Machine head of computerized embroidery machine and computerized embroidery machine

Abstract

The utility model discloses a machine head of a computerized embroidery machine and the computerized embroidery machine. The machine head of the computerized embroidery machine comprises a machine shell, a cam assembly and a connecting rod assembly, the cam assembly includes an eccentric cam and a crank connected to the eccentric cam. The connecting rod assembly comprises a connecting rod and a first bearing part, one end of the connecting rod is provided with a first installation part, the first bearing part is installed on the first installation part, and the connecting rod is connected to the machine shell through the first bearing part. The first bearing part comprises a first outer ring, a first shaft body and a first roller located between the first outer ring and the first shaft body, the first outer ring and the first shaft body are coaxially arranged, and the two ends of the first shaft body both protrude out of the first outer ring. Compared with the prior art, the first bearing piece does not need to be provided with an inner ring, so that a mounting gap between the first shaft body and the inner ring of the first shaft body in the prior art can be eliminated, connecting rod vibration caused by high-speed movement of the cam assembly can be reduced, abrasion of the connecting rod is restrained, and the service life of the connecting rod is prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of computer embroidery machines, in particular to a head of a computer embroidery machine and the computer embroidery machine. Background Art

[0002] The computer embroidery machine includes a machine head, which includes an eccentric cam, a connecting rod and a needle bar. The eccentric cam drives the needle bar to reciprocate in the vertical direction through the connecting rod.

[0003] As the eccentric cam speed increases, the service life of the connecting rod is greatly shortened. Utility Model Content

[0004] The present invention aims to solve at least one of the technical problems in the prior art. To this end, one purpose of the present invention is to provide a head of a computer embroidery machine and a computer embroidery machine, which can extend the service life of a connecting rod.

[0005] According to an embodiment of the first aspect of the present utility model, the head of a computer embroidery machine includes: a housing, a cam assembly located in the housing, and a connecting rod assembly located in the housing.

[0006] The cam assembly includes an eccentric cam and a crank connected to the eccentric cam.

[0007] The connecting rod assembly includes a connecting rod and a first bearing component. A first mounting portion is provided at one end of the connecting rod. The first bearing component is mounted on the first mounting portion. The connecting rod is connected to the housing through the first bearing component.

[0008] The first bearing component includes a first outer ring, a first shaft, and a first roller located between the first outer ring and the first shaft. The first outer ring and the first shaft are coaxially arranged, and both ends of the first shaft protrude from the first outer ring.

[0009] Compared with the prior art, the first bearing member of this embodiment does not need to be provided with an inner ring, so the installation gap between the first shaft body and its inner ring in the prior art can be eliminated, which helps to reduce the connecting rod vibration caused by the high-speed movement of the cam assembly, thereby suppressing the wear of the connecting rod and extending its service life.

[0010] According to some embodiments of the present invention, the connecting rod assembly further comprises a second bearing member, a second mounting portion is provided on a portion of the connecting rod away from its end, the second bearing member is mounted on the second mounting portion, and the crank is connected to the connecting rod via the second bearing member.

[0011] The second bearing component includes a second outer ring, a second shaft, and a second roller located between the second outer ring and the second shaft. The second outer ring and the second shaft are coaxially arranged, and one end of the second shaft protrudes from the second outer ring.

[0012] According to some embodiments of the present invention, the first outer ring is located in the middle of the first shaft.

[0013] According to some embodiments of the present invention, two pressing blocks are further included. The two pressing blocks are respectively arranged at two ends of the first shaft body. The pressing blocks are provided with arc-shaped grooves, and the arc-shaped grooves match the first shaft body.

[0014] According to some embodiments of the present invention, a first clamp structure is provided at the end where the crank is connected to the connecting rod.

[0015] According to some embodiments of the present invention, it also includes a needle bar and a driving member sleeved on the needle bar, the connecting rod assembly also includes a connecting shaft, the other end of the connecting rod is provided with a third mounting portion, the connecting shaft is installed on the third mounting portion, and the driving member is connected to the connecting rod through the connecting shaft.

[0016] According to some embodiments of the present invention, the third mounting portion is a second clamping hoop structure, and the end portion of the connecting rod connected to the connecting shaft is provided with a second clamping hoop structure.

[0017] The computer embroidery machine according to the embodiment of the second aspect of the present invention includes the head of the computer embroidery machine in the first aspect.

[0018] Additional aspects and advantages of the present invention will be given in the following description, will become apparent from the following description, or will be learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The above and / or additional aspects and advantages of the present invention will become apparent and readily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0020] Figure 1 This is a structural schematic diagram of a head of a computer embroidery machine according to an embodiment of the present utility model;

[0021] Figure 2 This is a partial schematic diagram of the interior of a computer embroidery machine head according to an embodiment of the present invention. Figure 1 ;

[0022] Figure 3 This is a partial schematic diagram of the interior of a computer embroidery machine head according to an embodiment of the present invention. Figure 2 ;

[0023] Figure 4 yes Figure 2 Explosion diagram of

[0024] Figure 5 is a structural schematic diagram of a first bearing member according to an embodiment of the present utility model;

[0025] Reference numerals:

[0026] Computer embroidery machine head 100,

[0027] Connecting rod assembly 10, first bearing 11, first outer ring 111, first roller 112, first shaft 113;

[0028] The second bearing member 12, the connecting shaft 13, the connecting rod 14, the first mounting portion 141, the second mounting portion 142, and the third mounting portion 143;

[0029] Cam assembly 20, eccentric cam 21, crank 22, first clamp structure 221;

[0030] Needle bar 30, driving member 40, driving block 41, driving connecting rod 42;

[0031] Pressing block 50 and casing 60. DETAILED DESCRIPTION

[0032] The following describes embodiments of the present invention in detail. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended only to explain the present invention and are not to be construed as limiting the present invention.

[0033] The disclosure below provides many different embodiments or examples for realizing different structures of the present invention. In order to simplify the disclosure of the present invention, the components and settings of specific examples are described below. Of course, they are merely examples and are not intended to limit the present invention. In addition, the present invention may repeat reference numbers and / or letters in different examples. This repetition is for the purpose of simplicity and clarity and does not in itself indicate the relationship between the various embodiments and / or settings discussed. In addition, the present invention provides examples of various specific processes and materials, but a person of ordinary skill in the art will appreciate the applicability of other processes and / or the use of other materials.

[0034] The following is combined with Figure 1-5 , describing the first aspect of the computer embroidery machine head 100 provided by an embodiment of the present utility model, including a housing 60, a cam assembly 20 and a connecting rod assembly 10.

[0035] The cam assembly 20 and the connecting rod assembly 10 are located within the housing 60. The cam assembly 20 includes an eccentric cam 21 and a crank 22 connected to the eccentric cam 21. The connecting rod assembly 10 includes a connecting rod 14 and a first bearing 11. A first mounting portion 141 is provided at one end of the connecting rod 14. The first bearing 11 is mounted on the first mounting portion 141. The connecting rod 14 is connected to the housing 60 via the first bearing 11.

[0036] The first bearing member 11 includes a first outer ring 111 , a first shaft 113 and a first roller 112 located between the first outer ring 111 and the first shaft 113 . The first outer ring 111 and the first shaft 113 are coaxially arranged, and both ends of the first shaft 113 protrude from the first outer ring 111 .

[0037] It should be noted that if Figure 5 As shown, compared with the prior art, the first bearing member 11 of this embodiment does not need to be provided with an inner ring, so the installation gap between the first shaft body 113 and its inner ring in the prior art can be eliminated, which helps to reduce the vibration of the connecting rod 14 caused by the high-speed movement of the cam assembly 20, thereby suppressing the wear of the connecting rod 14 and extending its service life.

[0038] The connecting rod 14 is connected to the housing 60 via the first bearing member 11.

[0039] like Figure 4 As shown, the head 100 of the computer embroidery machine further includes two pressing blocks 50. The pressing blocks 50 are provided with arcuate grooves that match the ends of the first shaft 113. The ends of the first shaft 113 are disposed in the arcuate grooves of the pressing blocks 50. The two pressing blocks 50 correspond to the two ends of the first shaft 113, respectively, and the pressing blocks 50 are connected to the inner surface of the housing 60.

[0040] With this arrangement, the end of the connecting rod 14 provided with the first mounting portion 141 is subjected to forces on both sides in the thickness direction of the connecting rod 14. The end of the connecting rod 14 provided with the first mounting portion 141 is subjected to better force, which helps to eliminate vibration of the connecting rod 14 under high-speed movement.

[0041] Preferably, the first outer ring 111 is located in the middle of the first shaft 113. Considering practical applications, the distance from one end of the first shaft 113 to the first outer ring 111 and the distance from the other end of the first shaft 113 to the first outer ring 111 can be roughly equal, and there can be a slight error between the two distances.

[0042] According to some embodiments of the present invention, Figure 4 As shown, the connecting rod assembly 10 further includes a second bearing member 12 , a second mounting portion 142 is provided on a portion of the connecting rod 14 away from its end, the second bearing member 12 is mounted on the second mounting portion 142 , and the crank 22 is connected to the connecting rod 14 via the second bearing member 12 .

[0043] The second bearing component 12 includes a second outer ring, a second shaft, and a second roller located between the second outer ring and the second shaft. The second outer ring and the second shaft are coaxially arranged, and one end of the second shaft protrudes from the second outer ring.

[0044] It should be noted that the structure of the second bearing component 12 is substantially the same as that of the first bearing component 11 .

[0045] The crank 22 is connected to the connecting rod 14 through the second bearing member 12. In detail:

[0046] like Figure 1-4 As shown, a first clamp structure 221 is provided at the end where the crank 22 is connected to the connecting rod 14, and the end of the second shaft protruding from the second outer ring is inserted into the first clamp structure 221. At the same time, the first clamp structure 221 is firmly locked by fasteners (bolts, screws), further ensuring that the crank 22 and the connecting rod 14 are stably connected together under high-speed movement.

[0047] According to some embodiments of the present invention, the head 100 of the computer embroidery machine further includes a needle bar 30 and a driving member 40 sleeved on the needle bar 30 .

[0048] The connecting rod assembly 10 further includes a connecting shaft 13. A third mounting portion 143 is provided at the other end of the connecting rod 14. The connecting shaft 13 is mounted on the third mounting portion 143. The driving member 40 is connected to the connecting rod 14 via the connecting shaft 13.

[0049] like Figure 1-4 As shown, the third mounting portion 143 is configured as a second clamping structure. The second clamping structure is provided at the end of the connecting rod 14 where it connects to the connecting shaft 13. The driver 40 includes a driving block 41 and a driving connecting rod 42, one end of which is hingedly connected to the driving block 41. One end of the connecting shaft 13 is inserted into the second clamping structure, which is securely locked in place using fasteners (bolts or screws). The other end of the driving connecting rod 42 is hingedly connected to the other end of the connecting shaft 13.

[0050] Such an arrangement can further ensure that the driving member 40 and the connecting rod 14 are stably connected together under high-speed movement.

[0051] The driving block 41 is driven by the connecting rod 14 to reciprocate along the direction C1 on the needle rod 30.

[0052] The computer embroidery machine of the second aspect provided by the embodiment of the present invention includes the head 100 of the computer embroidery machine of the first aspect, and the computer embroidery machine has the advantages of the head 100 of the computer embroidery machine described above.

[0053] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like to indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation to the present invention.

[0054] In the description of the present invention, "first feature" and "second feature" may include one or more such features.

[0055] In the description of the present invention, “plurality” means two or more.

[0056] In the description of the present invention, a first feature being “above” or “below” a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact via another feature therebetween.

[0057] In the description of the present invention, a first feature “above”, “above” and “above” a second feature includes the first feature being directly above and obliquely above the second feature, or simply means that the first feature is horizontally higher than the second feature.

[0058] Throughout this specification, reference to terms such as "one embodiment," "some embodiments," "illustrative embodiments," "examples," "specific examples," and "some examples" means that the specific features, structures, materials, or characteristics described in conjunction with that embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the illustrative use of these terms does not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

[0059] Although the embodiments of the present invention have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and purpose of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. A head of a computer embroidery machine, characterized in that: include: chassis; a cam assembly located in the housing, the cam assembly comprising an eccentric cam and a crank connected to the eccentric cam; A connecting rod assembly is located in the housing, the connecting rod assembly includes a connecting rod and a first bearing component, one end of the connecting rod is provided with a first mounting portion, the first bearing component is mounted on the first mounting portion, and the connecting rod is connected to the housing through the first bearing component. The first bearing component includes a first outer ring, a first shaft, and a first roller located between the first outer ring and the first shaft. The first outer ring and the first shaft are coaxially arranged, and both ends of the first shaft protrude from the first outer ring.

2. The head of the computer embroidery machine according to claim 1, characterized in that: The connecting rod assembly further includes a second bearing member, a second mounting portion is provided on a portion of the connecting rod away from its end, the second bearing member is mounted on the second mounting portion, and the crank is connected to the connecting rod via the second bearing member. The second bearing component includes a second outer ring, a second shaft, and a second roller located between the second outer ring and the second shaft. The second outer ring and the second shaft are coaxially arranged, and one end of the second shaft protrudes from the second outer ring.

3. The head of the computer embroidery machine according to claim 1, characterized in that: The first outer ring is located in the middle of the first shaft.

4. The head of the computer embroidery machine according to claim 3, characterized in that: It also includes two pressing blocks, which are respectively arranged at both ends of the first shaft body. The pressing blocks are provided with arc-shaped grooves, and the arc-shaped grooves match the first shaft body.

5. The head of the computer embroidery machine according to claim 1, characterized in that: The end portion of the crank connected to the connecting rod is provided with a first clamp structure.

6. The head of the computer embroidery machine according to claim 1, characterized in that: It also includes a needle bar and a driving member sleeved on the needle bar. The connecting rod assembly further includes a connecting shaft. The other end of the connecting rod is provided with a third mounting portion. The connecting shaft is mounted on the third mounting portion. The driving member is connected to the connecting rod via the connecting shaft.

7. The head of the computer embroidery machine according to claim 6, characterized in that: The third mounting portion is a second clamping hoop structure, and the end portion of the connecting rod connected to the connecting shaft is provided with a second clamping hoop structure.

8. A computer embroidery machine, characterized in that: A head of a computer embroidery machine comprising any one of claims 1 to 7.

Images