A lace feeding machine

Abstract

The present invention discloses a lace feeding machine, which includes a frame body, a lace storage mechanism for placing lace raw materials, and a lace conveying device for controlling the lace conveyance. A plurality of the lace storage mechanisms are provided on the frame body; wherein, the frame body is provided with a feeding area for arranging the lace storage mechanisms in layers, and the lace storage mechanisms between adjacent layers are arranged staggeredly; the lace conveying device includes a driving roller for actively pulling the lace belt and a tension compensation device for controlling the rotation of the driving roller; the tension compensation device includes a swinging member and an induction switch corresponding to the swinging member, the induction switch controls the rotation of the driving roller, and the lace belt passes through the driving roller and then is sent out after bypassing the bottom of the swinging member. By adopting the present invention, the coil replacement is convenient, and the lace belt can be prevented from being overly tightened during the feeding process.

Description

Technical Field

[0001] The present invention relates to the technical field of textiles, and particularly to a lace feeding machine. Background Art

[0002] In the combined sewing of existing lace fabrics, in order to maintain the conveying synchronism of each lace ribbon as much as possible, generally, multiple lace fabrics are placed on the same unwinding roller and released together. However, since the total length of each roll of lace varies greatly, when it is necessary to replace the lace material roll in the middle position, it is necessary to remove the rolls on both sides of it, thus reducing the production efficiency.

[0003] Moreover, when using multiple independent unwinding rollers for side-by-side feeding, the distance between adjacent two rolls of materials will be increased, which is not convenient for subsequent combined sewing.

[0004] On the other hand, for highly elastic lace fabrics, during the traction movement of the next processing equipment, when the unwinding and feeding speed of the feeding machine is too slow, the stretching deformation amount of the lace fabric will be aggravated, and the stretching deformation amount will fluctuate, thus affecting the subsequent combined sewing and the quality of the product. Summary of the Invention

[0005] The technical problem to be solved by the present invention is to provide a lace feeding machine with convenient roll material replacement and capable of avoiding excessive tension of the lace ribbon during the feeding process.

[0006] To solve the above technical problem, the present invention provides a lace feeding machine, which includes a frame body, a lace storage mechanism for placing lace raw materials, and a lace conveying device for controlling the lace conveying. The frame body is provided with a plurality of the lace storage mechanisms;

[0007] Wherein, the frame body is provided with a feeding area for arranging the lace storage mechanisms in layers, and the lace storage mechanisms between adjacent two layers are arranged staggeredly;

[0008] The lace conveying device includes a driving roller for actively pulling the lace ribbon and a tension compensation device for controlling the rotation of the driving roller;

[0009] The tension compensation device includes a swinging member and an induction switch corresponding to the swinging member. The induction switch controls the rotation of the driving roller, and the lace ribbon passes through the driving roller and then is sent out after bypassing the bottom of the swinging member.

[0010] As an improvement of the above solution, the lace storage mechanism includes a storage cylinder, rotating shafts arranged at both ends of the storage cylinder, and a supporting plate for supporting the rotating shafts. The storage cylinder is placed on the supporting plate through the rotating shafts.

[0011] As an improvement of the above solution, a roller group for supporting the rotating shaft is provided on the top of the supporting plate, and the rotating shaft is supported between the two roller groups.

[0012] As an improvement of the above solution, the main frame body further includes a first lace winding roller corresponding to the lace storage mechanism and a second lace winding roller provided on one side of the driving roller. The lace belt sequentially bypasses the first lace winding roller, the driving roller and the second lace winding roller, so that the lace belt fits on the driving roller.

[0013] As an improvement of the above solution, the main frame body is provided with support columns for installing the first lace winding roller and the second lace winding roller, and the support columns are provided with installation grooves for adjusting the installation heights of the first lace winding roller and the second lace winding roller.

[0014] As an improvement of the above solution, the swinging member includes a swinging shaft installed on the main frame body and a baffle plate connected to the swinging shaft. The induction switch is provided on one side of one end of the baffle plate to sense the swing of the baffle plate.

[0015] As an improvement of the above solution, the main frame body is provided with a supporting rod corresponding to the second lace winding roller, and the swinging member is located below between the supporting rod and the second lace winding roller.

[0016] As an improvement of the above solution, a material trough for restricting the lace belt from falling to the ground is provided at the bottom of the main frame body.

[0017] As an improvement of the above solution, the roller group includes an inner roller, an outer roller and a roller shaft. The inner roller and the outer roller are respectively installed on the inner and outer sides of the supporting plate through the roller shaft;

[0018] The roller group is at least provided with a braking component for hindering the rotation of the outer roller. The braking component includes a handle screw and a compression spring, and the handle screw is installed on the roller shaft through the compression spring.

[0019] As an improvement of the above solution, limiting columns extend upward at the left and right ends of the supporting plate, and a detachable closing rod is provided between the two limiting columns.

[0020] Implementing the present invention has the following beneficial effects:

[0021] The present invention discloses a lace feeding machine, which includes a main frame body, a lace storage mechanism and a lace conveying device for controlling the lace conveying. The main frame body is provided with a plurality of the lace storage mechanisms;

[0022] The main frame body is provided with a feeding area for arranging the lace storage mechanisms in layers, and the lace storage mechanisms between adjacent layers are arranged staggeredly, so as to facilitate the replenishment of the raw materials of the lace storage mechanisms while reducing the distance between the lace discharges.

[0023] Moreover, the lace conveying device includes a driving roller for actively pulling the lace belt and a tension compensation device. The tension compensation device includes a swinging member and an induction switch corresponding to the swinging member. The induction switch controls the rotation of the driving roller, and the lace belt is sent out after passing through the driving roller and then bypassing the bottom of the swinging member.

[0024] Therefore, when the feeding speed of the present invention is too slow, the tension of the lace belt will lift the swinging member, causing the swinging member to swing and change its initial position, thereby triggering the induction switch and driving the driving roller to increase the feeding speed of the lace belt, so as to avoid sending out lace belts with large stretching deformation and stabilize the tension of the lace belt during the sending process, improving the subsequent processing quality. Description of the Drawings

[0025] Figure 1 is a schematic three-dimensional structure diagram of the lace loading machine of the present invention;

[0026] Figure 2 is a schematic structure diagram of the feeding area of the lace loading machine of the present invention;

[0027] Figure 3 is a schematic structure diagram of the frame body of the lace loading machine of the present invention;

[0028] Figure 4 is a schematic structure diagram of the braking assembly and the roller group of the present invention. Detailed Embodiments

[0029] To make the objectives, technical solutions and advantages of the present invention clearer, the present invention will be further described in detail below with reference to the accompanying drawings.

[0030] See Figure 1 、 2 and 3, the present invention provides a lace loading machine, including a frame body 1, a lace storage mechanism 2 for placing lace raw materials, and a lace conveying device for controlling the lace conveying. The frame body is provided with a plurality of the lace storage mechanisms 2;

[0031] Among them, the frame body 1 is provided with a feeding area 9 for arranging the lace storage mechanisms 2 in layers, and the lace storage mechanisms 2 between adjacent layers are arranged staggeredly, so that there is a lace storage mechanism above the space between the two lace storage mechanisms in the lower layer, thereby solving the problem of too large a distance between the lace belts generated between adjacent lace storage mechanisms.

[0032] The lace conveying device includes a driving roller 3 for actively pulling the lace belt and a tension compensation device for controlling the rotation of the driving roller 3;

[0033] The tension compensation device includes a swinging member 4 and an induction switch 5 corresponding to the swinging member. The induction switch 5 controls the rotation of the driving roller. The lace ribbon passes through the driving roller 3 and then is sent out around the bottom of the swinging member 4.

[0034] Specifically, the lace storage mechanism 2 includes a storage cylinder 21, rotating shafts 22 provided at both ends of the storage cylinder 21, and supporting plates 23 for supporting the rotating shafts. The storage cylinder 21 is placed on the supporting plates 23 through the rotating shafts 22.

[0035] See Figure 4 , in order to facilitate the removal of the storage cylinder 21 to replenish the lace ribbon roll for production, roller groups for supporting the rotating shafts 22 are provided at the top of the supporting plates 23, and the rotating shafts 22 are supported between the two roller groups. Thus, the storage cylinder 21 can be directly removed without being affected by other lace storage mechanisms. The roller group includes inner rollers 231, outer rollers 232, and roller shafts 233. The inner rollers 231 and the outer rollers 232 are respectively installed on the inner and outer sides of the supporting plates 23 through the roller shafts 233. Moreover, in order to avoid the safety problem of the roller shafts 233 coming off, limiting columns 234 extend upward at the left and right ends of the supporting plates 23, and a detachable closing rod 235 is provided between the two limiting columns. When replacement is needed, the closing rod 235 can be opened. The closing rod 235 can be magnetically attracted or connected by a single-sided hinge to the limiting columns to close the roller shafts 233 and limit their detachment.

[0036] Since different types of lace have different elastic changes based on their shapes, patterns, and materials, in order to meet the requirements of combined sewing production of different types of lace, especially lace with different elasticities, at least one braking component 6 that hinders the rotation of the outer roller is provided in the roller group. The braking component 6 includes a handle screw 61 and a compression spring 62. The handle screw 61 is installed on the roller shaft 233 through the compression spring 62. Therefore, by screwing the handle screw 61, the friction force between the compression spring 62 and the outer roller 232 can be adjusted to control the feeding speed of the storage cylinder 21, and thus the tension of the lace ribbon during feeding of the storage cylinder 21 can be adjusted. Therefore, the setting of the braking component 6 can achieve the uniformity of the tension of different types of lace ribbons, facilitating the unified adjustment of the tension compensation device.

[0037] Furthermore, the frame main body 1 further includes a first lace winding roller 11 corresponding to the lace storage mechanism 2 and a second lace winding roller 12 provided on one side of the driving roller 3. The lace ribbon sequentially passes around the first lace winding roller 11, the driving roller 3, and the second lace winding roller 12, so that the lace ribbon adheres to the driving roller 3. The number of the first lace winding rollers 11 provided corresponds to the number of layers for arranging the lace storage mechanism 2.

[0038] The rack body 1 is provided with support columns 13 for installing the first ribbon winding roller 11 and the second ribbon winding roller 12, and the support columns 13 are provided with mounting grooves 131 for adjusting the mounting heights of the first ribbon winding roller 11 and the second ribbon winding roller 12. Therefore, the first ribbon winding roller 11 and the second ribbon winding roller 12 can move up and down along the mounting grooves 131, so as to adjust the fitting area between the lace ribbon and the driving roller 3, and change the maximum traction force of the driving roller 3 on the lace ribbon. The driving roller 3 is preferably a rubber-coated roller to increase the friction force between it and the lace ribbon. Moreover, in order to improve the overall synchronism of the lace ribbon when it winds around the first ribbon winding roller 11 and the second ribbon winding roller 12 and reduce the stretching effect on the lace ribbon, a synchronous belt 8 is provided between the first ribbon winding roller 11 and the second ribbon winding roller 12 to maintain the synchronous rotation between the first ribbon winding roller and the second ribbon winding roller. The shaft diameters of the first ribbon winding roller and the second ribbon winding roller are equal.

[0039] In terms of the drive control of the driving roller 3, the rack body 1 is provided with a supporting rod 7 corresponding to the second ribbon winding roller 12, and the swinging member 4 is located below between the supporting rod 7 and the second ribbon winding roller 12. The swinging member 4 includes a swinging shaft 41 installed on the rack body and a baffle 42 connected to the swinging shaft 41, and the induction switch is arranged on one side of one end of the baffle 42 to sense the swing of the baffle 42. It should be noted that the main traction force of the lace ribbon generally comes from the processing equipment connected to it. Therefore, when the driving roller 3 of the present invention does not work, the natural feeding speed of the lace storage mechanism 2 will lag behind the transportation speed of the processing equipment, so that the lace ribbon will generate a large deformation during the feeding process, and finally the lace ribbon processed by the subsequent processing equipment is processed under a large deformation condition, thus affecting the performance of the pattern and shape of the lace ribbon.

[0040] Therefore, when the feeding speed of the present invention is too slow relative to the connected processing equipment, the lace ribbon will be tightened, generating a tendency to lift the swinging member 4, causing the swinging member to swing and change its initial position, thereby triggering the induction switch to control the motor (not marked in the figure) for rotating the driving roller 3, so as to increase the feeding speed of the lace ribbon, and thus control the difference between the feeding speed of the present invention and the transportation speed of the connected equipment to avoid excessive stretching of the lace ribbon. Preferably, the induction switch is a proximity sensor.

[0041] The bottom of the rack body 1 is provided with a material trough 14 for restricting the lace ribbon from falling to the ground. Therefore, when the lace ribbon between the present invention and the connected equipment is disconnected, the lace ribbon falls back onto the material trough 14, thus avoiding the lace ribbon from being polluted by the ground.

[0042] The above are the preferred embodiments of the present invention. It should be noted that for those of ordinary skill in the art, without departing from the principle of the present invention, several improvements and refinements can be made, and these improvements and refinements are also regarded as the protection scope of the present invention.

Claims

1. A lace feeding machine, characterized in that, It includes a frame body, a lace storage mechanism for placing lace raw materials, and a lace conveying device for controlling lace conveyance. The frame body is provided with a plurality of the lace storage mechanisms; Among them, the frame body is provided with a feeding area for arranging the lace storage mechanisms in layers, and the lace storage mechanisms between adjacent layers are arranged staggeredly; The lace conveying device includes a driving roller for actively pulling the lace belt and a tension compensation device for controlling the rotation of the driving roller; The tension compensation device includes a swinging member and an induction switch corresponding to the swinging member. The induction switch controls the rotation of the driving roller, and the lace belt passes through the driving roller and then is sent out after bypassing the bottom of the swinging member; The lace storage mechanism includes a storage cylinder, rotating shafts arranged at both ends of the storage cylinder, and supporting plates for supporting the rotating shafts. The storage cylinder is placed on the supporting plates through the rotating shafts; At the top of the supporting plate, there is a roller group for supporting the rotating shaft, and the rotating shaft is supported between the two roller groups; The roller group includes an inner roller, an outer roller, and a roller shaft. The inner roller and the outer roller are respectively installed on the inner and outer sides of the supporting plate through the roller shaft; The roller group is at least provided with a braking component for hindering the rotation of the outer roller. The braking component includes a handle screw and a compression spring, and the handle screw is installed on the roller shaft through the compression spring; The frame body further includes a first lace winding roller corresponding to the lace storage mechanism and a second lace winding roller arranged on one side of the driving roller. The lace belt sequentially bypasses the first lace winding roller, the driving roller, and the second lace winding roller, so that the lace belt fits on the driving roller; The frame body is provided with support columns for installing the first lace winding roller and the second lace winding roller, and the support columns are provided with installation grooves for adjusting the installation heights of the first lace winding roller and the second lace winding roller; The number of the first lace winding rollers (11) is corresponding to the number of layers for arranging the lace storage mechanisms (2); A synchronous belt (8) is arranged between the first lace winding roller (11) and the second lace winding roller (12) to keep the synchronous rotation between the first lace winding roller and the second lace winding roller.

2. The lace feeding machine according to claim 1, characterized in that, The swinging member includes a swinging shaft installed on the frame body and a baffle plate connected to the swinging shaft. The induction switch is arranged on one side of one end of the baffle plate to sense the swing of the baffle plate; 3. The lace feeding machine according to claim 1, characterized in that, The frame body is provided with a supporting rod corresponding to the second lace winding roller, and the swinging member is located below between the supporting rod and the second lace winding roller; 4. The lace feeding machine according to claim 1, characterized in that, At the bottom of the frame body, there is a material trough for restricting the lace belt from falling to the ground; 5. The lace feeding machine according to claim 1, characterized in that, At the left and right ends of the supporting plate, there are limiting columns extending upward, and a detachable closing rod is arranged between the two limiting columns.

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