JPH0595727U - Carton feeder - Google Patents

Abstract

(57) [Summary] Carton supply device [Purpose] The weight of the slider is reduced by eliminating the need to attach a drive source for raising and lowering the carton pushing claw to the slider. [Construction] A guide 21 is arranged on the extension line of the mandrel 11 so as to hold the carton C so that the carton C is free to move in and out. A slider 42 is arranged so as to reciprocate inward and outward along the guide 21. On the slider 42,
A carton pushing claw 47 is attached so that it engages with the carton C held by the guide 21 when it rises and disengages when it falls. The carton pushing claw 47 is biased in the direction caused by the spring 71. The urging force of the spring 71 is set so that the carton pushing claw 47 comes into contact with the inner end of the carton C held by the guide 21 and moves downward against the urging force of the spring 71 as the slider 42 moves outward. ..

Description

[Detailed description of the device]

[0001]

[Industrial application]

 The present invention relates to a carton feeding device for putting a carton filled with milk or the like on a bottom forming mandrel of the carton.

[0002]

[Prior Art]

 This type of carton feeder includes a guide that holds the carton on the extension line of the mandrel so that the carton can move inward and outward, a slider that reciprocates inward and outward along the guide, and a slider. A carton pushing pawl that engages when raised against a carton that is mounted up and down freely and is held by a guide, and that disengages when folded, and a carton pushing pawl when the slider moves inward. The carton pushing pawl has a hoisting means for hoisting the carton pushing claw so that the carton pushing claw is hoisted when the slider moves outward due to the movement claw occurring, and the hoisting means raises and lowers the fluid pressure cylinder attached to the slider. It includes a drive device including the drive device and a control device that operates the drive device in synchronization with the inner and outer movements of the slider.

[0003]

[Problems to be solved by the device]

 In the above conventional carton feeder, since the fluid pressure cylinder is attached to the slider, the weight of the reciprocating portion including the slider becomes heavy, and the load for driving the slider is large. Further, the structure of the drive device and the control device for undulating the carton pushing claw is complicated.

An object of the present invention is to solve the above problems and to provide a carton supply device capable of reducing the weight of a slider and simplifying the structures of a drive device and a control device for undulating a carton pushing claw. To do.

[0005]

[Means for Solving the Problems]

 The carton feeder according to the present invention includes a guide that holds the carton so that the carton is free to move in the inward and outward directions on the outward extension line of the mandrel, a slider that reciprocates in the inward and outward directions along the guide, and undulations on the slider. In a carton feeding device provided with a carton pushing pawl that is freely attached and held on a guide, engages when rising, and disengages when lying down, carton pushing pawl Is urged in the direction caused by the spring, and as the slider moves outward, the carton pushing claw comes into contact with the inner end of the carton held by the guide so that the carton can be bent against the urging force of the spring. It is characterized in that the urging force of is set.

[0006]

[Action]

 In the carton feeding device according to the present invention, the carton pushing claw is urged in the direction caused by the spring, and the carton pushing claw is brought into contact with the inner end of the carton held by the guide as the slider moves outward. Since the biasing force of the spring is set so as to be able to lie against the urging force of the carton, the carton pushing claw is undulated by contacting the carton.

[0007]

【Example】

 An embodiment of the present invention will be described below with reference to the drawings.

In FIG. 1, an intermittently driven rotating body 12 having a radial mandrel 11 for carton bottom forming is shown. One of the mandrels 11 is stopped at the supply station S in a state where the mandrel 11 is directed obliquely downwards, and a carton supply device is disposed there. The supply station S is composed of an outer receiving portion S1 and an inner waiting portion S2 which are lined up on the outer extension line of the mandrel 11 stopped here.

The carton feeding device includes a guide 21 that holds the carton C on the same outward extension line so that the carton C is free to move in the inward and outward directions, and a flat carton C that is arranged diagonally above the guide 21. Conveying device 23 for taking out the cartons C one by one from the magazines 22 and the magazines 22 which are stored in a stack, open the taken out cartons C from a flat shape to a rectangular tube shape, and convey them to the receiving section S1 and hold them on the guide 21. Then, the carton C held by the guide 21 is conveyed from the receiving section S1 to the mandrel 11 via the waiting section S2, and the loader 24 is put on the mandrel 11.

With reference to FIGS. 3 to 5, the guide 21, the magazine 22 and the carrying device 23, except for the loader 24, are provided with two units each having the same structure, although the left and right directions are different. ..

Further, since the components other than the guide 21 and the loader 24 are not directly related to the present invention, only the guide 21 and the loader 24 will be described below.

The guide 21 includes a pair of upper and lower outer guide rails 31 and 32 arranged in the outer receiving portion S1 and a pair of upper and lower inner guide rails 33 and 34 arranged in the inner standby portion S2. As shown in FIG. 4, the outer guide rails 31, 32 are formed with guide recesses 35 facing each other at the corners of the carton C 1 opened in a cylindrical shape. On the other hand, as shown in FIG. 5, on the guide surfaces of the inner guide rails 33, 34, instead of the recesses 35, a plurality of guide rollers 36 are mounted side by side. A stopper piece 37 is attached to the outer end of the lower guide rail 34 of the upper and lower inner guide rails 33 and 34. The topper piece 37 has a protrusion 38 that has entered the carton movement path.

The loader 24 includes a guide rod 41 extending inward and outward between the left and right guides 21, a cylindrical slider 42 slidably fitted on the guide rod 41, and outer end portions of the left and right side surfaces of the slider 42. Left and right outer carton pushing for pushing the carton C fixed to the left and right directions via the L-shaped outer bracket 43 in plan view and being held by the receiving portion S1 on the guide 21 from the receiving portion S1 to the standby portion S2. The carton C, which is attached to the claws 44 and the inner ends of the left and right side surfaces of the slider 42 so as to be able to rise and fall in opposite directions via an L-shaped inner bracket 45 in plan view, and which is held by the guide 21 at the standby portion S2, is placed in the standby portion S2 It consists of two left and right inner carton pushing claws 47 that push from the to the mandrel 11.

The tip end of a swing arm 51 is connected to the slider 42 via a connecting rod 52. The base of the swing arm 51 is fixed to a horizontal shaft 53 that is rotated by a drive mechanism (not shown).

The left and right outer carton pushing claws 44 are strip-shaped and have their tips inserted into the carton movement path guided by the guide 21.

As shown in detail in FIGS. 6 and 7, a horizontal facing wall 61 is provided at the tip of the inner bracket 45, and a spring mounting plate 62 is provided at the tip thereof, and a support pin 63 is provided near the tip thereof. Have been handed off.

The inner carton pushing claw 47 has a base end fixed to a rectangular parallelepiped mounting block 64 that is sandwiched between opposed walls 61 and rotatably mounted on a support pin 63, and has a strip plate shape extending inward from the mounting block 64. It is a thing. A contact roller 65 is attached near the tip of the inner carton pushing pawl 47 (in FIG. 6, the left inner carton pushing pawl 47 projects upward and the left inner carton pushing pawl 47 projects upward. Like). A V-shaped engagement recess 66 is formed on the tip surface of the inner carton pushing claw 47.

A base portion of an outwardly extending stopper arm 67 is fixed to the mounting block 64 so as to face the spring mounting plate 62. A concave spring bearing 68 and a convex spring bearing 69 are attached to the opposing surfaces of the spring mounting plate 64 and the stopper arm 67, respectively. A compression coil spring 71 is interposed between the spring supports 68 and 69, and is biased in the direction in which the inner carton pushing claw 47 is raised.

A stopper bolt 72 is screwed near the tip of the stopper arm 67 so that the tip of the stopper bolt 72 abuts on the base of the inner bracket 45, whereby the inner carton pushing pawl 47 is moved approximately 30 times in the slider moving direction. It is held in an upright position that forms an angle of degrees. A position adjusting nut 73 is screwed onto the stopper bolt 72.

Now, it is assumed that the slider 42 is located at the outer end of its moving stroke, and the cartons C are held by the guide 21 in the receiving portion S1 and the waiting portion S2, respectively. When the slider 42 is moved inward from this state, the outer carton pushing pawl 44 is provided on the outer end of the carton C of the receiving portion S1 and the inner carton pushing pawl is provided on the outer end of the carton C of the standby portion S2. 47 come into contact with each other and push, and both cartons C are moved inward. When the slider 42 reaches the inner end of its moving stroke, the carton C in the receiving section S1 is moved to the waiting section S2, and the carton C in the waiting section S2 is fitted on the mandrel 11.

Next, when the slider 42 moves rearward, the outer carton pushing claw 44 moves outward as it is, but the inner carton pushing claw 47 is brought into contact with the inner end of the carton C of the standby portion S2, The spring 71 is swung by being compressed to be in a prone posture, and in that state, it is moved along the carton C, and when the carton C is overcome, the original posture is restored. When the inner carton pushing claw 47 comes into contact with the carton C, even if the carton C is pushed outward and tries to move, the shuttleper piece 37 blocks this.

When the slider 42 returns to the outer end, a new carton C is conveyed from the magazine 22 and is held in the receiving portion S1 and returns to the state described at the beginning, and the one cycle supply operation is completed. ..

[0023]

[Effect of the device]

 According to this invention, since the carton pushing claw is raised and lowered by coming into contact with the carton, it is not necessary to attach a drive source for raising and lowering the carton pushing claw to the slider, and hence the weight of the slider is reduced. In addition, a drive device and a control device for undulating the carton pushing claw are unnecessary.

[Brief description of drawings]

FIG. 1 is a side view of a carton feeding device of the present invention and its peripheral portion.

FIG. 2 is a side view of the carton feeding device of the present invention.

FIG. 3 is a plan view of the supply device.

4 is a cross-sectional view taken along line IV-IV in FIG.

5 is a cross-sectional view taken along line VV of FIG.

FIG. 6 is a perspective view around the inner end portion of the slider, showing a mounting state of the carton pushing claw.

FIG. 7 is a vertical sectional view of the same portion.

[Explanation of symbols]

 11 Mandrel 21 Guide 42 Slider 47 Carton pushing claw 71 Spring S Supply station C Carton

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor, Kazuo Abe, Taro Kitajima-cho, Itano-gun, Tokushima Prefecture 1 at 10 Nishinokawa, Nishinokawa, Shikoku Kakoki Co., Ltd. (72) Inventor, Shoji Hirose Itano-gun, Tokushima Prefecture Kitarojima Town Taro Yasusu 1 Nishinokawa No. 1 1 Shikoku Kakoki Co., Ltd. (72) Inventor Shoji Nishioka Taro Kitajima, Tokushima Prefecture No. 1 Nishinokawa No. 1 Nishi Shikoku Koki Co., Ltd. (72) Inventor Koji Fujikawa 1 Taro Yasuji, Kitajima-cho, Itano-gun, Tokushima Prefecture 1 Nishinokawa No. 1 Shikoku Kakoki Co., Ltd.

Claims (1)

[Scope of utility model registration request] 1. A carton feeding device for feeding a bottom forming mandrel 11 stopped at a feeding station S by fitting a rectangular cylindrical carton C onto the mandrel 11 and feeding the carton C on an outward extension line of the mandrel 11. Guides to hold the movement of the guide 21 freely
And a slider 42 that reciprocates inward and outward along the guide 21, and a carton C that is attached to the slider 42 so as to be able to move up and down and is held by the guide 21 when engaged and raised. In the carton feeding device including the carton pushing claw 47 that is engaged and disengaged, the carton pushing claw 47 is biased in the direction caused by the spring 71, and the carton pushing claw 47 is moved in accordance with the outward movement of the slider 42. The carton supply device is characterized in that the urging force of the spring 71 is set so that it can come into contact with the inner end of the carton C held by the guide 21 and fall against the urging force of the spring 71.