 from the oil filling hole 211, and finally is extruded from the top of the transparent tube 157, so that a worker can visually see the situation of glue leakage.

In addition, when the quantifying machine of the embodiment has a problem and needs to be disassembled, the disassembly and assembly of the transmission mechanism 10 and the disassembly and assembly of the sealing assembly 20 are very simple and convenient, and the maintenance time consumption of the quantifying machine is reduced.

The foregoing is merely exemplary of the present invention, and specific technical solutions and/or features that are well known in the art have not been described in detail herein. It should be noted that, for those skilled in the art, several variations and modifications can be made without departing from the technical solution of the present invention, and these should also be regarded as the protection scope of the present invention, which does not affect the effect of the implementation of the present invention and the practical applicability of the patent. The protection scope of the present application shall be subject to the content of the claims, and the description of the specific embodiments and the like in the specification can be used for explaining the content of the claims.

Claims (10)

1. The utility model provides a single driven two ingredient ration machine, includes metering assembly and gluey rifle subassembly, and metering assembly includes cylinder body, actuating mechanism and drive mechanism, and the cylinder body includes two ration chambeies, its characterized in that: the transmission mechanism comprises an output block and two plunger rods fixed on the output block, the driving mechanism is used for driving the output block to reciprocate, each plunger rod is sleeved with a sealing component, the sealing components are arranged at one end of the quantifying cavity, which is close to the output block, each sealing component comprises a sealing ring and a guiding ring, and the two axial sides of each guiding ring are respectively provided with a sealing ring, and each guiding ring is in clearance fit with each plunger rod.

2. The single-drive two-component dosing machine of claim 1, wherein: the output block is fixedly connected with a mounting structure, the mounting structure comprises a pressing plate and a mounting seat which are detachably connected, at least two mounting holes are formed in the mounting seat, plunger rods can be inserted into the mounting holes, protruding portions are arranged on the plunger rods, and the protruding portions can be clamped by the pressing plate and the mounting seat.

3. The single-drive two-component dosing machine of claim 1, wherein: the transmission mechanism further comprises a fixedly mounted supporting seat, the plunger rod penetrates through the supporting seat and is inserted into the corresponding dosing cavity, a part of the sealing assembly is inserted into the supporting seat, and the rest of the sealing assembly is inserted into the cylinder body.

4. A single-drive two-component dosing machine according to claim 3, characterized in that: the support seat comprises a first end seat and a second end seat which are detachably connected, a protective cover is arranged between the first end seat and the second end seat, the protective cover is used for sleeving the plunger rod and the output block, the driving mechanism is fixed on the first end seat, and the second end seat is detachably connected with the cylinder body.

5. The single-drive two-component dosing machine of any one of claims 1-4, wherein: the sealing assembly further comprises a sealing sleeve, the sealing sleeve is in clearance fit with the plunger rod, the sealing ring and the guide ring are installed in the sealing sleeve, the sealing sleeve comprises an upper sealing sleeve and a lower sealing sleeve which are detachably connected, one of the upper sealing sleeve and the lower sealing sleeve is provided with a positioning groove, and the other sealing sleeve is provided with a positioning column which is in concave-convex fit with the positioning groove.

6. The single-drive two-component dosing machine of claim 5, wherein: the support seat is fixedly provided with a guide rod which is parallel to the plunger rod, and the output block is connected to the guide rod in a sliding way.

7. The single-drive two-component dosing machine of claim 5, wherein: the number of the guide rings is at least two, and the guide rings and the sealing rings are alternately arranged along the axial direction.

8. The single-drive two-component dosing machine of claim 6, wherein: the length of the upper sealing sleeve is smaller than that of the lower sealing sleeve, the guide rings are all positioned in the lower sealing sleeve, one part of the lower sealing sleeve is positioned in the supporting seat, and the other part of the lower sealing sleeve is positioned in the cylinder body.

9. The single-drive two-component dosing machine of claim 8, wherein: the upper sealing sleeve is provided with an oil filling hole penetrating through the wall thickness of the upper sealing sleeve, one end of the upper sealing sleeve, which is close to the lower sealing sleeve, is provided with a guide ring, and the support seat is provided with an oil inlet channel communicated with the oil filling hole.

10. The single-drive two-component dosing machine of claim 9, wherein: the number of the oil filling holes is multiple, an annular groove is formed in the periphery of the upper sealing sleeve and communicated with all the oil filling holes, an oil inlet channel is communicated with the annular groove, and a transparent pipe with an upward opening is connected to the oil inlet channel.