Mounting structure of curved needle frame fixing seat and sewing equipment
By introducing a limiting component into the mounting structure of the bending needle holder, the problem of incorrect resetting of the bending needle holder is solved, ensuring that it is in the correct position, avoiding damage and displacement of machine parts, and achieving low-cost installation and maintenance.
Patent Information
- Application Number
- CN202422978592.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-03
- Publication Date
- 2025-11-21
- Estimated Expiration
- 2034-12-03
AI Technical Summary
In the existing technology, problems such as incorrect resetting of the bending needle holder causing collisions between the needle and the bending needle, damage to the bending needle holder and the lifting cam, and positional misalignment have not yet been effectively solved.
A limiting component is introduced into the mounting structure of the needle holder fixing seat. By optimizing the position and method of the limiting component, the reset limit position of the needle holder fixing seat is restricted, ensuring that the clutch shaft and the blocking component are correctly engaged, and keeping the needle holder fixing seat in the correct position.
It effectively avoids collisions between the needle and the bending needle, as well as damage to the bending needle holder and the lifting cam, preventing machine misalignment and reducing the frequency of parts replacement and maintenance. At the same time, the limiting component is low in cost and easy to install.
Smart Images
Figure CN223576733U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of sewing equipment technology, and in particular to an installation structure for a looper holder fixing base and a sewing device. Background Technology
[0002] The looper holder of a multi-needle machine is positioned relative to the looper shaft by inserting the tapered end of the clutch shaft (forward clutch shaft) into the tapered hole of the right retaining ring of the looper holder. When threading is required, the clutch shaft needs to be pulled out, causing the looper holder to flip forward around the looper shaft and tilt, making it easier to thread.
[0003] When the needle holder retainer is reset, if the tapered end of the clutch shaft does not retract into the tapered hole of the right retaining ring of the needle holder (i.e., it over-rotates during reset), the clutch shaft will become stuck in the upper part of the right retaining ring of the needle holder. In this situation, the needle holder retainer is in the wrong position. After the machine is running, the needle will move downwards and collide with the needle, causing damage to both. The needle holder retainer may also collide with the lifting cam, causing damage to both the retainer and the lifting cam, or misalignment of the right retaining ring's locking position.
[0004] Ensuring the correct reset of the bending needle holder is a crucial factor in avoiding the aforementioned malfunctions and remains a technical challenge. Utility Model Content
[0005] This application provides an improved mounting structure for a bend holder to ensure that the bend holder is correctly reset.
[0006] This application discloses an installation structure for a bent needle holder fixing base, comprising:
[0007] The support assembly includes a bend shaft and a stopper fixed to the bend shaft;
[0008] A bend holder fixing seat is rotatably sleeved on the bend shaft and its axial position is restricted by the blocking member. The bend holder fixing seat has a first rotation direction around the bend shaft and a second rotation direction when resetting.
[0009] The clutch shaft is movably disposed between the bent needle holder fixing seat and the blocking member to restrict or allow the bent needle holder fixing seat to rotate;
[0010] A limiting member, installed on the blocking member, is used to limit the extreme position of the bending needle holder fixing seat along the second rotation direction.
[0011] Several alternative methods are provided below, but they are not intended as additional limitations on the overall solution above. They are merely further additions or optimizations. Provided there are no technical or logical contradictions, each alternative method can be combined individually with respect to the overall solution above, or multiple alternative methods can be combined with each other.
[0012] In one of the embodiments, one side of the curved needle holder fixing seat has a matching surface along the circumference of the curved needle shaft, and the limiting member abuts against the matching surface in the limit position.
[0013] In one of the embodiments, the blocking member is two blocking rings fixed on the curved needle shaft, and each of the blocking rings is located on the two sides of the curved needle holder fixing seat, wherein at least one of the blocking rings is provided with the limiting member.
[0014] In one of the embodiments, the limiting member interferes with the rotation path of the curved needle holder fixing seat along the axial direction of the curved needle shaft.
[0015] In one of the embodiments, one of the blocking rings is a ring-shaped hoop, the ring-shaped hoop is fastened to the curved needle shaft by a fastener, and the limiting member is a blocking plate connected to the ring-shaped hoop through the fastener.
[0016] In one of the embodiments, one of the blocking rings is an integral ring-shaped structure and has an axial end surface, and the limiting member is a limiting pin fixed to the axial end surface.
[0017] In one of the embodiments, the blocking member is provided with a first insertion hole for the clutch shaft to pass through, and the curved needle holder fixing seat moves to the limit position along the second rotation direction, and the clutch shaft is located corresponding to the first insertion hole.
[0018] In one of the embodiments, the mounting structure further comprises:
[0019] a first elastic member acting between the curved needle holder fixing seat and the blocking member to drive the curved needle holder fixing seat to move along the first rotation direction;
[0020] a second elastic member acting between the curved needle holder fixing seat and the clutch shaft to drive the clutch shaft to enter the first insertion hole.
[0021] In one of the embodiments, the curved needle holder fixing seat is provided with an extension arm, the extension arm is provided with a second insertion hole for the clutch shaft to pass through, and the curved needle holder fixing seat moves to the limit position along the second rotation direction, and the limiting member abuts against the extension arm.
[0022] The application also provides a sewing device comprising the mounting structure of the curved needle holder fixing seat of any one of the embodiments of the application.
[0023] The mounting structure of the curved needle holder fixing seat of the application is provided with a limiting member, and the specific mode of the limiting member is optimized according to related components, so as to limit the limit position of the curved needle holder fixing seat when it is reset, and ensure that the clutch shaft and the blocking member are combined to keep the curved needle holder fixing seat in the correct position. BRIEF DESCRIPTION OF DRAWINGS
[0024] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the accompanying drawings needed to be used in the embodiments or the prior art description will be briefly introduced. Obviously, the accompanying drawings in the following description only represent some embodiments of the present application, and for those skilled in the art, other drawings can be obtained from these drawings without any creative effort.
[0025] Figure 1 Schematic diagram for correct resetting of the fixed seat of the curved needle holder;
[0026] Figure 2 Schematic diagram for resetting deviation of the fixed seat of the curved needle holder;
[0027] Figure 3 Schematic diagram of the mounting structure of the fixed seat of the curved needle holder in an embodiment of the present application;
[0028] Figure 4 Schematic diagram of the mounting structure of the fixed seat of the curved needle holder in an embodiment of the present application; Figure 3 Schematic diagram of the mounting structure of the fixed seat of the curved needle holder in an embodiment of the present application;
[0029] Figure 5 Schematic diagram of the mounting structure of the fixed seat of the curved needle holder in an embodiment of the present application; Figure 4 Schematic diagram of the mounting structure of the fixed seat of the curved needle holder in an embodiment of the present application;
[0030] Figure 6 Schematic diagram of the mounting structure of the fixed seat of the curved needle holder in an embodiment of the present application;
[0031] Figure 7 Schematic diagram of the mounting structure of the fixed seat of the curved needle holder in an embodiment of the present application; Figure 6 Schematic diagram of the mounting structure of the fixed seat of the curved needle holder in an embodiment of the present application;
[0032] The reference signs of the components are as follows:
[0033] 100, curved needle shaft; 110, first stop ring; 111, limiting pin; 120, second stop ring; 121, fastener; 122, baffle; 123, first insertion hole; 130, first elastic member;
[0034] 200, fixed seat of curved needle holder; 201, matching surface; 210, first extension arm; 211, second insertion hole; 220, second extension arm;
[0035] 300, clutch shaft; 310, shaft ring; 320, transmission arm; 321, open slot; 330, pull rod; 340, second elastic member. DETAILED DESCRIPTION
[0036] In order to make the above objectives, features and advantages of the present application more clear and comprehensible, the detailed description of the specific embodiments of the present application is made below with reference to the accompanying drawings. In the following description, a lot of specific details are set forth in order to provide a thorough understanding of the present application. However, the present application can be implemented in many different ways other than the one described herein, and one of ordinary skill in the art can make similar improvements without departing from the scope of the present application, and therefore the present application is not limited to the specific embodiments disclosed below.
[0037] It is noted that when an element is referred to as being "on" or "connected to" another element, it can be directly on the other element or intervening elements can also be present. In addition, the order of the steps of methods should not be construed as a strict limitation unless otherwise specifically noted in the art. The use of "about" to describe a given value means that the value is within a range of ±10% of the given value.
[0038] In addition, the terms "first", "second", etc. are used herein only to describe various elements, and are not intended to imply relative importance or a number of the indicated elements. Thus, a feature with "first", "second" can explicitly or implicitly include at least one of the features. In the description of the present application, the meaning of "a plurality of" is at least two, such as two, three, etc., unless otherwise specifically limited.
[0039] In the present application, unless otherwise specifically defined and limited, the "on", "under", "above" and "over" of the first feature to the second feature can be that the first feature is directly in contact with the second feature, or the first feature is indirectly in contact with the second feature through an intermediate medium. Moreover, the "on", "above" and "over" of the first feature to the second feature can be that the first feature is directly above or obliquely above the second feature, or only indicates that the first feature is higher than the second feature in horizontal height (or in a use state, or in a certain drawing perspective). The "under", "below" and "under" of the first feature to the second feature can be that the first feature is directly below or obliquely below the second feature, or only indicates that the first feature is lower than the second feature in horizontal height (or in a use state, or in a certain drawing perspective).
[0040] Unless otherwise defined, all technical and scientific terms used in the specification of the present application have the same meaning as commonly understood by one of ordinary skill in the art to which the present application belongs. The terms used in the specification of the present application are only for the purpose of describing the specific embodiments and are not intended to limit the present application. The term "and / or" used in the specification of the present application includes any and all combinations of one or more of the related listed items.
[0041] Reference is made to Figure 1 , Figure 2, the bending needle frame fixing seat 200 is arranged on the bending needle shaft 100, and the axial position of the bending needle frame fixing seat 200 is limited by the first blocking ring 110 (left side) and the second blocking ring 120 (right side). When the second blocking ring 120 is adjusted to the correct position, the second blocking ring 120 is fixed on the bending needle shaft 100 through the fastener 121. The clutch shaft 300 has a tapered end, the clutch shaft 300 is fixed with the shaft ring 310, and the clutch shaft 300 is matched with the tapered hole, that is, the first insertion hole 123 on the second blocking ring 120 under the action of the second elastic element 340, so that the bending needle frame fixing seat 200 is kept on the bending needle shaft 100.
[0042] Wherein the reverse front pull rod fork, that is, the transmission arm 320 is connected with the reverse front pull rod, that is, the pull rod 330 through a screw, the other end of the transmission arm 320 has an open slot 321 and is connected with the end of the clutch shaft 300. When the bending needle is threaded, the pull rod 330 is pulled to the left, the transmission arm 320 drives the clutch shaft 300 to move to the left, so that the tapered end of the clutch shaft 300 is completely separated from the first insertion hole 123 of the second blocking ring 120. At this time, the bending needle frame fixing seat 200 is turned down and popped out in the first rotation direction under the action of the torsional spring, that is, the first elastic element 130.
[0043] When the bending needle frame fixing seat 200 needs to be reset, if the operator always keeps force on the pull rod 330, the clutch shaft 300 may not be reset and inserted into the first insertion hole 123 under the action of the second elastic element 340. Once the bending needle frame fixing seat 200 is excessively turned over, the pull rod 330 is released at this time, the clutch shaft 300 moves to the right under the action of the second elastic element 340, and the clutch shaft 300 is clamped above the second blocking ring 120 until the state shown in the figure is reached. At this time, the bending needle frame fixing seat 200 is clamped with the second blocking ring 120 under the action of the first elastic element 130, which gives the operator the illusion that the bending needle frame fixing seat 200 has been normally reset. However, since the bending needle frame fixing seat 200 is in the wrong position, if the machine is operated at this time, the machine needle will be hit by the bending needle and the bending needle frame, which will cause the machine needle to be broken and the bending needle to be damaged. The bending needle frame fixing seat 200 may also be hit by the drag wheel on the main shaft, which will cause the machine needle to run out of position. Figure 2
[0044] Referring to Figures 3-5 An embodiment of the present application provides a mounting structure of a bending needle frame fixing seat 200, which comprises a supporting assembly, the bending needle frame fixing seat 200, a clutch shaft 300 and a limiting element.
[0045] The supporting assembly comprises a bending needle shaft 100 and a blocking element fixed on the bending needle shaft 100. The blocking element specifically comprises two blocking rings, that is, a first blocking ring 110 and a second blocking ring 120, which are fixed on the bending needle shaft 100. Each blocking ring is located on the two sides of the bending needle frame fixing seat 200 to limit the axial position of the bending needle frame fixing seat 200.
[0046] The bending needle frame fixing seat 200 is rotatably sleeved on the bending needle shaft 100, and has a first rotation direction around the bending needle shaft 100 and a second rotation direction when being reset. The clutch shaft 300 is movably arranged between the bending needle frame fixing seat 200 and the second stop ring 120, so as to limit or allow the rotation of the bending needle frame fixing seat 200.
[0047] The bending needle frame fixing seat 200 has an extension arm on one side, which is a first extension arm 210 and a second extension arm 220. The second extension arm 220 is provided with a second insertion hole 211. The second stop ring 120 is provided with a first insertion hole 123. The clutch shaft 300 penetrates the first insertion hole 123 and the second insertion hole 211, so as to keep the relative position of the bending needle frame fixing seat 200 and the bending needle shaft 100.
[0048] In order to drive the bending needle frame fixing seat 200 to move in the first rotation direction, the mounting structure further comprises a torsion spring, i.e. a first elastic member 130, which acts between the bending needle frame fixing seat 200 and the second stop ring 120.
[0049] In order to drive the clutch shaft 300 to reset, the mounting structure further comprises a second elastic member 340, which is sleeved on the clutch shaft 300. One end of the second elastic member 340 abuts against the second extension arm 220, and the other end abuts against the fixed collar 310 on the clutch shaft 300, so as to drive the clutch shaft 300 to enter the first insertion hole 123 and lock the bending needle frame fixing seat 200.
[0050] The limiting member in the embodiment is installed on at least one of the stop rings. When the bending needle frame fixing seat 200 moves to the limit position in the second rotation direction, it is blocked by the limiting member, i.e. the limiting member interferes with the rotation path of the bending needle frame fixing seat 200.
[0051] In order to prevent Figure 2 The position of the limiting member can be adjusted so that when the bending needle frame fixing seat 200 moves to the limit position in the second rotation direction, the clutch shaft 300 is just opposite to the position of the first insertion hole 123, so as to ensure that the clutch shaft 300 is correctly inserted into the first insertion hole 123.
[0052] Along the circumference of the bending needle shaft 100, one side of the bending needle frame fixing seat 200 has a matching surface 201. In the limit position, the limiting member abuts against the matching surface 201. In order to facilitate space arrangement, the limiting member can extend from the stop ring along the axial direction of the bending needle shaft 100 until it extends to the movement path of the matching surface 201.
[0053] Figure 5In the shown embodiment, the second stop ring 120 is a ring-shaped hoop, which is fastened to the curved needle shaft 100 by means of a fastener 121, and the limiting member is a stop plate 122 connected to the ring-shaped hoop via the fastener 121. In this embodiment, the stop plate 122 is added to the second stop ring 120, and one side of the stop plate 122 can be sleeved to the fastener 121, so as to facilitate the adjustment of the spatial position thereof. For example, when being installed, the curved needle holder fixing seat 200 is first adjusted to the correct position, then the stop plate 122 is adjusted to abut against the matching surface 201, and then the fastener 121 is locked. In this way, when the curved needle holder fixing seat 200 is reset, it is blocked by the stop plate 122 and cannot be excessively flipped over. At this time, the clutch shaft 300 is loosened, and the clutch shaft 300 can be inserted into the first insertion hole 123, thereby avoiding the problems of collision and misalignment.
[0054] Referring to Figures 6-7 In another embodiment, the first stop ring 110 is an integral ring-shaped structure and is fixed to the curved needle shaft 100 by means of a radial pin. The first stop ring 110 has an axial end face, and the limiting member is a limiting pin 111 fixed to the axial end face. When the curved needle holder fixing seat 200 is reset, the limiting pin 111 can abut against the matching surface 201, thereby limiting the excessive flipping over of the curved needle holder fixing seat 200 and ensuring the correct resetting of the curved needle holder fixing seat 200.
[0055] In another embodiment, the limiting member can also abut against at least one extension arm. When the curved needle holder fixing seat 200 moves to the limit position in the second rotation direction, the limiting member acts on the extension arm, thereby ensuring the correct resetting of the curved needle holder fixing seat 200.
[0056] In another embodiment, the present application also provides a sewing device, such as a multi-needle machine, which can adopt the mounting structure of the curved needle holder fixing seat of any of the above embodiments. The other structures of the sewing device can be implemented in combination with the prior art, and will not be described herein.
[0057] The mounting structure and the sewing device of the present application solve a series of problems caused by the operator's mistake, such as the damage of parts and the misalignment of the machine, and also avoid the subsequent influences caused by the replacement of parts and the repair of the machine. Moreover, the limiting member has low cost, simple installation and convenient debugging.
[0058] The technical features of the above-described embodiments can be combined in any manner. In order to make the description concise, not all possible combinations of the technical features in the above-described embodiments are described, however, as long as the combinations of the technical features do not exist contradictions, they should be considered as the scope disclosed in the present specification. When the technical features in different embodiments are embodied in the same drawing, it can be considered that the drawing also discloses the combination of each embodiment involved.
[0059] The above-described embodiments are merely illustrative of several embodiments of the present application, which are described in more detail and in a specific manner, but should not be construed as limiting the scope of the patent application. It should be noted that for those skilled in the art, several modifications and improvements can be made without departing from the concept of the present application, and these all belong to the protection scope of the present application. Therefore, the patent protection scope of the present application should be subject to the appended claims.
Claims
1. A mounting structure of a fixed seat of a curved needle holder, characterized by comprising: The installation structure comprises: a support assembly comprising a curved needle shaft and a blocking member fixed to the curved needle shaft; a curved needle holder fixing base rotatably sleeved on the curved needle shaft and axially limited by the blocking member, the curved needle holder fixing base having a first rotation direction around the curved needle shaft and a second rotation direction when reset; a clutch shaft movably penetrating between the curved needle holder fixing base and the blocking member to limit or allow rotation of the curved needle holder fixing base; a limiting member installed on the blocking member to limit the extreme position of the curved needle holder fixing base in the second rotation direction.
2. The mounting structure of the fixed seat of a curved needle holder according to claim 1, wherein One side of the curved needle holder fixing base has a matching surface along the circumference of the curved needle shaft, and the limiting member abuts against the matching surface at the extreme position.
3. The mounting structure of the fixed seat of the curved needle holder according to claim 1, wherein The blocking member is two blocking rings fixedly sleeved on the curved needle shaft, and each blocking ring is located on the two sides of the curved needle holder fixing base, wherein at least one blocking ring is provided with the limiting member.
4. The mounting structure of the fixed seat of the curved needle holder according to claim 3, wherein The limiting member interferes with the rotation path of the curved needle holder fixing base along the axial direction of the curved needle shaft.
5. The mounting structure of the fixed seat of the curved needle holder according to claim 3, wherein One of the blocking rings is a ring-shaped hoop, and the ring-shaped hoop is tightened on the curved needle shaft by a fastener, and the limiting member is a blocking plate connected to the ring-shaped hoop through the fastener.
6. The mounting structure of the fixed seat of a curved needle holder according to claim 3, wherein One of the blocking rings is an integral ring-shaped structure and has an axial end face, and the limiting member is a limiting pin fixed to the axial end face.
7. The mounting structure of the fixed seat of a curved needle holder according to claim 1, wherein The blocking member is provided with a first insertion hole for the clutch shaft to penetrate, and the clutch shaft corresponds to the position of the first insertion hole when the curved needle holder fixing base moves to the extreme position in the second rotation direction.
8. The mounting structure of the fixed seat of the curved needle holder according to claim 7, wherein The installation structure further comprises: a first elastic member acting between the curved needle holder fixing base and the blocking member to drive the curved needle holder fixing base to move in the first rotation direction; a second elastic member acting between the curved needle holder fixing base and the clutch shaft to drive the clutch shaft to enter the first insertion hole.
9. The mounting structure of the fixed seat of the curved needle holder according to claim 7, wherein The curved needle holder fixing base is provided with an extension arm, the extension arm is provided with a second insertion hole for the clutch shaft to penetrate, and the limiting member abuts against the extension arm when the curved needle holder fixing base moves to the extreme position in the second rotation direction.
10. A sewing apparatus characterized by comprising: The installation structure comprises the curved needle holder fixing base according to any one of claims 1-9.