JPS6112275A - Stem part holding means for device for cutting stem of fruit - Google Patents

Abstract

PURPOSE:The titled holding means to pull down and to hold a tem part of fruit, wherein a pair of the front and rear holding pieces of stem part are raised and dropped by a horizontal lifting and lowering motion of a pair of the front and rear rotary shafts, the holding pieces are opened by revolutions of both the rotary shafts, and closed by the force of a spring. CONSTITUTION:The front and rear rotary shafts 24a and 24b are lifted or lowered and transferred through the horizontally shaking arms 25a, 25b, 26a, and 26b horizontally to the drive chain 23 by shaking the inverted cam arm 38 against the drive chain, consequently a pair of the holding pieces 27a and 27b supported through the on-off levers 28a and 28b are lifted or lowered and transferred against a rotary path of the drive chain 23. The revolving shafts 24a and 24b turn on their axes in the opposite directions each other through the interlocking means 33 by shaking the inverted can arm 41 against the drive chain 23, consequently, a pair of the holding pieces 27a and 27b supported through the on- off levers 28a and 28b are opened and closed. Consequently, the stem part of fruit is pulled down, and an action to keep the lowered state can be carried out.

Description

[Detailed Description of the Invention] (Industrial Application Field) Fruits such as pears are protected by covering them with paper bags to prevent insect damage during the ripening stage. The open end of this paper bag is tied to the stem of the fruit with a fastener such as a wire, and is collected together with the fruit during harvest. Such bagged fruit needs to be removed from the bag before being packed into sorting boxes, and the stems are cut off during removal from the bag.

In order to streamline the work of cutting and removing the stems of such wrapped fruits, a so-called stem cutting and removing bag machine has been developed.
This invention relates to a stem clamping means of a fruit stem cutting device that can be used in such a stem cutting and bagging machine.

(Prior art and its problems) A fruit stem cutting device used for the above purpose cuts the stem 2 of a covered fruit 1 into the open end of a covered paper bag 3, as shown in FIG. 3a is cut at a position between the fruit 1 and a stopper 4 such as a wire tied to the stem 2. However, in the conventional stem cutting device, the wrapped fruit is cut in the tray part of the conveyor. The receiver supports the stem of the enveloped fruit protruding downward from the bottom hole of the dish by moving the cutting blade rotating in a fixed position relative to the stem of the enveloped fruit. Since the cutting is done with the body, the stem is not held at all during cutting, so the stem is unstable during cutting, and the stem tilts when it comes into contact with the cutting blade, resulting in poor cutting. There was a drawback that this occurred.

(Means for Solving the Problems) The present invention provides a stem clamping means that can be used to solve the conventional problems as described above. A pair of front and rear rotating shafts that can be raised and lowered in parallel are installed between the drive engine via a parallel swinging arm, and stem clamping pieces are supported on the pair of front and rear rotating shafts via respective opening/closing levers. and a spring that urges the opening/closing lever in the closing direction. A cam that moves the shaft up and down in parallel, and a cam that opens the opening/closing lever against the biasing force of the spring via a cam driven arm connected from one of the pair of rotating shafts, are connected to the movement path of the drive chain. It is located at a point along which the bridge was constructed.

(Function) In the above-mentioned stem holding means, the pair of front and rear rotating shafts that move together with the drive chain as the drive chain rotates changes the distance between the two cams and the drive chain. As a result, each cam driven arm is swung in response to the movement, and as a result, it moves up and down in parallel at a predetermined position, and at a predetermined position, it moves in the direction of resisting the biasing force of the spring and in the direction of the biasing force of the spring. It is rotated in the opposite direction.

This parallel vertical movement of the pair of front and rear rotating shafts causes the pair of front and rear stem clamping pieces to move up and down, and the rotation of both rotational shafts causes the stem clamping pieces to open against the biasing force of the spring or to open the stem clamping pieces against the biasing force of the spring. It closes with . Utilizing the vertical movement and opening/closing movement of the pair of front and rear stem holding pieces, the fruit stem to be cut can be pulled down and held in a pulled down state.

(Example) An example of the present invention will be described below based on the attached examples.

In FIG. 2, numeral 5 denotes a bagged fruit conveyor in the stem cutting device, 6 a stem clamping means, 7 a stem cutting device, and 8 a bagged fruit fixing means in the stem cutting device. A bag removal means that also serves as a means for transferring the bagged fruit from the stem cutting device to the bag removal device, 9 is a cut stem collecting section, 10 is a conveyor for conveying the bagged fruit in the bag removal device, and 11 is a paper bag suction duct. It is.

As shown in FIG. 3, the bagged fruit transport conveyor 5 has the drive plates 13 installed in parallel between a pair of left and right drive chains 712, and circular bottom holes 1 are formed in two places on the left and right on each slat plate 13.
4 is a rubber plate that covers the inner surface of the dish portion 15, and is detachably mounted on the slat plate 13.

This is a guide rail that supports the horizontal transport path section 18 on the road. As shown in FIG. 2, the drive chain 12 is operatively connected to a drive motor 19 via a transmission chain 20.21.

As shown in FIG. 2, the stem gripping means 6 is stretched at a position below the rear half of the horizontal conveyance path section 18 of the bagged fruit conveyor 5, and is connected to the drive motor 19, the transmission chain 20,
The left and right drive chains 2 are interlocked and connected via 22.
It has 3. As shown in FIGS. 3 to 5, the slat plate 13 of the bagged fruit conveyor 5 is located between the drive chains 723. ! :'In the same pinch, a pair of parallel rotating shafts 24a' and 24b, which can be raised and lowered in parallel, are installed via parallel swing arms 25a, 25b and 26a, 26b. On the rotating shafts 24a and 24b, the two rows of right and left receivers in the horizontal conveyance path section 18 of the bagged fruit conveyor 5 are provided with 1. Opening/closing levers 28a, 28 with clamping pieces 27a, 27b at their upper ends, respectively.
b is attached.

29a, 29b and 30a, 30b are chain links 23a, 2 of the left and right drive chains 23 facing each other.
A swing arm 25a that supports both ends of the one rotation shaft 24a is attached to one of the chain pin extension parts 29a and 29b, which protrudes inward from both ends of the chain pin extension part 3b.
, 25b are fixed near both ends of the support shaft 31. Both ends of the support shaft 31 are supported concentrically and rotatably, and the other chain pin extension 30
Swing arms 26a and 26b, which support both ends of the other rotating shaft 24b, are pivotally attached to a and 3Qb. 32a, 32b are the pair of front and rear rotating shafts 24a, 24.
It is a spacing link that connects the two state portions of b to each other,
33 is the pair of rotating shafts 24a.

24b are interlocked so as to rotate in opposite directions. This interlocking means 33 has a pin 35 extending laterally from the tip of an arm 34 fixedly protruding from one rotating shaft 24a.
A four part 37 into which the pin 35 fits is formed at the tip of an arm 36 fixedly protruding from the other rotating shaft 24b so as to be concentric with each other.

38 is one swing lever 25a that supports the rotating shaft 24a.
A cam driven roller 39, which is a cam driven arm integrally connected to the cam driven arm and is pivotally supported at the tip thereof, is fitted into a grooved cam 40 for lifting and lowering the gripping piece installed along the circulation path of the drive chain 23. Reference numeral 41 denotes a cam driven arm fixedly connected to one arm 34 of the interlocking means 33, and a cam driven roller 42 pivotally supported at the tip of the cam driven arm 41 is positioned at an appropriate position in the circulation path of the drive chain 23. A tension coil spring 45 is stretched between a pin 44 protruding from the support shaft 31 and the cam follower arm 41 so as to come into contact with a plate cam 43 for opening and closing the clamping piece disposed on the cam follower arm 41 . The tensile force of the spring 45 is applied to the pair of front and rear opening/closing levers 28a through the interlocking means 33 and the pair of front and rear rotating shafts 24a, 24b.
, 28b in the closing direction. 46a and 46b are a pair of upper and lower guide rails that sandwich and guide the drive engine 23 from above and below.

By swinging the cam driven arm 38 with respect to the drive chain 23, the stem holding means 6 configured as described above is connected to a pair of front and rear rotating shafts via the parallel swing arms 25a, 25 and 26a, 26b. 24a and 24b are the drive chain 2
Move up and down parallel to 3. This rotating shaft 24a, 2
4b, the opening/closing levers 28a, 28b are
A pair of clamping pieces 27a and 27b supported through the holder move up and down with respect to the rotation path of the drive chain 23. Also, the cam driven arm 41 is connected to the drive chain 23.
By swinging, the pair of front and rear rotating shafts 24a and 24b rotate in opposite directions via the interlocking means 33.

Due to the rotation of the rotating shafts 24a and 24b, the opening/closing lever 2
A pair of clamping pieces 27 supported via 8a and 28b
a and 27b will move to open and close.

Therefore, by rotating the drive chain 23 by the drive motor 19, the pair of front and rear clamping pieces 27a, 27b will rotate along the endless circulation path shown in FIG. By changing the relative positions of the gripping piece elevating groove cam 40 and the gripping piece opening/closing plate cam 43 with respect to the path, each of the gripping pieces 27a, 27b, which rotates together with the drive chain 23, can be moved along any movement path. It can be raised and lowered and opened and closed in the following positions.

The cut stem collecting section 9 is provided with a flat belt conveyor 9a disposed laterally just below the stem holding means 6, as shown in FIGS. A fixed guide plate 9b is stretched along the rotation locus of the rotating clamping pieces 27a and 27b. The flat belt conveyor 9a is interlocked with the drive motor 19.

As shown in the second section, the stem cutting means 7 is disposed near the end of the horizontal conveyance path section 18 of the bagged fruit conveyor 5 and below the horizontal conveyance path section 18. As shown in the figure, it includes a horizontally rotating cutting blade 48 directly connected to a drive motor 47, and a pair of left and right stem guide plates 49a and 49b.

The horizontal rotary cutting blade 48 has two rows of left and right receivers in the conveyor 5 whose vertical axes of rotation are located at the center of the lower side of the moving path of the tray portion 15 , and two rows of left and right receivers are located at the center of the lower side of the travel path of the tray portion 15 . It has a diameter that allows cutting both the enveloped fruit stems protruding from the bottom hole 14 at the same time. In the pair of left and right stem guide plates 49a and 49b, the two rows of left and right receivers are respectively disposed below the movement path of the dish portion 15.

As shown in FIG. 2, the bag removing means 8, which serves both as a means for fixing the bagged fruit and a means for transferring the bagged fruit from the stem cutting device to the bagging device, is connected to a horizontal conveyance path in the bagged fruit conveyor 5 as shown in FIG. Part 1
8 to an upper position of the front half of the bag removing device bag fruit transport conveyor 10 arranged so as to be continuous at approximately the same level with respect to the horizontal transport path section 18, A pair of left and right drive chains 51 are interlocked and connected to the drive motor 19 through a transmission chain 20°50.
driven by. As shown in FIGS. 3 and 6, a finger unit 52 that is rotated up a predetermined path by the drive chain 51 and performs lifting and lowering movements and opening/closing movements is used to horizontally transport the wrapped fruit transport conveyor 5. The respective receivers in the path portion 18 are provided in two rows on the left and right so as to correspond to the tray portions 15.

The bagged fruit transport conveyor 10 of the bag removal device is operatively connected to a drive motor 19 via a transmission chain 20.53, as shown in FIG.

Next, the method of use and operation will be explained. The groove cam 40 for lifting and lowering the gripping piece and the plate cam 43 for opening and closing the gripping piece in the stem gripping means 6 are as explained below. configured to work.

First, the drive motor 19 is operated, and all the means connected thereto, namely, the bagged fruit conveyor 5 of the stem cutting device, the stem clamping means 6, the bag removal means 8, and the cut stem collecting section 9 are transferred to the flat surface. The route conveyor 9a and the bagged fruit transport conveyor 10 at the unbagging position g are synchronously rotated in the direction shown by the arrow in FIG. Further, the drive motor 47 of the stem cutting means 7 is operated to rotate the horizontal rotary cutting blade 48.

The covered fruit 1 shown in FIG. As shown in Figure 6, the receiver is located in the bottom hole 14 of the dish part. It is placed so that the stem part 2 protrudes downward. This receiver receives the stem part pulling down holding action of the stem part holding means 6 in the latter half of the horizontal conveyance path part 18 when the enveloped fruit 1 is conveyed while being fitted and supported by the dish part 15. .

That is, as shown in FIG. 6a, the pair of front and rear clamping pieces 27a and 27b of the stem clamping means 6 are raised in an open state to a forward path parallel to the horizontal conveyance path section 18 of the conveyor 5. Enter while doing so. The receiver is the bottom hole 14 of the dish portion 15.
When the enveloped fruit stem part 2 protruding from the front and back enters between the front and rear pair of clamping pieces 27a and 27b which are at a rising height and in an open state, the pair of clamping pieces 27a as shown in FIG.

27b is moved to close by the biasing force of the spring 45 at the rising height, and the stem portion 2 is connected to the pair of clamping pieces 27a.

27b.

The clamping pieces 27a and 27b that clamp the stem 2 are connected to the conveyor 5.
The receiver descends as shown in FIG. 6C while moving at the same speed as the dish portion 15, and handles the stem portion 2 downward. Due to this handling action, the bagged fruit 1 is drawn into the tray part 15, and at the same time, the paper bag opening end 3a and the stopper 4 are pulled down relative to the stem part 2. The clamping piece 27a has reached the descending height, '27
b is the sixth. The clamping pieces 27a and 27b, which have reached the raised height in the opened state like a body in FIG. The same stem part 2 that is being held, that is, the stem part 2 that has undergone the first handling action, is held from the front and back.Then, as shown in step 57e, it descends again and performs the second handling action on the same stem part 2. .

By the two handling actions of the stem gripping pieces 27a and 27b described in 1., the receiver holds the enveloped fruit 1 placed on the tray part 15.
The support is drawn into the tray part 15 and centered, and at the same time the paper bag opening end 3a tied to the stem part 2
and the stopper 4 are fully pulled down along the stem 2.

The enveloped fruit 1 that has undergone this second handling action on the stem 2 is
Immediately thereafter, the stem 2 is cut at the root position by the horizontal rotating cutting blade 48 of the stem holding means i.
The fixed cost for the horizontally rotating cutting blade 48 is □ between the stem guide plates 49a and 49b that act as blades, and 2
A pair of clamping pieces 2' at the descending height immediately after the second handling action? a, 27b together with the paper bag opening end 3a and the stopper 4 are held in a pulled down state.

On the other hand, the bagged fruit 1 whose stem portion 2 is cut by the horizontal rotary cutting blade 48 as described above is fixed by the finger unit 52 of the bag removing means 8 from immediately before the cutting to the end of the cutting operation.

The stem 2 which has been cut off from the bagged fruit 1 by the stem cutting means 7 and which is held between the pair of holding pieces 27a and 27'b, together with the paper bag opening end 3a and the stopper 4 which have been cut into pieces, Cut stem collection part 9 as shown in Figures gh-h
The clamping piece 27a up to the top of the flat Heltconhe t-9a,
27b, is dropped onto the flat conveyor 9a by the opening of the clamping pieces 27a and 27b, and is discharged to the side of the machine by the flat conveyor I/conveyor 9.

On the other hand, the finger unit 1-52 of the bag removal means 8 which was fixing the bagged fruit 1 whose stem portion 2 is to be cut on the tray portion 15
is opened after cutting the stem, and after descending as shown in Fig. 6f, it is closed again by the biasing force of the spring.
The receiver grips the enveloped fruit 1 on the dish portion 15 at three locations in the lower circumferential direction. After this, Finger Unino I・52 has a tray part 1.
The receiver of the conveyor 5 lifts the wrapped fruit 1 from the tray part 15'2 and conveys it to the wrapped fruit conveyor 10 side. And this conveyor 1
The bagged fruit 1 whose stem has been cut is conveyed on the paper bag 3 is subjected to a bag removal action by the vertical opening and closing movement of the finger unit 52 in the bag removal means 8, and finally the paper bag 3 is removed from the fruit. When the fruit left in a hat shape moves directly under the paper bag suction duct 11, the paper bag 3 remaining on the fruit is suctioned and removed by the duct 11.

In the above embodiment, two lines for conveying the bagged fruit 1 are arranged in parallel, and the stem cutting and bag removal process is performed between each line. However, a single line or three or more lines may be used. is also possible. In this case, in the stem cutting means B, opening/closing levers 28a and 28b may be attached to the pair of front and rear rotating shafts 24a and 24b in accordance with the number of rows of the conveyance line.

(Effects of the Invention) According to the stem clamping means of the present invention which can be implemented and used as described above, the stem clamping means is disposed under the fruit conveyance path and includes a cam for vertically moving the pair of front and rear rotating shafts. By arbitrarily setting the shape of the cam for rotating the rotation shaft, for example, as shown in the example, the stem of the fruit being conveyed can be pulled down before cutting, and the stem that has been pulled down until the cutting is completed. It can be effectively used as a means to hold it as it is and to assist in ensuring that the cutting action is carried out reliably.

Moreover, according to the configuration of the present invention, the pair of front and rear rotating shafts are moved up and down in parallel using a parallel swing arm, so compared to the case where the pair of front and rear rotational shafts are supported to move up and down vertically. It has a simple structure and can be moved up and down smoothly. In addition, as mentioned above, since a pair of front and rear rotating shafts that perform parallel vertical movement and rotational movement are installed between the drive chain, the pair of front and rear stem clamping pieces can be placed at any position on this rotating shaft via an opening/closing lever. It is possible to accurately determine the relative positions of the pair of front and rear clamping pieces in the left and right lateral directions with respect to the fruit stem on the conveyance line.

[Brief explanation of drawings]

Figure 1 is a longitudinal side view of a bagged fruit, Figure 2 is a schematic side view of the entire stem cutting and bagging machine, and Figure 3 is a bagged fruit conveyor, stem holding means, stem cutting means, and bag removal. Fig. 4 is a plan view showing the main parts of the stem clamping means, Fig. 5 is a longitudinal sectional side view of the respective parts, and Fig. 60 explains the stem pulling down and holding function. FIG. 1... Enveloped fruit, 2... Stem, 3... Paper bag, 3a
... Paper bag opening end, 4... Stopper, 5, 10... Enveloped fruit conveyor, 6... Stem clamping means, 7... Stem cutting means, 8... Enveloped fruit Bag removal means serving both as a fixing means and a transfer means, 9...Cut stem collecting section, 11...
・Paper bag suction duct, 12, 23.51... Drive check 7
．． 13...Slat plate, 14...Bottom hole, 15...
The receiver is the plate part, 19.47... Drive motor, 24a, 2
4b... A pair of rotating shafts that move up and down in parallel, 25a-2
6b...Parallel swinging arm, 27a, 27b...Pair of clamping pieces, 2Ba, 29b...-Opening/closing lever,! ?
... Support shaft, 32a, 32b... Link for spacing,
33... Interlocking means, 38.41... Cam driven arm, 39.42... Cam driven roller, 4o... Groove cam for lifting and lowering the clamping piece, 43... Plate cam for opening and closing the clamping piece, 45
... Spring for closing the clamping piece, 48... Horizontal rotating cutting blade body, 49a, 49b... Stem guide plate, 52...
finger unit.

Claims (1)

[Claims] A pair of front and rear rotating shafts that can be raised and lowered in parallel are installed between a pair of left and right drive chains via a parallel swing arm, and a stem clamping piece is supported on the pair of front and rear rotating shafts via respective opening/closing levers. An interlocking means for interlocking the rotating shafts in mutually opposite rotational directions, and a spring for biasing the opening/closing lever in the closing direction are provided, and the pair of parallel swinging arms is connected to each other via a cam driven arm connected from one of the parallel swinging arms. A cam for vertically moving the rotating shaft in parallel, and a cam for opening and closing the opening/closing lever via a cam driven arm connected from one of the pair of rotating shafts are installed along the movement path of the drive chain. A stem clamping means for a fruit stem cutting device.