A sand core mold

Abstract

The utility model relates to the technical field of molds, and discloses a sand core mold, wherein a slide groove is provided on the outer wall of one side of a sleeve block, the slide groove runs through the sleeve block, two sliders are slidably connected on the inner wall of the slide groove, the two sliders are fitted together, two slots are provided on the side close to the two sliders, the two slots are respectively located on the upper and lower outer walls of the sliders, a molding groove is provided on the bottom inner wall of the top slot, two limit rods are welded on the side of one slider close to the other slider, and the two limit rods are plugged into the inner wall of the other slider. The utility model is provided with latches and sleeve blocks, and after the material is formed, the two sliders and the sleeve blocks sleeved on the sliders are lifted by holding the handles on both sides, so that the bottom of the slider cancels the restriction of the latch on the base, the sliding sleeve block cancels the fixation of the tops of the two sliders, and then one slider is taken out from the limit rod on the other slider, and the two sliders are separated, so that the material in the molding groove can be taken out, thereby improving the flexibility of the mold.

Description

Technical Field

[0001] The utility model relates to the technical field of mold equipment, in particular to a sand core mold. Background Art

[0002] The sand core mold is a mold used to prepare sand cores in conjunction with a sand shooting device. In the prior art, its structure includes a first half mold), a second half mold, and a guide mechanism. The second half mold is relatively installed above the first half mold through the guide mechanism. The first half mold and the second half mold are closed to form a complete sand core mold. The first half mold and the second half mold are both provided with sand core cavities, and the ends of the sand core cavities are also connected to sand filling channels. It adopts a guide column-guide sleeve structure to control the mold closing guide. The guide column and the guide sleeve are respectively arranged on the first half mold and the second half mold, and are evenly distributed along the four corners. The problem with this guide structure is that, especially for large molds, due to irregular deformation after heating, the mold often cannot be closed tightly, there is a gap on the parting surface, and sand escapes during the sand shooting process, resulting in insufficient sand core shooting and looseness.

[0003] The application number is CN202320616570.8, which discloses a sand core mold, including an upper mold and a lower mold, which are closed to form a complete sand core mold, and the upper mold and the lower mold are both provided with sand core cavities, and the ends of the sand core cavities are also connected with sand shooting channels, and the edge of the upper mold is provided with a guide block, and the side wall of the lower mold is provided with a guide groove for cooperating with the guide block, or the edge of the lower mold is provided with a guide block, and the side wall of the upper mold is provided with a guide groove for cooperating with the guide block; the four corners of the lower end face of the upper mold are provided with a limiting convex block, and the four corners of the upper end face of the lower mold are provided with a limiting groove for cooperating with the limiting convex block, or the four corners of the upper end face of the lower mold are provided with a limiting convex block, and the four corners of the lower end face of the upper mold are provided with a limiting groove for cooperating with the limiting convex block. The utility model utilizes the combined action of the guide block and the guide groove, and the limiting convex block and the limiting groove to complete the mold closing, and the positioning is more accurate, eliminating the influence of the mold thermal deformation on the mold closing tightness, and improving the core making quality.

[0004] A sand core mold disclosed in the above document has the following defects: during the use of the mold, after the injection molding device completes the injection of the mold, the material is molded through the mold with a sealing structure, and the molded material needs to be demolded, but the mold is provided with a limiting structure, so that the mold cannot be quickly opened for demolding.

[0005] It can be seen from this that the existing sand core mold does not have a function of rapid demoulding, and it is necessary to improve the existing deficiencies and provide a function that can enable the mold to be rapidly demoulded. Utility Model Content

[0006] The purpose of the utility model is to provide a sand core mold to solve the problems raised in the above background technology.

[0007] In order to solve the above technical problems, the utility model is realized by the following technical solutions:

[0008] The utility model discloses a sand core mold, comprising a mold and a sand core structure, wherein the sand core structure is slidably connected to the inner wall of the mold, the mold comprises a sleeve block, a slide groove is provided on one outer wall of the sleeve block, the slide groove runs through the sleeve block, two sliders are slidably connected to the inner wall of the slide groove, the two sliders are fitted together, two slots are provided on the side close to the two sliders, the two slots are respectively located on the upper and lower outer walls of the slider, a molding groove is provided on the bottom inner wall of the top slot, two limit rods are welded on the side of one slider close to the other slider, the two limit rods are located on the diagonal line of the slider, and the two limit rods are plugged into the inner wall of the other slider. The purpose of such arrangement is that during the use of the mold, the material is injected inwardly through the injection groove, the material flows to the slot through the injection groove, and then flows into the molding groove after passing through the slot. The molding groove is closed on all sides by two merged sliders, the plug block closes the bottom slot, the sleeve block fixes the tops of the two sliders on all sides, the pins position the bottoms of the two sliders, and the two limit rods merge the contact surfaces of the sliders at fixed points, so that the slot and the molding groove are merged correspondingly. When the mold is not in use, the injection groove is closed by the piston to prevent dust from entering the slot and the molding groove. After the material is molded, the two sliders and the sleeve block on the slider are lifted by holding the handles on both sides, so that the bottom of the slider cancels the restriction of the pin on the base, the sliding sleeve block cancels the fixation of the tops of the two sliders, and then one slider is taken out from the limit rod on the other slider. The two sliders are separated, and the material in the molding groove can be taken out, thereby improving the flexibility of the mold.

[0009] Furthermore, handles are welded on the outer walls of both sides of the two sliders. The purpose of this arrangement is that during the use of the mold, the two sliders and the sleeve blocks on the sliders can be lifted by holding the handles on both sides, so that the bottom of the slider can remove the restriction of the pin on the base.

[0010] Furthermore, an injection groove is provided on the upper surface of the sleeve block, the injection groove is connected to the top slot, and a piston is inserted on the inner wall of the injection groove. The purpose of this arrangement is that during the use of the mold, the material is injected inward through the injection groove, the material flows through the injection groove to the slot, and the material flows into the molding groove after passing through the slot.

[0011] Furthermore, the mold includes a base, and two latches are welded on the inner wall of the base, and the two latches are respectively plugged into the inner walls of the bottoms of the two sliders. The purpose of this arrangement is that during the use of the mold, the latches position the bottoms of the two sliders.

[0012] Furthermore, handles are welded on the outer walls on both sides of the base. The purpose of such arrangement is that during the use of the mold, the mold can be lifted and moved by holding the handles.

[0013] Furthermore, an insert block is inserted into the inner wall of the bottom of the base, and the top of the insert block is inserted into the inner wall of the bottom slot. The purpose of this arrangement is that during the use of the mold, the insert block closes the bottom slot.

[0014] The utility model has the following beneficial effects:

[0015] (1) The utility model provides a latch and a sleeve block. After the material is formed, the two sliders and the sleeve block sleeved on the sliders are lifted by holding the handles on both sides, so that the bottom of the slider cancels the restriction of the latch on the base, and the sliding sleeve block cancels the fixation of the top of the two sliders. Then, one slider is removed from the limit rod on the other slider, and the two sliders are separated, so that the material in the forming groove can be taken out, thereby improving the flexibility of the mold.

[0016] Of course, any product implementing the present invention does not necessarily need to achieve all of the advantages described above at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for describing the embodiments are briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0018] Figure 1 This is a schematic diagram of the main structure of the utility model;

[0019] Figure 2 It is a schematic diagram of the partial cross-section split structure of the utility model;

[0020] Figure 3 This is a schematic diagram of the split structure of the sand core structure of the utility model;

[0021] Figure 4 It is a schematic diagram of the partially split structure of the utility model;

[0022] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0023] In the figure: 1. mold; 100. latch; 101. base; 102. plug block; 103. handle; 104. sleeve block; 105. piston; 106. slide groove; 107. injection groove; 2. sand core structure; 201. slider; 202. handle; 203. slot; 204. molding groove; 205. limit rod. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0025] See also Figure 1 - Figure 4 As shown, the utility model is a sand core mold, comprising a mold 1 and a sand core structure 2, the sand core structure 2 is slidably connected to the inner wall of the mold 1, the mold 1 comprises a sleeve block 104, a slide groove 106 is provided on one side outer wall of the sleeve block 104, the slide groove 106 runs through the sleeve block 104, two sliders 201 are slidably connected to the inner wall of the slide groove 106, the two sliders 201 are fitted together, two slots 203 are provided on the side close to the two sliders 201, the two slots 203 are respectively located on the upper and lower outer walls of the sliders 201, a molding groove 204 is provided on the bottom inner wall of the top slot 203, two limit rods 205 are welded on the side of one slider 201 close to the other slider 201, the two limit rods 205 are located on the diagonal line of the slider 201, and the two limit rods 205 are plugged into the inner wall of the other slider 201. The purpose of such arrangement is that during the use of the mold, the material is injected inward through the injection groove 107, the material flows to the slot 203 through the injection groove 107, and then flows into the molding groove 204 after passing through the slot 203. The molding groove 204 is closed on all sides by two merged sliders 201, the insert block 102 closes the bottom slot 203, the sleeve block 104 fixes the tops of the two sliders 201, the latch 100 positions the bottoms of the two sliders 201, and the two limit rods 205 merge the contact surfaces of the sliders 201 at fixed points, so that the slot 203 and the molding groove 204 are correspondingly merged. When not in use, the injection groove 107 is sealed by the piston 105 to prevent dust from entering the slot 203 and the molding groove 204. After the material is molded, the two sliders 201 and the sleeve block 104 sleeved on the sliders 201 are lifted by holding the handles 202 on both sides, so that the bottom of the slider 201 cancels the restriction of the pin 100 on the base 101, and the sliding sleeve block 104 cancels the fixation of the top of the two sliders 201, and then one slider 201 is removed from the limit rod 205 on the other slider 201. The two sliders 201 are separated, and the material in the molding groove 204 can be taken out, thereby improving the flexibility of the mold.

[0026] Handles 202 are welded on the outer walls of both sides of the two sliders 201. The purpose of this arrangement is that when the mold is used, the two sliders 201 and the sleeve block 104 on the sliders 201 can be lifted by holding the handles 202 on both sides, so that the bottom of the slider 201 can remove the restriction of the latch 100 on the base 101.

[0027] The upper surface of the sleeve block 104 is provided with an injection groove 107, which is connected to the top slot 203, and a piston 105 is inserted into the inner wall of the injection groove 107. The purpose of this arrangement is that during the use of the mold, the material is injected inward through the injection groove 107, the material flows through the injection groove 107 to the slot 203, and then flows into the molding groove 204 after passing through the slot 203.

[0028] The mold 1 includes a base 101, on the inner wall of which two latches 100 are welded, and the two latches 100 are respectively plugged into the inner walls of the bottoms of two sliders 201. The purpose of such a setting is that the latches 100 position the bottoms of the two sliders 201 during the use of the mold.

[0029] Handles 103 are welded on the outer walls on both sides of the base 101. The purpose of being provided in this way is that during the use of the mold, the mold can be lifted and moved by holding the handles 103.

[0030] The bottom inner wall of the base 101 is plugged with an insert block 102, and the top of the insert block 102 is plugged with the inner wall of the bottom slot 203. The purpose of this arrangement is that the insert block 102 closes the bottom slot 203 during the use of the mold.

[0031] When in use, during the use of the mold, the material is injected inward through the injection groove 107, the material flows to the slot 203 through the injection groove 107, and then flows into the molding groove 204 after passing through the slot 203. The molding groove 204 is closed around by two combined sliders 201, the insert block 102 closes the bottom slot 203, and the tops of the two sliders 201 are fixed around by the sleeve block 104. The latch 100 positions the bottom of the two sliders 201, and the two limit rods 205 merge the contact surfaces of the sliders 201 at a fixed point, so that the slot 203 and the molding groove 204 are correspondingly merged. When the mold is not in use, When in use, the injection groove 107 is closed by the piston 105 to prevent dust from entering the slot 203 and the molding groove 204. When the material is formed, the two sliders 201 and the sleeve block 104 sleeved on the sliders 201 are lifted by holding the handles 202 on both sides, so that the bottom of the slider 201 cancels the restriction of the pin 100 on the base 101, and the sliding sleeve block 104 cancels the fixation of the top of the two sliders 201, and then one slider 201 is taken out from the limiting rod 205 on the other slider 201, and the two sliders 201 are separated, and the material in the molding groove 204 can be taken out, thereby improving the flexibility of the mold.

[0032] The preferred embodiments of the utility model disclosed above are only used to help explain the utility model. The preferred embodiments do not describe all the details in detail, nor do they limit the utility model to the specific implementation methods described. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the utility model, so that technicians in the relevant technical field can well understand and use the utility model. The utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A sand core mold, comprising a mold (1) and a sand core structure (2), characterized in that: The sand core structure (2) is slidably connected to the inner wall of the mold (1). The mold (1) comprises a sleeve block (104). A slide groove (106) is provided on one side outer wall of the sleeve block (104). The slide groove (106) penetrates the sleeve block (104). Two sliders (201) are slidably connected to the inner wall of the slide groove (106). The two sliders (201) are fitted together. Two slots (203) are provided on the side close to each other of the two sliders (201). The two slots (203) are respectively located on the upper and lower outer walls of the sliders (201). A molding groove (204) is provided on the bottom inner wall of the top slot (203). Two limit rods (205) are welded on the side of one slider (201) close to the other slider (201). The two limit rods (205) are located on the diagonal lines of the slider (201). The two limit rods (205) are plugged into the inner wall of the other slider (201).

2. A sand core mold according to claim 1, characterized in that: Handles (202) are respectively welded on the outer walls of both sides of the two sliding blocks (201).

3. A sand core mold according to claim 1, characterized in that: An injection groove (107) is provided on the upper surface of the sleeve block (104), the injection groove (107) is connected to the top slot (203), and a piston (105) is inserted into the inner wall of the injection groove (107).

4. A sand core mold according to claim 1, characterized in that: The mould (1) comprises a base (101), two latches (100) are welded on the inner wall of the base (101), and the two latches (100) are respectively plugged into the bottom inner walls of two sliding blocks (201).

5. A sand core mold according to claim 4, characterized in that: Handles (103) are welded to the outer walls on both sides of the base (101).

6. A sand core mold according to claim 4, characterized in that: An insert block (102) is inserted into the inner wall of the bottom of the base (101), and the top end of the insert block (102) is inserted into the inner wall of the bottom slot (203).

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