Hot thread cutting structure of electronic pattern sewing machine

Abstract

A hot thread cutting structure of an electronic pattern sewing machine belongs to the technical field of electronic pattern sewing machines. Comprising a bottom plate and a connecting frame, the connecting frame is fixedly connected to the right ends of the upper side and the lower side of the bottom plate, and cutting mechanisms are arranged at the right end of the upper side of the bottom plate and the right end of the connecting frame. The thread cutting device has the advantages that when thread cutting is needed, the second electromagnet and the third electromagnet are electrified firstly, so that the second electromagnet and the third electromagnet attract each other and get close to each other until contact, meanwhile, a sewing thread is clamped between the second electromagnet and the third electromagnet, and then the electric heater is started to heat the hot thread cutting blade; then a first electromagnet is electrified to generate magnetism, so that the first electromagnet moves towards a fixed block and drives an electric heater and a hot thread cutting blade to move rightwards at the same time to cut off the sewing thread at the right end, and when the hot thread cutting blade cuts off the sewing thread, the sewing thread at the joint of the lower end and the sealed product cannot be pulled; and the sewing product is prevented from being torn apart in the thread cutting process.

Description

TECHNICAL FIELD

[0001] The utility model relates to electronic flower pattern sewing machine technical field, concretely is a kind of electronic flower pattern sewing machine hot thread cutting structure. BACKGROUND

[0002] Electronic flower pattern sewing machine is also called computer flower pattern machine, it is the mechanical equipment used in contemporary handbag factory, shoe factory, bag factory, clothing factory, leather goods factory, furniture factory, it can make traditional handwork flower pattern to be realized at high speed, high efficiency, and also can realize the requirement of "multilevel, multifunction, unity and perfection" that handwork flower pattern cannot reach.It is a kind of electromechanical product that reflects multiple high-techs.

[0003] Electronic flower pattern sewing machine usually uses automatic thread cutting device to cut off sewing thread, but the traditional automatic thread cutting device mainly relies on the cutting action of blade to cut off sewing thread, under the pulling of hooking device, sewing thread is cut off by the sharp edge of blade, but with the increase of using time of blade, blade will gradually become passivated under the influence of environment, it is difficult to cut off sewing thread at one time, especially for some special material or thicker sewing thread, even sharp blade is also difficult to cut off this kind of sewing thread at one time, which seriously affects work efficiency, and even breaks the continuity of production.

[0004] As disclosed in a kind of sewing machine hot thread cutting device of Chinese patent CN202466150U, start electric heater, make hot thread cutting blade reach working temperature, then start electromagnet controller, make electromagnet be electrified to generate magnetic force, attract end under the action of magnetic force drive slide rail along slide to electromagnet, the hooking of slide end can hook the sewing thread that passes through the sewing needle installed on mounting seat to hot thread cutting blade, sewing thread can be cut off by the blade edge of high-temperature hot thread cutting blade.

[0005] But when the thread cutting device cuts thread, sewing thread is pulled, and the bottom end of the sewing thread is connected to the article being sewn, so that when the sewing thread is pulled, the article being sewn may be pulled together, which may cause the article being sewn to be torn. UTILITY MODEL CONTENTS

[0006] The utility model aims at providing a kind of electronic flower pattern sewing machine hot thread cutting structure for avoiding that sewing thread is pulled, which helps to cut off sewing thread without affecting the article being sewn.

[0007] The utility model discloses a purpose is reached like this, a kind of electronic flower pattern sewing machine hot cutting structure, comprising: bottom plate and connecting frame, the connecting frame is fixedly connected on the right end of bottom plate upper and lower two sides, the right end of the upper side of bottom plate and the right end of connecting frame are provided with cutting mechanism, the cutting mechanism includes cutting unit and clamping unit, the cutting unit is set to the upper right end of bottom plate, the clamping unit is set to the right end of connecting frame.

[0008] The clamping unit includes the fixed rod fixedly connected to the front and back of the right side of connecting frame away from the one end of bottom plate, the right end of the two fixed rods of the right side of connecting frame is fixedly connected with the left and right ends of the side plate of adjacent side, the adjacent side of the two side plates outside the fixed rod is fixedly connected with the limiting rod, the middle position between the two side plates outside the fixed rod is fixedly connected with the middle plate, the left and right sides of the middle plate are fixedly connected with the second spring, the one end of the second spring away from the middle plate is fixedly connected with L-shaped rod, the one end of the L-shaped rod away from the fixed rod of the left of the middle plate is equipped with the second electromagnet, the one end of the L-shaped rod away from the fixed rod of the right of the middle plate is equipped with the third electromagnet.

[0009] In a specific embodiment of the utility model, the cutting unit includes the fixed block fixedly connected to the right of the upper side of bottom plate, the left end of the fixed block is fixedly connected with the first spring, the left end of the first spring is fixedly connected with the first electromagnet, the right end of the first electromagnet is fixedly connected with electric heater, the right end of the electric heater is fixedly connected with hot cutting blade.

[0010] In another specific embodiment of the utility model, the number of fixed blocks is two, and the fixed blocks are symmetrically fixedly connected to the right of the upper side of bottom plate, the lower side of the first electromagnet, electric heater and hot cutting blade is slidably connected with the upper side of bottom plate, the front and back of electric heater is slidably connected with the side adjacent to the two fixed blocks.

[0011] In still another specific embodiment of the utility model, the fixed block is iron block.

[0012] In further another specific embodiment of the utility model, the inside of the middle plate is provided with round hole, the one end close to the fixed rod of the inside of L-shaped rod is provided with limiting hole, the inside of the two side plates is passed through the inside of round hole, the outside of the limiting rod is slidably connected with the inside of limiting hole, the side away from the second electromagnet or third electromagnet of L-shaped rod is slidably connected with the outside of fixed rod.

[0013] In still further another specific embodiment of the utility model, the right end of the second electromagnet and the left end of the third electromagnet are mutually adsorbed, and sewing thread passes between the second electromagnet and the third electromagnet.

[0014] In a more specific embodiment of the utility model, the lower right end of the bottom plate is provided with a line pushing mechanism, the line pushing mechanism comprises a cylinder mounted on the lower right front end of the bottom plate, the rear end of the output shaft of the cylinder is fixedly connected with a line pushing plate, a pushing groove is formed in the inner upper left side of the line pushing plate, and the right outer side of the hot cutting thread blade is slidably connected with the inner side of the pushing groove.

[0015] After the technical scheme is adopted, the utility model has the following beneficial effects compared with the prior art: first, when cutting the thread is needed, the second electromagnet and the third electromagnet are electrified, so that the second electromagnet and the third electromagnet attract each other, thereby approaching each other until contacting, and at the same time, the sewing thread is clamped between the second electromagnet and the third electromagnet, so that the part of the sewing thread between the upper and lower fixing rods is in a taut state, and when the left end hot cutting thread blade cuts the sewing thread, the sewing thread at the connection between the lower end and the sealing product is not pulled, thereby avoiding damaging the sealing product during the cutting process; second, when the output shaft of the cylinder is extended to make the line pushing plate move backward, the line pushing plate can slide along the right outer side of the hot cutting thread blade, the sewing thread attached to the outer end of the hot cutting thread blade is pushed down, and when the hot cutting thread blade cuts the sewing thread, the melting part of the sewing thread at the cutting position is adhered to the surface of the hot cutting thread blade. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 It is the body structure top view of an embodiment of the utility model;

[0017] Figure 2 It is the body structure bottom view of an embodiment of the utility model;

[0018] Figure 3 It is the structure schematic view of the cutting unit of an embodiment of the utility model;

[0019] Figure 4 It is the structure schematic view of the clamping unit of an embodiment of the utility model.

[0020] In the drawing: 1, bottom plate; 2, connecting frame; 301, fixed block; 302, first spring; 303, first electromagnet; 304, electric heater; 305, hot cutting thread blade; 401, fixed rod; 402, side plate; 403, limiting rod; 404, middle plate; 405, second spring; 406, L-shaped rod; 407, second electromagnet; 408, third electromagnet; 501, cylinder; 502, line pushing plate. DETAILED DESCRIPTION

[0021] The following will be described in detail in the form of examples, but the description of the examples is not a limitation on the scheme of the utility model, and any equivalent transformation made only in form but not in substance according to the concept of the utility model should be regarded as the technical scheme scope of the utility model.

[0022] In the following description, the directional or positional concepts such as up, down, left, right, front and back are based on the positions shown in the drawings, and therefore cannot be understood as special limitations on the technical scheme provided by the utility model.

[0023] Please refer to Figure 1 and combine Figure 2 , Figure 3 and Figure 4 , a hot cutting line structure of an electronic pattern sewing machine is shown, which comprises a bottom plate 1 and a connecting frame 2, the connecting frame 2 is fixedly connected to the right end of the upper and lower two sides of the bottom plate 1, the upper right end of the bottom plate 1 and the right end of the connecting frame 2 are provided with a cutting mechanism, the cutting mechanism comprises a cutting unit and a clamping unit, the cutting unit is arranged at the upper right end of the bottom plate 1, and the clamping unit is arranged at the right end of the connecting frame 2.

[0024] The clamping unit comprises a fixed rod 401 fixedly connected to the front and back of the end of the right side of the connecting frame 2 away from the bottom plate 1, the left and right ends of one side adjacent to the two fixed rods 401 on the right side of the connecting frame 2 are fixedly connected with side plates 402, the two side plates 402 on the outer side of the fixed rod 401 are fixedly connected with a limiting rod 403 on one side adjacent to each other, an intermediate plate 404 is fixedly connected to the middle position between the two side plates 402 on the outer side of the fixed rod 401, second springs 405 are fixedly connected to the left and right sides of the intermediate plate 404, L-shaped rods 406 are fixedly connected to one end of the second springs 405 away from the intermediate plate 404, second electromagnets 407 are installed on one end of the L-shaped rods 406 away from the fixed rod 401 on the left side of the intermediate plate 404, third electromagnets 408 are installed on one end of the L-shaped rods 406 away from the fixed rod 401 on the right side of the intermediate plate 404, a circular hole is formed in the inside of the intermediate plate 404, a limiting hole is formed in one end of the L-shaped rod 406 close to the fixed rod 401, the limiting rod 403 passes through the inside of the circular hole, the outside of the limiting rod 403 is in sliding connection with the inside of the limiting hole, one side of the L-shaped rod 406 away from the second electromagnet 407 or the third electromagnet 408 is in sliding connection with the outside of the fixed rod 401, the right end of the second electromagnet 407 and the left end of the third electromagnet 408 are mutually adsorbed, and the sewing line passes between the second electromagnet 407 and the third electromagnet 408.

[0025] When the second spring 405 is elastically driven to move the L-shaped rod 406, the L-shaped rod 406 will slide along the outside of the limiting rod 403, and simultaneously drive the second electromagnet 407 and the third electromagnet 408 to move horizontally. When the tangent line needs to be cut, the second electromagnet 407 and the third electromagnet 408 are energized, so that the second electromagnet 407 and the third electromagnet 408 are attracted to each other, thereby moving close to each other until they contact each other, and at the same time, the sewing thread is clamped between the second electromagnet 407 and the third electromagnet 408, so that the part of the sewing thread between the upper and lower fixed rods 401 is in a tight state, so that when the left hot tangent cutter 305 cuts it, the sewing thread at the connection between the lower end and the sealing product will not be pulled, thereby avoiding the sewing product from being damaged during the cutting process.

[0026] Please continue to see Figure 1 and Figure 3 The cutting unit comprises a fixed block 301 fixedly connected to the upper right side of the bottom plate 1, a first spring 302 fixedly connected to the left end of the fixed block 301, a first electromagnet 303 fixedly connected to the left end of the first spring 302, an electric heater 304 fixedly connected to the right end of the first electromagnet 303, a hot tangent cutter 305 fixedly connected to the right end of the electric heater 304, and two fixed blocks 301 symmetrically fixedly connected to the upper right side of the bottom plate 1. The lower side of the first electromagnet 303, the electric heater 304 and the hot tangent cutter 305 is slidably connected to the upper side of the bottom plate 1, the front and rear sides of the electric heater 304 are slidably connected to the side adjacent to the two fixed blocks 301, and the fixed block 301 is an iron block.

[0027] In this embodiment, when the first spring 302 is elastically driven to move the first electromagnet 303, the electric heater 304 at the right end can only slide between the two fixed blocks 301, so that the hot tangent cutter 305 at the right end also moves horizontally stably. After the first electromagnet 303 is energized to generate magnetism, the first electromagnet 303 moves towards the fixed block 301, simultaneously driving the electric heater 304 and the hot tangent cutter 305 to move rightwards, so as to cut the sewing thread at the right end.

[0028] Please continue to see Figure 1 and Figure 2 The lower right end of the bottom plate 1 is provided with a thread pushing mechanism, and the thread pushing mechanism comprises a gas cylinder 501 mounted on the lower right front end of the bottom plate 1. The output shaft of the gas cylinder 501 is fixedly connected to the rear end of the thread pushing plate 502, the inside of the thread pushing plate 502 is provided with a pushing groove at the upper left side, and the right outer side of the hot tangent cutter 305 is slidably connected to the inside of the pushing groove.

[0029] In the embodiment, the output shaft of the cylinder 501 is extended to make the pusher plate 502 move backward, so as to drive the pusher plate 502 to slide along the right outer side of the hot cutting blade 305, and the sewing thread adhered to the outer end of the hot cutting blade 305 is scraped off, so that the sewing thread is not adhered to the surface of the hot cutting blade 305 at the melting position of the hot cutting position.

[0030] Please see Figure 1 , Figure 2 and Figure 3 and can be combined Figure 4 , the applicant briefly describes the use principle of the utility model: when the thread needs to be cut, the second electromagnet 407 and the third electromagnet 408 are powered on first, so that the second electromagnet 407 and the third electromagnet 408 attract each other and approach each other until contact, and the sewing thread is clamped between the second electromagnet 407 and the third electromagnet 408, then the electric heater 304 is started to heat the hot cutting blade 305, and then the first electromagnet 303 is powered on to generate magnetism, so that the first electromagnet 303 moves to the fixed block 301, and drives the electric heater 304 and the hot cutting blade 305 to move right, and the right end of the sewing thread is cut off.

[0031] When the melting position of the hot cutting position of the sewing thread is adhered to the surface of the hot cutting blade 305, the output shaft of the cylinder 501 is extended to make the pusher plate 502 move backward, so as to drive the pusher plate 502 to slide along the right outer side of the hot cutting blade 305, and the sewing thread adhered to the outer end of the hot cutting blade 305 is pushed down, so that the sewing thread is not adhered to the surface of the hot cutting blade 305 at the melting position of the hot cutting position.

[0032] In summary, the technical scheme of the utility model makes up for the defects in the prior art, successfully completes the invention task, and truly realizes the technical effects described in the technical effect column above.

Claims

1. An electronic pattern sewing machine hot thread cutting structure, characterized by, The utility model relates to a cutting mechanism for sewing machine, including: Bottom plate (1) and connecting frame (2), connecting frame (2) is fixedly connected on the right end of the upper and lower sides of bottom plate (1), characterized by: the right end of the upper side of bottom plate (1) and the right end of connecting frame (2) are provided with cutting mechanism, the cutting mechanism includes cutting unit and clamping unit, cutting unit is arranged at the right end of the upper side of bottom plate (1), clamping unit is arranged at the right end of connecting frame (2), The clamping unit includes the fixed link (401) that is fixedly connected to the front and back of the one end of the right side of connecting frame (2) away from bottom plate (1), the right end of the adjacent side of the two fixed links (401) of the right side of connecting frame (2) is fixedly connected with the side plate (402), the adjacent side of the two side plates (402) outside the fixed link (401) is fixedly connected with the limiting rod (403), the middle position between the two side plates (402) outside the fixed link (401) is fixedly connected with the intermediate plate (404), the left and right sides of intermediate plate (404) are fixedly connected with the second spring (405), the one end of the second spring (405) away from intermediate plate (404) is fixedly connected with the L-shaped rod (406), the one end of the L-shaped rod (406) away from the fixed link (401) of the left side of intermediate plate (404) is installed with the second electromagnet (407), the one end of the L-shaped rod (406) away from the fixed link (401) of the right side of intermediate plate (404) is installed with the third electromagnet (408).

2. An electronic pattern sewing machine hot thread cutting structure according to claim 1, characterized in that: The cutting unit includes the fixed block (301) that is fixedly connected to the right side of the upper side of bottom plate (1), the left end of fixed block (301) is fixedly connected with the first spring (302), the left end of first spring (302) is fixedly connected with the first electromagnet (303), the right end of first electromagnet (303) is fixedly connected with electric heater (304), the right end of electric heater (304) is fixedly connected with hot cutting line blade (305).

3. An electronic pattern sewing machine hot thread cutting structure according to claim 2, characterized in that: The number of fixed block (301) is two, and symmetrically fixedly connected to the right side of the upper side of bottom plate (1), the lower side of first electromagnet (303), electric heater (304) and hot cutting line blade (305) is slidably connected with the upper side of bottom plate (1), the front and back sides of electric heater (304) are slidably connected with the adjacent side of two fixed blocks (301).

4. The hot thread cutting mechanism for an electronic pattern sewing machine according to claim 3, wherein: The fixed block (301) is an iron block.

5. The hot thread cutting mechanism for electronic pattern sewing machine as claimed in claim 1 wherein: The inside of intermediate plate (404) is provided with a circular hole, the one end of L-shaped rod (406) inside close to fixed link (401) is provided with a limiting hole, the inside of limiting rod (403) passes through the circular hole, the outside of limiting rod (403) is slidably connected with the inside of limiting hole, the side away from second electromagnet (407) or third electromagnet (408) of L-shaped rod (406) is slidably connected with the outside of fixed link (401).

6. An electronic pattern sewing machine hot thread cutting structure according to claim 5, characterized in that: The right end of second electromagnet (407) and the left end of third electromagnet (408) are mutually adsorbed, and sewing thread passes between second electromagnet (407) and third electromagnet (408).

7. The hot thread cutting mechanism of an electronic pattern sewing machine according to claim 2, wherein: The lower right end of the bottom plate (1) is provided with a push line mechanism, the push line mechanism comprises a pneumatic cylinder (501) installed at the lower right front end of the bottom plate (1), the rear end of the output shaft of the pneumatic cylinder (501) is fixedly connected with a push line plate (502), the inside of the upper left side of the push line plate (502) is provided with a push groove, and the right end of the outside of the hot cutting line blade (305) is in sliding connection with the inside of the push groove.

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