CN2288028Y

CN2288028Y - Metal strip sewing machine

Info

Publication number: CN2288028Y
Application number: CN 96236203
Authority: CN
Inventors: 谢咏山; 胡昌兰
Original assignee: XI AN HEAVY DUTY MACHINERY INS
Current assignee: XI AN HEAVY DUTY MACHINERY INS
Priority date: 1996-08-06
Filing date: 1996-08-06
Publication date: 1998-08-19
Anticipated expiration: 2006-08-06

Abstract

The utility model relates to a metal strip sewing machine adopting a mechanical punching mode to make the heads and the tails of two metal strips connect with each other, mainly composed of a movable beam installed on a machine frame, a driving oil cylinder of the movable beam and an upper and a lower punching moulds, wherein, one punching mould is fixedly connected with the movable beam, the other punching mould is fixedly connected with the machine frame, and the punching and shearing edges of the punching moulds form stepped shapes in a punching direction. When the utility model is used for sewing, the two strips are overlapped and are firstly punched and sheared with a row step-shaped cuts, and then the two strips are staggered, the cuts of the two strips can be engaged together so that the two strips are connected with each other.

Description

The sheet metal strip sewing machine

The utility model belongs to metal stamping equipment, is a kind of stitcher of coupling together of initial and ends that is used for two volume sheet metal strips.

In the production of some sheet metal strip product,, need the initial and end of two volume sheet metal strips is coupled together as on the sheet metal strip surface coating line.The methods of attachment of two volume sheet metal strips mainly contain welding, bonding and manual suture etc. in existing production.Above-mentioned method of attachment or efficient are low, of poor quality, and perhaps cost is higher, and the planarization that connects is also relatively poor.

The mechanical type sheet metal strip sewing machine that the purpose of this utility model provides and a kind ofly is connected firmly, efficient is higher.

The purpose of this utility model is to realize by following approach: the sheet metal strip sewing machine that is provided comprises the driving oil cylinder and the upper and lower punch die of a frame, walking beam moving up and down, this walking beam, one of them punch die connects firmly on walking beam, and another punch die connects firmly on frame.Aforesaid punch die is provided with row's drift, and there is the punching sword drift both sides, and it is stepped to see that from pressing direction each punching sword is, and wherein has at least a stepped punching sword opposite with the trend of remaining stepped punching sword.Earlier that the stem and the afterbody of band is overlapping during stitching, send between the upper and lower punch die; Restart oil cylinder, make upper and lower punch die implement punching, on band, form the stepped otch of a row the initial and end lap of band; Then as long as, the stepped otch of band initial and end portion is interlocked, thereby two coiled strips are coupled together with the longitudinally relative changing of the relative positions of the initial and end portion of band.

The utility model adopts mechanical punching mode that the initial and end portion of two bands is interlocked mutually, thereby production technology is simple, efficient is higher, and it is firm to connect, and also greatly reduces production cost.The utility model is specially adapted in the automatic production line.

Below in conjunction with accompanying drawing content of the present utility model is illustrated.

Fig. 1 is a structure diagram of the present utility model.

Fig. 2 is the side view of Fig. 1.

Fig. 3 is the schematic diagram of Fig. 2 middle gear tooth bar lazy-tongs.

Fig. 4 is the installation diagram of drift.

Fig. 5 is the stereogram of the utility model drift.

Fig. 6 is the otch schematic diagram that this sewing machine is gone out on band.

Fig. 7 is the otch interlock figure of band initial and end portion.

As shown in Figure 1 and Figure 2: walking beam 2 is housed on the stirrup frame 1, and it is driven by oil cylinder 3, can move along the track (not drawing among the figure) of frame 1 both sides is upper and lower.Upper trimming die 4 connects firmly top in frame 1 by upper bolster 5; Following punch die 6 connects firmly on walking beam 2 by die shoe 7, is provided with lead 8 between upper and lower punch die, in order to guarantee the positioning accuracy of mould.When the band broad, the also inevitable broad of punch die and walking beam can be provided with rack-and-pinion lazy-tongs 9 in such cases between walking beam 2 and frame 1, so that guarantee punch die its two ends, left and right sides stress equalization and positioning accuracy when the rising punching down.These lazy-tongs 9 are made up of two tooth bars 10 and coaxial mounted two gears 11 that connect firmly respectively at walking beam 2 both ends, and wherein gear shaft is installed on the frame 1, its structure such as Fig. 2, shown in Figure 3.Carrying roller 12 is used to carry band.

As shown in Figure 4: upper trimming die of the present utility model has a plurality of drifts 13, and they connect firmly on drift connecting plate 14 with screw earlier, and per four drifts are one group, and then with screw connecting plate 14 are connected firmly on upper bolster 5.The installation of following punch die is identical with upper trimming die.The drift of upper and lower punch die is alternate staggered, forms punching unit one by one.The shape of drift 13 as shown in Figure 5, wherein punching sword 15 is stepped.The otch that punching goes out is as shown in Figure 6: otch 16 is opposite with the ladder trend of otch 17, so that can not take place laterally mobile after the interlock.Upper and lower otch opens after the punching, such as cutout regions 18 is recessed, then adjacent cutout regions 19 epireliefs.So as long as with upper strata band 20 and lower floor's band 21 changing of the relative positions longitudinally, the stepped otch of two bands will be interlocked.The state of interlock is as shown in Figure 7: the edge of the preceding upper strata of interlock band 20 is in 24 places, position.The edge of upper strata band 20 is in 25 places, position after the interlock, and the notch portion of lower floor's band 21 be positioned at upper strata band notch portion above, thereby up and down band is interlocked.

On production line, deliver to slicking-in roller after the two band interlocks and flatten, in order to avoid the equipment of damage back.If band self intensity is lower, can after crossing a tape, interlock place go again to flatten.

Claims

1, a kind of sheet metal strip sewing machine, it is characterized in that comprising the driving oil cylinder (3) and the upper and lower punch die (4,6) of a frame (1), a walking beam moving up and down (2), this walking beam, one of them punch die (4) connects firmly on walking beam (2), another punch die (6) connects firmly on frame (1), aforesaid punch die is provided with row's drift (13), there is punching sword (15) drift (13) both sides, it is stepped to see that from pressing direction each punching sword is, and wherein has at least a stepped punching sword opposite with the trend of remaining stepped punching sword.

2, stitcher as claimed in claim 1, it is characterized in that between walking beam (2) and frame (1), being provided with rack-and-pinion lazy-tongs (9), these lazy-tongs (9) are made up of two tooth bars (10) and coaxial mounted two gears (11) that connect firmly respectively at walking beam (2) both ends, and wherein gear shaft is installed on the frame (1).