Linear driving device of template sewing machine
Technical Field
The invention relates to a full-automatic template sewing machine, in particular to a linear driving device of the template sewing machine.
Background
The application of the clothing template can be traced back to Germany in the last 60 years, and at the moment, the sewing machine is fixed with a stainless steel plate or an aluminum plate to finish the sewing with a fixed track so as to finish the automatic sewing with the conventional and simple procedures. Through decades of development, the template technology is continuously improved, and the application field of the template is continuously expanded, wherein the most common technology is the simple template technology applied to a common flat car. The simple template technology has the defects of low automation degree and manual auxiliary steering of an operator in the use process. In addition, the template is relatively simple, mainly aims at the sewing of small cut pieces, and cannot be used for sewing products with complicated patterns and large single body area.
The most advanced full-automatic template sewing machine in the prior art adopts a numerical control mode, and the application field of the template is further improved. The template driving mode of the common full-automatic template sewing machine is as follows: the gear directly contacts the guide bar of the template, and the movement of the template in one direction is realized by the rolling of the gear. In the structure, rolling friction exists between the template and the gear, and the template guide strip is made of plastic materials, so that the abrasion can occur after long-term use.
Disclosure of Invention
The invention aims to provide a linear driving device of a template sewing machine, which can realize the movement of a template in one direction and avoid the occurrence of abrasion.
In order to solve the technical problem, the technical solution of the linear driving device of the template sewing machine of the invention is as follows:
the belt type belt pulley comprises a main body 1, wherein a synchronous belt 26 is arranged in the main body 1, the synchronous belt 26 is connected with a driving belt pulley 10 and a driven belt pulley 8, and the driving belt pulley 10 is connected with a motor 4 through gear pairs 11 and 12; the synchronous belt 26 is fixedly connected with the movable seat 6, and the synchronous belt 26 can drive the movable seat 6 to move along the main body 1; the main body 1 is fixedly provided with a magnetic switch 5, and the movable seat 6 is fixedly provided with a magnet 21; the main body 1 is fixedly connected with a module connecting plate 7; the motor 4 drives the driving belt wheel 10 to rotate through the gear pairs 11 and 12 to drive the synchronous belt 26 to run, so that the moving seat 6 is driven to move through the synchronous belt 26; when the magnet 21 on the movable seat 6 approaches the magnetic switch 5 during the movement of the movable seat 6, the magnetic switch 5 is triggered, and the magnetic switch 5 controls the motor 4 to stop the movement of the movable seat 6.
The driving belt wheel 10 is arranged in the driving belt wheel seat 3, and the driving belt wheel seat 3 is fixedly connected with one end of the main body 1; two ends of the driving belt wheel 10 are connected with the driving belt wheel seat 3 through bearings 9; one end of the driving pulley 10 is connected with a driven gear 11; the driven gear 11 is engaged with the driving gear 12, and the driving gear 12 is connected with a motor shaft of the motor 4.
An orifice at one end of the driving pulley seat 3 is covered by a cover plate 25; the other end of the driving pulley seat 3 is provided with a motor mounting plate 16, and the motor 4 is fixedly arranged on the motor mounting plate 16.
The driven belt wheel 8 is arranged in the driven belt wheel seat 2, and the driven belt wheel seat 2 is fixedly connected with the other end of the main body 1; two ends of the driven belt wheel 8 are connected with the driven belt wheel seat 2 through a bearing 9; the two end openings of the driven pulley seat 2 are respectively provided with a cover plate 25.
The main body 1 is fixedly connected with a linear guide rail 27, two sliding tables 23 are movably arranged on the linear guide rail 27, and the sliding tables 23 are fixedly connected with two ends of the movable seat 6; the mobile seat 6 is able to move along the linear guides 27.
A moving seat sliding area 101 and a synchronous belt moving area 103 are formed in the main body 1, and a magnetic switch mounting groove 102 is formed in the outer edge of the main body 1; the front side of the moving seat sliding area 101 is open, and the linear guide 27 is fixedly arranged at the rear side of the moving seat sliding area 101; a coupling nut mounting groove 104 is formed in the rear side of the movable seat sliding region 101, and the coupling nut 28 is arranged in the coupling nut mounting groove 104; the coupling nut 28 can move in the coupling nut mounting groove 104, and the coupling nut 28 is locked and fixed after the linear guide rail 27 determines the mounting position; the synchronous belt 26 is arranged in the synchronous belt movement area 103; the cross-sectional shape of the magnetic switch mounting groove 102 is matched with the cross-sectional shape of the magnetic switch 5, and the magnetic switch 5 is arranged in the magnetic switch mounting groove 102.
The synchronous belt 26 is fixedly connected with the movable seat 6 through a belt fixing seat 17; the movable base 6 is provided with a guide 601; a guide groove 1701 matched with the guide part 601 is formed on the belt fixing seat 17; the belt fixing base 17 is coupled to the movable base 6 by the guide groove 1701 and the guide portion 601.
Two ends of the movable seat 6 are provided with connecting sleeve mounting holes, and connecting sleeves 19 penetrate through the connecting sleeve mounting holes; an adjusting screw 18 is arranged in the belt fixing seat 17 in a penetrating manner; the axial direction of the coupling sleeve 19 is perpendicular to the axial direction of the adjusting screw 18; the adjusting screw 18 passes through the belt fixing seat 17 along the longitudinal direction and then passes through a radial threaded hole of the connecting sleeve 19; after the synchronous belt 26 is tensioned and adjusted in place, finally, the screw 20 penetrates into the axial positioning hole of the connecting sleeve 19, and the adjusting screw 18 is propped and fixed through the screw 20, so that the fixed connection between the belt fixing seat 17 and the movable seat 6 is realized.
The motor mounting plate 16 is connected with a gear gap adjusting mechanism and is used for adjusting a gap between the driving gear 12 and the driven gear 11; the gear clearance adjusting mechanism comprises an adjusting seat 13, and the adjusting seat 13 is connected with a motor mounting plate 16 through an adjusting screw 14 and a nut 15;
the gear clearance adjusting method of the gear clearance adjusting mechanism comprises the following steps: before the gear clearance is not determined, the motor mounting plate 16 and the driving pulley seat 3 are not completely fixed at the moment, the motor mounting plate 16 is pushed through the adjusting screw 14, the gear clearance meets the mounting requirement, the nut 15 is screwed after the clearance is determined, and finally the fixing screw on the motor mounting plate 16 is screwed, so that the motor mounting plate 16 and the driving pulley seat 3 are completely fixed.
The main body 1 is an aluminum profile.
The invention can achieve the technical effects that:
the invention structurally avoids the rolling friction between the template and the gear, and can fundamentally avoid the occurrence of abrasion.
The stepping motor drives the module through the gear pair, and the stress is directly and stably applied.
The main body of the invention is provided with a special mounting groove for mounting the magnetic switch and the coupling nut, and the mounting groove can freely move in the groove and is convenient for adjustment.
The invention has a gear adjusting device, and can finely adjust the clearance.
The invention is provided with a magnetic switch and a magnet for controlling the stroke; and the magnetic switch is arranged in the groove, so that the installation is convenient and the appearance is attractive.
Drawings
The invention is described in further detail below with reference to the following figures and detailed description:
FIG. 1 is a schematic view of a linear drive assembly of the template sewing machine of the present invention;
FIG. 2 is an exploded schematic view of the present invention;
FIG. 3 is a schematic cross-sectional view of the body of the present invention;
FIG. 4 is a schematic cross-sectional view of the present invention;
FIG. 5 is a schematic view of the coupling nut of the present invention;
FIG. 6 is a schematic view of the connection between the movable base and the belt fixing base of the present invention;
FIG. 7 is a schematic view of the connection of the timing belt of the present invention to the belt mount;
fig. 8 is a partially enlarged schematic view of the motor end of the present invention.
The reference numbers in the figures illustrate:
1 is a main body, 2 is a driven pulley seat,
3 is a driving pulley seat, 4 is a stepping motor,
5 is a magnetic switch, 6 is a movable seat,
7 is a module connecting plate, 8 is a driven belt wheel,
9 is a bearing, 10 is a driving belt wheel,
11 is a driven gear, 12 is a driving gear,
13 is an adjusting seat, 14 is an adjusting screw,
15 is a nut, 16 is a motor mounting plate,
17 is a belt fixing seat, 18 is an adjusting screw rod,
19 is a connecting sleeve, 20 is a screw,
21 is a strong magnet, 22 is a screw,
23 is a sliding table, 24 is a screw,
25 is a cover plate, 26 is a synchronous belt,
27 is a linear guide, 28 is a coupling nut,
101 is a sliding area of the movable seat, 102 is a magnetic switch mounting groove,
103 is a synchronous belt motion area, 104 is a connecting nut mounting groove,
reference numeral 601 denotes a guide portion, and 1701 denotes a guide groove.
Detailed Description
As shown in fig. 1, the linear driving device of the template sewing machine of the invention comprises a main body 1, a synchronous belt 26 is arranged in the main body 1, the synchronous belt 26 is connected with a driving pulley 10 and a driven pulley 8, the driving pulley 10 is connected with a stepping motor 4 through a speed change gear pair 11, 12;
one end of the main body 1 is fixedly connected with a driving pulley seat 3, and the other end of the main body 1 is fixedly connected with a driven pulley seat 2; the driving pulley seat 3 and the driven pulley seat 2 are respectively fixedly connected with the main body 1 through screws 22;
as shown in fig. 2, the driving pulley 10 is disposed in the driving pulley seat 3, and two ends of the driving pulley 10 are connected to the driving pulley seat 3 through bearings 9; one end of the driving pulley 10 is connected with a driven gear 11; the driven gear 11 is meshed with the driving gear 12, and the driving gear 12 is connected with a motor shaft of the stepping motor 4;
an orifice at one end of the driving pulley seat 3 is covered by a cover plate 25; the other end of the driving pulley seat 3 is provided with a motor mounting plate 16, and the stepping motor 4 is fixedly arranged on the motor mounting plate 16;
the driven belt wheel 8 is arranged in the driven belt wheel seat 2, and two ends of the driven belt wheel 8 are connected with the driven belt wheel seat 2 through bearings 9; the orifices at the two ends of the driven pulley seat 2 are respectively provided with a cover plate 25 to prevent impurities from polluting the bearing 9;
the synchronous belt 26 is fixedly connected with the movable seat 6, and the synchronous belt 26 can drive the movable seat 6 to move left and right along the main body 1;
the main body 1 is fixedly connected with two module connecting plates 7; the main body 1 is fixedly connected with a sewing machine body through a module connecting plate 7;
the main body 1 is fixedly provided with a magnetic switch 5, and the magnetic switch 5 is fixedly connected with the main body 1 through a screw 24; the power line of the magnetic switch 5 is connected with the electric control; a strong magnet 21 is fixedly arranged on the movable seat 6;
the stepping motor 4 drives the driving belt wheel 10 to rotate through the speed change gear pairs 11 and 12 to drive the synchronous belt 26 to run, so that the moving seat 6 is driven to move left and right through the synchronous belt 26; when the strong magnet 21 on the moving seat 6 approaches the magnetic switch 5 in the process of moving the moving seat 6 left and right, the magnetic switch 5 is triggered, and the magnetic switch 5 controls the stepping motor 4 to stop the movement of the moving seat 6.
As shown in fig. 3, a moving seat sliding area 101 and a synchronous belt moving area 103 are formed in the main body 1, and a magnetic switch mounting groove 102 is formed on the outer edge of the main body 1;
the front side of the moving seat sliding area 101 is open, as shown in fig. 4, the rear side of the moving seat sliding area 101 is fixedly provided with a linear guide 27, and the linear guide 27 is fixedly connected with the main body 1 through a coupling nut; two sliding tables 23 are movably arranged on the linear guide rail 27, and the sliding tables 23 are fixedly connected with two ends of the movable seat 6; the movable seat 6 can move left and right along the linear guide rail 27 in the movable seat sliding area 101;
a strong magnet 21 is fixedly arranged at the rear side of the movable seat 6;
the main body 1 is fixedly connected with a module connecting plate 7 through a connecting nut;
the cross section shape of the magnetic switch mounting groove 102 is matched with the cross section shape of the magnetic switch 5, the magnetic switch 5 is arranged in the magnetic switch mounting groove 102, and the magnetic switch 5 can move in the magnetic switch mounting groove 102; after the magnetic switch 5 moves along the magnetic switch mounting groove 102 to correspond to the powerful magnet 21, the magnetic switch 5 is fixedly connected with the main body 1 through a screw;
a synchronous belt 26 is arranged in the synchronous belt movement area 103; the synchronous belt 26 is fixedly connected with the movable seat 6 through the two belt fixing seats 17;
a coupling nut installation groove 104 is opened at the rear side of the moving seat sliding region 101, and the coupling nut 28 shown in fig. 5 is arranged in the coupling nut installation groove 104; the coupling nut 28 can move in the coupling nut installation groove 104, and the coupling nut 28 is locked after the linear guide 27 determines the installation position.
As shown in fig. 6, the movable base 6 is formed with a guide 601; a guide groove 1701 matched with the guide part 601 is formed on the belt fixing seat 17; the belt fixing base 17 is coupled to the movable base 6 by the guide groove 1701 and the guide portion 601.
As shown in fig. 2, in order to solve the problem of the expansion and contraction of the synchronous belt 26 after long-term use, the belt fixing seat 17 is provided with the adjusting screw 18 along the longitudinal direction, and the adjusting screw 18 on the belt fixing seat 17 is rotated by an inner hexagonal wrench, so that the tension of the synchronous belt 26 can be adjusted.
The belt fixing seat 17 and the moving seat 6 are fixedly connected in the following manner: two ends of the movable seat 6 are provided with connecting sleeve mounting holes, and connecting sleeves 19 penetrate through the connecting sleeve mounting holes; the connecting sleeve 19 is provided with a radial threaded hole for penetrating the adjusting screw 18; the connecting sleeve 19 is provided with an axial positioning hole;
the adjusting screw 18 passes through the belt fixing seat 17 along the longitudinal direction and then passes through a radial threaded hole of the connecting sleeve 19; after the synchronous belt 26 is tensioned and adjusted in place, the adjusting screw 18 is finally propped and fixed through the screw 20;
as shown in fig. 7, both ends of the timing belt 26 are folded one by one and then put into the notches of the belt fixing base 17; since the thickness of the folded portion is greater than the thickness of the notch of the belt fixing base 17, the timing belt 26 can be tightly caught to the belt fixing base 17 when it is tensioned.
Because the clearance is difficult to avoid between the driving gear 12 on the stepping motor 4 and the driven gear 11 on the driving belt wheel 10 in the assembling process, in order to better control the reasonable clearance between the driving gear 12 and the driven gear 11, the invention is provided with a gear clearance adjusting mechanism; as shown in fig. 8, an adjusting seat 13 is arranged on the side of the motor mounting plate 16, and the adjusting seat 13 is connected with the motor mounting plate 16 through an adjusting screw 14 and a nut 15;
the gear clearance adjusting method of the gear clearance adjusting mechanism comprises the following steps:
before the gear clearance is not determined, the motor mounting plate 16 and the driving pulley seat 3 are not completely fixed at the moment, the motor mounting plate 16 is pushed through the adjusting screw 14, the gear clearance meets the mounting requirement, the nut 15 is screwed after the clearance is determined, and finally the fixing screw on the motor mounting plate 16 is screwed, so that the motor mounting plate 16 and the driving pulley seat 3 are completely fixed.
The invention enables the gear clearance to reach the optimal state through the fine adjustment of the adjusting screw 14, thereby avoiding the incorrect way of adjusting the clearance by pulling the motor by hands.
Preferably, the main body 1 can be an aluminum section, and has light self weight, stable performance and difficult deformation.