Needle changing structure of raising bottom plate

Abstract

The utility model relates to the technical field of bottom plates, and discloses a needle replacing structure of a bottom plate, which comprises a bottom plate body (1), a movable needle (2) arranged on the bottom plate body (1) and an elastic sheet (3), one end of the elastic sheet (3) is fixed on the bottom plate body (1), the other end of the elastic sheet (3) is a free end of the elastic sheet (3), and the movable needle (2) is fixed on the bottom plate body (1). And the free end of the elastic sheet (3) is matched with the movable needle (2) and clamps and buckles the movable needle (2) on the lifting bottom plate body (1). The structure is simple and reasonable, and the target moving needle can be rapidly and effectively replaced.

Description

Technical Field

[0001] The utility model relates to the technical field of base plates, in particular to a needle changing structure of a base plate. Background Art

[0002] Knitting machines are a type of knitting machinery, generally referring to flat knitting machines, that is, machines that use a horizontal knitting needle bed for knitting. The main structure consists of a machine body, a machine head and a frame. Most of the existing knitting machines are computer knitting machines, which are controlled by an automated electronic control system. The electronic control system refers to the combination of electric traction and control circuits that control the start, brake, forward and reverse rotation, speed regulation, etc. of the machine's motor.

[0003] The movable needle in the prior art is fixed by welding, and its welding strength is greatly affected by the material and production process. It is easy to be damaged when subjected to large force, and it is impossible to replace a single needle. When a single needle is damaged, the entire base needle plate can only be replaced, and the replacement is time-consuming and labor-intensive. Therefore, it is necessary to design a needle that can withstand stronger force and can be replaced without disassembling the base plate, which greatly saves the time and cost of repairing a broken needle. Utility Model Content

[0004] The utility model aims at the shortcomings of the prior art and provides a needle changing structure of a bottom plate.

[0005] In order to solve the above technical problems, the utility model is solved by the following technical solutions:

[0006] A needle changing structure for a base plate comprises a base plate body, a movable needle installed on the base plate body, and a spring sheet arranged in one-to-one correspondence with the movable needle, one end of the spring sheet is fixed on the base plate body, and the other end of the spring sheet is its free end, the spring sheet is an elastic sheet structure whose free end can be moved and displaced, the free end of the spring sheet cooperates with the movable needle and clamps the movable needle on the base plate body.

[0007] Preferably, a first clamping block is provided at the lower part of the front and rear sides of the moving needle, and a second clamping block is provided on the free end of the spring sheet to contact and cooperate with the first clamping block. The second clamping block is located above the first clamping block and clamps the moving needle to the bottom plate body.

[0008] Preferably, the first clamping block protrudes outwardly perpendicular to the axis of the moving needle, the outward protrusion distance of the first clamping block gradually decreases from top to bottom, and the cross-section of the first clamping block is a triangle.

[0009] Preferably, a clamping groove is further provided on the movable needle. The clamping groove is located above the first clamping block, and the second clamping block is matched with the clamping groove and placed in the clamping groove. Through the design of the first clamping block, the second clamping block and the clamping groove, and combined with the front-back symmetrical arrangement of the above structure, the movable needle is fixed on the base plate body by the elastic sheet. The lower part of the elastic sheet is located between two adjacent movable needles, and the width of the lower part of the elastic sheet is smaller than the interval between two adjacent movable needles. The second clamping block is located on the left or right side of the upper part of the elastic sheet, and the second clamping block extends into the clamping groove to the left or right.

[0010] Preferably, it further includes a connecting seat fixed on the base plate body. A plurality of elastic sheets are arranged in sequence and fixedly installed on the connecting seat to form a spring clip with the connecting seat. The elastic sheet and the connecting seat are integrally formed.

[0011] Preferably, there are two spring clips, which are respectively fixedly installed on the front and rear sides of the base plate body and clamp the movable needle inward. The movable needle is a front-back symmetrical needle body structure, and the two spring clips are respectively matched on the front side and the rear side of the movable needle. It further includes a pressing plate, and a positioning pin is provided on the pressing plate. Positioning holes matched with the positioning pin are provided on the base plate body and the connecting seat.

[0012] Preferably, it further includes a needle picker that can be inserted into the base plate. The lower part of the needle picker is provided with an inclined surface, which is arranged forward and downward or backward and downward. The inclined surface is in contact and cooperation with the elastic sheet. The downward moving needle picker pushes the free end of the elastic sheet forward or backward through the inclined surface, and the elastic sheet pushed outwards releases the clamping on the movable needle. The lower part of the needle picker is provided with a convex platform protruding towards the movable needle.

[0013] Preferably, the needle picker is a symmetrical structure. The front side and the rear side of the lower part of the needle picker are both provided with inclined surfaces. The lower part of the needle picker is provided with a slot, which facilitates the insertion of the needle picker into the base plate. The inclined surfaces are symmetrically distributed on the front and rear sides of the slot.

[0014] Preferably, the width of the needle picker is smaller than the interval between two adjacent movable needles. The inclination angle of the inclined surface with the horizontal plane is 50° - 80°.

[0015] Since the above technical solutions are adopted in the present utility model, it has remarkable technical effects: Through the installation of the elastic sheet and the cooperation of the needle picker, the present application can simultaneously realize the fixation of the movable needle and the replacement of a single movable needle. The structure of the present application is simple, highly practical, can quickly and effectively replace the target movable needle, is convenient for maintenance and repair, reduces the equipment cost, and improves the production efficiency. Brief Description of the Drawings

[0016] Figure 1 is the structural schematic diagram of the present utility model.

[0017] Figure 2 is the partial enlarged view A of the present utility model

[0018] Figure 3It is a partial structural schematic diagram of the utility model.

[0019] Figure 4 It is a structural schematic diagram of the movable needle of the utility model.

[0020] Figure 5 It is a structural schematic diagram of the shrapnel of the utility model.

[0021] Figure 6 It is a structural schematic diagram of the needle remover of the utility model.

[0022] The names of the parts indicated by the numerical labels in the accompanying drawings are as follows: 1-bottom plate body, 2-movable needle, 3-spring, 4-connecting seat, 5-pressing plate, 6-needle remover, 21-first clamping block, 22-slot, 31-second clamping block, 51-locating pin, 61-inclined surface, 62-slot, 63-boss. DETAILED DESCRIPTION

[0023] The utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. Example 1

[0024] A needle changing structure for a base plate, as shown in the figure, includes a base plate body 1, a movable needle 2 installed on the base plate body 1, and a spring piece 3 arranged in a one-to-one correspondence with the movable needle 2. One end of the spring piece 3 is fixed on the base plate body 1, and the other end of the spring piece 3 is its free end. The spring piece 3 is an elastic sheet structure whose free end can be moved and displaced. The free end of the spring piece 3 cooperates with the movable needle 2 and clamps the movable needle 2 on the base plate body 1. Example 2

[0025] The same as embodiment 1, except that a first clamping block 21 is provided at the lower part of the movable needle 2, and a second clamping block 31 is provided at the free end of the spring piece 3 to contact and cooperate with the first clamping block 21, and the second clamping block 31 is located above the first clamping block 21 and clamps the movable needle 2 on the bottom plate body 1.

[0026] The first clamping block 21 protrudes outwardly perpendicular to the axis of the moving needle 2 , and the outward protrusion distance of the first clamping block 1 gradually decreases from top to bottom. The cross section of the first clamping block 21 is a triangle. Example 3

[0027] The same as Example 1, the difference is that a slot 22 is also provided on the movable needle 2, and the slot 22 is located above the first clamping block 21, and the second clamping block 31 cooperates with the slot 22 and is placed in the slot 22; through the design of the first clamping block 21, the second clamping block 31 and the slot 22, and combined with the front-to-back symmetrical arrangement of the above structure, the movable needle 2 is fixed to the base plate body 1 by the spring piece 3.

[0028] The lower part of the elastic piece 3 is located between two adjacent moving needles 2, and the width of the lower part of the elastic piece 3 is smaller than the interval between two adjacent moving needles 2; the second clamping block 31 is located on the left or right side of the upper part of the elastic piece 3, and the second clamping block 31 extends into the clamping groove 22 to the left or right. Embodiment 4

[0029] Same as Embodiment 1, except that it further includes a connecting seat 4 fixed on the starting base plate body 1, and a plurality of elastic pieces 3 are arranged in sequence and fixedly installed on the connecting seat 4 to form a spring clip with the connecting seat 4; the elastic piece 3 and the connecting seat 4 are integrally formed.

[0030] There are two spring clips, and the two spring clips are respectively fixedly installed on the front and rear sides of the starting base plate body 1 and clamp the moving needle 2 inward. The moving needle 2 is a needle body structure that is symmetric front and back. The two spring clips are respectively matched on the front side and the rear side of the moving needle 2; it further includes a pressing plate 5, and a positioning pin 51 is provided on the pressing plate 5 located at the rear side. Positioning holes for cooperating with the positioning pin 51 are provided on the starting base plate body 1 and the connecting seat 4. Embodiment 5

[0031] Same as Embodiment 1, except that it further includes a needle picker 6 that can be inserted into the starting base plate. The lower part of the needle picker 6 is provided with an inclined surface 61, and the inclined surface 61 is arranged forward and downward or backward and downward. The inclined surface 61 is in contact and cooperation with the elastic piece 3. The downward moving needle picker 6 pushes the free end of the elastic piece 3 forward or backward through the inclined surface, and the elastic piece 3 pushed outwards releases the clamping with the moving needle 2.

[0032] The lower part of the needle picker 6 is provided with a convex platform 63 protruding towards the moving needle 2. The thickness of the needle picker with the convex platform 63 is still smaller than the interval between two adjacent moving needles 2. The needle picker 6 is inserted downward, thereby driving the convex platform 63 to move downward. Then the needle picker 6 is slightly shifted towards the moving needle 2 horizontally, so that the upper end surface of the convex platform 63 is located below the lower end of the first clamping block 21, providing space for the extraction of the moving needle 2. When the needle picker 6 is extracted, the moving needle 2 can also be driven to be extracted smoothly for replacement.

[0033] The needle picker 6 is a symmetric structure. The front side and the rear side of the lower part of the needle picker 6 are both provided with inclined surfaces. The lower part of the needle picker 6 is provided with a slot 62, and the slot 62 can facilitate the insertion of the needle picker 6 into the starting base plate. The inclined surfaces 61 are symmetrically distributed on the front and rear sides of the slot 62.

[0034] The width of the needle picker 6 is smaller than the interval between two adjacent moving needles 2; the inclination angle of the inclined surface 61 with respect to the horizontal plane is 65°.

[0035] In summary, the above are only the preferred embodiments of the present invention. All equivalent changes and modifications made according to the scope of the patent application of the present invention shall fall within the scope covered by the patent of the present invention.

Claims

1. A needle-changing structure for a bottom board, comprising a bottom board body (1), and further comprising a movable needle (2) installed on the bottom board body (1), characterized in that: It further includes an elastic piece (3). One end of the elastic piece (3) is fixed on the bottom plate body (1), and the other end of the elastic piece (3) is its free end. The free end of the elastic piece (3) cooperates with the moving needle (2) and clamps the moving needle (2) on the bottom plate body (1).

2. The needle-changing structure of a bottom plate according to claim 1, characterized in that: A first clamping block (21) is provided at the lower part of the moving needle (2), and a second clamping block (31) which is in contact and cooperation with the first clamping block (21) is provided on the free end of the elastic piece (3). The second clamping block (31) is located above the first clamping block (21) and clamps the moving needle (2) on the bottom plate body (1).

3. The needle-changing structure of a bottom plate according to claim 1, characterized in that: The first clamping block (21) protrudes outwards, and the distance of the outward protrusion of the first clamping block (21) gradually becomes smaller from top to bottom.

4. A needle-changing structure for a bottom plate according to claim 1, characterized in that: A clamping groove (22) is further provided on the moving needle (2). The clamping groove (22) is located above the first clamping block (21). The second clamping block (31) cooperates with the clamping groove (22) and is placed in the clamping groove (22). The lower part of the elastic piece (3) is located between two adjacent moving needles (2). The width of the lower part of the elastic piece (3) is smaller than the interval between two adjacent moving needles (2). The second clamping block (31) is located on the left or right side of the upper part of the elastic piece (3), and the second clamping block (31) extends into the clamping groove (22) towards the left or right.

5. The needle-changing structure of a bottom plate according to claim 1, wherein: It further includes a connecting seat (4) fixed on the bottom plate body (1). A plurality of elastic pieces (3) are arranged in sequence and fixedly installed on the connecting seat (4) to form a spring clip with the connecting seat (4). The elastic piece (3) and the connecting seat (4) are integrally formed.

6. The needle-changing structure of a bottom plate according to claim 5, characterized in that: There are two spring clips, and the two spring clips are respectively fixedly installed on the front and rear sides of the bottom plate body (1) and clamp the moving needle (2) inwards. The moving needle (2) is a needle body structure symmetrical in the front and rear. The two spring clips are respectively matched with the front side and the rear side of the moving needle (2). It further includes a pressing plate (5). A positioning pin (51) is provided on the pressing plate (5), and positioning holes which are in cooperation with the positioning pin (51) are provided on the bottom plate body (1) and the connecting seat (4).

7. The needle-changing structure of a bottom plate according to claim 1, characterized in that: It further includes a needle picker (6) which can be inserted into the bottom plate. An inclined surface (61) is provided at the lower part of the needle picker (6). The inclined surface (61) is arranged towards the front lower side or the rear lower side. The inclined surface (61) is in contact and cooperation with the elastic piece (3). The downward moving needle picker (6) pushes the elastic piece (3) forwards or backwards through the inclined surface.

8. A needle-changing structure for a bottom plate according to claim 7, characterized in that: A convex platform (63) protruding towards the direction of the moving needle (2) is provided at the lower part of the needle picker (6).

9. The needle-changing structure of a bottom plate according to claim 7, characterized in that: The needle picker (6) is of a symmetrical structure. The front side and the rear side of the lower part of the needle picker (6) are both provided with inclined surfaces (61). A slot (62) is provided at the lower part of the needle picker (6). The inclined surfaces (61) are symmetrically distributed on the front and rear sides of the slot (62).

10. The needle-changing structure of a bottom plate according to claim 7, wherein: The width of the needle picker (6) is smaller than the interval between two adjacent moving needles (2). The inclination angle of the inclined surface (61) with respect to the horizontal plane is 50° - 80°.

Images