Welding press and stringer

Abstract

The utility model discloses a kind of welding press net and string welding machine, the welding press net includes pressing plate and multiple pressing needle, the pressing plate has multiple crosspieces spaced along first direction arrangement;Multiple pressing needles are distributed at intervals on each crosspiece;Wherein, along the first direction, each pressing needle located at both ends can be at least with two welding strips opposite, the pressing needle in remaining row is misaligned arrangement in odd row and even row.Even more, on the one hand, the end of two, three, four or even more welding strips can be fixed by using each pressing needle at both ends to avoid position deviation, and the pressing ability of pressing needle can be improved;On the other hand, the pressing ability of the pressing needle in remaining row can be improved by misaligned arrangement of the pressing needle in remaining row, so that complex welding pressing needs can be met.

Description

Technical Field

[0001] This utility model relates to the field of battery welding technology, and more specifically, to a welding mesh pressing and stringing machine. Background Technology

[0002] The development of photovoltaic technology has driven the continuous growth of industries related to solar cells, leading to an increasing demand for solar energy equipment. In the production process of solar modules, solar cells need to be welded into strings. A solar cell stringer is a device used to weld inspected and qualified solar cells into strings using interconnecting strips, and then classifies and collects the welded strings.

[0003] During the stringing process of solar cells, a welding clamp is needed to press the solder strips together to ensure the reliability of the connection between the solder strips and the cells. However, in the manufacturing process of stacked solar cells, multiple closely spaced solder strips need to be pressed together during stringing, making existing welding clamps insufficient to meet the requirements. Utility Model Content

[0004] The purpose of this invention is to provide a new technical solution for welding mesh pressing and string welding machines.

[0005] According to one aspect of the present invention, a welded mesh pressing device is provided.

[0006] The welded mesh includes:

[0007] A pressure plate having a plurality of crossbars spaced apart along a first direction;

[0008] Multiple pressure needles, with multiple pressure needles spaced apart on each of the crossbars;

[0009] Along the first direction, each of the pressure pins located at both ends is able to be opposite to at least two welding strips, and the odd-numbered rows and even-numbered rows of the remaining pressure pins are staggered.

[0010] Optionally, along the first direction, the pressure pins at both ends are positioned opposite each other.

[0011] Optionally, along the first direction, at least some of the odd-numbered rows of the remaining rows of pressure needles are positioned opposite each other;

[0012] And / or, along the first direction, at least a portion of the even-numbered rows of the remaining rows of pressure needles are positioned opposite each other.

[0013] Optionally, along the first direction, the size of the pressure needles at both ends is larger than the size of the remaining pressure needles;

[0014] And / or, along a second direction, the plurality of said pressure needles in the same row are of equal size and / or equally spaced, the second direction being perpendicular to the first direction.

[0015] Optionally, each of the crossbars is provided with multiple through holes, and the multiple pressure pins are inserted through the multiple through holes in a one-to-one correspondence.

[0016] Optionally, it also includes a counterweight connected to the pressure plate.

[0017] Optionally, it may also include a first pad, which is connected to the bottom of the pressure plate, and the first pad is a magnetic element.

[0018] Optionally, a second pad is also included, which is connected to the bottom of the pressure plate, and the thickness of the second pad is not less than the thickness of the first pad.

[0019] Optionally, it also includes a plurality of reinforcing ribs, with at least one of the reinforcing ribs connecting any two adjacent crossbars.

[0020] Optionally, the pressure needle is elastically connected to the pressure plate.

[0021] Optionally, the reinforcing ribs are arranged obliquely along the first direction.

[0022] Optionally, the pressure needle includes a shaft, a pressure head, and a limiting part, wherein the pressure head and the limiting part are respectively connected to both ends of the shaft.

[0023] Optionally, the pressure needle further includes a blocking portion, which is sleeved on the side of the shaft near the limiting portion.

[0024] Optionally, an annular groove is formed on the outer periphery of the shaft, and the blocking part surrounds the annular groove.

[0025] Optionally, the pressure needle further includes an elastic portion, which is sleeved on the shaft, and both ends of the elastic portion abut against the pressure head and the pressure plate, respectively.

[0026] According to another aspect of the present invention, a string welding machine is provided, including the aforementioned welding pressure mesh.

[0027] One technical advantage of this utility model is:

[0028] By arranging the pressure pins along the first direction such that each pin at both ends is aligned with at least two weld strips, and the odd-numbered and even-numbered rows of pressure pins in the remaining rows are staggered, two, three, four, or even more weld strip ends can be pressed together using each pressure pin at both ends. This fixes the beginning and end ends of multiple weld strips to prevent positional displacement and improves the pressing capacity of the pressure pins. Furthermore, this staggered arrangement of the remaining rows of pressure pins enhances their pressing capacity, thus meeting complex welding pressing requirements.

[0029] Other features and advantages of the present invention will become clear from the following detailed description of exemplary embodiments of the present invention with reference to the accompanying drawings. Attached Figure Description

[0030] The accompanying drawings, which form part of this specification, illustrate embodiments of the present invention and, together with the specification, serve to explain the principles of the present invention.

[0031] Figure 1 This is a top view of a welded mesh according to an embodiment of the present invention;

[0032] Figure 2 This is a side view of a welded mesh according to an embodiment of the present utility model;

[0033] Figure 3 This is a bottom view of a welded mesh according to an embodiment of the present invention;

[0034] Figure 4 This is a schematic diagram of a welding strip pressure pin connection according to an embodiment of the present utility model;

[0035] Figure 5 yes Figure 4 A magnified view of point A in the image;

[0036] Figure 6 This is a schematic diagram of a pressure needle according to an embodiment of the present utility model;

[0037] Figure 7 This is a schematic diagram of another pressure needle according to an embodiment of the present invention.

[0038] Explanation of reference numerals in the attached figures:

[0039] 1. Pressure plate; 11. Crossbar; 111. Through hole; 2. Pressure needle; 21. Shaft; 211. Annular groove; 22. Pressure head; 23. Limiting part; 24. Blocking part; 25. Elastic part; 3. Counterweight block; 4. First pad block; 5. Second pad block; 6. Reinforcing rib. Detailed Implementation

[0040] Various exemplary embodiments of the present invention will now be described in detail with reference to the accompanying drawings. It should be noted that, unless otherwise specifically stated, the relative arrangement, numerical expressions, and values ​​of the components and steps set forth in these embodiments do not limit the scope of the present invention.

[0041] The following description of at least one exemplary embodiment is merely illustrative and is in no way intended to limit the invention or its application or use.

[0042] Technologies and equipment known to those skilled in the art may not be discussed in detail, but where appropriate, such technologies and equipment should be considered part of the specification.

[0043] In all the examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not as limitations. Therefore, other examples of exemplary embodiments may have different values.

[0044] It should be noted that similar labels and letters in the following figures indicate similar items; therefore, once an item is defined in one figure, it does not need to be discussed further in subsequent figures.

[0045] This invention provides a welding pressure mesh that can arrange relatively dense pressure needles 2 to meet complex welding requirements.

[0046] like Figures 1 to 3 As shown, the welded mesh provided by this utility model includes:

[0047] Pressure plate 1, the pressure plate 1 having a plurality of crossbars 11 spaced apart along a first direction;

[0048] Multiple pressure needles 2 are distributed at intervals on each of the crossbars 11;

[0049] Along the first direction, each of the pressure pins 2 located at both ends is able to be opposite to at least two welding strips, and the odd-numbered rows and even-numbered rows of the remaining rows of pressure pins 2 are staggered.

[0050] like Figures 1 to 3 As shown, the pressure plate 1 is typically made of high-strength, high-temperature-resistant metal materials, such as stainless steel, to ensure that it can withstand high temperatures and certain pressures during welding without deformation. The overall dimensions of the pressure plate 1 can be designed according to the specifications of the actual workpiece to be welded, and its length and width should be able to completely cover the area of ​​the weld strip to be welded.

[0051] like Figure 1 and Figure 3As shown, the pressure plate 1 has multiple horizontal bars 11 arranged at intervals along a first direction. That is, the multiple horizontal bars 11 are arranged along the first direction, and there is a gap between any two adjacent horizontal bars 11. The setting of this gap can increase the light transmission area of ​​the pressure mesh, thereby facilitating the welding process.

[0052] The first direction can be determined according to the actual welding requirements, and it is usually the length direction of the workpiece. For example, when welding battery cells and welding strips, the first direction is usually the extension direction of the welding strip, such as the longitudinal direction in the figure, so that the pressure plate 1 can cover the welding strip.

[0053] like Figures 1 to 3 As shown, multiple through holes 111 can be set at intervals on the crossbar 11, and multiple pressure pins 2 can be inserted into the multiple through holes 111 one by one; or multiple pressure pins 2 can be directly connected to the crossbar 11 at intervals, both of which can meet the subsequent pressing requirements.

[0054] like Figure 4 and Figure 5 As shown, along the first direction, i.e., the longitudinal direction in the figure, each pressure pin 2 located at both ends can simultaneously face at least two welding strips to achieve clamping. That is, Figure 4 and Figure 5 Each pressure pin 2 in the first row can simultaneously press against one end of at least two welding strips, while each pressure pin 2 in the last row can simultaneously press against the other end of at least two welding strips. The first and last rows of pressure pins 2, positioned opposite each other, can press against the same welding strips. Thus, each pressure pin 2 at both ends can simultaneously press against the ends of two, three, four, or even more welding strips, thereby fixing the beginning and end ends of multiple welding strips to prevent positional shifts and improving the pressing capacity of the pressure pins 2.

[0055] like Figure 4 and Figure 5 As shown, along the first direction, i.e., the longitudinal direction in the figure, the odd-numbered and even-numbered rows of the remaining rows of pressure pins 2 (excluding the pressure pins at both ends) are staggered. That is, in the remaining rows of pressure pins 2, any two adjacent rows of pressure pins 2 are staggered to improve the clamping capacity of the remaining rows of pressure pins 2, thereby meeting the complex welding clamping requirements.

[0056] In one embodiment, the upper row of pressure pins 2 and the lower row of pressure pins 2 can be configured to be opposite to the corresponding same solder strip. Specifically, for the middle region of the same solder strip, the upper row of pressure pins 2 and the lower row of pressure pins 2 should be located respectively above and below the solder strip, and aligned with the center of the solder strip. For example, for Figure 5The first welding strip in the first row, the first pressure pin 2 in the second row and the first pressure pin 2 in the fourth row are respectively pressed above and below the first welding strip. Through the combined action of the two pressure pins 2, it can be ensured that the first welding strip remains stable during the welding process and will not shift vertically.

[0057] Similarly, for Figure 5 The second welding strip is positioned with the first pressure pin 2 in the third row and the first pressure pin 2 in the fifth row pressing above and below the second welding strip, respectively. Through the combined action of the two pressure pins 2, the second welding strip can be kept stable during the welding process and will not shift vertically.

[0058] In this way, on the one hand, the welding strip can always be kept in the accurate position during the welding process, which greatly improves the welding accuracy and effectively avoids welding defects such as false welding and misaligned welding, thereby significantly improving the welding quality; on the other hand, for the two welding strips that are pressed by each of the two pressure pins 2 at both ends, one can be pressed by the odd-numbered rows of the remaining pressure pins 2, and the other can be pressed by the even-numbered rows of the remaining pressure pins 2. This can not only reliably fix multiple closely arranged welding strips, but also reduce the number of pressure pins 2 and improve the processing accuracy.

[0059] In one embodiment, when each of the pressure pins 2 at both ends simultaneously presses three welding strips, one strip can be pressed by a portion of the odd-numbered rows of the remaining pressure pins 2, another strip can be pressed by the even-numbered rows of the remaining pressure pins 2, and yet another strip can be pressed by the remaining portion of the odd-numbered rows of the remaining pressure pins 2; alternatively, one strip can be pressed by a portion of the even-numbered rows of the remaining pressure pins 2, another strip can be pressed by the odd-numbered rows of the remaining pressure pins 2, and yet another strip can be pressed by the remaining portion of the even-numbered rows of the remaining pressure pins 2.

[0060] When each pressure pin 2 at both ends simultaneously presses multiple welding strips, different pressing schemes can be designed according to the actual situation, which will not be elaborated here.

[0061] Furthermore, the welding pressure mesh of this invention provides a stable and uniform clamping force to the welding strip through the close contact between the pressure pins 2 and the welding strip. Each pressure pin 2 at both ends acts simultaneously on at least two welding strips, which enhances the stability of the entire welding strip system and prevents changes in the entire welding strip layout due to loosening at one end. The remaining rows of pressure pins 2 are arranged in a staggered manner to clamp the corresponding welding strips from multiple areas above and below, further preventing the welding strips from moving due to thermal expansion or external forces during welding, and also saving the number of pressure pins 2 while ensuring clamping capacity.

[0062] Furthermore, the welding pressure mesh of this invention, through its robust structure and reasonable pressure needle layout, can effectively resist external interference. The pressure plate 1 and the crossbar 11 provide stable support for the pressure needles 2, enabling them to firmly fix the welding strip. Even under external interference, the pressure needles 2 can maintain precise positioning and stable pressing of the welding strip, ensuring that the welding process is not affected, improving the welding's anti-interference ability, and further guaranteeing the stability and continuity of production.

[0063] Optionally, along the first direction, the pressure needles 2 at both ends are positioned opposite each other.

[0064] like Figure 4 and Figure 5 As shown, each pressure pin 2 in the first row can simultaneously press against one end of two welding strips, while each pressure pin 2 in the last row can simultaneously press against the other end of two welding strips. The first and last rows of pressure pins 2, positioned opposite each other, can press against the same two welding strips respectively. Thus, each pressure pin 2 at both ends can press against the beginning and end ends of two welding strips, thereby fixing the beginning and end ends of the welding strips to prevent positional displacement and improving the pressing capacity of the pressure pins 2.

[0065] Optionally, along the first direction, at least some of the odd-numbered rows of the remaining rows of pressure needles 2 are positioned opposite each other;

[0066] And / or, along the first direction, at least a portion of the even-numbered rows of the remaining rows of pressure needles 2 are positioned opposite each other.

[0067] Specifically, along the first direction, i.e., the longitudinal direction in the figure, some of the odd-numbered rows of pressure pins 2 can be positioned opposite each other, so that these odd-numbered rows of pressure pins 2 with opposite positions can be used to press the same weld strip. The remaining odd-numbered rows of pressure pins 2 with staggered positions can press other weld strips, thereby improving their pressing ability.

[0068] like Figure 5 As shown, it is also possible to set all the odd-numbered rows of pressure pins 2 in the remaining rows to be in opposite positions along the first direction, i.e., the longitudinal direction in the figure, so that all the odd-numbered rows of pressure pins 2 in opposite positions can be used to press the same welding strip, thereby achieving a reliable pressing effect on the welding strip.

[0069] Similarly, along the first direction, i.e., the longitudinal direction in the figure, some of the even-numbered rows of pressure pins 2 can be positioned opposite each other, so that these even-numbered rows of pressure pins 2 with opposite positions can be used to press the same weld strip. The remaining even-numbered rows of pressure pins 2 with staggered positions can press other weld strips, thereby improving their pressing ability.

[0070] like Figure 5As shown, it is also possible to set all the even-numbered rows of pressure pins 2 in the remaining rows to be in opposite positions along the first direction, i.e., the longitudinal direction in the figure, so that all the even-numbered rows of pressure pins 2 in opposite positions can be used to press the same welding strip, thereby achieving a reliable pressing effect on the welding strip.

[0071] In one embodiment, such as Figure 4 and Figure 5 As shown, along the first direction, the odd-numbered rows of the remaining pressure pins 2 are positioned opposite each other, and the even-numbered rows are positioned opposite each other, with the odd-numbered rows and even-numbered rows staggered to form an alternating arrangement. Thus, for each of the two weld strips simultaneously pressed by each pressure pin 2 at both ends, one is pressed by the odd-numbered rows of the remaining pressure pins 2, and the other is pressed by the even-numbered rows of the remaining pressure pins 2. This allows for reliable fixing of multiple weld strips while reducing the number of pressure pins 2 and improving processing accuracy.

[0072] Optionally, along the first direction, the corresponding positions of the upper row of pressure needles 2 and the lower row of pressure needles 2 are opposite each other in the remaining pressure needles 2. That is, as shown in the figure... Figure 4 and Figure 5 As shown, along the first direction, the odd-numbered rows of the remaining presser needles 2 are respectively positioned opposite each other, and the even-numbered rows are respectively positioned opposite each other, and the odd-numbered rows and even-numbered rows are staggered to form an alternating arrangement.

[0073] Optionally, along the first direction, the size of the pressure needles 2 located at both ends is larger than the size of the remaining pressure needles 2;

[0074] And / or, along the second direction, the plurality of pressure needles 2 in the same row are of equal size and / or have equal spacing, the second direction being perpendicular to the first direction.

[0075] like Figure 3 As shown, the size of the pressure pins 2 at both ends is larger than the size of the other pressure pins 2, so that each pressure pin 2 at both ends can simultaneously face the ends of at least two welding strips to perform corresponding clamping. The two ends can be... Figure 3 The first and last rows shown can also be Figure 3 The first two rows and the last two rows shown are designed to meet different compression requirements.

[0076] like Figure 1 and Figure 3 As shown, the pressure needles 2 in the same horizontal row are set to have the same size and / or the same spacing, that is, the multiple through holes 111 on the same horizontal bar 11 are set to have the same size and / or the same spacing, so as to facilitate the rapid insertion of multiple pressure needles 3 on the same horizontal row, and at the same time, to achieve the pressing of multiple evenly arranged welding strips, thereby improving the pressing capacity of the welding pressure mesh.

[0077] Optionally, each of the crossbars 11 is provided with a plurality of through holes 111, and the plurality of pressure pins 2 are inserted one-to-one with the plurality of through holes 111.

[0078] like Figure 1 As shown, multiple through holes 111 can be arranged side by side on each crossbar 11. The number of through holes 111 is determined according to the number of pressure needles 2, and the size of the through holes 111 should be slightly larger than the size of the pressure needles 2 so that the pressure needles 2 can be smoothly inserted, while ensuring that the pressure needles 2 have a certain amount of room to move in the through holes 111, but without affecting the positioning accuracy due to excessive gaps.

[0079] The multiple through holes 111 arranged side by side on each horizontal bar 11 can be arranged at equal intervals, that is, the distance between any two adjacent through holes 111 on the same horizontal bar 11 is equal, so that multiple uniformly arranged welding strips can be pressed simultaneously by the multiple through holes 111 on the horizontal bar 11, thereby improving the pressing ability of the welding pressure mesh.

[0080] The pressure pin 2 can be made of a material with high hardness and good wear resistance, such as cemented carbide, to ensure that it is not easily worn during long-term use, thereby ensuring positioning accuracy. The pressure pin 2 is mostly slender cylindrical in shape, and its top can be designed to be conical to better insert into the gap between the welding strips and achieve precise positioning of the welding strips. Multiple pressure pins 2 are set and corresponding to multiple through holes 111, that is, one pressure pin 2 is inserted into each through hole 111.

[0081] Optionally, it also includes a counterweight 3, which is connected to the pressure plate 1.

[0082] like Figure 1 As shown, at least one counterweight 3 can be connected to each of the left and right ends of the pressure plate 1. The counterweight 3 can enhance the weight of the pressure plate 1. During the pressing process, the weight of the counterweight 3 enables the pressure plate 1 to press the welding strip more stably, thus ensuring the reliable progress of the welding process. The counterweight 3 is usually located at the top of the pressure plate 1, i.e., above, to avoid affecting the welding strip below.

[0083] Optionally, it also includes a first pad 4, which is connected to the bottom of the pressure plate 1, and the first pad 4 is a magnetic element.

[0084] like Figure 3 As shown, at least one first pad 4 can be connected to the bottom of the pressure plate 1, that is, the left and right sides below. The first pad 4 is made of magnetic material, so that the first pad 4 can form a magnetic attraction with the magnet on the conveyor belt below, so as to ensure the stability of the position of the pressure plate 1.

[0085] The number, thickness, and arrangement of the first pad 4 can be adjusted to limit the pressure plate 1 while preventing the pressure plate 1 from being difficult to remove after welding is completed.

[0086] Optionally, it also includes a second pad 5, which is connected to the bottom of the pressure plate 1, and the thickness of the second pad 5 is not less than the thickness of the first pad 4.

[0087] like Figure 3 As shown, at least one second pad 5 can be connected to the bottom of the pressure plate 1, that is, the left and right sides below. The second pad 5 can be made of elastic materials such as silicone, rubber, and plastic, so that the second pad 5 can play a certain role in buffering and shock absorption during the pressing of the welding strip, avoiding the risk of damage and cracking of the battery cell due to excessive local stress, and helping to improve the safety of the pressing process.

[0088] In one embodiment, a textured surface can be provided on the surface of the second pad 5 to enhance its surface friction, thereby increasing its anti-slip effect and reducing the risk of the pressure plate 1 slipping.

[0089] The thickness of the second pad 5 can be set to be greater than or equal to the thickness of the first pad 4, so as to ensure that the second pad 5 has a buffering and shock-absorbing effect during the pressing of the welding strip.

[0090] Optionally, it also includes a plurality of reinforcing ribs 6, with at least one reinforcing rib 6 connecting any two adjacent crossbars 11.

[0091] like Figure 1 As shown, along the first direction, i.e. the longitudinal direction in the figure, at least one reinforcing rib 6 is provided between any two adjacent horizontal bars 11, so that the reinforcing rib 6 can enhance the structural stability of the pressure plate 1, thereby ensuring the structural stability and reliability of the welded mesh.

[0092] Optionally, the reinforcing rib 6 is arranged at an angle along the first direction.

[0093] like Figure 1 As shown, the multiple reinforcing ribs 6 are not arranged in a straight line along the first direction, i.e., longitudinally, but form an angle with the first direction. Along the first direction, the multiple reinforcing ribs 6 are arranged obliquely and staggered to reduce the obstruction of welding points on nearby weld strips, avoid incomplete welding or detachment, and thus improve welding quality.

[0094] Optionally, the pressure needle 2 is elastically connected to the pressure plate 1.

[0095] Specifically, a spring can be first fitted onto the shaft 21 of the pressure needle 2, and then the spring can be abutted against the pressure plate 1; alternatively, the spring can be directly fixed onto the pressure plate 1, and then the other end of the spring can be abutted against the pressure needle 2. Both methods can achieve an elastic connection between the two.

[0096] Optionally, the pressure needle 2 includes a shaft 21, a pressure head 22, and a limiting part 23, wherein the pressure head 22 and the limiting part 23 are respectively connected to both ends of the shaft 21.

[0097] like Figure 6 As shown, the pressure head 22 is located at the end of the shaft 21 near the solder strip, and the pressure head 22 is used to press the solder together. The side of the pressure head 22 near the solder strip may have a recess to reduce its contact area with the solder strip, thereby preventing damage to the solder strip and also preventing molten solder paste from adhering to the pressure head 22 during the soldering process.

[0098] The limiting part 23 is located at the end of the shaft 21 away from the solder strip, that is, closer to the pressure plate 1. The limiting part 23 can extend out of the pressure plate 1, so as to reduce the risk of the shaft 21 disengaging from the pressure plate 1 during movement while connecting the pressure needle 2.

[0099] Optionally, the pressure needle 2 further includes a blocking part 24, which is sleeved on the side of the shaft 21 near the limiting part 23.

[0100] like Figure 6 and Figure 7 As shown, the blocking part 24 can be a retaining ring or a retaining ring. An annular groove 211 can be formed on the side of the shaft 21 near the limiting part 23, and the blocking part 24 can be connected to the annular groove 211. The inner diameter of the blocking part 24 can be set to be smaller than the outer diameter of the limiting part 23, so that when the pressure needle 2 is connected to the pressure plate 1 by fitting the blocking part 24 into the connecting groove on the pressure plate 1, the cooperation between the blocking part 24 and the limiting part 23 can also block the axial movement of the shaft 21, thereby preventing the pressure needle 2 from drifting.

[0101] Optionally, an annular groove 211 is provided on the outer periphery of the shaft 21, and the blocking part 24 surrounds the annular groove 211.

[0102] like Figure 6 As shown, the annular groove 211 is adapted to the blocking part 24 to facilitate the installation of the blocking part 24. The blocking part 24 can be a complete retaining ring or retaining ring, or it can be multiple spaced blocks. Multiple blocks surrounding the annular groove 211 can also achieve axial limiting and blocking of the limiting part 23 and the shaft 21.

[0103] Optionally, the pressure needle 2 further includes an elastic part 25, which is sleeved on the shaft 21, and the two ends of the elastic part 25 abut against the pressure head 22 and the pressure plate 1, respectively.

[0104] like Figure 7 As shown, the elastic part 25 can be a spring or a sheet, which is sleeved on the shaft 21. During the clamping process, the pressure plate 1 can apply pressure to the elastic part 25, causing the elastic part 25 to push the pressure head 22 toward the welding strip and continuously clamp it. After welding is completed, the pressure applied to the pressure plate 1 is removed, and the elastic part 25 can elastically reset and drive the pressure head 22 away from the welding strip to the initial position, so as to facilitate the rapid removal of the welding mesh.

[0105] This utility model also provides a string welding machine, including the above-mentioned welding pressure mesh, and the string welding machine has all the technical effects of the welding pressure mesh.

[0106] The above embodiments mainly describe the differences between the various embodiments. As long as the different optimization features between the various embodiments are not contradictory, they can be combined to form a better embodiment. For the sake of brevity, they will not be elaborated here.

[0107] While specific embodiments of the present invention have been described in detail by way of examples, those skilled in the art should understand that the above examples are for illustrative purposes only and are not intended to limit the scope of the present invention. Those skilled in the art should understand that modifications can be made to the above embodiments without departing from the scope and spirit of the present invention. The scope of the present invention is defined by the appended claims.

Claims

1. A welded screen, characterized in that The application relates to a welding pressure net, comprising: a pressing plate (1) having a plurality of crosspieces (11) arranged at intervals along a first direction; a plurality of pressing needles (2) arranged at intervals on each crosspiece (11); wherein, along the first direction, each pressing needle (2) at both ends can be opposite to at least two welding strips, and the odd-numbered rows and the even-numbered rows of the remaining rows of the pressing needles (2) are arranged in staggered mode.

2. The welded screen of claim 1, wherein, Along the first direction, the positions corresponding to the pressing needles (2) at both ends are opposite.

3. The welded screen of claim 1, wherein, Along the first direction, at least part of the positions corresponding to the odd-numbered rows of the remaining rows of the pressing needles (2) are opposite. Along the first direction, at least part of the positions corresponding to the even-numbered rows of the remaining rows of the pressing needles (2) are opposite.

4. The welded screen of claim 1, wherein, Along the first direction, the size of the pressing needles (2) at both ends is larger than that of the remaining pressing needles (2). Along a second direction, the sizes and / or intervals of the pressing needles (2) in the same row are equal, and the second direction is perpendicular to the first direction.

5. The welded screen of claim 1, wherein, Each crosspiece (11) is provided with a plurality of through holes (111), and a plurality of pressing needles (2) are arranged in one-to-one correspondence with the through holes (111).

6. The welded screen of claim 1, wherein, The application further comprises a counterweight (3) connected to the pressing plate (1).

7. The welded screen of claim 1, wherein, The application further comprises a first pad (4) connected to the bottom of the pressing plate (1), and the first pad (4) is a magnetic piece.

8. The welded screen of claim 7, wherein, The application further comprises a second pad (5) connected to the bottom of the pressing plate (1), and the thickness of the second pad (5) is not less than that of the first pad (4).

9. The welded screen of claim 1, wherein, The application further comprises a plurality of reinforcing ribs (6), and at least one reinforcing rib (6) is arranged between any adjacent two crosspieces (11).

10. The welded screen of claim 9, wherein, Along the first direction, the reinforcing ribs (6) are arranged in an inclined mode.

11. The welded screen of claim 1, wherein, The pressing needle (2) is elastically connected to the pressing plate (1).

12. The welded screen of claim 1, wherein, The pressing needle (2) comprises a shaft body (21), a pressing head (22) and a limiting part (23), and the pressing head (22) and the limiting part (23) are respectively connected to both ends of the shaft body (21).

13. The welded screen of claim 12, wherein, The pressing needle (2) further comprises a blocking part (24) sleeved on one side of the shaft body (21) close to the limiting part (23).

14. The welded screen of claim 13, wherein, An annular groove (211) is formed in the outer periphery of the shaft body (21), and the blocking part (24) is wrapped into the annular groove (211).

15. The welded screen of claim 12, wherein, The pressing needle (2) further comprises an elastic part (25) sleeved on the shaft body (21), and both ends of the elastic part (25) are respectively abutted against the pressing head (22) and the pressing plate (1).

16. A stringer welding machine characterized by, The application further comprises the welding pressure net according to any one of claims 1 to 15.

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