Vacuum cup necking device

Abstract

The utility model belongs to the technical field of vacuum cup processing, and particularly relates to a vacuum cup necking device which comprises a supporting disc fixedly connected to one end of a fixing column, a telescopic bin and sliding blocks distributed around the outer side of the telescopic bin in an array mode are fixedly arranged at the top of the supporting disc, and petal-shaped molds are fixedly connected to the tops of the sliding blocks. Reinforcing nets are fixedly connected to the outer arc positions of the side walls of the petal-shaped molds, and elastic pads are fixedly connected to one sides of the reinforcing nets. The screwing-in mechanism can be controlled to rotate or be fixed through the fastening mechanism, the petal-shaped molds are controlled to stretch out and draw back synchronously through the screwing-in mechanism so as to support cups with different calibers in a matched mode, the elastic pads can prevent the inner walls of the cups from colliding with the petal-shaped molds, and the contact area between the elastic pads and the inner walls of the cups can be enlarged when the elastic pads are squeezed. And the fitting degree of the inner wall of the cup and the petal-shaped mold is improved, so that the mold replacement frequency is reduced, and the cost for casting various molds is saved.

Description

Technical Field

[0001] This utility model belongs to the field of thermos cup processing technology, specifically relating to a thermos cup necking device. Background Technology

[0002] The process of narrowing the mouth of a thermos cup refers to reducing the size of the mouth of a pre-formed cylindrical or tubular blank through a specific process to improve its sealing performance and appearance quality. This is generally done using a dedicated narrowing device. In the operation of the thermos cup narrowing device, the inner mold (bottom mold) is the key component that directly contacts the thermos cup blank and provides support. The thermos cup blank is placed on the inner mold (bottom mold) of the support plate, and the outer mold (upper pressure plate) descends to lightly touch the mouth of the cup. The cup mouth material undergoes plastic deformation under bidirectional extrusion.

[0003] The existing thermos cup necking device has poor adaptability of the inner mold when processing cups of different diameters. It cannot adjust its own mold diameter according to the change of the inner wall diameter of the cup. This not only leads to the need to change the mold frequently, affecting efficiency, but also requires more consumables for casting multiple molds, increasing production costs. Utility Model Content

[0004] The purpose of this invention is to provide a thermos cup necking device. The fastening mechanism can control the rotation or fixation of the screwing mechanism, and the screwing mechanism controls the synchronous expansion and contraction of the petal mold to adapt to and support cups of different diameters. The elastic pad can prevent the inner wall of the cup from colliding with the petal mold, and can also increase the contact area with the inner wall of the cup when compressed, thereby improving the fit between the inner wall of the cup and the petal mold, thus reducing the frequency of mold replacement and saving the cost of casting multiple molds.

[0005] The specific technical solution adopted by this utility model is as follows:

[0006] A thermos cup neck-shrinking device includes a support plate fixedly connected to one end of a fixed column. A telescopic chamber is fixedly mounted on the top of the support plate, and sliding blocks arranged in an array around its outer side. Each sliding block has a petal-shaped mold fixedly connected to its top, and a reinforcing mesh is fixedly connected to the outer arc of each petal-shaped mold's sidewall. An elastic pad is fixedly connected to one side of the reinforcing mesh. A sleeve is fixedly connected through the top of the telescopic chamber. The telescopic chamber contains a screw-in mechanism for controlling the synchronous extension and retraction of the sliding blocks. The screw-in mechanism includes a rotating tube rotatably disposed inside the sleeve. One end of the tube is provided with a fastening mechanism for controlling the rotation of the tube. The fastening mechanism includes a bolt, one end of which is fixedly connected to a bolt head. One side of the bolt head is fixedly connected to a first insert plate. The first insert plate has a pin groove in its middle. The outer wall of the bolt is movably fitted with a second insert plate. One end of the sleeve has a second groove. One end of the rotating tube has a first groove. The second insert plate is movably fitted with both the first and second grooves. One end of the rotating tube has a threaded hole at its center, located inside the sleeve. The threaded hole is used for threaded connection with the bolt.

[0007] The screwing mechanism also includes a rotating disk rotatably assembled inside the telescopic compartment, and one end of the rotating tube is fixedly connected to the rotating disk.

[0008] The telescopic compartment has several through holes arranged in an array on its side arms. Telescopic rods are slidably connected to the inner walls of the through holes and below the rotating disk. One end of the telescopic rod located on the outside of the telescopic compartment is fixedly connected to the sliding block.

[0009] The inner side of the rotating disk has several arc-shaped through slots arranged in an array. One end of the telescopic rod located inside the telescopic chamber is fixedly connected to a protruding rod, and several of the telescopic rods are slidably connected to the arc-shaped through slots through the protruding rods.

[0010] The outer wall of one end of the sleeve is provided with a narrowing mechanism, and the inner wall contour matches the narrowing shape of the cup body.

[0011] A washer is movably fitted on the outer wall of the bolt and on one side of the second insert. The middle part of the second insert is set as an annular column, and rectangular plates extending outward are symmetrically fixedly connected on both sides of the annular column.

[0012] When the screw hole is separated from the bolt, the insert plate is used to engage with the groove to control the rotation of the rotating tube.

[0013] The technical effects achieved by this utility model are as follows: the fastening mechanism can control the rotation or fixation of the screw-in mechanism, and the screw-in mechanism can control the synchronous extension and retraction of the petal mold to adapt to support cups of different diameters. The elastic pad can not only prevent the inner wall of the cup from colliding with the petal mold, but also expand the contact area with the inner wall of the cup when squeezed, improve the fit between the inner wall of the cup and the petal mold, thereby reducing the frequency of mold replacement and saving the cost of casting multiple molds. Attached Figure Description

[0014] Figure 1 This is an external view of the thermos cup neck-shrinking device provided in an embodiment of this utility model;

[0015] Figure 2 yes Figure 1 A magnified view of a section at point A in the middle;

[0016] Figure 3 This is a sectional view of the cup-warming and necking device provided in an embodiment of this utility model;

[0017] Figure 4 yes Figure 3 A magnified view of a section at point B in the middle;

[0018] Figure 5 yes Figure 4 A magnified view of a section at point C.

[0019] The attached diagram lists the components represented by each number as follows:

[0020] 1. Fixed column; 101. Support plate; 102. Telescopic compartment; 103. Perforation; 104. Rotating plate; 105. Arc-shaped through groove; 106. Telescopic rod; 107. Protruding rod; 108. Rotating tube; 109. Sleeve; 110. Narrowing mechanism; 111. Bolt; 112. Bolt head; 113. Panel one; 114. Needle groove; 115. Washer; 116. Panel two; 117. Screw hole; 118. Groove one; 119. Groove two; 120. Sliding block; 121. Petal mold; 122. Elastic pad; 123. Reinforcing mesh. Detailed Implementation

[0021] To make the objectives and advantages of this utility model clearer, the following detailed description is provided in conjunction with embodiments. It should be understood that the following text is merely used to describe one or more specific embodiments of this utility model and does not strictly limit the scope of protection specifically claimed by this utility model.

[0022] like Figures 1-5As shown, a thermos cup neck-shrinking device includes a support plate 101 fixedly connected to one end of a fixed column 1. A telescopic chamber 102 is fixedly mounted on the top of the support plate 101, and sliding blocks 120 arranged in an array around its outer side are also fixedly mounted. Each sliding block 120 has a petal-shaped mold 121 fixedly connected to its top. A fastening mechanism for controlling the rotation of a rotating tube 108 is provided at one end of a sleeve 109. The fastening mechanism includes a bolt 111, with a bolt head 112 fixedly connected to one end of the bolt 111. A first insert 113 is fixedly connected to one side of the bolt head 112. A needle groove 114 is formed in the middle of the first insert 113. A second insert 116 is movably fitted onto the outer wall of the bolt 111. The middle of the second insert 116 is a ring-shaped column, and the two sides of the ring-shaped column are symmetrically fixed. A rectangular plate extending outward is fixedly connected. One end of the sleeve 109 is provided with a groove 119, and one end of the rotating tube 108 is provided with a groove 118. The insert plate 116 is movably fitted with both the groove 118 and the groove 119. When the screw hole 117 is separated from the bolt 111, the insert plate 113 is used to fit with the groove 118 to control the rotation of the rotating tube 108. A washer 115 is movably fitted on the outer wall of the bolt 111 and on one side of the insert plate 116. A screw hole 117 is provided at the center of one end of the rotating tube 108 and inside the sleeve 109. The screw hole 117 is used to thread the bolt 111. A necking mechanism 110 is provided on the outer wall of one end of the sleeve 109, and its inner wall contour matches the necking shape of the cup body.

[0023] According to the above structure, the thermos cup blank can be inserted from above the necking mechanism 110. The cup cover is set outside the necking mechanism 110. The petal mold 121 supports the arc-shaped transition inner wall below the cup mouth. When processing the cup mouth, the gasket 115 and the second insert 116 are located between the bolt head 112 and the rotating tube 108. Half of the second insert 116 is embedded in the first groove 118 and the other half is embedded in the second groove 119. The bolt 111 and the screw hole 117 are in a screw-locked state. The second insert 116 restricts the rotation of the rotating tube 108, while the bolt 111 and the bolt head 112 restrict the vertical movement of the second insert 116, thereby locking the rotating tube 108, the screw-in mechanism, etc. The position of the sliding block 120 and the petal mold 121 is fixed, and the tightening direction of the bolt 111 is the same as the rotation direction of the fixed column 1. The shim 115 is also made of rubber to prevent slipping and reduce shock, thereby reducing the risk of the bolt 111 loosening. When it is necessary to adjust the petal mold 121 to slide outward or inward, the tool is inserted into the needle groove 114 and rotated to separate the bolt 111 from the screw hole 117. The shim 115 and the second insert 116 are removed. The bolt 111 is rotated so that the first insert 113 is inserted into the sleeve 109 and engaged with the first groove 118. Rotating the bolt 111 can drive the rotating tube 108 to rotate, thereby controlling the rotation of the screw mechanism and adjusting the position of the petal mold 121.

[0024] See attached document Figures 2-4A reinforcing mesh 123 is fixedly connected to the outer arc of the side wall of the petal-shaped mold 121. An elastic pad 122 is fixedly connected to one side of the reinforcing mesh 123. A sleeve 109 is fixedly connected through the top of the telescopic chamber 102. The telescopic chamber 102 is equipped with a screw-in mechanism for controlling the synchronous extension and retraction of several sliding blocks 120. The screw-in mechanism includes a rotating tube 108 rotatably disposed inside the sleeve 109, and a rotating disk 104 rotatably assembled inside the telescopic chamber 102. One end of the rotating tube 108 is fixed to the rotating disk 104. The telescopic chamber 102 has several through holes 103 arranged in an array on its side arms. Telescopic rods 106 are slidably connected to the inner walls of the through holes 103 and below the rotating disk 104. One end of the telescopic rod 106 located outside the telescopic chamber 102 is fixedly connected to the sliding block 120. Several arc-shaped slots 105 are arranged in an array on the inner side of the rotating disk 104. One end of the telescopic rod 106 located inside the telescopic chamber 102 is fixedly connected to a protruding rod 107. The telescopic rods 106 are slidably connected to the arc-shaped slots 105 through the protruding rod 107.

[0025] According to the above structure, when the rotating tube 108 rotates, it will drive the rotating disk 104 to rotate. The rotating disk 104 pushes several protruding rods 107 simultaneously through the arc-shaped through groove 105, causing the telescopic rod 106 to extend or retract synchronously, thereby driving the sliding block 120 and the petal mold 121 to move. The common outer diameter of the several petal molds 121 is changed to match the mouth diameter of the cup. When the cup is slipped off the top of the constriction mechanism 110, it may collide with the petal mold 121. The elastic pad 122 is made of silicone rubber. Based on its elastic deformation characteristics, the cup will collide with the elastic pad 122 first when it falls to avoid collision. When the outer mold (the upper pressure plate) applies pressure to fix the mouth of the cup, the cup wall will also squeeze the elastic pad 122. The elastic pad 122 deforms under pressure and extends to the surroundings, which can increase the effective contact area. Its thickness change can also indirectly change the local contour curvature. And the elastic pad 122 on each of the several petal molds 121 can Independent deformation allows the arc-shaped transition inner wall of the cup to fit more closely with the petal mold 121. The reinforcing mesh 123 can be made of a metal with a certain strength, such as stainless steel or aluminum alloy. It can be connected and fixed to the elastic pad 122 through processes such as barbed injection molding, hot-press vulcanization, and chemical bonding. The reinforcing mesh 123 can suppress tearing of the elastic pad 122 under extreme conditions. Its mesh structure forces the crack to constantly change direction during expansion, increasing the energy consumption for crack expansion. This utility model can control the rotation or fixation of the screw-in mechanism through the fastening mechanism. The screw-in mechanism controls the synchronous expansion and contraction of the petal mold 121 to adapt to support cups of different diameters. The elastic pad 122 can not only prevent the inner wall of the cup from colliding with the petal mold 121, but also increase the contact area with the inner wall of the cup when compressed, improving the fit between the inner wall of the cup and the petal mold 121, thereby reducing the frequency of mold replacement and saving the cost of casting multiple molds.

[0026] The working principle of this utility model is as follows: the thermos cup blank can be inserted from above the necking mechanism 110, the cup cover is set on the outside of the necking mechanism 110, and the petal mold 121 supports the arc-shaped transition inner wall below the cup mouth. When processing the cup mouth, the gasket 115 and the second insert 116 are located between the bolt head 112 and the rotating tube 108. Half of the second insert 116 is embedded in the first groove 118 and half is embedded in the second groove 119, and the bolt 111 and the screw hole 117 are in a screw-locked state. The second insert 116 restricts the rotation of the rotating tube 108, while the bolt 111 and the bolt head 112 restrict the vertical movement of the second insert 116, thereby locking the rotating tube 108, the screw-in mechanism, etc. The positions of the sliding block 120 and the petal mold 121 are fixed, and the tightening direction of the bolt 111 is the same as the rotation direction of the fixed column 1. The shim 115 is also made of rubber to prevent slippage and reduce shock, thereby reducing the risk of the bolt 111 loosening. When it is necessary to adjust the petal mold 121 to slide outward or inward, a tool is inserted into the needle groove 114 and rotated to separate the bolt 111 from the screw hole 117. The shim 115 and the second insert 116 are removed, and the bolt 111 is rotated so that the first insert 113 is inserted into the sleeve 109 and engaged with the first groove 118. Rotating the bolt 111 can drive the rotating tube 108 to rotate, thereby controlling the rotation of the screwing mechanism and adjusting the position of the petal mold 121. When the rotating tube 111 is in the correct position, the bolt 111 is adjusted to allow the rotating tube 108 to rotate. When 08 rotates, it drives the rotating disk 104 to rotate. The rotating disk 104 pushes several protruding rods 107 simultaneously through the arc-shaped through groove 105, causing the telescopic rod 106 to extend or retract synchronously. This drives the sliding block 120 and the petal mold 121 to move. The common outer diameter of the petal molds 121 is changed to match the diameter of the cup. When the cup is slipped off the top of the constriction mechanism 110, it may collide with the petal mold 121. The elastic pad 122 is made of silicone rubber. Based on its elastic deformation characteristics, the cup will collide with the elastic pad 122 first when it falls to avoid collision. When the outer mold (the upper pressure plate) applies pressure to fix the cup mouth, the cup wall will also squeeze the elastic pad 122. The elastic pad 122 deforms under pressure and extends outwards, increasing the effective contact area. Its thickness change can also indirectly change the local contour curvature. Each of the several petal molds 121 can deform independently, allowing the arc-shaped transition inner wall of the cup to fit more closely with the petal molds 121. The reinforcing mesh 123 can be made of metal with a certain strength, such as stainless steel or aluminum alloy. It can be connected and fixed to the elastic pad 122 through processes such as barbed injection molding, hot pressing vulcanization, and chemical bonding. The reinforcing mesh 123 can suppress tearing of the elastic pad 122 under extreme conditions. Its mesh structure forces the crack to constantly change direction during expansion, increasing the energy consumption of crack expansion.

[0027] The above description is merely a preferred embodiment of this utility model. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principle of this utility model, and these improvements and modifications should also be considered within the scope of protection of this utility model. Structures, devices, and operating methods not specifically described or explained in this utility model, unless otherwise specified or limited, shall be implemented using conventional methods in the field.

Claims

1. A necking device for vacuum cup, comprising a support disc (101) fixedly connected to one end of a fixed column (1), characterized in that: The support disc (101) is fixed with a telescopic bin (102) at the top and a sliding block (120) arrayed around the outer side thereof, the top of the sliding block (120) is fixedly connected with a petal-shaped die (121), the side wall outer arc of the petal-shaped die (121) is fixedly connected with a reinforcing net (123), one side of the reinforcing net (123) is fixedly connected with an elastic pad (122), the top of the telescopic bin (102) is fixedly connected with a sleeve (109) in a through manner, the inside of the telescopic bin (102) is provided with a screwing mechanism for controlling the synchronous telescoping of a plurality of sliding blocks (120), the screwing mechanism comprises a rotating tube (108) rotatably arranged in the inside of the sleeve (109), one end of the sleeve (109) is provided with a fastening mechanism for controlling the rotation of the rotating tube (108), the fastening mechanism comprises a bolt (111), one end of the bolt (111) is fixedly connected with a bolt head (112), one side of the bolt head (112) is fixedly connected with a panel one (113), the middle part of the panel one (113) is provided with a needle slot (114), the outer wall of the bolt (111) is movably sleeved with a panel two (116), one end of the sleeve (109) is provided with an embedding groove two (119), one end of the rotating tube (108) is provided with an embedding groove one (118), the panel two (116) is movably embedded with the embedding groove one (118) and the embedding groove two (119), the center of one end of the rotating tube (108) and in the inside of the sleeve (109) is provided with a screw hole (117), the screw hole (117) is used for being threadedly connected with the bolt (111).

2. The device according to claim 1, wherein: The screwing mechanism further comprises a rotating disc (104) rotatably assembled in the inside of the telescopic bin (102), one end of the rotating tube (108) is fixedly connected with the rotating disc (104).

3. The mug necking device of claim 2, wherein: The side arm of the telescopic bin (102) is arrayedly provided with a plurality of through holes (103), the inner wall of the through hole (103) and below the rotating disc (104) are movably connected with a telescopic rod (106), one end of the telescopic rod (106) outside the telescopic bin (102) is fixedly connected with the sliding block (120).

4. The mug necking device of claim 3, wherein: The inside of the rotating disc (104) is arrayedly provided with a plurality of arc-shaped through grooves (105), one end of the telescopic rod (106) in the inside of the telescopic bin (102) is fixedly connected with a convex rod (107), the telescopic rod (106) is movably connected with the arc-shaped through groove (105) through the convex rod (107).

5. The mug necking device of claim 1, wherein: One end of the outer wall of the sleeve (109) is provided with a necking mechanism (110), the inner wall profile thereof matches the shape of the neck of a cup body.

6. The mug necking device of claim 1, wherein: The outer wall of the bolt (111) and one side of the panel two (116) are movably sleeved with a gasket (115), the middle part of the panel two (116) is provided as an annular column, and the annular column is symmetrically fixedly connected with an outwardly extending rectangular plate on both sides.

7. The mug necking device of claim 1, wherein: When the screw hole (117) is separated from the bolt (111), the panel one (113) is used to be embedded with the slot one (118) to control the rotation of the rotating pipe (108).

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