TWI554390B - Continuous zipper forming machine - Google Patents

Description

Continuous zipper forming machine

The present invention relates to a molding machine, and more particularly to a continuous zipper molding machine.

According to the current use of zippers is very common, and because the zipper is applied to different types of clothing, backpacks, travel bags, briefcases, shoes and other items, the zipper has different functions, and the zipper mostly uses a metal. The pull piece is connected to the slider, so that the pull piece can be pulled to slide the slider along the surface of the chain belt, and the slider can be opened and pulled by the slider to easily adjust the opening size of the object combined with the seam on the chain belt. And it is quite convenient to use.

At present, the machine for forming a zipper is a conventional vertical injection molding machine, which mainly comprises a machine table, a fixed die base disposed on the machine table and a movable mold base which can be engaged or disengaged relative to the fixed mold base. a mold cavity is respectively disposed on the abutting surface of the fixed mold base and the movable mold base, and the movable mold base has a sprue opening perpendicular to the one of the discharge tube and the chain tooth mold of the machine. The main process sequence of the vertical injection molding machine is as follows: 1. The webbing enters and is positioned by one side of the fixed mold base; 2. The movable mold base is engaged with the fixed mold base; 3. The plastic is discharged from the mold The tube is injected into the sprocket cavity through the sprue; 4. Holding the fixed mold base and the movable mold base; 5. cooling the fixed mold base and the movable mold base; 6. separating the moving mold from the fixed mold; 7. moving the web with the chain teeth to the fixed The other side of the mold base is displaced by a predetermined distance; 8. The excess waste is scraped off, and the zipper tape is taken up by the winder.

The second cycle is repeated from step 2 to the next cycle step 8 to complete the continuous zipper tape.

However, the moving mold can only produce a zipper tape of a predetermined length each time it is engaged and opened, which results in low productivity; further, the zipper is a combined tensile strength of the sprocket and the webbing, and the size is required to be precise. Sex, molecular orientation, warpage, dents, residual stress properties, etc., as shown in Figure 1, which shows the state of the zipper tape (1) without cutting off excess waste (15), the vertical arrow in the figure (11) For the plastic feeding direction of the sprue, the horizontal arrow (12) is the flow direction of the plastic in the cavity. Since the sprue is perpendicular to the die seat, each element (13) of the same die exits the sprue. The farther it is, the more the sprocket (13) is not properly filled (as shown in Fig. 1a), and thus the weaker the combined tensile strength of the sprocket (13) and the webbing (14), these phenomena are all affected. An important factor in the quality, precision and appearance of the product. Therefore, how to improve the production capacity and quality of the zipper tape (1) is a problem to be improved.

The invention mainly solves the problems that the zipper tape has low productivity and poor end filling, and affects the quality of the zipper tape in solving the conventional technology.

In order to improve the problem of the conventional technology, the present invention provides a continuous zipper molding machine which is used in combination with an injection molding machine, the injection molding machine having a discharge pipe; the continuous zipper molding die mainly comprises: a machine, disposed on a side of the injection molding machine, having a first end adjacent to the discharge pipe and a second end spaced apart from the first end; a first conveying device along a discharge direction of the discharge pipe Provided on the machine table; a second conveying device is disposed on the machine table along the discharge direction of the discharge pipe, and the second conveying device and the first conveying device are mutually Reverse rotation; a plurality of first mold bases, the ring is disposed on the first conveying device, each of the first mold bases has a first parting surface and a cavity formed on the first parting surface; and a plurality of second modes Each of the second mold bases has a second parting surface and a cavity formed on the second parting surface, and each of the second mold bases is disposed on the second conveying device opposite to the first mold base. And each of the first parting surface and the corresponding second parting surface are mutually opposite to each other at the first end of the machine And the state is displaced, and the second end of the machine is separated from each other, and when each of the first parting surfaces is in a state of being in abutment with the corresponding second parting surface, the adjacent cavity forms a communication .

Thereby, the first conveying device and the second conveying device are driven to rotate in opposite directions, and each of the first die holder and each of the second die holders follow the first input The feeding device and the second conveying device are moved, and the first end of the machine is mutually displaced to a circular motion of the second end of the machine, and the discharging pipe is disposed in the communicating cavity. The plastic injection continuously produces the finished zipper tape under the cycle of the first and second mold bases.

Prior art:

(1) ‧ ‧ zipper belt

(11) ‧ ‧ vertical arrows

(12)‧‧‧Horizontal arrows

(13)‧‧‧ sprocket

(14) ‧‧‧webbing

(15) ‧ ‧ scrap

this invention:

(2)‧‧‧Molding machine

(3)‧‧‧ Machines

(31) ‧‧‧ first end

(32) ‧‧‧ second end

(4)‧‧‧First conveyor

(41)‧‧‧ drive gears

(42)‧‧‧Chales

(5) ‧‧‧Second conveyor

(6) ‧‧‧ first mold base

(61) ‧‧‧ first parting surface

(62) (72) ‧‧‧web positioning slot

(63) (73) ‧ ‧ cavities

(64) (74) ‧ ‧ flow path

(7)‧‧‧Second mold base

(71)‧‧‧Second parting surface

(8)‧‧‧Molding track

(9) ‧‧‧Cooling device

(91)‧‧‧Fan

(A) ‧‧‧shot area

(B) ‧‧‧Preservation zone

(C) ‧‧‧Cooling area

(D) ‧ ‧ zipper belt

(E) ‧ ‧ scrap

(T1)‧‧‧ sprocket

(S1)‧‧‧Injection molding machine

(S11)‧‧‧Drawing tube

(S2)‧‧‧web conveyor

(S21)‧‧‧Webbing

(S3)‧‧‧Retractor

Figure 1, 1a: is a schematic view of a prior art zipper tape product and a partial enlarged view thereof.

Figure 2 is a schematic perspective view of the present invention.

Figure 3 is a schematic view showing the configuration of the present invention and a webbing conveyor and a retractor.

4 and 5 are partial perspective views of the present invention.

Figure 6, 7: Schematic diagram of the configuration of the discharge pipe and the mold base.

Figure 8 is a schematic view of the finished product of the zipper tape of the present invention.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, a continuous zipper molding machine in accordance with a preferred embodiment of the present invention will be described with reference to the accompanying drawings, wherein the same elements will be described with the same reference numerals.

2 is a perspective view showing a three-dimensional assembly of a continuous zipper forming machine according to a preferred embodiment of the present invention, and FIG. 3 is a schematic view showing the arrangement of the present invention and a webbing conveyor and a retracting machine. Referring to FIG. 2 and FIG. 3, the continuous zipper forming machine (2) of the present invention is used in combination with an injection molding machine (S1), a webbing conveyor (S2), and a reeling machine. (S3), the molding die (2) mainly comprises: a machine table (3), a first conveying device (4), a second conveying device (5), a plurality of first die holders (6), and a plurality of second a mold base (7), the first conveying device (4) and the second conveying device (5) are reversely rotated on the machine table (3), and each of the first mold bases (6) is disposed on the mold base (6) The first conveying device (4), each of the second mold bases (7) is annularly disposed on the second conveying device (5).

The machine table (3) is disposed on the side of the injection molding machine (S1), the injection molding machine (S1) has a discharge pipe (S11), and the machine table (3) has a discharge pipe (S11) adjacent thereto. The first end (31) and the second end (32) of the first end (31) form a linear path between the first end (31) and the second end (32).

The first conveying device (4) is disposed on the machine table (3) along the direction of the discharge of the discharge pipe (S11); the second conveying device (5) is directed along the discharge direction of the discharge pipe (S11) The first conveying device (4) is disposed on the machine table (3), and the second conveying device (5) and the first conveying device (4) rotate in opposite directions with each other.

As described above, the first conveying device (4) and the second conveying device (5) respectively have two driving gears (41) and a chain (42) arranged at intervals, and the chain (42) is engaged with the two. The driving gear (41), when each of the driving gears (41) is rotated, the chain (42) is cyclically rotated by the pulling of the two driving gears (41); that is, the first embodiment is not limited to the first The type of the conveying device (4) and the second conveying device (5) and the structure thereof can drive the first mold base (6) and the second mold base (7) to circulate and move on the machine table (3) The device or structure between the first end portion (31) and the second end portion (32) is the application scope of the embodiment.

Each of the first mold bases (6) is looped on the chain of the first conveying device (4) The strip (42) has a first parting surface (61) on a side of the first mold base (6) opposite to the chain (42), and the first parting surface (61) is provided with a web positioning groove ( 62) and a cavity (63), wherein the cavity (63) is composed of a plurality of spaced and oppositely arranged chain-toothed grooves (T1), and a pair of oppositely oriented toothed grooves (T1) form a first-class shape. Road (64).

Each of the second mold bases (7) is disposed on the chain (42) of the second conveying device (5), and each of the second mold bases (7) has a second side opposite to the chain (42). a parting surface (71), the second parting surface (71) is provided with a web positioning groove (72) and a cavity (73), wherein the cavity (73) is composed of a plurality of spaced and aligned chains The toothed groove (T1) is formed, and a first-class track (74) is formed in the middle of the opposite chain-shaped groove (T1), and the cavity (73) of the second partial mold surface (71) is coupled to the first partial mold The cavity (63) of the face (61) corresponds; each of the first split face (61) and the corresponding second split face (71) are at the first end (31) of the machine (3) In a mating state and displaced to the second end (32), and at a second end (32) of the machine (3) are separated from each other, and when each of the first parting surfaces (61) and the corresponding When the dichotomous surface (71) is in a mated state, two adjacent cavities (63) (73) are in communication, as shown in FIG. The invention does not limit the materials of the first mold base (6) and the second mold base (7), and is preferably made of an aluminum alloy material, which has the characteristics of quick cooling and heat dissipation, and can improve production efficiency.

Furthermore, a shot area (A), a pressure holding area (B) and a cooling area (C) are sequentially formed between the first end (31) and the second end (32) of the machine table (3), and the shot material is formed. The zone (A) is for plastic injection, and the pressure holding zone (B) is provided with a clamping track (8) for clamping each of the first die holder (6) and the second die holder (7), the cooling zone (C) providing a cooling device (not shown) for cooling each of the first die holder (6) and the second die holder (7), and the webbing conveyor (S2) is disposed on the projecting material On both sides of the front section of the zone (A), the two sides of the webbing (S21) are simultaneously automatically pushed to the first mold base (6) and the web positioning groove (62) (72) of the second mold base (7) is positioned.

4 to 7, when the first parting surface (61) and the corresponding second parting surface (71) are aligned with each other at the first end (31) of the machine (3) State, and is pulled by the first conveying device (4) and the second conveying device (5) to the second end (32) of the machine table (3), the discharge pipe (S11) is passed through The flow path (64) (74) in the cavity (63) (73) of the injection zone (A) is caused by a chain slot (T1) from one end of the cavity (63) (73). Starting the continuous shot to the other end of the chain groove (T1), since each of the first mold base (6) and the second mold base (7) continuously moves toward the discharge direction of the discharge pipe (S11), The plastic is evenly distributed on each of the first mold base (6) and the second mold base (7). Moreover, it can be installed with a plurality of discharge tubes, and can be mixed with multiple colors and multiple materials.

The first mold base (6) and the second mold base (7) formed by the injection molding are transferred to the pressure holding zone (B), and the pressure holding zone (B) has two parallel mold clamping rails (8) set at the first The outer side of the mold base (6) and the second mold base (7) are used for clamping the first mold base (6) and the second mold base (7) to fill the plastic in the cavity (63) (73) uniformly. While maintaining the setting time and completing the pressure-holding molding, the plastic shrinkage is reduced.

After the pressure-maintaining molding is completed, the first mold base (6) and the second mold base (7) are transferred to the cooling zone (C), and the cooling zone (C) is provided with a cooling device (9) due to the cooling device (9) There are many aspects, such as water cooling, air cooling or oil cooling. The present embodiment is described by air cooling, and the cooling device (9) is disposed on the first mold base (6) and the second mold base (7). The machine (3) on one side includes at least one fan (91) for blowing air to the outside of the first mold base (6) and the second mold base (7). Achieve the effect of cooling.

When the cooling is completed, it is transferred to the second end (32) of the machine table (3), and the first mold base (6) and the second mold base (7) respectively follow the first conveying device (4) and the second The conveying device (5) is separated from each other, and the completed zipper tape (D) is taken up by the external zipper tape reel (S3) along the linear trajectory of the first end (31) to the second end (32). Before the winding, the scrap (E) of the flow path (64) (74) is scraped off by the cutter, and the finished product of the zipper tape (D) as shown in Fig. 8 is completed.

Furthermore, the present invention does not limit the arrangement of the first conveying device (4) and the second conveying device (5), and may be arranged up and down as shown in the drawing to form a vertical forming mold, or The left and right sides are configured to form a horizontal molding die.

Therefore, the specific focus of the present invention and its benefits are:

1. Since the invention is operated by a plurality of mold bases and simultaneously produced by a plastic injection method, the zipper tape is continuously produced, thereby shortening the time and increasing the productivity.

Second, since the conveying device of the present invention is disposed along the direction of the discharge pipe of the injection molding machine, the direction of the injection material and the circulation direction of the die holder are in the same direction, thereby shortening the flow path of the injection and saving the time of injection.

The above is only the preferred embodiment of the present invention, and is not intended to limit the features of the present invention. The invention of the present invention is still within the scope of the invention. The statements of the invention and the description of the specification are not intended to limit the scope of the invention, and any equivalents and modifications of the invention may be included in the invention without departing from the spirit and scope of the invention. Within the scope, the party is reasonable.

(2)‧‧‧Molding mould

(3)‧‧‧ Machines

(4)‧‧‧First conveyor

(5) ‧‧‧Second conveyor

(6) ‧‧‧ first mold base

(7)‧‧‧Second mold base

(8)‧‧‧Molding track

(9) ‧‧‧Cooling device

(S1)‧‧‧Injection molding machine

(S11)‧‧‧Drawing tube

Claims (5)

A continuous zipper molding machine, which is used in combination with an injection molding machine, the injection molding machine has a discharge pipe; the continuous zipper molding machine mainly comprises: a machine set on one side of the injection molding machine, which has a first end adjacent to the discharge tube and a second end spaced apart from the first end; a first conveying device disposed on the machine along a direction of the discharge of the discharge pipe; a second conveying device The first conveying device is disposed on the machine table along the direction of the shooting direction of the discharge pipe, and the second conveying device and the first conveying device rotate in opposite directions with each other; a plurality of first die holders are disposed on the ring a first conveying device, each of the first mold bases has a first parting surface and a cavity formed on the first parting surface; and a plurality of second mold bases, each of the second mold bases having a second partial mold And the second mold base is disposed on the second conveying device with respect to each of the first mold bases, and each of the first partial mold faces and the corresponding second The parting surface is opposite to each other at the first end of the machine and is displaced, and is separated from each other at the second end of the machine And when each of the first parting surface corresponding to the parting-section of the second engagement state, is formed adjacent cavity-based communication. The continuous zipper forming machine according to claim 1, wherein a clamping track for clamping the first mold base and the second mold base is disposed between the first end and the second end of the machine. The continuous zipper forming machine according to claim 2, wherein the mold clamping A cooling device for cooling each of the first mold base and the second mold base is disposed between the rail and the second end of the machine. The continuous zipper forming machine according to claim 1, wherein the first conveying device and the second conveying device each have two spaced apart driving gears and a chain, and the chain meshes with the two driving gears. The continuous zipper forming machine according to claim 1, wherein each of the first parting surface and each of the second parting surfaces is provided with a web positioning groove.