JP3145028U - Impulse electric heat sealing machine - Google Patents

Abstract

An impulse electrothermal sealing machine that can be manufactured at a low cost with a simple structure is provided.
An impulse electrothermal sealing machine body 7 disposed above a filling bag 2 transferred in a transfer direction is moved to a transfer speed of the filling bag via a drive unit, an electromagnetic clutch, a chain, a pinion and a CP rack. A pair of impulse heaters 8 that move in the transfer direction in synchronism with each other, and a pair of impulse heaters 8 press and seal both upper ends of the filling bag 2, and release the pressure heating of the impulse heaters 8 after the sealing is completed. 1 air cylinder and a second air cylinder for returning the impulse heater 8 to its starting position. A pair of guides that guide both sides of the predetermined upper portion of the filling bag 2 along the transfer direction while maintaining the narrowed state of the predetermined upper portion of the filling bag 2 below the pair of impulse heater portions 8 of the main body 7 of the impulse electric heat sealer. Guides 10 and 10 are provided.
[Selection] Figure 2

Description

  The present invention relates to an impulse electric heat sealing machine, in particular, various industrial, food, feed, etc. powder or granule articles or equivalent articles using synthetic resin (polyester) using electric impulse heat. The present invention relates to an impulse electric heat sealing machine that efficiently seals in a bag.

  Conventionally, many impulse electric heat sealing machines for such articles have been proposed and used regardless of whether they are for store use or industrial use.

  For example, a predetermined upper portion of a conveyor transfer filling bag is sandwiched between a pair of bag feeding chains and transferred synchronously with the conveyor, and after a predetermined time, via a bag feeding chain drive unit, an electromagnetic clutch, a chain, a pinion, and a CP rack, A pair of impulse heaters that move in synchronization with the transfer speed of the bag feeding chain is pressed and sealed on both sides of the top of the filling bag. After the sealing is completed, the pressure heater is released and the impulse heater is started by an air cylinder. An impulse electric heat sealing machine which is made to return to the original position is known as disclosed in Patent Document 1.

Japanese Patent No. 3770764

  The impulse electric heat sealing machine has a configuration in which a predetermined upper portion of a filling bag for conveyor transfer is sandwiched between a pair of bag supply chains and transferred synchronously with the conveyor. For this reason, a pair of bag feeding chains and a power transmission sprocket must be disposed on both sides of the filling bag, which not only makes the structure complicated but also increases the manufacturing cost.

  Therefore, the present invention has been made in view of this, and the object thereof is to eliminate the need for a pair of bag-feeding chains and a power transmission sprocket that sandwich and transfer a filling bag, and has a simple structure and is inexpensive. An impulse electric heat sealing machine that can be manufactured is provided.

  The impulse electric heat sealing machine according to claim 1 is configured such that the impulse electric heat sealing machine body disposed above the filling bag transferred in the transfer direction is filled with the filling unit via a drive unit, an electromagnetic clutch, a chain, a pinion, and a CP rack. A pair of impulse heaters that move in the transfer direction in synchronization with the transfer speed of the bag, and the pair of impulse heaters press and seal both sides of the upper end of the filling bag. In order to solve the above-mentioned problem, the main body of the impulse electrothermal sealing machine is provided with a first air cylinder for releasing the first air cylinder and a second air cylinder for returning the impulse heater to its starting position. Under the pair of impulse heaters, both sides of the predetermined upper portion of the filling bag are kept in the transfer direction while maintaining a narrowed state of the predetermined upper portion of the filling bag. Wherein a pair of guides that along a guide is provided.

  The impulse electric heat sealing machine according to claim 2 is characterized in that, in the impulse electric heat sealing machine according to claim 1, the pressure heating of the impulse heater part at the upper end of the filling bag is performed through a Teflon (registered trademark) sheet. To do.

  The impulse electric heat sealing machine according to claim 3 is the impulse electric heat sealing machine according to claim 2, wherein the Teflon (registered trademark) sheet to be used intervenes when the filling bag of the impulse heater part is heated, depending on the contamination state. It is a take-off type and is intermittently transferred.

  According to the impulse electrothermal sealing machine of the first aspect, the filling bag being transferred in the transfer direction is provided at a predetermined upper portion of the filling bag by a pair of guides provided below the pair of impulse heaters of the impulse seal portion. While maintaining the constricted state, both sides of a predetermined upper portion of the filling bag are guided along the transfer direction of the conveyor. During this time, the impulse seal part presses and seals both sides of the top of the filling bag with a pair of impulse heaters that move in synchronism with the transfer speed of the conveyor via the drive part, electromagnetic clutch, chain, pinion and CP rack. Thereafter, the pressure heating of the impulse heater is released, and the impulse heater is returned to its starting position by the air cylinder. Therefore, since a pair of bag-feeding chains and a power transmission sprocket that sandwich and transfer the filling bag are not used, it can be manufactured at a low cost with a simple structure.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. FIG. 1 is a front view showing an impulse electric heat sealing machine according to an embodiment of the present invention, and FIG. 2 is a side view of the impulse electric heat sealing machine of FIG. FIG. 3 is a schematic plan view for explaining the sealing operation of the filling bag in the impulse electric heat sealing machine.

  In FIG. 1 and FIG. 2, reference numeral 1 indicates a powder bag or granule article for various industrial use, food use, feed use or the like, or a filling bag 2 in which an equivalent article is filled. In the state, it is a conveyor as a transfer means for transferring the filling bag 2 at a predetermined transfer speed in the transfer direction.

  The impulse electric heat sealer 3 includes a base 4 that can move on the floor, a support 5 that is erected along the vertical direction on the base 4, and a support that can be moved up and down with respect to the support 5. An arm 6 and an impulse electric heat sealer body 7 attached to the support arm 6 are provided. Therefore, the impulse electric heat sealer main body 7 is provided so as to be movable up and down with respect to the column 5 via the support arm 6 and is disposed above the conveyor 1.

  As shown in FIG. 1, the impulse electric heat sealing machine body 7 has a pair of impulse heaters 8 that move in the transfer direction F1 while synchronizing with the transfer speed of the filling bag 2 on the upstream side in the transfer direction F1 of the filling bag 2. A cooling unit 9 is provided on the downstream side in the transfer direction F1 of the filling bag 2 to cool the filling bag 2 after electric heat sealing by blowing it with cooling air.

  The present invention is characterized in that both sides of the predetermined upper portion of the filling bag 2 are held under the pair of impulse heater portions 8 and 8 of the impulse electric heat sealing machine main body 7 while the predetermined upper portion of the filling bag 2 is kept in a narrowed state. A pair of guides 10 and 10 for guiding along the transfer direction F1 are provided.

  As shown in FIG. 2, the guides 10 and 10 are formed in a thin plate shape that is relatively long along the transfer direction F1 of the filling bag 2 and has a thin thickness in the front-rear direction perpendicular to the transfer direction of the filling bag 2. It arrange | positions so that it may mutually oppose with the predetermined space | interval slightly wider than the thickness of the upper part of the filling bag 2. FIG. The guides 10 and 10 are formed such that one end portion where the filling bag 2 arrives is gradually widened toward the tip. For this reason, the both sides of the predetermined upper part of the filling bag 2 transferred in the transfer direction F1 can be reliably guided between the guides 10 and 10.

  FIG. 4 is a side view showing a positional relationship between the guides 10 and 10 and the impulse heaters 8 and 8 when the bag opening of the filling bag 2 is sealed in the impulse electric heat sealing machine. As shown in FIG. 4, it forms so that a mutual space | interval may become large gradually toward the lower end from the intermediate part in the up-down direction orthogonal to the transfer direction of the filling bag 2. As shown in FIG. For this reason, the upper portion of the guides 10 and 10 keeps the squeezed state of the predetermined upper portion of the filling bag 2, while the lower portions of the guides 10 and 10 swell the upper portion of the bag due to the filling inside the filling bag 2. To become familiar with.

  The impulse electric heat sealing machine main body 7 of the present embodiment guides the upper part of the filling bag 2 transferred by the conveyer 1 below by guides 10, 10 arranged opposite to each other, and the impulse heater unit 8 that moves in synchronization with the conveyer 1. The bag heater 2a is configured to be electrically heat sealed by the impulse heater 11.

  As described above, the impulse heater portions 8 and 8 are guided by the guides 10 and 10 and moved by a predetermined distance in synchronism with the filling bag 2 transferred in the transfer direction F1. Is closed in a direction approaching each other, and has an air cylinder 12 (first air cylinder) that opens the pair of impulse heater portions 8 and 8 in a direction away from each other (see FIG. 1).

  The impulse heaters 11 and 11 of the impulse heaters 8 and 8 are pressed in the direction P1 approaching each other (see FIGS. 2 and 4), the bag mouth portion 2a is heated and welded, and the air is further moved for a predetermined distance. The compressed air of the cylinder 12 is released, the pressurization contact of the impulse heaters 11 and 11 is released as shown in the direction P2 away from each other, and cooling air is blown by the cooling unit 9 to cool and carry out the welded part. It is comprised so that it may take out from the terminal of 1 as a bagging product.

  In the sealing operation of the present invention, a Teflon (registered trademark) sheet 13 is interposed as shown in FIG. 4 in order to prevent direct contact between the impulse heaters 11 and 11 and the bag mouth portion 2a (to prevent melting of the bag). The Teflon (registered trademark) sheet 13 is intermittently sent according to the contamination state, and the bag mouth of the bag mouth due to contamination of this surface is provided. Configure and operate to prevent poor adhesion. Further, as described above, the impulse heaters 8 and 8 are electrically and heat sealed as the filling bag 2 is moved in synchronization with the transfer direction F1 of the bag mouth portion 2a of the filling bag 2 transferred by the conveyor 1.

  As shown in FIG. 1, the moving mechanism for moving the pair of impulse heaters 8 and 8 in the transfer direction is roughly a driving unit 20 (driving motor) disposed at the upper end of the other end of the impulse electrothermal sealing body 7. In the connected state, the rotational force of the drive unit 20 input to the input unit is transmitted to the output unit, while in the detached state, to the output unit of the rotational force of the drive unit 20 input to the input unit. The electromagnetic clutch 21 that cuts off the rotational force transmission, the pinion 23 that is rotatably provided at the center of the impulse heat seal machine body 7, and the rotational force transmitted around the output portion and the pinion 23 of the electromagnetic clutch 21 And a PC rack 25 that is meshed with the pinion 23 and attached to the frame 16 that supports the pair of impulse heaters 8 and 8 and the air cylinder 12.

  In addition, an air cylinder (second air cylinder) 17 for returning the impulse heaters 8 and 8 moved together with the filling bag 2 to its starting position via the frame 16 is provided at the upper end of the other end of the impulse heat sealing machine body 7. Is arranged (see FIG. 1).

  In the overall operation, the impulse electric heat sealing machine 3 is first driven in accordance with the size of the filling bag 2 to be sealed, and the drive unit that synchronizes with the height of the support arm 6, the operation speed of the conveyor 1, and the transfer speed of the filling bag 2. After adjusting and determining the rotational speed of 20 and the heating temperature of the impulse heaters 11 and 11, etc., the engine is started.

  Then, the filling bag 2 carried by the conveyor 1 is guided between the guides 10 and 10, and the two sides of the predetermined upper portion of the filling bag 2 are transported in the transfer direction while maintaining the narrowed state of the predetermined upper portion of the filling bag 2. Guided along F1, the bag mouth 2a is carried between the pair of impulse heaters 8 and 8, as shown in FIG.

  At this time, the bag detecting phototube switch 18 is turned on, the impulse heaters 8 and 8 are started by the signal generated by the bag detecting phototube switch 18, the drive unit 20 is operated, and the electromagnetic clutch 21 is connected. , The chain 24, the pinion 23 and the CP rack 25 are moved in the transfer direction F1 while being synchronized with the speed of the filling bag 2, and at the same time, the air cylinder 12 for opening and closing the heater is operated, and the impulse heaters 8, 8 Are pressed and pressed in a direction approaching each other and brought into contact as shown by reference numerals 8a and 8a in FIG. 2 to weld the bag mouth portion 2a (see FIG. 2).

  Thereafter, the impulse heaters 8 and 8 move by time t and reach positions indicated by reference numerals 8b and 8b in FIG. Next, the impulse heaters 8 and 8 release the pressure of the air cylinder 12 and are opened to positions indicated by chain lines 8c and 8c. Further, the drive unit 20 is stopped and the electromagnetic clutch 21 is disengaged. Next, the air cylinder 17 is operated, and the impulse heaters 8 and 8 are returned to the starting original position via the frame 16.

  During this time, the sealed filling bag 2 that has exited from the opened impulse heaters 8, 8 enters the cooling unit 9, the bag opening 2 a is cooled by cooling air, and is taken out from the end of the conveyor 1 as a product.

  As described above, the impulse electric heat sealing machine 3 can repeatedly and continuously seal the filling bag 2 carried by the conveyor 1. Therefore, the present invention does not use a pair of bag-feeding chains and a power transmission sprocket that sandwich and transfer the filling bag 2 and can be manufactured at a low cost with a simple structure.

It is a front view which shows the impulse electric heat sealing machine which concerns on embodiment of this invention. It is a side view of the impulse electric heat sealing machine of FIG. It is a schematic plan view for demonstrating sealing operation of the filling bag in an impulse electric heat sealing machine. It is a side view which shows the positional relationship of the guide and impulse heater part at the time of sealing the bag mouth of the filling bag in an impulse electric heat sealing machine.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Conveyor 2 Filling bag 2a Bag mouth part 3 Impulse electric heat sealing machine 4 Base 5 Support | pillar 6 Support arm 7 Impulse electric heat sealing machine main body 8 Impulse heater part 9 Cooling part 10 Guide 11 Impulse heater 12 Air cylinder (1st air cylinder)
13 Teflon (registered trademark) sheet 14 Feeding roll 15 Winding roll 16 Frame 17 Air cylinder (second air cylinder)
18 Photodetector switch for bag detection 20 Drive unit 21 Electromagnetic clutch 23 Pinion 24 Chain 25 CP rack

Claims (3)

Impulse electric heat sealing machine body arranged above the filling bag to be transferred in the transfer direction, through the drive unit, electromagnetic clutch, chain, pinion and CP rack, the transfer direction in synchronization with the transfer speed of the filling bag A pair of impulse heaters that move to each other, a first air cylinder that presses and seals both upper ends of the filling bag with the pair of impulse heaters, and releases the pressure heating of the impulse heaters after the sealing, and In the impulse electrothermal sealing machine including the second air cylinder for returning the impulse heater part to its starting position,
A pair for guiding both sides of the predetermined upper portion of the filling bag along the transfer direction while maintaining a narrowed state of the predetermined upper portion of the filling bag below the pair of impulse heater portions of the main body of the impulse electric heat sealing machine. The guide was provided,
Impulse electric heat sealing machine characterized by that.   2. The impulse electric heat sealing machine according to claim 1, wherein pressure heating of the impulse heater at the upper end of the filling bag is performed via a Teflon (registered trademark) sheet.   3. The impulse electric heating according to claim 2, wherein the Teflon (registered trademark) sheet to be used interveningly is transferred in a winding manner and intermittently according to a contamination state when the filling bag of the impulse heater is heated. Sealing machine.

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