CN209616499U - Inner bag and outer bag bonding mechanism of double-layer bag - Google Patents

Abstract

The utility model discloses a mechanism is binded with outer bag to inner bag of double-deck bag, wherein the mechanism is equipped with a base, and the base is equipped with first sucking disc, junction device, second sucking disc and has the positioner of third sucking disc, and its joining method is as follows: the inner bag is positioned in the outer bag and protrudes out of the opening of the outer bag to form a protruding part; the upper and lower suckers of the first sucker respectively suck the side surface of the outer bag and move in opposite directions, and the upper and lower suckers of the second sucker respectively suck the side surface of the protruding part and move in opposite directions; the third sucker enters the inner bag to suck the inner bag, the second sucker cancels the adsorption, and the third sucker moves inwards until the opening of the inner bag is aligned with the opening of the outer bag; the joint device joints the outer bag and the inner bag with each other; therefore, the inner bag and the outer bag can be automatically jointed, the joint surface is accurate, and the situation of pollution caused by touch can be reduced.

Description

Inner bag and outer bag bonding mechanism of double-layer bag

technical field

The utility model relates to a packaging bag processing device, in particular to a processing mechanism for bonding the inner bag and the outer bag of a double-layer belt in an automatic manner.

Background technique

In the prior art, packaging bags loaded with food grades generally have the structure of an inner and outer double-layer bag, that is, an outer bag body and an inner bag body, the outer bag body is sleeved on the outer edge surface of the inner bag body, and the outer bag body is a woven bag or Paper-plastic bag, while the inner bag body is made of PE film, and the outer bag body is made of woven bag or paper-plastic bag because of its strong structure, which can bear the weight of the goods and the deformation of the bag body after the bag is filled with goods. The inner film is made of PE material to maintain the freshness of food-grade goods, or to block the moisture from the outside to prevent the goods in the bag from getting damp.

In the manufacture of double-layer bags, one end of the inner bag is heated and sealed, and then inserted into the inside of the outer bag, and depending on the type of double-layer bag, it is decided to sew the inner bag and the outer bag together , to fix the bottom of the inner bag and the outer bag, or just sew the outer bag so that the inner bag is not fixed in the outer bag; the opening ends of the inner bag and the outer bag are processed by heating or adhesive The method is to combine the inner side of the opening of the outer bag with the outer side of the opening of the inner bag.

However, in the prior art, the opening end of the inner bag body and the outer bag body is combined, and the part of the inner bag body that protrudes from the opening of the outer bag body is pushed toward the inner direction of the outer bag body until the inner bag body is closed by manual operation. The opening edge is aligned with the opening edge of the outer bag body, and then the openings are combined with each other by using the bonding machine; but because the operator directly touches the inner bag body during the operation, it may cause contamination of the inner bag body and violate relevant health regulations In addition, the combination of the opening of the inner bag body and the opening of the outer bag body is also achieved through manual adjustment, which increases the time required for the overall operation process and is not conducive to the mass production of double-layer packaging bags. In addition, the error in the combination and alignment of the opening of the inner bag body and the outer bag body caused by manpower is also more obvious. Therefore, the manufacture of prior art double-layer bag, its integral structure and manufacturing method have problems and shortcoming as aforesaid, really need to be improved.

Utility model content

In view of the shortcomings and deficiencies of the prior art, the utility model provides a double-layer bag inner bag and outer bag bonding mechanism, which can be arranged on the base by the first suction cup, the second suction cup, the joint device and positioning The device achieves the purpose of automatically joining the inner bag and the outer bag of the double-layer bag.

In order to achieve the above-mentioned purpose of the utility model, the technical means adopted in the utility model is to provide a bonding mechanism for the inner bag and the outer bag of a double-layer bag, which includes:

A base, which has an upper seat and a lower seat;

A first suction cup is arranged on the base, and the first suction cup includes:

a first upper suction cup, which can be moved up and down on the upper seat;

a first lower suction cup, which is fixed on the lower seat, and the first upper suction cup can be selectively attached to the first lower suction cup;

A second suction cup is arranged on the base, and the second suction cup includes:

A second upper suction cup, which can be moved up and down on the upper seat;

A second lower suction cup, which is fixed on the lower seat, and the second upper suction cup can be selectively attached to the second lower suction cup;

An engaging device, which is disposed on the base between the first suction cup and the second suction cup, and the engaging device includes:

an upper joint, which is arranged on the upper seat so as to be able to move up and down;

a lower joint, which can be moved up and down on the lower seat, and the upper joint can be selectively attached to the lower joint;

A positioning device, which is arranged on the base, and the positioning device includes:

a displacement seat, which is movably arranged on the base;

A third suction cup is connected to the displacement seat, and the first suction cup, the second suction cup and the third suction cup are respectively externally connected with a negative pressure device.

Furthermore, in the bonding mechanism of the inner bag and the outer bag of the double-layer bag, the displacement seat includes a lifting table, which has a frame body and a first air cylinder, and the frame body can be moved through the first air cylinder. A pressure cylinder is arranged on the lower base to move up and down; a linear motor is arranged on the frame body; a ball screw is connected to the linear motor at one end, and the other end of the ball screw is connected to the third sucker.

Furthermore, in the bonding mechanism between the inner bag and the outer bag of the double-layer bag, the third suction cup further includes a suction head, the suction head is formed with a plurality of suction holes, the suction head has two inclined surfaces connected up and down and Two upper and lower planes respectively connected with the two slopes, the plurality of suction holes penetrate the two planes of the suction head.

Furthermore, in the bonding mechanism of the inner bag and the outer bag of the double-layer bag, the third suction cup further includes a pressing plate, and the pressing plate is horizontally arranged on the third suction cup and adjacent to the suction head.

Furthermore, in the bonding mechanism between the inner bag and the outer bag of the double-layer bag, the third suction cup is further connected with a suction pipe, one end of the suction pipe is connected with the suction head, and the other end of the suction pipe is connected with a negative pressure device.

Furthermore, the bonding mechanism of the inner bag and the outer bag of the double-layer bag further includes at least one second pneumatic cylinder, each of which is set on the base and the first upper suction cup and The second upper suction cup can move up and down by connecting the second air cylinders.

Furthermore, in the bonding mechanism between the inner bag and the outer bag of the double-layer bag, the bonding device is an ultrasonic sealing machine.

Furthermore, in the bonding mechanism between the inner bag and the outer bag of the double-layer bag, the bonding device is a hot-melt machine.

The utility model has the advantage that the inner bag and the outer bag of the double-layer bag can be joined in an automatic process by setting the first suction cup, the second suction cup, the joint device and the positioning device on the base; In addition to achieving a more precise joint surface, it can also reduce the occurrence of contamination caused by contact; and the use of ultrasonic sealing machines to seal double-layer bags can achieve a joint strength close to the strength of raw materials.

The utility model will be described in detail below in conjunction with the accompanying drawings and specific embodiments, but not as a limitation of the utility model.

Description of drawings

Fig. 1 is a side view of the utility model.

Fig. 2 is the front view of the utility model.

Fig. 3 is the top view of the utility model.

Fig. 4 is the operation flowchart of the utility model.

5 to 8 are schematic diagrams of the bonding steps of the present invention.

Fig. 9 is a schematic diagram of the double-layer bag of the present invention before joining.

Fig. 10 is a schematic diagram of the jointed double-layer bag of the present invention.

Detailed ways

The technical means adopted by the utility model to achieve the intended purpose of the utility model are further described below in conjunction with the drawings and preferred embodiments of the utility model.

Please refer to Fig. 1, the inner bag and the outer bag bonding mechanism of the double-layer bag of the present invention include a base 10, a first suction cup 20, a second suction cup 30, an engaging device 40 and a positioning device 50.

Please refer to Fig. 3 and shown in Fig. 9, the double-layer bag 70 that the utility model refers has an inner bag 71 and an outer bag 72, and one end of the inner bag 71 and the outer bag 72 has an opening respectively, and the other end is Closed, the inner bag 71 is located inside the outer bag 72, and one end of the opening of the inner bag 71 protrudes from the opening of the outer bag 72 to form a protrusion 711. In this embodiment, the outer bag 72 is a woven bag, and the inner bag 71 is Bag body of PE (Polyethylene) film.

Please refer to Fig. 1, the base 10 has an upper seat 11 and a lower seat 12; in the present embodiment, the base 10 is a similar E-shaped structure, the structure extending laterally in the middle is the lower seat 12, and the remaining structures are the upper seat 11 , but not limited thereto, the shape of the base 10 can be changed according to the needs of users.

1 to 3, the first suction cup 20 is arranged on the base 10, and the first suction cup 20 includes a first upper suction cup 21 and a first lower suction cup 22, the first upper suction cup 21 can be opposite to the upper seat 11 moves up and down, the first lower suction cup 22 is fixed on the lower seat 12, the first upper suction cup 21 can be selectively attached to the first lower suction cup 22; in this embodiment, the first suction cup 20 is used to absorb double-layer bags 70 of the outer bag 72, the first upper suction cup 21 and the first lower suction cup 22 are coaxially arranged and located at the front end of the base 10, and the first upper suction cup 21 can be driven by the second air cylinder 60 arranged on the base 10. Move down until it abuts against the first lower suction cup 22 , or move up to keep a certain distance from the first lower suction cup 22 .

The second suction cup 30 is arranged on the base 10, and the second suction cup 30 includes a second upper suction cup 31 and a second lower suction cup 32, the second upper suction cup 31 can move up and down relative to the upper seat 11, and the second lower suction cup 32 is fixed. Located on the lower seat 12, the second upper suction cup 31 can be selectively attached to the second lower suction cup 32; The upper suction cup 31 is arranged coaxially with the second lower suction cup 32 and is located near the center of the base 10. The second upper suction cup 31 can be moved downwards by the drive of the third air cylinder 61 provided on the base 10 until it abuts against the The second lower suction cup 32 , or moves upward to keep a certain distance from the second lower suction cup 32 .

The joint device 40 is arranged on the base 10 between the first suction cup 20 and the second suction cup 30, and the joint device 40 includes an upper joint 41 and a lower joint 42, the upper joint 41 is movable up and down on the upper seat 11, and the lower joint 42 is movable up and down on the lower seat 12 and the top of the lower joint 42 is flush with the first lower suction cup 22 and the second lower suction cup 32, and the upper joint 41 can be selectively attached to the lower joint 42; in this embodiment , the bonding device 40 is an ultrasonic sealing machine, and the ultrasonic sealing machine (closingultrasonic machine) is a kind of ultrasonic plastic welding machine, which utilizes an ultrasonic energy concentrator to act on the sealing part of the packaging container to seal the packaging container, which is a device in the prior art. The detailed structure will not be repeated, and the upper joint 41 and the lower joint 42 are the upper welding joint and the lower welding joint of the ultrasonic sealing machine respectively, but not limited to this, any heating effect that can achieve the melting of the inner bag 71 and the outer bag 72 Any combined device is acceptable, such as a hot melt machine, etc.

The positioning device 50 is arranged on the base 10, and the positioning device 50 includes a displacement seat 51 and a third suction cup 52, the displacement seat 51 is movably arranged on the base 10, the third suction cup 52 is connected to the displacement seat 51, and The first suction cup 20 , the second suction cup 30 and the third suction cup 52 are respectively externally connected with a negative pressure device to achieve the effect of suction. In this embodiment, the third suction cup 52 is used to absorb the inner surface of the inner bag 71 .

In a preferred embodiment, the displacement seat 51 further includes a lifting platform 511, a linear motor 514 and a ball screw 515. The lifting platform 511 has a frame body 512 and a first air cylinder 513. The frame body 512 can be used to Driven by the first air pressure cylinder 513, it is arranged on the lower base 12 so as to move up and down. In detail, the frame body 512 is four support rods and respectively passed through the lifting platform 511 through the bushings. The first air pressure cylinder The ejector rod of 513 is connected to the bottom surface of the lifting platform 511 so that the lifting platform 511 can be moved up and down by the telescopic drive of the first air cylinder 513; the linear motor 514 is arranged on the lifting platform 511, and one end of the ball screw 515 is connected to the linear motor 514 , the other end of the ball screw 515 is connected to the third suction cup 52; in detail, the third suction cup 52 can achieve the function of moving up and down by the lifting table 511 of the displacement seat 51 and the first air cylinder 513, and by the linear motor 514 rotates to drive the ball screw 515 to achieve the function of making the third suction cup 52 move back and forth, but it is not limited to this, any device that can make the displacement seat 51 achieve the displacement function is all right.

In a preferred embodiment, the third suction cup 52 further includes a suction head 521, a pressing plate 523 and a suction pipe 524. The suction head 521 is formed with a plurality of suction holes 522. The suction head 521 has two slopes connected up and down and respectively connected to The upper and lower planes connected by two slopes, a plurality of suction holes 522 run through the two planes of the suction head 521, the pressure plate 523 is horizontally arranged on the third suction cup 52 adjacent to the suction head 521, one end of the suction pipe 524 is connected to the suction head 521, and the suction pipe The other end of 524 is connected with the negative pressure device; In detail, the suction head 521 is viewed as a similar pentagonal structure from the side, and it is two connected slopes towards the front, and the other ends of the two connected slopes are respectively connected to a plane, and the two The other end of the plane opposite to the two slopes is connected to the pressure plate 523, and the pressure plate 523 is used to bear the pressure exerted by the upper joint 41 and the lower joint 42 of the ultrasonic machine.

Please refer to Fig. 3 to Fig. 10, the method for bonding the inner bag and the outer bag of the double-layer bag of the present invention, which uses the following steps to bond the double-layer bag body:

Step 1: Feed (S1)

Please refer to Fig. 3 and Fig. 9, the aforementioned step 1 conveys the double-layer bag 70 to the base 10 by means of the conveying device 80, wherein the opening of the inner bag 71 of the double-layer bag 70 and the opening of the outer bag 72 are located on the same side , and one end of the opening of the inner bag 71 protrudes from the opening end of the outer bag 72 to form a protrusion 711. When the double-layer bag 70 is in the working position, the position of the outer bag 72 adjacent to the opening is located on the first upper suction cup of the first suction cup 20 21 and the first lower suction cup 22, the protrusion 711 of the inner bag 71 is located between the second upper suction cup 31 and the second lower suction cup 32 of the second suction cup 30. In this embodiment, the protrusion 711 protrudes at least More than 2cm.

Step 2: Support the mouth (S2)

Please refer to shown in Fig. 5, the aforementioned step 2 sucks the first lower suction cup 22 of the first suction cup 20 to the lower side of the outer bag 72, the first upper suction cup 21 sucks the upper side of the outer bag 72 and moves upwards, the second The lower suction cup 32 sucks the lower side of the protrusion 711 of the inner bag 71, and the second upper suction cup 31 of the second suction cup 30 sucks the upper side of the protrusion 711 of the inner bag 71 and moves upward; The upward movement distance of the first upper suction cup 21 and the second upper suction cup 31 is 3 cm, but not limited thereto, and the moving distance can be changed according to the needs of users.

Step 3: Positioning (S3)

Please refer to Fig. 6, the aforementioned step three moves the third suction cup 52 into the inner bag 71 and sucks the inner bag 71. At this time, the second suction cup 30 cancels the adsorption, and the third suction cup 52 moves toward the outer bag. 72 moves inside until the opening of the inner bag 71 is aligned with the opening of the outer bag 72; in a preferred embodiment, please refer to FIG. The second lower suction cup 32 and the lower joint 42 .

Step 4: Bonding (S4)

Please refer to FIG. 8 , the upper joint 41 and the lower joint 42 of the engagement device 40 in the aforementioned step four move toward each other simultaneously and press the outer bag 72 to join the outer bag 72 with the inner bag 71, and the first The upper suction cup 21 also moves downward synchronously with the upper joint 41 until it is pushed against the pressure plate 523; in a preferred embodiment, the upper joint 41 and the lower joint 42 of the joint device 40 apply pressure to the pressure plate 523 of the third suction cup 52 respectively. , so that the outer bag 72 and the inner bag 71 are sandwiched between the upper joint 41 and the top surface of the pressing plate 523 and between the lower joint 42 and the bottom surface of the pressing plate 523 .

Step 5: Discharging (S5)

After the aforementioned step five is joined, please refer to Figure 10, the double-layer bag 70 forms a state where the inner bag 71 and the outer bag 72 are joined and the openings are aligned, and the joint forms a ring-shaped connecting portion 73, and the first suction cup 20 And the third suction cup 52 cancels the adsorption and returns to its original position, and the double-layer bag 70 is transferred to the receiving place by the conveying device 80 .

In the aforementioned manufacturing process, since the third suction cup 52 is further moved downwards against the first lower suction cup 22, the second lower suction cup 32 and the lower joint 42, it is possible to use the second suction cup during the process of applying pressure to the pressure plate 523 by the ultrasonic sealing machine. The support of the first lower suction cup 22 , the second lower suction cup 32 and the lower joint 42 increases the stability of the pressing plate 523 .

In the foregoing process, since the pressing plate 523 is provided, the smoothness of the contact surface of the ultrasonic sealing machine during pressure bonding can be increased to achieve a relatively complete bonding surface.

During the foregoing process, since the third suction cup 52 is driven forward and backward by the ball screw 515 , the displacement accuracy can be improved during the moving process.

In the foregoing process, since the third suction cup 52 has two slopes, it can enter the inner bag 71 more easily with a smaller entry area during the process of moving into the inner bag 71 .

The above descriptions are only preferred embodiments of the present utility model, and do not limit the utility model in any form. Although the utility model has been disclosed as above with preferred embodiments, it is not intended to limit the utility model. Of course, The utility model can also have other various embodiments, and any skilled person with common knowledge in the technical field can use the technical content disclosed above to make some changes or modifications without departing from the scope of the technical solution of the utility model. As an equivalent embodiment of an equivalent change, any simple modification, equivalent change and modification made to the above embodiments according to the technical essence of the present utility model without departing from the content of the technical solution of the utility model still belong to the utility model Within the scope of technical solutions and claims.

Claims (8)

1. an inner bag and outer bag bonding mechanism of a double-layer bag, is characterized in that, it comprises: A base, which has an upper seat and a lower seat; A first suction cup is arranged on the base, and the first suction cup includes: a first upper suction cup, which can be moved up and down on the upper seat; a first lower suction cup, which is fixed on the lower seat, and the first upper suction cup can be selectively attached to the first lower suction cup; A second suction cup is arranged on the base, and the second suction cup includes: A second upper suction cup, which can be moved up and down on the upper seat; A second lower suction cup, which is fixed on the lower seat, and the second upper suction cup can be selectively attached to the second lower suction cup; An engaging device, which is disposed on the base between the first suction cup and the second suction cup, and the engaging device includes: an upper joint, which is arranged on the upper seat so as to be able to move up and down; a lower joint, which can be moved up and down on the lower seat, and the upper joint can be selectively attached to the lower joint; A positioning device, which is arranged on the base, and the positioning device includes: a displacement seat, which is movably arranged on the base; A third suction cup is connected to the displacement seat, and the first suction cup, the second suction cup and the third suction cup are respectively externally connected with a negative pressure device. 2. The inner bag and outer bag bonding mechanism of the double-layer bag according to claim 1, wherein the displacement seat comprises: A lifting platform, which has a frame body and a first pneumatic cylinder, and the frame body is arranged on the lower seat so that it can move up and down by the first pneumatic cylinder; a linear motor, which is arranged on the frame; One end of a ball screw is connected to the linear motor, and the other end of the ball screw is connected to the third sucker. 3. The bonding mechanism of the inner bag and the outer bag of the double-layer bag according to claim 1 or 2, wherein the third suction cup further comprises a suction head, and the suction head is formed with a plurality of suction holes, and the suction head It has two inclined planes connected up and down and two planes connected up and down respectively with the two inclined planes, and the plurality of suction holes run through the two planes of the suction head. 4. The bonding mechanism of the inner bag and the outer bag of the double-layer bag according to claim 3, wherein the third suction cup further comprises a pressure plate, and the pressure plate is horizontally arranged on the third suction cup adjacent to the suction head . 5. The bonding mechanism of the inner bag and the outer bag of the double-layer bag according to claim 4, wherein the third suction cup is further connected with a suction pipe, one end of the suction pipe is connected with the suction head, and the other end of the suction pipe is connected with a suction pipe. Negative pressure device connection. 6. The bonding mechanism of the inner bag and the outer bag of the double-layer bag according to claim 5, further comprising at least one second pneumatic cylinder, each of which is arranged on the base and the The first upper suction cup and the second upper suction cup can move up and down by connecting the second air cylinders. 7. The bonding mechanism of the inner bag and the outer bag of the double-layer bag according to claim 6, wherein the bonding device is an ultrasonic sealing machine. 8. The bonding mechanism of the inner bag and the outer bag of the double-layer bag according to claim 6, wherein the bonding device is a hot-melt machine.