CN114279534A - Weighing device for pre-expander - Google Patents
Weighing device for pre-expander Download PDFInfo
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- CN114279534A CN114279534A CN202111583500.9A CN202111583500A CN114279534A CN 114279534 A CN114279534 A CN 114279534A CN 202111583500 A CN202111583500 A CN 202111583500A CN 114279534 A CN114279534 A CN 114279534A
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- baffle
- weighing
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- baffles
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Abstract
The invention relates to a pre-expander, in particular to a weighing device for the pre-expander. The utility model provides a weighing device for prefoamer, includes the weighing plate and encloses the fender, the bounding wall is to enclose and closes the shape, the weighing plate constitutes with enclosing the fender and is used for holding the material chamber of material, and the weighing plate supports at the weighing sensor upside, the weighing plate is equipped with the opening that runs through from top to bottom so that material chamber and prefoamer inner chamber communicate, the opening part is equipped with and is used for sealing open-ended seal assembly, seal assembly overlap joint has the actuating mechanism who is used for realizing the seal assembly switching. The invention has the advantage that the weighed plastic particles can completely enter the pre-foaming machine so as to avoid plastic particle waste.
Description
Technical Field
The invention relates to a pre-expander, in particular to a weighing device for the pre-expander.
Background
The prefoamer is a device for expanding expandable beads by heating, and is used for heating, softening and expanding plastic particles into foam particles so as to achieve the purposes of making the density of the product lower during molding and reducing density gradient so as to make the foamed product uniform. By weighing the plastic particles during the pre-expansion operation, the number of beads is stabilized by reducing faulty operations, and a pre-expander with a weighing function is generally used.
The existing pre-foaming machine with weighing function is generally used for pouring plastic particles into a container in the using process, the container is reversely rotated after being weighed, the plastic particles are poured into the pre-foaming machine, when the quantity of the plastic particles in the container is large, the particles in the pouring process of the container easily overflow from the container, the error between the quantity of the plastic particles poured into the container and the preset quantity is large, and the control is not accurate.
Disclosure of Invention
The invention aims to provide a weighing device for a pre-foaming machine, which can ensure that the weighed plastic particles can completely enter the pre-foaming machine.
In order to achieve the purpose, the invention adopts the following technical scheme: the utility model provides a weighing device for prefoamer, includes the weighing plate and encloses the fender, the bounding wall is to enclose and closes the shape, the weighing plate constitutes with enclosing the fender and is used for holding the material chamber of material, and the weighing plate supports at the weighing sensor upside, the weighing plate is equipped with the opening that runs through from top to bottom so that material chamber and prefoamer inner chamber communicate, the opening part is equipped with and is used for sealing open-ended seal assembly, seal assembly overlap joint has the actuating mechanism who is used for realizing the seal assembly switching.
Now pour the plastic granules (material) into the material chamber, after finding through weighing sensor that the plastic granules in the material chamber reaches predetermined weight, stop feeding, later open the closure assembly through actuating mechanism to the unblock to the opening, the plastic granules gets into the inner chamber of prefoamer under the action of gravity afterwards. If part of plastic particles do not enter the inner cavity of the pre-foaming machine, the plastic particles can be manually swept into the inner cavity of the pre-foaming machine; when the plastic particles which do not enter the inner cavity of the pre-foaming machine are few, a small amount of plastic particles can be allowed to remain in the material cavity due to the allowance of errors. The use mode of the weighing sensor and the fixing mode of the weighing sensor and the weighing plate can adopt any one mode in the prior art; the weighing sensor can be used together with an electronic display screen, a warning light, a whistle device and the like. Wherein the weight can be borne by the measuring plate together with the enclosure and the closure assembly. Wherein, owing to enclose the open-ended setting of fender and weighing plate, can avoid plastic granules to jump out or overflow from the material intracavity after being weighed. The plastic particle weighing device has the advantages that plastic particles can be weighed, the plastic particles can be prevented from overflowing from the material cavity after being weighed, waste of the plastic particles is avoided, and the cleaning amount is reduced.
Preferably, the seal assembly includes two at least baffles, the baffle includes a fixed stop and at least one adjustable fender, both ends are stiff end and expansion end respectively inside and outside the adjustable fender, adjustable fender's stiff end can use vertical axis as the center rotation, actuating mechanism includes the dwang with the adjustable fender linkage, works as the dwang uses vertical axis is when the center rotates, adjustable fender's expansion end removes and constitutes and has the space or seal that drops the opening.
The height space of the pre-expander is more compact through the translational baffle, and the transverse space of the pre-expander is more compact through the rotation of the baffle, so that the occupied area of the pre-expander is reduced.
Preferably, the number of the movable baffle plates is at least two, one movable baffle plate of every two adjacent movable baffle plates is provided with an arc-shaped guide groove, the other movable baffle plate of every two adjacent movable baffle plates is provided with a linkage protrusion extending into the guide groove, and the linkage protrusion extends vertically. The arrangement is such that only one movable baffle plate is required to be fixed with the rotating rod, and the rotation of all the movable baffle plates can be realized.
Preferably, the sealing assembly is composed of a plurality of baffle groups, each baffle group is provided with a fixed baffle and at least one movable baffle, the fixed baffles are arranged radially and annularly at uniform intervals, and the number of the rotating rods is the same as that of the baffle groups; or the number of the rotating rods is one, and each baffle plate group is internally provided with a movable baffle plate which is fixed with the rotating rods. The arrangement is such that the opening can be unblocked with a small pivoting angle of the swivelling lever.
Preferably, the baffles are arranged in a fan shape, and one baffle of two adjacent baffles is provided with an accommodating cavity for accommodating the other baffle of the two adjacent baffles. When one baffle enters the containing cavity of the other baffle, plastic particles on the upper side of the baffle can be pushed away. Wherein, hold the chamber through the setting to can carry out spacing from top to bottom to the baffle.
As preferred, the dwang with the coaxial setting of opening, adjustable fender's outer end is the expansion end, adjustable fender's inner is the stiff end, the dwang upper end extends to the material chamber outside and links with driving motor's output, or the dwang upper end extends to the material chamber outside and is fixed with twist grip. The arrangement ensures that only one rotating rod is needed, the structure of the invention is more compact, and the occupied space of the rotating rod in the material cavity is smaller. Wherein, when dwang and driving motor linkage, because can shake when driving motor uses, the vibrations power can be through enclosing fender or dwang transmission to baffle department, enables to be located the plastic granules of baffle upside and removes and all fall into in the prefoaming machine inner chamber under the vibrations power effect.
Preferably, the inner wall of the opening of the weighing plate or the inner wall of the enclosure is provided with positioning grooves for positioning the movable baffle, and part or all of the positioning grooves are connected end to form a sawtooth groove structure. Through setting up the constant head tank in order to avoid the adjustable fender excessive movement to guarantee the adjustable fender to the opening or enclose the closure that keeps off the inner chamber.
Preferably, a guide block is fixed on the outer side of the enclosure, the guide block is supported on the upper side of the elastic piece, and the closing assembly is close to the inner wall of the enclosure. Through setting up the elastic component to the decline of enclosing fender and closing the subassembly cushions, in order to avoid weighing plate atress suddenly, so that weighing sensor measurement is inaccurate.
Preferably, the two opposite sides of the enclosure are provided with the guide blocks, the guide blocks are arranged on the guide rods which are vertically arranged in a sliding mode, and the elastic pieces are springs and sleeved outside the guide rods. Through setting up two at least guide blocks to the up-and-down that makes the fender that encloses more stably moves.
The invention has the advantage that the weighed plastic particles can completely enter the pre-foaming machine so as to avoid plastic particle waste.
Drawings
FIG. 1 is a schematic structural diagram of the present invention;
FIG. 2 is a cross-sectional view of the present invention;
FIG. 3 is a schematic view of the present invention showing a closed opening at the weigh plate;
FIG. 4 is a schematic diagram of the present invention showing the configuration of the weighing plate with the opening open.
Detailed Description
The invention is further described below with reference to the figures and specific embodiments.
As shown in fig. 1 and 2, the weighing device for the pre-expander comprises a weighing plate 1 and a surrounding baffle 2, wherein the surrounding plate 2 is in a surrounding shape, the weighing plate 1 and the surrounding baffle 2 form a material cavity for containing materials, the weighing plate 2 is supported on the upper side of a weighing sensor (not shown in the figure), an opening which penetrates through the middle of the weighing plate 1 up and down to enable the material cavity to be communicated with an inner cavity of the pre-expander 100 is formed in the middle of the weighing plate 1, a sealing component for sealing the opening is arranged on the upper side of the weighing plate 1 close to the opening, a driving mechanism for achieving opening and closing of the sealing component is matched with the sealing component, the driving mechanism and the surrounding baffle 2 are relatively fixed, and the driving mechanism comprises a driving motor 31. Wherein, driving motor 31 is servo motor, and driving motor 31 output shaft is fixed with the dwang 32 of vertical setting, and dwang 32 and the coaxial setting of opening, dwang 32 upper end and driving motor 31 all are located the material chamber outside, and driving motor 31 outside cover is equipped with solid fixed ring 311, is connected with connecting rod 312 between solid fixed ring 311 and driving motor 31, and the relative both sides of solid fixed ring 311 all through connecting piece 313 with enclose keep off 2 fixed or support in enclosing and keep off 2 tops.
As shown in fig. 2 to 4, the sealing assembly is composed of a plurality of baffle groups, each baffle group is composed of a plurality of baffles and has a fixed baffle 41 and at least three movable baffles 42, the outer end of each movable baffle 42 is a movable end, the inner end of each movable baffle 42 is a fixed end and can rotate around a vertical axis, the fixed end of each movable baffle 42 is linked with the corresponding rotating rod 32, the vertical axis is the axis of the corresponding rotating rod 32, and when the corresponding rotating rod 32 rotates around the vertical axis under the action of the driving motor 31, the movable end of each movable baffle 42 moves to form a falling space 40 or seal the opening.
One baffle plate in two adjacent baffle plates is provided with an arc-shaped guide groove 421, the other baffle plate in two adjacent baffle plates is provided with a linkage protrusion 422 extending into the guide groove 421, and the linkage protrusion 422 extends vertically; the fixed baffle 41 is only provided with a guide groove, one movable baffle is only provided with a linkage bulge, and the other movable baffles are provided with both a guide groove and a linkage bulge. Wherein, the baffle all is fan-shaped setting, and a baffle in two adjacent baffles is formed with the chamber that holds that is arranged in holding another baffle in two adjacent baffles.
All the fixed baffles 41 of the plurality of baffle groups are arranged in a radial shape and are uniformly spaced in an annular shape, and when the opening is closed, that is, when all the baffles of the baffle groups are unfolded, the fixed end of the movable baffle 42 farthest from the fixed baffle 41 is fixed with the rotating rod 32. Wherein, other movable baffles 42 can be hinged with the rotating rod 32 or can be directly sleeved outside the rotating rod; when the two ends of the movable baffle are both provided with the guide grooves or the linkage bulges, the movable baffle in the middle can be in clearance fit with the rotating rod; or a groove can be arranged on the outer wall of the rotating rod, so that part of the movable baffle plate is positioned in the groove. In order to facilitate the dropping of the plastic particles (materials), a taper sleeve 321 which is thin at the upper part and thick at the lower part can be arranged at the joint of the rotating rod 32 and the fixed baffle plate 41, the lower end of the taper sleeve 321 is fixed with the fixed baffle plate 41, a gap between the taper sleeve 321 and the rotating rod 32 is smaller than the minimum width of the plastic particles, and the width of the guide groove 421 is smaller than the minimum width of the plastic particles.
Enclose and keep off 2 inner walls and have the constant head tank 21 that is used for fixing a position movable baffle 42, all constant head tanks end to end connection are in order to constitute the sawtooth groove structure, fixed stop 41 with enclose 2 inner walls fixed, movable baffle 42 outer end with enclose 2 inner walls clearance fit that keep off. Enclose and keep off 2 relative both sides all be fixed with guide block 22, guide block 22 supports in the upside of elastic component 23, and guide block 22 sliding fit is on vertical guide bar 24 that sets up, and elastic component 23 is the spring and overlaps and establish outside guide bar 24, and guide bar 24 is fixed in casing 25, and casing 25 is equipped with and prevents changeing spacing bar groove 26 to the guide block.
Before the plastic particle weighing device is used, a fixed amount a1 of plastic particles are weighed by a conventional weighing device, then the plastic particles with known weight are poured into the material cavity, the plastic particles drive the sealing component and the enclosure to move downwards, the enclosure is supported on the weighing plate, and at the moment, a specific value a2 is obtained by the conventional weighing device such as a weighing sensor and a display screen. Whether the amount of the poured plastic particles is enough is judged by judging whether the poured plastic particles reach a 2.
The invention has the advantage that the weighed plastic particles can completely enter the pre-foaming machine so as to avoid plastic particle waste.
Claims (9)
1. The utility model provides a weighing device for prefoamer, its characterized in that includes the weighing plate and encloses the fender, the bounding wall is to enclose and closes the shape, the weighing plate with enclose and keep off and constitute the material chamber that is used for holding the material, the weighing plate supports at the weighing sensor upside, the weighing plate is equipped with and runs through the opening that so that material chamber and prefoamer inner chamber communicate from top to bottom, the opening part is equipped with and is used for sealing open-ended seal assembly, seal assembly is lapped and is furnished with the actuating mechanism who is used for realizing the seal assembly switching, actuating mechanism with enclose fender relatively fixed.
2. The weighing device for the pre-expander according to claim 1, wherein the closing assembly comprises at least two baffles, the baffles comprise a fixed baffle and at least one movable baffle, the inner end and the outer end of the movable baffle are respectively a fixed end and a movable end, the fixed end of the movable baffle can rotate around a vertical axis, the driving mechanism comprises a rotating rod linked with the movable baffle, and when the rotating rod rotates around the vertical axis, the movable end of the movable baffle moves to form a falling space or close the opening.
3. The weighing device for the pre-expander according to claim 2, wherein the number of the movable baffles is at least two, one of two adjacent movable baffles of the at least three baffles is provided with an arc-shaped guide groove, and the other movable baffle of the two adjacent movable baffles is provided with a linkage protrusion extending into the guide groove, and the linkage protrusion extends vertically.
4. The weighing device for the prefoamer of claim 3, wherein the closing assembly is composed of a plurality of baffle groups, each baffle group is provided with a fixed baffle and at least one movable baffle, the fixed baffles are uniformly arranged in a radial and annular manner at intervals, and the number of the rotating rods is the same as that of the baffle groups; or the number of the rotating rods is one, and each baffle plate group is internally provided with a movable baffle plate which is fixed with the rotating rods.
5. The weighing device for the pre-expander according to claim 2, 3 or 4, wherein the baffles are arranged in a fan shape, and one of the two adjacent baffles is formed with a receiving cavity for receiving the other of the two adjacent baffles.
6. The weighing device for the prefoamer according to claim 2, wherein the rotating rod is coaxially arranged with the opening, the outer end of the movable baffle is a movable end, the inner end of the movable baffle is a fixed end, the upper end of the rotating rod extends to the outer side of the material cavity and is linked with the output end of the driving motor, or the upper end of the rotating rod extends to the outer side of the material cavity and is fixed with the rotating handle.
7. The weighing device for the pre-expander according to claim 4, wherein the inner wall of the opening of the weighing plate or the inner wall of the enclosure is provided with positioning grooves for positioning the movable baffle, and part or all of the plurality of positioning grooves are connected end to form a sawtooth groove structure.
8. The weighing apparatus of claim 1, wherein a guide block is fixed to an outer side of the enclosure, the guide block is supported on an upper side of the elastic member, and the closure assembly is adjacent to an inner wall of the enclosure.
9. The weighing device for the pre-expander according to claim 8, wherein the guide blocks are arranged on two opposite sides of the enclosure, the guide blocks are slidably arranged on the vertically arranged guide rods, and the elastic member is a spring and is sleeved outside the guide rods.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111583500.9A CN114279534A (en) | 2021-12-22 | 2021-12-22 | Weighing device for pre-expander |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111583500.9A CN114279534A (en) | 2021-12-22 | 2021-12-22 | Weighing device for pre-expander |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114279534A true CN114279534A (en) | 2022-04-05 |
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ID=80873936
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111583500.9A Pending CN114279534A (en) | 2021-12-22 | 2021-12-22 | Weighing device for pre-expander |
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| Country | Link |
|---|---|
| CN (1) | CN114279534A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6368701B1 (en) * | 1997-11-26 | 2002-04-09 | Idemttsu Petrochemical Co., Ltd. | Fiber-reinforced resin molded article and method of manufacturing the same |
| CN108789996A (en) * | 2018-05-16 | 2018-11-13 | 甘春勇 | A kind of preparation method of eps foam packing case |
| CN208841684U (en) * | 2018-09-21 | 2019-05-10 | 青岛英顺包装制品有限公司 | A kind of foam-plastic pre-foaming machine feed hopper |
| CN210217404U (en) * | 2019-05-29 | 2020-03-31 | 郑州逸美智能科技有限公司 | Intelligent door lock with dual authentication functions |
| CN111906988A (en) * | 2020-07-16 | 2020-11-10 | 苏州明睿威尔新型材料有限公司 | Pre-foaming uniform EPS intermittent pre-foaming machine |
| CN212888603U (en) * | 2020-07-20 | 2021-04-06 | 浙江规矩塑料机械有限公司 | Feeding device of full-automatic intermittent pre-expander |
-
2021
- 2021-12-22 CN CN202111583500.9A patent/CN114279534A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6368701B1 (en) * | 1997-11-26 | 2002-04-09 | Idemttsu Petrochemical Co., Ltd. | Fiber-reinforced resin molded article and method of manufacturing the same |
| CN108789996A (en) * | 2018-05-16 | 2018-11-13 | 甘春勇 | A kind of preparation method of eps foam packing case |
| CN208841684U (en) * | 2018-09-21 | 2019-05-10 | 青岛英顺包装制品有限公司 | A kind of foam-plastic pre-foaming machine feed hopper |
| CN210217404U (en) * | 2019-05-29 | 2020-03-31 | 郑州逸美智能科技有限公司 | Intelligent door lock with dual authentication functions |
| CN111906988A (en) * | 2020-07-16 | 2020-11-10 | 苏州明睿威尔新型材料有限公司 | Pre-foaming uniform EPS intermittent pre-foaming machine |
| CN212888603U (en) * | 2020-07-20 | 2021-04-06 | 浙江规矩塑料机械有限公司 | Feeding device of full-automatic intermittent pre-expander |
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