US20040244559A1 - Cutting fixture for heat-shrink film sleeve labeling machines - Google Patents
Cutting fixture for heat-shrink film sleeve labeling machines Download PDFInfo
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- US20040244559A1 US20040244559A1 US10/453,496 US45349603A US2004244559A1 US 20040244559 A1 US20040244559 A1 US 20040244559A1 US 45349603 A US45349603 A US 45349603A US 2004244559 A1 US2004244559 A1 US 2004244559A1
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- Prior art keywords
- blade
- blade assembly
- shrink film
- power structure
- heat
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B26—HAND CUTTING TOOLS; CUTTING; SEVERING
- B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
- B26D1/00—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor
- B26D1/01—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which does not travel with the work
- B26D1/12—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which does not travel with the work having a cutting member moving about an axis
- B26D1/25—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which does not travel with the work having a cutting member moving about an axis with a non-circular cutting member
- B26D1/26—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which does not travel with the work having a cutting member moving about an axis with a non-circular cutting member moving about an axis substantially perpendicular to the line of cut
- B26D1/28—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which does not travel with the work having a cutting member moving about an axis with a non-circular cutting member moving about an axis substantially perpendicular to the line of cut and rotating continuously in one direction during cutting
- B26D1/285—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which does not travel with the work having a cutting member moving about an axis with a non-circular cutting member moving about an axis substantially perpendicular to the line of cut and rotating continuously in one direction during cutting for thin material, e.g. for sheets, strips or the like
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B26—HAND CUTTING TOOLS; CUTTING; SEVERING
- B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
- B26D1/00—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor
- B26D1/01—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which does not travel with the work
- B26D1/12—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which does not travel with the work having a cutting member moving about an axis
- B26D1/25—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which does not travel with the work having a cutting member moving about an axis with a non-circular cutting member
- B26D1/26—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which does not travel with the work having a cutting member moving about an axis with a non-circular cutting member moving about an axis substantially perpendicular to the line of cut
- B26D1/30—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which does not travel with the work having a cutting member moving about an axis with a non-circular cutting member moving about an axis substantially perpendicular to the line of cut with limited pivotal movement to effect cut
- B26D1/305—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which does not travel with the work having a cutting member moving about an axis with a non-circular cutting member moving about an axis substantially perpendicular to the line of cut with limited pivotal movement to effect cut for thin material, e.g. for sheets, strips or the like
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B26—HAND CUTTING TOOLS; CUTTING; SEVERING
- B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
- B26D3/00—Cutting work characterised by the nature of the cut made; Apparatus therefor
- B26D3/16—Cutting rods or tubes transversely
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B26—HAND CUTTING TOOLS; CUTTING; SEVERING
- B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
- B26D3/00—Cutting work characterised by the nature of the cut made; Apparatus therefor
- B26D3/16—Cutting rods or tubes transversely
- B26D3/164—Cutting rods or tubes transversely characterised by means for supporting the tube from the inside
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65C—LABELLING OR TAGGING MACHINES, APPARATUS, OR PROCESSES
- B65C3/00—Labelling other than flat surfaces
- B65C3/06—Affixing labels to short rigid containers
- B65C3/065—Affixing labels to short rigid containers by placing tubular labels around the container
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65C—LABELLING OR TAGGING MACHINES, APPARATUS, OR PROCESSES
- B65C9/00—Details of labelling machines or apparatus
- B65C9/0065—Cutting tubular labels from a web
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C63/00—Lining or sheathing, i.e. applying preformed layers or sheathings of plastics; Apparatus therefor
- B29C63/38—Lining or sheathing, i.e. applying preformed layers or sheathings of plastics; Apparatus therefor by liberation of internal stresses
- B29C63/42—Lining or sheathing, i.e. applying preformed layers or sheathings of plastics; Apparatus therefor by liberation of internal stresses using tubular layers or sheathings
- B29C63/423—Lining or sheathing, i.e. applying preformed layers or sheathings of plastics; Apparatus therefor by liberation of internal stresses using tubular layers or sheathings specially applied to the mass-production of externally coated articles, e.g. bottles
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S83/00—Cutting
- Y10S83/929—Particular nature of work or product
- Y10S83/946—Container
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T83/00—Cutting
- Y10T83/869—Means to drive or to guide tool
- Y10T83/8798—With simple oscillating motion only
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T83/00—Cutting
- Y10T83/869—Means to drive or to guide tool
- Y10T83/8874—Uniplanar compound motion
- Y10T83/8877—With gyratory drive
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T83/00—Cutting
- Y10T83/929—Tool or tool with support
- Y10T83/9411—Cutting couple type
- Y10T83/9423—Punching tool
- Y10T83/9428—Shear-type male tool
- Y10T83/9432—Plural spaced successively operative shearing portions
Definitions
- the invention herein relates to manufacturing equipment, specifically an improved cutting fixture for heat-shrink film sleeve labeling machines.
- the arrangement of the cutting fixture in such conventional heat-shrink film sleeve labeling machines typically consists of revolving blade mounts 2 each carrying a blade 3 and disposed at equal intervals apart in a circular star pattern surrounding the center guide post 1 , a circular groove 4 around the center guide post 1 facing towards the blades 3 , a gear (not shown in the drawings) situated on the revolving blade mount 2 , and a motor 5 driving two cogged belts 6 and 7 that are coupled to the revolving blade mount 2 via a transmissive wheel which enables the simultaneous rotation of all the revolving blade mounts 2 , while causing the blades 3 to rotate within the circular groove 4 of the revolving blade mount 2 and thereby cut the heat-shrink film sleeving.
- FIG. 2, FIG. 3, and FIG. 4 consisting of a plurality of blade assemblies 20 pivotably disposed on an upper and a lower mounting frame 11 and 12 surrounding the outer periphery of the center guide post 1 ; a shaft 201 in each blade assembly 20 , the bottom extremity of which is fitted though an identical bearing 202 and into a connecting socket 203 ; a dial plate 204 , a mounting base 205 , a blade adjustment base 206 , a blade 207 , and a clamp plate 208 respectively positioned under the bottom portion of the connecting socket 203 ; and an eccentric shaft 209 at the top extremity of each shaft 201 that is pivotably disposed facing the hole area of a drive plate 200 ; additionally, a belt wheel N is installed on the shaft 201 of one blade assembly 20 that enables 360-degree driven rotation via a cogged belt P connected to an external power structure (such as a motor), the resultant coordinated operation of the eccentric shaft
- FIG. 5 and FIG. 6 which consists of a plurality of blade assemblies disposed in circular pattern at equal intervals apart on a mounting frame 11 ; a separate, vertical first and second shaft 30 and 50 along which the said blade assemblies traverse; and an eccentric rod 32 of a different angle at the bottom extremity of the first shaft 30 in the hole of a drive plate 40 , wherein the blade assembly first shaft 30 has a drive wheel 35 that enables 360-degree driven rotation via a cogged belt P connected to an external power structure (such as a motor), causing all the first shafts 30 to synchronously rotate in the same direction.
- an external power structure such as a motor
- the said first and second shaft 30 and 50 have an upper eccentric rod 31 and 51 at their respective distal extremities and, furthermore, each group of two upper eccentric rods 31 and 51 is linked by a connecting rod 60 such that the first shaft 30 , via the upper eccentric rod 31 and 51 as well as the connecting rod 60 , cause each second shaft 50 and blade 70 at the bottom end to swing to the left and right, alternately projecting and retracting for the cutting operation.
- the primary objective of the invention herein is to provide an improved cutting fixture for heat-shrink film sleeve labeling machines in which a plurality of blade assemblies are disposed at equal intervallic degrees apart in a circular pattern around the outer periphery of the center guide post, with each having their eccentric shafts situated at drive plates to maintain synchronized operation, and a power structure directly driving the eccentric shafts of the blade assemblies into reciprocal rotation at a settable angle, thereby maintaining the synchronization of the blade assembly blades and enabling a reciprocally rotational cutting action in a simple arrangement that increases production efficiency.
- Another objective of the invention herein is to provide an improved cutting fixture for heat-shrink film sleeve labeling machines in which the shaft of each blade assembly blade is limited by a check plate and anchoring screws during reciprocal rotation so that 360-degree free rotation cannot occur so that the removal and installation of the said blade is not only simple, convenient, and rapid, but safer and of higher efficiency.
- Yet another objective of the invention herein is to provide an improved cutting fixture for heat-shrink film sleeve labeling machines in which the power structure provides for setting the angle of reciprocal rotation, including the cogged belt, the transmission components, and so on are which are in a state of partial contact such that when wear occurs at points of contact, adjustment and changes can be effected at those positions, which not only enables precise and positive power transmission, but at the same time provides for prolonged service life and economic value.
- FIG. 1 is an orthographic drawing of a conventional cutting fixture ( 1 ).
- FIG. 2 is a cross-sectional drawing of a conventional cutting fixture ( 2 ).
- FIG. 3 is an orthographic drawing of FIG. 2 in the driven state.
- FIG. 4 is an orthographic drawing of FIG. 2 in the driven state.
- FIG. 5 is a cross-sectional drawing of a conventional cutting fixture ( 3 ).
- FIG. 6 is an orthographic drawing of FIG. 5 in the driven state.
- FIG. 7 is a cross-sectional drawing of the cutting fixture of the invention herein.
- FIG. 8 is an orthographic drawing of FIG. 7, as viewed from the bottom.
- FIG. 9 is a cross-sectional drawing of FIG. 7, as viewed from the side.
- FIG. 10A is an orthographic drawing of the cutter shaft of the invention herein, as viewed from the front.
- FIG. 10B is a cross-sectional drawing of FIG. 10A, as viewed from the top.
- FIG. 11A is an orthographic drawing of the eccentric shaft of the invention herein, as viewed from the side.
- FIG. 11B is an orthographic drawing of FIG. 1A, as viewed from the bottom.
- FIG. 12A is an orthographic drawing of the eccentric shaft driven by the power structure, as viewed from the front.
- FIG. 12B is an orthographic drawing of FIG. 12A, as viewed from the bottom.
- FIG. 13 is a cross-sectional drawing of the locating sleeve of the invention herein.
- FIG. 14 is an orthographic drawing of check plate of the invention herein.
- FIG. 15 is an orthographic drawing of the invention herein during the clockwise rotational cutting state, as viewed from the bottom.
- FIG. 16 is an orthographic drawing of the invention herein during the counter-clockwise rotational cutting state, as viewed from the bottom.
- the improved cutting fixture for heat-shrink film sleeve labeling machines of the invention herein is comprised of a mounting frame 11 disposed around the outer periphery of the center guide post 1 in a sleeve labeling machine that secures a plurality of blade assemblies 80 at equal intervals apart, with one of the blade assemblies 80 directly connected to a power structure 90 providing for its reciprocal rotation at a settable angle.
- Each said blade assembly 80 consists of a cutter shaft 801 (see FIG. 11) in an upper and a lower bearing E that are seated within a corresponding hole through a support plate 111 of the mounting frame 11 to maintain it in a state of free rotation; a blade holder 802 , a blade 803 , and a blade cover 804 at the bottom section similar to the conventional arrangement; and an eccentric shaft 805 at the top section; after the said the said eccentric shaft 805 (see FIG.
- the said locating sleeve 807 in addition to an offset axial hole 8071 that provides for the shaft tip 8051 ′ of the second eccentric shaft 805 ′, the said locating sleeve 807 has a cutter shaft 801 arranged in line with it, with a key K fixing a timing gear L (a cogged belt gear) enabling the direct rotation of a cogged belt 901 by the power structure 90 that results in the synchronized rotation of the eccentric shaft 805 , the cutter shaft 801 , and the blade 803 by the drive plate 806 . Furthermore, a check plate 808 (see FIG.
- the said corresponding holes 808 has a radially disposed limit groove 8082 along its circumference; when the blade 803 on the said cutter shaft 801 is aligned with the center guide post 1 (see FIG. 8) and the radial area is aligned with the limit groove 8082 closely arrayed threaded holes 8011 (see FIG. 10), anchoring screws 8012 are fastened therein such that they extend inward from the limit groove 8082 (see FIG. 8 and FIG. 9).
- the said power structure 90 consists of a cogged belt 901 driven into reciprocal rotation by a servo-motor coupled to the blade assembly 80 timing gear L to achieve automatic clockwise and counter-clockwise operation at a set angle, or a clockwise/counter-clockwise motor circuit and sensor control, or other mechanical power structure (such as a gear box), the only requirement being the capability to reciprocally rotate the blade assembly 80 timing gear L at a set angle; however, for the embodiment of the invention herein, a presettable servo-motor that allows the adjustment of the clockwise/counter-clockwise angle of rotation is the most expedient.
- the angle of reciprocal rotation by the driven said timing gear L is dependent on the quantity of blade assemblies 80 circularly disposed around the outer periphery of the center guide post 1 , wherein it is only necessary to ensure that the rotational range of the adjacent blade assembly 80 blades 803 have sufficient clearance to enable the full cutting of heat-shrink film around the center guide post 1 ; in the case of a large quantity of blade assemblies 80 , then the driven angle of reciprocation by the timing gear L is set lower and, conversely, if there is a lesser quantity of blade assemblies 80 , then the driven angle of reciprocation by the timing gear L must be higher, the particular results enabling the blade assembly 80 blades 803 to synchronously rotate 120 degrees and thereby perform cutting operations.
- the included angle ⁇ (see FIG. 14) defined by the two ends of the check plate 808 limit groove 8082 is similarly dependent on the quantity of blade assemblies 80 installed; however, the said included angle ⁇ is set slightly larger than the angle of reciprocal rotation at which the timing gear L is driven so that the anchoring screws 8012 fastened thereon cannot impact the two extremes of the limit groove 8082 when the cutter shafts 801 of each said blade assembly 80 are reciprocally rotated.
- the cogged belt 901 drives the timing gear L of a blade assembly 80 into clockwise rotation at the set angle such that the drive plate 806 , the eccentric shafts 805 ( 805 ′), and the cutter shafts 801 are coordinatively brought into motion and all the said blade assembly 80 blades 803 synchronously rotate in a clockwise direction to execute a single cutting operation of heat-shrink film sleeving at the guide post 1 ; when the power structure 90 is preset at an angle for counter-clockwise rotation, as shown in FIG.
- the blades 803 of the said blade assembly 80 accordingly rotate in a counter-clockwise direction to cut another section of heat-shrink film.
- the blades 803 of the invention herein only require setting the angle of reciprocal rotation to smoothly and, furthermore, rapidly and accurately cut heat-shrink film, without requiring the 360 degrees of rotation involved in the prior art, thereby affording a significant, tangible increase in production efficiency.
- the straightforward structure of the invention herein is not only capable of articulating all the blades 803 at a set angle for reciprocally rotational cutting operations, but also provides for easy, convenient, and economical manufacture, assembly, repair, and maintenance.
- each cutter shaft 801 Since the anchoring screws 8012 in each cutter shaft 801 are fastened such that they extend inward from the limit groove 8082 of the check plate 808 , loading and unloading the blades 803 only requires removing the anchoring screw 8012 at one end of the limit groove 8082 on the blade holder 802 and the cutter shaft 801 , the cutter shaft 801 remaining stationary to facilitate easy, convenient, and safe blade 803 replacement.
- the said anchoring screws 8081 can at that time serve as preventers at the check plate 808 limit groove 8082 that trigger a circuit-controlled relay such that the random rotation and cutting by the said blades 803 cannot occur, which prevents mechanical damage and wear, while also greatly increasing operating safety.
- the power structure 90 of the invention herein provides for setting the angle of reciprocal rotation and re-orienting transmission components such as the cogged belt 901 , the timing gear L, and so on are which are in a state of partial contact such that when wear occurs at points of contact, adjustment and changes can be effected at those positions to enable continued utilization without requiring parts replacement; as such, the service life of structural components is prolonged for better economic efficiency.
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Abstract
An improved cutting fixture for heat-shrink film sleeve labeling machines comprised of a mounting frame disposed around the outer periphery of the center guide post in a sleeve labeling machine that secures a plurality of blade assemblies at equal intervals apart. Each blade assembly is positioned on a drive plate by means of an inserted eccentric shaft to maintain synchronous operation. The eccentric shafts of the blade assembly are driven into reciprocal rotation by a power structure, each eccentric shaft causing the blades at their lower extents to alternately project and retract for cutting heat-shrink film at a required travel and time to effectively shorten the period involved and thereby increase production efficiency. Each cutter shaft is restrained by a check plate and anchoring screws to prevent 360-degree free rotation, which not only results in safer blade replacement, but at the same time also prolongs the service life of the transmission and structural components.
Description
- 1) Field of the Invention
- The invention herein relates to manufacturing equipment, specifically an improved cutting fixture for heat-shrink film sleeve labeling machines.
- 2) Description of the Prior Art
- The operating approach of conventional sleeve labeling machines involves pulling heat-shrink film pass a center guide post such that after the heat-shrink film is drawn into a tubular state, it is cut to the required length, slipped over a container such as a bottle, and then heated to fix the already cut heat-shrink film onto the container.
- The arrangement of the cutting fixture in such conventional heat-shrink film sleeve labeling machines, as shown in FIG. 1, typically consists of revolving blade mounts2 each carrying a blade 3 and disposed at equal intervals apart in a circular star pattern surrounding the
center guide post 1, acircular groove 4 around thecenter guide post 1 facing towards the blades 3, a gear (not shown in the drawings) situated on the revolving blade mount 2, and a motor 5 driving twocogged belts 6 and 7 that are coupled to the revolving blade mount 2 via a transmissive wheel which enables the simultaneous rotation of all the revolving blade mounts 2, while causing the blades 3 to rotate within thecircular groove 4 of the revolving blade mount 2 and thereby cut the heat-shrink film sleeving. Since thecogged belt 7 drives all of the said revolving blade mounts 2 to rotate simultaneously such that a synchronized 360-degree rotation occurs prior to each instance of cutting by the blades 3. Although such an operating approach achieves the objective of cutting the heat-shrink film sleeving, the following shortcomings happen: - 1. Since the said revolving blade mount2 and blade 3 must rotationally travel 360 degrees to perform a cut, a minimum of 180 degrees or more of travel and time are wasted because no work is done, a shortcoming which obviously hampers cutting rate and makes it impossible to increase production efficiency.
- 2. Since the
cogged belt 7 of the said revolving blade mount 2 is a looped construct, long-term usage gives rise to elastic fatigue and results in elongation from stretching such that after a period of cutting operation, the revolving blade mount 2 and blades 3 are no longer capable of synchronized rotational cutting and fully cutting the heat-shrink film sleeving, leaving partially cut areas or slashes that impart unevenness. Although Idlerwheel 8 constantly exerts pressure against thecogged belt 7 and remedies the said drawback, this is still a troublesome and inconvenient operating fault. - 3. Since the blades3 must be replaced regularly to maintain edge sharpness and smoothness, and the said revolving blade mounts 2 have to be kept capable of 360-degree free rotation, during blade 3 replacement, the operator must grasp or exert force against the
cogged belts 6 and 7 with one hand and then remove and install theblade screws 9 with the other hand, a procedure that is obviously troublesome, inconvenient, and hazardous, while also adversely affecting the usable service life of thecogged belts 6 and 7. - To improve upon the said shortcomings, manufacturers have introduced another type of cutting fixture, as indicated in FIG. 2, FIG. 3, and FIG. 4, consisting of a plurality of
blade assemblies 20 pivotably disposed on an upper and alower mounting frame center guide post 1; ashaft 201 in eachblade assembly 20, the bottom extremity of which is fitted though anidentical bearing 202 and into a connectingsocket 203; adial plate 204, amounting base 205, ablade adjustment base 206, ablade 207, and aclamp plate 208 respectively positioned under the bottom portion of the connectingsocket 203; and aneccentric shaft 209 at the top extremity of eachshaft 201 that is pivotably disposed facing the hole area of adrive plate 200; additionally, a belt wheel N is installed on theshaft 201 of oneblade assembly 20 that enables 360-degree driven rotation via a cogged belt P connected to an external power structure (such as a motor), the resultant coordinated operation of theeccentric shaft 209 and thedrive plate 200 causing all theblades 207 to synchronously rotate 360 degrees while projecting and retracting (as shown in FIG. 4). Such an operating approach is undeniably workable as there is a solution for the drawback of the prior art revolving blade mount 2 and blade 3 due to the elastic fatigue of thecogged belt 7 that results in a loss of synchronized cutting performance; however, what has not been improved is the shortcoming wherein the said minimum of 180 degrees of travel and time are wasted and no work is done because thesaid blades 207 must rotate 360 degrees to complete a single instance of projection and retraction for the cutting operation; at the same time, since the saidblades 207 all freely rotate 360 degrees, replacing theblades 207 as previously stated is a troublesome, inconvenient, and unsafe procedure and, furthermore, the service life of the cogged belt P is shortened; additionally, since thebearing 202 is situated at the top end of the said connectingsocket 203 and thedial plate 204, themounting base 205, theblade adjustment base 206, theblade 207, and theclamp plate 208 are at its lower end, the overall weight is so excessive that when driven at a high rate of rotation, stability is compromised, resulting in slashes that impart an uneven quality and poor appearance in the heat-shrink film. - To further enhance the practicality and performance of the cutting fixture of the said heat-shrink film sleeve labeling machine, manufacturers introduced the cutting fixture shown in FIG. 5 and FIG. 6, which consists of a plurality of blade assemblies disposed in circular pattern at equal intervals apart on a
mounting frame 11; a separate, vertical first andsecond shaft eccentric rod 32 of a different angle at the bottom extremity of thefirst shaft 30 in the hole of adrive plate 40, wherein the blade assemblyfirst shaft 30 has adrive wheel 35 that enables 360-degree driven rotation via a cogged belt P connected to an external power structure (such as a motor), causing all thefirst shafts 30 to synchronously rotate in the same direction. - The said first and
second shaft eccentric rod eccentric rods rod 60 such that thefirst shaft 30, via the uppereccentric rod rod 60, cause eachsecond shaft 50 andblade 70 at the bottom end to swing to the left and right, alternately projecting and retracting for the cutting operation. - Such an operating approach is arguably better than the preceding prior art; since the blade cutting action consists of a left and right reciprocation, not the said 360-degree rotation, that results in less idle time and travel, the arrangement provides for higher efficiency; however, the aspect of inadequacy is that achieving the projecting and retracting cutting action of the blade assemblies on the said
drive plate 40 requires the installation of the connectingrod 60 between thefirst shaft 30 and thesecond shaft 50 of each blade assembly as well as other components (such as bearings and bearing seats, etc); as such, the structure is obviously of greater complexity and, furthermore, fabrication and assembly as well as maintenance and repair are more difficult, inconvenient, and uneconomical; additionally, since the projecting and retracting cutting action of the blades is based on the coordinated articulation of the connectingrod 60 along with the uppereccentric rod second shaft first shaft 30 and thedrive plate 40 stationary and use the other hand for removing and installing the blade, a procedure which still has the drawbacks of being troublesome, inconvenient, and hazardous. - As conveyed above, the heat-shrink film cutting fixtures of conventional sleeve labeling machines still have shortcomings that require improvement.
- The primary objective of the invention herein is to provide an improved cutting fixture for heat-shrink film sleeve labeling machines in which a plurality of blade assemblies are disposed at equal intervallic degrees apart in a circular pattern around the outer periphery of the center guide post, with each having their eccentric shafts situated at drive plates to maintain synchronized operation, and a power structure directly driving the eccentric shafts of the blade assemblies into reciprocal rotation at a settable angle, thereby maintaining the synchronization of the blade assembly blades and enabling a reciprocally rotational cutting action in a simple arrangement that increases production efficiency.
- Another objective of the invention herein is to provide an improved cutting fixture for heat-shrink film sleeve labeling machines in which the shaft of each blade assembly blade is limited by a check plate and anchoring screws during reciprocal rotation so that 360-degree free rotation cannot occur so that the removal and installation of the said blade is not only simple, convenient, and rapid, but safer and of higher efficiency.
- Yet another objective of the invention herein is to provide an improved cutting fixture for heat-shrink film sleeve labeling machines in which the power structure provides for setting the angle of reciprocal rotation, including the cogged belt, the transmission components, and so on are which are in a state of partial contact such that when wear occurs at points of contact, adjustment and changes can be effected at those positions, which not only enables precise and positive power transmission, but at the same time provides for prolonged service life and economic value.
- FIG. 1 is an orthographic drawing of a conventional cutting fixture (1).
- FIG. 2 is a cross-sectional drawing of a conventional cutting fixture (2).
- FIG. 3 is an orthographic drawing of FIG. 2 in the driven state.
- FIG. 4 is an orthographic drawing of FIG. 2 in the driven state.
- FIG. 5 is a cross-sectional drawing of a conventional cutting fixture (3).
- FIG. 6 is an orthographic drawing of FIG. 5 in the driven state.
- FIG. 7 is a cross-sectional drawing of the cutting fixture of the invention herein.
- FIG. 8 is an orthographic drawing of FIG. 7, as viewed from the bottom.
- FIG. 9 is a cross-sectional drawing of FIG. 7, as viewed from the side.
- FIG. 10A is an orthographic drawing of the cutter shaft of the invention herein, as viewed from the front.
- FIG. 10B is a cross-sectional drawing of FIG. 10A, as viewed from the top.
- FIG. 11A is an orthographic drawing of the eccentric shaft of the invention herein, as viewed from the side.
- FIG. 11B is an orthographic drawing of FIG. 1A, as viewed from the bottom.
- FIG. 12A is an orthographic drawing of the eccentric shaft driven by the power structure, as viewed from the front.
- FIG. 12B is an orthographic drawing of FIG. 12A, as viewed from the bottom.
- FIG. 13 is a cross-sectional drawing of the locating sleeve of the invention herein.
- FIG. 14 is an orthographic drawing of check plate of the invention herein.
- FIG. 15 is an orthographic drawing of the invention herein during the clockwise rotational cutting state, as viewed from the bottom.
- FIG. 16 is an orthographic drawing of the invention herein during the counter-clockwise rotational cutting state, as viewed from the bottom.
- Referring to FIG. 7, FIG. 8, and FIG. 9, the improved cutting fixture for heat-shrink film sleeve labeling machines of the invention herein is comprised of a
mounting frame 11 disposed around the outer periphery of thecenter guide post 1 in a sleeve labeling machine that secures a plurality ofblade assemblies 80 at equal intervals apart, with one of theblade assemblies 80 directly connected to apower structure 90 providing for its reciprocal rotation at a settable angle. - Each said
blade assembly 80 consists of a cutter shaft 801 (see FIG. 11) in an upper and a lower bearing E that are seated within a corresponding hole through asupport plate 111 of themounting frame 11 to maintain it in a state of free rotation; ablade holder 802, ablade 803, and ablade cover 804 at the bottom section similar to the conventional arrangement; and aneccentric shaft 805 at the top section; after the said the said eccentric shaft 805 (see FIG. 11) is positioned by screws F, theshaft tip 8051 at the upper extremity is placed into the eccentric position of acutter shaft 801 and furthermore, each saidshaft tip 8051 is fitted into a bearing G, with screws H inserted and fastened in the corresponding holes of adrive plate 806 to thereby maintain synchronized operation; theshaft tip 8051′ (see FIG. 12) at the upper extremity of a secondeccentric shaft 805′ is inserted into a locating sleeve 807 (see FIG. 13); in addition to an offsetaxial hole 8071 that provides for theshaft tip 8051′ of the secondeccentric shaft 805′, the said locatingsleeve 807 has acutter shaft 801 arranged in line with it, with a key K fixing a timing gear L (a cogged belt gear) enabling the direct rotation of acogged belt 901 by thepower structure 90 that results in the synchronized rotation of theeccentric shaft 805, thecutter shaft 801, and theblade 803 by thedrive plate 806. Furthermore, a check plate 808 (see FIG. 14) is positioned between the bottom section of themounting frame 11support plate 111 and eachcutter shaft 801; in addition tocorresponding holes 8081 that provide for the posturing of eachcutter shaft 801, the saidcorresponding holes 808 has a radially disposedlimit groove 8082 along its circumference; when theblade 803 on the saidcutter shaft 801 is aligned with the center guide post 1 (see FIG. 8) and the radial area is aligned with thelimit groove 8082 closely arrayed threaded holes 8011 (see FIG. 10),anchoring screws 8012 are fastened therein such that they extend inward from the limit groove 8082 (see FIG. 8 and FIG. 9). - The
said power structure 90 consists of acogged belt 901 driven into reciprocal rotation by a servo-motor coupled to theblade assembly 80 timing gear L to achieve automatic clockwise and counter-clockwise operation at a set angle, or a clockwise/counter-clockwise motor circuit and sensor control, or other mechanical power structure (such as a gear box), the only requirement being the capability to reciprocally rotate theblade assembly 80 timing gear L at a set angle; however, for the embodiment of the invention herein, a presettable servo-motor that allows the adjustment of the clockwise/counter-clockwise angle of rotation is the most expedient. - When the timing gear L of the
blade assembly 80 is driven by thepower structure 90, since thedrive plate 806 synchronously rotates theremaining blade assembly 80eccentric shafts 805,cutter shafts 801, andblades 803, when thepower structure 90 induces reciprocal rotation at a set angle, theblades 803 of eachblade assembly 80 alternately project and retract in a synchronized shearing action. However, the angle of reciprocal rotation by the driven said timing gear L is dependent on the quantity ofblade assemblies 80 circularly disposed around the outer periphery of thecenter guide post 1, wherein it is only necessary to ensure that the rotational range of theadjacent blade assembly 80blades 803 have sufficient clearance to enable the full cutting of heat-shrink film around thecenter guide post 1; in the case of a large quantity ofblade assemblies 80, then the driven angle of reciprocation by the timing gear L is set lower and, conversely, if there is a lesser quantity ofblade assemblies 80, then the driven angle of reciprocation by the timing gear L must be higher, the particular results enabling theblade assembly 80blades 803 to synchronously rotate 120 degrees and thereby perform cutting operations. - The included angle □ (see FIG. 14) defined by the two ends of the
check plate 808limit groove 8082 is similarly dependent on the quantity ofblade assemblies 80 installed; however, the said included angle □ is set slightly larger than the angle of reciprocal rotation at which the timing gear L is driven so that theanchoring screws 8012 fastened thereon cannot impact the two extremes of thelimit groove 8082 when thecutter shafts 801 of each saidblade assembly 80 are reciprocally rotated. - In the said arrangement of the invention herein, referring to FIG. 15, when the
power structure 90 is preset at an angle for clockwise rotation, thecogged belt 901 drives the timing gear L of ablade assembly 80 into clockwise rotation at the set angle such that thedrive plate 806, the eccentric shafts 805 (805′), and thecutter shafts 801 are coordinatively brought into motion and all the saidblade assembly 80blades 803 synchronously rotate in a clockwise direction to execute a single cutting operation of heat-shrink film sleeving at theguide post 1; when thepower structure 90 is preset at an angle for counter-clockwise rotation, as shown in FIG. 16, then all theblades 803 of thesaid blade assembly 80 accordingly rotate in a counter-clockwise direction to cut another section of heat-shrink film. In other words, theblades 803 of the invention herein only require setting the angle of reciprocal rotation to smoothly and, furthermore, rapidly and accurately cut heat-shrink film, without requiring the 360 degrees of rotation involved in the prior art, thereby affording a significant, tangible increase in production efficiency. Moreover, the straightforward structure of the invention herein is not only capable of articulating all theblades 803 at a set angle for reciprocally rotational cutting operations, but also provides for easy, convenient, and economical manufacture, assembly, repair, and maintenance. - Since the anchoring screws8012 in each
cutter shaft 801 are fastened such that they extend inward from thelimit groove 8082 of thecheck plate 808, loading and unloading theblades 803 only requires removing theanchoring screw 8012 at one end of thelimit groove 8082 on theblade holder 802 and thecutter shaft 801, thecutter shaft 801 remaining stationary to facilitate easy, convenient, andsafe blade 803 replacement. When thepower structure 90 malfunctions and the set angle of reciprocal rotation becomes higher or 360 degree rotation occurs, the saidanchoring screws 8081 can at that time serve as preventers at thecheck plate 808limit groove 8082 that trigger a circuit-controlled relay such that the random rotation and cutting by the saidblades 803 cannot occur, which prevents mechanical damage and wear, while also greatly increasing operating safety. - Since the
power structure 90 of the invention herein provides for setting the angle of reciprocal rotation and re-orienting transmission components such as thecogged belt 901, the timing gear L, and so on are which are in a state of partial contact such that when wear occurs at points of contact, adjustment and changes can be effected at those positions to enable continued utilization without requiring parts replacement; as such, the service life of structural components is prolonged for better economic efficiency.
Claims (5)
1-4. (Canceled).
5. A cutting fixture for a beat-shrink film sleeve labeling machine comprising:
a mounting frame disposed about a center guide post;
a plurality of blade assemblies coupled to said mounting frame spaced one from the other, each said blade assembly including a cutter shaft and an eccentric shaft extending therefrom, each said blade assembly having at least one blade extending radially from said cutter shaft and an anchoring screw disposed adjacent thereto, at least a first of said blade assemblies being driven by direct connection to a power structure;
said power structure including a timing gear engaging said first blade assembly for imparting a driving force thereto, whereby said first blade assembly is reciprocally rotated within a settable angle limit;
a drive plate extending between said eccentric shafts of said blade assemblies for transferring the driving force between said blade assemblies, said blade assemblies being operably coupled thereby for reciprocal rotation in substantially simultaneous manner; and,
a check plate coupled to said mounting frame and extending between said cutter shafts of said blade assemblies, the said check plate having a plurality of corresponding holes respectively receiving said cutter shafts, and a plurality of limit grooves each spaced radially from and extending arcuately about a respective one of said corresponding holes, each said limit groove slidably receiving said anchoring screw of one said blade assembly for maintaining the reciprocal rotation thereof within the settable angle limit.
6. The cutting fixture as recited in claim 1, wherein each said limit groove of said check plate defines an angular limit greater than the settable angle limit for the reciprocal rotation of said blade assemblies.
7. The cutting fixture as recited in claim 1, wherein said power structure includes a servo-motor reversibly operable to drive clockwise and counter-clockwise rotations within the settable angle limit.
8. The cutting fixture as recited in Claim 1, wherein said power structure includes a motor reversibly operable to drive clockwise and counter-clockwise rotations.
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US10/453,496 US6829971B1 (en) | 2003-06-04 | 2003-06-04 | Cutting fixture for heat-shrink film sleeve labeling machines |
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US10/453,496 US6829971B1 (en) | 2003-06-04 | 2003-06-04 | Cutting fixture for heat-shrink film sleeve labeling machines |
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US20040244559A1 true US20040244559A1 (en) | 2004-12-09 |
US6829971B1 US6829971B1 (en) | 2004-12-14 |
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US10/453,496 Expired - Fee Related US6829971B1 (en) | 2003-06-04 | 2003-06-04 | Cutting fixture for heat-shrink film sleeve labeling machines |
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EP2653398A1 (en) * | 2012-04-19 | 2013-10-23 | Krones AG | Directly driven rotary knives for tubular film |
EP2886476A1 (en) * | 2013-12-23 | 2015-06-24 | P.E. Labellers S.p.A. | Device for cutting labels for labeling machines with sleeve labels |
CN105058451A (en) * | 2015-09-16 | 2015-11-18 | 成都爆米花信息技术有限公司 | Dividing and cutting machine |
CN107953418A (en) * | 2017-12-21 | 2018-04-24 | 张树军 | A kind of efficiently fillet square type ground cushion automatic cutting machines gang tool |
CN110293601A (en) * | 2019-07-09 | 2019-10-01 | 张子和 | A kind of tubing shear of fixation progress synchronous with shearing |
CN112356118A (en) * | 2020-10-16 | 2021-02-12 | 台州学院 | Plastic pipe cutting device |
US20220274147A1 (en) * | 2019-07-10 | 2022-09-01 | Ok Tae Kim | Duct cutting-and-forming device for elbow duct manufacturing device |
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US7275469B2 (en) * | 2004-07-14 | 2007-10-02 | Axon Llc | Planetary tubing cutter |
US7343842B2 (en) * | 2004-10-28 | 2008-03-18 | Axon Llc | Apparatus for cutting film tubing |
US9227335B2 (en) | 2013-12-03 | 2016-01-05 | Axon Llc | System and method for cutting tubular shrink sleeve material for application to containers |
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Cited By (10)
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EP2653398A1 (en) * | 2012-04-19 | 2013-10-23 | Krones AG | Directly driven rotary knives for tubular film |
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EP2886476A1 (en) * | 2013-12-23 | 2015-06-24 | P.E. Labellers S.p.A. | Device for cutting labels for labeling machines with sleeve labels |
ITVR20130291A1 (en) * | 2013-12-23 | 2015-06-24 | Pe Labellers Spa | LABEL CUTTING DEVICE FOR LABELING MACHINES WITH SLEEVE LABELS |
CN105058451A (en) * | 2015-09-16 | 2015-11-18 | 成都爆米花信息技术有限公司 | Dividing and cutting machine |
CN107953418A (en) * | 2017-12-21 | 2018-04-24 | 张树军 | A kind of efficiently fillet square type ground cushion automatic cutting machines gang tool |
CN110293601A (en) * | 2019-07-09 | 2019-10-01 | 张子和 | A kind of tubing shear of fixation progress synchronous with shearing |
US20220274147A1 (en) * | 2019-07-10 | 2022-09-01 | Ok Tae Kim | Duct cutting-and-forming device for elbow duct manufacturing device |
CN112356118A (en) * | 2020-10-16 | 2021-02-12 | 台州学院 | Plastic pipe cutting device |
CN116787499A (en) * | 2023-08-17 | 2023-09-22 | 南通百正电子新材料股份有限公司 | Wafer cutter of polypropylene capacitance film splitting machine |
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