GB2163719A - Package handling apparatus - Google Patents
Package handling apparatus Download PDFInfo
- Publication number
- GB2163719A GB2163719A GB08526281A GB8526281A GB2163719A GB 2163719 A GB2163719 A GB 2163719A GB 08526281 A GB08526281 A GB 08526281A GB 8526281 A GB8526281 A GB 8526281A GB 2163719 A GB2163719 A GB 2163719A
- Authority
- GB
- United Kingdom
- Prior art keywords
- packages
- guide
- package
- transfer
- conveyor
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M3/00—Investigating fluid-tightness of structures
- G01M3/02—Investigating fluid-tightness of structures by using fluid or vacuum
- G01M3/36—Investigating fluid-tightness of structures by using fluid or vacuum by detecting change in dimensions of the structure being tested
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Specific Conveyance Elements (AREA)
Abstract
Apparatus for conveying packages containing a product such as potato crisps to a conveyor 16 and for facilitating rejection of sub-standard packages comprises a vertical guide 14 down which packs fall to a transfer station 15 at the lower end thereof. The transfer station is defined by the guide and a movable support 17 having spaced fingers 18 and 19. A transfer arm 21 is arranged to swing upward and outward from a package collection position between the fingers 17 and 18 shown in ghost at 221 to a package deposit position as shown in full at 22 for depositing packages on the conveyor. Means are provided for retracting the movable support 17 from the guide 14, both to facilitate regular transfer of a satisfactory packages on the transfer arm 22 and to allow a substandard package to drop out from the base of the guide without being picked up by the transfer arm. <IMAGE>
Description
SPECIFICATION
Package handling apparatus
The invention relates to package handling apparatus and in particular to apparatus for transferring satisfactory packages to a conveyor while facilitating rejection of sub-standard packages.
The packages with which the invention is concerned are for example potato crisp packs in the form of a sealed bag having two opposite rectangular faces, the bag containing the potato crisps and also some air which tends to prevent undue collapse of the bag. Other kinds of products are packaged in similar bags and as will be evident, the invention could also be applied to packages for other products.
In the packaging of potato crisps, there is some tendency to produce empty or underfilled packages and to produce some packages which have an unacceptably large air leak, possibly by being ineffectively sealed or completely unclosed. These sub-standard packages tend to occur at random amongst satisfactory packages and if the packaging apparatus has to be stopped every time a sub-standard package is detected, the output of the packaging apparatus is reduced. It is also disadvantageous to fail to detect sub-standard packages because these can eventually lead to customer complaints.
An object of the present invention is to provide package handling apparatus which facilitates detection of unsatisfactory packages and which does this in such a way that the apparatus does not have to be stopped to clear away the sub-standard package.
According to the invention there is provided an apparatus for conveying packages to a conveyor and for facilitating rejection of substandard packages comprising a guide down which packages can pass, a transfer station at the base of the guide defined by the guide and a movable support having spaced support fingers, a transfer arm arranged to swing upward and outward from a package collection position between the fingers to a package deposit position for depositing packages on the conveyor and means for retracting the movable support from the guide, both to facilitate regular transfer of a satisfactory package and to aliow a sub-standard package to drop out from the base of the guide without being picked up by the transfer arm. The apparatus may incorporate a transfer arm provided with suction cups.
The transfer arm may be linked to a mechanism which transfers packages from one probing station to a next probing station such that the apparatus for conveying packages to the conveyor and the transfer of packages between probing stations act in synchronism.
An embodiment of the invention will now be described with reference to the accompanying drawings in which: Figure 1 is a perspective view showing the general layout of the apparatus; and
Figure 2 is a diagrammatic side elevation of the part of the apparatus associated with testing for leaks.
The apparatus shown in Figs. 1 and 2 is concerned particularly with the handling of packs of potato crips as shown at 11, 12 and 13 in Fig. 2.
Referring particularly to Fig. 1, potato crisps are packaged into conventional two-faced rectangular packs containing some air as well as the crisps immediately above a vertical guide 14. Guide 14 terminates at its lower end in a transfer station 15 from which packs aretransferred to a conveyor 16 in a manner to be described subsequently. A movable support 17 with spaced fingers 18 is arranged to retract cyclically by guide means (not shown) from the position shown in full to the position shown in ghost. The part of the movable support 17 which defines the lower edge of the transfer station is two inclined portions 19 of fingers 18 and this inclination ensures that the movable support 17 can not in itself carry a package when it is removed from the guide 14.
A transfer arm 21 carries a series of suction cups 22 intended to grip a crisp pack when suction is applied to enable the transfer arm to carry the pack. The transfer arm is pivotted at 23 to a reciprocable beam 24 and has further guidance means (not shown) to ensure that during reciprocation between the vertical position shown in full and the horizontal position 221 shown in ghost, it swings as illustrated between the vertical and horizontal positions as well as reciprocating laterally.
Conveyor 16 incorporates a table 25 of which only one half is shown in Fig. 1. The table has a second half, which is a symmetrical mirror image of the first half on the opposite side of the conveyor axis represented by the axis of reciprocable beam 24. This second half of the table is removed from the drawing for purposes of clarity. In its vertical position, transfer arm 21 has its suction cups 22 in a gap between the two sides of the conveyor table 25 and this constitutes a deposit position for depositing packages on the conveyor.
Table 25 can be raised and lowered as indicated by vertical arrow 26 in Fig. 2, and lifting of table 25 in conjunction with removal of suction from cups 22 lifts the pack of crips clear of transfer arm 21 and completes transfer of the pack the conveyor.
The position of the suction cups 22 in relation to the transfer station 15 is such that in the case of a badly malformed pack, for example an empty and completely unsealed pack, the suction cups do not engage with the pack and so do not transfer it away from the transfer station. Then, as the arm 21 is swung away from its position shown in ghost and guide 17 moves towards the position shown in ghost, thereby opening the lower end of the transfer station, the malformed pack drops away. Similarly unpacked or spilled crisps also drop clear of the apparatus.
As shown in both Figs. 1 and 2, reciprocable beam 24 of conveyor 16 carries suction cup heads 27, 28 and 29 in addition to the transfer arm 21. These suction cup heads are all arranged at equal spacings corresponding to the stroke of the beam 24 and, as will be explained in more detail later, the spacing between successive probing stations. Packs of crisps are indexed along the conveyor 25 by indexing the suction cup heads to the left in the drawings with the table 25 raised, lowering the table and applying suction to all the heads and so to support the packs on the suction cups, returning the beam 24 to its rightward position whilst carrying the packs and then re-depositing the packs on the table by raising the table and removing the suction.
Suction cup head 27 has an arm 20 with a cam peg 30 running in a groove (not shown) so that during reciprocation the head 27 rotates through 90 and thus swings each pack of crisps through 90 so that it is placed on the conveyor in the desired orientation.
Suction to all the suction cups is applied through passages (not shown) in the beam 24.
Fig. 2 shows three probing stations 31, 32 and 33 at each of which there is positioned a pack of crisps 11, 12, 13. A probing head is arranged at each probing station and the probing head 34 at station 31 will be described in detail. A support plate 35 is arranged to be reciprocated up and down cyclically by means not shown. The support plate has nine probes 36 arranged in three rows of three probes so that only three of the probes are shown. Each probe incorporates a plunger 37 which slides in a bore in the support plate 35 and has a rounded lower end so that it can engage the pack of crisps without damaging it. Each probe also carries a weight 38 which determines the downward force of each probe on the pack of crisps.On raising the support plate 35, weight 38 or another stop provided on each probe causes all the probes to be lifted up by the support plate so that all the probes are clear of a pack of crisps. On lowering the support plate, all the probes are applied to a pack of crisps directly under the probes with a force determined by the weight 38. All nine probes at each probing station are applied for a pre-determined period, sufficient to cause some air to be expelled from the pack if it has a significant leak. By utilising more than one probing station and passing the packs through each station in series, an opportunity is provided for the crisps to be shaken down and to prevent one or more awkwardly positioned crisps from holding the probe in a high position as suggested by the probe on the right at probing station 31. If desired four or even more probing stations may be provided in series.In Fig. 2, the two packs of crisps 11 and 12 are shown to have normal thickness, suggesting that they are both satisfactorily sealed although for pack 11 in particular, there is the possibility that it will deflate during further probing. Fig. 2 also shows pack 13 which has deflated due to the progressive action of probes at stations 31, 32 and 33 and clearly incoiporates a leak.
Probe position sensing equipment illustrated diagrammatically at 39 is provided at the probing station 33 to indicate whether the probes have moved down beyond the position such as that shown at station 32. Excessively low probes, as shown at station 33 are indicative of a sub-standard pack and in this case the pack 13 would be rejected automatically in response to a signal generated by the probe position sensing equipment 39.
Satisfactory packs of crisps are conveyed further along the system, for example to equipment for packing the packs into cartons.
As an alternative to raising and lowering support plates 35, the raising and lowering of table 25 may be used to bring the probes and packs into and out of engagement with each other. In such a case, the probe position sensing equipment causes rejection of a pack if one of the associated probes fails to lift sufficiently.
Claims (4)
1. Apparatus for conveying packages to a conveyor and for facilitating rejection of substandard packages comprising a guide down which packages can pass, a transfer station at the base of the guide defined by both the guide and a movable support having spaced support fingers, a transfer arm arranged to swing upward and outward from a package collection position between the fingers to a package deposit position for depositing packages on the conveyor and means for retracting the movable support from the guide both to facilitate regular transfer of a satisfactory package and to allow a substandard package to drop out from the base of the guide without being picked up by the transfer arm.
2. Apparatus according to Claim 1 wherein the transfer arm carries suction cups for engagement with the package.
3. Apparatus according to either of the preceding claims wherein the transfer arm is linked to a mechanism which transfers packages from one probing station to a next probing station such that the apparatus for conveying packages to the conveyor and the transfer of packages between probing stations act in synchronism.
4. Apparatus for conveying packages to a conveyor and for facilitating rejection of substandard packages substantially as described herein with reference to and as illustrated in the accompanying drawings.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB08526281A GB2163719B (en) | 1983-04-16 | 1985-10-24 | Package handling apparatus |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB08310367A GB2138150B (en) | 1983-04-16 | 1983-04-16 | Package leak testing apparatus |
GB08526281A GB2163719B (en) | 1983-04-16 | 1985-10-24 | Package handling apparatus |
Publications (3)
Publication Number | Publication Date |
---|---|
GB8526281D0 GB8526281D0 (en) | 1985-11-27 |
GB2163719A true GB2163719A (en) | 1986-03-05 |
GB2163719B GB2163719B (en) | 1986-06-18 |
Family
ID=26285849
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB08526281A Expired GB2163719B (en) | 1983-04-16 | 1985-10-24 | Package handling apparatus |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB2163719B (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2191163A (en) * | 1986-05-27 | 1987-12-09 | Hulbritt Dev Ltd | Article transfer device |
US20220386655A1 (en) * | 2017-10-19 | 2022-12-08 | Harold Dail Kimrey, JR. | Contact members for packaged articles heated with radio frequency energy |
-
1985
- 1985-10-24 GB GB08526281A patent/GB2163719B/en not_active Expired
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2191163A (en) * | 1986-05-27 | 1987-12-09 | Hulbritt Dev Ltd | Article transfer device |
US20220386655A1 (en) * | 2017-10-19 | 2022-12-08 | Harold Dail Kimrey, JR. | Contact members for packaged articles heated with radio frequency energy |
US11856976B2 (en) * | 2017-10-19 | 2024-01-02 | Harold Dail Kimrey, JR. | Contact members for packaged articles heated with radio frequency energy |
Also Published As
Publication number | Publication date |
---|---|
GB2163719B (en) | 1986-06-18 |
GB8526281D0 (en) | 1985-11-27 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
732E | Amendments to the register in respect of changes of name or changes affecting rights (sect. 32/1977) | ||
PCNP | Patent ceased through non-payment of renewal fee |
Effective date: 19960416 |