Heating device for blister tray production

Abstract

The utility model relates to the technical field of blister tray production, and discloses a heating device for blister tray production, which comprises a mounting frame, a lower supporting plate arranged at the top of the mounting frame, an upper heating plate matched with the top of the lower supporting plate, a first roller arranged on one side of the lower supporting plate, and a second roller arranged on the other side of the lower supporting plate. When a plastic film material of a plastic uptake disc is heated, the material supplied to the plastic uptake device is matched between the rollers I, then penetrates through the space between the lower supporting plate and the upper heating plate, and then is matched with the top of the roller II, and at the moment, the electric heating belt and the electric heating strip are electrified to heat the material; during heating, the material is matched with the top of the rolling part, and the heated and softened material can be supported through the rolling supporting effect of the rolling part at the bottom of the material, so that the problem that the material deforms downwards due to heating and softening is avoided, the shape of the material can be maintained during heating, and heating operation on the material of the blister tray is facilitated.

Description

Technical Field

[0001] This utility model relates to the field of blister tray production technology, specifically a heating device for blister tray production. Background Technology

[0002] Blister trays are containers made of plastic through a thermoforming process, widely used in food packaging, electronics, toys, and other fields. They are typically lightweight, durable, and have a clear appearance, effectively protecting products and enhancing their display. Blister tray designs can be customized to suit the shape and size of products, meeting the needs of different markets. During the blister packaging process, the plastic material can be preheated to facilitate better deformation during the blister forming process.

[0003] Existing heating devices for blister tray production typically use electric heating wires close to the plastic material for heating. When the electric heating wire is energized, it generates heat that heats the air between the plastic material and the heating wire, thus softening the plastic material. However, when the material softens due to heat, it is prone to downward deformation due to its own gravity, which can easily cause deformation of the plastic material during heating and is not conducive to subsequent blister production. Therefore, we propose a heating device for blister tray production. Utility Model Content

[0004] The purpose of this invention is to provide a heating device for the production of blister packs, so as to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a heating device for producing blister trays, comprising a mounting frame, a lower support plate at the top of the mounting frame, an upper heating plate fitted on the top of the lower support plate, a first roller on one side of the lower support plate and a second roller on the other side, a sliding plate slidably fitted on the top of the lower support plate, a plurality of support rods at the top of the sliding plate, a plurality of rolling elements sleeved on the outside of the support rods, a plurality of electric heating strips embedded in the top of the sliding plate, a connecting wire on the side wall of the sliding plate, and a controller fitted to the connecting wire on the side wall of the mounting frame.

[0006] Preferably, the pull plate is equipped with multiple limiting rollers on both sides, and the limiting rollers are located on the top of the lower support plate.

[0007] Preferably, a pulling member is fixedly connected to the side wall of the pull plate, and elastic clips are provided on both sides of the pulling member.

[0008] Preferably, the bottom of the upper heating plate is provided with a plurality of electric heating strips, and the side wall of the upper heating plate is fixedly connected with a rear side plate.

[0009] Preferably, a baffle is fixedly connected to the top of the pulling member, and the baffle is fitted between the lower support plate and the upper heating plate.

[0010] Preferably, the bottom of the baffle is machined with a notch, and the connecting line fits into the inside of the notch.

[0011] Preferably, a support plate is provided on one side wall of the roller, and the support plate is fixed to the side wall of the upper heating plate.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] 1. In the heating operation of the plastic film material in the blister pack, the material fed to the blister pack can be placed between the first roller and then pass between the lower support plate and the upper heating plate, and then placed on the top of the second roller. At this time, the electric heating belt and electric heating strip are energized to heat the material. When the material is heated, it is placed on the top of the rolling element. The rolling element can support the heated and softened material by rolling at the bottom of the material, thereby avoiding the problem of the material softening and deforming downwards. This allows the material to maintain its shape during heating, which facilitates the heating operation of the blister pack material.

[0014] 2. When the material is heated, the two elastic cards can be snapped outwards. This allows the puller to be pulled outwards, which in turn allows the baffle and the pull plate to be pulled outwards. This allows the dust and dirt that fall onto the pull plate during the heating of the material to be cleaned, thus preventing the rolling parts from being contaminated by dust and dirt and causing pollution to the material to be heated later. It also facilitates the inspection and maintenance of the rolling parts and electric heating belt on the pull plate. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0016] Figure 2 This is a schematic diagram of the pull-out plate structure of this utility model;

[0017] Figure 3 This is a schematic diagram of the bottom structure of the upper heating plate of this utility model;

[0018] Figure 4 For the present utility model Figure 2 A magnified structural diagram of position A in the middle.

[0019] In the diagram: 100, mounting bracket; 101, controller; 102, connecting cable; 110, lower support plate; 111, upper heating plate; 112, heat insulation plate; 113, rear side plate; 120, roller one; 121, support plate; 122, roller two; 130, pulling component; 131, elastic clip; 132, baffle; 140, pull plate; 141, support rod; 142, rolling component; 143, electric heating belt; 144, limit roller. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0021] Example

[0022] Please see Figures 1-4The figure shows a heating device for producing blister packs, including a mounting frame 100. The heating device can be bolted to the mounting frame 100 and installed between the feeding structure and the blister pack. A lower support plate 110 is bolted to the top of the mounting frame 100. An upper heating plate 111 is fitted onto the top of the lower support plate 110. Rollers 120 and 122 are provided on one side of the lower support plate 110. Rollers 120 and 122 are made of rigid plastic with smooth surfaces. Roller 122 is provided on the other side. A sliding fit is provided on the top of the lower support plate 110. A retractable plate 140 has multiple support rods 141 on its top, each made of stainless steel. Multiple rolling elements 142, made of common heat-resistant ceramic with a smooth surface, are fitted around the support rods 141. Multiple electric heating elements 143 are embedded in the top of the retractable plate 140. A connecting wire 102 is provided on the side wall of the retractable plate 140. A controller 101 supplies power to the electric heating elements 143 via the connecting wire 102. A control unit that works in conjunction with the connecting wire 102 is provided on the side wall of the mounting bracket 100. The heating element 101, electric heating band 143, and electric heating strip are made of commercially available electric heating wire. The electric heating wire mainly consists of a nickel-chromium alloy wire, a heat-resistant silicone outer sheath, and a thermocouple temperature sensor, and is connected to the controller 101. When the electric heating wire is energized, the nickel-chromium alloy wire generates heat. At the same time, the thermocouple temperature sensor is used to detect the temperature and cooperate with the controller 101 to adjust the temperature. The controller 101 uses a commercially available electronic temperature control switch for electric heating wire. The electronic temperature control switch consists of a control circuit, a display, and a switch drive circuit. The thermocouple temperature sensor monitors the temperature of the electric heating wire in real time and transmits the measured temperature signal to the control circuit. The control circuit compares it with the target temperature set by the user. When the actual temperature reaches the set value, the switch drive circuit cuts off the power and stops heating. When the temperature is lower than the set value, the switch drive circuit reconnects the power and starts heating again. As is existing technology, the controller 101 uses a power cord to connect to an external circuit for power supply. The controller 101 supplies power to the electric heating strip through wires embedded in the lower support plate 110 and the rear side plate 113.

[0023] Specifically, the pull plate 140 is equipped with multiple limiting rollers 144 on both sides. When the pull plate 140 is installed, it can slide between the limiting rollers 144. The limiting rollers 144 are rotatably connected to the top of the lower support plate 110.

[0024] Furthermore, a pull member 130 is bolted to the side wall of the pull plate 140, and elastic clips 131 are provided on both sides of the pull member 130. The elastic clips 131 are made of common elastic steel sheets.

[0025] Furthermore, multiple electric heating strips are embedded at the bottom of the upper heating plate 111, and the rear side plate 113 is fixed to the side wall of the upper heating plate 111 by bolts.

[0026] Furthermore, a baffle 132 is fixedly connected to the top of the pull member 130. The baffle 132 is fitted between the lower support plate 110 and the upper heating plate 111. The baffle 132 is a common heat insulation foam board.

[0027] It is worth noting that the bottom of the baffle 132 has a notch, and the connecting line 102 fits into the inside of the notch.

[0028] It is worth noting that the roller 120 is provided with a support plate 121 on its side wall, and the support plate 121 is fixed to the side wall of the upper heating plate 111 by bolts.

[0029] In addition, the circuits, electronic components and modules involved in this utility model are all existing technologies, which can be fully implemented by those skilled in the art, and need not be elaborated upon. The content protected by this utility model does not involve any improvement to the internal structure and method.

[0030] Working Principle: During the heating operation of the plastic film material in the blister pack, the material fed to the blister pack is positioned between rollers 120, passes between the lower support plate 110 and the upper heating plate 111, and then rests on top of roller 122. At this time, the electric heating belt 143 and the electric heating strip are energized to heat the material. While the material is being heated, it rests on top of the rolling element 142. The rolling support of the rolling element 142 at the bottom of the material supports the softened material, thus preventing downward deformation due to softening. This allows the material to maintain its shape during heating. The shape is maintained, which facilitates the heating operation of the material in the blister tray; when the heating operation of the material is completed, the two elastic cards 131 can be snapped outwards respectively. At this time, the pull member 130 can be pulled outwards, and the baffle 132 and the pull plate 140 can be pulled outwards. At this time, the dust and dirt that fell on the pull plate 140 during the heating of the material can be cleaned, thereby avoiding the contamination of the material to be heated later by too much dust and dirt on the rolling member 142. At the same time, it is convenient to inspect and maintain the rolling member 142 and the electric heating belt 143 on the pull plate 140.

[0031] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0032] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A heating device for blister tray production, comprising a mounting frame (100), characterized in that: The mounting frame (100) is provided with a lower supporting plate (110) at the top, an upper heating plate (111) is matched at the top of the lower supporting plate (110), a roller one (120) is arranged on one side of the lower supporting plate (110), a roller two (122) is arranged on the other side, a sliding plate (140) is slidably matched at the top of the lower supporting plate (110), a plurality of supporting rods (141) are arranged at the top of the sliding plate (140), a plurality of rolling elements (142) are sleeved outside the supporting rods (141), a plurality of electric heating bands (143) are embedded at the top of the sliding plate (140), a connecting line (102) is arranged on the side wall of the sliding plate (140), and a controller (101) matched with the connecting line (102) is arranged on the side wall of the mounting frame (100).

2. The heating device for blister tray production according to claim 1, characterized in that: A plurality of limiting rollers (144) are matched on both sides of the sliding plate (140), and the limiting rollers (144) are arranged at the top of the lower supporting plate (110).

3. The heating device for blister tray production of claim 1, wherein: A pulling element (130) is fixedly connected to the side wall of the sliding plate (140), and elastic clamping pieces (131) are arranged on both sides of the pulling element (130).

4. The heating device for blister tray production of claim 1, wherein: A plurality of electric heating strips are embedded at the bottom of the upper heating plate (111), and a rear plate (113) is fixedly connected to the side wall of the upper heating plate (111).

5. The heating device for blister tray production of claim 3, wherein: A baffle (132) is fixedly connected to the top of the pulling element (130), and the baffle (132) is matched between the lower supporting plate (110) and the upper heating plate (111).

6. The heating device for blister tray production of claim 5, wherein: A notch is formed at the bottom of the baffle (132), and the connecting line (102) is matched in the notch.

7. The heating device for blister tray production of claim 1, wherein: A supporting piece (121) is arranged on the side wall of the roller one (120), and the supporting piece (121) is fixedly connected to the side wall of the upper heating plate (111).

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