Absorbent cotton punching and heat sealing die

Abstract

The utility model belongs to the technical field of dies, and provides an absorbent cotton punching and heat sealing die which comprises a bottom plate, a lower die, a punch, a top plate and a heating pipe. Wherein the lower die is connected to the bottom plate and forms a first channel for a target base material to pass through; the punch and the lower die are arranged at an interval, and the interval between the punch and the lower die is a second channel for target absorbent wool to pass through; the top plate is connected to the punch and used for driving the punch to get close to or get away from the lower die in the direction perpendicular to the first channel. The lower die is further provided with a through hole communicating with the first channel and allowing the punch to pass through in a matched mode. The heating pipe is connected to the lower die and used for heating the lower die.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of molds, and particularly relates to a water-absorbing cotton punching and heat sealing mold. BACKGROUND

[0002] The production process efficiency and quality of anesthetic patches, which are widely used in the medical field, directly affect the market competitiveness and use effect of the products. In the traditional production process of anesthetic patches, two different devices are usually used to complete the key manufacturing steps: first, a punching device is used to punch the water-absorbing cotton from the water-absorbing cotton roll; then, another heat sealing device is used to heat seal the edges of the punched water-absorbing cotton to the substrate. This production process with multiple steps and devices not only increases the equipment investment and maintenance cost, but also leads to low overall production efficiency due to the coordination and transmission between different devices. Therefore, it is necessary to solve the above technical problems. SUMMARY

[0003] The purpose of the embodiment of the application is to provide a water-absorbing cotton punching and heat sealing mold to solve the technical problem of low production efficiency of anesthetic patches in the prior art.

[0004] To achieve the above purpose, the technical scheme adopted by the application is to provide a water-absorbing cotton punching and heat sealing mold, which comprises:

[0005] a bottom plate;

[0006] a lower mold connected to the bottom plate and forming a first channel for the target substrate to pass through;

[0007] a punch arranged in a spaced manner with the lower mold, and the space between the punch and the lower mold is a second channel for the target water-absorbing cotton to pass through;

[0008] a top plate connected to the punch and used to drive the punch to approach or move away from the lower mold in a direction perpendicular to the first channel, and the lower mold is further provided with a through hole communicated with the first channel and capable of allowing the punch to pass through;

[0009] a heating pipe connected to the lower mold and used to heat the lower mold.

[0010] Optionally, the lower mold forms a convex block part protruding from the surface of the top plate;

[0011] the first channel is arranged in the convex block part, and the bottom surface of the first channel is arranged in a spaced manner with the surface of the lower mold, the through hole is arranged in the convex block part, and the upper end opening of the through hole forms a blade edge, and the lower end opening of the through hole is arranged in the first channel.

[0012] Optionally, the convex block part is recessed from the wall surface of the first channel to form an avoiding cavity opposite to the through hole;

[0013] The projection profile of the avoiding cavity in the axial direction of the through hole is smaller than the profile range of the through hole.

[0014] Optionally, the water-absorbing cotton punching and heat sealing die further comprises a pressing cylinder coaxially movably sleeved on the punch, a first spring abutting against the pressing cylinder and the top plate at two ends respectively, and a second spring abutting against the pressing cylinder and the lower die at two ends respectively.

[0015] The elastic deformation directions of the first spring and the second spring are parallel to the moving direction of the punch.

[0016] Optionally, the water-absorbing cotton punching and heat sealing die further comprises a pull rod connected to the top plate and used to drive the top plate to move.

[0017] The pull rod is parallel to the moving direction of the punch, and the second spring is coaxially sleeved on the pull rod.

[0018] Optionally, at least two pull rods are connected to the top plate at intervals, and all the pull rods are symmetrically arranged about the axial direction of the through hole.

[0019] Optionally, the water-absorbing cotton punching and heat sealing die further comprises a moving seat and a connecting rod connected to the moving seat, and the moving seat is connected to an external driving mechanism through the connecting rod.

[0020] The ends of all the pull rods away from the top plate are connected to the moving seat.

[0021] Optionally, the water-absorbing cotton punching and heat sealing die further comprises a vertical plate connected between the lower die and the bottom plate, and the lower die is spaced apart from the bottom plate through the vertical plate.

[0022] The water-absorbing cotton punching and heat sealing die provided in the application has the following beneficial effects: compared with the prior art, in the water-absorbing cotton punching and heat sealing die provided in the application, the lower die forms a first channel for the target base material to pass through, and the space between the lower die and the punch is a second channel for the target water-absorbing cotton to pass through. Therefore, in the process of the top plate driving the punch to approach the lower die along a direction perpendicular to the first channel and passing through the through hole, the port of the lower die for forming the through hole can cut the target water-absorbing cotton and directly press the cut piece cut from the target water-absorbing cotton onto the base material passing through the first channel, so that the target base material and the water-absorbing cotton piece can be heat sealed and combined in the process of the lower die being heated by the heating pipe. Therefore, the water-absorbing cotton punching and heat sealing die provided in the embodiment can quickly complete the punching and heat sealing operations of the water-absorbing cotton, which is advantageous to significantly improve the production efficiency of the anesthetic patch and is much better than the prior art. BRIEF DESCRIPTION OF DRAWINGS

[0023] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the embodiments or prior art description will be briefly introduced. Obviously, the drawings in the following description only constitute some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor.

[0024] Figure 1 The overall structure schematic diagram of the water-absorbing cotton punching and heat sealing mold provided by the embodiments of the present application is shown in the figure.

[0025] Figure 2 For Figure 1 The local enlarged view of A in the figure.

[0026] In the figure, the reference signs are as follows: 100, bottom plate; 101, lower mold; 102, first channel; 103, punch; 104, second channel; 105, top plate; 106, through hole; 107, heating pipe; 108, protruding block part; 109, avoiding cavity; 110, pressing cylinder; 111, first spring; 112, second spring; 113, pull rod; 114, moving seat; 115, connecting rod; 116, vertical plate; 201, target base material; 202, target water-absorbing cotton. DETAILED DESCRIPTION

[0027] In order to make the technical problems, technical solutions and beneficial effects of the present application more clearly understood, the present application will be further described in detail below with reference to the drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and not to limit the present application.

[0028] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it can be directly on the other element or indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or indirectly connected to the other element.

[0029] It should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only used to facilitate the description of the present application and simplify the description, and therefore cannot be understood as indicating or implying that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.

[0030] In addition, the terms "first", "second", etc. are used only for descriptive purposes and are not to be construed as indicating or implying relative importance or an indicated number of technical features. Thus, features defined with "first", "second" can explicitly or implicitly include one or more of the features. In the description of the present application, the meaning of "a plurality of" is two or more, unless otherwise explicitly and specifically limited.

[0031] Please refer to Figures 1 to 2 A water-absorbing cotton punching and heat sealing die provided by an embodiment of the present application will be described. The water-absorbing cotton punching and heat sealing die includes a bottom plate 100, a lower die 101, a punch 103, a top plate 105, and a heating pipe 107. Among them:

[0032] The lower die 101 is connected to the bottom plate 100 and forms a first passage 102 for the target base material 201 to pass through; the punch 103 is arranged in a spaced manner with the lower die 101, and the space between the punch 103 and the lower die 101 is a second passage 104 for the target water-absorbing cotton 202 to pass through; the top plate 105 is connected to the punch 103 and is used to drive the punch 103 to approach or move away from the lower die 101 in a direction perpendicular to the first passage 102, and the lower die 101 is further provided with a through hole 106 which is communicated with the first passage 102 and can be adapted to pass through the punch 103; the heating pipe 107 is connected to the lower die 101 and is used to heat the lower die 101.

[0033] According to the above structure provided in the embodiment, in the water-absorbing cotton punching and heat sealing die provided by the embodiment, since the lower die 101 forms the first passage 102 for the target base material 201 to pass through and the space between the lower die 101 and the punch 103 is the second passage 104 for the target water-absorbing cotton 202 to pass through, in the process that the top plate 105 drives the punch 103 to approach the lower die 101 in a direction perpendicular to the first passage 102 and passes through the through hole 106, the port of the through hole 106 formed by the lower die 101 can form punching on the target water-absorbing cotton 202 and directly press the punched piece from the target water-absorbing cotton 202 to the base material passing through the first passage 102, so that the target base material 201 and the water-absorbing cotton piece can be heat sealed and combined in the process that the lower die 101 is heated by the heating pipe 107. Thus, the water-absorbing cotton punching and heat sealing die provided in the embodiment can quickly complete the punching and heat sealing operation of the water-absorbing cotton, which is advantageous to significantly improve the production efficiency of the anesthetic patch and is far superior to the prior art.

[0034] In another embodiment of the present application, please refer to Figures 1 to 2, the lower die 101 has a protruding bump portion 108 formed on the surface of the top plate 105; the first channel 102 is arranged in the bump portion 108 and the bottom surface of the first channel 102 is spaced apart from the surface of the lower die 101, and the through hole 106 is arranged in the bump portion 108 and the upper end of the through hole 106 is opened to form an edge, and the lower end of the through hole 106 is opened to the first channel 102. According to the above structure provided in the embodiment, the cutting of the target water-absorbing cotton 202 in the second channel 104 can be completed by cooperating with the edge when the punch 103 descends, and the water-absorbing cotton slice consistent with the shape of the punch 103 is formed, and the cut water-absorbing cotton slice is pressed to the target base material 201 in the first channel 102 as the punch 103 continues to descend, and the target base material 201 and the target water-absorbing cotton 202 after heat sealing combination can avoid continuing to contact the lower die 101 after passing through the first channel 102, which can effectively reduce the heating time of the target base material 201 and the target water-absorbing cotton 202, effectively prevent the slice complex of the base material and the target water-absorbing cotton 202 from being damaged by excessive heating, and help to form better combination quality of the target base material 201 and the target water-absorbing cotton 202 and further improve the production efficiency of the anesthetic patch.

[0035] In another embodiment of the present application, please refer to Figures 1 to 2 , the bump portion 108 is recessed from the wall surface of the first channel 102 to form an avoidance cavity 109 opposite to the through hole 106; the avoidance cavity 109 has an axial profile smaller than the profile range of the through hole 106. According to the above structure provided in the embodiment, the avoidance cavity 109 arranged in the first channel 102 can further reduce the heat sealing area of the water-absorbing cotton slice and the target base material 201, that is, the heat sealing surface is a ring-shaped heat sealing surface with the difference between the end surface area of the punch 103 and the mouth area of the avoidance cavity 109, and the area surrounded by the ring-shaped heat sealing surface can still maintain the function of the target water-absorbing cotton 202 itself and be integrated with the target base material 201, which is beneficial to further improve the production efficiency of the anesthetic patch.

[0036] In another embodiment of the present application, please refer to Figures 1 to 2, the water-absorbing cotton punching and heat sealing die further comprises a pressing cylinder 110 coaxially sleeved on the punch 103, a first spring 111 abutting against the pressing cylinder 110 and the top plate 105 at two ends respectively, and a second spring 112 abutting against the pressing cylinder 110 and the lower die 101 at two ends respectively; the elastic deformation directions of the first spring 111 and the second spring 112 are parallel to the moving direction of the punch 103. According to the above structure provided in the embodiment, in the process that the top plate 105 drives the punch 103 to approach the lower die 101, the first spring 111 arranged between the top plate 105 and the pressing cylinder 110 makes the pressing cylinder 110 descend to contact the upper surface of the protruding block part 108 before the punch 103, so that the pressing cylinder 110 cooperates with the upper surface of the protruding block part 108 to form clamping on the target water-absorbing cotton 202, and then the punch 103 punches and cuts the target water-absorbing cotton 202 to ensure the cutting quality; in the process that the top plate 105 drives the punch 103 to move away from the lower die 101, the second spring 112 arranged between the lower die 101 and the pressing cylinder 110 drives the pressing cylinder 110 to ascend and reset automatically, so as to further improve the punching and heat sealing efficiency of the target water-absorbing cotton 202 and the production efficiency of the anesthetic patch. It can be understood that the lengths of the first spring 111 and the second spring 112 can be set correspondingly according to the stroke of the punch 103.

[0037] In another embodiment of the present application, referring to Figures 1 to 2 , the water-absorbing cotton punching and heat sealing die further comprises a pulling rod 113 connected to the top plate 105 and used to drive the top plate 105 to move; the pulling rod 113 is parallel to the moving direction of the punch 103, and the second spring 112 is coaxially sleeved on the pulling rod 113. According to the above structure provided in the embodiment, the second spring 112 coaxially sleeved on the pulling rod 113 can keep good deformation stability, so as to further improve the production efficiency of the anesthetic patch.

[0038] In another embodiment of the present application, referring to Figures 1 to 2 , the top plate 105 is connected with at least two pulling rods 113 at intervals, and all the pulling rods 113 are symmetrically arranged about the axis of the through hole 106. According to the above structure provided in the embodiment, the at least two pulling rods 113 symmetrically about the through hole 106 can significantly improve the moving stability of the top plate, so that the punch 103 also has better moving stability and the production efficiency of the anesthetic patch is further improved.

[0039] In another embodiment of the present application, referring to Figures 1 to 2, the water-absorbing cotton punching and heat sealing die further comprises a moving base 114 and a connecting rod 115 connected to the moving base 114, the moving base 114 is connected to an external driving mechanism through the connecting rod 115, the external driving mechanism can be a cylinder, a crank connecting rod mechanism or other prior art; the ends of all the pull rods 113 away from the top plate 105 are connected to the moving base 114. According to the above structure provided in the embodiment, all the pull rods 113 connected to the moving base 114 can keep good synchronous moving effect, which is beneficial to further improve the production efficiency of the anesthetic patch.

[0040] In another embodiment of the present application, please refer to Figures 1 to 2 , the water-absorbing cotton punching and heat sealing die further comprises a vertical plate 116 connected between the lower die 101 and the bottom plate 100, the lower die 101 is spaced apart from the bottom plate 100 through the vertical plate 116. According to the above structure provided in the embodiment, the spaced apart lower die 101 and the bottom plate 100 can effectively avoid heat transfer, which is beneficial to significantly prolong the service life of the water-absorbing cotton punching and heat sealing die in the embodiment.

[0041] The above only describes the preferred embodiments of the present application and is not intended to limit the present application. Any modification, equivalent replacement and improvement made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A water-absorbing cotton die-cutting heat-sealing mold characterized by, It comprises: a base plate (100); a lower die (101) connected to the base plate (100) and forming a first channel (102) for the target base material (201) to pass through; a punch (103) arranged in a spaced manner with the lower die (101), and the space between the punch (103) and the lower die (101) is a second channel (104) for the target water-absorbing cotton (202) to pass through; a top plate (105) connected to the punch (103) and used to drive the punch (103) to move close to or away from the lower die (101) in a direction perpendicular to the first channel (102), and the lower die (101) is further provided with a through hole (106) communicating with the first channel (102) and capable of allowing the punch (103) to pass through; a heating pipe (107) connected to the lower die (101) and used to heat the lower die (101).

2. The water-absorbing cotton punching and heat sealing die according to claim 1, wherein: the lower die (101) is formed with a raised bump portion (108) on the surface thereof relative to the top plate (105); the first channel (102) is arranged in the bump portion (108), and the bottom surface of the first channel (102) is arranged in a spaced manner with the surface of the lower die (101), the through hole (106) is arranged in the bump portion (108), and the upper end opening of the through hole (106) forms an edge, and the lower end opening of the through hole (106) is in the first channel (102).

3. The water-absorbing cotton punching and heat sealing die according to claim 2, wherein: the bump portion (108) is recessed from the wall surface of the first channel (102) to form an avoiding cavity (109) directly opposite to the through hole (106); the projection profile of the avoiding cavity (109) in the axial direction of the through hole (106) is smaller than the profile range of the through hole (106).

4. The water-absorbing cotton punching and heat sealing die according to claim 1, wherein: the water-absorbing cotton punching and heat sealing die further comprises a pressing cylinder (110) coaxially movably sleeved on the punch (103), a first spring (111) having two ends abutting against the pressing cylinder (110) and the top plate (105) respectively, and a second spring (112) having two ends abutting against the pressing cylinder (110) and the lower die (101) respectively; the elastic deformation directions of the first spring (111) and the second spring (112) are both parallel to the moving direction of the punch (103).

5. The water-absorbing cotton punching and heat sealing die according to claim 4, wherein: the water-absorbing cotton punching and heat sealing die further comprises a pull rod (113) connected to the top plate (105) and used to drive the top plate (105) to move; the pull rod (113) is parallel to the moving direction of the punch (103), and the second spring (112) is coaxially sleeved on the pull rod (113).

6. The water-absorbing cotton punching and heat sealing die according to claim 5, wherein: At least two of the pull rods (113) are spaced apart and connected to the top plate (105), and all of the pull rods (113) are symmetrically arranged about the axis of the through hole (106).

7. The absorbent cotton punching and heat-sealing die according to claim 6, characterized in that: The absorbent cotton punching and heat-sealing die further comprises a movable seat (114) and a connecting rod (115) connected to the movable seat (114); the movable seat (114) is connected to an external driving mechanism via the connecting rod (115); The ends of all the pull rods (113) away from the top plate (105) are connected to the movable seat (114).

8. The absorbent cotton punching and heat-sealing die according to claim 1, characterized in that: The absorbent cotton punching and heat-sealing mold further comprises a vertical plate (116) connected between the lower mold (101) and the bottom plate (100), and the lower mold (101) is spaced apart from the bottom plate (100) via the vertical plate (116).

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