Die structure capable of rapidly switching fin production states

Abstract

The utility model provides a die structure capable of quickly switching fin production states, which relates to the technical field of dies, and comprises an upper die holder and a lower die holder, the upper die holder is movably arranged above the lower die holder, the bottom of the upper die holder is provided with a female die, the top of the lower die holder is provided with a sub-die, the sub-die is internally provided with a plurality of groups of slots; the ejector pins and the punch are designed to be of a structure capable of moving up and down, the switching groove is formed in the lower die base and used for installing the inserting plate, the inserting plate is a flat plate or a step-shaped plate, when the flat plate is inserted, all the ejector pins can be pushed, so that the punch is ejected out of the sub-die, and all produced fins are bridge fins; the step groove position of the step-shaped plate avoids the ejector pin at the position, and the ejector pin is pushed to eject out of the punch at other plane positions, so that the required composite fin with a flat fin and a bridge fin is produced, only the inserting plate needs to be replaced in the whole process, the yield is improved, and meanwhile, the labor intensity of workers is also reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to mould technical field especially relates to a mould structure of quick switching fin production state. BACKGROUND

[0002] The heat exchanger fin mould is important production equipment of heat exchanger industry, is the key equipment in refrigeration industry, in the heat exchange effect of fin, its surface shape is one of important parameters of influencing fin heat exchange rate, and one of fin surface shape is called "bridge piece shape", commonly known as "bridge fin", because its surface shape can improve the effect of heat exchange under the premise of not affecting the ventilation rate of heat exchange fin group, so it is widely used in fin mould, and because of the particularity of production product, often "bridge fin" and the fin without "bridge piece shape", commonly known as "flat fin", are combined for use, in the original production process, the flat fin is produced for a period of time, then the mould is switched to produce the bridge fin, finally the flat fin and the bridge fin are combined by the assembly department for use, such production process wastes the production time, and the heat exchange effect is reduced because the flat fin and the bridge fin are separated.

[0003] Specifically, the existing production process has the following defects: the flat fin and the bridge fin need to be produced by changing different moulds, which wastes time and increases the burden of workers; the flat fin and the bridge fin are separated during assembly, which makes it difficult to install the copper pipe, and the heat exchange effect is reduced after separation, therefore, the utility model provides a mould structure for quickly switching the production state of the fin to solve the problems in the prior art. SUMMARY

[0004] In view of the above problems, the utility model provides a mould structure for quickly switching the production state of the fin, which only needs to replace the plugboard during the whole production process, without replacing the mould, thereby improving the yield and greatly reducing the labor intensity of workers.

[0005] To achieve the purpose of the utility model, the utility model realizes the following technical scheme: a mould structure for quickly switching the production state of the fin, comprising an upper die holder and a lower die holder, the upper die holder is movably arranged above the lower die holder, and the bottom of the upper die holder is provided with a female mould, the top of the lower die holder is provided with a male mould, the inside of the male mould is provided with a plug groove, and the plug groove is provided with multiple groups, the inside of the plug groove is movably provided with a thimble, and the top of the thimble is provided with a punch;

[0006] The top of the lower die holder and the male mould are provided with a switching groove, the switching groove is communicated with the plug groove, the lower end of the thimble extends to the inside of the switching groove, the inside of the switching groove is used for inserting the plugboard, the upper end surface of the plugboard is matched with the thimble, and the plugboard is one of a flat plate and a stepped plate.

[0007] Further improvement lies in that one end of the plug-in plate is provided with a fixing bolt, and the plug-in plate is fixed with the lower die seat through the fixing bolt.

[0008] Further improvement lies in that the upper side of the ejector pin is provided with a thread, the lower end of the punch is provided with a bolt pipe, the bolt pipe is sleeved on the upper end of the ejector pin and is matched with the thread.

[0009] Further improvement lies in that the middle ends of the two sides of the plug-in groove are both provided with a spring groove, the middle ends of the two sides of the ejector pin are both provided with a limiting piece, the limiting piece extends to the inside of the spring groove, and the upper side of the limiting piece and the upper side of the inside of the spring groove are connected with a spring.

[0010] Further improvement lies in that when the plug-in plate is a flat plate, the upper end surface of the plug-in plate is a horizontal plane.

[0011] Further improvement lies in that when the plug-in plate is a stepped plate, the upper end surface of the plug-in plate is provided with a stepped groove, and the stepped groove is provided with a plurality of groups.

[0012] The beneficial effects of the present application are as follows:

[0013] 1. The ejector pin and the punch are designed as a structure capable of moving up and down, a switching groove is arranged on the lower die seat and used for installing a plug-in plate, the plug-in plate is a flat plate or a stepped plate, when the flat plate is inserted, all the ejector pins can be pushed to make the punch be ejected from the sub-mold, so that all the produced fins are bridge fins, when the stepped plate is inserted, the stepped groove of the stepped plate avoids the ejector pin at the position, and the ejector pin at other positions pushes the punch to be ejected, so that the composite fin with the flat fin and the bridge fin is produced, the whole process only needs to replace the plug-in plate, the mold does not need to be replaced, the yield is improved, and the labor intensity of workers is greatly reduced.

[0014] 2. The composite fin produced by the stepped plate is integrated, the probability of increasing air resistance due to stacking misalignment is reduced, the assembly difficulty of workers is reduced, the fin integration increases the heat exchange efficiency of the product. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 It is a schematic view of a fin;

[0016] Figure 2 It is a front view of the present application;

[0017] Figure 3 It is an installation schematic view of the ejector pin of the present application;

[0018] Figure 4 It is a side view of the present application;

[0019] Figure 5 It is a schematic view of a flat plate of the present application;

[0020] Figure 6 The step type plate is a schematic view of the utility model.

[0021] Wherein: 1, the upper die holder; 2, the lower die holder; 3, the female die; 4, the male die; 5, the ejector pin; 6, the punch; 7, the plugboard; 8, the fixing bolt; 9, the bolt pipe; 10, the spring groove; 11, the limiting piece; 12, the spring; 13, the step groove. DETAILED DESCRIPTION

[0022] In order to deepen the understanding of the utility model, the utility model will be further described in the following combined with examples, and the present embodiment is only used to explain the utility model, and does not constitute the limitation of the protection scope of the utility model. Example One

[0023] According to Figure 2 , 3 , 4, 5, 6, the present embodiment proposes a kind of mold structure of fast switching fin production state, including upper die holder 1 and lower die holder 2, the upper die holder 1 is movably arranged in the upper of lower die holder 2, and the bottom of upper die holder 1 is equipped with female die 3, the top of lower die holder 2 is equipped with male die 4, the inside of male die 4 is equipped with plug-in slot, and plug-in slot is equipped with multiple groups, the inside of plug-in slot is movably equipped with ejector pin 5, and the top of ejector pin 5 is equipped with punch 6;

[0024] The top of lower die holder 2 and male die 4 are equipped with switching groove, and switching groove is communicated with plug-in slot, the lower end of ejector pin 5 extends to the inside of switching groove, plug-in plate 7 is used for inserting in the inside of switching groove, the upper end surface of plug-in plate 7 is matched with ejector pin 5, plug-in plate 7 is one of flat plate and step type plate. When using, ejector pin 5 and punch 6 are designed as the structure that can move up and down, switching groove is arranged on lower die holder 2, for installing plug-in plate 7, plug-in plate 7 is flat plate or step type plate, when inserting flat plate, all ejector pin 5 can be pushed, so that punch 6 is ejected from male die 4, so that the fin produced is all bridge fin, when inserting step type plate, the position of step groove 13 of step type plate avoids ejector pin 5 in this position, other plane position pushes ejector pin 5 and ejects punch 6, to produce the composite fin that needs to have flat fin and bridge fin, the whole process only needs to replace plug-in plate 7, without replacing mold, improve the output, also greatly reduce the labor intensity of worker.

[0025] One end of plug-in plate 7 is equipped with fixing bolt 8, and plug-in plate 7 is fixed with lower die holder 2 through fixing bolt 8. When using, plug-in plate 7 is inserted into switching groove, and the position of plug-in plate 7 is fixed by fixing bolt 8 and lower die holder 2.

[0026] The upper side of the ejector pin 5 is provided with a thread, the lower end of the punch 6 is provided with a bolt pipe 9, the bolt pipe 9 is sleeved on the upper end of the ejector pin 5 and is matched with the thread. In use, the punch 6 is screwed onto the ejector pin 5 through the lower bolt pipe 9, which facilitates installation or disassembly.

[0027] The middle end of the both sides of the slot is provided with a spring groove 10, the middle end of the both sides of the ejector pin 5 is provided with a limiting piece 11, and the limiting piece 11 extends to the inside of the spring groove 10, and the upper side of the limiting piece 11 and the upper side of the inside of the spring groove 10 are connected with a spring 12. In use, when a flat plate is inserted, all the ejector pins 5 can be pushed, so that the punch 6 is ejected from the sub-mold 4, so that all the fins produced are bridge fins. When not in use, pull out the flat plate, under the action of the spring 12 pushing the limiting piece 11, the ejector pin 5 goes down, and the punch 6 retracts into the slot.

[0028] When the plug plate 7 is a flat plate, the upper end surface of the plug plate 7 is a horizontal surface. The thickness of the switching groove is designed to be 30mm; when a 29.0mm flat plate is inserted, the height of all the ejector pins 5 and punches 6 is at the lowest point, and they will not contact the female mold 3 of the upper mold base 1, so that all the fins produced are flat fins; when a 29.8mm flat plate is inserted, all the ejector pins 5 are lifted, so that all the punches 6 are extended, and the height is at the highest point, all the punches 6 will cut into the female mold 3, so that all the fins produced are bridge fins. Example two

[0029] According to Figure 2 , 3 , 4, 5, 6, the embodiment proposes a mold structure for quickly switching the fin production state, which comprises an upper mold base 1 and a lower mold base 2, the upper mold base 1 is movably arranged above the lower mold base 2, and the bottom of the upper mold base 1 is provided with a female mold 3, the top of the lower mold base 2 is provided with a sub-mold 4, the inside of the sub-mold 4 is provided with a slot, and the slot is provided with multiple groups, the inside of the slot is movably provided with an ejector pin 5, and the upper side of the ejector pin 5 is provided with a punch 6.

[0030] The top of the lower die seat 2 and the sub-mold 4 are provided with a switching groove, and the switching groove is communicated with the insertion groove, the lower end of the ejector pin 5 extends to the inside of the switching groove, the inside of the switching groove is used for inserting the insertion plate 7, the upper end surface of the insertion plate 7 is matched with the ejector pin 5, and the insertion plate 7 is one of a flat plate and a stepped plate. In use, the ejector pin 5 and the punch 6 are designed to be movable up and down, the switching groove is arranged on the lower die seat 2 and used for mounting the insertion plate 7, the insertion plate 7 is a flat plate or a stepped plate, when the flat plate is inserted, all the ejector pins 5 can be pushed to make the punch 6 be ejected from the sub-mold 4, so that all the fins produced are bridge fins, when the stepped plate is inserted, the stepped groove 13 of the stepped plate avoids the ejector pin 5 at the position, and the ejector pin 5 at other positions is pushed to eject the punch 6, so that the composite fin with flat fins and bridge fins is produced, the whole process only needs to replace the insertion plate 7, without the need to replace the mold, the yield is improved, and the labor intensity of workers is greatly reduced.

[0031] One end of the insertion plate 7 is provided with a fixing bolt 8, and the insertion plate 7 is fixed with the lower die seat 2 through the fixing bolt 8. In use, the insertion plate 7 is inserted into the switching groove and fixed with the lower die seat 2 through the fixing bolt 8, so that the position of the insertion plate 7 is fixed.

[0032] The upper side of the outer side of the ejector pin 5 is provided with a thread, the lower end of the punch 6 is provided with a bolt pipe 9, and the bolt pipe 9 is sleeved on the upper end of the ejector pin 5 and matched with the thread. In use, the punch 6 is screw-mounted on the ejector pin 5 through the lower bolt pipe 9, so that the punch 6 is conveniently mounted or dismounted.

[0033] The middle ends of the two sides of the insertion groove are both provided with a spring groove 10, the middle ends of the two sides of the ejector pin 5 are both provided with a limiting piece 11, the limiting piece 11 extends to the inside of the spring groove 10, and the upper side of the limiting piece 11 and the upper side of the inside of the spring groove 10 are connected with a spring 12. In use, when the flat plate is inserted, all the ejector pins 5 can be pushed to make the punch 6 be ejected from the sub-mold 4, so that all the fins produced are bridge fins, when not used, the flat plate is pulled out, under the action of the spring 12 pushing the limiting piece 11, the ejector pin 5 is downward, and the punch 6 is retracted into the insertion groove.

[0034] When the insertion plate 7 is a stepped plate, the upper end surface of the insertion plate 7 is provided with a stepped groove 13, and the stepped groove 13 is provided with a plurality of groups. The thickness of the switching groove is designed to be 30 mm, when a stepped plate is inserted, the thickness at the position needing to be cut is 29.8 mm, and the thickness at the position (the position of the stepped groove 13) not needing to be cut is 29.0 mm, so that the stepped groove 13 of the stepped plate avoids the ejector pin 5 at the position, and the ejector pin 5 at other positions is pushed to eject the punch 6, so that the composite fin with flat fins and bridge fins is produced.

[0035] The mold structure of the quick switching fin production state designs the ejector pin 5 and the punch 6 as a structure that can move up and down, sets a switching groove on the lower mold base 2, is used for installing the plugboard 7, the plugboard 7 is a flat plate or a stepped plate, when the flat plate is inserted, all the ejector pins 5 can be pushed, the punch 6 is ejected from the sub-mold 4, so that the produced fin is all bridge fin, when the stepped plate is inserted, the stepped groove 13 position of the stepped plate avoids the ejector pin 5 in this position, other flat position pushes the ejector pin 5 and ejects the punch 6, thereby producing the composite fin that needs to have flat fin and bridge fin, the whole process only needs to replace the plugboard 7, does not need to replace the mold, improves the output, also greatly reduces the labor intensity of workers. And the composite fin produced by the stepped plate is integrated, reduces the probability of increasing the wind resistance because of stacking misplacement, also reduces the difficulty of workers assembling, the fin integration increases the heat exchange efficiency of the product.

[0036] The basic principle, main features and advantages of the present application are shown and described above. Those skilled in the art should understand that the present application is not limited by the above examples, and the above examples and descriptions in the specification are only to illustrate the principles of the present application. Without departing from the spirit and scope of the present application, various changes and improvements can be made to the present application, and these changes and improvements all fall within the scope of the present application. The scope of protection of the present application is defined by the appended claims and their equivalents.

Claims

1. A mold structure for fast switching of fin production state, comprising an upper mold base (1) and a lower mold base (2), characterized in that: The upper die holder (1) is movably arranged above the lower die holder (2), and the bottom of the upper die holder (1) is provided with a female die (3), the top of the lower die holder (2) is provided with a male die (4), the inside of the male die (4) is provided with a plurality of groups of insertion grooves, and the inside of the insertion groove is movably provided with a thimble (5), and the upper end of the thimble (5) is provided with a punch (6). The top of the lower die holder (2) and the male die (4) are provided with a switching groove, and the switching groove is communicated with the insertion groove, the lower end of the thimble (5) extends into the inside of the switching groove, the inside of the switching groove is used for inserting a plug-in plate (7), the upper end surface of the plug-in plate (7) is matched with the thimble (5), and the plug-in plate (7) is one of a flat plate and a stepped plate.

2. The mold structure for rapidly switching fin production states according to claim 1, characterized by: One end of the plug-in plate (7) is provided with a fixing bolt (8), and the plug-in plate (7) is fixed with the lower die holder (2) through the fixing bolt (8).

3. The mold structure for rapidly switching fin production states according to claim 1, characterized by: The upper end of the thimble (5) is provided with a screw thread, and the lower end of the punch (6) is provided with a bolt pipe (9), the bolt pipe (9) is sleeved on the upper end of the thimble (5) and matched with the screw thread.

4. The mold structure for rapidly switching fin production states according to claim 1, characterized by: The middle ends of the two sides of the insertion groove are both provided with a spring groove (10), the middle ends of the two sides of the thimble (5) are both provided with a limiting piece (11), and the limiting piece (11) extends into the inside of the spring groove (10), and the upper end of the limiting piece (11) and the upper end of the spring groove (10) are connected with a spring (12).

5. The mold structure for rapidly switching fin production states according to claim 1, characterized by: When the plug-in plate (7) is a flat plate, the upper end surface of the plug-in plate (7) is a horizontal surface.

6. The mold structure for rapidly switching fin production states according to claim 1, characterized by: When the plug-in plate (7) is a stepped plate, the upper end surface of the plug-in plate (7) is provided with a stepped groove (13), and the stepped groove (13) is provided with a plurality of groups.

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