Height adjusting mechanism for heat exchange fin flanging

Abstract

This utility model relates to a heat exchanger fin flange height adjustment mechanism, comprising an upper mold body, an upper template, several flange punches, a first wedge block, a second wedge block, and several adjusting ejector pins; the several flange punches are axially movable within the upper template; the upper template contains the first and second wedge blocks; a first adjusting mechanism for adjusting the lateral position of the first wedge blocks is provided on the side of the upper template; the upper mold body has several sliding through holes through which the adjusting ejector pins pass; the second wedge block has a through hole, and the first wedge block has a strip groove; the adjusting ejector pin passes through the strip groove and the through hole from top to bottom and abuts against the upper end of the flange punch; this utility model uses the first and second wedge blocks for overall adjustment of the flange punches; it also provides adjusting ejector pins, and adjusts the position of the adjusting ejector pins through the second adjusting mechanism to achieve fine adjustment of individual flange punches. This allows for convenient height adjustment of the flange on the heat exchanger fin.

Description

Technical Field

[0001] This utility model relates to the field of stamping and flanging technology, specifically to a heat exchanger fin flanging height adjustment mechanism. Background Technology

[0002] The heat exchanger fins are provided with stamped flanged holes for the heat exchange tubes to pass through. If the flanged heights of the various flanged holes are inconsistent, the heat exchanger fins will not be stacked tightly enough after being stacked, which will affect the heat exchange effect. The flanged height directly affects the quality of the heat exchanger.

[0003] Traditional stamping flanging dies use shims of different thicknesses for replacement to adjust the flanging height. However, due to the limited shim sizes, adjustment can only be made according to the thickness difference between adjacent shims, resulting in insufficient precision. Wedge blocks are also used for uniform adjustment, but this method cannot achieve fine-tuning of the flanging height of individual flanging punches.

[0004] In view of this, the inventor of this utility model conducted in-depth research on the aforementioned defects in the prior art, which led to the creation of this case. Utility Model Content

[0005] The main purpose of this invention is to provide a heat exchanger fin flange height adjustment mechanism, which can simultaneously adjust the flange height of multiple flange punches, and can also fine-tune individual flange punches, making it very convenient to use.

[0006] To achieve the above objectives, the solution of this utility model is:

[0007] A heat exchanger fin flange height adjustment mechanism includes an upper mold body, an upper template, several flange punches, a first wedge block, a second wedge block, and several adjusting ejector pins. The upper template is fixedly connected to the lower part of the upper mold body. Several flange punches are axially movable within the upper template, and a spring is provided within the upper template to push the flange punches upward. A first wedge block and a second wedge block with inclined surfaces abutting each other are provided within the upper template. The upper surface of the first wedge block abuts against the upper template, and the lower surface of the second wedge block abuts against the upper end of the flange punch. The second wedge block moves along the axial direction of the flange punch as the first wedge block moves laterally. A first adjusting mechanism for adjusting the lateral position of the first wedge block is provided on the side of the upper template.

[0008] The upper mold body is provided with a plurality of sliding through holes, through which the adjusting ejector pin passes; the second wedge block is provided with through holes corresponding to the flanging punches, and the first wedge block is provided with strip grooves corresponding to the through holes and through which the adjusting ejector pin passes; the adjusting ejector pin passes through the strip grooves and the through holes from top to bottom and abuts against the upper end of the flanging punches; the upper part of the upper mold body is provided with a second adjusting mechanism for individually adjusting the axial position of the adjusting ejector pin.

[0009] Furthermore, the through hole communicates with the side of the second wedge block; the strip groove communicates with the side of the first wedge block.

[0010] Furthermore, the first adjustment mechanism includes a first screw and a first rotating seat fixed to the side of the upper mold body; the first screw has an annular groove that is rotatably connected to the first rotating seat; the first screw is threadedly connected to the first wedge block.

[0011] Furthermore, the second wedge block has first limiting seats at both ends for restricting the lateral movement of the second wedge block. The first limiting seats are inverted L-shaped and fixedly connected to the upper template. The second wedge block has first latches at both ends. The first latches engage with the first limiting seats and can move along the axial direction of the flanging punch.

[0012] Furthermore, the second adjustment mechanism includes a set of inclined blocks corresponding to the adjusting ejector pins. Each set of inclined blocks includes a third wedge block and a fourth wedge block that abut against each other. The fourth wedge block abuts against the adjusting ejector pin. A second limiting seat is also provided above the upper mold body, located at both ends of the fourth wedge block and used to limit the lateral movement of the fourth wedge block. The second limiting seat is inverted L-shaped. A limiting cover is also fixedly connected to the upper mold body. The limiting cover is provided with a receiving groove facing downward and accommodating the third wedge block and the fourth wedge block. The upper surface of the third wedge block abuts against the bottom of the receiving groove. Each third wedge block is threadedly connected to a second screw. A second rotating seat is also provided above the upper mold body, and all the second screws are rotatably connected to the second rotating seat.

[0013] With the above structure, the heat exchanger flange height adjustment mechanism of this utility model has at least the following beneficial effects:

[0014] 1. The position of the first wedge block is adjusted by the first adjustment mechanism, thereby changing the downward pushing depth of the second wedge block. This process is used to adjust a number of flanging punches as a whole. After adjustment, if individual flanging punches need to be adjusted, the axial position of one or more adjusting pins is adjusted individually by the second adjustment mechanism. This allows for a further fine downward adjustment of the axial position of the flanging punch, thus making a slight correction to the downward height of individual flanging punches.

[0015] Second, since the second wedge block is provided with a through hole and the first wedge block is provided with a strip groove, the up-and-down movement of the second wedge block and the lateral movement of the first wedge block will not be hindered by the adjusting pin, and the adjusting pin can independently adjust the axial position.

[0016] Compared with existing technologies, this invention uses a first wedge block and a second wedge block for overall adjustment of the flanging punch; it also provides an adjusting pin that passes through the first and second wedge blocks, and adjusts the position of the adjusting pin through a second adjusting mechanism to achieve fine adjustment of the individual flanging punch. This makes it convenient to adjust the height of the flanging on the heat exchanger plate. Attached Figure Description

[0017] Figure 1 This is a cross-sectional schematic diagram of the heat exchanger fin flange height adjustment mechanism.

[0018] Figure 2 This is a cross-sectional exploded view of the heat exchanger fin flange height adjustment mechanism.

[0019] Figure 3 This is a top view of the structure after the first and second wedge blocks come into contact.

[0020] Figure 4 This is a top view of the structure of the first wedge block.

[0021] Figure 5 This is a top view of the second wedge block.

[0022] Figure 6 This is a three-dimensional structural diagram of the inclined block assembly and the limiting cover.

[0023] Figure 7 This is a three-dimensional structural diagram of the second adjustment mechanism.

[0024] In the picture:

[0025] Upper mold body 1; sliding through hole 11; upper template 2; first limiting seat 21; flanging punch 3; spring 31; first wedge block 41; strip groove 411; second wedge block 42; through hole 421; first retaining lug 422; adjusting ejector pin 5; first adjusting mechanism 6; first screw 61; first rotating seat 62; second adjusting mechanism 7; third wedge block 71; fourth wedge block 72; second limiting seat 73; limiting cover 74; receiving groove 741; second screw 75; second rotating seat 76. Detailed Implementation

[0026] To further explain the technical solution of this utility model, the following detailed description is provided through specific embodiments.

[0027] like Figures 1 to 7As shown, this is a heat exchanger flange height adjustment mechanism according to the present invention, including an upper mold body 1, an upper template 2, a plurality of flange punches 3, a first wedge block 41, a second wedge block 42, and a plurality of adjusting ejector pins 5; the upper template 2 is fixedly connected to the lower part of the upper mold body 1; the plurality of flange punches 3 are axially movably arranged in the upper template 2, and the upper template 2 is provided with a spring 31 for pushing the flange punches 3 upward; the upper template 2 is provided with a first wedge block 41 and a second wedge block 42 whose inclined surfaces abut against each other, the upper surface of the first wedge block 41 abuts against the upper template 2; the lower surface of the second wedge block 42 abuts against the upper end of the flange punch 3, and the second wedge block 42 moves along the axial direction of the flange punch 3 as the first wedge block 41 moves laterally; the side of the upper template 2 is provided with a first adjusting mechanism 6 for adjusting the lateral position of the first wedge block 41.

[0028] The upper mold body 1 is provided with a plurality of sliding through holes 11, through which the adjusting ejector pin 5 passes; the second wedge block 42 is provided with through holes 421 corresponding to the flanging punch 3, and the first wedge block 41 is provided with a strip groove 411 corresponding to the through hole 421 and through which the adjusting ejector pin 5 passes; the adjusting ejector pin 5 passes through the strip groove 411 and the through hole 421 from top to bottom and abuts against the upper end of the flanging punch 3; the upper part of the upper mold body 1 is provided with a second adjusting mechanism 7 for individually adjusting the axial position of the adjusting ejector pin 5.

[0029] Thus, the heat exchanger flange height adjustment mechanism of this utility model adjusts the position of the first wedge block 41 through the first adjustment mechanism 6, thereby changing the downward pushing depth of the second wedge block 42, and thus adjusting a number of flange punches 3 as a whole. After the first wedge block 41 and the second wedge block 42 are adjusted, if it is necessary to adjust individual flange punches 3, the axial position of one or more adjusting pins 5 can be adjusted individually through the second adjustment mechanism 7, so that the axial position of the flange punch 3 is further finely adjusted downward.

[0030] Since the second wedge block 42 is provided with a through hole 421 and the first wedge block 41 is provided with a strip groove 411, the up-and-down movement of the second wedge block 42 and the lateral movement of the first wedge block 41 will not be hindered by the adjusting pin 5, and the adjusting pin 5 can independently adjust the axial position.

[0031] Preferably, the through hole 421 communicates with the side of the second wedge block 42; the strip groove 411 communicates with the side of the first wedge block 41. This facilitates wire cutting of the through hole 421 and the strip groove 411.

[0032] Preferably, the first adjusting mechanism 6 includes a first screw 61 and a first rotating seat 62 fixed to the side of the upper mold body 1; the first screw 61 has an annular groove rotatably connected to the first rotating seat 62; the first screw 61 is threadedly connected to the first wedge block 41. During adjustment, the first screw 61 is driven to rotate relative to the first rotating seat 62, while the axial position of the first screw 61 remains stationary relative to the first rotating seat 62. As the first screw 61 rotates, the first wedge block 41 moves laterally in the front-back direction.

[0033] Preferably, the second wedge block 42 is provided with first limiting seats 21 at both ends to restrict the lateral movement of the second wedge block 42. The first limiting seats 21 are inverted L-shaped and fixedly connected to the upper template 2. The second wedge block 42 has first latches 422 at both ends. The first latches 422 engage with the first limiting seats 21 and can move along the axial direction of the flanging punch 3. In this way, the second wedge block 42 is first installed on the upper end of the upper template 2 through the first limiting seats 21, and then the upper template 2 is fixedly installed on the lower surface of the upper mold body 1, making the assembly of the second wedge block 42 and the first wedge block 41 simpler.

[0034] Preferably, such as Figure 6 As shown, the second adjustment mechanism 7 includes a set of inclined blocks corresponding one-to-one with the adjusting ejector pin 5. Each set of inclined blocks includes a third wedge block 71 and a fourth wedge block 72 that abut against each other. The fourth wedge block 72 abuts against the adjusting ejector pin 5. A second limiting seat 73 is also provided above the upper mold body 1, located at both ends of the fourth wedge block 72 and used to limit the lateral movement of the fourth wedge block 72. The second limiting seat 73 is inverted L-shaped. A limiting cover 74 is also fixedly connected to the upper mold body 1. The limiting cover 74 is provided with a receiving groove 741 that faces downward and accommodates the third wedge block 71 and the fourth wedge block 72. The upper surface of the third wedge block 71 abuts against the bottom of the receiving groove 741. Each third wedge block 71 is threadedly connected to a second screw 75. A second rotating seat 76 is also provided above the upper mold body 1. All second screws 75 are rotatably connected to the second rotating seat 76.

[0035] Compared with the prior art, this utility model uses a first wedge block 41 and a second wedge block 42 for overall adjustment of the flange punch 3; it also provides an adjusting pin 5 passing through the first wedge block 41 and the second wedge block 42, and adjusts the position of the adjusting pin 5 through a second adjusting mechanism 7 to achieve fine adjustment of the flange height on the heat exchanger plate.

[0036] The above embodiments and figures are not intended to limit the product form and style of this utility model. Any appropriate changes or modifications made by those skilled in the art should be considered as not departing from the patent scope of this utility model.

Claims

1. A heat exchanging fin flange height adjusting mechanism, characterized by, The device includes an upper mold body, an upper template, several flanging punches, a first wedge block, a second wedge block, and several adjusting ejector pins. The upper template is fixedly connected to the lower part of the upper mold body. The several flanging punches are axially movable within the upper template, and a spring is provided within the upper template to push the flanging punches upward. A first wedge block and a second wedge block with inclined surfaces abutting each other are provided within the upper template. The upper surface of the first wedge block abuts against the upper template, and the lower surface of the second wedge block abuts against the upper end of the flanging punch. The second wedge block moves along the axial direction of the flanging punch as the first wedge block moves laterally. A first adjusting mechanism for adjusting the lateral position of the first wedge block is provided on the side of the upper template. The upper mold body is provided with a plurality of sliding through holes, through which the adjusting ejector pin passes; the second wedge block is provided with through holes corresponding to the flanging punches, and the first wedge block is provided with strip grooves corresponding to the through holes and through which the adjusting ejector pin passes; the adjusting ejector pin passes through the strip grooves and the through holes from top to bottom and abuts against the upper end of the flanging punches; the upper part of the upper mold body is provided with a second adjusting mechanism for individually adjusting the axial position of the adjusting ejector pin.

2. The heat transfer fin turn-down height adjustment mechanism of claim 1 wherein, The through hole communicates with the side of the second wedge block; the strip groove communicates with the side of the first wedge block.

3. The heat transfer fin turn -up height adjustment mechanism of claim 1 wherein, The first adjustment mechanism includes a first screw and a first rotating seat fixed to the side of the upper mold body; the first screw has an annular groove that is rotatably connected to the first rotating seat; the first screw is threadedly connected to the first wedge block.

4. The heat transfer fin turn-down height adjustment mechanism of claim 1 wherein, The second wedge block has first limiting seats at both ends for restricting the lateral movement of the second wedge block. The first limiting seats are inverted L-shaped and fixedly connected to the upper template. The second wedge block has first latches at both ends. The first latches engage with the first limiting seats and can move along the axial direction of the flanging punch.

5. The fin-turning height adjusting mechanism according to claim 1, wherein The second adjustment mechanism includes a set of inclined blocks corresponding to the adjusting ejector pins. Each set of inclined blocks includes a third wedge block and a fourth wedge block that abut against each other. The fourth wedge block abuts against the adjusting ejector pin. A second limiting seat is also provided above the upper mold body, located at both ends of the fourth wedge block and used to limit the lateral movement of the fourth wedge block. The second limiting seat is inverted L-shaped. A limiting cover is also fixedly connected to the upper mold body. The limiting cover is provided with a receiving groove facing downward and accommodating the third wedge block and the fourth wedge block. The upper surface of the third wedge block abuts against the bottom of the receiving groove. Each third wedge block is threadedly connected to a second screw. A second rotating seat is also provided above the upper mold body, and all the second screws are rotatably connected to the second rotating seat.

Images