Thermal forming plastic vacuum forming machine

Abstract

The utility model discloses a thermoforming plastic vacuum forming machine, and relates to the technical field of plastic vacuum forming machines. According to the key points of the technical scheme, the device comprises a machine body and a placement table fixedly connected to the bottom face of the machine body, a plurality of limiting rods are slidably connected to the placement table, the adjacent limiting rods are slidably connected with each other, a sliding space with a rectangular section is defined by the limiting rods, and the maximum sectional area of the sliding space is larger than the sectional area of a mold; a plurality of limiting rods are arranged on the periphery of the mold, cut-off tools are connected into the limiting rods in a sliding mode, and when the limiting rods are subjected to pushing force enabling the limiting rods to be close to one another, the limiting rods abut against the peripheral wall of the mold. And the redundant part of the product is cut off through the cut-off tool connected in the limiting rod in a sliding mode, and the machining precision is improved while the machining efficiency of the product is guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of blister machines, and more particularly to a thermoforming blister machine. Background Art

[0002] The blister machine, also known as the thermoplastic forming machine, is a machine that sucks heated and plasticized thermoplastic coils into different shapes. It uses the vacuum suction force generated by a vacuum pump to suck the heated and softened plastic sheets into different shapes through a mold.

[0003] A blister machine is required in the production process of the anti-collision block on the car. Since the cross-sectional area of ​​the plastic sheet is larger than that of the mold, after the blister is completed, the product will form an excess part that needs to be cut off. Although the anti-collision block is a relatively regular rectangular block, the sizes of anti-collision blocks for different purposes are different. Therefore, when cutting anti-collision blocks of different sizes, it is usually necessary to cut them according to different sizes on an additional machine, which affects the processing efficiency. Therefore, a structure is set to solve the problem of low efficiency of the product during blister processing. Utility Model Content

[0004] In view of the shortcomings of the existing technology, the purpose of the present invention is to provide a thermoforming blister machine, which can improve the overall processing efficiency of the blister machine through structural settings.

[0005] The above technical purpose of the present utility model is achieved through the following technical solutions: a thermoforming blister machine, comprising a machine body and a placing table fixedly connected to the bottom surface of the machine body, a plurality of limit rods being slidably connected to the placing table, adjacent limit rods being slidably connected to each other, a plurality of limit rods being arranged to form a sliding space with a rectangular cross-section, the maximum cross-sectional area of ​​the sliding space being larger than the cross-sectional area of ​​the mold, a cutting knife being slidably connected inside the limit rod, and when the plurality of limit rods are subjected to a thrust that causes them to approach each other, the plurality of limit rods all abut against the outer peripheral wall of the mold.

[0006] The utility model is further configured as follows: sliding grooves are provided at both ends of the limiting rod arranged along the length direction of the placement platform, and the limiting rod arranged along the width direction of the placement platform is slidably connected to the inner wall of the sliding groove, and the length of the sliding groove is greater than the width of the limiting rod.

[0007] The utility model is further configured as follows: the cross-sectional shape of the limiting rod is L-shaped, the limiting rod is provided with a limiting groove for the sliding of the cutting knife, and the cross-sectional shape of the cutting knife is L-shaped.

[0008] The utility model is further configured as follows: the height of the limiting groove is the same as the height of the cutting knife, and the end of the cutting knife extending into the limiting groove abuts against the inner wall of the limiting rod.

[0009] The utility model is further configured as follows: a section of the cutting knife away from its own cutting head has elastic deformation performance, and both sides of the cutting knife are fixedly connected with a pressing plate that abuts against the inner wall of the limiting groove.

[0010] The utility model is further configured as follows: the hardness of the cutting knife is less than the hardness of the placement table, and the cutter head of the cutting knife is made of alloy steel.

[0011] To sum up, the utility model has the following beneficial effects: a plurality of limit rods slidably connected to each other make it better suitable for molds of different sizes, and since the sliding direction between adjacent limit rods is not fixed, the limit rods can also fit some molds with cutting bevels. Since the outer peripheral wall of the cutting knife abuts against the inner wall of the limiting groove, and the cutting knife abuts against the inner wall of the limit rod, the stable sliding of the cutting knife is guaranteed and the smoothness of the cutting edge is guaranteed. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a structural diagram of the utility model;

[0013] Figure 2 It is a cross-sectional view of the utility model;

[0014] Figure 3 for Figure 2 Enlarged view of part A in the middle.

[0015] In the figure: 1, machine body; 2, placing table; 3, limiting rod; 4, cutting knife; 5, sliding groove; 6, limiting groove; 7, pressing plate. DETAILED DESCRIPTION

[0016] The present invention will be described in detail below with reference to the accompanying drawings and embodiments.

[0017] A thermoforming blister machine, such as Figure 1 and Figure 2 As shown, it includes a body 1 and a placing table 2 fixedly connected to the bottom surface of the body 1. A number of limit rods 3 are slidably connected to the placing table 2. Therefore, the number of limit rods 3 can slide on the placing table 2 and resist the mold according to the different sizes of the mold. Adjacent limit rods 3 are slidably connected to each other. The number of limit rods 3 are arranged to form a sliding space with a rectangular cross-section. Since the number of limit rods 3 are not fixed, when there are some inclined surfaces on the mold, the limit rods 3 can also fit the surface shape of the mold to be inclined, further increasing the scope of application of the structure.

[0018] like Figure 1-Figure 3As shown, the maximum cross-sectional area of ​​the sliding space is larger than the cross-sectional area of ​​the mold. When the body 1 is in use, the cross-sectional area of ​​the sliding space is the largest, reducing the influence of the limit rod 3 on the normal use of the body 1. The limit rod 3 is slidably connected with a cutting knife 4. When several limit rods 3 are pushed closer to each other, several limit rods 3 are all against the outer wall of the mold. After the blister is completed, the worker applies a thrust to the several limit rods 3 in turn until they are against the outer wall of the mold, and then the worker applies a thrust to the cutting knife 4 to make it slide along the length direction of the limit rod 3, thereby realizing the cutting of excess material.

[0019] like Figure 1 and Figure 2 As shown, sliding grooves 5 are provided at both ends of the limit rod 3 arranged along the length direction of the placing table 2, and the limit rod 3 arranged along the width direction of the placing table 2 is slidably connected to the inner wall of the sliding groove 5. The height of the sliding groove 5 is the same as the height of the limit rod 3. Therefore, the inner wall of the sliding groove 5 guides and limits the sliding of the limit rod 3, reducing the height displacement of the limit rod 3 during use. The length of the sliding groove 5 is greater than the width of the limit rod 3. The distance between the side walls of adjacent sliding grooves 5 on the same limit rod 3 is equal to the width of the smallest model mold, ensuring comprehensive restriction of the limit rod 3 and the mold.

[0020] like Figure 1-Figure 3 As shown, the cross-sectional shape of the limit rod 3 is L-shaped, and a limiting groove 6 for the cutting knife 4 to slide is provided on the limit rod 3. The cross-sectional shape of the cutting knife 4 is L-shaped, so the blade head of the cutting knife 4 can extend into the limiting groove 6 and the other end passes through the limit rod 3, and the length of the part of the cutting knife 4 extending out of the limit rod 3 is three times the length of the blade head, thereby increasing the contact area between the worker's hand and the limit rod 3, so that people can better apply thrust to the limit rod 3 to make it slide in the limiting groove 6 and achieve cutting of the material.

[0021] like Figure 1-Figure 3 As shown, the height of the limiting groove 6 is the same as the height of the cutting knife 4, and the end of the cutting knife 4 extending into the limiting groove 6 is against the inner wall of the limiting rod 3, and the length of the part of the cutting knife 4 extending into the limiting groove 6 is the same as the length of the side of the limiting rod 3 close to each other. Therefore, when the limiting rod 3 is against the outer peripheral wall of the mold, the side wall of the cutting knife 4 is also against the outer peripheral wall of the mold. Because the outer peripheral wall of the cutting knife 4 is against the inner wall of the limiting groove 6, the cutting knife 4 cannot be displaced forward and backward and up and down, and can only slide along the length direction of the limiting groove 6, thereby ensuring the cutting accuracy of the cutting knife 4.

[0022] like Figure 1-Figure 3As shown, a section of the cutting knife 4 away from its own cutting head is set to be made of rubber material, and pressing plates 7 are bonded on both sides of the cutting knife 4, which are against the inner wall of the limiting groove 6. In the initial state, the cutting head is against the placement table 2. When the limit rod 3 needs to be displaced, people need to apply a large pressure on the pressing plate 7 to make the cutting knife 4 undergo extrusion deformation. Therefore, when workers push the cutting knife 4 to cut materials normally, the side wall of the cutting knife 4 will not be deformed. The thickness of the deformed cutting knife 4 is reduced, which will drive the cutting head to move away from the placement table 2, reducing the situation where the cutting knife 4 is against the placement table 2 during the movement of the limit rod 3. When the limit rod 3 moves to against the mold, the pressure of the worker on the cutting knife 4 disappears, so that the cutting knife 4 is reset under the action of its own elastic deformation performance and drives the cutting head to be against the placement table 2.

[0023] like Figure 1 and Figure 3 As shown, the hardness of the cutting knife 4 is less than that of the placing table 2, and the blade head of the cutting knife 4 is made of alloy steel, which ensures that the cutting knife 4 can stably cut the material while reducing the wear of the cutting knife 4 on the placing table 2 during movement, thereby extending the service life of the placing table 2.

[0024] Working principle: In the initial state, the cross-sectional area of ​​the sliding space is the largest. When the material needs to be cut, the worker applies a thrust to the limit rod 3 in turn to move it toward the mold until it contacts it. During the movement, the worker applies pressure to the pressing plate 7 to make the blade head of the cutting knife 4 move away from the placement table 2. When all the limit rods 3 contact the mold, the worker slides the cutting knife 4 in turn to make it slide in the limiting groove 6, thereby achieving the removal of excess material.

[0025] The above description is merely a preferred embodiment of the present invention. The scope of protection of the present invention is not limited to the above embodiment. All technical solutions based on the concept of the present invention are within the scope of protection of the present invention. It should be noted that for those skilled in the art, certain improvements and modifications that do not depart from the principles of the present invention should also be considered within the scope of protection of the present invention.

Claims

1. A thermoforming blister machine, comprising a machine body (1) and a placement table (2) fixedly connected to the bottom surface of the machine body (1), characterized in that: A plurality of limiting rods (3) are slidably connected to the placing table (2), and adjacent limiting rods (3) are slidably connected to each other. The limiting rods (3) are arranged to form a sliding space with a rectangular cross-section. The maximum cross-sectional area of ​​the sliding space is larger than the cross-sectional area of ​​the mold. A cutting knife (4) is slidably connected inside the limiting rods (3). When the limiting rods (3) are subjected to a thrust that causes them to approach each other, the limiting rods (3) all abut against the outer peripheral wall of the mold.

2. A thermoforming blister machine according to claim 1, characterized in that: Both ends of the limiting rod (3) arranged along the length direction of the placement platform (2) are provided with sliding grooves (5); the limiting rod (3) arranged along the width direction of the placement platform (2) is slidably connected to the inner wall of the sliding groove (5); the length of the sliding groove (5) is greater than the width of the limiting rod (3).

3. The thermoforming blister machine according to claim 1, characterized in that: The cross-sectional shape of the limiting rod (3) is L-shaped. A limiting groove (6) for the cutting knife (4) to slide is provided on the limiting rod (3). The cross-sectional shape of the cutting knife (4) is L-shaped.

4. A thermoforming blister machine according to claim 3, characterized in that: The height of the limiting groove (6) is the same as that of the cutting knife (4), and one end of the cutting knife (4) extending into the limiting groove (6) abuts against the inner wall of the limiting rod (3).

5. The thermoforming blister machine according to claim 3, characterized in that: A section of the cutting knife (4) away from its own cutting head has elastic deformation performance, and both sides of the cutting knife (4) are fixedly connected with a pressing plate (7) that abuts against the inner wall of the limiting groove (6).

6. The thermoforming blister machine according to claim 1, characterized in that: The hardness of the cutting knife (4) is less than the hardness of the placement table (2), and the blade head of the cutting knife (4) is made of alloy steel.

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