Zipper processing technology and device

Abstract

According to the technical scheme, the zipper machining device is characterized by comprising an injection molding machine, a controller, an upper mold assembly and a lower mold assembly, the upper mold assembly and the lower mold assembly are both arranged on the injection molding machine, and a feeding gap allowing a cloth belt to penetrate through is reserved between the upper mold assembly and the lower mold assembly; the lower die assembly comprises a lower die base, a lower die plate and a first lifting part, the lower die plate is connected to the lower die base in a lifting mode, the first lifting part is used for driving the lower die plate to move up and down, grooves for allowing cloth belts to be inserted are formed in the two sides of the lower die plate in the width direction, and the cloth belts are conveyed in the length direction of the lower die plate; anti-pinch assemblies are arranged on the two sides of the lower die plate in the length direction and used for driving the cloth belt to move towards the two sides. Pushing assemblies are arranged on the two sides of the lower mold plate in the width direction, and the pushing assemblies are used for pushing the cloth belt to move towards the lower mold plate; the controller is used for sequentially controlling the first lifting piece, the anti-pinch assembly and the abutting and pushing assembly to operate. The zipper machining device can improve the zipper machining efficiency.

Description

Technical Field

[0001] The present invention relates to the technical field of zipper manufacturing, and more specifically, to a zipper processing technology and device. Background Art

[0002] Zippers are common items in people's lives and are mainly used in clothing, shoes, hats, and various bags. Zippers are usually composed of cloth tapes, chain teeth, and pull heads. The chain teeth are arranged continuously on the edges of two cloth tapes. By sliding the pull head, the chain teeth on the two cloth tapes can be driven to engage or separate with each other, thereby playing the role of opening and closing. In order to improve the waterproof and airproof effects during sealing, airtight zippers will be used as seals.

[0003] Airtight zippers, as the name suggests, are watertight and airtight zippers. They form a closed layer through the bite of the zipper teeth to isolate the flow of gas and liquid inside and outside the zipper.

[0004] Our company has previously applied for a zipper production equipment and processing method with publication number CN112590113B, in which an injection molding upper mold and an injection molding lower mold are fitted together to form a mold, and then thermoplastic material is injected to form chain teeth. The existing airtight zippers have the following problems in the manufacturing process: 1. During the conveying and fixing process of the fabric tape, it may be clamped by the lower mold plate, thereby affecting the subsequent injection molding operation; 2. In order to avoid the occurrence of problem 1, the operator needs to make real-time adjustments, which affects production efficiency. Summary of the invention

[0005] In view of the deficiencies in the prior art, an object of the present invention is to provide a zipper processing technology and device, wherein the zipper processing device can improve the zipper processing efficiency.

[0006] To achieve the above object, the present invention provides the following technical solutions: a zipper processing device, comprising an injection molding machine, a controller, an upper mold assembly and a lower mold assembly, wherein the upper mold assembly and the lower mold assembly are both arranged on the injection molding machine, and a feeding gap is left between the upper mold assembly and the lower mold assembly for the cloth tape to pass through;

[0007] The lower mold assembly includes a lower mold base, a lower mold plate and a first lifting member, the lower mold plate is lifted and connected to the lower mold base, the first lifting member is used to drive the lower mold plate to move up and down, both sides of the lower mold plate in the width direction are provided with grooves for inserting the cloth tape, and the cloth tape is delivered and arranged along the length direction of the lower mold plate;

[0008] Anti-pinch components are provided on both sides of the lower template in the length direction, and the anti-pinch components are used to drive the cloth belt to move to both sides;

[0009] Both sides of the lower template in the width direction are provided with push components, and the push components are used to push the cloth belt to move toward the lower template;

[0010] The controller is used to control the operations of the first lifting member, the anti-pinch assembly, and the push assembly in sequence.

[0011] The present invention is further configured as follows: the anti-pinch assembly includes a second lifting member and a lifting block, the second lifting member is used to drive the lifting block to move up and down, the lifting block is located between the two cloth belts, and when the lifting block moves upward, it can push the two cloth belts to move to both sides from the middle.

[0012] The present invention is further configured as follows: the push assembly includes a push block and a push member, the push member is installed on the upper mold assembly, and the push block is installed on the lower mold base. When the upper mold assembly moves downward, the push member pushes the push block to move toward the lower mold plate.

[0013] The present invention is further configured as follows: the push block is configured in an L-structure, and a travel space is left between the push block and the lower die base.

[0014] The present invention is further configured such that: the push block is made of spring steel sheet material.

[0015] The present invention is further configured to include a punching mechanism, a feeding mechanism and a discharging mechanism, wherein the punching mechanism is arranged on a side of the lower die assembly for feeding, and the feeding mechanism is arranged on a side of the punching mechanism away from the lower die assembly;

[0016] The discharging mechanism is arranged on a side of the lower die assembly away from the punching mechanism.

[0017] The present invention is further configured as follows: a traction mechanism is provided between the feeding mechanism and the punching mechanism, and the traction mechanism is used to pull the cloth belt to move toward the feeding mechanism.

[0018] A processing technology of a zipper processing device includes the following steps: S1, a lower mold plate is moved downward to fix a cloth belt to a lower mold base, an upper mold assembly is moved downward to form an injection molding space with the lower mold plate, and plastic is injected into the injection molding space by an injection molding machine to form chain teeth;

[0019] S2, the upper mold assembly and the lower mold plate move upward in sequence, contacting the restrictive effect on the fabric tape;

[0020] S3, the anti-pinch assembly moves upward, causing the two cloth belts to move to both sides, and then the two cloth belts move forward a unit distance;

[0021] S4, the push assembly pushes the cloth belt into the groove;

[0022] S5, repeat steps S1-S4.

[0023] A processing technology of a zipper processing device includes the following steps: A1, a discharging mechanism drives a cloth to move to a punching station position of a punching mechanism and an injection molding station position of an injection molding machine, the cloth belt sequentially includes a punching section, a middle section, and an injection molding section of equal length, the punching section is located at the punching station position, and the injection molding section is located at the injection molding station position;

[0024] A2, the lower mold plate moves downward to fix the cloth belt to the lower mold base, the upper mold assembly moves downward to form an injection molding space with the lower mold plate, and the plastic is injected into the injection molding space by the injection molding machine to form the chain teeth;

[0025] A3, the upper mold assembly and the lower mold plate move upward in sequence, contacting the restrictive effect on the fabric tape;

[0026] A4, the anti-pinch assembly moves upward, causing the two cloth belts to move to both sides, and then the discharging mechanism drives the cloth belts to move forward a unit distance, and the unit distance length is greater than or equal to the injection section length;

[0027] A5, the push assembly pushes the cloth belt into the groove;

[0028] A6, repeat steps A1-A5.

[0029] The present invention is further configured as follows: the step A4 also includes: A41, the traction mechanism pulls the cloth belt to move backward until the chain teeth abut against the lower template.

[0030] In summary, the present invention has the following beneficial effects: after completing a single injection molding operation, the upper mold assembly is first separated from the lower mold assembly, and then the first lifting member is used to control the upward movement of the lower mold plate, so that the chain teeth that have completed the injection molding are separated from the injection mold cavity on the lower mold base, thereby ensuring that the movement of the cloth tape is not hindered, and when the lower part of the cloth tape moves to the designated area, the anti-pinch assembly separates the cloth tape to both sides, and then during the downward movement of the lower mold plate, the cloth tape will not be clamped, thereby ensuring the effectiveness of the process.

[0031] Furthermore, after the lower template moves downward, the cloth tapes on both sides are pushed into the grooves through the push assembly, thereby ensuring that the gaps between the formed chain teeth are compact and the sealing is ensured. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 It is a structural schematic diagram of a zipper processing device;

[0033] Figure 2 It is a three-dimensional structural schematic diagram of a zipper injection molding device;

[0034] Figure 3 It is a three-dimensional structural schematic diagram of the positions of the upper mold assembly and the lower mold assembly.

[0035] Figure numerals: 1, injection molding machine; 2, controller; 3, upper mold assembly; 4, lower mold assembly; 41, lower mold base; 42, lower mold plate; 5, anti-pinch assembly; 6, push assembly; 61, push block; 62, push member; 7, punching mechanism; 71, feeding mechanism; 72, discharging mechanism; 8, traction mechanism. DETAILED DESCRIPTION

[0036] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0037] Reference Figures 1 to 3 As shown, in order to achieve the above-mentioned purpose, the present invention provides the following technical solutions: a zipper processing device, including an injection molding machine 1, a controller 2, an upper mold assembly 3 and a lower mold assembly 4, the upper mold assembly 3 and the lower mold assembly 4 are both arranged on the injection molding machine 1, and a feeding gap is left between the upper mold assembly 3 and the lower mold assembly 4 for the cloth tape to pass through; the upper mold assembly and the lower mold assembly are both provided with injection mold cavities for forming chain teeth.

[0038] The lower mold assembly 4 includes a lower mold base 41, a lower mold plate 42 and a first lifting member. The lower mold plate 42 is connected to the lower mold base 41 for lifting. The first lifting member is used to drive the lower mold plate 42 to move up and down. Both sides of the lower mold plate 42 in the width direction are provided with grooves for inserting the cloth tape. The cloth tape is delivered and arranged along the length direction of the lower mold plate 42.

[0039] Anti-pinch components 5 are provided on both sides of the length direction of the lower template 42, and the anti-pinch components 5 are used to drive the cloth belt to move to both sides;

[0040] Both sides of the lower template 42 in the width direction are provided with push components 6, and the push components 6 are used to push the cloth belt to move toward the lower template 42;

[0041] The controller 2 is used to control the operations of the first lifting member, the anti-pinch assembly 5 and the push assembly 6 in sequence.

[0042] According to the design of the present invention, after a single injection molding operation is completed, the upper mold assembly 3 is first separated from the lower mold assembly 4, and then the first lifting member is used to control the upward movement of the lower mold plate 42, so that the chain teeth that have completed the injection molding are separated from the injection mold cavity on the lower mold base 41, thereby ensuring that the movement of the cloth tape is not hindered. When the lower part of the cloth tape moves to the designated area, the anti-pinch assembly 5 separates the cloth tape to both sides, and then during the downward movement of the lower mold plate 42, the cloth tape will not be clamped, thereby ensuring the effectiveness of the process.

[0043] Furthermore, after the lower template 42 moves downward, the cloth tapes on both sides are pushed into the grooves by the push assembly 6, thereby ensuring that the gaps between the formed chain teeth are compact and the sealing is ensured.

[0044] The present invention is further configured as follows: the anti-pinch assembly 5 includes a second lifting member and a lifting block, the second lifting member is used to drive the lifting block to move up and down, the lifting block is located between the two cloth belts, and when the lifting block moves upward, it can push the two cloth belts to move to both sides from the middle.

[0045] The second lifting member, the first lifting member and other lifting members for controlling the lifting of the upper mold assembly 3 mentioned above are all suitable cylinders or electric lifting rods according to the use conditions. These lifting methods are all existing technologies and will not be described in detail here.

[0046] Two sets of lifting grooves are provided on the lower mold base 41, and the two sets of lifting grooves are respectively located at the centers of the two ends of the lower mold plate 42. The lifting blocks are slidably connected in the lifting grooves. The design of this structure enables the two cloth belts to flip outward when the lifting blocks are pushed out from the middle of the two cloth belts, thereby driving the cloth belts between the two ends to separate from the lower mold plate 42, thereby achieving an anti-pinch effect.

[0047] The present invention is further configured as follows: the push assembly 6 includes a push block 61 and a push member 62, the push member 62 is installed on the upper mold assembly 3, and the push block 61 is installed on the lower mold base 41. When the upper mold assembly 3 moves downward, the push member 62 pushes the push block 61 to move toward the lower mold plate 42.

[0048] When the upper mold assembly 3 moves downward, the push piece 62 is linked to the outer side surface of the push block 61. The advantage of this structural design is that when injection molding is about to take place, the push piece 62 can first be in contact with the push block 61, thereby ensuring that the cloth belt can be pushed into the groove.

[0049] The present invention is further configured as follows: the push block 61 is configured in an L-shaped structure, and a travel space is left between the push block 61 and the lower die base 41. The push block 61 is made of spring steel sheet material. When the push member 62 pushes the push block 61, the connection position between the push block 61 and the lower die base 41 is deformed, so that the upper end area moves forward, and when the push member 62 moves upward, the push block 61 is reset backward.

[0050] In addition to this embodiment, the push block 61 can also be movably connected to the lower die base 41 by a return spring or the like. For example, a sliding groove is provided on the lower die base 41, and a sliding rod is provided on the push block 61. The sliding rod is slidably connected in the sliding groove through a return spring. When the push member 62 pushes the push block 61, the return spring is compressed. When the push member 62 is reset, the push block 61 is reset accordingly under the action of the return spring.

[0051] The present invention is further configured to include a punching mechanism 7, a feeding mechanism 71 and a discharging mechanism 72, wherein the punching mechanism 7 is arranged on a feeding side of the lower die assembly 4, and the feeding mechanism 71 is arranged on a side of the punching mechanism 7 away from the lower die assembly 4;

[0052] The discharge mechanism 72 is disposed on a side of the lower die assembly 4 away from the punching mechanism 7 .

[0053] by Figure 1 For example, the feeding mechanism 71 and the discharging mechanism 72 can convey the tape from left to right, and perform punching and injection molding operations in sequence. It has the following advantages: punching and injection molding are integrated, no manual transfer and secondary positioning are required, work efficiency is improved, manual labor is reduced, and the tape is not affected by human factors or environmental factors, processing accuracy is improved, and the quality of zipper production is guaranteed.

[0054] The present invention is further configured as follows: a traction mechanism 8 is provided between the feeding mechanism 71 and the punching mechanism 7 , and the traction mechanism 8 is used for pulling the cloth belt to move toward the feeding mechanism 71 .

[0055] The traction mechanism 8 can perform a reset operation after completing a single punching and injection molding operation, thereby reducing the error. The specific operation steps are as follows: Example 1: A processing technology of a zipper processing device includes the following steps: A1, the discharge mechanism 72 drives the cloth to move to the punching station position of the punching mechanism 7 and the injection molding station position of the injection molding machine 1, and the cloth belt sequentially includes a punching section, an intermediate section, and an injection molding section of equal length, the punching section is located at the punching station position, and the injection molding section is located at the injection molding station position;

[0056] The punching length of the punching die, the injection length of the injection die and the distance between the two are the same, or the distance between the two is twice the punching length.

[0057] A2, the lower mold plate 42 moves downward to fix the cloth belt to the lower mold base 41, the upper mold assembly 3 moves downward to form an injection molding space with the lower mold plate 42, and the plastic is injected into the injection molding space by the injection molding machine 1 to form the chain teeth;

[0058] A3, the upper mold assembly 3 and the lower mold plate 42 move upward in sequence, contacting the limiting effect on the cloth belt;

[0059] A4, the anti-pinch assembly 5 moves upward, causing the two cloth belts to move to both sides, and then the discharging mechanism 72 drives the cloth belts to move forward a unit distance, and the unit distance length is greater than or equal to the injection section length;

[0060] A5, the push component 6 pushes the cloth belt into the groove;

[0061] A6, repeat steps A1-A5.

[0062] Step A4 also includes: A41, the traction mechanism 8 pulls the cloth belt to move backward until the chain element abuts against the lower template 42.

[0063] In the above step S41, each time the chain tooth abuts against the lower template 42 under the action of the traction mechanism 8, the injection section and the punching section can be located at the corresponding injection station position and the punching station position, reducing the position deviation caused by the drive of the discharge mechanism 72 and ensuring the stability of production.

[0064] It should be noted that the fastener elements can abut against the lower template 42 in the raised state.

[0065] Step Example 2: A processing technology of a zipper processing device includes the following steps: S1, the lower mold plate 42 moves downward to fix the cloth tape to the lower mold base 41, the upper mold assembly 3 moves downward to form an injection molding space with the lower mold plate 42, and the plastic is injected into the injection molding space by the injection molding machine 1 to form a chain tooth;

[0066] S2, the upper mold assembly 3 and the lower mold plate 42 move upward in sequence, contacting the limiting effect on the cloth belt;

[0067] S3, the anti-pinch assembly 5 moves upward, causing the two cloth belts to move to both sides, and then the two cloth belts move forward a unit distance;

[0068] S4, the push component 6 pushes the cloth belt into the groove;

[0069] S5, repeat steps S1-S4.

[0070] Furthermore, the feeding mechanism 71 can be a cylindrical stick, and the cloth tapes to be operated are bundled and installed on the feeding mechanism 71. The discharging mechanism 72 is provided with a motor on the basis of the feeding mechanism 71, and the cloth tapes are driven to move by the motor. The feeding mechanism 71, the discharging mechanism 72 and the punching mechanism 7 are all existing technologies and will not be described in detail here.

[0071] Furthermore, the traction mechanism 8 is a traction plate and a traction motor arranged between the feeding mechanism 71 and the punching mechanism 7. The traction motor drives the traction plate to rotate, so that the traction plate pulls the cloth tape to move toward the feeding mechanism 71, thereby straightening the rear half of the cloth tape.

[0072] The punching mechanism includes a punching lower die, a punching upper die and a punching drive assembly. When punching, when the cloth tape is placed between the punching lower die and the punching upper die, the punching drive assembly can drive the punching upper die to move downward, so that the punching upper die and the punching lower die are fitted to form a closed die. At the same time, the punching needle will pass through the cloth tape and enter the die hole, thereby realizing the punching of the cloth tape. After the punching is completed, the punching drive assembly can drive the punching upper die to move upward, and the punching upper die is separated from the punching lower die.

[0073] The above are only preferred embodiments of the present invention. The protection scope of the present invention is not limited to the above embodiments. All technical solutions under the concept of the present invention belong to the protection scope of the present invention. It should be pointed out that for ordinary technicians in this technical field, some improvements and modifications without departing from the principle of the present invention should also be regarded as the protection scope of the present invention.

Claims

1. A zipper processing device, comprising an injection molding machine (1), a controller (2), an upper mold assembly (3), and a lower mold assembly (4), wherein the upper mold assembly (3) and the lower mold assembly (4) are both arranged on the injection molding machine (1), and a feeding gap is left between the upper mold assembly (3) and the lower mold assembly (4) for a fabric tape to pass through; Its characteristics are: The lower mold assembly (4) comprises a lower mold base (41), a lower mold plate (42) and a first lifting member, wherein the lower mold plate (42) is connected to the lower mold base (41) in a lifting manner, and the first lifting member is used to drive the lower mold plate (42) to move up and down, and grooves for inserting cloth tapes are arranged on both sides of the lower mold plate (42) in the width direction, and the cloth tapes are arranged along the length direction of the lower mold plate (42); Anti-pinch components (5) are provided on both sides of the lower template (42) in the length direction, and the anti-pinch components (5) are used to drive the cloth belt to move to both sides; Both sides of the lower template (42) in the width direction are provided with push components (6), and the push components (6) are used to push the cloth belt to move toward the lower template (42); The controller (2) is used to sequentially control the operations of the first lifting member, the anti-pinch assembly (5), and the push assembly (6).

2. A zipper processing device according to claim 1, characterized in that: The anti-pinch assembly (5) comprises a second lifting member and a lifting block, wherein the second lifting member is used to drive the lifting block to move up and down, and the lifting block is located between the two cloth belts. When the lifting block moves upward, it can push the two cloth belts to move to both sides from the middle.

3. A zipper processing device according to claim 1, characterized in that: The push assembly (6) comprises a push block (61) and a push member (62); the push member (62) is mounted on the upper die assembly (3); the push block (61) is mounted on the lower die seat (41); when the upper die assembly (3) moves downward, the push member (62) pushes the push block (61) to move in the direction of the lower die plate (42).

4. A zipper processing device according to claim 3, characterized in that: The push block (61) is arranged in an L-structure, and a travel space is left between the push block (61) and the lower die seat (41).

5. A zipper processing device according to claim 4, characterized in that: The push block (61) is made of spring steel sheet material.

6. A zipper processing device according to any one of claims 1 to 5, characterized in that: It also includes a punching mechanism (7), a feeding mechanism (71) and a discharging mechanism (72), wherein the punching mechanism (7) is arranged on a side of the lower die assembly (4) for feeding, and the feeding mechanism (71) is arranged on a side of the punching mechanism (7) away from the lower die assembly (4); The discharge mechanism (72) is arranged on a side of the lower die assembly (4) away from the punching mechanism (7).

7. A zipper processing device according to claim 6, characterized in that: A traction mechanism (8) is provided between the feeding mechanism (71) and the punching mechanism (7), and the traction mechanism (8) is used to pull the cloth belt to move in the direction of the feeding mechanism (71).

8. A processing technology based on the zipper processing device according to claim 1, characterized in that The method comprises the following steps: S1, the lower mold plate (42) is moved downward to fix the cloth belt to the lower mold base (41), the upper mold assembly (3) is moved downward to form an injection molding space with the lower mold plate (42), and plastic is injected into the injection molding space by an injection molding machine (1) to form chain teeth; S2, the upper mold assembly (3) and the lower mold plate (42) move upward in sequence, contacting the restrictive effect on the cloth belt; S3, the anti-pinch assembly (5) moves upward, causing the two cloth belts to move to the sides, and then the two cloth belts move forward a unit distance; S4, the push component (6) pushes the cloth belt to be inserted into the groove; S5, repeat steps S1-S4.

9. A processing technology based on the zipper processing device according to claim 7, characterized in that The method comprises the following steps: A1, a discharging mechanism (72) drives the cloth to move to the punching station position of the punching mechanism (7) and the injection molding station position of the injection molding machine (1), the cloth belt sequentially comprises a punching section, an intermediate section, and an injection molding section of equal length, the punching section is located at the punching station position, and the injection molding section is located at the injection molding station position; A2, the lower mold plate (42) moves downward to fix the cloth belt to the lower mold base (41), the upper mold assembly (3) moves downward to form an injection molding space with the lower mold plate (42), and plastic is injected into the injection molding space by the injection molding machine (1) to form the chain teeth; A3, the upper mold assembly (3) and the lower mold plate (42) move upward in sequence, contacting the restrictive effect on the cloth belt; A4, the anti-pinch assembly (5) moves upward, causing the two cloth belts to move to the sides, and then the discharging mechanism (72) drives the cloth belts to move forward a unit distance, the unit distance length being greater than or equal to the injection molding section length; A5, the push assembly (6) pushes the cloth belt to be inserted into the groove; A6, repeat steps A1-A5.

10. A zipper processing technology according to claim 9, characterized in that: The step A4 also includes: A41, the traction mechanism (8) pulls the cloth belt to move backward until the chain teeth abut against the lower template (42).

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