CN112721311A - Double-knurling wheel type special-shaped cup bottom knurling mechanism of paper cup forming machine - Google Patents

Double-knurling wheel type special-shaped cup bottom knurling mechanism of paper cup forming machine Download PDF

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Publication number
CN112721311A
CN112721311A CN202011605371.4A CN202011605371A CN112721311A CN 112721311 A CN112721311 A CN 112721311A CN 202011605371 A CN202011605371 A CN 202011605371A CN 112721311 A CN112721311 A CN 112721311A
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CN
China
Prior art keywords
knurling
cup bottom
cup
wheel seat
knurled
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Pending
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CN202011605371.4A
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Chinese (zh)
Inventor
吴接军
林晓峰
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Wenzhou Topuno Machinery Co ltd
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Wenzhou Topuno Machinery Co ltd
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Priority to CN202011605371.4A priority Critical patent/CN112721311A/en
Publication of CN112721311A publication Critical patent/CN112721311A/en
Pending legal-status Critical Current

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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B31MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31BMAKING CONTAINERS OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B50/00Making rigid or semi-rigid containers, e.g. boxes or cartons
    • B31B50/74Auxiliary operations
    • B31B50/88Printing; Embossing
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B31MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31BMAKING CONTAINERS OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B50/00Making rigid or semi-rigid containers, e.g. boxes or cartons
    • B31B50/006Controlling; Regulating; Measuring; Improving safety
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B31MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31BMAKING CONTAINERS OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B2105/00Rigid or semi-rigid containers made by assembling separate sheets, blanks or webs
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B31MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31BMAKING CONTAINERS OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B2110/00Shape of rigid or semi-rigid containers

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Abstract

The invention relates to a double-knurling wheel type special-shaped cup bottom knurling mechanism of a paper cup forming machine, which comprises a knurling mold base, a cup bottom knurling mold arranged on the knurling mold base and provided with an opening cavity matched with the shape of the cup bottom, wherein the other end of the cup bottom knurling mold base opposite to the knurling mold base is formed into an installation end used for installing the knurling mold base on a knurling lifting seat, a knurling installation seat is sleeved at the installation end, a knurling rotating shaft penetrates through the knurling mold base, a knurling gear is arranged in the middle of the knurling rotating shaft, one end of the knurling rotating shaft, which is close to the cup bottom knurling mold, is provided with knurling wheels which are oppositely arranged, the double-knurling wheel type special-shaped cup bottom knurling mechanism also comprises knurling wheel seats which are oppositely and alternately arranged, and the other ends of the two knurling: the depth of the knurling is the same, so that the sealing performance of each part of the bottom of the special-shaped cup after knurling is consistent, two times of knurling are performed on the bottom of the cup in the single knurling action, and the sealing effect of the bottom of the cup is greatly improved.

Description

Double-knurling wheel type special-shaped cup bottom knurling mechanism of paper cup forming machine
Technical Field
The invention relates to a special-shaped cup bottom knurling mechanism of a paper cup forming machine, in particular to a double-knurling wheel type special-shaped cup bottom knurling mechanism of the paper cup forming machine.
Background
The traditional paper cup forming machine mainly comprises a machine body, a cup body forming mechanism arranged on the machine body, a transfer turntable connected with the cup body forming mechanism, a cup bottom conveying mechanism arranged along the transfer turntable in sequence, a combination mechanism of the cup body and a quilt bottom, a heating mechanism, a bottom folding mechanism, a knurling mechanism and a flanging mechanism.
In the production process of paper cups and paper bowls, knurling operation on the bottoms of the paper cups and the paper bowls needs to be carried out, the knurling operation is completed through a cup bottom knurling mechanism, in the prior art, the cup bottom knurling is difficult to realize for the paper cups and the paper bowls in square shapes (the square does not refer to a specific quadrangle and can be a hexagon or other polygons), namely, the square cup bottom knurling has a larger technical bias, therefore, the prior art generally adopts an expansion-compression molding mode, namely, the bottom is pressed twice through the bottom of the square cup, namely, the bottom is pressed through the corner part and the bottom is pressed through the straight edge, the bottom pressing type square cup solves the problem of automatic bottom pressing of the square cup, has more overlapped parts and good bottom sealing effect, but the production efficiency is low, the defective products are more, the production process is difficult to control, and this kind of mode can only realize the blank pressing, and not the knurling, and the leakproofness is very poor compared with the knurling mode in the pressfitting mode.
But also rarely adopts a knurling mode, such as CN: 100462221C, the patent name "knurling device at the bottom of square paper cup of paper cup forming machine", but the proposal has many disadvantages and needs to be improved urgently.
Disclosure of Invention
The technical problem to be solved by the present invention is to solve the above-mentioned deficiencies of the prior art,
provides a double-knurling wheel type special-shaped cup bottom knurling mechanism of a paper cup forming machine.
In order to achieve the purpose, the invention provides the following technical scheme: double-knurling wheel type special-shaped cup bottom knurling mechanism of paper cup forming machine, including the knurling die holder, install the cup bottom knurling mould of establishing with paper cup bottom shape adaptation opening chamber on the knurling die holder, the other end formation of the relative installation cup bottom knurling mould of knurling die holder is used for installing the installation end at the knurling lift seat with the knurling die holder, the installation pot head is equipped with the knurling mount pad, the installation end is equipped with adjusting flange and adjusting nut that are used for adjusting the installation end relative position that the knurling mount pad locates respectively at knurling mount pad both ends, wear to be equipped with the knurling pivot in the knurling die holder, knurling pivot mid-mounting has the knurling gear, its characterized in that: one end of the knurling rotating shaft, which is close to the cup bottom knurling mold, is provided with knurling wheels which are oppositely arranged, and also comprises knurling wheel seats which are oppositely and alternately arranged, the other ends of the two knurling wheels are respectively arranged on one knurling wheel seat, one end of the knurling rotating shaft, which faces the cup bottom knurling mold, is provided with a limiting ring, a knurling ejector rod shaft is penetrated in the knurling rotating shaft, one end of the knurling ejector rod shaft penetrates between the two knurling wheel seats to form a pushing structure which can simultaneously drive the knurling wheels at two ends to respectively abut against opposite edges of a cup bottom sleeved in an opening cavity of the cup bottom knurling mold, the other end of the knurling ejector rod shaft is provided with a cross rod, two ends of the cross rod are provided with rolling wheels, a plane cam with two sides arranged in a mirror image manner is arranged at the cross rod, the plane cam is provided with at least two groups of movement slopes with different heights, the number of which is the same as the number of the edges of the opening cavity, the movement, a knurling wheel seat guide structure which enables one end of the knurling mandril shaft penetrating into the knurling wheel seat to reciprocate along the same linear direction all the time is arranged between the limiting ring and the knurling wheel seat.
By adopting the technical scheme, the working principle of the invention is as follows: firstly, the whole cup bottom knurling mechanism is installed on a knurling lifting seat through a knurling installation seat, the knurling lifting seat is lifted up and down through a driving shaft and a cam, when a cup body rotates above the knurling mechanism, the knurling lifting seat enables the whole knurling mechanism to be close to the bottom of a special-shaped cup to be knurled through the cam lifting, the bottom of the special-shaped cup enters a cup bottom knurling mold, a knurling gear drives a knurling rotating shaft to rotate under the action of an external chain wheel mechanism, when the knurling rotating shaft rotates, a cross rod penetrating through a knurling mandril shaft arranged in the knurling rotating shaft travels along a movement slope on a plane cam, the number of the movement slope is controlled to be consistent with the number of the edges of an opening cavity and arranged in a mirror image mode, because the opening cavity is also formed in a mirror image mode along the central line of the opening cavity, when the knurling mandril shaft moves along the same movement slope, the two knurling wheel seats are simultaneously pushed through a pushing structure to enable two knurling wheels to simultaneously knurl the opposite side of, namely, the cross bar does a circular motion along the plane cam, the two knurling wheels respectively perform a complete knurling on the cup bottom, the cup bottom is simultaneously knurled by the two knurling wheels in a working period of a single cross bar, the cup bottom is knurled twice, the specific gradient of the motion slope is designed according to the shape of the cup bottom of the special-shaped cup, for example, for a rectangular cup bottom, the opening cavity is also rectangular, the motion slope is formed by arranging two groups of motion slopes with two larger radians and two smaller radians in a mirror image mode, the motion slope with the smaller radians corresponds to the shorter rectangular edge, the motion slope with the larger radians corresponds to the longer rectangular edge, if the cross bar moves to the highest point of an adjacent motion slope from the middle part of the bottom edge of a previous cup to the middle part of the bottom edge of a next adjacent cup, the knurling wheel seat always moves along the same straight line direction under the function of a knurling wheel seat guide structure arranged between the limiting ring and the knurling wheel seat, guarantee to roll the depth of lace, prevent that the annular knurl degree of depth from having the deep shallow part that leads to the bottom of cup annular knurl to seal up poor, the deep part is sealed good, CN: 100462221C, the contact pressure of the knurling wheel and the cup bottom is difficult to keep consistent when knurling works, and the knurling quality is affected.
The double-knurling wheel type special-shaped cup bottom knurling mechanism of the paper cup forming machine can be further arranged as follows: the pushing structure comprises a pushing block which is arranged on the knurled push rod shaft and is in an isosceles triangle shape, two knurled wheel seats are arranged towards one end of the pushing block and are provided with inclined planes matched with the inclination of the pushing block, and one end, far away from the knurled push rod shaft, of each knurled wheel seat is provided with a knurled wheel mounting portion for mounting a knurled wheel.
By adopting the technical scheme, when the cross rod travels along the movement slope of the plane cam, the pushing block of the knurling ejector rod shaft pushes the knurling wheel seat along the knurling wheel seat inclined plane to enable the two knurling wheels to respectively keep a state of abutting against one side of the cup bottom sleeved in the cup bottom knurling mold opening cavity, the two knurling wheels are oppositely arranged, the abutted cup bottom edges are also in an opposite state, when an external chain wheel mechanism drives the knurling rotating shaft to rotate through the knurling gears, the two knurling wheels roll along the cup bottom edges to perform one knurling for each pair of cup bottom edges, an effect of two knurling is formed, and the sealing performance of the cup bottom is better.
The double-knurling wheel type special-shaped cup bottom knurling mechanism of the paper cup forming machine can be further arranged as follows: the knurling wheel seat guide structure comprises crescent blocks arranged at two ends of the knurling wheel seat in a limiting ring, one end of each crescent block abuts against the inner wall of the limiting ring, the other end of each crescent block abuts against the knurling wheel seat, so that the knurling wheel seat can only reciprocate along the same straight line, and a sliding structure for sliding the knurling wheel seat is arranged between each crescent block and the knurling wheel seat.
By adopting the technical scheme, CN: 100462221 the technical proposal of which is that the radial action of the slide block should keep a small sliding gap to ensure the knurling quality by keeping the stable and good contact between the knurling wheel installed on the slide block and the wall of the square inner cavity of the knurling sleeve when knurling, but the small sliding gap not only increases the processing and assembling difficulty and has short service life, but the invention greatly reduces the processing and assembling difficulty and prolongs the service life of the moon-shaped block by arranging a sliding structure between the two moon-shaped blocks and the knurling wheel seat, and adopts the mode of double knurling wheel seats, each knurling wheel seat only has mechanical friction with a half moon-shaped block under the action of the pushing block, the two knurling wheel seats simultaneously rub the contact surface of the moon-shaped block and the knurling wheel seat, compared with the mode of single knurling wheel seat, although the abrasion speed is the same, one working cycle knurls twice on the bottom of the same special-shaped cup, the sealing effect is greatly improved.
The double-knurling wheel type special-shaped cup bottom knurling mechanism of the paper cup forming machine can be further arranged as follows: the sliding structure comprises a 7-shaped notch formed in one end, far away from the cup bottom knurling mold, of the crescent block, the knurling wheel seat is provided with a step matched with the 7-shaped notch at the 7-shaped notch, and the 7-shaped notch and the step are provided with arc-shaped yielding grooves at right-angle positions of each other.
By adopting the technical scheme, the existing processing technology is adopted, the parts matched in pairs can be directly processed and formed by linear cutting, the problem of large size difference and mismatching does not exist, but the problem of too fast mechanical wear easily occurs between the parts subjected to the paired linear cutting during mechanical friction, therefore, the invention adopts the arc abdicating grooves which are arranged at the mutually right-angle positions of the 7-shaped notch of the crescent block and the step of the knurled wheel seat, the right-angle positions of the 7-shaped notch and the step are sufficiently protected by the design of the arc abdicating grooves, the right-angle parts are worn and damaged when the two parts are subjected to the mechanical friction, and the service lives of the two parts are prolonged.
The double-knurling wheel type special-shaped cup bottom knurling mechanism of the paper cup forming machine can be further arranged as follows: a return structure is arranged between one end of the knurled wheel seat and the limiting ring, the return structure comprises an installation notch formed in the knurled wheel seat and arranged towards one end of the inner wall of the limiting ring, a return spring is arranged in the installation notch, and one end of the return spring is abutted to the other end of the bottom of the installation notch and is abutted to the limiting ring.
By adopting the technical scheme, the knurling wheel seat can be restored to the initial position when not receiving the acting force of the knurling mandril shaft by arranging the return structure, and the knurling position precision of the next working time is ensured.
The invention has the beneficial effects that: the depth of the knurling is the same, make each position of dysmorphism cup bottom of cup unanimous through the leakproofness behind the knurling, carry out twice knurling to the bottom of cup in the single knurling action, the sealed effect of the bottom of cup has been promoted greatly, and the paper cup and the paper bowl of considering to square shape (square here does not mean specific quadrangle, can be hexagon or other polygons) among the prior art have been overcome, hardly realize the technical bias of bottom of cup knurling, only need change plane cam and bottom of cup knurling mould just can adapt to the dysmorphism cup bottom of cup knurling of different shapes, therefore, the commonality is strong.
The present invention will be described in further detail with reference to the accompanying drawings and examples.
Drawings
Fig. 1 is a schematic perspective view of the knurl lifting seat mounted in the embodiment of the present invention.
Fig. 2 is a schematic perspective view of an embodiment of the present invention.
Fig. 3 is a schematic diagram of an exploded structure of an embodiment of the present invention with the cross bar and the flat cam removed.
Fig. 4 is a top view of a knurled wheel base and knurled ram shaft of an embodiment of the present invention assembled.
Fig. 5 is a schematic sectional view taken along the line a-a in fig. 4.
FIG. 6 is a schematic view of the knurled wheel base and the crescent in accordance with an embodiment of the present invention.
Fig. 7 is an exploded view of fig. 6.
Detailed Description
Referring to fig. 1-7: a double-knurling wheel type special-shaped cup bottom knurling mechanism of a paper cup forming machine comprises a knurling die holder 1, a cup bottom knurling die 2 which is arranged on the knurling die holder 1 and is provided with an opening cavity matched with the shape of a cup bottom, the other end of the cup bottom knurling die 2, which is oppositely arranged on the knurling die holder 1, forms a mounting end 11 for mounting the knurling die holder 1 on a knurling lifting seat 3, the mounting end 11 is sleeved with a knurling mounting seat 4, the mounting end 11 is respectively provided with an adjusting flange 5 and an adjusting nut 6 which are used for adjusting the relative position of the mounting end 11, which is positioned on the knurling mounting seat 4, at the two ends of the knurling mounting seat 4, a knurling rotating shaft 7 is arranged in the knurling die holder 1 in a penetrating way, a knurling gear 8 is arranged in the middle part of the knurling rotating shaft 7, one end of the knurling wheel 9, which is close to the cup bottom knurling die 2, is oppositely arranged, and also comprises knurling wheel seats 10 which are oppositely and are, a limiting ring 101 is arranged at one end of the knurled rotating shaft 7 facing the cup bottom knurling mold 2, a knurled push rod shaft 71 is arranged in the knurled rotating shaft 7 in a penetrating manner, one end of the knurled push rod shaft 71 penetrates between two knurled wheel seats 10 to form a pushing structure capable of simultaneously driving knurling wheels 9 at two ends to respectively abut against opposite sides of a cup bottom sleeved in an opening cavity of the cup bottom knurling mold 2, a cross rod 72 is arranged at the other end of the knurled push rod shaft 71, rollers 73 are arranged at two ends of the cross rod, a planar cam 301 with two sides arranged in a mirror image manner is arranged at the cross rod 72 of the knurled lifting seat 3, two groups of movement slopes 3011 with different heights and with the same number as the opening cavity sides and with even number in mirror image arrangement are arranged on the planar cam 301, adjacent movement slopes 3011 are arranged in a connecting manner, the cross rod 72 can do circular movement along the movement slopes 3011 through the rollers 73, a knurled wheel seat guiding structure for enabling one end of the knurled push rod shaft 71 penetrating into the knurled wheel seats 10 to, the pushing structure comprises a pushing block 711 which is arranged on a knurled push rod shaft 71 and is in an isosceles triangle shape, one end, facing the pushing block 711, of each of two knurled wheel seats 10 is provided with an inclined surface 1001 matched with the inclination of the pushing block 711, one end, away from the knurled push rod shaft 71, of each of the two knurled wheel seats 10 is provided with a knurled wheel mounting part 1002 for mounting a knurled wheel 9, each knurled wheel seat guiding structure comprises a moon-shaped block 1004 arranged at two ends of each knurled wheel seat 10 in a limiting ring 101, one end, against the inner wall of the limiting ring 101, of each moon-shaped block 1004 abuts against the other end of each knurled wheel seat 10, so that the knurled wheel seats 10 can only reciprocate along the same straight line, a sliding structure for sliding the knurled wheel seats 10 is arranged between the two moon-shaped blocks 1004 and the knurled wheel seats 10, the sliding structure comprises a 7-shaped notch 10041 formed by the moon-shaped blocks 1004 and the ends, away from the cup-bottom knurled dies 2, the knurled wheel seats 10 are, an arc-shaped abdicating groove 1006 is arranged at the right-angle position of the 7-shaped notch 10041 and the step 1005, a return structure is arranged between one end of the knurled wheel base 10 and the limiting ring 101, the return structure comprises an installation notch 1007 arranged at one end of the knurled wheel base 10 facing the inner wall of the limiting ring 101, a return spring 1008 is arranged in the installation notch 1007, one end of the return spring 1008 is abutted against the bottom of the installation notch 1007, the other end of the return spring abuts against the limiting ring 101, a knurled jack rod shaft lifting limiting structure is arranged between the knurled rotating shaft 7 and the knurled jack rod shaft 71, the knurled jack rod shaft lifting limiting structure comprises a limiting long groove 701 oppositely arranged on the outer wall of the knurled rotating shaft 7, a through hole 712 is arranged in the position of the limiting long groove 701 on the knurled jack rod shaft 71, a limiting rod 713 penetrates through the through hole 712, two ends of the limiting rod 713 are, the knurling jack rod shaft 71 is driven by the cross bar to move up and down in the knurling rotating shaft 7 to reciprocate, meanwhile, the knurling jack rod shaft 71 can only move for the length of the limiting long groove 701 under the action of the limiting long groove 701 and the limiting rod 713 penetrating through the through hole 712, the situation that the knurling wheel seat 10 is pushed out excessively to enable a certain part of knurling on the cup bottom to be too deep and even to break the cup bottom is prevented, the spring 714 is wound outside the limiting long groove 701, two ends of the limiting rod 713 penetrate into the spring 714, bearings 715 are arranged at two ends of the spring 714 on the knurling jack rod shaft 71, and the spring 714 drives the knurling jack rod shaft 71 to return quickly through the limiting rod 713.

Claims (5)

1. Double-knurling wheel type special-shaped cup bottom knurling mechanism of paper cup forming machine, including the knurling die holder, install the cup bottom knurling mould of establishing with paper cup bottom shape adaptation opening chamber on the knurling die holder, the other end formation of the relative installation cup bottom knurling mould of knurling die holder is used for installing the installation end at the knurling lift seat with the knurling die holder, the installation pot head is equipped with the knurling mount pad, the installation end is equipped with adjusting flange and adjusting nut that are used for adjusting the installation end relative position that the knurling mount pad locates respectively at knurling mount pad both ends, wear to be equipped with the knurling pivot in the knurling die holder, knurling pivot mid-mounting has the knurling gear, its characterized in that: one end of the knurling rotating shaft, which is close to the cup bottom knurling mold, is provided with knurling wheels which are oppositely arranged, and also comprises knurling wheel seats which are oppositely and alternately arranged, the other ends of the two knurling wheels are respectively arranged on one knurling wheel seat, one end of the knurling rotating shaft, which faces the cup bottom knurling mold, is provided with a limiting ring, a knurling ejector rod shaft is penetrated in the knurling rotating shaft, one end of the knurling ejector rod shaft penetrates between the two knurling wheel seats to form a pushing structure which can simultaneously drive the knurling wheels at two ends to respectively abut against opposite edges of a cup bottom sleeved in an opening cavity of the cup bottom knurling mold, the other end of the knurling ejector rod shaft is provided with a cross rod, two ends of the cross rod are provided with rolling wheels, a plane cam with two sides arranged in a mirror image manner is arranged at the cross rod, the plane cam is provided with at least two groups of movement slopes with different heights, the number of which is the same as the number of the edges of the opening cavity, the movement, a knurling wheel seat guide structure which enables one end of the knurling mandril shaft penetrating into the knurling wheel seat to reciprocate along the same linear direction all the time is arranged between the limiting ring and the knurling wheel seat.
2. The double-knurling wheel type special-shaped cup bottom knurling mechanism of the paper cup forming machine according to claim 1, which is characterized in that: the pushing structure comprises a pushing block which is arranged on the knurled push rod shaft and is in an isosceles triangle shape, two knurled wheel seats are arranged towards one end of the pushing block and are provided with inclined planes matched with the inclination of the pushing block, and one end, far away from the knurled push rod shaft, of each knurled wheel seat is provided with a knurled wheel mounting portion for mounting a knurled wheel.
3. The double-knurling wheel type special-shaped cup bottom knurling mechanism of the paper cup forming machine according to claim 1 or 2, which is characterized in that: the knurling wheel seat guide structure comprises crescent blocks arranged at two ends of the knurling wheel seat in a limiting ring, one end of each crescent block abuts against the inner wall of the limiting ring, the other end of each crescent block abuts against the knurling wheel seat, so that the knurling wheel seat can only reciprocate along the same straight line, and a sliding structure for sliding the knurling wheel seat is arranged between each crescent block and the knurling wheel seat.
4. The double-knurling wheel type special-shaped cup bottom knurling mechanism of the paper cup forming machine according to claim 3, which is characterized in that: the sliding structure comprises a 7-shaped notch formed in one end, far away from the cup bottom knurling mold, of the crescent block, the knurling wheel seat is provided with a step matched with the 7-shaped notch at the 7-shaped notch, and the 7-shaped notch and the step are provided with arc-shaped yielding grooves at right-angle positions of each other.
5. The double-knurling wheel type special-shaped cup bottom knurling mechanism of the paper cup forming machine according to claim 4, which is characterized in that: a return structure is arranged between one end of the knurled wheel seat and the limiting ring, the return structure comprises an installation notch formed in the knurled wheel seat and arranged towards one end of the inner wall of the limiting ring, a return spring is arranged in the installation notch, and one end of the return spring is abutted to the other end of the bottom of the installation notch and is abutted to the limiting ring.
CN202011605371.4A 2020-12-30 2020-12-30 Double-knurling wheel type special-shaped cup bottom knurling mechanism of paper cup forming machine Pending CN112721311A (en)

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5324249A (en) * 1992-08-28 1994-06-28 Paper Machinery Corporation Cup making machine
US6135936A (en) * 1999-02-17 2000-10-24 Fort James Corporation Paper cup bottoms and method and apparatus for forming same
CN1861382A (en) * 2006-06-14 2006-11-15 彭来静 Device for knurling bottom of cubic paper cup of paper cup formation machine
CN204136485U (en) * 2014-09-27 2015-02-04 瑞安市胜利机械有限公司 Sealing mechanism is rolled at the bottom of the cup of the radial direction pushing knurled wheel of paper cup making machine
CN204820461U (en) * 2015-07-29 2015-12-02 瑞安市明国机械有限公司 Full -automatic paper cup forming machine's annular knurl device
CN107263920A (en) * 2017-06-23 2017-10-20 嘉兴市新发现机械制造有限公司 Push rod rolls bottom formula base pressure device
CN208324359U (en) * 2018-06-26 2019-01-04 浙江国豪机械有限公司 A kind of bottom of a cup rolling sealing mechanism of paper cup making machine
CN109483951A (en) * 2018-12-29 2019-03-19 浙江新发现机械制造有限公司 It is a kind of for making the bottom sealing device of square shape paper container
CN110588066A (en) * 2019-10-23 2019-12-20 浙江瑞大机械有限公司 Multi-roller square paper cup knurling mechanism

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5324249A (en) * 1992-08-28 1994-06-28 Paper Machinery Corporation Cup making machine
US6135936A (en) * 1999-02-17 2000-10-24 Fort James Corporation Paper cup bottoms and method and apparatus for forming same
CN1861382A (en) * 2006-06-14 2006-11-15 彭来静 Device for knurling bottom of cubic paper cup of paper cup formation machine
CN204136485U (en) * 2014-09-27 2015-02-04 瑞安市胜利机械有限公司 Sealing mechanism is rolled at the bottom of the cup of the radial direction pushing knurled wheel of paper cup making machine
CN204820461U (en) * 2015-07-29 2015-12-02 瑞安市明国机械有限公司 Full -automatic paper cup forming machine's annular knurl device
CN107263920A (en) * 2017-06-23 2017-10-20 嘉兴市新发现机械制造有限公司 Push rod rolls bottom formula base pressure device
CN208324359U (en) * 2018-06-26 2019-01-04 浙江国豪机械有限公司 A kind of bottom of a cup rolling sealing mechanism of paper cup making machine
CN109483951A (en) * 2018-12-29 2019-03-19 浙江新发现机械制造有限公司 It is a kind of for making the bottom sealing device of square shape paper container
CN110588066A (en) * 2019-10-23 2019-12-20 浙江瑞大机械有限公司 Multi-roller square paper cup knurling mechanism

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