CN216045503U - Liquid drainage butterfly valve with internal clamping opening type liquid packaging bag - Google Patents
Liquid drainage butterfly valve with internal clamping opening type liquid packaging bag Download PDFInfo
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- CN216045503U CN216045503U CN202122752502.8U CN202122752502U CN216045503U CN 216045503 U CN216045503 U CN 216045503U CN 202122752502 U CN202122752502 U CN 202122752502U CN 216045503 U CN216045503 U CN 216045503U
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Abstract
The utility model discloses an inner-clamping opening type liquid-discharging butterfly valve for a liquid packaging bag, which comprises a valve body, a valve cover, a blocking cover, a sealing disc and a handle, wherein the valve body is in a hollow cylindrical structure, and the bottom end of the valve body is heat-sealed at a discharge port of the liquid packaging bag. The inside wall of the valve body is fixedly provided with a positioning rotating shaft, and the valve cover is in threaded connection with the top end of the valve body. The lateral wall of the valve body is fixedly provided with an annular boss, the plugging cover is clamped and connected on the annular boss, one side of the plugging cover facing the valve body is fixedly provided with a transmission rotating shaft, and the other side of the plugging cover is provided with a bayonet. The sealing disc is transversely arranged at the upper end inside the valve body, and the bottom of the sealing disc is simultaneously connected with the positioning rotating shaft and the transmission rotating shaft. One end of the handle is embedded in a clamping opening clamped in the blocking cover and is rotatably connected with the blocking cover through a pin shaft. The utility model adopts the embedded clamping connection mode to connect the handle and the plug cover, thereby increasing the strength, ensuring that the handle is not easy to break off during operation, more stable rotation, shortened length of the transmission rotating shaft, easy molding during injection molding, difficult bending and reduced defective rate.
Description
Technical Field
The utility model relates to the technical field of liquid packaging bag accessories, in particular to an inner-clamping opening type liquid discharging butterfly valve for a liquid packaging bag.
Background
The butterfly valve is a valve which uses a disc type opening and closing piece to rotate back and forth by about 90 degrees to open, close or adjust the medium flow.
In the liquid storage and transportation industry, disposable liquid bags are widely used for packaging in order to better save cost and facilitate storage and transportation. The disposable liquid bag has two structures of multilayer and single-layer, wherein the inner layer of the multilayer structure is generally made of 4 layers of 0.125mm polyethylene materials, and the outer layer is polypropylene woven cloth; the single-layer structure is polyethylene material. The disposable liquid container packaging bag using PE and PP as raw materials has an inner container with a volume of 600L-2000L, and can be used for carrying liquids such as fruit juice, egg liquid, chemical agents and the like. The using method of the liquid packaging bag comprises the steps of filling liquid from the feeding hole, sealing, transporting to a client site for storage, and discharging to a split charging production line through the discharging hole. In the practical use process, the liquid discharge valve is required to have the functions of cutting off and adjusting the liquid flow.
As the attached figure 10 of the specification, for an adjustable liquid discharge valve used in the prior art, the adjustable liquid discharge valve comprises a valve seat, a valve cover and a handle, wherein the valve cover is in threaded connection with the top end of the valve seat, the handle is rotatably connected in the middle of the valve seat, a sealing disc is rotatably arranged in the valve seat through a rotating shaft, and the sealing disc is driven to rotate around the rotating shaft through rotating the handle, so that the size of liquid discharge flow is adjusted. However, the technical scheme has the following problems:
1. the joint of the handle and the valve seat is fragile, low in strength and easy to generate stress concentration, and the handle is easy to extrude and crack in the transportation process, so that the subsequent use is influenced; 2. the pivot runs through the disk seat and is connected with the closing disk rotation from the one end of disk seat, and pivot length is longer, easily produces the bending among the injection molding process, leads to the defective percentage to rise.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide an inner-clamping opening type liquid drainage butterfly valve for a liquid packaging bag, which is characterized in that the joint of a handle is not easy to generate stress concentration, the handle is not easy to break off during operation, the rotation is more stable, the length of a rotating shaft is shortened, the injection molding is easy to mold, the bending is not easy to generate, the product quality can be ensured, and the defective rate is reduced.
In order to achieve the purpose, the utility model adopts the following technical scheme:
an inside callipers open-type liquid packaging bag flowing back butterfly valve includes:
a valve body: the valve body is of a hollow cylindrical structure, the bottom end of the valve body is thermally sealed at a discharge port of the liquid packaging bag, a positioning rotating shaft is fixedly arranged on the inner side wall of the valve body, and an annular boss is fixedly arranged on the outer side wall of the valve body;
valve cover: the valve cover is in threaded connection with the top end of the valve body;
plugging a cover: the blocking cover is clamped on the annular boss, a transmission rotating shaft is fixedly arranged on one side of the blocking cover, which faces the valve body, and a bayonet is arranged on the other side of the blocking cover;
sealing the disc: the sealing disc is transversely arranged at the upper end in the valve body, and the bottom of the sealing disc is simultaneously connected with the positioning rotating shaft and the transmission rotating shaft;
a handle: one end of the handle is embedded in the clamping opening of the blocking cover and is connected with the blocking cover through a pin shaft in a rotating mode, so that the handle can rotate around the pin shaft and can be stored below the valve cover.
Further setting the following steps: a first lifting lug and a second lifting lug are oppositely arranged at the bottom of the sealing disc along the radial direction of the sealing disc, and the first lifting lug is provided with a positioning hole matched with the circumference of the positioning rotating shaft; and a transmission strip is fixedly arranged on one end of the transmission rotating shaft, which is far away from the plugging cover, along the radial direction of the peripheral side of the transmission rotating shaft, and a transmission hole matched with the peripheral diameter of the transmission strip is formed in the second lifting lug.
Further setting the following steps: two positioning clamping blocks are oppositely arranged on the peripheral side of the plug cover, an arc-shaped groove is formed in the annular boss, and the width direction of the arc-shaped groove is matched with the thickness of the positioning clamping blocks; the annular boss transversely extends to form a limiting semi-ring, a first limiting block and a second limiting block are integrally arranged on the inner side wall of the limiting semi-ring, a plurality of limiting grooves are formed in the outer side wall of the blocking cover, and the circumference of the first limiting block and the circumference of the second limiting block are matched with the limiting grooves.
Further setting the following steps: and one side of the blocking cover, which is back to the valve body, is also provided with a rotation stopping groove, and the rotation stopping groove is communicated with the bayonet.
Further setting the following steps: a first sealing groove is formed in the peripheral side of one end, close to the plugging cover, of the transmission rotating shaft, and a first sealing ring is arranged in the first sealing groove.
Further setting the following steps: the periphery of the seal disc is provided with a second seal groove, and a second seal ring is embedded in the second seal groove.
Further setting the following steps: a third sealing groove is formed in the top of the valve body, a third sealing ring is embedded in the third sealing groove, an annular sealing convex rib is fixedly arranged at the bottom of the valve cover, and the sealing convex rib is tightly abutted against the third sealing ring; the valve cover is symmetrically provided with two clamping holes, the bottom of the valve cover is integrally provided with a first annular reinforcing rib and a second annular reinforcing rib, and the first annular reinforcing rib and the second annular reinforcing rib are connected with the clamping holes of the valve cover.
Further setting the following steps: the T-shaped positioning blocks are fixedly arranged on the peripheral side of the valve body and are in clamping fit with the square grooves of the handle; the handle is far away from the one end of round pin axle and has seted up the lead sealing hole, a plurality of theftproof holes have been seted up to the edge of valve gap equidistant, wear to be equipped with disposable lead sealing ring simultaneously on lead sealing hole and one of them theftproof hole.
Further setting the following steps: the valve body adopts integral type valve body structure or split type valve body structure, integral type valve body structure sets up to: the liquid packaging bag comprises a first valve body and a first valve seat which are integrally formed in an injection molding mode, wherein a first bottom flange is arranged at the bottom of the first valve seat, and the lower end face of the first bottom flange is thermally sealed at a discharge port of the liquid packaging bag; the split valve body structure is set as follows: the bottom of the second valve body is connected to the top of the second valve seat in a press fit mode, a middle flange is arranged on the second valve body, the top of the second valve seat tightly supports against the middle flange of the second valve body, a second bottom flange is arranged at the bottom of the second valve seat, and the lower end face of the second bottom flange is sealed at a discharge port of the liquid packaging bag in a heat seal mode.
Further setting the following steps: and a positioning groove is formed in a flange at the middle part of the second valve body.
Compared with the prior art, the utility model has the beneficial technical effects that:
1. the handle is rotatably connected with the blocking cover through the pin shaft in an embedded clamping mode, the strength is increased, stress concentration is not easy to generate, the handle is not easy to break when the handle is opened, the bayonet is narrow, and the handle is more stable in rotation.
2. The length of the transmission rotating shaft is shortened, the injection molding is easy, the bending is not easy to generate, the product quality can be ensured, and the defective rate is reduced.
3. The sealing disc is pre-installed on the positioning rotating shaft of the valve body, so that the installation is more convenient, the process steps are saved, the subsequent rotating shaft is conveniently positioned, the sealing performance is stronger, and the leakage is not easy.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.
FIG. 1 is a schematic view of the overall structure of embodiment 1 of the present invention;
FIG. 2 is an exploded view of the structure of example 1 of the present invention;
FIG. 3 is an enlarged schematic view of the closure of the present invention;
FIG. 4 is a front view of embodiment 1 of the present invention;
FIG. 5 is a cross-sectional view taken along line A-A of FIG. 4;
FIG. 6 is a perspective view of the valve cover of the present invention;
FIG. 7 is a front view of embodiment 2 of the present invention;
FIG. 8 is a cross-sectional view taken along line B-B of FIG. 7;
fig. 9 is a perspective view of a second valve body of embodiment 2 of the utility model;
fig. 10 is a schematic diagram of an adjustable drain valve according to the background art.
Reference numerals: 100. a valve body; 101. a through hole; 110. positioning the rotating shaft; 120. an annular boss; 121. an arc-shaped slot; 130. a limiting semi-ring; 131. a first stopper; 132. a second limiting block; 140. a T-shaped positioning block; 150. a first bottom flange; 200. a valve cover; 201. clamping the hole; 202. an anti-theft hole; 210. screwing the cylinder; 220. a first annular reinforcing rib; 230. a second annular reinforcing rib; 240. sealing the convex ribs; 300. blocking the cover; 301. a bayonet; 302. a limiting groove; 303. a rotation stopping groove; 310. a transmission rotating shaft; 311. a drive bar; 320. positioning the clamping block; 400. sealing the disc; 410. a first lifting lug; 411. positioning holes; 420. a second lifting lug; 421. a drive bore; 500. a handle; 501. a pin shaft; 502. a square groove; 503. sealing the lead hole; 504. lead sealing ring; 600. a second valve body; 610. a middle flange; 611. positioning a groove; 620. pressing the cylinders; 700. a second valve seat; 710. a second bottom flange; 801. a first seal ring; 802. a second seal ring; 803. and a third sealing ring.
Detailed Description
The technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings, and it should be understood that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
Example 1
An inner-clamping opening type liquid-discharging butterfly valve for a liquid packaging bag is shown in figures 1-9 and comprises a valve body 100, a valve cover 200, a blocking cover 300, a sealing disc 400 and a handle 500, wherein the valve body 100 is in a hollow cylindrical structure, and the bottom end of the valve body is heat-sealed at a discharge port of the liquid packaging bag. In this embodiment, the valve body 100 adopts an integrated valve body structure, and the specific structure thereof is set as follows: including integrative injection moulding's first valve body and first disk seat, the bottom of first disk seat is provided with first bottom flange 150, and the lower terminal surface heat seal of first bottom flange 150 is in the discharge gate department of liquid packaging bag.
The edge of the valve cover 200 is bent downwards to form a screwing cylinder 210, the inner side wall of the screwing cylinder 210 is provided with internal threads, the outer side wall of the top of the valve body 100 is provided with external threads matched with the internal threads, and the valve cover 200 can be screwed on the top end of the valve body 100 in a rotating mode through threaded connection of the internal threads and the external threads.
Referring to fig. 2 and 3, a positioning rotating shaft 110 is integrally fixed on the inner side wall of the valve body 100, and an annular boss 120 is integrally fixed on the outer side wall of the valve body 100. One side of the blocking cover 300 facing the valve body 100 is integrally and fixedly provided with a transmission rotating shaft 310, and the other side is provided with a U-shaped bayonet 301. The sealing plate 400 is transversely disposed at the upper end of the interior of the valve body 100, and the bottom of the sealing plate 400 is connected to the positioning rotating shaft 110 and the transmission rotating shaft 310. The joint is inlayed to the one end of handle 500 and is established in bayonet 301 of blanking cover 300 and rotate through round pin axle 501 and connect on the blanking cover 300, and the pinhole that supplies round pin axle 501 to wear to establish is seted up along vertical direction to the blanking cover 300 for handle 500 can rotate and accomodate in valve gap 200 below around round pin axle 501, as shown in fig. 1.
Referring to fig. 4 and 5, a first lifting lug 410 and a second lifting lug 420 are oppositely arranged at the bottom of the seal disc 400 along the radial direction of the seal disc, the first lifting lug 410 is provided with a positioning hole 411 matched with the circumference of the positioning rotating shaft 110, and the seal disc 400 is rotatably connected with the positioning rotating shaft 110 through the positioning hole 411, so that the positioning is realized. Referring to fig. 2 and fig. 3, a driving bar 311 is fixedly disposed on one end of the driving shaft 310 away from the blocking cover 300 along the radial direction of the circumferential side thereof, a driving hole 421 adapted to the circumferential diameter of the driving bar 311 is formed on the second lifting lug 420, meanwhile, a through hole 101 is disposed on the sidewall of the valve body 100, the through hole 101 and the positioning shaft 110 are symmetrically disposed about the axial plane of the valve body 100, and the driving shaft 310 penetrates through the through hole 101 of the valve body 100 and is in driving connection with the sealing disc 400. The transmission hole 421 increases the contact area between the transmission shaft 310 and the second lifting lug 420, so as to increase the radial transmission force, and the radial transmission force of the transmission shaft 310 on the sealing disc 400 is utilized to drive the sealing disc 400 to rotate around the positioning shaft 110 and the transmission shaft 310 simultaneously, so as to realize the opening, closing and flow regulation of the butterfly valve.
The blanking cover 300 is clamped on the annular boss 120, and referring to fig. 2 and 3, the specific structure is as follows: the circumference of the blocking cover 300 is provided with two positioning clamping blocks 320 in the radial direction, the annular boss 120 is provided with an arc-shaped groove 121, the width direction of the arc-shaped groove 121 is matched with the thickness of the positioning clamping blocks 320, so that the displacement of the blocking cover 300 in the horizontal direction is limited, but the rotation of the blocking cover in the axial direction of the transmission rotating shaft 310 is not limited. Referring to fig. 3 and 4, the annular boss 120 extends along the radial direction of the valve body 100 to form a limiting half ring 130, the inner side wall of the limiting half ring 130 is integrally provided with a first limiting block 131 and a second limiting block 132, the outer side wall of the blocking cover 300 is provided with a plurality of limiting grooves 302, and the circumferential diameters of the first limiting block 131 and the second limiting block 132 are matched with the limiting grooves 302.
Referring to fig. 3, one side of the blocking cover 300, which faces away from the valve body 100, is further provided with a rotation stopping groove 303, the rotation stopping groove 303 is communicated with the bayonet 301, the handle 500 rotates around the pin 501 so that one end of the handle 500 is far away from the valve body 100 until the other end of the handle 500 abuts against the rotation stopping groove 303, and the rotation stopping groove 303 plays a role in rotation stopping and limiting, that is, the handle 500 can rotate around the pin 501 by 80 degrees to reach an optimal operation position.
When the handle 500 is screwed clockwise 90 degrees around the transmission rotating shaft 310 until the limit groove 302 at the topmost part is clamped with the second limit block 132, the sealing disc 400 is driven by the transmission rotating shaft 310 to rotate 90 degrees, the interior of the valve body 100 is in a fully opened state, and the flow rate is maximum; when the handle 500 is turned by 90 ° counterclockwise until the limiting groove 302 at the top returns to the initial state, i.e. is clamped to the first limiting block 131, the sealing disc 400 is reset to make the inside of the valve body 100 in the closed state.
Referring to fig. 5, a first sealing groove is formed at one end of the transmission rotation shaft 310 close to the plug 300 on the circumferential side thereof, a first sealing ring 801 is disposed in the first sealing groove, and the first sealing ring 801 can improve the sealing performance between the plug 300 and the valve body 100.
The periphery of the seal disc 400 is provided with a second seal groove, a second seal ring 802 is embedded in the second seal groove, and the second seal ring 802 can improve the sealing performance of the inner side wall of the seal disc 400 and the inner side wall of the valve body 100.
The top of the valve body 100 is provided with a third sealing groove, a third sealing ring 803 is embedded in the third sealing groove, the bottom of the valve cover 200 is fixedly provided with an annular sealing convex rib 240, and the sealing convex rib 240 is tightly abutted against the third sealing ring 803. By providing the third seal 803, the sealing performance between the bonnet 200 and the valve body 100 can be improved.
Referring to fig. 6, the two clamping holes 201 are symmetrically formed in the valve cap 200, the first annular reinforcing rib 220 and the second annular reinforcing rib 230 are integrally formed at the bottom of the valve cap 200, and the first annular reinforcing rib 220 and the second annular reinforcing rib 230 are connected with the clamping holes 201 of the valve cap 200, so that the structural strength of the valve cap 200 is improved, and the valve cap is not prone to cracking due to excessive force during clamping.
Referring to fig. 2, a T-shaped positioning block 140 is fixedly arranged on the periphery of the valve body 100, and the T-shaped positioning block 140 is in clamping fit with a square groove 502 of the handle 500, so that a limiting effect is achieved, and the handle 500 is prevented from being stressed and shaken or broken due to external force extrusion in the transportation process.
Referring to fig. 1, a lead sealing hole 503 is formed at one end of the handle 500 away from the pin 501, a plurality of anti-theft holes 202 are formed at the edge of the valve cover 200 at equal intervals, and a disposable lead sealing ring 504 is simultaneously arranged on the lead sealing hole 503 and one of the anti-theft holes 202 in a penetrating manner. The disposable lead sealing ring 504 plays a role in sealing and theft prevention, and ensures that the liquid packaging bag is not opened before normal use and the liquid in the bag is not polluted or damaged, thereby ensuring the safety of the storage and transportation process. When the liquid in the bag needs to be taken, the disposable lead sealing ring 504 is removed, the valve cover 200 is rotated to be opened, and the size of the liquid discharge flow is adjusted through the handle 500.
The working principle of the embodiment is as follows:
when the liquid in the bag needs to be taken out, the screwing cylinder 210 is firstly screwed to unscrew the valve cover 200. The handle 500 is then rotated 80 degrees about the pin 501 such that one end of the handle 500 is away from the valve body 100 until the other end of the handle 500 abuts the detent groove to reach the optimal operating position.
Then, the handle 500 is screwed clockwise, a torque is applied to the plugging cover 300 through the handle 500 to drive the transmission rotating shaft 310 to rotate clockwise, and the radial transmission force of the transmission rotating shaft 310 to the second lifting lug 420 is utilized to drive the sealing disc 400 to simultaneously rotate around the positioning rotating shaft 110 and the transmission rotating shaft 310, so as to realize the opening and the flow rate adjustment of the butterfly valve.
When the handle 500 is screwed clockwise 90 degrees around the transmission rotating shaft 310 until the limit groove 302 at the topmost part is clamped with the second limit block 132, the sealing disc 400 is driven by the transmission rotating shaft 310 to rotate 90 degrees, the interior of the valve body 100 is in a fully opened state, and the flow rate is maximum; when the handle 500 is turned by 90 ° counterclockwise until the limiting groove 302 at the top returns to the initial state, i.e. is clamped to the first limiting block 131, the sealing disc 400 is reset to make the inside of the valve body 100 in the closed state.
Example 2
As shown in fig. 7 to 9, the present embodiment is different from embodiment 1 in that the valve body 100 adopts a split valve body structure, and the specific structure thereof is set as follows: the valve comprises a second valve body 600 and a second valve seat 700 which are connected in a pressing mode, wherein a pressing cylinder 620 is fixedly arranged at the bottom of the second valve body 600 in an integrated mode, and the pressing cylinder 620 is embedded into the top of the second valve seat 700 and is connected with the top in a pressing mode. The middle of the second valve body 600 is provided at the outer circumferential side thereof with a middle flange 610, and the top of the second valve seat 700 is tightly pressed against the middle flange 610 of the second valve body 600. The second valve seat 700 is provided at the bottom thereof with a second bottom flange 710, and the lower end surface of the second bottom flange 710 is heat sealed at the discharge port of the liquid packing bag. The middle flange 610 of the second valve body 600 is further provided with a positioning groove 611, which facilitates the positioning of the apparatus when the second valve body 600 is pressed against the second valve seat 700 by the pressing apparatus, so that the pressing direction of the packages is consistent.
Example 3
The internally-clamped open-type liquid discharge butterfly valve comprises the internally-clamped open-type liquid discharge butterfly valve in the embodiment 1, wherein a valve body 100 is of an integrated valve body structure, the raw material of the integrated valve body is polyethylene, and the integrated valve body accounts for 405 parts by weight; the valve cover 200 comprises the following raw materials in parts by weight: 110 parts of polypropylene and 4.5 parts of color master batch; the raw material of the block cover 300 is polycarbonate, and the weight portion of the polycarbonate is 25 portions; the sealing disc 400 comprises the following raw materials in parts by weight: 34 parts of polyamide and 2.5 parts of color master batch; the handle 500 comprises the following raw materials in parts by weight: 34 parts of polyamide and 1.4 parts of color master batch.
The production method of the inner-clamping opening type liquid discharge butterfly valve comprises the following steps:
1) mixing raw materials, setting heating temperature
a. Uniformly mixing the raw materials of the valve cover 200 according to the weight part ratio, adding the mixture into a hopper of a first injection molding machine, and setting the temperature of a heating section of the first injection molding machine to be 180-220 ℃;
b. adding the raw materials of the integrated valve body into a hopper of a second injection molding machine according to the parts by weight, and setting the temperature of a heating section of the second injection molding machine to be 180-200 ℃;
c. uniformly mixing the raw materials of the handle 500 according to the weight part ratio, adding the mixture into a hopper of a fourth injection molding machine, and setting the temperature of a heating section of the fourth injection molding machine to be 240-280 ℃;
d. uniformly mixing the raw materials of the sealing disc 400 according to the weight part ratio, adding the mixture into a hopper of a fifth injection molding machine, and setting the temperature of a heating section of the fifth injection molding machine to be 240-280 ℃;
e. adding the raw materials of the blocking cover 300 into a hopper of a sixth injection molding machine according to the parts by weight, and setting the temperature of a heating section of the sixth injection molding machine to be 250-280 ℃;
2) injection moulding
a. For the first injection molding machine, 900kg/cm was used for the first section2The injection pressure and the injection speed of 35mm/s are respectively controlled, the injection time is 5 seconds, and the injection glue amount is 70 percent of the product; the second stage adopts 600kg/cm2The injection pressure and the injection speed of 30mm/s are respectively controlled, the injection time is 2 seconds, the injection glue amount reaches 100 percent of the product, the molten granules enter a die cavity, the pressure is maintained for 4 seconds, and the cooling molding is carried out for 10 seconds;
b. for the second injection molding machine, 1100kg/cm was used for the first stage2The injection pressure and the injection speed of 35mm/s are respectively controlled, the injection time is 5 seconds, and the injection glue amount reaches 90 percent of the product; the second stage adopts 1000kg/cm2The injection pressure and the injection speed of 22mm/s are controlled, the injection time is 2 seconds, the injection amount is up to 100 percent of the product, the molten granules enter a die cavity, the pressure is maintained for 4 seconds, and the cooling molding is carried out for 12 seconds;
c. for the fourth injection molding machine, 1100kg/cm was used for the first stage2The injection pressure and the injection speed of 30mm/s are respectively controlled, the injection time is 2 seconds, and the injection glue amount reaches 90 percent of the product; the second stage adopts 1000kg/cm2The injection pressure and the injection speed of 22mm/s are controlled, the injection time is 2 seconds, the injection amount is up to 100 percent of the product, the molten granules enter a die cavity, the pressure is maintained for 2 seconds, and the molten granules are cooled and molded for 10 seconds;
d. for the fifth injection molding machine, 1100kg/cm was used for the first stage2The injection pressure and the injection speed of 30mm/s are respectively controlled, the injection time is 2 seconds, and the injection glue amount reaches 90 percent of the product; the second stage adopts 1000kg/cm2The injection pressure and the injection speed of 22mm/s are controlled, the injection time is 2 seconds, the injection amount is up to 100 percent of the product, the molten granules enter a die cavity, the pressure is maintained for 2 seconds, and the molten granules are cooled and molded for 10 seconds;
e. for the sixth injection molding machine, 1100kg/cm was used for the first stage2The injection pressure and the injection speed of 32mm/s are respectively controlled, the injection time is 1 second, and the injection glue amount is up to 90 percent of the product; second stage of 1100kg/cm2The injection pressure and the injection speed of 22mm/s are controlled, the injection time is 2 seconds, the injection amount is up to 100 percent of the product, the molten granules enter a die cavity, the pressure is maintained for 2 seconds, and the molten granules are cooled and molded for 8 seconds;
3) demoulding
a. For a first injection molding machine, ejecting a product out of a mold cavity through an ejector pin under the pressure of 35 KN;
b. for the second injection molding machine, under the pressure of 40KN, ejecting the product out of the mold cavity through an ejector pin;
c. for the fourth injection molding machine, under the pressure of 18KN, ejecting the product out of the mold cavity through an ejector pin;
d. for a fifth injection molding machine, under the pressure of 25KN of ejection, ejecting the product out of the mold cavity through an ejector pin;
e. for the sixth injection molding machine, ejecting the product out of the mold through an ejector pin under the pressure of 18 KN;
4) assembled installation
a. Firstly, a second sealing ring 802 is sleeved on a second sealing groove of the sealing disc 400, and the sealing disc 400 is embedded into the valve body 100 in parallel with the radial plane of the valve body 100 and is connected with the positioning rotating shaft 110 of the valve body 100;
b. then, one end of the handle 500 is embedded and clamped in the bayonet 301 of the blocking cover 300, and the pin shaft 501 is inserted into the pin hole of the blocking cover 300 to limit the displacement of the handle 500;
c. then, the first sealing ring 801 is sleeved on the first sealing groove of the transmission rotating shaft 310, the blocking cover 300 is pressed into the annular boss 120 while the transmission rotating shaft 310 is transversely inserted into the valve body 100, and at this time, the first limiting block 131 and the second limiting block 132 of the limiting half ring 130 are both clamped with the limiting groove 302 of the blocking cover 300.
Example 4
The difference between this embodiment and embodiment 3 is that the valve body 100 is a split valve body structure, the split valve body is made of polyethylene as a raw material, the second valve body 600 is 408 parts by weight, and the second valve seat 700 is 120 parts by weight.
1) Mixing raw materials, setting heating temperature
a. Uniformly mixing the raw materials of the valve cover 200 according to the weight part ratio, adding the mixture into a hopper of a first injection molding machine, and setting the temperature of a heating section of the first injection molding machine to be 180-220 ℃;
b. adding the raw materials of the split valve body into a hopper of a second injection molding machine according to the parts by weight, and setting the temperature of a heating section of the second injection molding machine to be 180-200 ℃;
c. adding the raw materials of the second valve seat 700 into a hopper of a third injection molding machine according to the parts by weight, and setting the temperature of a heating section of the third injection molding machine to be 180-;
d. uniformly mixing the raw materials of the handle 500 according to the weight part ratio, adding the mixture into a hopper of a fourth injection molding machine, and setting the temperature of a heating section of the fourth injection molding machine to be 240-280 ℃;
e. uniformly mixing the raw materials of the sealing disc 400 according to the weight part ratio, adding the mixture into a hopper of a fifth injection molding machine, and setting the temperature of a heating section of the fifth injection molding machine to be 240-280 ℃;
f. adding the raw materials of the blocking cover 300 into a hopper of a sixth injection molding machine according to the parts by weight, and setting the temperature of a heating section of the sixth injection molding machine to be 250-280 ℃;
2) injection moulding
a. For the first injection molding machine, 900kg/cm was used for the first section2The injection pressure and the injection speed of 35mm/s are respectively controlled, the injection time is 5 seconds, and the injection glue amount is 70 percent of the product; the second stage adopts 600kg/cm2The injection pressure and the injection speed of 30mm/s are respectively controlled, the injection time is 2 seconds, the injection glue amount reaches 100 percent of the product, the molten granules enter a die cavity, the pressure is maintained for 4 seconds, and the cooling molding is carried out for 10 seconds;
b. for the second injection molding machine, 1100kg/cm was used for the first stage2The injection pressure and the injection speed of 35mm/s are respectively controlled, the injection time is 5 seconds, and the injection glue amount reaches 90 percent of the product; the second stage adopts 1000kg/cm2The injection pressure and the injection speed of 22mm/s are controlled, the injection time is 2 seconds, the injection amount is up to 100 percent of the product, the molten granules enter a die cavity, the pressure is maintained for 4 seconds, and the cooling molding is carried out for 12 seconds;
c. for the third injection molding machine, 1100kg/cm was used for the first stage2The injection pressure and the injection speed of 35mm/s are respectively controlled, the injection time is 2 seconds, and the injection glue amount reaches 90 percent of the product; the second stage adopts 1100kg/cm2The injection pressure and the injection speed of 22mm/s are respectively set, the injection time is 1 second, the injection amount is 100 percent of the product, the molten granules enter a die cavity, the pressure is maintained for 4 seconds, and the molten granules are cooled and molded for 8 seconds;
d. for the fourth injection molding machine, 1100kg/cm was used for the first stage2The injection pressure and the injection speed of 30mm/s are respectively controlled, the injection time is 2 seconds, and the injection glue amount reaches 90 percent of the product; the second stage adopts 1000kg/cm2The injection pressure and the injection speed of 22mm/s are controlled, the injection time is 2 seconds, the injection amount is up to 100 percent of the product, the molten granules enter a die cavity, the pressure is maintained for 2 seconds, and the molten granules are cooled and molded for 10 seconds;
e. for the fifth injection molding machine, 1100kg/cm was used for the first stage2The injection pressure and the injection speed of 30mm/s are respectively controlled, the injection time is 2 seconds, and the injection glue amount reaches 90 percent of the product; the second stage adopts 1000kg/cm2The injection pressure and the injection speed of 22mm/s are controlled, the injection time is 2 seconds, the injection amount is up to 100 percent of the product, the molten granules enter a die cavity, the pressure is maintained for 2 seconds, and the molten granules are cooled and molded for 10 seconds;
f. for the sixth injection molding machine, 1100kg/cm was used for the first stage2The injection pressure and the injection speed of 32mm/s are respectively controlled, the injection time is 1 second, and the injection glue amount is up to 90 percent of the product; second stage of 1100kg/cm2The injection pressure and the injection speed of 22mm/s are controlled, the injection time is 2 seconds, the injection amount is up to 100 percent of the product, the molten granules enter a die cavity, the pressure is maintained for 2 seconds, and the molten granules are cooled and molded for 8 seconds;
3) demoulding
a. For the first injection molding machine, under the pressure of ejection of 32KN, ejecting the product out of the mold cavity through an ejector pin;
b. for the second injection molding machine, under the pressure of 45KN, ejecting the product out of the mold cavity through an ejector pin;
c. for the third injection molding machine, under the pressure of 45KN, ejecting the product out of the mold cavity through an ejector pin;
d. for the fourth injection molding machine, under the pressure of 16KN, ejecting the product out of the mold cavity through an ejector pin;
e. for the fifth injection molding machine, under the pressure of 22KN, ejecting the product out of the mold cavity through an ejector pin;
f. for the sixth injection molding machine, ejecting the product out of the mold through an ejector pin under the pressure of 18 KN;
4) assembled installation
a. Firstly, the second valve body 600 is connected to the second valve seat 700 in a pressing manner, then the second sealing ring 802 is sleeved on the second sealing groove of the sealing disc 400, and the sealing disc 400 is embedded into the valve body 100 in a manner that the sealing disc 400 is parallel to the radial plane of the valve body 100 and is connected with the positioning rotating shaft 110 of the valve body 100;
b. then, one end of the handle 500 is embedded and clamped in the bayonet 301 of the blocking cover 300, and the pin shaft 501 is inserted into the pin hole of the blocking cover 300 to limit the displacement of the handle 500;
c. then, the first sealing ring 801 is sleeved on the first sealing groove of the transmission rotating shaft 310, the transmission rotating shaft 310 is transversely inserted into the valve body 100, the plugging cover 300 is pressed into the annular boss 120, and the first limiting block 131 and the second limiting block 132 of the limiting half ring 130 are clamped with the limiting groove 302 of the plugging cover 300;
d. finally, the handle 500 is clamped on the T-shaped positioning block 140, and the disposable lead seal ring 504 passes through the lead seal hole 503 of the handle 500 and one of the anti-theft holes 202 of the valve cover 200 respectively to close the open end of the disposable lead seal ring 504.
Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; while the utility model has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.
Claims (10)
1. The utility model provides an inside callipers open-type liquid packaging bag flowing back butterfly valve which characterized in that includes:
valve body (100): the valve body (100) is of a hollow cylindrical structure, the bottom end of the valve body is thermally sealed at a discharge port of the liquid packaging bag, a positioning rotating shaft (110) is fixedly arranged on the inner side wall of the valve body (100), and an annular boss (120) is fixedly arranged on the outer side wall of the valve body (100);
valve cover (200): the valve cover (200) is in threaded connection with the top end of the valve body (100);
closure cap (300): the blocking cover (300) is clamped on the annular boss (120), one side of the blocking cover (300) facing the valve body (100) is fixedly provided with a transmission rotating shaft (310), and the other side is provided with a bayonet (301);
seal disc (400): the sealing disc (400) is transversely arranged at the upper end inside the valve body (100), and the bottom of the sealing disc (400) is simultaneously connected with the positioning rotating shaft (110) and the transmission rotating shaft (310);
handle (500): the one end of handle (500) is inlayed and is established the joint in bayonet socket (301) of blanking cover (300) and rotate through round pin axle (501) and connect on blanking cover (300) for handle (500) can rotate and accomodate in valve gap (200) below around round pin axle (501).
2. The liquid discharge butterfly valve for the liquid packaging bag with the internal clamping opening as claimed in claim 1, wherein a first lifting lug (410) and a second lifting lug (420) are oppositely arranged at the bottom of the sealing disc (400) along the radial direction of the sealing disc, and the first lifting lug (410) is provided with a positioning hole (411) matched with the circumference of the positioning rotating shaft (110);
one end of the transmission rotating shaft (310) far away from the blocking cover (300) is fixedly provided with a transmission strip (311) along the radial direction of the peripheral side of the blocking cover, and the second lifting lug (420) is provided with a transmission hole (421) matched with the peripheral diameter of the transmission strip (311).
3. The liquid discharge butterfly valve for the liquid packaging bag with the internal clamping opening as claimed in claim 1, wherein two positioning clamping blocks (320) are oppositely arranged on the periphery of the blocking cover (300), an arc-shaped groove (121) is formed in the annular boss (120), and the width direction of the arc-shaped groove (121) is matched with the thickness of the positioning clamping blocks (320);
the annular boss (120) transversely extends to form a limiting half ring (130), a first limiting block (131) and a second limiting block (132) are integrally arranged on the inner side wall of the limiting half ring (130), a plurality of limiting grooves (302) are formed in the outer side wall of the blocking cover (300), and the circumferential diameters of the first limiting block (131) and the second limiting block (132) are matched with the limiting grooves (302).
4. The liquid discharge butterfly valve for the liquid packaging bag with the opening type inner card as claimed in claim 1, wherein a rotation stopping groove (303) is further formed in a side, facing away from the valve body (100), of the blocking cover (300), and the rotation stopping groove (303) is communicated with the bayonet (301).
5. The liquid discharge butterfly valve for liquid packaging bags with internal clamping opening as claimed in claim 1, wherein the end of the transmission shaft (310) close to the plug cover (300) is provided with a first sealing groove on the periphery, and a first sealing ring (801) is arranged in the first sealing groove.
6. The liquid discharge butterfly valve for the liquid packaging bag with the internal clamping opening as claimed in claim 1, wherein a second sealing groove is formed on the periphery of the sealing disc (400), and a second sealing ring (802) is embedded in the second sealing groove.
7. The liquid discharge butterfly valve for the liquid packaging bag with the internal clamping opening as claimed in claim 1, wherein a third sealing groove is formed in the top of the valve body (100), a third sealing ring (803) is embedded in the third sealing groove, an annular sealing rib (240) is fixedly arranged at the bottom of the valve cover (200), and the sealing rib is tightly abutted against the third sealing ring (803);
the valve cover (200) is symmetrically provided with two clamping holes (201), the bottom of the valve cover (200) is integrally provided with a first annular reinforcing rib (220) and a second annular reinforcing rib (230), and the first annular reinforcing rib (220) and the second annular reinforcing rib (230) are connected with the clamping holes (201) of the valve cover (200).
8. The liquid discharge butterfly valve for the liquid packaging bag with the internally-clamped opening type according to claim 1, wherein a T-shaped positioning block (140) is fixedly arranged on the periphery of the valve body (100), and the T-shaped positioning block is in clamping fit with a square groove (502) of the handle (500); one end, far away from the pin shaft (501), of the handle (500) is provided with a lead sealing hole (503), the edge of the valve cover (200) is provided with a plurality of anti-theft holes (202) at equal intervals, and a disposable lead sealing ring (504) penetrates through the lead sealing hole (503) and one of the anti-theft holes (202) simultaneously.
9. The liquid discharge butterfly valve for liquid packaging bag with an inside-clamping opening type according to claim 1, wherein the valve body (100) is of an integrated valve body structure or a split valve body structure,
the integral valve body structure is set as follows: the liquid packaging bag comprises a first valve body and a first valve seat which are integrally formed in an injection molding mode, wherein a first bottom flange (150) is arranged at the bottom of the first valve seat, and the lower end face of the first bottom flange (150) is thermally sealed at a discharge port of the liquid packaging bag;
the split valve body structure is set as follows: including second valve body (600) and second valve seat (700) that the pressfitting is connected, the bottom pressfitting of second valve body (600) is connected in the top of second valve seat (700), be provided with middle part flange (610) on second valve body (600), middle part flange (610) of second valve body (600) are tightly supported at second valve seat (700) top, the bottom of second valve seat (700) is provided with second bottom flange (710), the lower terminal surface heat seal of second bottom flange (710) is in the discharge gate department of liquid packaging bag.
10. The liquid bag butterfly valve as claimed in claim 9, wherein the central flange (610) has a positioning groove (611).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122752502.8U CN216045503U (en) | 2021-11-10 | 2021-11-10 | Liquid drainage butterfly valve with internal clamping opening type liquid packaging bag |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122752502.8U CN216045503U (en) | 2021-11-10 | 2021-11-10 | Liquid drainage butterfly valve with internal clamping opening type liquid packaging bag |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216045503U true CN216045503U (en) | 2022-03-15 |
Family
ID=80552906
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122752502.8U Active CN216045503U (en) | 2021-11-10 | 2021-11-10 | Liquid drainage butterfly valve with internal clamping opening type liquid packaging bag |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216045503U (en) |
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2021
- 2021-11-10 CN CN202122752502.8U patent/CN216045503U/en active Active
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