Dimension-adjustable demolding blocking device and demolding method

Abstract

The invention relates to a size-adjustable demolding blocking device and a demolding method. The demoulding blocking device comprises a supporting seat and 2-4 groups of stoppers symmetrically distributed around the supporting seat, each group of stoppers comprises a stopping block, an adjusting screw rod and a supporting column, a demoulding hole, a screw hole and a connecting hole are formed in the supporting seat, the stopping block is located in the demoulding hole, and the screw hole is located in the connecting hole. The adjusting screw rod and the supporting column penetrate through the screw hole and the connecting hole in the supporting base respectively and then are fixedly connected with the stopping blocks, the adjusting screw rod is rotated to drive the stopping blocks to be close to or away from each other, and the demolding size can be accurately adjusted by observing scales on the follow-up supporting column. The use of a release agent and the subsequent cleaning procedure caused by the use of the release agent are avoided, the shape and the enclosing diameter of the stop block can be flexibly and rapidly adjusted, one set of device is suitable for demolding of cylindrical products with different sizes, and the device has the advantages of being simple in structure, low in use and maintenance cost, good in demolding effect, high in efficiency and the like.

Description

Technical Field

[0001] The invention relates to the technical field of molds, and in particular to a size-adjustable demoulding blocking device and a demoulding method. Background Art

[0002] When producing large cylindrical products, one of the key steps is how to separate the cylindrical core from the cylinder. The effect of separation is related to production efficiency and product quality. The previous solution was to apply a release agent on the surface of the cylindrical core in advance, and after the cylinder is formed, the release agent can be used to lubricate the mold to achieve smooth demolding. However, this method also has some problems: first, the release agent needs to be consumed continuously, which increases production costs; second, the release agent will adhere to the inner wall of the cylinder, and it needs to be removed by cleaning later, which increases the process and cost; third, for some large cylindrical products with a large aspect ratio, it is difficult to demold smoothly even if the release agent is applied. Summary of the invention

[0003] One of the purposes of the present invention is to solve the above problems existing in the prior art. For this purpose, a set of size-adjustable demoulding blocking device is specially designed. The device can be used for demoulding cylindrical products of different sizes. It has the advantages of simple structure, high demoulding efficiency, low cost, etc. It can be used for a long time after one investment. To achieve the above purpose, the technical solution adopted by the present invention is as follows:

[0004] A size-adjustable demoulding blocking device comprises a support seat and a blocker symmetrically distributed around the support seat, the blocker comprises a blocking block and an adjusting screw, a demoulding hole and a screw hole are provided on the support seat, the blocking block is located in the demoulding hole, the adjusting screw passes through the screw hole on the support seat and is fixedly connected to the blocking block, and the adjusting screw is rotated to drive the blocking blocks to move closer to or farther away from each other.

[0005] Furthermore, the number of the blockers is 2-4 groups, and these blockers are distributed around the support base in a vertically symmetrical, left-right symmetrical, or axially symmetrical manner.

[0006] Furthermore, the blocker also includes a support column, and a matching connection hole is provided on the support seat. The support column passes through the connection hole on the support seat and is fixedly connected to the blocking block.

[0007] Furthermore, the support column and the adjusting screw are arranged in parallel with a certain distance, and the two move synchronously.

[0008] Furthermore, a scale is provided on the surface of the support column, which is used to conveniently observe and adjust the demoulding size so that it accurately matches the size of the cylinder and the core. On the one hand, the support column can assist in supporting the blocking block to prevent it from shaking or tilting; on the other hand, the support column can also guide the movement of the blocking block when adjusting the demoulding size; on the third level, by observing the scale on the support column, the demoulding size can be accurately and quickly adjusted.

[0009] Furthermore, the demoulding hole is any one of circular, rectangular and triangular, the contact surface between the blocking block and the product to be demoulded is a plane or an arc, and the product to be demoulded is any one of a cylinder, a rectangular cylinder and a triangular cylinder. This design makes the demoulding blocking device not only suitable for cylindrical products, but also can be promoted and applied to products with other shapes such as rectangular and triangular cross-sections.

[0010] Furthermore, a rubber anti-skid layer is provided on the contact surface between the blocking block and the product to be demoulded. The rubber layer is a soft material, which can protect the product from being crushed or scratched, and can increase friction to ensure smooth separation of the product from the core.

[0011] Furthermore, the aspect ratio of the product to be demoulded is not less than 5. For thick and long cylindrical products, the number of demoulding blocking devices can be appropriately increased to ensure smooth demoulding of the product.

[0012] The second object of the present invention is to provide a method for demolding using the above-mentioned device, including: first assembling the demolding blocking device, and then fixing it on the bottom plate of the demolding machine to ensure that the core and the demolding hole on the support seat are coaxial; extending one end of the product to be demolded into the demolding hole, adjusting the adjusting screw so that the blocking block clamps the product to be demolded, and then pulling out the core to complete the demolding.

[0013] Compared with existing similar technologies or products, the improved effects of the present invention are mainly reflected in the following aspects: (1) It avoids the use of release agents and the subsequent cleaning process caused by it, and the process is simpler and more convenient; (2) The shape and enclosure diameter of the blocking block can be flexibly and quickly adjusted, so it can adapt to the demolding of cylindrical products of different sizes, truly achieving one set of equipment for multiple groups of products, which is conducive to reducing costs; (3) The device has a simple structure, low use and maintenance costs, good demolding effect, and high demolding efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a three-dimensional view of the demoulding blocking device.

[0015] Figure 2 It is the front view of the demoulding blocking device.

[0016] Figure 3 It is the left view of the demoulding blocking device.

[0017] Figure 4 It is a schematic diagram of the structure of another form of demoulding blocking device.

[0018] Figure 5 It is a schematic diagram of the structure of the demoulding blocking device of the third form.

[0019] Figure markings: 1-support seat, 2-left blocking block, 3-left adjusting screw, 4-left supporting column, 5-right blocking block, 6-right supporting column, 7-right adjusting screw. DETAILED DESCRIPTION

[0020] In order to enable those skilled in the art to fully understand the technical solutions and beneficial effects of the present invention, the following is further described in detail in conjunction with specific embodiments and drawings. It should be emphasized that the embodiments listed below are preferred implementations of the present invention but not all, and any simple improvements or replacements made on this basis should fall within the scope of improvement of the present invention. In addition, for the convenience of description and brief introduction, the present invention uses directional descriptions such as front, back, left, right, top, and bottom, which does not constitute a limitation on the equipment or device.

[0021] Example 1

[0022] like Figure 1-3 The demoulding blocking device shown is adjustable in size, which mainly comprises a support base 1, a left blocker and a right blocker, wherein the two blockers are symmetrically distributed on the left and right sides of the support base 1.

[0023] The support seat 1 is made of metal, and a circular demoulding hole with a larger diameter is set in the middle part thereof, and a screw hole and a connecting hole are respectively set on the left and right sides thereof, wherein the screw hole is at the top and the connecting hole is at the bottom, and both holes are located near the horizontal center line of the support seat 1.

[0024] The left blocker is also made of metal, and includes a left block 2, a left adjustment screw 3, and a left support column 4, wherein the left adjustment screw 3 and the left support column 4 are respectively passed through the screw hole and the connection hole on the left side of the support seat 1 in a mutually parallel manner and are fixedly connected to the left block 2. An anti-slip layer is provided on the outer surface of the left block 2, and the material is rubber, which is mainly used to protect the product and increase friction.

[0025] The structure of the right blocker is the same as that of the left blocker, which includes a right blocking block 5, a right adjusting screw 7, and a right support column 4, wherein the right adjusting screw 7 and the right support column 4 are also passed through the screw holes and the connecting holes on the right side of the support seat 1 in a parallel manner and are fixedly connected to the right blocking block 5.

[0026] Example 2

[0027] like Figure 4As shown, the structure and principle of the demoulding blocking device provided in this embodiment are similar to those of Embodiment 1, except that the number of blockers is increased from 2 to 3, and these blockers are evenly distributed around the circular support seat in an axially symmetrical manner.

[0028] Example 3

[0029] like Figure 5 As shown, the structure and principle of the demoulding blocking device provided in this embodiment are similar to those of Embodiment 1, except that the number of blockers is increased from 2 to 4, and these blockers are distributed around the support seat in a vertically and horizontally symmetrical manner.

[0030] The method of using the above-mentioned size-adjustable demoulding blocking device is as follows: first assemble the demoulding blocking device, then weld and fix the support seat to the bottom plate of the demoulding machine, insert the cylinder together with the core into the demoulding hole in the middle of the support seat, tighten the adjustment bolts one by one with a wrench, push the blocking blocks closer to each other and wrap the extruded cylinder, observe the scale on the support column to ensure that each adjustment bolt is adjusted in place, and pull out the core to complete the demoulding. When the size of the cylindrical product changes, you only need to adjust the adjustment bolts in the forward or reverse direction to adapt to the new demoulding size and successfully complete the demoulding task.

Claims

1. A size-adjustable demoulding blocking device, characterized in that: The device includes a support seat and a blocker symmetrically distributed around the support seat, the blocker includes a block block and an adjusting screw, a demoulding hole and a screw hole are provided on the support seat, the block block is located in the demoulding hole, the adjusting screw passes through the screw hole on the support seat and is fixedly connected to the block block, and the adjusting screw is rotated to drive the block blocks to move closer to or away from each other.

2. The demoulding blocking device according to claim 1, characterized in that: The number of the blockers is 2-4 groups.

3. The demoulding blocking device according to claim 1, characterized in that: The blocker also includes a support column, and a matching connection hole is arranged on the support seat. The support column passes through the connection hole on the support seat and is fixedly connected to the blocking block.

4. The demoulding blocking device according to claim 3, characterized in that: The support column and the adjusting screw are arranged in parallel with each other at a certain distance, and the support column and the adjusting screw move synchronously.

5. The demoulding blocking device according to claim 3, characterized in that: A scale is also provided on the surface of the support column.

6. The demoulding blocking device according to claim 1, characterized in that: The demoulding hole is any one of circular, rectangular and triangular, the contact surface between the blocking block and the product to be demoulded is a plane or an arc, and the product to be demoulded is any one of a cylinder, a rectangular cylinder and a triangular cylinder.

7. The demoulding blocking device according to claim 1, characterized in that: An anti-slip layer is provided on the contact surface between the blocking block and the product to be demoulded.

8. The demoulding blocking device according to claim 1, characterized in that: The aspect ratio of the product to be demoulded is not less than 5.

9. A method for demoulding using the device according to any one of claims 1 to 8, characterized in that The method comprises: assembling a demoulding blocking device and fixing it on a demoulding machine bottom plate, ensuring that the core is coaxial with a demoulding hole on a support seat; extending one end of a product to be demoulded into the demoulding hole, adjusting an adjusting screw so that the blocking block clamps the product to be demoulded, and pulling out the core to complete demoulding.

Images