Die mounting mechanism of bubble cap machine

Abstract

The utility model relates to the field of bubble cap machines, and discloses a die mounting mechanism of a bubble cap machine, which comprises a machine body, an upper die and a lower die are detachably mounted on the machine body, the upper die and the lower die are matched to form a sealed forming cavity when being contacted, and a forming channel for materials to pass through is arranged between the upper die and the lower die when being far away from each other. The machine body comprises a middle fixing plate; limiting pieces moving up and down are arranged in the fixing plate in a penetrating mode and at least comprise lower limiting pieces, mold clamping grooves are formed in the positions, corresponding to the lower limiting pieces, of the bottom of the lower mold, limiting groove walls are arranged on the left side and the right side of each mold clamping groove, the limiting pieces are clamped in the mold clamping grooves, and the limiting groove walls on the left side and the right side limit the lower limiting pieces in the left-right direction. According to the utility model, through the lifting of the limiting piece, under the guiding state, the installation position of the mold is guided, the installation position of the upper mold or the lower mold is rapidly determined, and after the position is well determined, the limiting piece locks the mold, so that the mold and the installation surface are attached and rapidly locked.

Description

Technical Field

[0001] The utility model relates to the field of blister machines, in particular to a mold installation mechanism of a blister machine. Background Art

[0002] A blister packaging machine is a packaging device widely used in the fields of pharmaceuticals, food, mechanical parts, etc. The blister forming mechanism of the blister packaging machine is a key part to realize blister packaging. The traditional blister forming mechanism usually includes a mold and a heating system, and the blister is made by heating and forming the mold. According to the way of actively outputting positive pressure or negative pressure into the mold, it is divided into blow molding or vacuum forming. In the existing blister machines, key components such as the forming device, heat sealing device, indentation device, and punching device all rely on the mold to complete their work. However, due to factors such as blister forming specifications and the number of single processing, the mold needs to be replaced according to the actual situation. There are generally two major pain points in the existing mold installation methods:

[0003] 1. Complicated disassembly and low efficiency: It is necessary to loosen the installation bolts to disassemble the mold. Especially for the upper mold, forming elements such as the heat sealing plate need to be removed at the same time, and then separated, replaced, and reinstalled. The operation steps are long and the time cost is high.

[0004] 2. Prone to misoperation and affecting stability: Problems such as bolt loss or incorrect installation are likely to occur during the disassembly process, resulting in insecure mold installation and affecting the working stability of the blister machine.

[0005] In view of the defects of the existing technology, there is an urgent need for a new mold installation mechanism that can simplify the mold installation process, improve the installation efficiency, and ensure the installation accuracy and stability of the mold at the same time. Summary of the Invention

[0006] The utility model aims at the defects in the existing technology and provides a mold installation mechanism of a blister machine.

[0007] To solve the above technical problems, the utility model is solved by the following technical solutions:

[0008] A mold installation mechanism for a blister machine, comprising a machine body. An upper mold and a lower mold are detachably installed on the machine body. At least one of the upper mold and the lower mold is connected to a mold pressing power source. The mold pressing power source drives the upper mold and the lower mold to move towards or away from each other. When the upper mold and the lower mold are in contact, they cooperate to form a sealed molding cavity. When the upper mold and the lower mold are separated, there is a molding channel for the material to pass through between them. The machine body includes a middle fixing plate, and a lower installation surface for installing the lower mold is provided on the fixing plate; a limiting member that moves up and down is inserted through the fixing plate. The limiting member at least includes a lower limiting member. A mold slot is provided at the bottom of the lower mold corresponding to the lower limiting member. Limiting groove walls are provided on both the left and right sides of the mold slot. The limiting member is engaged in the mold slot, and the limiting groove walls on both sides form a limit for the lower limiting member in the left and right directions.

[0009] Preferably, an upper cover plate is provided above the machine body. The limiting member further includes an upper limiting member. The upper cover plate is provided with an upper limiting member that moves up and down. A mold slot is also provided at the top of the upper mold corresponding to the upper limiting member. The upper surface of the upper mold is in contact connection with an upper installation surface; the bottom surface of the upper cover plate is the upper installation surface, or one or more molding elements are provided between the upper cover plate and the upper mold, and the bottom surface of the lowermost molding element is the upper installation surface. The upper limiting member passes through the molding element.

[0010] Preferably, the mold slot extends through the mold along the front-rear direction.

[0011] Preferably, the mold slot includes an outer guide slot and an inner limiting slot. The width of the outer guide slot is smaller than that of the inner limiting slot. The limiting member has a protruding end. The mold slides forward and backward through the cooperation of the end and the inner limiting slot.

[0012] Preferably, the height of the inner limiting slot is higher than the thickness of the end. The cross-sectional shape of the widest part of the end matches the cross-section of the inner limiting slot. The sufficient thickness allows the mold to displace in the front-rear direction without being stuck by the end when the mold is translated.

[0013] Preferably, the limiting member at least has a first stroke and a second stroke. The displacement of the first stroke is to extend towards the molding channel direction. The displacement direction of the second stroke is the same as or opposite to the displacement direction of the first stroke. After the second stroke displacement, the limiting member fits against the bottom of the inner limiting slot or the wall between the outer guide slot of the inner limiting slot.

[0014] Preferably, the limiting member is connected to a lifting power source. The limiting member is located at the output end of the lifting power source, and the lifting power source drives the limiting member to move up and down.

[0015] Preferably, the limiting member is a limiting bolt. The limiting bolt includes a screw rod that can move up and down. The shape of the output end of the screw rod matches the limiting groove wall of the mold.

[0016] Preferably, at least one of the upper mounting surface and the lower mounting surface is provided with a protruding limiting block, which blocks the forward continuous displacement of the lower die and the upper die during installation.

[0017] Due to the adoption of the above technical solutions, the utility model has remarkable technical effects: through the lifting of the limiting member, different functions of its first stroke guiding state and second stroke locking state are realized. In the guiding state, the position of the die installation is guided, and the installation position of the upper die or the lower die is quickly determined. After the position is determined, the limiting member locks the die, so that the die fits with the mounting surface and is quickly locked.

[0018] It solves the drawbacks of the traditional die installation method, and effectively through the cooperation of the die slot of the die and the limiting member, the limiting member realizes the position accuracy and stability of the die installation during the installation process. Description of the Drawings

[0019] Figure 1 is the structural schematic diagram of the utility model;

[0020] Figure 2 is the structural schematic diagram of the lower die;

[0021] Figure 3 is Figure 2 the enlarged view of part B in

[0022] Figure 4 is the structural schematic diagram of the lower die from another angle;

[0023] Figure 5 is the front view of the lower die;

[0024] Figure 6 is Figure 5 the sectional view of A-A;

[0025] Figure 7 is the front view of the upper die;

[0026] Figure 8 is Figure 7 the sectional view of D-D.

[0027] The names of the parts referred to by the numerical labels in the above drawings are as follows: among them, 1, the machine body; 2, the upper die; 3, the lower die; 4, the fixing plate; 5, the die slot; 51, the limiting groove wall; 52, the outer guide groove; 53, the inner limiting groove; 61, the end; 62, the lifting power source; 7, the upper cover plate; 71, the forming element; 8, the upper limiting member. Detailed Implementation Modes

[0028] The following further describes the utility model in detail with reference to the drawings and embodiments.

[0029] Embodiment 1

[0030] When the blister machine is working, as Figure 1 shown, along the conveying direction of the material, there are multiple devices for forming blisters, generally including a forming device, a heat-sealing device, an indentation device, and a punching device. There is a feeding and conveying device for adding internal materials between the forming device and the heat-sealing device. The forming device forms the bottom plastic shell. After the feeding and conveying device adds materials, the heat-sealing device heat-seals and forms the upper material roll with the plastic. The main function of the indentation device is to imprint the production batch number and the easy-tearing line. The punching device cuts the continuous plastic shell. The bodies 1 of these devices all need to have an upper mold 2 and a lower mold 3, and the installation method is as described below.

[0031] A mold installation mechanism for a blister machine, as Figures 3 - 6 shown, includes a body 1. The upper mold 2 and the lower mold 3 are detachably installed on the body 1. At least one of the upper mold 2 and the lower mold 3 is connected to a mold pressing power source. The mold pressing power source drives the upper mold 2 and the lower mold 3 to move towards or away from each other. When the upper mold 2 and the lower mold 3 are in contact, they cooperate to form a sealed forming cavity. When the upper mold 2 and the lower mold 3 are far apart, there is a forming channel for the material to pass between them. The body 1 includes a middle fixing plate 4. The fixing plate 4 is provided with a lower installation surface for installing the lower mold 3. A limiting member for lifting movement is inserted through the fixing plate 4. The limiting member at least includes a lower limiting member 41. A mold slot 5 is provided at the bottom of the lower mold 3 corresponding to the lower limiting member 41. Limiting groove walls 51 are provided on both the left and right sides of the mold slot 5. The limiting member is engaged in the mold slot 5, and the limiting groove walls 51 on both sides form a limit in the left and right directions for the lower limiting member 41.

[0032] An upper cover plate 7 is provided above the body 1, as Figures 7 - 8 shown. The limiting member further includes an upper limiting member 8. The upper cover plate 7 is provided with an upper limiting member 8 for lifting movement. A mold slot 5 is also provided at the top of the upper mold 2 corresponding to the upper limiting member 8. The upper surface of the upper mold 2 is in contact connection with an upper installation surface. The bottom surface of the upper cover plate 7 is the upper installation surface, or one or several forming elements 71 are provided between the upper cover plate 7 and the upper mold 2. The bottom surface of the lowermost forming element 71 is the upper installation surface. The upper limiting member 8 passes through the forming element 71. Taking the forming element 71 as an example, for the heat-sealing device, the forming element above the upper mold 2 is a heat-sealing pressure-increasing plate, a heat-sealing heating plate, and a heat-sealing heat-insulating plate. The actual forming element 71 is adjusted according to the actual situation. This kind of adjustment is a well-known technology for those skilled in the art and will not be elaborated here again.

[0033] As Figure 2 shown, the mold slot 5 extends through the mold along the front-rear direction.

[0034] The mold clamping groove 5 includes an outer guide groove 52 and an inner limiting groove 53. The width of the outer guide groove 52 is smaller than that of the inner limiting groove 53. The limiting member has a protruding end 61. The mold slides forward and backward through the cooperation of the end 61 and the inner limiting groove 53. The mold clamping groove 5 shown in the figure is a straight-edge T-shaped groove, and actually its cross-section can also be arc-shaped or other shapes.

[0035] The height of the inner limiting groove 53 is higher than the thickness of the end 61. The cross-sectional shape of the widest part of the end 61 matches the cross-section of the inner limiting groove 53.

[0036] The limiting member has at least a first stroke and a second stroke. The displacement of the first stroke is to extend towards the forming channel direction. The displacement direction of the second stroke is the same as or opposite to that of the first stroke. After the second stroke displacement, the limiting member fits with the bottom of the inner limiting groove 53 or the groove wall between the outer guide groove 52 of the inner limiting groove 53.

[0037] At least one of the upper mounting surface and the lower mounting surface is provided with a protruding limiting block (not shown in the figure), and the limiting block blocks the further forward displacement of the lower mold 3 and the upper mold 2 during installation.

[0038] Working principle: For the installation of the upper mold and the lower mold, generally a semi-automatic method is used to control the limiting member, which has the effect of facilitating the replacement of the mold. One of the methods is that the limiting member is connected to a lifting power source 62. The limiting member is located at the output end of the lifting power source 62, and the lifting power source 62 drives the limiting member to move up and down. Generally, buttons are set on the equipment frame or the main control to control the lifting power source. The lifting power source can be controlled in ways such as cylinders, motors, motor-linked lead screw nuts, etc. that are easily thought of by those skilled in the art.

[0039] As another implementation method, the limiting member is a limiting bolt. The limiting bolt includes a screw rod, and the screw rod can move up and down. The shape of the output end of the screw rod matches the limiting groove wall 51 of the mold. There are the following several ways of bolt limiting: 1. Mechanical bolt stroke limiting: mainly realizes the limitation of the bolt stroke through mechanical parts (such as nuts, washers, etc.). Its characteristics are simple structure and high reliability, but the adjustment range is limited. 2. Hydraulic bolt stroke limiting: realizes the limitation of the bolt stroke through a hydraulic system. Its characteristics are large adjustment range and high precision, but the structure is relatively complex and the maintenance cost is high. 3. Electronic bolt stroke limiting: realizes the limitation of the bolt stroke through an electronic sensor and a control system. Its characteristics are high automation degree and high precision, but the structure is complex and the cost is high.

[0040] Under normal circumstances, the limiting member can be telescopic. When it retracts, it does not protrude from the upper mounting surface or the lower mounting surface. After the limiting member undergoes a displacement in the first stroke, the limiting member extends, and then the inner limiting groove 53 of the corresponding upper die 2 or lower die 3 is aligned with the end 62 of the limiting member and inserted horizontally, so that the limiting member passes through the outer guiding groove 52 and inserts into the inner limiting groove 53. Then, under the guidance of the limiting member, the upper die 2 or the lower die 3 is inserted inward until its front side touches the limiting block, and then the front and rear positions of the die are limited. At this time, operate the limiting member to undergo a displacement in the second stroke. The end of the end of the limiting member in the second stroke displacement touches the inner groove wall of the inner limiting groove 53 or the other end surface of the end touches the outer groove wall of the inner limiting groove 53, playing the role of locking the die by the limiting member, completing the installation, and at the same time the limiting member restricts the movement of the die in the front, rear, left, and right directions.

[0041] When disassembling the die, control the limiting member to return to the guiding state after the displacement in the first stroke, and at this time the die can be withdrawn.

[0042] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "center", "length", "width", "thickness", "upper", "lower", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present invention. In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present invention, the meaning of "a plurality" is two or more, unless otherwise specifically defined.

[0043] In summary, the above are only the preferred embodiments of the present invention, and all equivalent changes and modifications made according to the scope of the patent application of the present invention shall fall within the scope covered by the patent of the present invention.

Claims

1. A mold installation mechanism for a blister machine, comprising a machine body (1), on which an upper mold (2) and a lower mold (3) are detachably installed. At least one of the upper mold (2) and the lower mold (3) is connected to a mold pressing power source, and the mold pressing power source drives the upper mold (2) and the lower mold (3) to move towards or away from each other. When the upper mold (2) and the lower mold (3) are in contact, they cooperate to form a sealed molding cavity. When the upper mold (2) and the lower mold (3) are separated, there is a molding channel for the material to pass through between them. It is characterized in that: The machine body (1) includes a middle fixed plate (4). The fixed plate (4) is provided with a lower mounting surface for mounting the lower die (3). A limiting member that moves up and down is passed through the fixed plate (4). The limiting member at least includes a lower limiting member (41). A die slot (5) is provided at the bottom of the lower die (3) corresponding to the lower limiting member (41). Limiting slot walls (51) are provided on both the left and right sides of the die slot (5). The limiting member is engaged in the die slot (5), and the limiting slot walls (51) on both sides form a limit for the lower limiting member (41) in the left and right directions.

2. The mold installation mechanism of a blister machine according to claim 1, characterized in that: An upper cover plate (7) is provided above the machine body (1). The limiting member further includes an upper limiting member (8). The upper cover plate (7) is equipped with an upper limiting member (8) that moves up and down. A die slot (5) is also provided at the top of the upper die (2) corresponding to the upper limiting member (8). The upper surface of the upper die (2) is in contact connection with an upper mounting surface. The bottom surface of the upper cover plate (7) is the upper mounting surface, or one or several forming elements (71) are provided between the upper cover plate (7) and the upper die (2). The bottom surface of the lowermost forming element (71) is the upper mounting surface, and the upper limiting member (8) passes through the forming element (71).

3. The mold installation mechanism of a blister machine according to claim 1 or 2, characterized in that: The die slot (5) extends through the die along the front-rear direction.

4. The mold installation mechanism of a blister machine according to claim 3, characterized in that: The die slot (5) includes an outer guide slot (52) and an inner limiting slot (53). The width of the outer guide slot (52) is smaller than that of the inner limiting slot (53). The limiting member has a protruding end (61). The die slides forward and backward through the cooperation of the end (61) and the inner limiting slot (53).

5. The mold mounting mechanism of a blister machine according to claim 4, characterized in that: The height of the inner limiting slot (53) is higher than the thickness of the end (61). The cross-sectional shape of the widest part of the end (61) matches the cross-section of the inner limiting slot (53).

6. The die mounting mechanism of a blister machine according to claim 1 or 2, characterized in that: The limiting member has at least a first stroke and a second stroke. The displacement of the first stroke is to extend towards the forming channel direction. The displacement direction of the second stroke is the same as or opposite to that of the first stroke. After the displacement of the second stroke, the limiting member fits with the bottom of the inner limiting slot (53) or the slot wall between the outer guide slot (52) and the inner limiting slot (53).

7. The mold installation mechanism of a blister machine according to claim 6, characterized in that: The limiting member is connected to a lifting power source (62). The limiting member is located at the output end of the lifting power source (62), and the lifting power source (62) drives the limiting member to move up and down.

8. The mold mounting mechanism of a blister machine according to claim 1 or 2, characterized in that: The limiting member is a limiting bolt. The limiting bolt includes a screw rod. The screw rod can move up and down. The shape of the output end of the screw rod matches the limiting slot wall (51) of the die.

9. The mold mounting mechanism of a blister machine according to claim 1 or 2, characterized in that: At least one of the upper mounting surface and the lower mounting surface is provided with a protruding limiting block, and the limiting block blocks the further forward displacement of the lower die (3) and the upper die (2) during installation.

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