CN2471702Y

CN2471702Y - Hight adjustable front/rear sealing device

Info

Publication number: CN2471702Y
Application number: CN 01207959
Authority: CN
Inventors: 洪子钦
Original assignee: Individual
Current assignee: Individual
Priority date: 2001-03-16
Filing date: 2001-03-16
Publication date: 2002-01-16
Anticipated expiration: 2011-03-16

Abstract

The utility model relates to a height adjustable front/rear sealing device comprising a conveying belt for conveying packaging articles and packaging films. The interior of the conveying belt is provided with an alcove and is connected with a machine base. Both sides of the machine base are connected with orbits and the machine base can move forward and backward along the conveying belt driven by a driving device. The machine base is provided with an upper sealing seat and a lower sealing seat which form an up and down linking state, and the upper sealing seat can be driven by a pair of driving components to match with the lower sealing seat and cooperate with the front and the rear displacements so as to do continuous front and rear seals to the packaging films on the conveying belt. The height adjustable device is arranged above the upper sealing seat and can adjust the sealing travel ranges of the upper and the lower sealing seats so as to adjust the height of the front and the rear seals of the packaging films.

Description

Can adjust the front and back closing device of sealing height

The utility model relates to a kind of closing device that processing is sealed in the packaging film front and back end that is used for, and particularly relates to a kind of front and back closing device of adjusting sealing height.

Press, plastic packaging film is widely used in outer package of food such as biscuit, fast food product, or is used for the CD software package, and the appearance encapsulation of article such as CD musical film and books can be guaranteed the bright and new neat of the fresh of food and article appearance.Yet, in the packaging process of reality, must utilize the packaging film sealing machine that processing is sealed in the forward and backward and both sides of packaging film, can make article be packaged in the packaging film fully, therefore, packing speed and quality depend on the performance of sealing device or closing device fully.

Representative type packaging film closing device is a kind of L formula sealing device, and it can seal the front and back ends and the both sides of packaging film simultaneously.But when practical operation, for each connection with wrapping of piece, then be to take the intermittence of passive type to seal processing, be that sealing device is waited in the original place when packing material and packaging film are put in place by the load-transfer device conveying, just carry out forward and backward sealing operation, so the speed of forward and backward sealing operation is restricted, can't be applied to the occasion of continuous high speed packing, the packaging efficiency of product is had a greatly reduced quality.

In addition, because the shape of connection with wrapping of piece is not to be the rectangular block of standard or rule, its length and width size all is not quite similar, the also non-unanimity of its thickness, during event the position (as shown in figure 10) obviously on the low side of sealing line A or the situation of sealing line A ' obviously higher (as shown in figure 11) are arranged, have a strong impact on the package quality and the outward appearance of product.When the position of sealing line A is on the low side, undue push-through packs thing B is made it distortion, or make the damaged or cracking of packaging film local; Otherwise, when sealing line A ' is higher, then make between packaging film and the packing material B to seem loose, not only coating materials is packed in waste, and will have a strong impact on the packaging quality of product.

The purpose of this utility model promptly is to provide a kind of front and back closing device, so that sealing height can be adjusted with the thickness of connection with wrapping of piece before and after the connection with wrapping of piece, thereby makes the sealing height of packaging film reach desirable position; Simultaneously, before and after making closing device can before and after displacement and initiatively packaging film is carried out front and back and seal, make the front and back of connection with wrapping of piece seal and can carry out continuously, and then raising package speed and efficient.

To achieve these goals, the utility model utilizes load-transfer device, support, actuating device, upper sealing base, lower seal seat, movable pedestal, driven unit and height adjuster to constitute a kind of front and back closing device of adjusting sealing height.Be used for the load-transfer device and the support binding of conveying and packaging article and packaging film and be provided with an alcove; The support both sides are provided with track and can be driven by actuating device and move forward and backward along load-transfer device, and support is provided with upper sealing base and lower seal seat and forms up and down that interlock coincide and packaging film is carried out forward and backward sealing; Upper sealing base is provided with height adjuster, adjusting the stroke that seals between upper and lower envelope seat, and then adjusts the front and back sealing height of packaging film.

Based on above structure, the utility model available height setting device makes the forward and backward sealing height of connection with wrapping of piece adjust with the thickness of connection with wrapping of piece, initiatively carrying out front and back near connection with wrapping of piece seals processing to utilize moving forward and backward of support can make the front and back closing device, thereby improves packing speed and efficient.

The technical characterictic that can adjust the front and back closing device of sealing height to the utility model below in conjunction with specific embodiment is described in further detail.

Fig. 1 is a three-dimensional appearance constructional drawing of the present utility model;

Fig. 2 is the binding scheme drawing of support and load-transfer device;

Fig. 3 is the binding scheme drawing of actuating device and support;

Fig. 4 is the binding scheme drawing of upper sealing base and lower seal seat;

Fig. 5 is the interlock constitution diagram of upper sealing base and lower seal seat;

Fig. 6 is the scheme drawing of the front and back shift length of adjustment support;

Fig. 7 is the scheme drawing of scratching front and back displacement of support by alcove;

Fig. 8 heightens the scheme drawing that upper and lower envelope seat seals stroke;

Fig. 9 turns down the scheme drawing that upper and lower envelope seat seals stroke;

Figure 10 is existing connection with wrapping of piece sealing line scheme drawing on the low side;

Figure 11 is the existing higher scheme drawing of connection with wrapping of piece sealing line.

Shown in figure 1,2,3, the front and back closing device 100 that the utility model can be adjusted sealing height comprises the load-transfer device 10 that is used for conveying and packaging article and packaging film D, this load-transfer device 10 is wound into upper and lower reciprocal path by some roller bearings 11 and 11 ' and by motor 12 transmissions, load-transfer device 10 is provided with the alcove 13 that is made of the coiling path, 4 roller bearings 11 ' around it are linked on the support 20, make alcove 13 become the moving part of flexible, promptly under the state of support 20 forward and backward displacements, alcove 13 still can keep its original state.

The both sides of support 20 respectively are provided with sliding part 21 and are linked to track 22 respectively, and the fixed form of track 22 is regardless of, and as being fixed on the package packing machine, make the support 20 can be along track 22 front and back displacements.The two bottom sides of support 20 respectively is provided with a

plate

23,24, links to each other with at least one transverse axis 25 therebetween, and both sides, support 20 top are respectively equipped with hole slot 26.

Actuating device 30 comprises motor 31, retarder 32, adjusts seat 33 and connecting rod 34.The output shaft 311 of motor 31 links to each other with retarder 32, thinks retarder 32 imput powers; The output shaft 321 of retarder 32 then links to each other with adjustment seat 33 1 ends, makes circular movement so as to driving adjustment seat 33; Adjust in the seat 33 and be provided with movable port 331, its inboard two ends are bolted with screw rod 332 respectively, and an end of screw rod 332 passes to be adjusted seat 33 and be provided with an operating portion 333, rotary manipulation portion 333 screw rod 332 is stretched out or the movable port 331 of withdrawing in; The two ends of connecting rod 34 are socketed with a connecting arm 341 respectively, 342, its end respectively is provided with a joint 343, the joint 343 of connecting arm 341 is linked on the transverse axis 25 of support 20 bottoms, 343 in the joint of connecting arm 342 links one 344 and links to each other with the outside of movable block 345 by axle 344, the form of this movable block 345 is regardless of, in the utility model for the nut form and be threaded on the screw rod 332 of adjusting seat 33, making connecting rod 34 is an eccentric operating and the position of joint 343 on screw rod 332 that utilizes operating portion 333 change connecting arms 342 for the output shaft 321 of retarder 32, also promptly change the arm of force length of eccentric operating, at least be provided with an elastic buffer assembly 35 on the connecting rod 34 in the actuating device 30, each connecting arm 341 during with buffering connecting rod 34 eccentric motions, 342 vibratory force, and utilize the connecting arm 341 and the binding of support 20 bottom transverse axis 25 and the whole eccentric motion of connecting rod 34 of connecting rod 34 1 ends, make support 20 preceding by track 22 guidings, back crank motion; During the position of the joint 343 of adjusting connecting arm 342 on screw rod 332, adjustable complete machine seat 20 forward and backward reciprocating strokes.

Shown in figure 4,5, closing device 100 also comprises upper sealing base 40 and lower seal seat 50 before and after the utility model, be serially connected with between the upper and lower end of support 20 with some orientation levers 41 and 51 respectively, but make the both sides perpendicular movement of upper sealing base 40 and lower seal seat 50, and make lower seal seat 50 place the alcove 13 of load-transfer device 10.Each binding of the two ends of upper sealing base 40 and lower seal seat 50 has a

tooth bar

42,52, place, support 20 two sides between the

tooth bar

42 and 52 is provided with a

gear

43,53 at least, for

tooth bar

42,52 engagements, the tooth bar 42 that wherein is linked to upper sealing base 40 makes tooth bar 42 can and break away from

gear

43 and 53 by means of the slightly outside skew of the elastic force of compression spring 421 under the situation of no extraneous thrust for form and its top that articulates is provided with a compression spring 421; On support 20, be provided with one and import assembly 422 with respect to tooth bar 42 outsides, its form is regardless of, can be electromagnet or air cylinder constitutes, its throw rod 422 ' extended conflict tooth bar 42 and make it inwardly to promote tooth bar 42 and

gear

43 and 53 engagements forms the upper and lower continuous action relation of upper sealing base 40 and lower seal seat 50.During as upper sealing base 40 displacement vertically downward,, the tooth bar 52 that connects lower seal seat 50 is driven and motion vertically upward by

gear

43,53 by tooth bar 42 driven

gear

43,53 rotations respectively.Be respectively equipped with electric heating closing component 44,45 in upper sealing base 40 and the lower seal seat 50, seal in order to packaging film D being added thermal cut with electric heating and upper and lower identical mode.

Height adjuster 60 is located at the top of support 20, and the two ends of its adjusting lever 61 are fixed on the support 20 by a pair of adapter plate 611,612, and its two ends are respectively equipped with

gear

613 and 614, and at least one end is provided with one handle 615 and is used for rotating operation adjusting lever 61; A pair of

helical wheel

62,63 be located at the two ends at support 20 tops and respectively with the gear 613 at adjusting lever 61 two ends and 614 engagements, just to change by adjusting lever 61 or to reverse drive,

helical wheel

62 and 63 bottom then are connected with

screw rod

64 and 65 downwards,

screw rod

64 and 65 end are combined with

base

66,67 respectively, so that

screw rod

64,65 original place rotation in

base

66,67, and

base

66,67 is incorporated into the below of the hole slot 26 of support 20 both sides respectively.

Movable pedestal 70 is located at the top of upper sealing base 40, its inboard is respectively equipped with

Connection Block

71,72, with the top of socket, the path of motion of itself and upper sealing base 40 and lower seal seat 50 is all vertically upward or downwards to the

orientation lever

41,51 of

upper sealing base

40 and 50 serial connections of lower seal seat; Two external side ends of movable pedestal 70 are respectively equipped with

auricle

73 and 74, and can correspondingly respectively snap in the hole slot 26 of support 20 both sides, be respectively equipped with

screw

731 and 741 on the

auricle

73,74, corresponding screw lock is on the

screw rod

64,65 of height adjuster 60, so that movable pedestal 70 can be made upper and lower vertical displacement by the just commentaries on classics or the reverse of adjusting lever 61 respectively.

A pair of driven unit 80 is fixedly arranged on the movable pedestal 70, its form is regardless of, can constitute by air cylinder or electromagnet, its throw rod passes movable pedestal 70 respectively and is linked on the upper sealing base 40, so that upper sealing base 40 also can be with movable pedestal 70 with just the changeing or reverse the vertical dimension adjustment of doing up or down of the adjusting lever 61 of height adjuster 60, and upper sealing base 40 is done vertically upward or downward motion with the flexible of throw rod of driven unit 80.And when upper sealing base 40 need carry out height adjustment with movable pedestal 70, the engagement that can make the throw rod 422 ' withdrawal that imports assembly 422 and make tooth bar 42 break away from

gear

43 and 53 by means of the outside skew of the elastic force of compression spring 421, upper sealing base 40 can be done vertically upward or downward height adjustment easily, again again by importing assembly 422 actions, make tooth bar 42

engaging gear

43 and 53 again behind the location to be adjusted.And this adjustment just changes

gear

43 and 53 and the initial engagement position of 42 of tooth bars, also promptly changes the stroke of upper sealing base 40 perpendicular movements, and the upwards stroke of perpendicular movement of lower seal seat 50 also can correspondingly change.

Front and back of the present utility model closing device 100 also comprise a pair of be located at appropriate location, support 20 front end both sides seal sensor 10, its form is regardless of, can be photoelectric sensor switch or infrared inductor constitutes, so as to the connection with wrapping of piece C of sensing load-transfer device 10 near support 20, make driven unit 80 can drive upper sealing base 40 downwards and interlock lower seal seats 50 upwards, thereby both electric

heating closing component

44,54 is coincide and packaging film D done before and after seal processing.

The action and the control of front and back closing device 100 each components mechanism shown in Fig. 1-5 can be carried out by the control circuit of micro computer, program controller or equivalence, and this non-present patent application category is so will not describe in detail.

Shown in figure 6,7, when front and back closing device 100 practical applications and operation, can use and adjust the arm of force length of its eccentric operating in conjunction with automatic packaging machinery by the connecting rod 34 of adjusting actuating device 30 and the coupling position of adjusting seat 33, promptly adjust the distance of support 20 along load-transfer device 10 forward and backward displacements, this adjustment is decided by length and the desired package speed of connection with wrapping of piece C.When support 20 during along load-transfer device 10 front and back displacements, alcove 13 in the load-transfer device 10 produces scratches, can be with support 20 front and back displacements, and the shape of the global shape of load-transfer device 10 and alcove 13 and conveying function are all unaffected, make upper sealing base 40 and the lower seal seat 50 can be with moving of support 20 initiatively near connection with wrapping of piece C and packaging film D, and utilize the front end or the rear end of sealing 90 couples of connection with wrapping of piece C of sensor to carry out sensing, make driven unit 80 drive upper sealing bases 40 and lower seal seat 50 coincide vertically downward and upwards, and utilize electric

heating closing component

44,54 add thermal cut and packaging film D are carried out front and back continuously seal.

Shown in figure 8,9, front and back closing device 100 can be adjusted the front and back sealing height of the connection with wrapping of piece of different-thickness.When connection with wrapping of piece C is thicker, as pressing normal condition, its sealing height is with on the low side, but when the height that utilizes 60 pairs of movable pedestals 70 of height adjuster and upper sealing base 40 is adjusted, can make the height of upper sealing base 40 rise to the appropriate location, promptly change its stroke vertically downward, also corresponding lower seal seat 50 stroke vertically upward that changed of while, make electric

heating closing component

44,54 are fit to the also corresponding rising of height of sealing before and after the packaging film D, make the height of final sealing line E be positioned at 1/2 ideal position place of connection with wrapping of piece thickness, equally, when connection with wrapping of piece C ' is thin, can turn down upper sealing base 40 and movable pedestal 70 by height adjuster 60, make the height of the front and back end sealing line E ' of packaging film D be positioned at 1/2 place of the thickness of connection with wrapping of piece C ' just.As seen, sealing height before and after the utility model can be adjusted at the connection with wrapping of piece of various different-thickness, thus improve packing of product quality and save the packing coating materials.

In sum as can be known, the utility model is to simplify the actv. unit construction the most and to adjust operating mode simply and easily, sealing height can be adjusted with the thickness of connection with wrapping of piece before and after making packaging film, also can carry out front and back simultaneously continuously and seal processing and product is done the high speed encapsulation, thereby have very high industrial utilization.

Claims

1, a kind of front and back closing device of adjusting sealing height is characterized in that comprising load-transfer device, support, upper sealing base and lower seal seat, movable pedestal, a pair of driven unit and height adjuster; Described load-transfer device is wound into upper and lower reciprocal path by roller bearing, which is provided with the alcove that is made of the coiling path; The lower end of described support is linked in the alcove of load-transfer device, and its dual-side links the track that is useful on the front and back displacement respectively, and the outside, both sides is respectively equipped with hole slot; Described actuating device comprises motor, retarder, adjustment seat and connecting rod, and motor links to each other with retarder, reducer output shaft with adjust seat and link to each other and drives and adjust seat and make circular movement, pipe link one end off-centre is linked in the adjustment, the other end is linked on the support; Described upper sealing base and lower seal seat are divided into the upper/lower terminal of support, being equipped with some orientation levers therebetween also can move along orientation lever is upper and lower, linking respectively on the dual-side has tooth bar and with gear mesh, gear is located on the support, is respectively equipped with the electric heating closing component that is used to make the packaging film heat sealing in upper sealing base and the lower seal seat; Described movable pedestal is located at the orientation lever top of upper sealing base top and can be moved up and down, and its both sides respectively are provided with an auricle and corresponding snapping in the hole slot of support both sides; Described driven unit is located on the movable pedestal, and its throw rod is linked on the upper sealing base after passing movable pedestal; Described height adjuster is located at the support upper end and is comprised the adjusting lever that can just change or reverse, the two ends of adjusting lever are respectively equipped with a gear and mesh with helical wheel, the helical wheel below links a screw rod, screw rod is linked to base after passing the auricle of movable pedestal, and base is incorporated into the hole slot below of support both sides.

2, the front and back closing device of adjusting sealing height according to claim 1 is characterized in that the alcove of described load-transfer device is formed around volume by some roller bearings, and roller bearing is linked to the support below.

3, the front and back closing device of adjusting sealing height according to claim 1 is characterized in that described load-transfer device is by drive of motor.

4, the front and back closing device of adjusting sealing height according to claim 1, the front end both sides that it is characterized in that support are respectively equipped with the sensor that seals that is used for connection with wrapping of piece on the sensing load-transfer device.

5, the front and back closing device of adjusting sealing height according to claim 4 is characterized in that the described sensor that seals is opto-electronic pickup or infrared inductor.

6, the front and back closing device of adjusting sealing height according to claim 1 is characterized in that described support both sides respectively are provided with a sliding part that is connected with two siding tracks.

7, the front and back closing device of adjusting sealing height according to claim 1 is characterized in that being bolted with a screw rod in the adjustment seat of described actuating device, and described connecting rod is by the unification movable block that is coupling, and movable block is threaded in the screw rod.

8, the front and back closing device of adjusting sealing height according to claim 7 is characterized in that the end binding of described connecting rod has a connecting arm, and there is a joint its terminal binding and is linked to axle.

9, the front and back closing device of adjusting sealing height according to claim 7 is characterized in that described screw rod passes the adjustment seat, and the end of screw rod is provided with the operating portion of rotary manipulation screw rod.

10, the front and back closing device of adjusting sealing height according to claim 1 is characterized in that both sides, described support lower end respectively are provided with a plate, and linking therebetween has a transverse axis; Connecting rod one end of described actuating device is connected with a connecting arm, and the connecting arm end is provided with a joint and is linked on the transverse axis of support lower end.

11, the front and back closing device of adjusting sealing height according to claim 1 is characterized in that being provided with an elastic buffer assembly at least on the connecting rod of described actuating device.

12, the front and back closing device of adjusting sealing height according to claim 1 is characterized in that the tooth bar that described upper sealing base links is pivot joint, and its upper end links a compression spring, and tooth bar inwardly pushes engaging gear by importing the assembly throw rod.

13, the front and back closing device of adjusting sealing height according to claim 12 is characterized in that described importing assembly is that electromagnet or air cylinder constitute.

14, the front and back closing device of adjusting sealing height according to claim 1 is characterized in that described lower seal seat is arranged in the alcove of load-transfer device.

15, the front and back closing device of adjusting sealing height according to claim 1 is characterized in that the inboard of described movable pedestal is provided with the Connection Block of socket orientation lever.

16, the front and back closing device of adjusting sealing height according to claim 1, the auricle that it is characterized in that described movable pedestal are provided with a screw and are screwed with the screw rod of height adjuster.

17, the front and back closing device of adjusting sealing height according to claim 1, what it is characterized in that described driven unit is that electromagnet or air cylinder constitute.

18, the front and back closing device of adjusting sealing height according to claim 1 is characterized in that the adjusting lever two ends of described height adjuster are fixed by adapter plate.

19,, it is characterized in that described adjusting lever one end is provided with the handle of rotating operation according to claim 1 or the described front and back closing device of adjusting sealing height of claim 18.