JP6271236B2 - Container supply device - Google Patents

Description

  The present invention relates to a container supply device that supplies a plurality of paper or plastic containers in a stacked state.

  In such a container supply device, when there are too many stacked containers, so-called clogging occurs, and it is difficult to separate the containers one by one from the superposed containers. On the other hand, the container supply device disclosed in Patent Document 1 is configured to divide the containers into a predetermined number of container groups and supply them to the subsequent process so as not to cause clogging. Specifically, the holding unit that holds and transports the container group includes a table and a holder for holding the container group, and a linear actuator that advances and retracts these in the horizontal direction, and the table, the holder, and the linear actuator move up and down. It is driven up and down by the device.

JP 2007-302305 A

  In the container supply device described above, the table, the holder, and the linear actuator are configured to move up and down, so that the load on the motor that is the lifting device is large. Therefore, it is necessary to increase the size of the motor, which causes a problem that the manufacturing cost of the container supply device is increased.

  An object of the present invention is to reduce the manufacturing cost by simplifying and reducing the configuration of a portion that is driven up and down in a container supply device.

The container supply device according to the present invention is configured to guide a container along a guide path surrounded by a guide member extending in the vertical direction, and is provided at a lower end of the guide means, and supports a plurality of stacked containers. And a container separating means for separating at least one container from a plurality of supported containers , a support member having a support part for supporting the lower surface of the container , and an engagement in which the support member positions the support part in the guide path A support member moving means for moving the support member in a direction intersecting the guide path of the guide means, and a side where the support member comes into contact with the lower surface of the container of the support portion so as to have a retracted state positioned outside the guide path. and a support member elevating means for reciprocating the elevating along the guide path in a state facing upward, to support the required number of containers on the support member which is engaged with the receiving position of the guide route upward, the support After moving the timber to a discharge position of the guide route down, by the supporting member and the retracted state in the discharge position, supplies the container to the container separating means to drop the support containers by the support member. In this container supply device, the supporting member moving means is provided in the vicinity of the receiving position so as to be able to face the supporting member moved to the receiving position, and the supporting member is advanced in a direction crossing the guide path to be in an engaged state. There is provided a first moving means provided with a pusher and a pusher which is provided in the vicinity of the discharge position so as to be able to face the support member moved to the discharge position and retracts the support member in a direction intersecting the guide path to determine the retracted state Second moving means provided .

  The container supply apparatus may further include detection means for detecting a decrease in containers supported by the container separation means below the guide path. In this case, the support member lifting / lowering means stops the support member at the standby position set between the receiving position and the discharge position until the detection means detects the decrease in the container.

  According to the present invention, in the container supply device, the configuration of the part to be driven up and down can be simplified and reduced in weight to reduce the manufacturing cost.

It is a side view which shows the container supply apparatus which is one Embodiment of this invention.

A container supply device according to an embodiment of the present invention will be described with reference to the drawings.
This container supply device supplies paper or plastic containers C to the conveyor 11. The transport conveyor 11 has a known configuration, and transports the container C to the next step by a number of retainers 13 provided between a pair of chains 12 extending in the horizontal direction (left and right in the figure). Each retainer 13 extends in a direction perpendicular to the paper surface and has, for example, four holding holes (not shown) aligned along this direction, and one container C is fitted and held in each holding hole. The

  Above the transport conveyor 11, first, second, and third container guides (guide means) 21, 22, and 23 for guiding the container C are provided. These container guides 21, 22, and 23 are arranged in the vertical direction. The lowermost first container guide 21 has eight guide members 21 a (only four are shown in the figure) extending upward from the upper surface of the support plate 24. The upper end portion of each guide member 21a is bent outward so that the container group G supplied from above can be reliably received.

  The second container guide 22 is located above the first container guide 21, and has eight guide members 22 a extending in the vertical direction, like the first container guide 21. The lower end of the guide member 22a extends below the upper end of the guide member 21a of the first container guide 21. The upper end of each guide member 22a protrudes upward from the floor 31 of the upper floor than the floor on which the conveyor 11 is installed, and is bent outward in the same manner as the guide member 21a.

  The third container guide 23 is positioned above the second container guide 22 and has eight guide members 23 a extending in the vertical direction, like the second container guide 22. Of these guide members 23a, the four guide members 23a located on the left side of the figure are relatively short, and the four guide members 23a located on the right side of the figure are relatively long. The lower end of the guide member 23 a is positioned above the upper end of the guide member 22 a of the second container guide 22.

  A region surrounded by the guide members 21a, 22a, and 23a is a guide route A. A container group G formed by fitting a plurality of containers C to each other is guided along the guide path A while being placed on a support portion 36a of a fork member (support member) 36. That is, the container group G passes through the standby position corresponding to the intermediate portion of the second container guide 22 from the receiving position corresponding to the upper portion of the third container guide 23, and the discharge position corresponding to the upper end portion of the first container guide 21. It is transferred to.

  A guide rail 32 is provided in parallel with the first, second and third container guides 21, 22 and 23. The guide rail 32 extends from above the support base 33 provided on the floor 31 to above the support base 34 provided in the vicinity of the conveyor 11. A slider 35 is supported on the guide rail 32 so as to be movable up and down. A fork member 36 is attached to the slider 35, and the fork member 36 can be displaced in the horizontal direction with respect to the slider 35.

  A first pusher mechanism 37 is provided on the first support surface 33a of the support base 33, and a stopper mechanism 38 is provided on the second support surface 33b. A second pusher mechanism 39 is provided on the support base 34. The upper end portion of the guide rail 32 is located between the first pusher mechanism 37 and the stopper mechanism 38, and the lower end portion of the guide rail 32 extends to a position directly above the second pusher mechanism 39.

  A support portion 36 a for supporting the lower surface of the container C is provided at the tip of the fork member 36. The rear end of the fork member 36 protrudes from the slider 35, and a contact member 36b is provided at the protruding end. As will be described later, when the support portion 36a of the fork member 36 is positioned outside the guide path A, the support member 36a is advanced by the abutting member 36b being pushed by the first pusher mechanism 37, so that the guide path Move into A.

  The first pusher mechanism 37 is constituted by a cylinder device, and includes a cylinder body 37a and a pusher 37b that is a piston of the cylinder device. The cylinder body 37a is placed on the first support surface 33a, and the pusher 37b can contact the contact member 36b of the fork member 36. The pusher 37b can displace the support part 36a into the guide path A by pushing the contact member 36b when the support part 36a is retracted from the guide path A. On the other hand, the stopper mechanism 38 is also a cylinder device, and includes a cylinder body 38a and a plate-like stopper 38b attached to a piston of the cylinder device. The stopper 38b is positioned in the guide route A by moving forward and retracts from the guide route A by moving backward.

  Similarly to the first pusher mechanism 37, the second pusher mechanism 39 is configured by a cylinder device, and includes a cylinder body 39a and a pusher 39b that is a piston of the cylinder device. The difference from the first pusher mechanism 37 is that when the slider 35 is lowered to the lowest point, it engages with the front surface of the abutting member 36b to move the support portion 36a of the fork member 36 in the backward direction, that is, from the guide path A. It is to move in the retreat direction. Thus, the first pusher mechanism 37 and the second pusher mechanism 39 move the fork member 36 in a direction intersecting the guide path A, and the fork member 36 has the support portion 36a positioned in the guide path A. And a supporting member moving means that can be determined in a retracted state positioned outside the guide route A.

  A support column 41 is erected on the first support surface 33 a of the support base 33, and a lifting servo motor 43 is attached to an arm 42 extending in the horizontal direction from the support column 41. On the other hand, a pulley 45 is pivotally attached to a support 44 positioned on the upper surface of the support base 34 and immediately below the lifting servo motor 43. A chain 46 is wound around the pulley 45 and the pulley of the output shaft of the lifting / lowering servomotor 43. A connecting portion 47 fixed to the back surface of the slider 35 is connected to the chain 46. That is, when the servo motor 43 is activated, the chain 46 is rotated, and the slider 35 and the fork member 36 are moved up and down along the guide rail 32, that is, the guide path A. The lift servo motor 43, the pulley 45, and the chain 46 are supported by the support member. The lifting means is configured.

  A light emitting part and a light receiving part of the load detection sensor 53 are respectively provided on the columns 51 and 52 erected on the second support surface 33 b of the support base 33. The light emitting part is located near the upper end of the guide rail 32, and the light receiving part is located near the stopper mechanism 38. The light emitted from the light emitting unit is detected by the light receiving unit, and thereby the presence or absence of the container C is detected. That is, when the container C is placed on the support portion 36a located in the guide path A, the light is blocked by the container C, whereby the presence of the container C in the guide path A is detected. .

  A light emitting part and a light receiving part of the container decrease detection sensor 54 are respectively attached to the support base 34 and the first container guide 21. The light emitting unit is positioned in the vicinity of the second pusher mechanism 39, and the light receiving unit is disposed to face the light emitting unit with the first container guide 21 interposed therebetween. That is, the presence or absence of the container C is detected when the light emitted from the light emitting unit is detected by the light receiving unit, and the container decrease detection sensor 54 is supported by a container separation mechanism described later and the container C existing in the guide path A. Detecting means for detecting that the number has decreased from a predetermined amount.

  In the vicinity of the lower part of the first container guide 21, that is, below the guide path A, a container separation that supports a plurality of stacked containers C and separates at least one container C from the supported containers C. A mechanism (container separating means) 61 is provided. The container separation mechanism 61 has a known configuration. That is, in a state where the empty retainer 13 is positioned below the guide path A, the lower surface of the container C at the lowermost part of the container group G supported by the support plate 24 is sucked and pulled downward, and the retainer 13 Fit into the holding hole.

Next, the operation of this embodiment will be described.
The receiving position where the operator supplies the container C to the container supply device is located in the upper part of the guide path A. The supply operation by the worker is performed when the stopper 38b is on the guide path A, and a container group G in which a required number (for example, 50) of containers C are stacked is supplied to the upper surface of the stopper 38b. The first pusher mechanism 37 is driven while the stopper 38b is positioned in the guide path A, and the support portion 36a is defined below the stopper 38b.

  When the presence detection sensor 53 detects the supply of the container group G, the stopper mechanism 38 is driven and the stopper 38b is extracted from the guide path A. Thereby, the container group G is moved to the upper surface of the support part 36a. Thereafter, the fork member 36 is moved downward in a state where the lifting servo motor 43 is driven and the container group G is supported.

  When the container C of a predetermined amount or more is held by the first container guide 21, the fork member 36 stops in the middle of the second container guide 22. That is, the fork member 36 is not transferred to the discharge position, but stops at the standby position set between the receiving position and the discharge position. This stopped state is maintained until the container decrease detection sensor 54 detects that the number of containers C held in the first container guide 21 has decreased below a predetermined amount. During this time, at the receiving position, the stopper mechanism 38 is driven to set the stopper 38b in the guide path A, so that the operator can supply the next container group G.

  When the decrease in the container C is detected by the container decrease detection sensor 54, the lifting servo motor 43 is driven, the fork member 36 is lowered to the discharge position, and stops immediately above the second pusher mechanism 39. Next, the pusher 39b of the second pusher mechanism 39 engages with the front surface of the contact member 36b, and the fork member 36 is retracted to be in the retracted state, so that the support portion 36a is detached from the guide path A. As a result, the container group G supported by the support portion 36 a falls and is supplied to the support plate 24.

  Thereafter, while the fork member 36 is maintained in the retracted state, the fork member 36 is moved upward by the lifting / lowering servomotor 43, and is determined at the position where the first pusher mechanism 37 is provided, that is, the receiving position. Then, the fork member 36 moves forward, the support portion 36a is set below the stopper 38b, and the above-described operation is repeated.

  The support member moving means described above includes the first pusher mechanism 37 and the second pusher mechanism 39. The first pusher mechanism 37 is provided in the vicinity of the receiving position, and the first moving means for determining the fork member 36 in the engaged state. The second pusher mechanism 39 is provided in the vicinity of the discharge position, and constitutes a second moving means for setting the fork member 36 in the retracted state.

  As described above, according to the present embodiment, the members that reciprocate between the receiving position and the discharging position are the slider 35 and the fork member 36, and the first and second pushers for displacing the fork member 36 in the horizontal direction. The mechanisms 37 and 39 are fixed in the vicinity of the receiving position and in the vicinity of the discharge position, respectively. Therefore, the structure of the member that moves up and down between the receiving position and the discharge position is simple and lightweight, and the manufacturing cost of the container supply device can be suppressed.

  Further, at the discharge position, after the container decrease detection sensor 54 detects that the container C supported by the support plate 24 has decreased, the fork member 36 descends to the discharge position and moves backward to support the container group G. It is supplied to the plate 24. Therefore, the distance until the container group G supported by the fork member 36 falls and fits into the uppermost container C of the container group G supported by the support plate 24 can be minimized. . As a result, no clogging occurs between the dropped container group G and the lower container group G.

  The container separation mechanism 61 is not limited to the configuration of the above embodiment, and the container C at the lowermost end of the container group G supported by the support plate 24 is grasped by the separation claws and pulled downward. It may be configured.

21 First container guide (guide means)
21a Guide member 22 Second container guide (guide means)
22a Guide member 23 Third container guide (guide means)
23a Guide member 36 Fork member (support member)
36a Supporting part 37 First pusher mechanism (supporting member moving means, first moving means)
39 Second pusher mechanism (support member moving means, second moving means)
43 Servo motor for elevating (supporting member elevating means)
45 Pulley (support member lifting means)
46 Chain (support member lifting / lowering means)
61 Container separation mechanism (container separation means)
A Guide route C Container G Container group

Claims (2)

Guide means for guiding the container along a guide path surrounded by a guide member extending in the vertical direction;
A container separating unit that is provided at a lower end of the guide unit, supports a plurality of stacked containers, and separates at least one container from the plurality of supported containers;
A support member having a support portion for supporting the lower surface of the container;
The support member is placed in a direction intersecting the guide path of the guide means so that the support member has an engaged state in which the support portion is positioned in the guide path and a retracted state in which the support member is positioned outside the guide path A supporting member moving means for moving;
A support member elevating means for reciprocating the support member in a reciprocating manner along the guide path in a state where the side of the support portion that contacts the lower surface of the container faces upward ;
After the required number of containers are supported by the support member engaged at the receiving position above the guide path, and the support member is moved to the discharge position below the guide path, the support member is moved at the discharge position. In the container supply device that drops the container supported by the support member and supplies the container to the container separating means by setting the retracted state,
The supporting member moving means is provided in the vicinity of the receiving position so as to be able to face the supporting member moved to the receiving position, and advances the supporting member in a direction crossing the guide path to determine an engaged state. The first moving means provided with a pusher and the support member moved to the discharge position in the vicinity of the discharge position are provided so as to be opposed to each other, and retracted by retracting the support member in a direction intersecting the guide path. And a second moving means provided with a pusher for determining the state. A detecting means for detecting a decrease in the container supported by the container separating means is further provided below the guide path,
The support member lifting / lowering means stops the support member at a standby position set between the receiving position and the discharge position until a decrease in the container is detected by the detecting means. The container supply device described in 1.

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