A blister forming machine with quick die changing

Abstract

The utility model provides a blister forming machine of quick die change, including blister forming machine structure, it includes blister forming machine body, the inside of blister forming machine body is provided with the discharge slot, the both sides of discharge slot inner wall bottom are provided with the support strip, the top of two support strips is provided with the discharge board, the inside of discharge board is provided with the air storehouse. The utility model discloses reasonable, through the lower mould structure of setting can quickly put plastic sheet into the inside of lower pressure mould structure, then through the quick fixing of lower pressure mould structure to plastic sheet, and place material in the inside of blister forming machine structure, then the plastic sheet of lower pressure mould structure is fixed heating and drives plastic sheet to move downward, make the plastic sheet after heating can quickly contact with the outer wall of mould, to form the shape of mould.

Description

TECHNICAL FIELD

[0001] The utility model mainly relates to blister forming machine field, concretely relates to a blister forming machine of quick die change. BACKGROUND

[0002] Blister forming is a process widely used in the production of plastic packaging, trays, liners and other products. Its basic process is to heat the plastic sheet (such as PVC, PET, PS, PP, etc.) to a softened state, and then vacuum suction or air pressure forming through the mold, and the product of the required shape is obtained after cooling.

[0003] The inventor found the following defects in the specific embodiment operation process: Each time the die is changed, the operator needs to loosen all the fasteners one by one, remove the old sheet residue and clean the frame, place the new sheet, and then tighten all the fasteners one by one. This process completely relies on manual labor, consumes a lot of time and physical effort, and prolongs the non-productive downtime, which cannot meet the production requirements of modern manufacturing for "small batch, multi-variety" rapid switching.

[0004] It should be noted that the above content belongs to the technical cognition of the inventor. Due to the vast and complex technical content in this field, the above content of the present application does not necessarily constitute the prior art. CONTENT OF THE UTILITY MODEL

[0005] 1. Technical problem to be solved by the utility model: The utility model provides a blister forming machine of quick die change to solve the technical problems existing in the above background technology.

[0006] 2. Technical scheme: In order to achieve the above purpose, the utility model provides a technical scheme: a blister forming machine of quick die change, comprising a blister forming machine structure, the inside of the blister forming machine structure is provided with a lower pressing mold structure; The blister forming machine structure comprises a blister forming machine body, a discharge chute is formed in the inside of the blister forming machine body, support strips are arranged on the both sides of the bottom of the inner wall of the discharge chute, a discharge plate is arranged on the top of the two support strips, an air chamber is formed in the inside of the discharge plate, an air hole is formed on the top of the discharge plate, and the air hole is connected with the air chamber.

[0007] Further, a heating pipe is arranged on the top of the inner wall of the discharge chute, and guide grooves are formed on the both sides of the outer wall of the blister forming machine body.

[0008] Further, the number of air holes is set to be multiple, and multiple air holes are distributed on the top of the discharge plate at equal intervals.

[0009] Further, the lower die structure comprises electric telescopic rods, side plates and mounting blocks, the electric telescopic rods are arranged on both sides of the top of the inner wall of the material feeding groove, the bottom of the electric telescopic rod is provided with connecting strips, and placing strips are arranged between the two connecting strips.

[0010] Further, the inner side of the side plate is provided with a sliding strip which is slidingly connected to the inner wall of the guide groove, one end of the sliding strip is provided with a servo motor, the output end of the servo motor is provided with a rotating strip, and both ends of the rotating strip are rotatably connected with positioning blocks, and the outer walls of the two positioning blocks are attached to the outer walls of the two placing strips.

[0011] Further, the inside of the mounting block is provided with a sliding rod which is slidingly connected between the sliding rod and the insertion hole, and a return spring is arranged between the mounting block and the placing strip.

[0012] 3. Beneficial effects: Compared with the prior art, the technical scheme has the following beneficial effects: The lower die structure can quickly place the plastic sheet into the inside of the lower die structure, then quickly fix the plastic sheet through the lower die structure, place the material in the inside of the vacuum forming machine structure, then fix and heat the plastic sheet through the lower die structure and drive the plastic sheet to move downward, so that the plastic sheet after heating can quickly contact the outer wall of the mold, thereby forming the shape of the mold. BRIEF DESCRIPTION OF DRAWINGS

[0013] Fig. 1 It is a three-dimensional structure schematic view of the utility model; Fig. 2 It is a three-dimensional sectional structure schematic view of the vacuum forming machine structure of the utility model; Fig. 3 It is a three-dimensional expanded structure schematic view of the lower die structure of the utility model.

[0014] Reference signs: 1, vacuum forming machine structure; 101, vacuum forming machine body; 102, material feeding groove; 103, guide groove; 104, heating pipe; 105, supporting strip; 106, material feeding plate; 107, air chamber; 108, air hole; 2, lower die structure; 201, electric telescopic rod; 202, connecting strip; 203, placing strip; 204, insertion hole; 205, positioning block; 206, rotating strip; 207, servo motor; 208, sliding strip; 209, side plate; 210, mounting block; 211, sliding rod; 212, return spring. DETAILED DESCRIPTION

[0015] For the convenience of understanding the utility model, the utility model will be described more fully below with reference to the relevant drawings, and several embodiments of the utility model are given in the drawings, but the utility model can be realized in many different forms and is not limited to the embodiments described herein, on the contrary, the purpose of providing these embodiments is to make the disclosure of the utility model more thorough and comprehensive.

[0016] In the description of the utility model, it is understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "page", "bottom", "inner", "outer", "clockwise", "counterclockwise" and the like is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the utility model and simplifying the description, and therefore cannot be understood as indicating or implying that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the utility model.

[0017] In addition, the terms "first" and "second" are only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined with "first" and "second" can explicitly or implicitly include one or more of the features. In the description of the utility model, the meaning of "multiple" is two or more, unless otherwise specifically limited.

[0018] In the utility model, unless otherwise specifically defined and limited, the terms "mounting", "connection", "connection", "fixing", "provided with", "provided in" and the like should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the communication inside two elements. For ordinary skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances. Embodiment

[0019] Referring to the drawings Figs. 1-3 A blister forming machine capable of rapid mold changing, comprising a blister forming machine structure 1, a lower mold structure 2 is arranged in the blister forming machine structure 1; The vacuum forming machine structure 1 includes a vacuum forming machine body 101. A material feeding groove 102 is provided inside the vacuum forming machine body 101. Support bars 105 are provided on both sides of the bottom of the inner wall of the material feeding groove 102. A material feeding plate 106 is provided on the top of the two support bars 105. An air chamber 107 is provided inside the material feeding plate 106. An air hole 108 is provided on the top of the material feeding plate 106 and is connected to the air chamber 107. A heating pipe 104 is provided on the top of the inner wall of the material feeding groove 102. The vacuum forming machine body... Guide grooves 103 are provided on both sides of the outer wall of 101. The number of air holes 108 is set to multiple. The multiple air holes 108 are evenly distributed on the top of the feeding plate 106. The mold is directly placed on the surface of the feeding plate 106, and then the air pump is started. The air pump on the outer wall adsorbs the mold through the air chamber 107 and the air holes 108. At the same time, the uncovered air holes 108 are used to discharge the air between the plastic sheet and the mold, so that the heated plastic sheet can be adsorbed on the surface of the mold. The heating tube 104 is used to adsorb the surface of the plastic sheet.

[0020] Furthermore, the pressing die structure 2 includes an electric telescopic rod 201, a side plate 209, and a mounting block 210. The electric telescopic rod 201 is disposed on both sides of the top of the inner wall of the material discharge groove 102. A connecting strip 202 is provided at the bottom of the electric telescopic rod 201, and a placement strip 203 is provided between the two connecting strips 202. The number of placement strips 203 is set to two, and insertion holes 204 are opened at the four corners of the placement strip 203. A slide bar 208 is provided on the inner side of the side plate 209. The slide bar 208 is slidably connected to the inner wall of the guide groove 103. A servo motor 207 is provided at one end of the slide bar 208, and a rotation bar is provided at the output end of the servo motor 207. 206, the two ends of the rotating bar 206 are rotatably connected to positioning blocks 205, the outer walls of the two positioning blocks 205 are in contact with the outer walls of the two placement bars 203, the mounting block 210 is provided with a sliding rod 211 inside, the sliding rod 211 is slidably connected to the insertion hole 204, and a return spring 212 is provided between the mounting block 210 and the placement bar 203. The plastic sheet is placed between the two placement bars 203, and then the sliding bar 208 is activated. The sliding bar 208 drives the rotating bar 206 to rotate, and the rotating bar 206 drives the positioning blocks 205 to move, so that the rotating bar 206 pushes the bottom placement bar 203 to move upward, so that the two placement bars 203 can clamp the plastic sheet. Then, the electric telescopic rod 201 is activated, which drives the placement bar 203 to move upward. The placement bar 203 drives the internal plastic sheet to move upward and contact the heating tube 104. The heating tube 104 contacts the temperature controller and the heater, so that the heating tube 104 heats and softens the plastic sheet. Then, the electric telescopic rod 201 moves downward, which drives the placement bar 203 to move downward, so that the placement bar 203 drives the internal plastic sheet to move downward and contact the mold. Then, the pump continues to run, so that the air hole 108 discharges the gas between the plastic sheet and the mold, so that the plastic sheet contacts the surface of the mold.

[0021] Mold installation: Place the mold on the feeding plate 106. Start the external air pump, which uses the air chamber 107 and air holes 108 to vacuum-adhere and fix the mold, ensuring that the mold is in a stable position.

[0022] Plastic sheet clamping: The plastic sheet is placed between the two placement strips 203. The servo motor 207 is activated, driving the rotating strip 206 to rotate, which in turn moves the positioning block 205. The positioning block 205 pushes the placement strips 203 towards the center, and the two placement strips 203 clamp the plastic sheet together through the buffering action of the return spring 212. The sliding connection between the slide rod 211 and the insertion hole 204 ensures a smooth clamping process.

[0023] Heating stage: The electric telescopic rod 201 is activated, which, via the connecting strip 202, moves the placement strip 203 and the plastic sheet upwards. The plastic sheet enters the heating zone and comes into contact with the heating element 104. The heating element 104 heats and softens the plastic sheet; the temperature is controlled by a temperature controller and a heater to ensure uniform heating.

[0024] Molding stage: The electric telescopic rod 201 moves downwards, causing the softened plastic sheet to move downwards and contact the mold surface. The external air pump continues to operate, expelling air between the plastic sheet and the mold through the air hole 108, creating a vacuum suction. The plastic sheet adheres tightly to the mold surface, forming the desired shape.

[0025] Cooling and demolding: After the plastic sheet cools and sets, the air pump stops working, releasing the vacuum suction. The servo motor 207 reverses, driving the positioning block 205 to retract, and the placement bar 203 releases the plastic sheet under the action of the return spring 212. The molded product is then removed, completing one cycle.

[0026] The above-described embodiments are merely illustrative of certain implementations of this utility model, and their descriptions are relatively specific and detailed. However, they should not be construed as limiting the scope of this utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these modifications and improvements all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.

Claims

1. A vacuum forming machine with quick mold changing capability, characterized in that: include The vacuum forming machine structure (1) has a pressure mold structure (2) inside. The vacuum forming machine structure (1) includes a vacuum forming machine body (101), the vacuum forming machine body (101) has a material feeding groove (102) inside, the material feeding groove (102) has support bars (105) on both sides of the bottom of the inner wall of the material feeding groove (102), the top of the two support bars (105) has a material feeding plate (106), the material feeding plate (106) has an air chamber (107) inside, the top of the material feeding plate (106) has an air hole (108) connected to the air chamber (107).

2. The vacuum forming machine with quick mold changing according to claim 1, characterized in that: A heating tube (104) is provided on the top of the inner wall of the feeding trough (102), and guide grooves (103) are provided on both sides of the outer wall of the thermoforming machine body (101).

3. The vacuum forming machine with quick mold changing according to claim 1, characterized in that: The number of air holes (108) is set to multiple, and the multiple air holes (108) are distributed at equal intervals on the top of the feeding plate (106).

4. The vacuum forming machine with quick mold changing according to claim 1, characterized in that: The pressing mold structure (2) includes an electric telescopic rod (201), a side plate (209) and a mounting block (210). The electric telescopic rod (201) is located on both sides of the top of the inner wall of the material discharge trough (102). A connecting strip (202) is provided at the bottom of the electric telescopic rod (201). A placement strip (203) is provided between the two connecting strips (202). The number of placement strips (203) is set to two. Insertion holes (204) are provided at the four corners of the placement strips (203).

5. The vacuum forming machine with quick mold changing according to claim 4, characterized in that: A slide bar (208) is provided on the inner side of the side plate (209). The slide bar (208) is slidably connected to the inner wall of the guide groove (103). A servo motor (207) is provided at one end of the slide bar (208). A rotating bar (206) is provided at the output end of the servo motor (207). Positioning blocks (205) are rotatably connected to both ends of the rotating bar (206). The outer walls of the two positioning blocks (205) are in contact with the outer walls of the two placement bars (203).

6. The vacuum forming machine with quick mold changing according to claim 4, characterized in that: The mounting block (210) is provided with a slide rod (211) inside, the slide rod (211) is slidably connected to the insertion hole (204), and a return spring (212) is provided between the mounting block (210) and the placement strip (203).

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