Zipper feeding dot printing device

Abstract

The utility model belongs to the technical field of zipper production automation equipment, and particularly relates to a zipper feeding point printing device which comprises a point printing translation mechanism (1), a zipper translation mechanism (2) arranged on the point printing translation mechanism (1) and a pressing mechanism (3) matched with the zipper translation mechanism to drive a zipper to move. The dot printing mechanism (4) is arranged on the dot printing translation mechanism and is positioned in the next process of the zipper translation mechanism; the spot printing mechanism comprises an ultrasonic spot printing welding head (409); marking is carried out in an ultrasonic dot printing mode, after the two dot printing pressure heads make contact with the ultrasonic dot printing welding head, marks are marked on the edges of cloth belts on the two sides of the zipper passing through the position between the two dot printing pressure heads and the ultrasonic dot printing welding head, and the marks are narrow lines and can accurately correspond to marks of products on the zipper. Therefore, the mark made by the dot printing device is accurate in position, and subsequent use of the zipper is facilitated.

Description

Technical Field

[0001] The utility model relates to the technical field of automatic zipper production equipment, in particular to a device for marking a zipper according to the requirements of the finished zipper product to be used subsequently on an automatic zipper threading machine. Background Art

[0002] An automatic zipper threading machine refers to a device that installs a slider on one section of a zipper to produce a finished zipper product. During the process of the automatic zipper threading machine processing the finished zipper product, first, a roll of zipper is loaded, that is, the zipper is an uncut long section. Before installing the slider on the long section of the zipper, it is necessary to cut the long section of the zipper into several sections according to the requirements of the products using the zipper, such as clothes, luggage, etc., and then thread the zipper to obtain the finished zipper; the zipper here refers to a semi-finished product without a slider installed; the zipper mentioned here includes the cloth tapes on both sides and the meshing teeth on both sides in the middle; and the slider may be single or double (double slider). In order to adapt to the subsequent products with zippers installed, for example, the zipper is to be used on a luggage, and marks will be made at different positions at the opening where the zipper is installed on the luggage. Since the length of the position where the zipper is installed is relatively long, there are several marking positions, so marks also need to be made at several positions on the zipper; currently, an electrically heated structure is generally used for marking, and there are the following problems: 1. The marking is obtained by heating, so the marking itself is relatively large and the dot printing is not clear; 2. Because the marking itself is relatively large, the position is not accurate enough and does not correspond well to the subsequent products using the zipper. Content of the Utility Model

[0003] In order to overcome the deficiencies of the prior art, the purpose of the utility model is to provide a zipper feeding and dot printing device.

[0004] The technical solution is as follows: A zipper feeding and dot printing device includes a dot printing translation mechanism, a zipper translation mechanism provided thereon, a pressing mechanism that cooperates with the zipper translation mechanism to drive the zipper to move, and a dot printing mechanism provided on the dot printing translation mechanism and located in the next process of the zipper translation mechanism; the dot printing mechanism includes an ultrasonic dot printing welding head.

[0005] Preferably, the dot printing translation mechanism includes two mutually parallel support bottom plates, two dot printing translation guide rails respectively provided on their upper surfaces, two groups of dot printing sliders respectively movably provided on the dot printing translation guide rails, a mounting plate whose bottom surface is fixedly connected to the two groups of dot printing sliders, a dot printing translation cylinder provided on the bottom surface of the mounting plate, and a translation cylinder fixing seat whose upper end is connected to the end of the telescopic rod of the dot printing translation cylinder; a perforation is provided in the mounting plate.

[0006] Preferably, the zipper translation mechanism includes a first mounting bracket disposed on the upper surface of the mounting plate, a zipper translation power assembly, and a zipper translation assembly; the zipper translation power assembly is connected to the zipper translation assembly; the first mounting bracket includes two first mounting vertical plates that are parallel to each other and whose lower ends are perpendicular to the upper surface of the mounting plate.

[0007] Preferably, the zipper translation power assembly includes a zipper translation motor mounted on the upper surface of the mounting plate, a translation driving wheel connected to its output shaft, a translation driven wheel, a translation synchronous belt for connecting the translation driving wheel and the translation driven wheel, a translation driven shaft perpendicular to the two first mounting vertical plates, and a feeding driving wheel sleeved on the translation driven shaft and located between the two first mounting vertical plates; the translation driven wheel is sleeved on one end of the translation driven shaft and located outside one of the first mounting vertical plates.

[0008] Preferably, the zipper translation assembly includes a translation support base disposed on the upper surface of the mounting plate, a feeding platform bottom plate disposed on its upper surface, a feeding platform cover plate disposed on its upper surface, a lower discharge plate, and a discharge cover plate disposed on its upper surface; the lower discharge plate is fixedly connected to the two first mounting vertical plates and is located above the feeding driving wheel; a welding head perforation is provided in the feeding platform bottom plate; after the zipper passes between the feeding platform bottom plate and the feeding platform cover plate, it is then sent out after passing between the feeding platform cover plate and the lower discharge plate.

[0009] Preferably, the inner side surface of the lower discharge plate in contact with the feeding driving wheel is an arc surface having the same shape as the feeding driving wheel; the inner side surface of the discharge cover plate is an arc surface; bearings are provided at both ends of the translation driven shaft and are respectively located inside the two first mounting vertical plates.

[0010] Preferably, two upper pressing pieces are provided on the outer surface of the discharge cover plate and are disposed outside the space between the two first mounting vertical plates and along the moving direction of the zipper; a lower pressing piece parallel to the upper pressing piece is provided on the lower surface of the front end of the discharge cover plate and the upper surface of the front end of the lower discharge plate respectively, and the zipper passes through the gap between the two lower pressing pieces.

[0011] Preferably, the pressing mechanism includes an upper fixing plate installed at the upper ends of two first mounting vertical plates, a pressing cylinder disposed on its upper surface, a lower fixing plate located between the two first mounting vertical plates and below the upper fixing plate and connected to the lower end of the telescopic rod of the pressing cylinder, two mutually parallel moving bearing seats disposed on the bottom surface of the lower fixing plate, an upper driven shaft perpendicular to and movably connected to the two moving bearing seats at both ends, a feeding driven pressing wheel located between the two moving bearing seats and sleeved on the upper driven shaft, and two mutually parallel pressing guide rods vertically passing through the upper fixing plate at the upper ends and fixedly connected to the upper surface of the lower fixing plate at the lower ends; longitudinal guide grooves are provided on the inner sides of the two first mounting vertical plates, the two moving bearing seats are respectively movably disposed in the two longitudinal guide grooves, and bearings located in the two moving bearing seats are provided at both ends of the upper driven shaft.

[0012] Preferably, the dot printing mechanism includes two mutually parallel dot printing fixing columns disposed on the upper surface of the mounting plate, a dot printing cylinder fixing plate disposed at and fixedly connected to their upper ends, a dot printing cylinder disposed thereon, a marking adapter plate disposed below the dot printing cylinder fixing plate and fixedly connected to the lower end of the telescopic rod of the dot printing cylinder, two dot printing pins vertically passing through the marking adapter plate at the upper segments and located below it at the lower segments, a die pressing adjustment fixing seat fixedly connected to the lower segments of the two dot printing pins, two buffer springs respectively sleeved on the two dot printing pins and located between the marking adapter plate and the die pressing adjustment fixing seat, two dot printing heads disposed on the lower surface of the die pressing adjustment fixing seat, and an ultrasonic dot printing head disposed directly below the two dot printing heads; the zipper passes between the dot printing heads and the ultrasonic dot printing head; the upper and lower ends of the buffer spring are respectively in contact with the lower surface of the marking adapter plate and the upper surface of the die pressing adjustment fixing seat; the marking adapter plate can move up and down relative to the two dot printing pins.

[0013] Preferably, it further includes two dot printing linear bushings respectively disposed inside the dot printing cylinder fixing plate and on both sides of the dot printing cylinder, two dot printing guide posts respectively passing through the two dot printing linear bushings and perpendicular to the dot printing cylinder fixing plate, and the upper surface of the marking adapter plate is fixedly connected to the lower ends of the dot printing guide posts; a pressing head groove with a trapezoidal cross-section is provided inside the lower surface of the die pressing adjustment fixing seat, and a pressing head joint with a shape consistent with that of the pressing head groove is provided on the dot printing head; it further includes a strip for fixing the dot printing head located between one inclined surface of the pressing head groove and one inclined surface of the pressing head joint.

[0014] Technical effect: Setting the zipper feeding and dot printing device of the present invention on an automatic zipper threading machine has the following advantages: Marking is carried out by means of ultrasonic dot printing. After the two dot printing heads come into contact with the ultrasonic dot printing head, marks are made on the edges of the two side tapes of the zipper passing between them. The marks are a narrow line, which can accurately correspond to the marks of the products using the zipper; therefore, the marks made by using the dot printing device of the present invention are accurate in position and facilitate the subsequent use of the zipper. Brief Description of the Drawings

[0015] Figure 1 is a perspective view of an embodiment of the present utility model;

[0016] Figure 2 is another perspective view of an embodiment of the present utility model;

[0017] Figure 3 is another perspective view of an embodiment of the present utility model;

[0018] Figure 4 is an exploded view of an embodiment of the present utility model;

[0019] Figure 5 is a perspective view of the dot printing mechanism of an embodiment of the present utility model;

[0020] Figure 6 is another perspective view of the dot printing mechanism of an embodiment of the present utility model;

[0021] Figure 7 is a perspective view of the zipper translation and pressing mechanism of an embodiment of the present utility model;

[0022] Figure 8 is another perspective view of the zipper translation and pressing mechanism of an embodiment of the present utility model;

[0023] Figure 9 is an exploded view of the zipper translation and pressing mechanism of an embodiment of the present utility model.

[0024] Reference numerals: dot printing translation mechanism - 1, support base plate - 101, dot printing translation guide rail - 102, dot printing slider - 103, mounting plate - 104, perforation - 104a, dot printing translation cylinder - 105, translation cylinder fixing seat - 106, zipper translation mechanism - 2, first mounting bracket - 201, first mounting vertical plate - 201a, longitudinal guide groove - 201b, zipper translation power assembly - 202, translation driving wheel - 202a, translation driven wheel - 202b, translation synchronous belt - 202c, translation driven shaft - 202d, feeding driving wheel - 202e, zipper translation motor - 202f, zipper translation assembly - 203, translation support seat - 203a, feeding platform base plate - 203b, feeding platform cover plate - 203c, lower discharge plate - 203d, discharge cover plate - 203e, welding head perforation - 203f, pressing mechanism - 3, upper fixing plate - 301, pressing cylinder - 302, lower fixing plate - 303, moving bearing seat - 304, upper driven shaft - 305, feeding driven pressure wheel - 306, pressing guide rod - 307, dot printing mechanism - 4, dot printing fixed column - 401, dot printing cylinder fixing plate - 402, dot printing cylinder - 403, marking adapter plate - 404, dot printing pin - 405, die pressing adjustment fixing seat - 406, die head groove - 406a, buffer spring - 407, dot printing die head - 408, die head joint - 408a, ultrasonic dot printing welding head - 409, dot printing guide column - 410, dot printing linear bushing - 411, zipper - 5, upper pressing piece - 6, lower pressing piece - 7, insert strip - 8, heightening block - 9, motor mounting plate - 10, bearing - 11. Detailed implementation mode

[0025] In order to enable those skilled in the art to better understand the solution of the present utility model, the present utility model will be further described in detail below with reference to the accompanying drawings and implementation modes.

[0026] As Figures 1-5 shown, the embodiment of the present utility model provides a zipper dot printing device, which, according to the design requirements of subsequent zipper products, uses ultrasonic marking on a single zipper; it includes a dot printing translation mechanism 1, a zipper translation mechanism 2 arranged thereon, a pressing mechanism 3 that cooperates with the zipper translation mechanism to drive the zipper to move, and a dot printing mechanism 4 arranged on the dot printing translation mechanism and located in the next process of the zipper translation mechanism.

[0027] As Figures 2-4As shown in the figure, the dot printing translation mechanism 1 includes two parallel support bottom plates 101, two dot printing translation guide rails 102 respectively arranged on their upper surfaces, two groups of dot printing sliders 103 respectively movably arranged on the dot printing translation guide rails, a mounting plate 104 whose bottom surface is fixedly connected to the two groups of dot printing sliders, a dot printing translation cylinder 105 arranged on the bottom surface of the mounting plate, and a translation cylinder fixing seat 106 whose upper end is connected to the end of the telescopic rod of the dot printing translation cylinder; a through hole 104a is provided in the mounting plate 104. Obviously, the support bottom plate 101 is fixed on the frame of the automatic zipper threading machine, which will not be elaborated here. In order to increase the stability of the movement, each group of dot printing sliders 103 includes two sliders here. At the same time, in order to meet the height requirements, a heightening block 9 is arranged on each dot printing slider; the translation cylinder fixing seat 106 is fixed here. When the dot printing translation cylinder 105 is started, the dot printing translation cylinder 105 translates relative to the translation cylinder fixing seat, thereby driving the mounting plate 104 and the components arranged thereon to move on the dot printing translation guide rail 102.

[0028] As Figures 8-9 shown in the figure, specifically, the zipper translation mechanism 2 includes a first mounting bracket 201, a zipper translation power assembly 202, and a zipper translation assembly 203 arranged on the upper surface of the mounting plate 104; the zipper translation power assembly is connected to the zipper translation assembly; the first mounting bracket includes two parallel first mounting vertical plates 201a whose lower ends are perpendicular to the upper surface of the mounting plate 104.

[0029] As Figures 8-9 shown in the figure, the zipper translation power assembly 202 includes a zipper translation motor 202f mounted on the upper surface of the mounting plate 104, a translation driving wheel 202a connected to its output shaft, a translation driven wheel 202b, a translation synchronous belt 202c for connecting the translation driving wheel and the translation driven wheel, a translation driven shaft 202d perpendicular to the two first mounting vertical plates 201a, and a feeding driving wheel 202e sleeved on the translation driven shaft and located between the two first mounting vertical plates; the translation driven wheel 202b is sleeved on one end of the translation driven shaft and located outside one of the first mounting vertical plates. In order to install the zipper translation motor (not shown) here, a motor mounting plate 10 is provided on the upper surface of the mounting plate 104.

[0030] As Figures 8-9As shown in the figure, the zipper translation assembly 203 includes a translation support base 203a provided on the upper surface of the mounting plate 104, a feeding platform bottom plate 203b provided on its upper surface, a feeding platform cover plate 203c provided on the upper surface of the feeding platform bottom plate, a lower discharge plate 203d, and a discharge cover plate 203e provided on its upper surface; the lower discharge plate is fixedly connected to the two first mounting vertical plates 201a and is located above the feeding driving wheel 202e; a welding head perforation 203f is provided in the feeding platform bottom plate 203b; after the zipper 5 passes between the feeding platform bottom plate 203b and the feeding platform cover plate 203c, it is then sent out after passing between the feeding platform cover plate 203c and the lower discharge plate 203d.

[0031] As Figures 8-9 shown, the inner side surface of the lower discharge plate 203d that contacts the feeding driving wheel 202e is an arc surface having the same shape as the feeding driving wheel, so as to fit with the surface of the feeding driving wheel 202e.

[0032] Two upper pressing pieces 6 are provided on the outer surface of the discharge cover plate 203e and are located outside the space between the two first mounting vertical plates 201a and are arranged along the moving direction of the zipper 5; one lower pressing piece 7 parallel to the upper pressing piece 6 is provided on the lower surface of the front end of the discharge cover plate and on the upper surface of the front end of the lower discharge plate 203d respectively, and the zipper passes through the gap between the two lower pressing pieces. The function of the upper pressing piece 6 is to hold the teeth of the zipper, limit the zipper, prevent the zipper from swinging left and right, and cause inaccurate dot printing positions.

[0033] As Figures 8-9 shown, the pressing mechanism 3 includes an upper fixing plate 301 installed at the upper ends of the two first mounting vertical plates 201a, a pressing cylinder 302 provided on its upper surface, a lower fixing plate 303 located between the two first mounting vertical plates and below the upper fixing plate and connected to the lower end of the telescopic rod of the pressing cylinder, two parallel moving bearing seats 304 provided on the bottom surface of the lower fixing plate, an upper driven shaft 305 whose two ends are respectively vertically and movably connected to the two moving bearing seats, a feeding driven pressing wheel 306 located between the two moving bearing seats and sleeved on the upper driven shaft, and two parallel pressing guide rods 307 whose upper ends vertically pass through the upper fixing plate 301 and whose lower ends are fixedly connected to the upper surface of the lower fixing plate; longitudinal guide grooves 201b are provided in the inner side surfaces of the two first mounting vertical plates 201a, and the two moving bearing seats 304 are respectively movably arranged in the two longitudinal guide grooves. Bearings 11 are provided at the two ends of the translation driven shaft 202d and are respectively located inside the two first mounting vertical plates 201a, and bearings 11 are provided at the two ends of the upper driven shaft 305 and are respectively located inside the two moving bearing seats 304. The inner side surface of the discharge cover plate 203e is an arc surface and fits with the surface of the feeding driven pressing wheel 306.

[0034] With the above-mentioned zipper translation mechanism 2 and pressing mechanism 3, during operation, the zipper 5 sequentially passes between the bottom plate 203b and the cover plate 203c of the feeding platform, and between the driven feeding roller 306 and the driving feeding wheel 202e. The zipper translation motor (not shown) is started, and drives the translation driven shaft 202d and the driving feeding wheel 202e to rotate sequentially through the translation driving wheel 202a, the translation driven wheel 202b, and the translation synchronous belt 202c. At the same time, the pressing cylinder 302 is started, and its telescopic rod is used to push the lower fixing plate 303 downward, and then push the moving bearing seat 304, the upper driven shaft 305, and the driven feeding roller 306 downward, so that the driven feeding roller 306 is close to the driving feeding wheel 202e. When the driving feeding wheel rotates, under the action of the driven feeding roller 306 and the driving feeding wheel 202e, the zipper 5 moves forward and is sent out between the cover plate 203c of the feeding platform and the lower discharging plate 203d.

[0035] As Figures 4-7 shown, the dot printing mechanism 4 includes two mutually parallel dot printing fixed columns 401 provided on the upper surface of the mounting plate 104, a dot printing cylinder fixing plate 402 provided at their upper ends and fixedly connected thereto, a dot printing cylinder 403 provided thereon, a marking adapter plate 404 provided below the dot printing cylinder fixing plate and fixedly connected to the lower end of the telescopic rod of the dot printing cylinder, two dot printing pin columns 405 whose upper segments vertically pass through the marking adapter plate and whose lower segments are located below it, a die pressing adjustment fixing seat 406 fixedly connected to the lower segments of the two dot printing pin columns, two buffer springs 407 respectively sleeved on the two dot printing pin columns and located between the marking adapter plate and the die pressing adjustment fixing seat, two dot printing heads 408 provided on the lower surface of the die pressing adjustment fixing seat, an ultrasonic dot printing head 409 provided directly below the two dot printing heads, and the zipper passes between the dot printing head and the ultrasonic dot printing head. Here, the upper and lower ends of the buffer spring 407 are respectively in contact with the lower surface of the marking adapter plate and the upper surface of the die pressing adjustment fixing seat; the marking adapter plate 404 can move up and down relative to the two dot printing pin columns 405.

[0036] As Figures 4-7 shown, further, it also includes two dot printing linear bushings 411 respectively provided inside the dot printing cylinder fixing plate 402 and located on both sides of the dot printing cylinder 403, two dot printing guide columns 410 respectively passing through the two dot printing linear bushings and perpendicular to the dot printing cylinder fixing plate, and the upper surface of the marking adapter plate 404 is fixedly connected to the lower ends of the dot printing guide columns; a press head groove 406a with a trapezoidal cross-section is provided inside the lower surface of the die pressing adjustment fixing seat 406, and a press head joint 408a with a shape consistent with that of the press head groove is provided on the dot printing head 408; it also includes a strip 8 located between one inclined surface of the press head groove and one inclined surface of the press head joint for fixing the dot printing head 408.

[0037] During assembly, the middle section of the ultrasonic dot printing head 409 vertically passes through the perforation 104a provided in the mounting plate 104. The upper end of the ultrasonic dot printing head sequentially passes through the head perforation 203f in the bottom plate 203b of the feeding platform and the feeding platform cover plate 203c, and then is located below the zipper 5 and contacts the bottom surface of the zipper. The two dot printing heads 408 are located above the zipper 5. During operation, the dot printing cylinder 403 is activated to drive its telescopic rod to drive the marking adapter plate 404 and the dot printing pin 405 to move downward. The die pressing adjustment fixing seat 406 and the two dot printing heads 408 move downward accordingly. When the dot printing head 408 contacts the upper surface of the zipper 5 and at the same time the dot printing head contacts the ultrasonic dot printing head 409, ultrasonic dot printing starts. At this time, in order to prevent the dot printing head 408 from damaging the ultrasonic dot printing head 409, when the marking adapter plate 404 moves downward relative to the two dot printing pins 405, the two dot printing pins 405 no longer move with it. That is, at this time, the marking adapter plate 404 moves downward relative to the dot printing pins. The buffer spring 407 between the marking adapter plate 404 and the die pressing adjustment fixing seat 406 is compressed and pushes the die pressing adjustment fixing seat and the dot printing head 408 downward, which can prevent the die pressing adjustment fixing seat from moving rigidly and pushing the dot printing head 408 to damage the ultrasonic dot printing head 409.

[0038] In summary, by using the method of ultrasonic dot printing for marking, after the two dot printing heads 408 contact the ultrasonic dot printing head 409, marks are made on the edges of the two side tapes of the zipper 5 passing between them. The mark is a relatively narrow straight line, which can accurately correspond to the mark on the product using the zipper 5. Therefore, the mark made by the dot printing device of the present invention has accurate position and is convenient for the subsequent use of the zipper.

[0039] In the above description, it should be noted that the corresponding terms such as "installation", "connection", and "coupling" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a direct connection or an indirect connection through an intermediate medium, and it can be the communication inside two components; "provided in" should be understood as "installed in, set in", including installation methods such as fixed installation and movable installation.

[0040] Obviously, the above-described embodiments are only a part of the embodiments of the present invention, rather than all embodiments. The accompanying drawings show the preferred embodiments of the present invention, but do not limit the patent scope of the present invention. The present invention can be implemented in many different forms. On the contrary, the purpose of providing these embodiments is to make the understanding of the disclosed content of the present invention more thorough and comprehensive. Any equivalent structure made by using the specification and drawings of the present invention, directly or indirectly applied in other related technical fields, is equally within the scope of the patent protection of the present invention.

Claims

1. A zipper feeding dot printing device, characterized in that: The invention comprises a dot printing translation mechanism (1), a zipper translation mechanism (2) arranged thereon, a pressing mechanism (3) cooperating with the zipper translation mechanism to drive the zipper to move, and a dot printing mechanism (4) arranged on the dot printing translation mechanism and located in the next process of the zipper translation mechanism; the dot printing mechanism comprises an ultrasonic dot printing welding head (409).

2. A zipper feeding dot printing device as claimed in claim 1, characterized in that: The dot printing translation mechanism (1) comprises two mutually parallel supporting base plates (101), two dot printing translation guide rails (102) respectively arranged on the upper surfaces of the two dot printing translation guide rails, two groups of dot printing sliders (103) respectively movably arranged on the dot printing translation guide rails, a mounting plate (104) whose bottom surface is fixedly connected to the two groups of dot printing sliders, a dot printing translation cylinder (105) arranged on the bottom surface of the mounting plate, and a translation cylinder fixing seat (106) whose upper end is connected to the end of the telescopic rod of the dot printing translation cylinder; the mounting plate (104) is provided with a through hole (104a).

3. A zipper feeding dot printing device as claimed in claim 2, characterized in that: The zipper translation mechanism (2) comprises a first mounting bracket (201) arranged on the upper surface of the mounting plate (104), a zipper translation force assembly (202), and a zipper translation assembly (203); the zipper translation force assembly is connected to the zipper translation assembly; the first mounting bracket comprises two first mounting vertical plates (201a) which are parallel to each other and whose lower ends are perpendicular to the upper surface of the mounting plate (104).

4. A zipper feeding dot printing device as claimed in claim 3, characterized in that: The zipper translation power assembly (202) comprises a zipper translation motor mounted on the upper surface of a mounting plate (104), a translation driving wheel (202a) connected to its output shaft, a translation driven wheel (202b), a translation synchronous belt (202c) for connecting the translation driving wheel and the translation driven wheel, a translation driven shaft (202d) perpendicular to the two first mounting vertical plates (201a), and a feeding driving wheel (202e) sleeved on the translation driven shaft and located between the two first mounting vertical plates; the translation driven wheel (202b) sleeved on one end of the translation driven shaft and located on the outside of one of the first mounting vertical plates.

5. A zipper feeding dot printing device as claimed in claim 4, characterized in that: The zipper translation assembly (203) comprises a translation support seat (203a) arranged on the upper surface of the mounting plate, a feeding platform bottom plate (203b) arranged on the upper surface thereof, a feeding platform cover plate (203c) arranged on the upper surface thereof, a lower discharge plate (203d) and a discharge cover plate (203e) arranged on the upper surface thereof; the lower discharge plate is fixedly connected to the two first mounting vertical plates (201a) and is located above the feeding driving wheel (202e); a welding head through hole (203f) is provided in the feeding platform bottom plate (203b); the zipper (5) passes between the feeding platform bottom plate (203b) and the feeding platform cover plate (203c), and then passes between the feeding platform cover plate (203c) and the lower discharge plate (203d) before being delivered.

6. A zipper feeding dot printing device as claimed in claim 5, characterized in that: The inner side surface of the lower discharge plate (203d) in contact with the feeding driving wheel (202e) is an arc-shaped surface consistent with the shape of the feeding driving wheel; the inner side surface of the discharge cover plate (203e) is an arc-shaped surface; and bearings (11) respectively located in two first mounting vertical plates (201a) are provided at both ends of the translation driven shaft (202d).

7. A zipper feeding dot printing device as claimed in claim 6, characterized in that: Two upper pressing plates (6) are provided on the outer surface of the discharge cover plate (203e) and are located outside the space between the two first mounting vertical plates (201a) and are arranged along the direction of movement of the zipper (5); a lower pressing plate (7) parallel to the upper pressing plate (6) is provided on the lower surface of the front end of the discharge cover plate and the upper surface of the front end of the lower discharge plate (203d), and the zipper passes through the gap between the two lower pressing plates.

8. A zipper feeding dot printing device as claimed in claim 3, characterized in that: The pressing mechanism (3) comprises an upper fixing plate (301) mounted on the upper ends of two first mounting vertical plates (201a), a pressing cylinder (302) arranged on the upper surface thereof, a lower fixing plate (303) located between the two first mounting vertical plates and below the upper fixing plate and connected to the lower end of the telescopic rod of the pressing cylinder, two mutually parallel movable bearing seats (304) arranged on the bottom surface of the lower fixing plate, an upper driven shaft (305) with two ends respectively perpendicular to and movably connected to the two movable bearing seats, and a lower fixing plate (303) located between the two movable bearing seats and below the upper fixing plate and connected to the lower end of the telescopic rod of the pressing cylinder. A feeding driven pressure wheel (306) is sleeved on the upper driven shaft, and two downward pressure guide rods (307) are parallel to each other and the upper ends of which vertically pass through the upper fixed plate (301) and the lower ends are fixedly connected to the upper surface of the lower fixed plate; the inner side surfaces of the two first mounting vertical plates (201a) are both provided with longitudinal guide grooves (201b), the two movable bearing seats (304) are respectively movably arranged in the two longitudinal guide grooves, and bearings (11) are respectively arranged in the two movable bearing seats (304) at both ends of the upper driven shaft (305).

9. A zipper feeding dot printing device as claimed in claim 2, characterized in that: The dot printing mechanism (4) comprises two dot printing fixed columns (401) arranged on the upper surface of the mounting plate (104) and parallel to each other, a dot printing cylinder fixed plate (402) arranged at the upper ends of the two and fixedly connected thereto, a dot printing cylinder (403) arranged thereon, a marking adapter plate (404) arranged below the dot printing cylinder fixed plate and fixedly connected to the lower end of the telescopic rod of the dot printing cylinder, two dot printing pins (405) whose upper sections vertically pass through the marking adapter plate and whose lower sections are located below the dot printing pins, and a die adjustment fixing seat (406) fixedly connected to the lower sections of the two dot printing pins. , two buffer springs (407) respectively sleeved on the two dot printing pins and located between the marking adapter plate and the die adjustment fixing seat, two dot printing pressure heads (408) arranged on the lower surface of the die adjustment fixing seat, an ultrasonic dot printing welding head (409) arranged directly below the two dot printing pressure heads, and the zipper passes between the dot printing pressure heads and the ultrasonic dot printing welding heads; the upper and lower ends of the buffer springs are respectively in contact with the lower surface of the marking adapter plate and the upper surface of the die adjustment fixing seat; the marking adapter plate (404) can move up and down relative to the two dot printing pins (405).

10. A zipper feeding dot printing device as claimed in claim 9, characterized in that: It also includes two dot printing linear bushings (411) respectively arranged in the dot printing cylinder fixing plate (402) and located on both sides of the dot printing cylinder (403), two dot printing guide pillars (410) respectively passing through the two dot printing linear bushings and perpendicular to the dot printing cylinder fixing plate, the upper surface of the marking adapter plate (404) is fixedly connected to the lower end of the dot printing guide pillar; the lower surface of the die adjustment fixing seat (406) is provided with a pressure head groove (406a) with a trapezoidal cross section, and the dot printing pressure head (408) is provided with a pressure head joint (408a) with the same shape as the pressure head groove; and it also includes a strip (8) for fixing the dot printing pressure head (408) and located between one of the inclined surfaces of the pressure head groove and one of the inclined surfaces of the pressure head joint.

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