Refrigerator door seal magnetic stripe punching equipment

Abstract

The utility model discloses a refrigerator door seal magnetic stripe punching device which comprises a device base, and a punching die holder and a feeding assembly used for punching and feeding magnetic stripes are arranged at the upper end of the device base side by side. The punching die holder is provided with a magnetic strip guide groove for a magnetic strip to slide in a punching manner, a pressing block is mounted on the punching die holder, and a punching through hole is formed in the pressing block; a stamping support is fixedly arranged at the upper end of the equipment base, a stamping cylinder is fixedly mounted on the stamping support, the output end of the stamping cylinder is fixedly connected with a mounting seat, and a stamping upper die is detachably mounted on the mounting seat. A driving support is fixedly installed on the equipment base, a driving assembly is installed on the driving support, and the driving assembly is connected with the feeding assembly. The punching head penetrates through the punching through hole to punch the magnetic strip, and the magnetic strip is pressed by the pressing block, so that the magnetic strip is kept stable during punching, and the punching precision is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of refrigerators, in particular to a refrigerator door seal magnetic strip punching device. Background Art

[0002] Due to the large temperature difference between the inside and outside of the existing (refrigerated / frozen) box products, the air inside the box is squeezed outward at the moment of closing the door, and an instantaneous pressure difference is formed inside and outside the box, thereby generating negative pressure, which causes the door to be unable to be opened immediately after closing, bringing a poor experience to consumers. With the development of technology, the internal temperature of new (refrigerated / frozen) boxes is getting lower and lower, and the instantaneous difficulty in opening the door caused by the negative pressure problem is becoming more and more serious, but there has been no good solution. The existing solution is to add a one-way valve to the door or box body to allow air inside and outside the box to flow through the one-way valve, or to change the door handle to a power handle to assist in opening the door; however, the existing solution is costly and requires a long delay to open the door instantly, so it does not fundamentally solve the problem.

[0003] This solution weakens the magnetic force at the door handle. When the door handle is pulled, a gap will appear between the door seal and the cabinet to form a channel for internal and external circulation due to the weak magnetic force of the door seal at the door handle, allowing the internal and external air pressure to reach a balanced state immediately, thereby solving the problem of negative pressure in the refrigerator.

[0004] However, in order to weaken the magnetic force of the magnetic strip, punching equipment is usually used to punch the magnetic strip, and the magnetic force is weakened by reducing the area of ​​the magnetic strip. However, the existing punching equipment cannot automatically feed the magnetic strip, and cannot fix and clamp the magnetic strip during punching, resulting in low punching accuracy. Utility Model Content

[0005] The utility model aims to provide a refrigerator door seal magnetic strip punching device to solve the technical problems of failure to automatically load materials and poor clamping stability during magnetic strip punching.

[0006] The purpose of the utility model can be achieved through the following technical solutions:

[0007] A refrigerator door seal magnetic strip punching device, comprising a device base, wherein a punching die seat and a feeding assembly for punching and feeding magnetic strips are arranged side by side on the upper end of the device base; a magnetic strip guide groove for the magnetic strip to be punched and slide is arranged on the punching die seat, a pressing block is installed on the punching die seat, and a punching through hole is arranged on the pressing block;

[0008] A stamping bracket is fixedly arranged on the upper end of the equipment base, a stamping cylinder is fixedly installed on the stamping bracket, a mounting seat is fixedly connected to the output end of the stamping cylinder, and a stamping upper die is detachably installed on the mounting seat;

[0009] A driving bracket is fixedly mounted on the equipment base, a driving component is mounted on the driving bracket, and the driving component is connected to the feeding component.

[0010] As a further solution of the utility model: a guide groove is provided at the upper end of the punching die seat, a pressing through groove is provided at the lower end of the guide groove, a guide seat is slidably provided at the guide groove, the guide seat is connected to the pressing block, a plurality of lower springs are fixedly installed in the guide groove, and the lower springs are fixedly connected to the guide seat.

[0011] As a further solution of the utility model: the stamping upper die includes an upper die base, and a punching head is fixedly arranged at the lower end of the upper die base.

[0012] As a further solution of the utility model: a fixed plate is fixedly provided on the outer periphery of the upper die seat, a sliding pressure plate is slidably provided on the outer periphery of the punching head, and a plurality of upper springs are passed between the sliding pressure plate and the fixed plate.

[0013] As a further solution of the utility model: the feeding assembly includes two sets of upper slide seats slidably arranged on the driving frame, a feeding shaft is rotatably mounted on the upper slide seat, and a feeding guide wheel is fixedly mounted on the feeding shaft.

[0014] As a further solution of the utility model: the feeding assembly also includes a motor fixedly mounted on the equipment base, the equipment base is provided with a driving groove, a bidirectional screw is rotatably mounted in the driving groove, one end of the bidirectional screw is fixedly connected to the motor, two groups of screw slides are threadedly connected to the bidirectional screw, and the two groups of screw slides are respectively rotatably connected to the two groups of feeding shafts.

[0015] As a further solution of the utility model: the driving assembly includes a second motor rotatably mounted on a driving frame, a driving wheel is fixedly mounted on an output shaft of the second motor, a driven wheel is fixedly mounted on the feeding shaft, and the driven wheel and the driving wheel are connected via a transmission belt.

[0016] As a further solution of the utility model: the drive assembly also includes a tensioning component for adjusting the tension of the transmission belt.

[0017] As a further solution of the utility model: the tensioning component includes a tensioning seat fixedly mounted on the driving frame, a tensioning slider is slidably arranged on the tensioning seat, a tensioning shaft is rotatably mounted on the tensioning slider, a tensioning pulley is fixedly mounted on the tensioning shaft, a tensioning spring is fixedly connected to the tensioning slider, and the tensioning spring is fixedly connected to the tensioning seat.

[0018] Beneficial effects of the utility model:

[0019] (1) The sliding pressure plate is automatically reset by the upper spring. When the upper die seat and the punching head move downward, the sliding pressure plate is driven to move downward. The sliding pressure plate contacts the guide seat, and the guide seat and the pressing block are driven to slide downward by the action of the upper spring and the lower spring. Then the punching head passes through the punching hole to punch the magnetic strip. At the same time, the pressing block presses the magnetic strip to ensure that the magnetic strip remains stable during punching and improve the punching accuracy.

[0020] (2) The motor drives the bidirectional screw to rotate. The threads at both ends of the bidirectional screw are in opposite directions. Under the screw transmission principle, the two sets of screw slides are driven to slide synchronously toward or away from each other, thereby driving the two sets of feeding guide wheels to adjust their positions, thereby ensuring automatic feeding and conveying of magnetic strips of different sizes.

[0021] (3) The tension of the transmission belt is adjusted by the tensioning component, thereby ensuring that the feeding guide wheel is driven accurately and stably when the position of the driven wheel is adjusted. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The utility model is further described below in conjunction with the accompanying drawings.

[0023] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0024] Figure 2 It is a structural schematic diagram of the feeding assembly of the utility model;

[0025] Figure 3 It is a structural schematic diagram of the drive assembly of the utility model.

[0026] In the figure: 1. Equipment base; 101. Driving slot; 2. Punching die seat; 21. Magnetic strip guide slot; 22. Guide slot; 23. Pressing slot; 24. Lower spring; 25. Guide seat; 26. Pressing block; 27. Punching hole; 3. Punching bracket; 4. Punching cylinder; 5. Mounting seat; 6. Punching upper die; 61. Upper die seat; 62. Punching head; 63. Fixed plate; 64. Upper spring; 65. Sliding plate; 7. Feeding assembly; 71. Motor 1; 72. Bidirectional screw; 73. Screw slide; 74. Feeding shaft; 75. Feeding guide wheel; 76. Upper slide; 8. Drive frame; 81. Drive bracket; 82. Upper slide; 83. Drive seat plate; 9. Drive assembly; 91. Motor 2; 92. Drive wheel; 93. Drive belt; 94. Tensioning component; 941. Tensioning seat; 942. Tensioning slider; 943. Tensioning shaft; 944. Tensioning pulley; 945. Tensioning spring; 95. Driven wheel. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0028] See also Figure 1-Figure 3 As shown, the utility model is a refrigerator door seal magnetic strip punching device, comprising a device base 1, a punching die seat 2 and a feeding assembly 7 for punching and feeding the magnetic strip are arranged side by side on the upper end of the device base 1; a magnetic strip guide groove 21 for the magnetic strip to be punched and slide is arranged on the punching die seat 2, a pressing block 26 is installed on the punching die seat 2, and a punching through hole 27 is arranged on the pressing block 26;

[0029] A stamping bracket 3 is fixedly arranged on the upper end of the equipment base 1, a stamping cylinder 4 is fixedly installed on the stamping bracket 3, a mounting seat 5 is fixedly connected to the output end of the stamping cylinder 4, and a stamping upper die 6 is detachably installed on the mounting seat 5;

[0030] A driving bracket 81 is fixedly mounted on the equipment base 1 , a driving component 9 is mounted on the driving bracket 81 , and the driving component 9 is connected to the feeding component 7 .

[0031] Specifically, the driving assembly 9 drives the feeding assembly 7 to realize automatic feeding and conveying of the magnetic strip, thereby feeding the magnetic strip into the punching die seat 2 to realize the punching process of the magnetic strip.

[0032] A guide groove 22 is provided at the upper end of the punching die seat 2, and a pressing through groove 23 is provided at the lower end of the guide groove 22. A guide seat 25 is slidably provided at the guide groove 22, and the guide seat 25 is connected to a pressing block 26. A plurality of lower springs 24 are fixedly installed in the guide groove 22, and the lower springs 24 are fixedly connected to the guide seat 25.

[0033] When the magnetic strip is fed into the magnetic strip guide groove 21 under the action of the feeding assembly 7, the guide seat 25 moves downward under the action of the stamping upper die 6, driving the pressing block 26 to move downward to press the magnetic strip in the magnetic strip guide groove 21, and then the slot hole of the magnetic strip is punched under the action of the stamping upper die 6.

[0034] Specifically, the lower spring 24 can drive the guide seat 25 and the pressing block 26 to return upward.

[0035] The stamping upper die 6 comprises an upper die seat 61 , and a punching head 62 is fixedly disposed at the lower end of the upper die seat 61 .

[0036] The upper die seat 61 is used to press the guide seat 25, and the punching head 62 is used to punch the slots in the magnetic strip.

[0037] A fixed plate 63 is fixedly provided on the outer periphery of the upper die seat 61 , a sliding pressure plate 65 is slidably provided on the outer periphery of the punching head 62 , and a plurality of upper springs 64 are provided between the sliding pressure plate 65 and the fixed plate 63 .

[0038] The sliding pressure plate 65 is automatically reset by the upper spring 64. When the upper mold base 61 and the punching head 62 move downward, the sliding pressure plate 65 is driven to move downward. The sliding pressure plate 65 contacts the guide seat 25, and the guide seat 25 and the pressing block 26 are driven to slide downward by the action of the upper spring 64 and the lower spring 24. Then the punching head 62 passes through the punching hole 27 to punch the magnetic strip, and the pressing block 26 presses the magnetic strip to ensure that the magnetic strip remains stable during punching and improve the punching accuracy.

[0039] The feeding assembly 7 includes two sets of upper slide seats 76 slidably arranged on the driving frame 8 , a feeding shaft 74 is rotatably mounted on the upper slide seat 76 , and a feeding guide wheel 75 is fixedly mounted on the feeding shaft 74 .

[0040] Specifically, the driving frame 8 includes a driving bracket 81 , on which an upper slide groove 82 matching with the upper slide seat 76 is disposed, and on which a driving seat plate 83 is fixedly disposed, wherein the driving assembly 9 is fixedly mounted on the driving seat plate 83 .

[0041] The feeding assembly 7 also includes a motor 71 fixedly mounted on the equipment base 1, and a driving groove 101 is provided on the equipment base 1. A bidirectional screw rod 72 is rotatably mounted in the driving groove 101, and one end of the bidirectional screw rod 72 is fixedly connected to the motor 71. Two groups of screw rod slides 73 are threadedly connected to the bidirectional screw rod 72, and the two groups of screw rod slides 73 are rotatably connected to the two groups of feeding shafts 74 respectively.

[0042] Specifically, the bidirectional screw rod 72 is driven to rotate by the motor 71, and the threads at both ends of the bidirectional screw rod 72 are in opposite directions. Under the screw rod transmission principle, the two groups of screw rod slides 73 are driven to slide toward or away from each other synchronously, thereby driving the two groups of feeding guide wheels 75 to adjust their positions, thereby ensuring automatic feeding and conveying of magnetic strips of different sizes.

[0043] The driving assembly 9 includes a second motor 91 rotatably mounted on the driving frame 8 , a driving wheel 92 is fixedly mounted on the output shaft of the second motor 91 , a driven wheel 95 is fixedly mounted on the feeding shaft 74 , and the driven wheel 95 is connected to the driving wheel 92 via a transmission belt 93 .

[0044] The driving assembly 9 also includes a tensioning component 94 for adjusting the tension of the transmission belt 93. The tension of the transmission belt 93 is adjusted by the tensioning component 94, thereby ensuring that the loading guide wheel 75 is accurately and stably driven when the position of the driven wheel 95 is adjusted.

[0045] The tensioning component 94 includes a tensioning seat 941 fixedly mounted on the driving frame 8, a tensioning slider 942 is slidably arranged on the tensioning seat 941, a tensioning shaft 943 is rotatably mounted on the tensioning slider 942, a tensioning pulley 944 is fixedly mounted on the tensioning shaft 943, a tensioning slider 942 is fixedly connected to a tensioning spring 945, and the tensioning spring 945 is fixedly connected to the tensioning seat 941.

[0046] The working principle of the utility model is as follows: first, according to the different specifications of the magnetic strips, the distance between the two groups of feeding guide wheels 75 is adjusted, and the two-way screw rod 72 is driven to rotate by the motor 1 71. The two ends of the two-way screw rod 72 have opposite thread directions. Under the screw rod transmission principle, the two groups of screw rod slides 73 are driven to slide synchronously toward or away from each other, and then the two groups of feeding guide wheels 75 are driven to adjust their positions to ensure automatic feeding and conveying of magnetic strips of different sizes. When the position adjustment of the feeding guide wheel 75 is completed, the tensioning component 94 is used to ensure that the transmission belt 93 remains in a tensioned state, and then the motor 2 91 drives the driving wheel 92 to rotate, and the driving wheel 92 drives the driven wheel 9 through the transmission belt 93 5 and the feeding shaft 74 rotate, and two sets of feeding guide wheels 75 are used to realize the feeding and conveying of the magnetic strip. When the magnetic strip is fed into the magnetic strip guide groove 21, the punching cylinder 4 drives the punching upper die 6 to move downward, and the punching head 62 is used to punch the slot of the magnetic strip, so that the wire gap on the magnetic strip is formed. By punching out part of the magnetic strip at the door handle, the magnetic force at the door handle can be weakened. The local weakening does not affect the sealing of the box body through experiments. When the door is opened, it is easier to form a channel at the door handle to allow internal and external air to circulate, thereby solving the problem of negative pressure. At the same time, the door can still have a good sealing effect when it is closed, ensuring the sealing of the door seal while reducing the negative pressure problem of the refrigerator-freezer.

[0047] As mentioned above, by punching out part of the magnetic strip at the door handle, the magnetic force at the door handle can be weakened, making it easier to form a channel at the door handle to allow air to circulate inside and outside when opening the door, solving the problem of difficulty in opening the door caused by instantaneous negative pressure. At the same time, the door can still have a good sealing effect when closed, ensuring the sealing of the door seal while reducing the negative pressure problem of the refrigerator.

[0048] The above is a detailed description of an embodiment of the utility model, but the content is only a preferred embodiment of the utility model and cannot be considered to limit the scope of implementation of the utility model. All equivalent changes and improvements made within the scope of application of the utility model should still fall within the scope of the patent coverage of the utility model.

Claims

1. A refrigerator door seal magnetic strip punching device, characterized in that: The device comprises an equipment base (1), wherein a punching die seat (2) and a feeding assembly (7) for punching and feeding magnetic strips are arranged side by side at the upper end of the equipment base (1); a magnetic strip guide groove (21) for the magnetic strips to slide during punching is arranged on the punching die seat (2); a pressing block (26) is installed on the punching die seat (2), and a punching through hole (27) is arranged on the pressing block (26); A stamping bracket (3) is fixedly provided on the upper end of the equipment base (1), a stamping cylinder (4) is fixedly mounted on the stamping bracket (3), a mounting seat (5) is fixedly connected to the output end of the stamping cylinder (4), and a stamping upper die (6) is detachably mounted on the mounting seat (5); A driving bracket (81) is fixedly mounted on the equipment base (1), a driving component (9) is mounted on the driving bracket (81), and the driving component (9) is connected to the feeding component (7).

2. A refrigerator door seal magnetic strip punching device according to claim 1, characterized in that: A guide groove (22) is arranged at the upper end of the punching die seat (2), a pressing through groove (23) is arranged at the lower end of the guide groove (22), a guide seat (25) is slidably arranged at the guide groove (22), the guide seat (25) is connected to a pressing block (26), a plurality of lower springs (24) are fixedly installed in the guide groove (22), and the lower springs (24) are fixedly connected to the guide seat (25).

3. A refrigerator door seal magnetic strip punching device according to claim 2, characterized in that: The stamping upper die (6) comprises an upper die seat (61), and a punching head (62) is fixedly arranged at the lower end of the upper die seat (61).

4. A refrigerator door seal magnetic strip punching device according to claim 3, characterized in that: A fixed plate (63) is fixedly arranged on the outer periphery of the upper die seat (61), and a sliding pressure plate (65) is slidably arranged on the outer periphery of the punching head (62). A plurality of upper springs (64) are arranged between the sliding pressure plate (65) and the fixed plate (63).

5. A refrigerator door seal magnetic strip punching device according to any one of claims 1 to 4, characterized in that: The feeding assembly (7) comprises two sets of upper slide seats (76) slidably arranged on the driving frame (8), a feeding shaft (74) is rotatably mounted on the upper slide seat (76), and a feeding guide wheel (75) is fixedly mounted on the feeding shaft (74).

6. A refrigerator door seal magnetic strip punching device according to claim 5, characterized in that: The feeding assembly (7) also includes a motor 1 (71) fixedly mounted on the equipment base (1), a driving groove (101) being provided on the equipment base (1), a bidirectional screw rod (72) being rotatably mounted in the driving groove (101), one end of the bidirectional screw rod (72) being fixedly connected to the motor 1 (71), two groups of screw rod slides (73) being threadedly connected to the bidirectional screw rod (72), and the two groups of screw rod slides (73) are rotatably connected to the two groups of feeding shafts (74) respectively.

7. A refrigerator door seal magnetic strip punching device according to claim 6, characterized in that: The driving assembly (9) comprises a second motor (91) rotatably mounted on a driving frame (8); a driving wheel (92) is fixedly mounted on an output shaft of the second motor (91); a driven wheel (95) is fixedly mounted on the feeding shaft (74); and the driven wheel (95) is connected to the driving wheel (92) via a transmission belt (93).

8. The refrigerator door seal magnetic strip punching device according to claim 7, characterized in that: The driving assembly (9) also includes a tensioning component (94) for adjusting the tension of the driving belt (93).

9. The refrigerator door seal magnetic strip punching device according to claim 8, characterized in that: The tensioning component (94) comprises a tensioning seat (941) fixedly mounted on the driving frame (8); a tensioning slider (942) is slidably arranged on the tensioning seat (941); a tensioning shaft (943) is rotatably mounted on the tensioning slider (942); a tensioning pulley (944) is fixedly mounted on the tensioning shaft (943); a tensioning slider (942) is fixedly connected to a tensioning spring (945); and the tensioning spring (945) is fixedly connected to the tensioning seat (941).

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