Dispensing needle bending device

Abstract

The utility model relates to a kind of dispensing needle bending device, including mounting seat, limit seat and two bending structures, the mounting seat has the installation structure of detachable fixed with double needle head first end on, the limit seat and two the bending structure are all located on the mounting seat, the limit seat is opened with the limit slot for double needle head tail end to be inserted simultaneously and limit each needle head tail end to be away from each other side towards the installation structure, each the bending structure includes the bending piece that can drive corresponding needle head middle part is away from each other. The dispensing needle bending device provided in the utility model solves the problem that the existing needle bending equipment is difficult to simultaneously bend inward for two needle heads for the dispensing needle of double needle head.

Description

Technical Field

[0001] This utility model relates to the field of dispensing process equipment technology, and in particular to a dispensing needle bending device. Background Technology

[0002] Currently, in automated dispensing processes for bonding top and bottom structures, it is often necessary to apply adhesive at the outer seam. These structures are typically symmetrical, and the dispensing needle needs to be tilted at a certain angle from the outside towards the seam. For symmetrical seams, the needle direction needs to be reversed. Traditional single-needle dispensing requires multiple reciprocating movements and angle switching when dealing with this type of structure, resulting in low efficiency. Therefore, a dual-needle dispensing needle is needed, with the needle tip bent inwards to simultaneously dispense adhesive at both seam locations.

[0003] However, existing needle bending equipment has difficulty bending both needles inward at the same time for dispensing needles with two needles. If they are bent separately, the bending efficiency is low, and bending one needle may affect the other needle. Utility Model Content

[0004] The main purpose of this invention is to propose a dispensing needle bending device, which aims to solve the problem that existing needle bending equipment is unable to simultaneously bend two needles inward for dispensing needles with two needles.

[0005] To achieve the above objectives, this utility model proposes a dispensing needle bending device, comprising a mounting base, a limiting base, and two bending structures. The mounting base has a mounting structure that can be detachably fixed to the tips of the two needles. The limiting base and the two bending structures are both disposed on the mounting base. The limiting base has a limiting groove on the side facing the mounting structure, which allows the tips of the two needles to extend into the groove simultaneously and restricts the tips of the needles from moving away from each other. Each bending structure includes a bending element that can drive the middle parts of the corresponding needles away from each other.

[0006] According to some embodiments of the present invention, the limiting groove includes a first groove segment, the first groove segment having two limiting surfaces that can abut against the side of each needle tip facing away from the other needle tip to limit the needle tips from moving away from each other.

[0007] According to some embodiments of the present invention, the limiting groove further includes a second groove segment. The first groove segment and the second groove segment are connected sequentially from the bottom of the limiting groove to the opening of the groove. The second groove segment has two guide surfaces. Each guide surface is inclined outward from its connection with the first groove segment to the opening of the groove, so that the bent section of each needle near the end can be moved along the corresponding guide surface.

[0008] According to some embodiments of the present invention, both bending structures are movably arranged relative to the mounting base, and the two bending structures can move closer to or further away from each other. Each bending member has an abutting end that can abut against the side of the middle of each needle facing the other needle.

[0009] According to some embodiments of this utility model, both of the bending structures are rotatably connected to the mounting base.

[0010] According to some embodiments of the present invention, the bending structure further includes a gripping member and a return spring. The gripping member is rotatably connected to the mounting base, and each of the bending members is correspondingly mounted on the gripping member. One end of the return spring is connected to the side of the gripping member facing the mounting base, and the other end is connected to the mounting base.

[0011] According to some embodiments of the present invention, the bending member includes an mounting part, a connecting part, and a force-applying part. The mounting part is connected to the gripping member, and the force-applying part is connected to the mounting part through the connecting part. An abutting end is formed on the force-applying part. The connecting parts of the two bending members are staggered so that the force-applying part of each bending member can apply force to a needle tip that is close to another bending member.

[0012] According to some embodiments of the present invention, the bending structure further includes a set screw that can abut against the side of the mounting base. The set screw is located on the side of the grip facing the mounting base and is threadedly connected to the grip.

[0013] According to some embodiments of the present invention, it further includes two limiting pins disposed on the mounting base. The two limiting pins are both located between the mounting structure and the limiting base and are disposed close to the mounting structure. Each limiting pin has an arc-shaped guide wall that can abut against the side of each needle facing away from the other needle to restrict the needle from moving in the axial direction of the limiting pin.

[0014] According to some embodiments of the present invention, the limiting seat and the mounting structure are arranged at intervals in the x-direction, and the limiting seat is movable and adjustable relative to the mounting seat in the x-direction.

[0015] This utility model has at least the following beneficial effects:

[0016] In this invention, the tips of the two needles are fixed by the mounting structure on the mounting base, while the ends of the two needles extend into the limiting groove of the limiting base. Then, two bending components of the bending structure drive the middle parts of the two needles away from each other, causing the ends of the two needles to tend to move away from each other. This exerts a force on the limiting base. Since the limiting base is stationary and the limiting groove restricts the ends of the two needles from moving away from each other, the ends of the two needles move closer together under the reaction force of the limiting base, thus achieving synchronous inward bending of the two needles. This invention, through the cooperation of the limiting base and the two bending components, simultaneously bends the two needles of the dual-needle dispensing needle inward, greatly improving bending efficiency. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 An exploded view of a dispensing needle bending device provided in an embodiment of this utility model;

[0019] Figure 2 for Figure 1 A schematic diagram of the dot glue needle bending device bending two needles;

[0020] Figure 3 for Figure 1 Schematic diagram of the middle mounting base;

[0021] Figure 4 for Figure 1 Schematic diagram of the structure of the bending component;

[0022] Figure 5 for Figure 1 Schematic diagram of the middle limit seat;

[0023] Figure 6 for Figure 1 A schematic diagram of the middle limit pin.

[0024] Explanation of reference numerals in the attached figures:

[0025] 100 - Dispensing needle bending device; 1 - Mounting base; 11 - Mounting structure; 2 - Limiting seat; 21 - Limiting groove; 211 - First groove segment; 212 - Second groove segment; 22 - Elongated hole; 3 - Bending structure; 31 - Bending part; 311 - Mounting part; 312 - Connecting part; 313 - Force application part; 32 - Holding part; 33 - Return spring; 34 - Set screw; 4 - Limiting pin; 41 - Arc-shaped guide wall; 200 - Double needle. Detailed Implementation

[0026] The technical solutions in the embodiments of this utility model are described clearly and completely below. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0027] It should be noted that if the embodiments of this utility model involve directional indicators (such as up, down, left, right, front, back, etc.), the directional indicators are only used to explain the relative positional relationship and movement of the components in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicators will also change accordingly.

[0028] Furthermore, if the embodiments of this utility model involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the meaning of "and / or" throughout the text includes three parallel solutions; for example, "A and / or B" includes solution A, solution B, or a solution where both A and B are satisfied simultaneously. Furthermore, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

[0029] This utility model provides a dispensing needle bending device. Figures 1 to 6 This invention provides a specific embodiment of a dispensing needle bending device.

[0030] like Figures 1 to 3As shown, this utility model embodiment provides a dispensing needle bending device 100, including a mounting base 1, a limiting base 2, and two bending structures 3. The mounting base 1 has a mounting structure 11 that is detachably fixed to the head end of the double needle 200. The limiting base 2 and the two bending structures 3 are both disposed on the mounting base 1. The limiting base 2 has a limiting groove 21 on the side facing the mounting structure 11, which allows the ends of the double needle 200 to extend into it simultaneously and restricts the ends of each needle from moving away from each other. Each bending structure 3 includes a bending member 31 that can drive the middle part of the corresponding needle to move away from each other.

[0031] In this invention, the head end of the double needle 200 is fixed by the mounting structure 11 on the mounting base 1, while the ends of the two needles extend into the limiting groove 21 of the limiting base 2. Then, the bending parts 31 of the two bending structures 3 drive the middle parts of the two needles away from each other, causing the ends of the two needles to tend to move away from each other. This exerts a force on the limiting base 2. Since the limiting base 2 is stationary and the limiting groove 21 restricts the ends of the two needles from moving away from each other, the ends of the two needles will move closer together under the reaction force of the limiting base 2, thereby achieving synchronous inward bending of the two needles. This invention, through the cooperation of the limiting base 2 and the two bending parts 31, simultaneously bends the two needles of the double needle 200 dispensing needle inward, greatly improving bending efficiency.

[0032] It should be noted that in some embodiments, such as Figure 2 and Figure 6 As shown, the dispensing needle bending device 100 also includes two limiting pins 4 disposed on the mounting base 1. Both limiting pins 4 are located between the mounting structure 11 and the limiting base 2, and are positioned close to the mounting structure 11. Each limiting pin 4 has an arc-shaped guide wall 41 that abuts against the side of each needle facing away from the other needle to restrict the needle's axial movement on the limiting pin 4. Since the head end of the double needle 200 is fixed by the mounting structure 11, and the ends of the double needle 200 are restricted from moving away from each other by the limiting groove 21, when the two bending components 31 drive the middle parts of each needle away from each other, two bends will occur in the needle. The bending position and angle of the bend near the head end of the needle can be adjusted by setting the limiting pins 4. Simultaneously, the arc-shaped guide wall 41 of the limiting pin 4 restricts the needle's axial movement on the limiting pin 4 during bending, thereby improving the bending effect.

[0033] The specific structure of the limiting groove 21 is not limited, as long as it ensures that the limiting groove 21 can limit the ends of each needle to move away from each other. For example, in some embodiments, such as... Figure 2 and Figure 5As shown, the limiting groove 21 includes a first groove segment 211, which has two limiting surfaces that can abut against the side of each needle tip facing away from the other needle tip to limit the needle tips from moving away from each other. With this configuration, since the two limiting surfaces abut against the side of each needle tip facing away from the other needle tip, when the tips of two needles tend to move away from each other, they will be prevented from moving away from each other by the obstruction of the two limiting surfaces.

[0034] Preferably, in some embodiments, such as Figure 2 and Figure 5 As shown, the limiting groove 21 further includes a second groove segment 212. The first groove segment 211 and the second groove segment 212 are connected sequentially from the bottom to the opening of the limiting groove 21. The second groove segment 212 has two guide surfaces, each of which is inclined outward from its connection with the first groove segment 211 to the opening, so that the bent section of each needle near its end can be moved along the corresponding guide surface. With this configuration, the bent section of each needle is moved along the corresponding guide surface under the drive of each bending member 31, so that after bending, each needle is in contact with the guide surface from the bent section to its end, thereby making the tilt angle of the needle end consistent with the tilt angle of the guide surface. Therefore, the operator can adjust the tilt angle of the needle end by changing the tilt angle of the guide surface.

[0035] Furthermore, in some embodiments, such as Figure 2 and Figure 5 As shown, the limiting seat 2 and the mounting structure 11 are spaced apart in the x-direction, and the limiting seat 2 is movable and adjustable relative to the mounting seat 1 in the x-direction. Since the tip of the needle generally extends into contact with the bottom of the limiting groove 21 to ensure that the bending position remains unchanged each time, the operator can adjust the position of the limiting seat 2 on the mounting seat 1 to adjust the distance between the limiting seat 2 and the mounting structure 11, thereby adjusting the bending position and angle of the needle.

[0036] Specifically, the limiting seat 2 has an elongated hole 22 for a screw to pass through, the elongated hole 22 extending in the x-direction, and the limiting seat 2 is connected and fixed to the mounting base 1 by the screw. With this configuration, by driving the screw to move within the elongated hole 22, the limiting seat 2 can be adjusted relative to the mounting base 1 in the x-direction.

[0037] The method by which the bending member 31 drives the needle is not limited; for example, in some embodiments, such as... Figure 1 , Figure 2 and Figure 4As shown, both bending structures 3 are movably disposed relative to the mounting base 1. The two bending structures 3 can move closer to or further away from each other, and each bending member 31 has an abutting end that can abut against the side of each needle facing the other needle. With this arrangement, the two bending structures 3 move closer to or further away from each other, causing the two bending members 31 to move closer to or further away from each other. Since the abutting end of each bending member 31 abuts against the middle of each needle, the middle portions of each needle can be driven to move further away from each other to form a bent section.

[0038] Furthermore, in some embodiments, such as Figure 2 As shown, both bending structures 3 are rotatably connected to the mounting base 1. This configuration allows the two bending structures 3 to move in a rotating manner, which results in a smaller range of motion compared to a translational method.

[0039] Furthermore, in some embodiments, such as Figure 1 and Figure 2 As shown, the bending structure 3 also includes a gripper 32 and a return spring 33. The gripper 32 is rotatably connected to the mounting base 1, and each bending member 31 is correspondingly mounted on the gripper 32. One end of the return spring 33 is connected to the side of the gripper 32 facing the mounting base 1, and the other end is connected to the mounting base 1. With this configuration, the operator can manually drive the two grippers 32 to move closer or further apart, thereby moving the two bending members 31 closer or further apart, causing the middle parts of each needle to move away from each other to achieve needle bending. After the bending operation is completed, the return spring 33 drives the gripper 32 to return to its original position.

[0040] To improve the efficiency of operators when performing bending operations, in some embodiments, such as Figure 1 , Figure 2 and Figure 4 As shown, the bending member 31 includes a mounting portion 311, a connecting portion 312, and a force-applying portion 313. The mounting portion 311 is connected to the gripping member 32. The force-applying portion 313 is connected to the mounting portion 311 via the connecting portion 312. The force-applying portion 313 has an abutting end. The connecting portions 312 of the two bending members 31 are staggered, allowing the force-applying portion 313 of each bending member 31 to apply force to a needle near the other bending member 31. This staggered arrangement allows the force-applying portion 313 of each bending member 31 to apply force to a needle near the other bending member 31. By driving the two bending members 31 closer together, the centers of the needles can be moved away from each other. Furthermore, the operator only needs to apply gripping force to the two gripping members 32 with one hand to drive the two bending members 31 closer together, resulting in higher efficiency.

[0041] To improve the consistency of bending results, in some embodiments, such as Figure 1 and Figure 2 As shown, the bending structure 3 also includes a set screw 34 that can abut against the side of the mounting base 1. The set screw 34 is located on the side of the grip 32 facing the mounting base 1 and is threadedly connected to the grip 32. With this configuration, the operator can continuously apply gripping force to drive the two grips 32 closer together, causing the set screw 34 to gradually approach the mounting base 1 until it abuts against the side of the mounting base 1, thus limiting the two grips 32 from moving closer together. This ensures that the travel distance of the two bending parts 31 remains constant during each bending operation, thereby improving the consistency of the bending effect. Simultaneously, the operator can rotate the set screw 34 to adjust the minimum distance between the grip 32 and the mounting base 1, thereby adjusting the bending position of the needle tip.

[0042] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A dispensing needle bending device, characterized in that, The device includes a mounting base, a limiting base, and two bending structures. The mounting base has a mounting structure that can be detachably fixed to the tip of the two needles. The limiting base and the two bending structures are both disposed on the mounting base. The limiting base has a limiting groove on the side facing the mounting structure, which allows the tips of the two needles to extend into the groove simultaneously and restricts the tips of the needles from moving away from each other. Each bending structure includes a bending member that can drive the middle part of the corresponding needle to move away from each other.

2. The dispensing needle bending device as described in claim 1, characterized in that, The limiting groove includes a first groove segment having two limiting surfaces that can abut against the side of each needle tip facing away from the other needle tip to limit the needle tips from moving away from each other.

3. The dispensing needle bending device as described in claim 2, characterized in that, The limiting groove also includes a second groove segment. The first groove segment and the second groove segment are connected sequentially from the bottom of the limiting groove to the opening of the groove. The second groove segment has two guide surfaces. Each guide surface is inclined outward from its connection with the first groove segment to the opening of the groove, so that the bent section of each needle near the end can be moved along the corresponding guide surface.

4. The dispensing needle bending device as described in claim 1, characterized in that, Both of the bending structures are movably disposed relative to the mounting base. The two bending structures can move closer to or further away from each other. Each bending member has an abutting end that can abut against the side of the middle of each needle facing the other needle.

5. The dispensing needle bending device as described in claim 4, characterized in that, Both of the bending structures are rotatably connected to the mounting base.

6. The dispensing needle bending device as described in claim 5, characterized in that, The bending structure also includes a gripping member and a return spring. The gripping member is rotatably connected to the mounting base. Each of the bending members is correspondingly mounted on the gripping member. One end of the return spring is connected to the side of the gripping member facing the mounting base, and the other end is connected to the mounting base.

7. The dispensing needle bending device as described in claim 6, characterized in that, The bending member includes an mounting part, a connecting part, and a force-applying part. The mounting part is connected to the gripping member, and the force-applying part is connected to the mounting part through the connecting part. An abutting end is formed on the force-applying part. The connecting parts of the two bending members are staggered so that the force-applying part of each bending member can apply force to the needle tip that is close to the other bending member.

8. The dispensing needle bending device as described in claim 7, characterized in that, The bending structure also includes a set screw that can abut against the side of the mounting base. The set screw is located on the side of the grip facing the mounting base and is connected to the grip by a thread.

9. The dispensing needle bending device as described in claim 1, characterized in that, It also includes two limiting pins disposed on the mounting base. The two limiting pins are both located between the mounting structure and the limiting base and are disposed close to the mounting structure. Each limiting pin has an arc-shaped guide wall that can abut against the side of each needle facing away from the other needle to restrict the needle from moving in the axial direction of the limiting pin.

10. The dispensing needle bending device as described in claim 1, characterized in that, The limiting seat and the mounting structure are arranged at intervals in the x-direction, and the limiting seat is movable and adjustable relative to the mounting seat in the x-direction.

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