Hot air welding device

Abstract

The hot air welding device comprises two side plates which are symmetrically arranged, a plurality of conveying rollers which are arranged side by side are arranged between the two side plates, a first feeding plate is horizontally arranged above the conveying rollers located at the front end of the conveying direction in the conveying direction, the first feeding plate is fixedly connected to the two side plates, and a first clamping groove is formed in the bottom of the first feeding plate; a second feeding plate is vertically arranged on the side, facing the tail end of the conveying direction, of the first feeding plate, the second feeding plate is located above the conveying rollers, a second clamping groove is vertically formed in the side, in the width direction, of the second feeding plate, and the second clamping groove is a T-shaped groove; a welding machine is installed on the side, facing the front end of the conveying direction, of the second feeding plate and detachably installed on a welding machine fixing assembly. A pressing roller is rotationally arranged on the side, facing the tail end of the conveying direction, of the second feeding plate. According to the scheme, the purpose of uniform and effective product welding can be achieved, and the difference of macromolecular product joint peel strength detection data is reduced.

Description

TECHNICAL FIELD

[0001] The application relates to the technical field of welding peel strength detection, and particularly relates to a hot air welding device. BACKGROUND

[0002] Peel strength refers to the maximum force required for materials pasted together to be peeled from a contact surface at a unit width. At present, when the joint peel strength of a high polymer product is detected, hot air welding is mainly performed manually. Due to different operation methods, phenomena such as welding through, welding deformation and virtual welding often occur in the welding process, resulting in large differences in the joint peel strength detection data of the high polymer product. CONTENT OF THE UTILITY MODEL

[0003] In order to solve the above problems in the prior art, the application provides a hot air welding device which adopts an automatic welding mode to avoid possible defects in manual operation, achieves the purpose of uniform and effective product welding, and reduces the difference in the joint peel strength detection data of the high polymer product.

[0004] In order to achieve the above purpose, the application adopts the following technology:

[0005] The hot air welding device comprises two symmetrical side plates, a plurality of conveying rollers arranged side by side between the two side plates, a first feeding plate arranged horizontally above the conveying rollers at the front end of the conveying direction, the first feeding plate being fixedly connected to the two side plates, and a first clamping groove being formed in the bottom of the first feeding plate, the width of the first clamping groove being consistent with the width of the sample, and the minimum vertical distance from the top surface of the first clamping groove to the conveying roller being consistent with the thickness of the sample.

[0006] A second feeding plate is vertically arranged on the side of the first feeding plate facing the end of the conveying direction, the second feeding plate being located above the conveying rollers, a second clamping groove being vertically formed in one side of the width direction of the second feeding plate, the second clamping groove being a T-shaped groove, the large end of the T-shaped groove being used for matching the sample, the small end of the T-shaped groove being located outside the large end of the T-shaped groove, and the first clamping groove and the second clamping groove being correspondingly arranged in the width direction.

[0007] A welding machine is mounted on the side of the second feeding plate facing the front end of the conveying direction, the air outlet of the welding machine being located below the second feeding plate and facing the end of the conveying direction, the width of the air outlet of the welding machine being greater than the width of the sample, the welding machine being arranged at the middle of the width direction of the first clamping groove, the welding machine being detachably mounted on a welding machine fixing assembly, and the welding machine fixing assembly being used for fixing the welding machine and adjusting the height and angle of the welding machine.

[0008] A pressing roller is rotatably arranged on the side of the second feeding plate facing the end of the conveying direction, the pressing roller being movably arranged along the conveying direction, the axis of the pressing roller being parallel to the width direction of the second feeding plate, and the minimum vertical distance from the pressing roller to the conveying roller being equal to twice the thickness of the sample.

[0009] The beneficial effects of this utility model are as follows: it overcomes the defects of false welds, weld penetration, and deformation caused by inconsistent welding height, welding temperature, and welding speed when manually welding with a hot air welding gun. By adopting a fully automatic welding method, it avoids various defects of manual operation, achieves the goal of uniform and effective product welding, and obtains complete and effective welded samples for product testing. This reduces the difference in the peel strength test data of polymer products and improves the effectiveness of the test data. Attached Figure Description

[0010] The accompanying drawings described herein are merely illustrative of selected embodiments, not all possible implementations, and are not intended to limit the scope of this invention.

[0011] Figure 1 This is a perspective view of the overall structure of an embodiment of this application.

[0012] Figure 2 This is a perspective view of the overall structure of an embodiment of this application.

[0013] Figure 3 This is a side view of the overall structure of an embodiment of this application.

[0014] Figure 4 This is a perspective view of the overall structure of an embodiment of this application.

[0015] Figure 5 yes Figure 2 A magnified view of a portion of point A in the middle. Detailed Implementation

[0016] To make the objectives, technical solutions and advantages of the present utility model clearer, the implementation methods of the present utility model will be described in detail below with reference to the accompanying drawings. However, the embodiments described in the present utility model are only some embodiments of the present utility model, and not all embodiments.

[0017] This application provides a hot air welding apparatus, such as... Figures 1-5 As shown, the sample includes two symmetrically arranged side plates 1, with multiple conveying rollers arranged side by side between the two side plates 1. The rotation speed of the conveying rollers is adjustable, that is, the sample conveying speed is adjustable. A first feeding plate 2 is horizontally arranged above the conveying roller at the front end of the conveying process along the conveying direction. The first feeding plate 2 is used to deliver sample one. The first feeding plate 2 is fixedly connected to the two side plates 1, and a first slot 21 is opened at the bottom of the first feeding plate 2. The width of the first slot 21 is the same as the width of the sample, and the minimum vertical distance from the top surface of the first slot 21 to the conveying roller is the same as the thickness of the sample. In this embodiment, the first feeding plate 2 is located in the middle between the two side plates 1. When the conveying rollers convey the sample, sample one located in the first slot 21 can always maintain a centered alignment under the constraint of the first slot 21.

[0018] The first feeding plate 2 is vertically provided with a second feeding plate 3 on the side facing the end of the conveying direction, the second feeding plate 3 is used for delivering sample two, the structure of sample one is consistent with that of sample two, the second feeding plate 3 is located above the conveying roller, a second clamping groove 31 is vertically formed on one side of the width direction of the second feeding plate 3, the second clamping groove 31 is a T-shaped groove, the large end of the T-shaped groove is used for matching with the sample, and the small end of the T-shaped groove is located outside the large end of the T-shaped groove, so that the sample two can only be removed from the bottom of the second feeding plate 3. The first clamping groove 21 and the second clamping groove 31 are correspondingly arranged in the width direction, that is, the second feeding plate 3 is also arranged in the middle between the two side plates 1, so that the sample one and the sample two can be kept in the state of central alignment, so that the sample one and the sample two can be completely overlapped when welding the sample one and the sample two.

[0019] The second feeding plate 3 is provided with a welding machine on the side facing the front end of the conveying direction, the welding machine air outlet adopts a duckbill flat air outlet, the welding machine air outlet is located below the second feeding plate 3 and faces the end of the conveying direction, the width of the welding machine air outlet is greater than the width of the sample, in this embodiment, the width of the sample is 50mm, the width of the welding machine air outlet is 60mm, and the welding machine is arranged corresponding to the middle of the width direction of the first clamping groove 21, so as to ensure that the sample is uniformly heated within the welding width range, the welding machine is detachably mounted on a welding machine fixing assembly 5, the welding machine fixing assembly 5 is used for fixing the welding machine and adjusting the height and angle of the welding machine, according to the different bending degrees of the sample two below the second feeding plate 3 due to the different high molecular materials, the best installation position of the welding machine air outlet acting on the sample two is also different, the height or angle of the welding machine can be adjusted to switch the welding machine air outlet to the corresponding best installation position according to the different high molecular materials.

[0020] The second feeding plate 3 is provided with a pressing roller 4 on the side facing the end of the conveying direction, the pressing roller 4 is movably arranged along the conveying direction, the axis of the pressing roller 4 is parallel to the width direction of the second feeding plate 3, and the minimum value of the vertical distance between the pressing roller 4 and the conveying roller is equal to twice the thickness of the sample, the pressing roller 4 is used for automatically pressing the welding position of the sample back and forth after welding, so as to ensure that the welding is fixed and there is no phenomenon of hollowing and false welding.

[0021] Two sample fixing grooves are correspondingly formed on one side of the width direction of the sample one and the sample two, the sample fixing grooves are used for avoiding the relative movement or deflection of the sample one and the sample two during welding, so that the two samples can be completely overlapped, and the welding precision is improved.

[0022] In use, sample one and sample two are respectively fed into the first feeding plate 2 and the second feeding plate 3, and the side of sample one and sample two provided with the sample fixing groove faces the front end of the conveying direction. The sample one is moved so that the side of sample one provided with the sample fixing groove is located below the second feeding plate 3. The sample two is moved so that the side of sample two provided with the sample fixing groove is tightly combined with the side of sample one provided with the sample fixing groove. At this time, the sample fixing grooves of sample one and sample two are completely overlapped. The fixing member is inserted into the sample fixing groove to fix sample one and sample two.

[0023] The conveying roller is started to rotate, and sample one is moved to the front end of the conveying direction under the driving of the conveying roller. Since the front ends of sample one and sample two are fixed, the movement of sample one will drive sample two located in the second feeding plate 3 to gradually move downward until sample one and sample two are tightly combined. Before sample one and sample two are tightly combined, the welding machine is started, the welding temperature is set by the welding machine, the welding machine air outlet is arranged below the second feeding plate 3 and faces the end of the conveying direction, that is, the welding machine air outlet faces the contact surface of sample two which will be overlapped with sample one to complete the welding of sample one and sample two.

[0024] The welded part continues to move to the end of the conveying direction under the driving of the conveying roller. The pressing roller 4 arranged on the side of the second feeding plate 3 facing the end of the conveying direction automatically presses the welding part of sample one and sample two back and forth to ensure the welding and fixation.

[0025] After sample one and sample two completely complete the above steps, the welded sample is obtained.

[0026] Specifically, the side plates 1 are upwardly extended to form the protruding plates 11 arranged on the side of the second feeding plate 3 facing the end of the conveying direction. The protruding plates 11 are provided with the sliding grooves 111 penetrating along the conveying direction. The outer side of one of the side plates 1 is provided with the rack 112 along the conveying direction. One end of the pressing roller 4 penetrates through the sliding groove 111 and is coaxially provided with the gear 41. The gear 41 is engaged with the rack 112. The outer side of the other side plate 1 is connected with the mounting platform 113. The mounting platform 113 is provided with the mounting seat 114 moving along the conveying direction. The mounting seat 114 is fixedly provided with the first motor 42. The output end of the first motor 42 penetrates through the sliding groove 111 and is coaxially connected with the other end of the pressing roller 4. The first motor 42 is started to drive the reciprocating rotation of the pressing roller 4. Under the engagement of the gear 41 and the rack 112, the pressing roller 4 is reciprocally moved while rotating to automatically press the welding part of sample one and sample two back and forth. While the pressing roller 4 is reciprocally moved, the pressing roller 4 drives the mounting seat 114 to synchronously reciprocally move, that is, the first motor 42 is also synchronously reciprocally moved.

[0027] Specifically, the welding machine fixing assembly 5 comprises two sliders 51 symmetrically arranged, the sliders 51 are arranged to move in the vertical direction, a rotating rod 52 is rotatably connected between the sliders 51, the axis of the rotating rod 52 is parallel to the width direction of the first clamping groove 21, two clamping plates 53 are symmetrically and movably sleeved on the rotating rod 52, and the clamping plates 53 are used for clamping the welding machine. The movement of the sliders 51 in the vertical direction drives the movement of the two clamping plates 53 in the vertical direction, thereby realizing the adjustment of the height of the welding machine. The rotation of the rotating rod 52 drives the rotation of the two clamping plates 53, thereby realizing the adjustment of the angle of the welding machine.

[0028] Specifically, a pair of arc-shaped grooves 511 are formed on the inner side of the slider 51 symmetrically to the rotating rod 52, the two ends of the rotating rod 52 are provided with positioning blocks 521, a pair of positioning holes are formed through the positioning blocks 521 symmetrically to the rotating rod 52, when the rotating rod 52 rotates, the movement track of the positioning hole is consistent with the structure of the arc-shaped groove 511, and the positioning hole is used for installing a positioning member to avoid the continuous rotation of the rotating rod 52. The rotation of the rotating rod 52 is used to realize the adjustment of the angle of the welding machine, and after the adjustment is completed, the cooperation of the positioning member, the positioning hole and the arc-shaped groove 511 makes the rotating rod 52 unable to continue to rotate.

[0029] Specifically, a spring 522 is sleeved between the clamping plate 53 and the positioning block 521, the top of the clamping plate 53 extends inward to form a guide rod 531, the middle part of the rotating rod 52 is provided with a guide column 523, guide holes are formed on the two sides of the guide column 523 corresponding to the guide rod 531, and the guide rod 531 is used for cooperating with the guide holes to prevent the relative rotation of the clamping plate 53 and the rotating rod 52 when the clamping plate 53 moves.

[0030] Specifically, a fixed frame 6 is arranged above the conveying roller, one of the sliders 51 is arranged on a vertical screw rod 7, the screw rod 7 is rotatably arranged between the fixed frame 6 and one of the side plates 1, the screw rod 7 is driven to rotate by a second motor 8, and the other slider 51 is arranged on a vertical rod arranged between the fixed frame 6 and the other side plate 1.

[0031] In application, the above only describes the preferred embodiments of the present application, and is not used to limit the present application. Obviously, those skilled in the art can make various modifications and changes to the present application without departing from the spirit and scope of the present application.

Claims

1. A hot air welding apparatus, characterized in that, It includes two symmetrically arranged side plates (1), and multiple conveying rollers arranged side by side between the two side plates (1). A first feeding plate (2) is horizontally arranged above the conveying roller at the front end of the conveying and along the conveying direction. The first feeding plate (2) is fixedly connected to the two side plates (1), and a first slot (21) is opened at the bottom of the first feeding plate (2). The width of the first slot (21) is consistent with the width of the sample, and the minimum vertical distance from the top surface of the first slot (21) to the conveying roller is consistent with the thickness of the sample. The first feeding plate (2) has a second feeding plate (3) vertically arranged on one side facing the end of the conveying direction. The second feeding plate (3) is located above the conveying roller. The second feeding plate (3) has a second slot (31) vertically opened on one side of the width direction. The second slot (31) is a T-shaped slot, and the large end of the T-shaped slot is used to match the sample. The small end of the T-shaped slot is located outside the large end of the T-shaped slot. The first slot (21) and the second slot (31) are correspondingly arranged in the width direction. A welding machine is installed on the side of the second feeding plate (3) facing the front end of the conveying direction. The welding machine's air outlet is located below the second feeding plate (3) and facing the end of the conveying direction. The width of the welding machine's air outlet is greater than the width of the sample. The welding machine is set in the middle of the width direction of the first slot (21). The welding machine is detachably installed on a welding machine fixing component (5). The welding machine fixing component (5) is used to fix the welding machine and adjust the height and angle of the welding machine. The second feeding plate (3) is rotatably provided with a pressure roller (4) on one side facing the end of the conveying direction. The pressure roller (4) is moved along the conveying direction. The axis of the pressure roller (4) is parallel to the width direction of the second feeding plate (3), and the minimum vertical distance between the pressure roller (4) and the conveying roller is equal to twice the thickness of the sample.

2. The hot air welding apparatus according to claim 1, characterized in that, The side plates (1) all extend upward to form a convex plate (11), and the convex plate (11) is located on the side of the second feeding plate (3) facing the end of the conveying direction. The convex plate (11) is provided with a groove (111) through the conveying direction. A rack (112) is installed on the outer side of one of the side plates (1) along the conveying direction. A gear (41) is coaxially installed on one end of the pressure roller (4) through the groove (111). The gear (41) meshes with the rack (112). An installation platform (113) is connected to the outer side of the other side plate (1). An installation seat (114) is provided on the installation platform (113) along the conveying direction. A first motor (42) is fixedly installed on the installation seat (114). The output end of the first motor (42) is coaxially connected to the other end of the pressure roller (4) through the groove (111).

3. The hot air welding apparatus according to claim 1, characterized in that, The welding machine fixing assembly (5) includes two symmetrically arranged sliders (51), both sliders (51) are moved in the vertical direction, and a rotating rod (52) is rotatably connected between the sliders (51). The axis of the rotating rod (52) is parallel to the width direction of the first slot (21). Two clamping plates (53) are symmetrically and relatively moved on the rotating rod (52), and the clamping plates (53) are used to clamp the welding machine.

4. The hot air welding apparatus according to claim 3, characterized in that, The inner side of the slider (51) is symmetrical to the rotating rod (52) with a pair of arc-shaped grooves (511). Both ends of the rotating rod (52) are provided with positioning blocks (521). The positioning blocks (521) are symmetrical to the rotating rod (52) with a pair of positioning holes. When the rotating rod (52) rotates, the movement trajectory of the positioning holes is consistent with the structure of the arc-shaped grooves (511). The positioning holes are used to install positioning parts to prevent the rotating rod (52) from continuing to rotate.

5. A hot air welding apparatus according to claim 3, characterized in that, A spring (522) is sleeved between the clamping plate (53) and the positioning block (521). The top of the clamping plate (53) extends inward to form a guide rod (531). A guide post (523) is provided in the middle of the rotating rod (52). Guide holes are provided on both sides of the guide post (523) corresponding to the guide rod (531). The guide rod (531) is used to cooperate with the guide hole to prevent the clamping plate (53) and the rotating rod (52) from rotating relative to each other when the clamping plate (53) moves.

6. A hot air welding apparatus according to claim 3, characterized in that, A fixed frame (6) is mounted above the conveyor roller. One slider (51) is mounted on a vertically arranged screw (7). The screw (7) is rotatably positioned between the fixed frame (6) and one of the side plates (1). The screw (7) is driven to rotate by a second motor (8). Another slider (51) is mounted on a vertical rod (9). The vertical rod (9) is positioned between the fixed frame (6) and another side plate (1).

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