Elliptical-track same-position opposite-needling pre-needling machine

Abstract

The utility model relates to an elliptical orbit same-position opposite-needling pre-needling machine which comprises a first servo motor, a second servo motor and a double-shaft conjugate eccentric connecting rod driving mechanism. The second servo motor sets a phase angle theta relative to the first servo motor; an upper sliding groove is formed in the upper needle plate guide seat, and an upper guide bearing located on the upper hinged shaft is arranged in the upper sliding groove. A lower sliding groove is formed in the lower needle plate guide seat, and a lower guide bearing located on the lower hinged shaft is arranged in the lower sliding groove. Through the phase angle difference between the first eccentric connecting rod assembly and the second eccentric connecting rod assembly, the upper needle plate beam and the lower needle plate beam swing around the center lines of the upper guide bearing and the lower guide bearing while moving up and down, and therefore the purpose of oval track co-location opposite thorn is achieved. And the horizontal movement in the process of acting on the fiber web layer is consistent with the conveying direction of the fiber web layer, so that the drafting of the traction roller to the material is reduced, and the product quality is ensured.

Description

Technical Field

[0001] The utility model relates to a needling machine, in particular to an elliptical track co-positioned needling pre-needling machine. Background Art

[0002] In the needle punching production process, pre-needling of thick and heavy products, especially super thick and heavy products, is always a problem. Super thick and heavy products are conveyed by the feeding roller on the feeding side and the traction roller on the output side during the pre-needling process. During the conveying process of the pre-needling products by the feeding roller and the output roller, the fiber web is excessively deformed and stretched due to the drafting effect, and the needle marks are coarse, which affects the product quality of the pre-needling products. Utility Model Content

[0003] The utility model aims to solve one of the technical problems in the related art at least to a certain extent. To this end, the utility model proposes an elliptical track co-positioned pre-needling machine.

[0004] The utility model solves the technical problem by adopting the following technical solution: an elliptical trajectory co-positioned needle pre-needling machine, comprising a first servo motor, a second servo motor, a double-axis conjugate eccentric connecting rod driving mechanism, an upper needle plate beam, a lower needle plate beam, an upper needle plate guide seat and a lower needle plate guide seat; the second servo motor sets a phase angle θ relative to the first servo motor; the upper needle plate beam is located at the upper part of the lower needle plate beam, and the upper needle plate beam and the lower needle plate beam are arranged opposite to each other;

[0005] The dual-axis conjugate eccentric connecting rod driving mechanism comprises a first main shaft, a second main shaft, a first eccentric connecting rod assembly and a second eccentric connecting rod assembly; the first servo motor is connected to the first main shaft, the first main shaft is connected to the first eccentric connecting rod assembly, the second servo motor is connected to the second main shaft, and the second main shaft is connected to the second eccentric connecting rod assembly;

[0006] The first eccentric connecting rod assembly is connected to the lower needle plate beam via a lower hinge shaft, and the second eccentric connecting rod assembly is connected to the upper needle plate beam via an upper hinge shaft. The upper needle plate beam is provided with an upper needle plate, and the lower needle plate beam is provided with a lower needle plate. The upper needle plate and the lower needle plate are symmetrically offset along the needle plate center line C; the upper needle plate is provided with an upper needle needle, and the lower needle plate is provided with a lower needle needle.

[0007] Upper needle plate guide seats are respectively arranged on the frames at both ends of the upper needle plate beam, an upper slide groove is arranged in the upper needle plate guide seat, and an upper guide bearing located on the upper hinge shaft is arranged in the upper slide groove;

[0008] A lower needle plate guide seat is respectively arranged on the frames at both ends of the lower needle plate beam, a lower sliding groove is arranged on the lower needle plate guide seat, and a lower guide bearing located on the lower hinge shaft is arranged in the lower sliding groove.

[0009] In a preferred embodiment of the utility model, the upper needle plate beam comprises an aluminum alloy main beam, a rectangular tube auxiliary beam and a wing plate; the top end of the rectangular tube auxiliary beam is connected to the frame, the bottom end of the rectangular tube auxiliary beam is provided with an aluminum alloy main beam, and the two ends of the aluminum alloy main beam are respectively provided with wing plates, and the wing plates are connected to the second eccentric connecting rod assembly through an upper hinge shaft;

[0010] The lower needle plate beam and the upper needle plate beam have the same structure, and the upper needle plate beam and the lower needle plate beam are symmetrically arranged up and down; the wing plate in the lower needle plate beam is connected to the first eccentric connecting rod assembly through a lower hinge shaft.

[0011] In a preferred embodiment of the present invention, the upper needle arrangement structure of the upper needle plate is the same as the lower needle arrangement structure of the lower needle plate, and the upper needle arrangement section on the upper needle plate is offset to one side along the needle plate center line C, and the lower needle arrangement section on the lower needle plate is offset to the other side along the needle plate center line C.

[0012] In a preferred embodiment of the utility model, it also includes an upper stripping support mesh plate and a lower stripping support mesh plate, the upper stripping support mesh plate is located at the lower part of the upper needle, and the lower stripping support mesh plate is located at the upper part of the lower needle. The upper stripping support mesh plate and the lower stripping support mesh plate have the same structure and are symmetrically arranged, and the upper stripping support mesh plate includes an inclined plate and a flat plate, the flat plate is located on the output side, and the inclined plate is located on the feeding side, and a trumpet-shaped opening is formed between the two inclined plates between the upper stripping support mesh plate and the lower stripping support mesh plate, which is larger near the feeding side and smaller near the output side.

[0013] In a preferred embodiment of the present invention, the first eccentric connecting rod assembly and the second eccentric connecting rod assembly are keyed onto the first main shaft and the second main shaft respectively in an eccentrically symmetrical manner.

[0014] In a preferred embodiment of the present invention, the upper slide groove and the lower slide groove are coaxially arranged along a symmetrical midline of the upper slide groove and the lower slide groove.

[0015] The beneficial effect of the utility model is that the upper and lower guide bearings of the upper and lower hinge shafts are limited and guided by the upper and lower slide grooves. When the first servo motor and the second servo motor have a phase angle, the first eccentric connecting rod assembly and the second eccentric connecting rod assembly also have a phase angle difference. Finally, the upper and lower needle plate beams swing around the center lines of the upper and lower guide bearings while moving up and down, thereby achieving the purpose of elliptical trajectory co-positioning, that is, the horizontal movement in the process of acting on the fiber web layer is consistent with the transmission direction of the fiber web layer, reducing the stretching of the material by the traction roller, avoiding thick stitches, and helping to improve the product appearance quality and ensure product quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the structure of the utility model Figure 1 ;

[0017] Figure 2 This is a schematic diagram of the structure of the utility model Figure 2 ;

[0018] Figure 3 This is a schematic diagram of the structure of the upper and lower guide bearings and the upper and lower needle plate guide seats of the utility model;

[0019] Figure 4 It is the principle diagram of the utility model;

[0020] In the figure: upper needle plate beam 1; aluminum alloy main beam 101; rectangular tube auxiliary beam 102; wing plate 103; lower needle plate beam 2; upper needle plate guide seat 3; upper slide groove 301; lower needle plate guide seat 4; lower slide groove 401; first main shaft 5; second main shaft 6; first eccentric connecting rod assembly 7; second eccentric connecting rod assembly 8; upper hinge shaft 9; upper guide bearing 901; lower hinge shaft 10; lower guide bearing 1001; upper needle plate 11; lower needle plate 12; upper needle needle 13; lower needle needle 14; frame 15; upper stripping support mesh plate 16; inclined plate 1601; flat plate 1602; lower stripping support mesh plate 17. DETAILED DESCRIPTION

[0021] The embodiments of the present invention are described in detail below, and 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 only used to explain the present invention, and cannot be understood as limiting the present invention.

[0022] In the description of the present utility model, 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" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present utility model. In addition, the terms "first" and "second" are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, the meaning of "multiple" is two or more, unless otherwise clearly and specifically defined.

[0023] like Figures 1 to 4The elliptical trajectory co-positioned needle pre-needling machine shown in the figure comprises a first servo motor, a second servo motor, a double-axis conjugate eccentric connecting rod driving mechanism, an upper needle plate beam 1, a lower needle plate beam 2, an upper needle plate guide seat 3 and a lower needle plate guide seat 4; the second servo motor sets a phase angle θ relative to the first servo motor; the upper needle plate beam 1 is located at the upper part of the lower needle plate beam 2, and the upper needle plate beam 1 and the lower needle plate beam 2 are arranged opposite to each other;

[0024] The double-axis conjugate eccentric connecting rod drive mechanism comprises a first main shaft 5, a second main shaft 6, a first eccentric connecting rod assembly 7 and a second eccentric connecting rod assembly 8; the first servo motor is connected to the first main shaft 5, the first main shaft 5 is connected to the first eccentric connecting rod assembly 7, the second servo motor is connected to the second main shaft 6, and the second main shaft 6 is connected to the second eccentric connecting rod assembly 8; as a preferred embodiment, the first eccentric connecting rod assembly 7 and the second eccentric connecting rod assembly 8 in the present application are respectively keyed on the first main shaft 5 and the second main shaft 6 in an eccentrically symmetrical manner;

[0025] The first eccentric link assembly 7 is connected to the lower needle plate beam 2 via a lower hinge shaft 10, and the second eccentric link assembly 8 is connected to the upper needle plate beam 1 via an upper hinge shaft 9. The upper needle plate beam 1 is provided with an upper needle plate 11, and the lower needle plate beam 2 is provided with a lower needle plate 12. The upper needle plate 11 and the lower needle plate 12 are symmetrically offset along the needle plate center line C; the upper needle plate 11 is provided with an upper needle 13, and the lower needle plate 12 is provided with a lower needle 14;

[0026] An upper needle plate guide seat 3 is provided on the frames at both ends of the upper needle plate beam 1, an upper slide groove 301 is provided in the upper needle plate guide seat 3, and an upper guide bearing 901 located on the upper hinge shaft 9 is provided in the upper slide groove 301;

[0027] A lower needle plate guide seat 4 is respectively disposed on the frames at both ends of the lower needle plate beam 2 , and a lower sliding groove 401 is disposed on the lower needle plate guide seat 4 , and a lower guide bearing 1001 located on the lower hinge shaft 10 is disposed in the lower sliding groove 401 .

[0028] When the elliptical trajectory co-positioned pre-needling machine of the present application is working, the control console first sets the phase angle θ of the second servo motor relative to the first servo motor, and the first servo motor and the second servo motor respectively transmit power to the first spindle 5 and the second spindle 6 accurately and synchronously, so that the second spindle 6 has a phase angle θ relative to the first spindle 5, and then the second eccentric connecting rod assembly 8 and the first eccentric connecting rod assembly 7 respectively drive the upper needle plate beam 1 and the lower needle plate beam 2 to reciprocate up and down, thereby driving the upper and lower needles to perform reciprocating needle motions up and down, and since the upper needle plate beam 1 is connected to the second eccentric connecting rod assembly 8 through the upper hinge shaft 9, the upper guide bearing 901 on the upper hinge shaft 9 is arranged in the upper slide groove 301, and the lower needle plate beam 2 is connected to the first eccentric connecting rod assembly 8 through the lower hinge shaft 10. The connecting rod assembly 7 and the lower guide bearing 1001 on the lower hinge shaft 10 are arranged in the lower sliding groove 401, and the upper and lower guide bearings of the upper and lower hinge shafts are limited and guided by the upper and lower sliding grooves. When the first servo motor and the second servo motor have a phase angle, the first eccentric connecting rod assembly 7 and the second eccentric connecting rod assembly 8 also have a phase angle difference. Finally, the upper and lower needle plate beams swing around the center lines of the upper and lower guide bearings while moving up and down, thereby achieving the purpose of elliptical trajectory co-positioning and piercing; the horizontal movement in the process of acting on the fiber mesh layer is consistent with the transmission direction of the fiber mesh layer, which reduces the stretching of the material by the traction roller, avoids thick stitches, helps to improve the product appearance quality, and ensures product quality.

[0029] As a preferred embodiment, the upper needle plate beam 1 includes an aluminum alloy main beam 101, a rectangular tube auxiliary beam 102 and a wing plate 103; the top of the rectangular tube auxiliary beam 102 is connected to the frame 15, the bottom of the rectangular tube auxiliary beam 102 is provided with an aluminum alloy main beam 101, and both ends of the aluminum alloy main beam 101 are respectively provided with wing plates 103, and the wing plate 103 is connected to the second eccentric connecting rod assembly 8 through an upper hinge shaft 9;

[0030] The lower needle plate beam 2 and the upper needle plate beam have the same structure, and the upper needle plate beam 1 and the lower needle plate beam 2 are symmetrically arranged in the upper and lower parts; the wing plate in the lower needle plate beam 2 is connected to the first eccentric connecting rod assembly 7 through the lower hinge shaft 10.

[0031] Since the phase angle of the second servo motor is set relative to the first servo motor, the first servo motor drives the first spindle and then drives the first eccentric connecting rod assembly 7 to move, and the second servo motor drives the second spindle and then drives the second eccentric connecting rod assembly 8 to move. After the first eccentric connecting rod assembly 7 is connected to the wing plate of the lower needle plate beam through the lower hinge shaft 10, and the second eccentric connecting rod assembly 8 is connected to the wing plate of the upper needle plate beam through the upper hinge shaft 9, the second eccentric connecting rod assembly drives the upper needle plate with a phase difference relative to the first eccentric connecting rod assembly driving the lower needle plate. Combined with the limiting and guiding effect of the upper and lower guide bearings of the upper and lower hinge shafts by the upper and lower slide grooves, the upper and lower needle plates produce a small swing along the upper and lower guide bearings while moving up and down, and finally produce an elliptical effect of acupuncture, so that the horizontal movement in the process of acting on the fiber web layer is consistent with the transmission direction of the fiber web layer, reducing the drafting of the material by the traction roller, avoiding thick needle marks, helping to improve the product appearance quality, and ensuring product quality.

[0032] As a preferred embodiment, the upper needle arrangement structure of the upper needle plate is the same as the lower needle arrangement structure of the lower needle plate, and the upper needle arrangement section on the upper needle plate is offset to one side along the needle plate center line C, and the lower needle arrangement section on the lower needle plate is offset to the other side along the needle plate center line C, so that the upper and lower needles will not collide during the interlaced movement, thereby ensuring the safety and stability of the upper and lower needles during acupuncture.

[0033] As a preferred embodiment, it also includes an upper stripping support mesh plate 16 and a lower stripping support mesh plate 17, the upper stripping support mesh plate 16 is located at the lower part of the upper needle 13, and the lower stripping support mesh plate 17 is located at the upper part of the lower needle 14. The upper stripping support mesh plate 16 and the lower stripping support mesh plate 17 have the same structure and are symmetrically arranged. The upper stripping support mesh plate 16 includes an inclined plate 1601 and a flat plate 1602, the flat plate 1602 is located on the output side, and the inclined plate 1601 is located on the feeding side. A trumpet-shaped opening is formed between the two inclined plates between the upper stripping support mesh plate and the lower stripping support mesh plate, which is larger near the feeding side and smaller near the output side. This structure increases the opening distance of the upper and lower stripping support mesh plates on the feeding side, which is beneficial to the feeding of thick fiber layers, improves the efficiency of feeding the bulky and thick fiber web into the pre-needling machine, and improves the production efficiency of the elliptical trajectory co-positioned needle pre-needling machine.

[0034] As a preferred embodiment, the upper slide groove 01 and the lower slide groove 401 are coaxially arranged with the symmetrical midlines of the upper slide groove 301 and the lower slide groove 401; the upper and lower guide bearings are used to limit and guide the upper and lower hinge shafts, so that the upper and lower needle plates can swing slightly along the upper and lower guide bearings while moving up and down, ultimately producing an elliptical effect of acupuncture.

[0035] In the description of this specification, the description with reference to the terms "one embodiment", "certain embodiments", "illustrative embodiments", "examples", "specific examples" or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiments or examples are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.

[0036] In summary, although the present invention has been disclosed as above in terms of preferred embodiments, the above preferred embodiments are not intended to limit the present invention. A person skilled in the art may make various changes and modifications without departing from the spirit and scope of the present invention. Therefore, the scope of protection of the present invention shall be based on the scope defined in the claims.

Claims

1. An elliptical trajectory co-positioned pre-needling machine, It is characterized in that It includes a first servo motor, a second servo motor, a double-axis conjugate eccentric connecting rod driving mechanism, an upper needle plate beam, a lower needle plate beam, an upper needle plate guide seat and a lower needle plate guide seat; the second servo motor sets a phase angle θ relative to the first servo motor; the upper needle plate beam is located at the upper part of the lower needle plate beam, and the upper needle plate beam and the lower needle plate beam are arranged opposite to each other; The dual-axis conjugate eccentric connecting rod driving mechanism comprises a first main shaft, a second main shaft, a first eccentric connecting rod assembly and a second eccentric connecting rod assembly; the first servo motor is connected to the first main shaft, the first main shaft is connected to the first eccentric connecting rod assembly, the second servo motor is connected to the second main shaft, and the second main shaft is connected to the second eccentric connecting rod assembly; The first eccentric connecting rod assembly is connected to the lower needle plate beam via a lower hinge shaft, the second eccentric connecting rod assembly is connected to the upper needle plate beam via an upper hinge shaft, the upper needle plate beam is provided with an upper needle plate, the lower needle plate beam is provided with a lower needle plate, the upper needle plate is provided with an upper needle needle, and the lower needle plate is provided with a lower needle needle; Upper needle plate guide seats are respectively arranged on the frames at both ends of the upper needle plate beam, an upper slide groove is arranged in the upper needle plate guide seat, and an upper guide bearing located on the upper hinge shaft is arranged in the upper slide groove; A lower needle plate guide seat is respectively arranged on the frames at both ends of the lower needle plate beam, a lower sliding groove is arranged on the lower needle plate guide seat, and a lower guide bearing located on the lower hinge shaft is arranged in the lower sliding groove.

2. The elliptical trajectory co-positioned pre-needling machine according to claim 1, It is characterized in that The upper needle plate beam comprises an aluminum alloy main beam, a rectangular tube auxiliary beam and a wing plate; the top end of the rectangular tube auxiliary beam is connected to the frame, the bottom end of the rectangular tube auxiliary beam is provided with an aluminum alloy main beam, and both ends of the aluminum alloy main beam are respectively provided with wing plates, and the wing plates are connected to the second eccentric connecting rod assembly through an upper hinge shaft; The lower needle plate beam and the upper needle plate beam have the same structure, and the upper needle plate beam and the lower needle plate beam are symmetrically arranged up and down; the wing plate in the lower needle plate beam is connected to the first eccentric connecting rod assembly through a lower hinge shaft.

3. The elliptical trajectory co-positioned pre-needling machine according to claim 1, It is characterized in that The upper needle arrangement structure of the upper needle plate is the same as the lower needle arrangement structure of the lower needle plate, and the upper needle arrangement section on the upper needle plate is offset to one side along the needle plate center line C, and the lower needle arrangement section on the lower needle plate is offset to the other side along the needle plate center line C.

4. The elliptical trajectory co-positioned pre-needling machine according to claim 2, It is characterized in that It also includes an upper stripping support mesh plate and a lower stripping support mesh plate, the upper stripping support mesh plate is located at the lower part of the upper needle, and the lower stripping support mesh plate is located at the upper part of the lower needle. The upper stripping support mesh plate and the lower stripping support mesh plate have the same structure and are symmetrically arranged, and the upper stripping support mesh plate includes an inclined plate and a flat plate, the flat plate is located on the output side, and the inclined plate is located on the feed side, and a trumpet-shaped opening is formed between the two inclined plates between the upper stripping support mesh plate and the lower stripping support mesh plate, which is larger near the feed side and smaller near the output side.

5. The elliptical trajectory co-positioned pre-needling machine according to claim 1, It is characterized in that The first eccentric connecting rod assembly and the second eccentric connecting rod assembly are keyed on the first main shaft and the second main shaft respectively in an eccentrically symmetrical manner.

6. The elliptical trajectory co-positioned pre-needling machine according to any one of claims 1 to 4, It is characterized in that The upper slide groove and the lower slide groove are coaxially arranged along the symmetry center line of the upper slide groove and the lower slide groove.

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