CN113737399B - Die changing device for pattern machine and pattern machine - Google Patents

Abstract

The present invention relates to a mold changing device for a pattern machine and a pattern machine. In the mold changing device for the pattern machine, a workbench has a mold changing station, and the mold changing station has a transfer station and at least one processing station in the circumferential direction. A sewing device is correspondingly arranged on each processing station. A material taking mechanism of the mold changing device realizes a grabbing action of a processed sewing template from the processing station to the mold changing station, and a feeding mechanism realizes a feeding action of transferring a new sewing template on the mold changing station from the mold changing station to the processing station again, and the transfer mechanism is used to realize an update of the sewing template at the mold changing station itself. In the entire mold changing process, no manual participation is required, and the material taking and feeding actions are continuous and rapid, which is very suitable for fast-paced assembly line processing.

Description

A mold changing device for pattern machine and pattern machine

Technical Field

The invention relates to the field of sewing devices, and in particular to a die changing device for a pattern machine and the pattern machine.

Background Art

In order to cope with the increasingly diverse sewing needs, pattern machines usually adopt the method of changing molds to match molds of different sizes and styles. In this way, when the production target changes, there is no need to make major changes to the pattern machine. It can be quickly put into use with only a small amount of replacement based on the existing structure. Such changes can greatly reduce the company's investment in equipment and are very practical.

However, in some special scenarios, some raw materials require complex production processes. Different molds are needed to complete a sewing process. This requires the pattern machine to have the ability to change molds in real time and quickly to ensure that the entire sewing process is not interrupted. To this end, the Chinese invention application with patent number CN201910660199.3 discloses a "Mold Changing Device for Pattern Machine". The mold changing device of the pattern machine can fold the flip table downward by setting a flip table, thereby realizing mold change, and two mold changing devices are installed in parallel during the production process to ensure that the machine will not stop running when changing molds.

Although the above-mentioned pattern machines can meet the needs of mold changing to a certain extent, on the one hand, the mold changing in the form of flipping is slow, and has high requirements for the fixation and locking of the mold, which cannot meet the needs of fast-paced production. On the other hand, the two mold changing devices are only used side by side, and there is no connection in the process or procedure. The actual mold changing still requires real-time manual participation in the operation, which cannot be fully automated and is still very inconvenient.

Summary of the invention

The first technical problem to be solved by the present invention is to provide a mold changing device for a pattern machine which can automatically and quickly change molds in view of the current status of the prior art.

The second technical problem to be solved by the present invention is to provide a pattern machine with the above-mentioned mold changing device in view of the current status of the prior art.

The technical solution adopted by the present invention to solve the above-mentioned first technical problem is: a mold changing device for a pattern machine, comprising:

A frame having a workbench, wherein the workbench has a mold changing station, and the mold changing station has a transfer station and at least one processing station in the circumferential direction;

A sewing device is provided on the workbench and arranged at the processing position;

The mold changing station is provided with a mold changing assembly, and the mold changing assembly comprises:

A material taking mechanism, used to grab the template on the die changing station to the processing station, arranged above the workbench, and having a first clamping claw at the power output end that can move back and forth between the die changing station and the processing station;

A feeding mechanism, used to grab the template on the processing station to the mold changing station, arranged below the workbench, and having a second clamping claw at the power output end that can move back and forth between the processing station and the mold changing station, and

The transfer mechanism is arranged at the transfer station, and the power output end is provided with a third clamping jaw which moves back and forth between the transfer station and the mold changing station.

The processing station and the mold changing station can have a variety of layout forms. Preferably, there are two processing stations, which are relatively arranged on two sides of the mold changing station. The mold changing station is connected with the processing stations on both sides of it to form a mold changing channel, and each processing station is correspondingly provided with a sewing device. The transfer station is arranged on one of the other two sides of the mold changing station. The design of arranging the processing stations on both sides of the mold changing station can make the mold changing and processing stations arranged in sequence on a conveying path. In this way, the mold changing action does not need to undergo complex actions such as flipping and rotating, but only needs to be translated on the conveying path, which is very convenient.

Removing the mold after use is completed by a material taking mechanism. Preferably, the material taking mechanism has a first guide rail, and the feeding mechanism has a second guide rail. The first guide rail and the second guide rail are arranged on the same side of the mold changing channel and extend in the same direction as the mold changing channel. The first clamp is slidably constrained on the first guide rail, and the second clamp is slidably constrained on the second guide rail, and the first clamp at least partially extends into the mold changing channel. The processing position is usually provided with a complex sewing structure, including cutting, needles, whole materials and other components. Due to the large volume of the sewing template, these components may interfere with the mold changing action during sewing. In order to avoid such a situation, the first clamp is arranged to extend into the above-mentioned mold changing channel in conjunction with the position of the first guide rail while taking into account the clamping function. In this way, the power source and transmission part of the first clamp can avoid the mold changing channel, and only the output end contacts the sewing template, thereby contributing to the smoothness of the mold changing to the greatest extent.

Preferably, the first guide rail is arranged above the workbench, and the second guide rail is arranged below the workbench, and the first guide rail and the second guide rail are both arranged across the mold changing station along the extension direction of the mold changing channel, and the vertical projections of both ends of the first guide rail and both ends of the second guide rail on the plane where the workbench is located fall into the processing position on the corresponding side of the mold changing station. Since the fixed positions of the first clamp and the second clamp are the edges of the sewing template, the vertical projections of both ends of the first guide rail and the second guide rail on the plane where the workbench is located fall into the processing position on the corresponding side of the mold changing station. During transportation, even if each clamp is moved to the end of the corresponding guide rail, it is only just located at the edge of the processing position, and the template transported to the position can be located entirely on the processing position. In this way, not only can it be ensured that the template is transported to the position, but also the processing position will not be affected.

There are many ways to achieve template clamping. Preferably, the first clamp includes a base and a first driving mechanism arranged on the base. The extension direction of the base intersects with the extension direction of the first guide rail. The base is also provided with a pressure block for clamping the edge of the sewing template.

In order to ensure that the entire template is stable when the edge of the clamping template is clamped, and to avoid unstable clamping of the template or bending of the end away from the clamping due to local force, the bottom of the two ends of the base has a bottom plate extending laterally and can abut against the groove of the outer edge of the sewing template, and the top of the two ends of the base has a support plate extending laterally, and the top of each support plate is provided with a first driving mechanism, and the pressure block is arranged between the support plate and the bottom plate, and the pressure block is connected to the output end of the first driving mechanism, and can move up and down relative to the bottom plate under the drive of the first driving mechanism, and a gap is formed between the pressure block and the bottom plate for accommodating the corresponding edge of the sewing template. The coordinated design of the support plate, the bottom plate and the pressure block enables one side edge of the entire template to be fully stressed, and even if the two sides of the template are not clamped, it will not cause bending away from the clamping end.

In order to ensure that the entire first clamp is firmly installed, preferably, the first clamp is installed on the first guide rail through a first bracket, and a second driving mechanism is provided on the first guide rail, and the power output end of the second driving mechanism is driven and connected to the first bracket, thereby driving the first bracket and the first clamp to slide synchronously along the extension direction of the first guide rail.

In order to ensure that the template can move up and down relative to the workbench before and after clamping, and thereby avoid interference with the sliding membrane movement by other components, preferably, a first cylinder is also provided on the first bracket, and the power output end of the first cylinder is connected to the base and can drive the first clamp to move up and down relative to the first bracket.

In order to ensure that the new template is transported to the workbench, preferably, the transfer mechanism has a third guide rail, the extension direction of the third guide rail intersects with the extension direction of the second guide rail, and the second jaw is slidably constrained on the second guide rail, and the third jaw is slidably constrained on the third guide rail; the second jaw and the third jaw both include a slider and a second claw head arranged on the slider, the second claw head includes a second cylinder and a positioning end head for positioning the sewing template, and when the second jaw and the third jaw are in a state of clamping the sewing template, the limiting teeth on the positioning end head are hooked on the hole position corresponding to the side of the sewing template.

In order to further solve the above-mentioned second technical problem, the technical solution adopted by the present invention is: a pattern machine with the above-mentioned mold changing device, a sewing device is also arranged on the workbench, and each of the processing positions is provided with a sewing device, the sewing device includes a machine base and a machine head, the base has two, which are arranged adjacent to the corresponding processing positions respectively, the machine head is arranged on the base and has a needle for sewing, and the machine head at least partially extends into the processing position, and a gap is left between the machine head and the workbench for inserting the sewing template.

Compared with the prior art, the advantages of the present invention are as follows: in the mold changing device for the pattern machine, a mold changing device is arranged on the mold changing station of the workbench, and a material taking mechanism of the mold changing device is used to realize a grabbing action of the processed sewing template from the processing position to the mold changing station, and a material feeding mechanism is used to realize a feeding action of transferring the new sewing template on the mold changing station from the mold changing station to the processing position again, and an updating of the sewing template at the mold changing station itself is realized with the aid of a transfer mechanism, and in the entire mold changing process, no manual participation is required, and the material taking and feeding actions are continuous and rapid, which is very suitable for fast-paced assembly line processing.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG1 is a schematic diagram of the overall structure of a pattern machine according to an embodiment of the present invention;

FIG2 is an overall schematic diagram of FIG1 from another angle;

3 is a schematic diagram of the positions of a material taking mechanism, a material feeding mechanism and a transfer mechanism in an embodiment of the present invention;

FIG4 is a schematic diagram of FIG3 from another angle;

FIG5 is an overall schematic diagram of the first clamping jaw;

FIG6 is an enlarged schematic diagram of point A in FIG5 ;

FIG7 is a schematic diagram showing the positions of the material taking mechanism and the mold changing channel after omitting some structures such as the workbench;

FIG. 8 is an overall schematic diagram of a sewing template in an embodiment of the present invention.

DETAILED DESCRIPTION

The present invention is further described in detail below with reference to the accompanying drawings.

As shown in Figures 1 to 8, it is a preferred embodiment of the present invention. In this embodiment, the mold changing device for the pattern machine includes a frame 1, a sewing device 3 and a mold changing assembly. The frame 1 has a workbench 2. The workbench 2 in this embodiment has a mold changing station 2a. The mold changing station 2a has a transfer station 2c and at least one processing station 2b in the circumferential direction. The processing station 2b and the mold changing station 2a can have different layout forms. In this embodiment, there are two processing stations 2b, which are arranged relatively on two sides of the mold changing station 2a. The mold changing station 2a is connected with the processing stations 2b on both sides thereof to form a mold changing channel 20, and each processing station 2b is correspondingly provided with a sewing device 3, and the transfer station 2c is arranged on one of the other two sides of the mold changing station 2a. The design of arranging the processing station 2b on both sides of the mold changing station 2a can arrange the mold changing and processing stations in sequence on a conveying path. In this way, the mold changing action does not require complex actions such as flipping and rotating, but only requires horizontal movement on the conveying path, which is very convenient.

The mold changing device mentioned in this embodiment is suitable for a pattern machine. In addition to the above-mentioned components, the sewing device 3 is arranged on the workbench 2 and arranged at the processing position 2b. The sewing device 3 specifically includes a machine base 31 and a machine head 32. There are two bases 401, which are arranged adjacent to the corresponding processing positions 2b respectively. The machine head 32 is arranged on the base 401 and has a needle for sewing. Moreover, the machine head 32 at least partially extends into the processing position 2b, and a gap is left between the machine head 32 and the workbench 2 for inserting the sewing template 100.

In this embodiment, the die-changing action of the sewing template 100 is realized by the die-changing assembly arranged on the die-changing station 2a. The die-changing assembly includes a material-taking mechanism 4, a feeding mechanism 5 and a transfer mechanism 6. The material-taking mechanism 4 is used to grab the template on the die-changing station 2a to the processing station 2b, arranged above the workbench 2, and the power output end has a first clamping jaw 40 that can move back and forth between the die-changing station 2a and the processing station 2b, and the feeding mechanism 5 is used to grab the template on the processing station 2b to the die-changing station 2a, arranged below the workbench 2, and the power output end has a second clamping jaw 50 that can move back and forth between the processing station 2b and the die-changing station 2a, and the transfer mechanism 6 is arranged at the transfer station 2c, and the power output end has a third clamping jaw 60 that moves back and forth between the transfer station 2c and the die-changing station 2a.

Specifically, the material picking mechanism 4 has a first guide rail 41, and the material feeding mechanism 5 has a second guide rail 51. The first guide rail 41 and the second guide rail 51 are arranged on the same side of the mold changing channel 20 and extend in the same direction as the mold changing channel 20. The first clamp 40 is slidably constrained on the first guide rail 41, and the second clamp 50 is slidably constrained on the second guide rail 51, and the first clamp 40 at least partially extends into the mold changing channel 20. The processing position 2b is usually provided with a complex sewing structure, including cutting, needles, whole materials and other components. Since the sewing template 100 is usually large in size, these components may interfere with the mold changing action during sewing. In order to avoid such a situation, the first clamp is arranged to extend into the above-mentioned mold changing channel on the basis of taking into account the clamping function and in conjunction with the position of the first guide rail. In this way, the power source and transmission part of the first clamp can avoid the mold changing channel, and only the output end is in contact with the sewing template, thereby contributing to the smoothness of the mold changing to the greatest extent.

In addition, the first guide rail 41 is arranged above the workbench 2, while the second guide rail 51 is arranged below the workbench 2, and the first guide rail 41 and the second guide rail 51 are arranged across the mold changing station 2a, and the vertical projections of the two ends of the first guide rail 41 and the two ends of the second guide rail 51 on the plane where the workbench 2 is located fall into the processing position 2b on the corresponding side of the mold changing station 2a. Since the fixed positions of the first clamp 40 and the second clamp 50 are both the edges of the sewing template 100, the vertical projections of the two ends of the first guide rail and the two ends of the second guide rail on the plane where the workbench is located fall into the processing position on the corresponding side of the mold changing station. During transportation, even if each clamp moves to the end of the corresponding guide rail, it is only just located at the edge of the processing position, and the template transported to the position can be located entirely on the processing position. In this way, it can not only ensure that the template is transported to the position, but also not affect the processing position.

To ensure stable clamping, the first clamping jaw 40 includes a base 401 and a first driving mechanism 402 disposed on the base 401 . The extension direction of the base 401 intersects with the extension direction of the first guide rail 41 . The base 401 is also provided with a pressing block 405 for clamping the edge of the sewing template 100 . Specifically, at the bottom of both ends of the base 401, there is a bottom plate 404 extending laterally and capable of abutting against the groove 101 on the outer edge of the sewing template 100, and at the top of both ends of the base 401, there is a support plate 403 extending laterally, and a first driving mechanism 402 is provided on the top of each support plate 403, and a pressing block 405 is arranged between the support plate 403 and the bottom plate 404, and the pressing block 405 is connected to the output end of the first driving mechanism 402, and can move up and down relative to the bottom plate 404 under the drive of the first driving mechanism 402, and a gap 406 is formed between the pressing block 405 and the bottom plate 404 for accommodating the corresponding edge of the sewing template 100.

Since the installation of the first clamping jaw 40 itself and the clamping of the sewing template 100 are similar to the model of a laborious lever, in order to ensure a firm installation, the first clamping jaw 40 is installed on the first guide rail 41 through the first bracket 407, and the first guide rail 41 is provided with a second driving mechanism 408, the power output end of the second driving mechanism 408 is drivingly connected with the first bracket 407, and then drives the first bracket 407 and the first clamping jaw 40 to slide synchronously along the extension direction of the first guide rail 41. In addition, the first bracket 407 is also provided with a first cylinder 409, the power output end of the first cylinder 409 is connected with the base 401, and can drive the first clamping jaw 40 to move up and down relative to the first bracket 407.

In order to ensure the updating of the template, after removing the used sewing template, a new template must be transported to the processing station 2b. The transportation at this time is divided into two stages. The first stage is to transport it to the transfer station 2c, and then the third clamp 60 of the transfer mechanism 6 transports it to the mold changing station 2a. The second stage is that the second clamp 50 of the feeding mechanism 5 picks up the sewing template on the mold changing station 2a, and then transports it to the corresponding processing station 2b. The transfer mechanism 6 in this embodiment has a third guide rail 61, the extension direction of the third guide rail 61 intersects with the extension direction of the second guide rail 51, and the second clamping jaw 50 is slidably constrained on the second guide rail 51, and the third clamping jaw 60 is slidably constrained on the third guide rail 61; the second clamping jaw 50 and the third clamping jaw 60 both include a slider 701 and a second claw head 702 arranged on the slider 701, the second claw head 702 includes a second cylinder 703 and a positioning end 704 for positioning the sewing template 100, when the second clamping jaw 50 and the third clamping jaw 60 are in a state of clamping the sewing template 100, the limiting teeth 706 on the positioning end 704 are hooked on the hole position on the corresponding side of the sewing template 100.

In addition, terms indicating directions, such as "front", "rear", "up", "down", "left", "right", "side", "top", "bottom", etc., are used in the specification and claims of the present invention to describe various exemplary structural parts and elements of the present invention, but these terms are used here only for the purpose of convenience of description and are determined based on the exemplary orientations shown in the accompanying drawings. Since the embodiments disclosed in the present invention can be arranged in different directions, these terms indicating directions are only used as explanations and should not be regarded as limitations. For example, "up" and "down" are not necessarily limited to directions opposite to or consistent with the direction of gravity.

Claims (3)

1. A mold changing device for a pattern machine, comprising:

A frame (1) having a work table (2), the work table (2) having a mold changing station (2 a), the mold changing station (2 a) having a transfer station (2 c) and at least one processing station (2 b) in the circumferential direction;

the die changing device is characterized in that a die changing assembly is arranged on the die changing station (2 a), and the die changing assembly comprises:

The material taking mechanism (4) is used for grabbing the template on the die changing station (2 a) onto the processing position (2 b), is arranged above the workbench (2), and the power output end is provided with a first clamping jaw (40) capable of moving back and forth between the die changing station (2 a) and the processing position (2 b);

A feeding mechanism (5) for grabbing the template on the processing station (2 b) onto the mold changing station (2 a), arranged below the workbench (2), and a power output end provided with a second clamping jaw (50) capable of moving back and forth between the processing station (2 b) and the mold changing station (2 a), and

The transfer mechanism (6) is arranged at the transfer station (2 c), and the power output end is provided with a third clamping jaw (60) which moves back and forth between the transfer station (2 c) and the die change station (2 a);

The two machining positions (2 b) are oppositely arranged at two sides of the die changing station (2 a), the die changing station (2 a) is connected with the machining positions (2 b) at two sides of the die changing station to form a die changing channel (20), and the transfer station (2 c) is arranged at one of the other two sides of the die changing station (2 a); the material taking mechanism (4) is provided with a first guide rail (41), the material feeding mechanism (5) is provided with a second guide rail (51), the first guide rail (41) and the second guide rail (51) are arranged on the same side of the die changing channel (20) and extend in the same direction with the die changing channel (20), the first clamping jaw (40) is slidingly restrained on the first guide rail (41), the second clamping jaw (50) is slidingly restrained on the second guide rail (51), and the first clamping jaw (40) at least partially stretches into the die changing channel (20); The first guide rail (41) is arranged above the workbench (2), the second guide rail (51) is arranged below the workbench (2), the first guide rail (41) and the second guide rail (51) are both arranged across the die changing station (2 a), and the vertical projections of the two ends of the first guide rail (41) and the two ends of the second guide rail (51) on the plane of the workbench (2) fall into the processing position (2 b) on the corresponding side of the die changing station (2 a); the first clamping jaw (40) comprises a base (401) and a first driving mechanism (402) arranged on the base (401), the extending direction of the base (401) is intersected with the extending direction of the first guide rail (41), and a pressing block (405) used for clamping the edge of the sewing template (100) is further arranged on the base (401); The bottoms of the two ends of the base (401) are provided with bottom plates (404) which extend laterally and can be abutted against the grooves (101) on the outer side edges of the sewing template (100), the tops of the two ends of the base (401) are provided with support plates (403) which extend laterally, the tops of each support plate (403) are provided with a first driving mechanism (402), a pressing block (405) is arranged between the support plates (403) and the bottom plates (404), the pressing block (405) is connected to the output end of the first driving mechanism (402) and can move up and down relative to the bottom plates (404) under the driving of the first driving mechanism (402), A gap (406) for accommodating the corresponding edge of the sewing template (100) is formed between the pressing block (405) and the bottom plate (404); The transfer mechanism (6) is provided with a third guide rail (61), the extending direction of the third guide rail (61) is intersected with the extending direction of the second guide rail (51), the second clamping jaw (50) is slidingly restrained on the second guide rail (51), and the third clamping jaw (60) is slidingly restrained on the third guide rail (61); the second clamping jaw (50) and the third clamping jaw (60) comprise a sliding block (701) and a second jaw head (702) arranged on the sliding block (701), the second jaw head (702) comprises a second air cylinder (703) and a positioning end head (704) for positioning the sewing template (100), and limiting teeth (706) on the positioning end head (704) are hooked on hole sites on the corresponding side edges of the sewing template (100) when the second clamping jaw (50) and the third clamping jaw (60) are in a state of clamping the sewing template (100).

2. The die changing device according to claim 1, wherein: the first clamping jaw (40) is mounted on the first guide rail (41) through a first support (407), a second driving mechanism (408) is arranged on the first guide rail (41), and the power output end of the second driving mechanism (408) is in driving connection with the first support (407), so that the first support (407) and the first clamping jaw (40) are driven to synchronously slide along the extending direction of the first guide rail (41).

3. A pattern machine having a die changing apparatus as claimed in claim 1 or 2, characterized in that: the sewing machine is characterized in that the workbench (2) is further provided with sewing devices (3), each processing position (2 b) is provided with one sewing device (3), each sewing device (3) comprises a machine base (31) and a machine head (32), the two bases (401) are respectively arranged adjacent to the corresponding processing positions (2 b), the machine heads (32) are arranged on the bases (401) and are provided with needle heads for sewing, the machine heads (32) at least partially extend into the processing positions (2 b), and an interval for inserting a sewing template (100) is reserved between each machine head (32) and the workbench (2).